Release 0.11 ("Seattle")
2020-11-09
We're happy to announce Perkeep version 0.11. Breaking with tradition, this release isn't about any particular new feature, but it seemed as good a time as any to cut one, given that it was repeatedly requested (on GitHub in particular). It is named after the iconic Pacific NorthWest City, where some of the latest (as well as some older ones) ideas for Perkeep were born and brainstormed.
This release is mostly a bug fixes one. However, some of the notable changes, related to the development and lifecycle of the project itself are:
- The whole project development moved to GitHub, including Pull Requests, and Continuous Integration.
- The Cloud Launcher was disabled, as it was underused, and thus not worth keeping alive.
- Dependencies are now (almost fully) handled with Go modules.
In addition, with the intention on making providers development more modular (and for other reasons explained in the project), we started this related project for importing Google Photos: gphotos-cdp.
See below for the more complete list of changes.
Downloads
Darwin
perkeep-0.11-darwin.tar.gz
SHA256: a79494d507fd076c301878af8606a7d401493b2cafa86d24e96c6a9c4f890327
Linux
perkeep-0.11-linux.tar.gz
SHA256: b3fc257a3831e7782dd76731f286d3e914c2aac37a198eee7c7f076909eb6fb9
Source
perkeep-0.11-src.zip
SHA256: 9ca95022a5b7547dbcfa0cc6558676c02d3a282f8a4b3c950d8d68291b40a4eb
Windows
perkeep-0.11-windows.zip
SHA256: 59d1303414db7bcf1e59bcac89b215c5e82a1d389fc1c1d20750d44326abddfe
Release Stats
22 total committers over 213 commits since b57013cb8296ee4b670aaf5b15ed5912595d37c6 including Angel, Attila Tajti, Brad Fitzpatrick, Chirag Sukhala, D Anzorge, Euan Kemp, Ian Denhardt, Ian Lewis, Neil Pankey, Nick Loadholtes, Niklas Merz, Omar Chehab, Omer Davutoglu, Paul Lindner, Philip Silva, Robert Günzler, Sergio Pantoja, Stephen Searles, gina, Viktor, Will Norris, mpl.
Thank you!
Other Changes
Some other changes not mentioned above but excluding the most boring cleanups:
-
app/publisher/js:
- support for sha224 hashes
-
auth:
- userpass: compare strings in constant time
-
blob:
- specify "oh, nevermind" error value for optional SubFetcher interface
-
blobserver:
-
blobserver/files:
- remove use of 'asserts' pkg
-
blobserver/google/cloudstorage:
- allow service accounts w/o GCE
-
blobserver/s3:
- use official aws client
- add unit test for endpoint handling
-
CI:
- move continuous integration tests to GitHub Actions
-
client:
- return error for unindexed attr search
-
clients/android:
- bump targetSdkVersion to 26
-
clients/osx:
- use Keepy for all app icons
- update link to new Google Group
-
dev/devcam:
- use libsqlite3 tag when -sqlite=true
- create hooks dir if it does not exist
- review: fix origin in git config
- add -branch option to review mode
- hook: correct pathspec for older gits
- hook: ignore vendor in whitespace check
- mount: look for pk-mount in GOPATH
- test: add internal and app/publisher to the list of tests
-
doc:
- remove cloud launcher mentions
- add reverse-proxy section in server-config
- add files vs permanodes explanation
- remove references to SPDY
- server-config: mention diskpacked perf trade-off.
-
fs:
- add sha224-xx...xx hint dir
-
importer:
- add "instapaper" importer for Instapaper service
- Add a Mastodon importer
- pinboard: add incremental import
- twitter: add likes import
- twitter: update importer account instruction
-
internal/geocode:
- use viewport if bounds is not defined
-
internal/magic:
- add mkv as a known video extension
-
internal/rollsum:
- replace with go4.org/rollsum
-
make.go:
- add -offline flag
- fix paths for windows
- build embeds for keepy
- add with_embed build tag to all generated resources
-
misc/docker/synology:
- tag images and build stages
- package Perkeep for Synology
-
misc/release:
- enable upload of existing archives
-
perkeepd:
- remove map zoom guided by loc: or locrect:
- added --keep-going flag to start after index/recovery errors
- opaque-ify serverinit.Config, trim camlistored.go
-
perkeepd/ui:
- viewer for plain text files
- Fix blob item video play button styling
- Implement blob detail audio
- Implement blob item audio
- Render PDFs in detail view.
- use TokenOrNone in selectall
- actually use defaults for dialog size
- treat ref: as special case only with full blobRef
- replace pudgy with keepy
- display search query errors
- add dialog to import shared items
- show progress dialog when adding items to set
- new directory view
-
pk:
- strip knownKeys from dumpconfig
- deploy: set logger to fix panic
- mount: make -version flag actually work
- mount: add schema summary to doc
- mount: add Logger, set it to discard when not debugging
-
pk-web:
- enable TLS-ALPN-01 for Lets Encrypt
- push commit to perkeep repo instead of camlistore one
- add paging on timeout for docker runs
- handle new perkeep-release download bucket
-
schema:
- expose signer and signature information on claims
-
search:
- fix dir search with logical not constraints
-
server/perkeepd/ui/goui:
- suppress basic auth on OmitAuthToken
-
server/sync:
- add sha-224 to the sync'd prefixes
-
serverinit:
- call readFields on GCE too
- revert change that enabled https if cert or key was specified
- remove reindex parameter to InstallHandlers
- make receiver names consistent
- start making serverinit.Config representation more opaque
-
sorted:
-
website:
- record version with buildinfo
- remove opencollective links
- document raw search operator
- 0.10.1 release


CORE TLV TECH TREK RENUNION 3.0
WHO: TLV trekkers + fwends
WHERE: TBD
WHEN: 9:00PM
WHAT: PARTAYYY :)
Details: bring your own cups (eco-friendly); any finger-food contributions also appreciated


Title: Improving the Clarity of Medical Images Using Filtering Techniques.
Publisher: Guru Nanak Publications
ISSN: 2249-9946
Series: Volume 8 Issue 2
Authors: Konda Sai Prakash Reddy and Nagaveni Bhummanagari
Medical imaging is a technique used for representing internal body organs, bones etc., It also helps in understanding the functionality of organs or tissues in the body. In order to diagnose or treat patients with their illnesses, in order to know the exact problem of the patient based on the symptoms, many doctors go for medical imaging.
Medical imaging, X-Ray, Filtering Technique, Butterworth high pass filter, Offset filter, Histogram equalization


Title Goes Here
Content goes here
Panel 1
This is some epic panel content
Panel 2
This is some more panel content


Genius Hour For ICS4U
void setup() {
location = "CEMC 2016 - Summer Conference";
presenter = "Andrew Seidel";
}
Important Questions
What is genius hour?
Why implement it in class?
Why the ICS4U course?
What is Genius Hour?
Genius hour (aka 20% time), is meant to allow students a break
from the regular curriculum in order for the student to learn
whatever they want to learn about. It does not
have to be related to the curriculum in any way.
Short 4 minute video
Why implement it in the classroom?
ICS4U Curriculum
In the ICS4U curriculum there is a lot of leniency towards using
genius hour while still hitting curriculum expectations.
Let's delve deeper into this section
ICS4U Curriculum
Big Ideas:
- B1: Manage software development process through: planning, development, production, and closing
- B2: Apply standard project management techniques in the context of a student-managed team project
ICS4U Curriculum
Section B:
- B1.1: Create software plan
- B1.2: Develop software product related to plan
- B1.3: Produce software according to specs
- B1.4: Use appropriate project management tools
- B1.5: Close the project out
- B1.6: Review management of project
- B1.7: Use source code management tools
- B2.1: Contribute as a team member to the project
- B2.2: Meet project goals, timelines, etc.
- B2.3: Reflect on team and individual goals
The project
Allows:
- the students to demonstrate section B of the curriculum
- the students to choose their own projects
- teachers to assess and evaluate a good chunk of the curriculum
Is this necessary?
The project...
and
Examples...


Consider the following infographic [8.12.128]: What do you notice about its content? What do you wonder about its content? There is no right or wrong way to notice and wonder, so please list as many observations and questions as you can. Are any of your noticings and wonderings related to math?in-context


/
) or backward (\
) slash in a string or
character literal. These characters are commonly used as file separators, and portability may suffer if they are hardcoded.
The inspection will not report backward slashes inside escape sequences and forward slashes immediately following the '<' character
or immediately preceding the '>' character, as those often indicate XML or HTML tags rather than file names.
Strings representing a java.util.TimeZone
ID, strings that are valid regular expressions,
or strings that equal IANA-registered MIME media types will not be reported either.
Example:
new File("C:\\Users\\Name");
Use the option to include example/*
in the set of recognized media types.
Normally, usage of the example/*
MIME media type outside of an example (e.g. in a Content-Type
header) is an error.


Normally, tuning the log buffer size is a matter of careful balance, but you can have your cake and eat it too by using the hidden _log_io_size parameter.
The log buffer in the SGA is internally divided into blocks of the log block size. The value specified by the log_buffer parameter must be a multiple of the log block size. On some operating systems it is rounded up at instance start-up if necessary. Each block in the log buffer maps to a block in the current online log file, most of the time.
Consider for example the instance illustrated in the following figure. This instance has 100 log blocks in the log buffer. After a log switch, an SGA variable (b) is set to indicate that the base disk block for the log buffer is block 2. Another SGA variable (i) is used for the index into the log buffer for redo generation. This is shown as pointing to log buffer block 30 shortly after the log switch. A little later, after several log writes have occurred, the base disk block for the log buffer is disk block 82. This maps to log buffer block 81. Redo generation continues and wraps from log buffer block 100 to log buffer block 1. At the moment illustrated the index into the log buffer for redo generation is block 5. This maps to disk block 106. The log buffer is used cyclically in this way until i maps to the last block in the log file.
There are two classes of LGWR writes: background writes, and sync writes. The distinction is merely as to whether another process has to wait for the log write to complete.
A background write by LGWR can be triggered in either of two ways. Whenever a process allocates space in the log buffer, the number of used log buffer blocks is calculated. This calculation is based on the two SGA variables mentioned above, and is performed under the protection of the redo allocation latch. If the number of used blocks is greater than or equal to the number of blocks specified by the _log_io_size parameter, and if LGWR is not already active, then LGWR is posted to perform a background write. The default value for _log_io_size is 1/3 of the log buffer expressed in log blocks (with an upper bound equivalent to 1M under Oracle8). If more than this number of log buffer blocks are used, then the redo allocation latch is released and the redo writing latch is taken to check whether LGWR is already active.
When LGWR is waiting to be posted, it sleeps on an rdbms ipc message wait with a timeout of 3 seconds (as does DBWn). A background write may also be performed if this sleep times out and LGWR finds that there is some redo available to write.
The most common cause of log sync writes is the end of a transaction. When a process finishes a transaction, normally with a commit, it generates a commit marker in the redo stream. However, the transaction is not recoverable until the log block containing that commit marker has been flushed to disk. Therefore, before the process finishing the transaction can continue, it must wait for LGWR to flush that log block to disk. That process therefore posts LGWR and then sleeps on a log file sync wait with a timeout of 1 second. If several commits occur in distinct transactions before LGWR wakes up, then the commit markers are all flushed to disk in a single sync write. This is sometimes called a group commit .
The only other process to wait for log sync writes is DBWn. DBWn cannot write a database block to disc if the redo for the most recent change to that block has not yet been flushed to the redo log file. Otherwise, if the instance were to crash before that redo could be written, there would be no way to rollback those uncommitted changes, because the redo for the corresponding undo would not yet have been written either, because it would have been part of the same unwritten redo entry.
To prevent this, Oracle maintains a record of the most recent change to each current mode database block in the buffer header structure. This is stored as a redo block address (RBA) comprised of the log file sequence number, the log file block number and an offset into the block in bytes. There are three redo block addresses in the buffer header structure - the low RBA, the recovery RBA and the high RBA. It is the high RBA that is used at this point. Before writing a batch of database blocks, DBWn finds the highest high redo block address that needs to be synced before the batch can be written. DBWn then takes the redo allocation latch to ensure that the required redo block address has already been written by LGWR, and if not, it posts LGWR and sleeps on a log file sync wait.
If the log buffer is too small, then log buffer space waits will be seen during bursts of redo generation. LGWR may not begin to write redo until the _log_io_size threshold (by default, 1/3 of the log buffer or 1M whichever is less) has been exceeded, and the remainder of the log buffer may be filled before LGWR can complete its writes and free some space in the log buffer.
Ideally, the log buffer should be large enough to cope with all bursts of redo generation, without any log buffer space waits. Commonly, the most severe bursts of redo generation occur immediately after a log switch, when redo generation has been disabled for some time, and there is a backlog of demand for log buffer space.
However, if the log buffer is very big, then the default _log_io_size threshold will be big also, and so background writes may seldom be triggered. This means that all the redo will have to be flushed by sync writes, and so log file sync waits will take longer than otherwise. This impacts commit response time, and possibly DBWn performance as well.
Of course, it is not necessary to carefully balance log buffer space waits against log file sync waits. You can have both a large log_buffer setting to avoid log buffer space waits, and a relatively small _log_io_size setting to minimize log file sync waits and reduce their duration.
However, _log_io_size must not be so small as to keep LGWR unduly active. LGWR uses the redo allocation latch both before and after each write. If LGWR is over active, then there is increased risk of redo allocation latch contention. An over active LGWR also wastes CPU time by performing multiple small writes, and by running more often which involves extra context switches. This can impact LGWR's operating system scheduling priority, which in turn degrades LGWR performance even further.
For raw log files, or file system based log files with direct I/O enabled, the optimal setting for _log_io_size is normally just below the maximum physical I/O size supported by the operating system (device driver). For file system based log files without direct I/O, a smaller setting normally works better.
Note that the _log_io_size setting must be specified in log blocks, whereas the log_buffer parameter is set in bytes. Note further that setting _log_io_size is no excuse for having a wastefully large log_buffer setting. It is very rare to require a log buffer more than a few hundred kilobytes in size.
| Copyright © Ixora Pty Ltd |
|


Merges two different objects, keeping all the values that both contain. Any values that both have in common, will be overwritten in the "target" object.


Happiness is not universally quantifiable but money is. At some point in my life I raced towards money because I could measure it. When I noticed it wasn’t making me happier I set out to make happiness my main goal. Here is a list of actions I took.
Commuting is a side effect of many jobs and sadly the higher the salary the more commute time we’re willing to do. Finding ways to shave off commute time has a proven benefit as measured by this study (PDF).
When changing jobs wasn’t a possibility I used public transportation and got an internet capable cellphone so I could deal with paperwork related annoyances during the commute. Instead of trying to find time at home I’d deal with them while in traffic. I also borrowed and bought a few books.
Today my job allows me to work from home and my commute takes about 38 seconds. I still need to commute a few days a week but I can choose to take the car and avoid rush hour traffic.
I start every day by making some tea. I had this cheap kettle that would randomly turn off on me. One day after pouring cold water over tea leaves I decided to drive to the store. Now every morning I look at the testament of a foregone frustration with a smile from ear to ear.
Removing frustrations can be as simple as moving the furniture or spending a few bucks.
A Harvard University study started in 1937 that spanned 72 years determined that healthy play can relieve daily frustrations making us happier overall.
A few years ago I joined a volleyball team and now I play a minimum of once a week.
Would doubling your income make you happier? Well it turns out that seeing a group of people that meets just once a month provided the same benefit as doubling your salary.
Once I started digging I found out that Montreal was vibrant and full of user groups and programming language enthusiasts that meet regularly. I’ve met some really interesting people through these groups and some of the contacts even helped me professionally.
  Imagine how many valid concerns are not expressed if a team has to worry about everything they say.
Good communication is perhaps the reason why those who occasionally have a single drink after work with colleagues make significantly more money on average than those who do not drink at all. Team members who do drink are probably made aware of problems and can resolve situation before they occur. It’s a different setting and we all know that a little alcohol can make shyness go away.
So it’s perhaps a stretch to make this point but seriously having a drink has some beneficial effect on the time you spend at work and that can’t all be bad since you’re there a good portion of your day.
Did anything make you happier lately and want to share?


Prunes out nodes that aren't needed for inference. (deprecated)
tf.compat.v1.graph_util.remove_training_nodes( input_graph, protected_nodes=None )
Warning: THIS FUNCTION IS DEPRECATED. It will be removed in a future version.
Instructions for updating:
Use tf.compat.v1.graph_util.remove_training_nodes
There are nodes like Identity and CheckNumerics that are only useful during training, and can be removed in graphs that will be used for nothing but inference. Here we identify and remove them, returning an equivalent graph. To be specific, CheckNumerics nodes are always removed, and Identity nodes that aren't involved in control edges are spliced out so that their input and outputs are directly connected.
input_graph
: Model to analyze and prune.protected_nodes
: An optional list of names of nodes to be kept
unconditionally. This is for example useful to preserve Identity output
nodes.A list of nodes with the unnecessary ones removed.


Products
{{data.productCount}}
Services
{{data.serviceCount}}
Back
Top
Address Book
{{cat.cat}}
{{cat.count}}
{{business.name}}
{{business.phone}}


TinyGesture.js
Very small gesture recognizer for JavaScript. Swipe, pan, tap, doubletap, and longpress.
Swipe me.
Tap me.
Press me.


To do so, mark a node and drag to another node holding both shift and control
keys, and releasing the mouse button first.
The current version of FreeMind has experimental file locking, which is disabled by default. The current implementation (0.7.1) does not really prevent race conditions, but it should be fine for the most practical purposes. What does file locking mean? It makes sure that multiple users do not edit the same map at the same time, preventing them from accidentally overwriting each other's information.
You can enable experimental file locking if you are a technical user and are willing to edit user.properties, as described in Customizing FreeMind.
You can browse the mindmaps in browse mode. Why is there a separate mode for browsing? That's because browsing is the only thing you can do in the FreeMind applet, which can be put to your website. Normally, you would not use browse mode in FreeMind.
You can browse the files on your computer using file mode. To enter file mode, in menu: Modes > File.
You can then browse the file tree as if it was a mindmap. You can make any folder the root of the map by chosing "Center" from the node menu. To view or execute a file, follow the link of the node.
The file mode is currently not very useful; it is a demonstration that it's not too difficult to feed data into the tree from other source than the mindmap. There is no evidence that people would really use this mode.
Although Freemind is primarily a tool for editing mindmaps, it is designed to be able to view data coming from different data sources. To make a specific data source available for viewing in FreeMind, a programmer has to write a so-called mode for that data source. In the standard, there is an example of such a mode, namely file mode. We do not know of any other modes implemented. It is not clear if anyone would really want to make use of this architecture, but it's here to be exploited if someone wants to.
Furthermore, there is code almost ready for Scheme Mode which enables you to edit scheme programs. Again, the usefulness is far from clear. While the mindmap mode is clearly a real thing, other modes seem to be more a demonstration of what is possible than something really used by people.


The Carpentries (a fiscally sponsored project of Community Initiatives) will use the information you provide on this form to be in touch with you and to provide updates and marketing. Please let us know all the ways you would like to hear from us:
You can change your mind at any time by clicking the unsubscribe link in the footer of any email you receive from us, or by contacting us at {{site.contact}}. Privacy policy: Our Privacy Policy
We use Mailchimp as our marketing platform. By clicking below to subscribe, you acknowledge that your information will be transferred to Mailchimp for processing. Learn more about Mailchimp's privacy practices here.


| Top |
GFileEnumerator allows you to operate on a set of GFiles,
returning a GFileInfo structure for each file enumerated (e.g.
g_file_enumerate_children()
will return a GFileEnumerator for each
of the children within a directory).
To get the next file's information from a GFileEnumerator, use
g_file_enumerator_next_file()
or its asynchronous version,
g_file_enumerator_next_files_async()
. Note that the asynchronous
version will return a list of GFileInfos, whereas the
synchronous will only return the next file in the enumerator.
The ordering of returned files is unspecified for non-Unix
platforms; for more information, see g_dir_read_name()
. On Unix,
when operating on local files, returned files will be sorted by
inode number. Effectively you can assume that the ordering of
returned files will be stable between successive calls (and
applications) assuming the directory is unchanged.
If your application needs a specific ordering, such as by name or modification time, you will have to implement that in your application code.
To close a GFileEnumerator, use g_file_enumerator_close()
, or
its asynchronous version, g_file_enumerator_close_async()
. Once
a GFileEnumerator is closed, no further actions may be performed
on it, and it should be freed with g_object_unref()
.
GFileInfo * g_file_enumerator_next_file (GFileEnumerator *enumerator
,GCancellable *cancellable
,GError **error
);
Returns information for the next file in the enumerated object. Will block until the information is available. The GFileInfo returned from this function will contain attributes that match the attribute string that was passed when the GFileEnumerator was created.
See the documentation of GFileEnumerator for information about the order of returned files.
On error, returns NULL
and sets error
to the error. If the
enumerator is at the end, NULL
will be returned and error
will
be unset.
enumerator |
||
cancellable |
optional GCancellable object, |
[allow-none] |
error |
location to store the error occurring, or |
A GFileInfo or NULL
on error
or end of enumerator. Free the returned object with
g_object_unref()
when no longer needed.
[nullable][transfer full]
gboolean g_file_enumerator_close (GFileEnumerator *enumerator
,GCancellable *cancellable
,GError **error
);
Releases all resources used by this enumerator, making the
enumerator return G_IO_ERROR_CLOSED
on all calls.
This will be automatically called when the last reference is dropped, but you might want to call this function to make sure resources are released as early as possible.
enumerator |
||
cancellable |
optional GCancellable object, |
[allow-none] |
error |
location to store the error occurring, or |
void g_file_enumerator_next_files_async (GFileEnumerator *enumerator
,int num_files
,int io_priority
,GCancellable *cancellable
,GAsyncReadyCallback callback
,gpointer user_data
);
Request information for a number of files from the enumerator asynchronously.
When all i/o for the operation is finished the callback
will be called with
the requested information.
See the documentation of GFileEnumerator for information about the order of returned files.
The callback can be called with less than num_files
files in case of error
or at the end of the enumerator. In case of a partial error the callback will
be called with any succeeding items and no error, and on the next request the
error will be reported. If a request is cancelled the callback will be called
with G_IO_ERROR_CANCELLED
.
During an async request no other sync and async calls are allowed, and will
result in G_IO_ERROR_PENDING
errors.
Any outstanding i/o request with higher priority (lower numerical value) will
be executed before an outstanding request with lower priority. Default
priority is G_PRIORITY_DEFAULT
.
enumerator |
||
num_files |
the number of file info objects to request |
|
io_priority |
the I/O priority of the request |
|
cancellable |
optional GCancellable object, |
[allow-none] |
callback |
a GAsyncReadyCallback to call when the request is satisfied. |
[scope async] |
user_data |
the data to pass to callback function. |
[closure] |
GList * g_file_enumerator_next_files_finish (GFileEnumerator *enumerator
,GAsyncResult *result
,GError **error
);
Finishes the asynchronous operation started with g_file_enumerator_next_files_async()
.
enumerator |
||
result |
a GAsyncResult. |
|
error |
a GError location to store the error occurring, or |
a GList of GFileInfos. You must free the list with
g_list_free()
and unref the infos with g_object_unref()
when you're
done with them.
[transfer full][element-type Gio.FileInfo]
void g_file_enumerator_close_async (GFileEnumerator *enumerator
,int io_priority
,GCancellable *cancellable
,GAsyncReadyCallback callback
,gpointer user_data
);
Asynchronously closes the file enumerator.
If cancellable
is not NULL
, then the operation can be cancelled by
triggering the cancellable object from another thread. If the operation
was cancelled, the error G_IO_ERROR_CANCELLED
will be returned in
g_file_enumerator_close_finish()
.
enumerator |
||
io_priority |
the I/O priority of the request |
|
cancellable |
optional GCancellable object, |
[allow-none] |
callback |
a GAsyncReadyCallback to call when the request is satisfied. |
[scope async] |
user_data |
the data to pass to callback function. |
[closure] |
gboolean g_file_enumerator_close_finish (GFileEnumerator *enumerator
,GAsyncResult *result
,GError **error
);
Finishes closing a file enumerator, started from g_file_enumerator_close_async()
.
If the file enumerator was already closed when g_file_enumerator_close_async()
was called, then this function will report G_IO_ERROR_CLOSED
in error
, and
return FALSE
. If the file enumerator had pending operation when the close
operation was started, then this function will report G_IO_ERROR_PENDING
, and
return FALSE
. If cancellable
was not NULL
, then the operation may have been
cancelled by triggering the cancellable object from another thread. If the operation
was cancelled, the error G_IO_ERROR_CANCELLED
will be set, and FALSE
will be
returned.
enumerator |
||
result |
a GAsyncResult. |
|
error |
a GError location to store the error occurring, or |
gboolean
g_file_enumerator_is_closed (GFileEnumerator *enumerator
);
Checks if the file enumerator has been closed.
gboolean
g_file_enumerator_has_pending (GFileEnumerator *enumerator
);
Checks if the file enumerator has pending operations.
void g_file_enumerator_set_pending (GFileEnumerator *enumerator
,gboolean pending
);
Sets the file enumerator as having pending operations.
GFile *
g_file_enumerator_get_container (GFileEnumerator *enumerator
);
Get the GFile container which is being enumerated.
Since 2.18
GFile * g_file_enumerator_get_child (GFileEnumerator *enumerator
,GFileInfo *info
);
Return a new GFile which refers to the file named by info
in the source
directory of enumerator
. This function is primarily intended to be used
inside loops with g_file_enumerator_next_file()
.
This is a convenience method that's equivalent to:
1 2 3 |
gchar *name = g_file_info_get_name (info); GFile *child = g_file_get_child (g_file_enumerator_get_container (enumr), name); |
enumerator |
||
info |
a GFileInfo gotten from |
Since 2.36
“container”
property“container” GFile *
The container that is being enumerated.
Flags: Write / Construct Only


{{#if deprecated }}
The {{ kind }} "{{ name }}" is deprecated. {{{ deprecated }}} {{#unless deprecated }} Please contact the Origami team with any questions. {{/unless}}


It requires a ResourceBundle named VoteSmart. This means a file
named votesmart.properties must be found in your class path, such
as your resources directory. This VoteSmart client reads two
keys from the resource bundle, one of which is mandatory.
These are in the form of key=value, one on each line.
The keys are:
apikey (Mandatory) get and APIKEY from VoteSmart.org
cache (Optional) such as c:/tmp/VoteSmartCache
For Example: apikey=123easyasabcbabyyouandme cache=c:/tmp/votesmart
The queries will be cached and all subsequent calls will return the same information. If you want to disable the cache checking, then call VoteSmart.setCache(false); or VoteSmart.setCache(true); to turn it back on.


UK Man Makes the Most of Severe Flooding, Pulls Out Jet Ski
Danny Light, a northern Englishman from the UK’s South Yorkshire, was recently caught making the most of a severe flooding situation after he decided to ride his Jet Ski in a newly-formed pond in his Thurcroft community.
Light’s antics were recorded by Ross Halley, who told Storyful that he’d initially found out about the watercraft adventure after Light posted on a local Facebook page asking if any residents minded him messing about in the flooded area.
Although some believed Light to be joking, they soon discovered he was not trying to practice his comedic skills. “Within half an hour [of the Facebook post going live], he was riding the Jet Ski around the massive puddle,” Halley explained.
It’s unclear if any community members appreciated or objected to Light’s move to take advantage of the flooding.


Remove the specified C2 Profile from the database. This does NOT delete or stop the container.
View the current C2 profile
View the current profile's description, and/or supported payload types.
Name
Description
Supported Payloads
[[p.name]]
Author (twitter handle)
Is this a P2P profile?
Is this Server Routed?
Does Mythic handle encryption?
View Profile Parameters
C2 profiles can have parameters that can get stamped in at payload creation time. Here, you will specify the "description" that will be presented to the user for the parameter and the "name" that will be stamped out when the profile is created.
Name
Description
Instance Configuration
Parameter Type:
Default Value:
Is Parameter Required to be supplied?
Supply a regex that the value must match to be considered valid:
Should Parameter be randomized for each instance?
Randomization Regex - On each instance, a new value matching the below regex will be generated:
Provide Instance Values and Instance Name
Provide values for this C2 profile that can be used to auto-populate fields when creating payloads later. This helps save time so you don't have to type out the values each time you create a payload.
Name
Value
[[i.name]]
(Required)
(Bad Value)
Provide Instance Values and Instance Name
Provide values for this C2 profile that can be used to auto-populate fields when creating payloads later. This helps save time so you don't have to type out the values each time you create a payload.
Select instance:
Name
Value
[[i.name]]
(Required)
(Bad Value)
C2 Profile STDOUT/ STDERR Messages
Messages will disappear when this dialog is closed. Received Message:


{% extends 'layouts/master.html' %} {% import './macros/paginate.html' as paginate %} {% import './macros/macros.html' as macros %} {% import './macros/ads.html' as ads %} {% block embed %}
These are the only people that can see these messages and respond to them.


Register
you can create new account in a minute.
I accept the
Terms
&
Privacy Policy
Register
Already have an account?
Sign in


Published queries
-
{% for query in published_queries %}
- {% if query.title %}{{query.title}}{% else %}Untitled query #{{query.id}}{% endif %} {{query.last_touched|timesince}} {% else %} This user has not published any of their queries yet. {% endfor %}
Starred Queries
-
{% for star in stars %}
- {% if star.query.title %}{{star.query.title}}{% else %}Untitled query #{{star.query.id}}{% endif %} {% else %} This user has not starred any queries yet. {% endfor %}
Draft Queries
-
{% for query in draft_queries %}
- {% if query.title %}{{query.title}}{% else %}Untitled query #{{query.id}}{% endif %} {{query.last_touched|timesince}} {% else %} This user has not drafted any queries {% endfor %}


savinay nathan chandrasekhar
Unafffiliated
CEO of Minds Matter Colorado
University of Pennsylvania - BS Systems Engineering '03 Thunderbird School of Global Management - MBA Global Management '10 The Broad Center - Masters in Educational Leadership, '13
80221
My entire job is advocating for under-represented voices in our community -- I'm the CEO of Minds Matter Colorado, which connects driven and determined high school students from low-income families with the people, preparation, and possibilities they need to succeed in college, create their futures, and change the world. My goal is to help eradicate systemic inequity in higher education for our students, and to expand our programming to provide access to Minds Matter to every student, corner-to-corner across Colorado. In addition I've been asked to speak at multiple conferences and summits on issues related to creativity, innovation, collaboration, diversity, equity, inclusion, and anti-racism, including the Harvard Innovation Summit, B:Civic Summit, Colorado Mentoring Summit, and the National Association of Independent Schools People of Color Conference.
I've donated to campaigns for people that I know (Aaron Goldhamer, Lisa Cutter, Mike Johnston, Chantell Taylor) for various local and federal offices, and I've donated to Elizabeth Warren's Presidential Campaign. However I've supported and voted for many Republican and Independent candidates over the years as well. I consider myself firmly centrist, independent, and nonpartisan. My goals are to support what is in the best interests of our country and state, not what's in the best interest of any individual or political entity.
I've been on the boards of the Luminary Learning Network (a collection of innovative schools within the Denver Public School district), the Civic Canopy (an organization geared towards building cultures of collaboration across the state), and the Denver Metro Chamber Leadership Foundation (an organization that serves to educate and inspire civic leaders in the Denver Metro community), as well as the Minds Matter Colorado and Minds Matter National organizations. I have also been nominated to serve on the Trust of the Rocky Mountain Vipassana Association, a volunteer-led non-profit to teach meditation techniques. I've also volunteered with myriad organizations in various capacities, ranging from providing presentations to teachers and social entrepreneurs, to leading workshops and panels on diversity/equity/inclusion and education.
As are many others, I'm concerned and often overwhelmed by all issues being politicized and partisan, and for elected officials who continually seem unwilling to compromise in a professional and communal manner. All too often members of both parties seem more concerned with solidifying their own interests and political purposes than looking out for constituents and the greater good -- this is something George Washington specifically warned us about and we're seeing come into fruition. Especially in a state like Colorado, where so many voters are unaffiliated, the power of parties to draw districts should be minimized or eliminated. I'm grateful that Colorado has independent commissions to do so, and I know the importance of well-drawn non-partisan districts. I'm honored to be considered for the opportunity to ensure the next 10 years are designed to serve the citizens of Colorado, not political parties.
People who know me will vouch for my willingness to engage with everyone, put judgment to the side, and have meaningful conversations with people who disagree with me. My search is for the truth, not for the upper hand. I seek common ground and shared values and vision, and I consider my ability to bring people together for a higher purpose to be one of my strong suits. In addition, in my past as a consultant, I have trained organizations and groups on effective collaboration, creativity, and consensus-building, so I have a great deal of background, knowledge, skills, and practical experience in building consensus and finding collaborative solutions for difficult problems. I feel strongly that I'd be able to build consensus in contentious environments if I think the cause is powerful and important enough. This redistricting commission feels like exactly such a cause -- I think ensuring the voices of Coloradans of all beliefs, backgrounds, and communities are valued and equitably reflected in our representation is one of the highest callings in the great democratic republic that is the United States of America.
I'm an engineer by training -- my undergraduate degree is in Systems Engineering from the University of Pennsylvania and I love crunching numbers and analyzing data, drawing important conclusions to inform our work. I've studied extensive statistical analysis, econometrics, and data crunching in my undergraduate work, and feel quite comfortable drawing conclusions and crafting a narrative from data. In addition, as the CEO of a small but rapidly growing entrepreneurial non-profit, I am perennially thinking strategically and big picture -- What is the current state? Where do we want to go? How can we get from here to there? What needs to happen in what order? I do this all rationally and logically, and lay out steps in a clear process, but with an emotional connection to the end goal, and bringing along teams of volunteers to achieve that goal.
Male


Inside a large bay, Yevpatoria is a bustling summer resort with two blue flag beaches. The old town is close to the harbour and well worth a visit.
Position 45°11.2’N, 32°22.8’E.
Currently this port is closed to international shipping.
This was recorded as a Ukrainian a Port of Entry, but the current situation is not known.
Call Port Authorities of VHF channel 16.
Last updated February 2016.
This harbour offers shelter from W winds. Visiting yachts can either berth on the commercial pier if space is available, or anchor.


Pseudo Wire Reference |
1. First, we need to create the package.
2. Goto the addons
folder where the Pseudo Wire executable is found.
3. Create a folder and name it however you wish. This will be your project's root folder. For this example, I will name it "ExampleAddon"
4. Open you newly created folder and create a file. Rename it to info.xml
. This is where all your information about your addon will be stored. Read more here.
5. Now create a folder in the same place as the info.xml
, rename it to lua
. This is where your scripts will be stored.
6. Open the lua
folder and create another folder. Rename it to math
. This is a category folder which will store any related scripts.
7. Open the math
folder and create a file. Rename it to adding.lua
. This is your script file for the adding gate.
8. Open adding.lua
in the text/script editor of your choise.
In adding.lua
, create the function Component:onSpawn()
|
function Component:onSpawn() end |
Inside the onSpawn()
event, what we want to do first is set the image to represent the component. To do this, we call self:SetImage(string filename)
. We'll use the Standard's math_add.png
image file.
|
function Component:onSpawn() self:SetImage("math_add.png") end |
SetImage
. This is because when all addons are loaded, all images are loaded and names cached. If math_add.png
is the only image using that filename of all loaded addons, it will select that image. However, if there is multiple, there may be a conflict issue and the game will load the first loaded image using that name.
After the self:SetImage
call, we will define the Inputs of the Adding Gate.
|
function Component:onSpawn() self:SetImage("math_add.png") self:SetInputs( { { "A", TYPE_NUMBER, 2, 12 }, { "B", TYPE_NUMBER, 2, 20 }, { "C", TYPE_NUMBER, 2, 28 }, { "D", TYPE_NUMBER, 2, 36 } } ) end |
SetInputs
is called with a Table of Tables. The table that is sent to SetInputs
contains multiple tables, that store information about all of the inputs."A"
input. The "A"
table must have four (4) properties, in the following order:string portname, ENUM_TYPE type, number port_x, number port_y
portname
is a string that represents the name of the input. For example: in game, if you were to wire an input, a context menu of input names will appear. That's where portname
comes in.type
tells the game what type of input data does it receive. The different options are:TYPE_NUMBER, TYPE_STRING, TYPE_ANY
.TYPE_ANY
will allow any data to be sent to the input. In this case, we'll use TYPE_NUMBER because we want to add all the inputs together into a sum.port_x
and port_y
define the local coordinates of the pin. These are needed so that Pseudo Wire knows where to draw the wire link.
Next comes the self:SetOutputs
call. This will define the outputs of the Adding Gate.
|
function Component:onSpawn() self:SetImage("math_add.png") self:SetInputs( { { "A", TYPE_NUMBER, 2, 12 }, { "B", TYPE_NUMBER, 2, 20 }, { "C", TYPE_NUMBER, 2, 28 }, { "D", TYPE_NUMBER, 2, 36 } } ) self:SetOutputs( { { "Out", TYPE_NUMBER, self:GetWidth()-2, 12 } } ) end |
self:SetInputs
in terms of the "Tables in Table."TYPE_ANY
as a data type, or an error will occur.self:GetWidth()
in the Output's port_x
. This is because the pin is located at the opposite side of the image. self:GetWidth()
will return the width of the image representing the component.
If you wish, you may add a call to self:SetToolTip("Adding Gate")
in the onSpawn()
event which will display a tooltip when the mouse hovers over the component in game.
In adding.lua
, create the function Component:onInputsTriggered()
|
function Component:onInputsTriggered() end |
There are three (3) ways to grab the values from the inputs:
self:GetInputValue(number port), self:GetAllInputValues(), self:GetInputsTable()
Here are examples on how to use these functions:
|
local a = self:GetInputValue(1) a -- value in first port local a,b,c,d = self:GetAllInputValues() a -- value in first port local inputs = self:GetInputTable() inputs[1] -- value in first port |
self:GetAllInputValues()
:
function Component:onInputsTriggered() |
Now that we have the data of all the inputs, we add them together, and send them out of the Output port using self:TriggerOutput(number port, data)
.
|
function Component:onInputsTriggered() local a,b,c,d = self:GetAllInputValues() self:TriggerOutput(1, a+b+c+d) end |
self:TriggerOutput
does not have a specific type. You can send data to it as long as it matches with the output's data type. Which in this case, is a number.
We have now finished scripting the adding.lua
file. That wasn't so difficult, was it?
Here is what your finished Lua script should look like for adding.lua
:
|
function Component:onSpawn() self:SetImage("math_add.png") self:SetInputs({ { "A", TYPE_NUMBER, 2, 12 }, { "B", TYPE_NUMBER, 2, 20 }, { "C", TYPE_NUMBER, 2, 28 }, { "D", TYPE_NUMBER, 2, 36 } }) self:SetOutputs({ { "Out", TYPE_NUMBER, self:GetWidth()-2, 12 } }) self:SetToolTip("Adding Gate") end function Component:onInputsTriggered() local a,b,c,d = self:GetAllInputValues() self:TriggerOutput(1, a+b+c+d) end |
Now what we have to do is implement the script into the addon. This will make Pseudo Wire aware that the script even exists.
Save and Close out of adding.lua
and open the info.xml file we created earlier in the root of the addon folder.
This assumes you have some knowledge of XML.
In info.xml
, create a <package>
tag. This is a root tag that will define your addon.
The <package>
tag includes three (3) attributes:
name
represents the name of the package. In this example, I will use "Example".
author
represents the author(s) of the package. In this example, I will use "Jamie".
version
represents the version of the package. In this example, I will use "1.0.0". Version doesn't have to be in this format.
|
<package name="Example" author="Jamie" version="1.0.0" > </package> |
Inside the <package>
tag, create a <category>
tag. This will define a category of items.
The <category>
tag includes two (2) attributes:
name
represents the name of the category. In this example, I will use "Math". If a category with the same name exists, it will merge the two together.
path
represents the folder name of this category in the ../ExampleAddon/lua/
folder. I will use the math
folder we created earlier.
|
<package name="Example" author="Jamie" version="1.0.0" > <category name="Math" path="math" > </category> </package> |
Inside the <category>
tag, create an <item>
tag. This will define an item.
The <item>
tag includes two (2) attributes:
name
represents the name of the item. In this example, I will use "Adding Example".
path
represents the filename of this item in the ../ExampleAddon/lua/math/
folder. Use the adding.lua
we scripted earlier.
In between the opening and closing tags, you may place a short description of the item.
|
<package name="Example" author="Jamie" version="1.0.0" > <category name="Math" path="math" > <item name="Adding Example" path="adding.lua" > My first component! </item> </category> </package> |
Save and Close out of the info.xml, and start up Pseudo Wire.
When you open up the tree menu, open up the Math
category. You should see your newly created component in there.
Wire it up, test to make sure it works, and have fun!
If you wish to continue scripting, check out the Pseudo Wire Lua API to learn more script functions.


On this page you can control which IP addresses are allowed to access
your Jabber server. If any addresses are entered into the Allowed client
IPs section, then only those addresses will be granted access - otherwise
any address will be allowed to connect. However, any address listed in
the Denied client IPs section will be blocked, whether it is on
the allowed list or not.
Both fields accept IP addresses (like <IP_ADDRESS>) or IP/netmask pairs
(like <IP_ADDRESS>/<IP_ADDRESS>) for specifying an entire network.


Loading...
What do these areas mean to you?
-
Draw the outline of an area on the map
-
Describe the area however you like.
For example:
- Tell us what you call that neighbourhood
- Describe something you like about the area
- What activities do you associate with that place?
-
Take a screen shot and paste it in to Miro!
Draw an area outline
Take a screenshot and add it to Miro!
Thanks!


Car and Driver Magazine : New STi and Skyline GT-R Due Soon : November 2004
"The illustration above, purloined by our man in Japan, is an insider's estimation of what the next Impreza WRX STi will look like. Although many of the characteristic features of the current car are carried over—hood scoop, aggressive fender flares, enormous wing—the rest of the car shares some styling elements with Subaru's new corporate face, exemplified by the B9 Scrambler concept car designed by Andreas Zapatinas and displayed on a pedestal at the 2003 Tokyo show. The front-end styling of the concept is shown here and is reportedly the face of future Subarus. A new Impreza WRX STi should hit Japanese roads in 2007 and ours soon after." It looks like the STi is evolving away from its rally car heritage. Still, I like the new look. Gee my STi will almost be paid for by 2008. Just in time to buy a new model with a new look? (Hope the wife doesn't read this *evil-grin*)


Building a metrics library.. and abandoning it again
Author: Kasper B. Graversen
[Introduction] [All categories] [All articles] [Edit article ]
Monitoring
Metrics
A tale of how we created a simple monitoring mechanism for our application. The implementation cover the foundation of monitoring frameworks in general. As our implementation grew in size and complexity, we realized our mistake and replaced it with an existing framework on the market.
Please show your support by sharing and voting:
Table of Content
- 1 Introduction
- 2 The home brew metrics library implementation
- 3 Evaluation
- 4 Introducing the Okanshi library
- 5 Summary
1 Introduction
The other day I was writing a service that would fetch data, transform it and ship it to some other service. The thing about services, especially when you have many of them, is that you really would want to know how they are doing. Have they crashed? Are they processing at an unusual rate etc. For that you need application metrics.
2 The home brew metrics library implementation
This is how it started. Since I only wanted to know the successes of my application I defined a simple class SpeedOMeter
. "How hard could it be?" I reckoned.. And from there I went down a rabbit hole. Our implementation gradually increased in size and complexity, as more and more issues revealed themselves.
class Speedometer
{
public int Success { get; }
public void RegisterSuccess(){ Success++; }
}
2.1 Speedometer - counting failures
It didn't last long however, until I realized that knowing the number of failures was just as important, if not more. Thus I extended the application.
class Speedometer
{
public int Success { get; }
public int Fail { get; }
public void RegisterSuccess(){ Success++; }
public void RegisterFail(){ Fail++; }
}
2.2 Business code that is being monitored
We almost forgot. We need some business code that we want to monitor.
class BusinessLogic
{
public void Execute()
{
while(true)
{
var rows = Db.Fetch(...);
foreach(var row in rows)
{
var success = DoStuff(row);
if(success)
speedOMeter.RegisterSuccess();
else
speedOMeter.RegisterFail();
}
}
}
}
2.3 Speedometer - measuring the rate
So know we how roughly how the application is doing, but we do not know if the service lives up to its "SLA". It turns out, that the service had to process and deliver a certain amount of messages a day. Hence, the rate of processing is important too. With the rate in hand, I can quickly verify if my initial implementation is fast enough or if optimizations are required. It also helps us when we, in the future, extend the functionality that perhaps impact performance negatively.
To measure the rate, we need a time dimension. We group our two counters Success
and Fail
in a class Measurement
along with a timespan.
public class Measurement
{
const int MillisecondsPrHour = 1000 * 3600;
public int Fail = 0;
public int Success = 0;
public TimeSpan Duration;
public int Total => Fail + Success;
public double MessagesPrHour =>
Math.Abs(Duration.TotalMilliseconds) < 1
? 0
: (Total * MillisecondsPrHour) / Duration.TotalMilliseconds;
}
and
We use this class from our SpeedOMeter. Notice how when we query for a measurement, we get the accumulated metrics since last we queried. This works fine as long as only one client is querying.
public class SpeedOMeter
{
DateTime startTime = DateTime.Now;
Measurement measurement = new Measurement();
public void RegisterSuccess() { measurement.Success++; }
public void RegisterError() { measurement.Fail++; }
public Measurement GetSpeedAndReset()
{
measurement.Duration = DateTime.Now - startTime;
Measurement result = measurement;
measurement = new Measurement();
startTime = DateTime.Now;
return result;
}
}
2.4 Thread safety
Up until this point we disregarded threads altogether. In order to speed my service up, it concurrently handles messages in threads. But this means, we must ensure thread safety. The easiest way I know to do this is to lock down shared resources using Lock
. I don't mind using locks since I know they are really fast. I've investigated this and documented my findings on http://firstclassthoughts.co.uk/Tags/lock.html.
Basically, we lock down every access to the SpeedOMeter class.
public class SpeedOMeter
{
readonly object _lock = new object();
DateTime startTime = DateTime.Now;
Measurement measurement = new Measurement();
public void RegisterSuccess()
{
lock (_lock) { measurement.Success++; }
}
public void RegisterError()
{
lock (_lock) { _measurement.Fail++; }
}
public Measurement GetSpeedAndReset()
{
lock (_lock)
{
measurement.Duration = DateTime.Now - startTime;
Measurement result = measurement;
measurement = new Measurement();
startTime = DateTime.Now;
return result;
}
}
}
2.5 Pulling out measurements
Now that we have all the measuring scaffolding in place, we still need something that at regular intervals pulls out the metrics and published them. I read a long running task for this in my main thread where the service starts.
void ServiceStart()
{
var speedoMeter = new SpeedOMeter();
var cancellationTokenSource = new CancellationTokenSource();
var token = cancellationTokenSource.Token;
speedOMeterTask = Task.Run(() =>
{
var client = new LogSystemClient("<IP_ADDRESS>");
var health = new MetricsObserver(client, speedoMeter);
var frequency = TimeSpan.FromMinutes(5);
health.Execute(token, frequency);
}
...
This rely on an actual implementation MetricsObserver
that pulls out the data and converts it for some receiver system (Splunk, Elastic Search, InfluxDb, ...). We try to "play nice" by supporting the cancellation token in the event some one is trying to stop our service.
class MetricsObserver
{
readonly IClient client
readonly SpeedOMeter speedoMeter;
public MetricsAndHealthcheck(ILogger logger, SpeedOMeter speedoMeter)
{
client = logger;
speedoMeter = speedoMeter;
}
public void Execute(CancellationToken token, TimeSpan frequency)
{
while (!token.IsCancellationRequested)
{
var cancelled = token.WaitHandle.WaitOne(frequency);
if (cancelled)
break;
var measurement = speedoMeter.GetSpeedAndReset();
string json = JSon.Convert(measurement);
client.Transmit(json);
}
}
}
Oh, and perhaps we should use async
when pulling out the metrics and submitting them...
3 Evaluation
To evaluate. We ended up with quite a bit of code. More than first anticipated! And admittedly, it was great fun to do! The code was fairly easy for me to churn out, but I also suspect my experience in the field being the explanation, as some non-trivial concepts are involved. And perhaps my implementation still has some glaring omissions and bugs. I haven't used the code enough for me to say.
One thing is for certain, if we choose to stick with the implementation, the code needs be extracted into a reusable library. We don't want general infrastructure code in our service. Inevitably, more services will be developed that needs monitoring too. And we don't want to re-implement all of it again.
I think three things stand out in particular.
- As we use the code, we kept finding new things that needed implementing. What was a small 4 line class ended up being many classes. It is doubtful that we really have a sufficiently mature code base.
- There is a low degree of abstractions in the implementation. E.g. we can only measure one metric, and we do not support several "metric observers" since the first pulling out metrics will reset it for the next.
- There are still major missing feature points. There is no "health check" end-point or otherwise functionality to tell some monitoring system that we are alive. Or how about an OWIN integration for your webservice implementations - just to name a few.
I think those evaluation points tells us that it's time to look around for greener pastures. Find an existing monitoring library. That library will provide us a more bug-free code base, more feature rich and with more abstractions. Abd perhaps also a helpful community.
4 Introducing the Okanshi library
I've chosen to show case the library Okanshi. I have dabbled around with a few monitoring libraries, and Okanshi strikes a nice balanced between performance, sensible defaults and easy to extend to cater for your own needs. The code base is only around 1000 lines of code, most of which is fairly grokable.
Relating Okanshi to our implementation, Okanshi provides a number of various metrics we can hook into. It also provides out of the box, a scheduler for collecting metrics.
Rather than messing around with threads and tasks, you can set up scheduling of metric collection using:
void ServiceStart()
{
var api = new MonitorEndpoint();
api.Start();
This will create a http endpoint in your service from which you can poll the latest metrics. It also creates a health check endpoint.
The business logic is almost the same as before
class BusinessLogic
{
...
while(true)
{
OkanshiMonitor.BasicTimer("send").Record(() =>
{
var rows = Db.Fetch(...);
foreach(var row in rows)
{
var s = Stopwatch.StartNew();
var success = DoStuff(row);
s.Stop();
if(success)
OkanshiMonitor.BasicTimer("success").Register(s.ElapsedMilliseconds);
else
OkanshiMonitor.BasicTimer("fail").Register(s.ElapsedMilliseconds);
}
});
}
}
As you can see, we are now using the general timer BasicTimer
rather than a bespoke SpeedOMeter
. If we want to keep that interface, nothing prevents us from wrapping Okanshi-metrics in bespoke classes.
Another thing you may notice is that I've changed the metrics slightly. Rather than counting the success and failures and the speed, we now have three timers instead. It is not be obvious, but a BasicTimer
not only measure the execution time of some code, it also count the number of invocations. I.e. it is a counter as well as a timer.
We chose the "standard route" of using in-built metrics for two reasons.
One, Okanshi does not come out of the box with a success-fail-timer like the one we created. Second, and perhaps more importantly, when working with monitoring, it is very easy to set up some metrics, and then when working with them for a while (or they don't provide the insights needed) you change them. In my case, I found that since error-handling touches the database among other things, it may be very insightful to know how the performance of the failure handling as well. So we create an overall "send" metric to calculate a speed, and two timers, one for each scenario.
5 Summary
We created our own bespoke SpeedOMeter class. It turned into a longer affair involving threads and timers. Before ending up developing a large framework ourselves, and having to find all the bug that inevitably has crept in, we chose to ditch it all and use one of the existing full-blown monitoring frameworks on the market.
But all is not lost! The implementation we presented convey the fundamentals of basically any monitoring framework out there. So thats the lesson here I guess.
Please show your support by sharing and voting:
Congratulations! You've come all the way to the bottom of the article! Please help me make this site better for everyone by commenting below. Or how about making editorial changes? Feel free to fix spelling mistakes, weird sentences, or correct what is plain wrong. All the material is on GitHub so don't be shy. Just go to Github, press the edit button and fire away.
Read the Introduction or browse the rest of the site


|
| | Z_mod () |
| | Default value 0. More...
|
| |
| | Z_mod (bool x) |
| | Initialize from 0,1. More...
|
| |
| | Z_mod (int x) |
| | Initialize from int. More...
|
| |
| | Z_mod (int64_t x) |
| | Initialize from 64bit int. More...
|
| |
| | operator char () const |
| |
| | operator short () const |
| |
| | operator int () const |
| |
| | operator int64_t () const |
| |
| | operator unsigned char () const |
| |
| | operator unsigned short () const |
| |
| | operator unsigned int () const |
| |
| | operator uint64_t () const |
| |
| Z_mod< N, T > | operator+ (Z_mod< N, T > b) const |
| |
| Z_mod< N, T > | operator- (Z_mod< N, T > b) const |
| |
| Z_mod< N, T > & | operator+= (Z_mod< N, T > b) |
| |
| Z_mod< N, T > & | operator-= (Z_mod< N, T > b) |
| |
| Z_mod< N, T > & | operator*= (Z_mod< N, T > b) |
| |
| Z_mod< N, T > & | operator/= (Z_mod< N, T > b) |
| |
| bool | operator== (Z_mod< N, T > a) const |
| |
| bool | operator!= (Z_mod< N, T > a) const |
| |
| bool | operator<= (Z_mod< N, T > a) const |
| | Needed for Eigen pruning; standard order on 0,...,N-1. More...
|
| |
template<int64_t N, typename T = int64_t>
class mackey::Z_mod< N, T >
The class of Z/N coefficients where N is prime.
The operators are self explanatory. User must ensure that N is prime for division to work.


{% extends "layout.html" %} {% block page_title %}500{% endblock %} {% block page_content %} 500 Error Sorry, something went wrong with the server. {% endblock %}
Sorry, something went wrong with the server.


|
STL Concepts
|
Specifies that the type is a pointer-like object which can be compared to std::nullptr_t objects. More...
#include <nullable_pointer.hpp>
Specifies that the type is a pointer-like object which can be compared to std::nullptr_t objects.
Requirements
The type must meet all of the following requirements:
In addition, a value-initialized object of the type must produce a null value of that type. This null value shall only be equivalent to itself. Default initialization of the type may have an indeterminate value.
An object of the type must be contextually convertible to bool. The effect of this conversion returns false if the value is equivalent to its null value and true otherwise.
None of the operations that this type performs may throw exceptions.
The type must satisfy the following additional expressions, given two values p and q that are of the type, and that np is a value of std::nullptr_t type (possibly const qualified):
| Expression | Effects |
|---|---|
| Type p(np); Type p = np; | Afterwards, p is equivalent to nullptr |
| Type(np) | A temporary object that is equivalent to nullptr |
| p = np | Must return a Type&, and afterwards, p is equivalent to nullptr |
| p != q | Must return a value that is contextually convertible to bool. The effect is !(p == q) |
| p == np np == p | Must return a value that is contextually convertible to bool. The effect is (p == Type()) |
| p != np np != p | Must return a value that is contextually convertible to bool. The effect is !(p == np) |
| T | - type to be checked |


The web application localizes your current position and receives the weather data.
Developed as a semestral work as a part of the course 4IZ268 Web Technologies.
Nikolas Charalambidis
Email: nikolas.charalambidis@gmail.com


Includes information about a given audio file
If initialized with a file URL, the file URL it came from
@property (nonatomic, copy, readonly, nullable) NSURL *inputFileURL;
var inputFileURL: URL? { get }
If initialized with a file URL, where the transcoder should produce the transcoded PCM audio file
@property (nonatomic, copy, readonly, nullable) NSURL *outputFileURL;
var outputFileURL: URL? { get }
In seconds. UINT32_MAX if unknown.
@property (nonatomic) UInt32 estimatedDuration;
var estimatedDuration: UInt32 { get set }
The PCM audio data to be transferred and played
@property (nonatomic, copy, readonly) NSData *_Nonnull data;
var data: Data { get }
The size of the PCM audio data in bytes
@property (nonatomic, readonly) unsigned long long fileSize;
var fileSize: UInt64 { get }
Initialize an audio file to be queued and played
- (nonnull instancetype)initWithInputFileURL:(nonnull NSURL *)inputURL
outputFileURL:(nonnull NSURL *)outputURL
estimatedDuration:(UInt32)duration;
init(inputFileURL inputURL: URL, outputFileURL outputURL: URL, estimatedDuration duration: UInt32)
The file that exists on the device to be transcoded and queued
The target URL that the transcoded file will be output to
The duration of the file
The audio file object
Initialize a buffer of PCM audio data to be queued and played
- (nonnull instancetype)initWithData:(nonnull NSData *)data;
init(data: Data)
The PCM audio data buffer
The audio file object


Version 3.10.2
Dropzone.js is a light weight JavaScript library that turns an HTML element into a dropzone. This means that a user can drag and drop a file onto it, and the file gets uploaded to the server via AJAX.
If you want support, please use stackoverflow with the
dropzone.js
tag and not the GitHub issues tracker. Only post an issue here if you think you discovered a bug or have a feature request.
Please read the contributing guidelines before you start working on Dropzone!
Starting with version 2.0.0 this library does no longer depend on jQuery (but it still works as a jQuery module).
It is written as a component but there’s a standalone version, and an AMD module that’s compatible with RequireJS in the downloads folder.
thumbnail(file, data)
and display the image wherever you likeFor the full documentation and installation please visit www.dropzonejs.com
Please also refer to the FAQ.
For examples, please see the GitHub wiki.
Implicit creation:
html
<form id="my-awesome-dropzone" action="/target" class="dropzone"></form>
That’s it. Really!
Dropzone will automatically attach to it, and handle file drops.
Want more control? You can configure dropzones like this:
js
// "myAwesomeDropzone" is the camelized version of the ID of your HTML element
Dropzone.options.myAwesomeDropzone = { maxFilesize: 1 };
…or instantiate dropzone manually like this:
js
new Dropzone("div#my-dropzone", { /* options */ });
Note that dropzones don’t have to be forms. But if you choose another element you have to pass the
url
parameter in the options.
For configuration options please look at the documentation on the website or at the source.
I use emitter to manage events. If you want to register to some event you can do so on the dropzone
object itself:
js
Dropzone.options.myDropzone({
init: function() {
this.on("error", function(file, message) { alert(message); });
}
});
// or if you need to access a Dropzone somewhere else:
var myDropzone = Dropzone.forElement("div#my-dropzone");
myDropzone.on("error", function(file, message) { alert(message); });
For a list of all events, please look at the chapter »listen to events« in the documentation or at the source.
For all the other browsers, dropzone provides an oldschool file input fallback.
I realize that there are already other libraries out there but the reason I decided to write my own are the following:
You might also be interested in my open source tooltip library Opentip.
(The MIT License)
Copyright (c) 2012 Matias Meno<EMAIL_ADDRESS>Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


Ford F-150 Raptor Might Have New Reason To Fear Chevy Silverado
Shocking it's taken this long.
by Jay TraugottThe Ford F-150 Raptor was an instant smash hit when the original premiered for 2010 and has remained so until today. Ford's chief truck rivals, Chevrolet and Ram, were caught somewhat off-guard by the Raptor's popularity and it's taking each of them time to offer a proper response. Fortunately, Chevy might have something cooking thanks to a certain aftermarket tuner it's already doing business with. Muscle Cars and Trucks spoke to the Silverado's marketing director, Hugh Milne, about the possibility of a Silverado Bison. You know, like a larger counterpart to the Colorado ZR2 Bison that was built in partnership with aftermarket outfitter American Expedition Vehicles, or AEV.
The Colorado ZR2 Bison is also a smash hit with a nearly $50,000 price tag. Surely there's room for a Silverado version. "I think there's a history there with Chevrolet and AEV, and you're going to see that history continue. Especially as we look at more off-road opportunities," Milne said.
Okay, but what about a Silverado Bison, specifically? "Who knows, right? The possibilities are endless. You look at what we've done with Trail Boss, and I wouldn't rule anything out." MCT also brought the subject up with AEV directly, but no direct response was offered.
In the past, AEV has pointed out that half-ton pickup trucks pose "a tough business case" because the enthusiast market typically prefers pre-runner style trucks that can have their way with sand dunes and the like. Technically speaking, an AEV-outfitted Silverado 1500 is totally possible. It could simply offer the same or similar features found on the Colorado ZR2 Bison, such as hot-stamped steel skid plates, unique wheels, a winch-ready front bumper, and tubular steel bumper and side skirt protection.
You Might Also Like
The fact that the Colorado ZR2 Bison kit is a $5,750 addition on top of the base price has not deterred buyers, and Ford Raptor buyers easily pay upwards of around $60,000. Clearly, there's a market out there, but the question is whether Chevy, with or without AEV's help, will ultimately go for it. They may soon be forced to because the Raptor will soon receive its first real competitor from Ram, the Hellcat-powered Rebel TRX.


| PostgreSQL 9.0.10 Documentation | ||||
|---|---|---|---|---|
| Prev | Up | Chapter 17. Server Setup and Operation | Next |
While the server is running, it is not possible for a malicious user to take the place of the normal database server. However, when the server is down, it is possible for a local user to spoof the normal server by starting their own server. The spoof server could read passwords and queries sent by clients, but could not return any data because the PGDATA directory would still be secure because of directory permissions. Spoofing is possible because any user can start a database server; a client cannot identify an invalid server unless it is specially configured.
The simplest way to prevent spoofing for local connections is to use a Unix domain socket directory (unix_socket_directory) that has write permission only for a trusted local user. This prevents a malicious user from creating their own socket file in that directory. If you are concerned that some applications might still reference /tmp for the socket file and hence be vulnerable to spoofing, during operating system startup create a symbolic link /tmp/.s.PGSQL.5432 that points to the relocated socket file. You also might need to modify your /tmp cleanup script to prevent removal of the symbolic link.
To prevent spoofing on TCP connections, the best solution is to use SSL certificates and make sure that clients check the server's certificate. To do that, the server must be configured to accept only hostssl connections (Section 19.1) and have SSL server.key (key) and server.crt (certificate) files (Section 17.8). The TCP client must connect using sslmode=verify-ca or verify-full and have the appropriate root certificate file installed (Section 31.1).


import pandas as pd
import numpy as np
import json
# 시각화 라이브러리
import plotly.graph_objects as go
import plotly.express as ex
# 선형회귀분석 (OLS) 라이브러리
import statsmodels.api as sm
import statsmodels.formula.api as smf
# 표준화·정규화 라이브러리
from sklearn.preprocessing import MinMaxScaler
from sklearn.preprocessing import StandardScaler


This ancient city was originally call Caffa (or Kaffa). As well as being the largest commercial and naval port in this region of the Crimea, Feodosyia also has many beaches, mineral springs and mud baths, and in the high season is a popular resort town.
Position 45°02.4’N, 35°25.0’E.
Currently this port is closed to international shipping.
This was recorded as a Ukrainian a Port of Entry, but the current situation is not known.
Call Port Authorities of VHF channel 16.
Last updated February 2016.
This harbour is open the the north and northeast but offers good shelter in winds from other directions.
There appears to be room to anchor here and the holding is good, however a stern line ashore may be required. Otherwise berth to the east pier or where directed.
This is a state owned port and therefore charges, if any, are cheap.
It may be possible for fuel and water to be delivered.
Basic provisons can be obtained in the town. Some repairs are possible and there is a mobile crane.
Last updated September 2011.


World Wiki
Info
Close
World Wiki gets you latest info of countries in the world from wikipedia.
Created By:
Rushi
Back


This application is built to help builders or handymen in some basic measurements without a need to use any tools.
It provides you with three basic tools:
- Level
- Compass
- Ruler
Level works exactly the same way as a real tool when you hold your phone in a portrait position and rotate it to left or right. The squares show you if the device is on a level surface vertically, horizontally or at a 45° angle.
Compass requires you to put your phone flat on a surface, and it will show you where the different directions are. It also shows you the direction in degrees.
Ruler automatically adjusts to your phone and helps you measure different things. Holding your finger on a screen can show you the exact measurement and shaking your phone toggles the ruler between centimeters and inches.


--- layout: page title: About header-img: "img/about-bg.png" ---
Any path has to start somewhere, but like any adventure, the journey is the best part.


Next: P-D4 Configure server to
Up: Dereferenceability
Previous: P-D2 Use hash URIs
This allows a large dataset to be split into multiple fractions.
Use this solution when datasets may grow to some point where it is not practical to serve all resources in single document.
An example of such combination is:
http://purl.org/eis/vocab/scor/Process#this
lavdim
2015-08-12


COVID-19
Home
(current)
COVID-19 Comoros - China REPORT
Novel Coronavirus (COVID-19) cases data provided by JHU CSSE
China - 84063
Infections - Comoros - 34
China - 4638
Deaths - Comoros - 1
China - 79310
Recovery - Comoros - 8
Back to Comoros
Compare To China
Compare to Italy
Compare to Spain


Abstract Base Classes (ABCs)¶
In this lesson we will learn about what polymorphism is, what protocols are, and how Abstract Base Classes (ABCs) help us correctly implement protocols.
lets start by understanding polymorphism
Polymorphism¶
Polymorphism is the ability to define a an operation or function that can work, without modifications, on objects of more than one type.
Polymorphism is an Object Oriented Design (OOD) concept. and as we know, python is highly OO oriented, so it should come as no surprise that polymorphism is inherent to python, and that without realizing it, we have been using polymorphism extensively already
# the len function is polymorphic -
# it works on many copntainer-like types - dicts, lists, strings, ranges etc
u = len({"one": 'is the loneliest number'}) # 1
x = len([1,2,3]) # 3
y = len("hello") # 5
z = len(range(10)) # 10
print(u, x, y, z, '\n', sep='\n')
# the max function is polymorphic, it works on many container-like types
x = max([1,2, 3, 2, 1]) # 3
y = max('hello') # 'o'
z = max( (('avram', 'cohen'), ('beni', 'levi'), ('zvi', 'arad'), ('moshe', 'zamir')) )
print(x, y, z, '\n',sep='\n')
# the print function is polymorphic - it works on *any* type
import math
print(1, {2}, [3], range(4), '5', len, math, math.sin, sep='\n')
1
3
5
10
3
o
('zvi', 'arad')
1
{2}
[3]
range(0, 4)
5
<built-in function len>
<module 'math' (built-in)>
<built-in function sin>
Writing our own polymorphic functions¶
How can we write our own polymorphic functions? easy, any python function we write is always polymorphic
Any python function is polymorphic in the sense that you can try to call it with any parameter regardless of its type. to understand wether or not the function will have the desired effect (or would perhaps simply fail by raising an exception), requires us to understand Protocols - which are discussed below
here’s an easy example:
def add(x,y):
return x+y
# our function add() is polymorphic, it works on many types and combination of types
u = add( 0.25, 0.75) # 1.0
x = add(1, 2) # 3
y = add([1,2,3], [4, 5]) # [1,2,3,4,5]
z = add( 'hello ', ' world') # 'hello world'
print(u,x,y,z, '\n', sep='\n')
1.0
3
[1, 2, 3, 4, 5]
hello world
Obviously, this function is not going to work for just any type or combination of types
add(10, 'hello')
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-14-d1478ef3d713> in <module>
----> 1 add(10, 'hello') # TypeError: unsupported operand type(s) for +: 'int' and 'str'
<ipython-input-12-396b6352e406> in add(x, y)
1 def add(x,y):
----> 2 return x+y
3
4 # our function add() is polymorphic, it works on many types and combination of types
5 u = add( 0.25, 0.75) # 1
TypeError: unsupported operand type(s) for +: 'int' and 'str'
lets explore how this works in more detail
A classical object oriented example¶
Lets imagine we are writing program for a zoo where we keep a bunch of animals. We have a class for each type of animal, and we keep a list of all the animals living in the zoo.
some of the animals are similar to ducks: such as Duck
, Mallard
and Goose
Some are not similar to ducks such as : Elephant
and Lion
#
# define some of the animal types in our zoo and what each can do
#
class Duck:
def walk(self):
print('duck walking here')
def quack(self):
print('duck quacks')
class Goose: # a goose is also very similar to a duck
def walk(self):
print('goose walking here')
def quack(self):
print('goose quacks')
class Elephant:
def walk(self):
print('elephant walk')
class Lion:
def nap(self):
print('lion napping')
# create a list of the animals in our zoo
all_animals = [Duck(), Elephant(), Lion(), Goose()]
#
# now lets write some functions to take care of animals and especially ducks in our zoo
#
def animal_type_name(animal):
return animal.__class__.__qualname__
def feed_animal(animal, food):
print('giving', food, 'to', animal_type_name(animal))
def treat_the_ducks(animals):
"""
treat the ducks finds all the ducks in the list of given animals and:
1. gives them proper exercise - walking and quacking
2. feeds them with appropriate duck food
"""
for animal in animals:
print()
print(animal_type_name(animal), ':')
try:
animal.walk() # walks like a duck?
animal.quack() # talks like a duck?
except:
continue # this is not a duck, go to next animal
# its a duck!, so give it some duck food
duck = animal
feed_animal(duck, 'duck food')
# lets feed the ducks
treat_the_ducks(all_animals)
Duck :
duck walking here
duck quacks
giving duck food to Duck
Elephant :
elephant walk
Lion :
Goose :
goose walking here
goose quacks
giving duck food to Goose
What’s happening here? We’re going through a list of animals, and trying to polymorphically call methods related to ducks on each animal, regardless of their actual type
animal.walk() # walks like a duck?
animal.quack() # talks like a duck?
python implements polymorphism in a way that’s humorously called duck-typing (or more formally as Ad hoc polymorphism). when a method is being called on a type, python just ‘tries’ to call that method at run-time and simply raises an exception if the method doesnt exist, has a different number of parameters, or if anything else failed
or more concisely, duck-typing polymorphism can be summarised as:
if it walks like a duck
and quacks like a duck
it is a duck
In our example, we considered objects that had a walk()
method and quack()
method to be enough like ducks to be fed duck food.
to be more formal, we’ve defined a duck protocol and any other object that follows this protocol can also be fed by the treat_the_ducks()
function
Protocols¶
A protocol is a contract about what a type must provide or implement in order to be able to be used in a certain way.
In our case the duck protocol is that a contract that if an object has a quack()
and walk()
method then it can be treated as a duck and be fed duck food
In many cases, protocols can be used informally, as a sort of a ‘gentelman’s agreement’ and python will not try to make explicit checks for correctly following a protocol
Lets create a new Mallard class (mallards are a type of duck) that also informally conforms to this protocol
class Mallard:
"""
a mallard is a bird that is very similar to a duck
it follows the duck protocol by implementing a walk() and quack() function
"""
def walk(self):
print('mallard walking here')
def quack(self):
print('mallard quacks')
# function treat_the_ducks() doesn't know anything about Mallards
# but since it follows the the duck protocol, it can be fed using the same function
treat_the_ducks( [ Mallard() ] )
Mallard :
mallard walking here
mallard quacks
giving duck food to Mallard
Abstract base classes (ABCs)¶
Is there a way for us to express this duck protocol in a way that would make it easy for us to implement new classes of Ducks and make sure that all of the conform to the protocol?
lets introduce ABCs by defining a new abstract base class called AbstractDuck
that captures all there is to know about what being a duck is like
from abc import ABC, abstractmethod
class AbstractDuck(ABC):
@abstractmethod
def walk(self):
print(animal_type_name(self), 'walking here')
@abstractmethod
def quack(self):
print(animal_type_name(self), 'quacks')
What’s going on here?¶
Declared a new class called
AbstractDuck
Declared that it is a type of ABC by inheriting from the ABC class
Defined two methods
walk()
andquack()
and marked them as abstract using an@abstractmethod
decorator
What’s abstract about abcs?¶
Abstract classes cannot be instantiated into objects (they only capture an idea)
my_new_duck = AbstractDuck()
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-52-dd1dce9299b8> in <module>
----> 1 AbstractDuck()
TypeError: Can't instantiate abstract class AbstractDuck with abstract methods quack, walk
Using your ABCs¶
class AmericanWigeon(AbstractDuck):
"""
a wigeon is another type of duck-like bird. cute!
"""
def walk(self):
AbstractDuck.walk(self)
def quack(self):
AbstractDuck.quack(self)
new_duck = AmericanWigeon()
treat_the_ducks( [ new_duck ] )
AmericanWigeon :
AmericanWigeon walking here
AmericanWigeon quacks
giving duck food to AmericanWigeon
What happens if we don’t override all the methods?¶
If a type does not override all the abstract methods of an ABC, it will continue to be abstract and cannot be instantiated
class Cormorant(AbstractDuck):
def walk(self):
print('cormorant walking')
# notice we haven't overriden the quack() method
bird = Cormorant()
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-10-b2c9c88c912b> in <module>
5 # notice we haven't overriden the quack() method
6
----> 7 bird = Cormorant()
TypeError: Can't instantiate abstract class Cormorant with abstract methods quack
Using ABCs to check for protocol¶
what if similarly to treat_the_ducks()
, we need to a write a function that should only work on
types that follow the duck protocol?
How about using the isinstance()
function? certainly that would work for objects of type AmericanWigeon
it inherites from AbstractDuck
.
what about the other duck-like types such as Duck
, Mallard
, and Goose
that we implemented before we wrote AbstractDuck?
def is_it_a_duck(animal):
"""
use isinstance() function against AbstractDuck to determine if the given animal is a duck"
"""
is_duck = isinstance(animal, AbstractDuck)
if is_duck: print(animal_type_name(animal), 'IS a duck')
else: print(animal_type_name(animal), 'is NOT a duck')
# works as expected
is_it_a_duck(AmericanWigeon())
print()
# unfortunately this method doesn't (YET!) seem to recognize our other duck classes that
# didnt inherit from AbstractDuck
is_it_a_duck(Duck())
is_it_a_duck(Mallard())
is_it_a_duck(Goose())
AmericanWigeon IS a duck
Duck is NOT a duck
Mallard is NOT a duck
Goose is NOT a duck
Do we need to change the code for Duck
, Mallard
, and Goose
to be able to detect that these are also ducks?
fortunately, the answer is NO
Registering types¶
We can register Duck
, Mallard
, and Goose
as also being a sort-of subclass of AbstractDuck using the AbstractDuck.register()
function
after calling this function on our other duck types, calls to isinstance(animal, AbstractDuck)
will return True.
This is called virtual subclassing
AbstractDuck.register(Duck)
AbstractDuck.register(Mallard)
AbstractDuck.register(Goose)
# now isinstance() can be used to check if an object is a duck
is_it_a_duck(Duck())
is_it_a_duck(Mallard())
is_it_a_duck(Goose())
print()
# and obviously, it has no effect on other types we have not registered
is_it_a_duck(Lion())
Duck IS a duck
Mallard IS a duck
Goose IS a duck
Lion is NOT a duck
Summary¶
What have we learned?
Learned what polymorphism is, and seen some simple polymorphism examples in python
We’ve learned that polymorphism in python is achieved through a simple mechanism known as duck-typing
We’ve learned that protocols are informal contracts about how objects can be used - often that means which functions these objects must have
We’ve learned what Abstract Base Classes (ABCs) are
motivation to use ABCs to make sure classes conform to a protocol
how to create new ABCs to capture a protocol
checking if a class conforms to a protocol by using isinstance with an ABC
registering classes that did not inherit from an ABC - virtual subclassing


{% load static %}
$$$$$$\ $$ __$$\ $$\ $$\ $$$$$$$$\ $$$$$$$\ $$ / \__|$$$$$$\ \$$\ $$ |\____$$ |$$ __$$\ $$$$\ $$ __$$\ \$$$$ / $$$$ _/ $$ | $$ | $$ _| $$ | \__| $$ $$< $$ _/ $$ | $$ | $$ | $$ | $$ /\$$\ $$$$$$$$\ $$ | $$ |$$\ $$ | $$ | \__/ \__|\________|\__| \__|\__|\__| \__| Simple URL Sortener - Made by Smith Jesko


EXCLUSIVE: Michael Franzese on "The Mafia" Only Existing in Italy, US is "La Cosa Nostra"
by Jessica ToddMichael Franzese opened up to VladTV about why the mafia only exists in Italy, and he explained that the U.S. has a similar organization called La Cosa Nostra. He went on to explain that potential members of La Cosa Nostra have to have paternal Italian lineage, but Franzese added that they prefer that both the person's mother and father are Italian.
During the conversation, Michael also spoke about the press hounding his father in the 1960s, and he added that he believes his father got more press than John Gotti during his heyday. To hear more, including Franzese recounting the story of 60 crime bosses being detained during a coincidence during a meeting in Apalachin, New York, hit the above clip.
Purchase Micahel Franzese's book Blood Covenant: The Story of the "Mafia Prince" Who Publicly Quit the Mob and Lived here: - https://amzn.to/2KefHAK


Save the canvas on the web page as a video.
git clone https://github.com/tawaship/CanvasRecorder.git
<script src="/path/to/dist/CanvasRecorder.min.js"></script>
npm install --save @tawaship/canvas-recorder
import { CanvasRecorder } from '@tawaship/canvas-recorder';
const { CanvasRecorder } = require('@tawaship/canvas-recorder');
const canvas = document.getElementsByTagName("canvas")[0]; // Canvas you want to record.
CanvasRecorder.createAsync(canvas)
.then(recorder => {
recorder.start();
setTimeout(()=> {
recorder.finishAsync()
.then(movie => {
movie.download();
});
}, 2000);
});
note:
When including the audio being played on the screen in the video, due to technical restrictions, we are executing navigator.mediaDevices.getDisplayMedia()
to share the screen.
Only the audio is extracted without capturing the screen, and the screen sharing is canceled as soon as the recording ends.
Be very careful when using it, or do not run it if you are unreliable.
const canvas = document.getElementsByTagName("canvas")[0]; // Canvas you want to record.
CanvasRecorder.createWithAudioAsync(canvas)
.then(recorder => {
recorder.start();
setTimeout(()=> {
recorder.finishAsync()
.then(movie => {
movie.download();
});
}, 2000);
});
Generated using TypeDoc


{% extends 'base.html' %} {% block page_title %}{{ block.super }} - What is a barrier{% endblock %} {% block page_content %} {% include 'partials/heading.html' with caption="Market access barriers" text="About the Digital Market Access Service" %}
Read about different types of barriers and why it's important to report them.
When you enter details of market access barriers, you're enabling colleagues across government in the UK and overseas to work together more effectively to resolve them. You're also helping to create a worldwide knowledge base.
You can view barriers created by other colleagues across government. You can see all barriers in all regions, or filter for the regions or barrier types you’re interested in and can create saved searches so you’re automatically shown barriers you're interested in.
The information you enter can only be seen by government colleagues. You should enter as much detail as you can.
When contributing to a barrier that you did not create, add yourself to the barrier team so colleagues know your role and can contact you if needed.
Questions on this system should be directed to the Bilateral Trade Relations Team in DIT, who coordinate this work centrally.
Market access barriers are a significant impediment to global trade and investment and this work has the potential to value of billions of pounds to the UK economy. Removing market access barriers can enable greater exports and investment overseas as new opportunities are created. Opening markets should provide dividends for UK businesses – otherwise we are targeting the wrong barriers.
Market access barriers are problems that delay or obstruct UK businesses trading and investing overseas. Barriers can take the form of tariffs or non-tariff barriers and ODI restrictions, such as having to train and use local workers. They can affect goods, services or investments. There are 2 types of market access barriers – short term and long term.


cups_selinux
Section: cups SELinux Policy documentation (8)Updated: cups
Index Return to Main Contents
NAME
cups_selinux - Security Enhanced Linux Policy for the cups processesDESCRIPTION
SELinux Linux secures cups (Common UNIX printing system) processes via flexible mandatory access control.
FILE CONTEXTS
SELinux requires files to have an extended attribute to define the file type.You can see the context of a file using the -Z option to lsP Policy governs the access confined processes have to these files. SELinux cups policy is very flexible allowing users to setup their cups processes in as secure a method as possible.
The following file types are defined for cups:
cups_pdf_exec_t
- Set files with the cups_pdf_exec_t type, if you want to transition an executable to the cups_pdf_t domain.
- Paths:
-
/usr/lib/cups/backend/cups-pdf, /usr/lib64/cups/backend/cups-pdf
cups_pdf_tmp_t
- Set files with the cups_pdf_tmp_t type, if you want to store cups pdf temporary files in the /tmp directories.
cupsd_config_exec_t
- Set files with the cupsd_config_exec_t type, if you want to transition an executable to the cupsd_config_t domain.
- Paths:
-
/usr/sbin/printconf-backend, /usr/sbin/hal_lpadmin, /usr/libexec/cups-pk-helper-mechanism, /usr/libexec/hal_lpadmin, /lib/udev/udev-configure-printer, /usr/bin/cups-config-daemon
cupsd_config_var_run_t
- Set files with the cupsd_config_var_run_t type, if you want to store the cupsd config files under the /run directory.
cupsd_etc_t
- Set files with the cupsd_etc_t type, if you want to store cupsd files in the /etc directories.
- Paths:
-
/usr/share/cups(/.*)?, /etc/cups(/.*)?
cupsd_exec_t
- Set files with the cupsd_exec_t type, if you want to transition an executable to the cupsd_t domain.
cupsd_initrc_exec_t
- Set files with the cupsd_initrc_exec_t type, if you want to transition an executable to the cupsd_initrc_t domain.
cupsd_interface_t
- Set files with the cupsd_interface_t type, if you want to treat the files as cupsd interface data.
cupsd_lock_t
- Set files with the cupsd_lock_t type, if you want to treat the files as cupsd lock data, stored under the /var/lock directory
cupsd_log_t
- Set files with the cupsd_log_t type, if you want to treat the data as cupsd log data, usually stored under the /var/log directory.
- Paths:
-
/var/log/cups(/.*)?, /usr/local/Brother/fax/.*.log, /var/log/turboprint.*
cupsd_lpd_exec_t
- Set files with the cupsd_lpd_exec_t type, if you want to transition an executable to the cupsd_lpd_t domain.
- Paths:
-
/usr/lib/cups/daemon/cups-lpd, /usr/lib64/cups/daemon/cups-lpd
cupsd_lpd_tmp_t
- Set files with the cupsd_lpd_tmp_t type, if you want to store cupsd lpd temporary files in the /tmp directories.
cupsd_lpd_var_run_t
- Set files with the cupsd_lpd_var_run_t type, if you want to store the cupsd lpd files under the /run directory.
cupsd_rw_etc_t
- Set files with the cupsd_rw_etc_t type, if you want to store cupsd rw files in the /etc directories.
- Paths:
-
/etc/cups/lpoptions.*, /etc/cups/subscriptions.*, /usr/local/Brother/(.*/)?inf(/.*)?, /etc/cups/ppd(/.*)?, /opt/gutenprint/ppds(/.*)?, /etc/printcap.*, /etc/alchemist/namespace/printconf(/.*)?, /usr/local/Printer/(.*/)?inf(/.*)?, /var/lib/cups/certs, /usr/local/linuxprinter/ppd(/.*)?, /etc/cups/ppds.dat, /etc/cups/certs, /etc/cups/certs/.*, /etc/cups/printers.conf.*, /var/lib/cups/certs/.*, /var/cache/foomatic(/.*)?, /etc/cups/classes.conf.*, /var/cache/alchemist/printconf.*, /etc/cups/cupsd.conf.*, /var/cache/cups(/.*)?, /usr/share/foomatic/db/oldprinterids
cupsd_tmp_t
- Set files with the cupsd_tmp_t type, if you want to store cupsd temporary files in the /tmp directories.
cupsd_var_run_t
- Set files with the cupsd_var_run_t type, if you want to store the cupsd files under the /run directory.
- Paths:
-
/var/ccpd(/.*)?, /var/ekpd(/.*)?, /var/turboprint(/.*)?, /var/run/cups(/.*)?
Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels.
PROCESS TYPES
SELinux defines process types (domains) for each process running on the systemYou can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux cups policy is very flexible allowing users to setup their cups processes in as secure a method as possible.
The following process types are defined for cups:
cupsd_t, cupsd_config_t, cupsd_lpd_t, cups_pdf_t
Note: semanage permissive -a PROCESS_TYPE can be used to make a process type permissive. Permissive process types are not denied access by SELinux. AVC messages will still be generated.
COMMANDS
semanage fcontext can also be used to manipulate default file context mappings.semanage permissive can also be used to manipulate whether or not a process type is permissive.
semanage module can also be used to enable/disable/install/remove policy modules.
system-config-selinux is a GUI tool available to customize SELinux policy settings.
AUTHOR
This manual page was autogenerated by genman.py.SEE ALSO
selinux(8), cups(8), semanage(8), restorecon(8), chcon(1)
Index
This document was created by man2html, using the manual pages.
Time: 05:34:25 GMT, December 24, 2015


"I like the shoes very much.. Very high quality."
"I really enjoyed the services they are providing."
"Love this brand and website."
"Its a very comfortable shoes"
"Good quality of products!"
"Very good service!"
Address: Lot 368, Jalan Bakar Arang, Bakar Arang, 08000 Sungai Petani, Kedah
Phone: 1-300-13-1313
Email: xqsports@hotmail.com