import "router"
"router" is a Go package for remote channel communication, based on peer-peer pub/sub model. Basically we attach a send channel to an id in router to send messages, and attach a recv channel to an id to receive messages. If these 2 ids match, the messages from send channel will be "routed" to recv channel, e.g.
rot := router.New(...) chan1 := make(chan string) chan2 := make(chan string) chan3 := make(chan string) rot.AttachSendChan(PathID("/sports/basketball"), chan1) rot.AttachRecvChan(PathID("/sports/basketball"), chan2) rot.AttachRecvChan(PathID("/sports/*"), chan3)
We can use integers, strings, pathnames, or structs as Ids in router (maybe regex ids and tuple id in future).
we can connect two routers so that channels attached to router1 can communicate with channels attached to router2 transparently.
Default size settings in router
const ( DefLogBufSize = 256 DefDataChanBufSize = 32 DefCmdChanBufSize = 64 DefBindingSetSize = 8 )
Membership identifies whether communicating peers (send chans and recv chans) are from the same router or diff routers
const ( MemberLocal = iota //peers (send chans and recv chans) are from the same router MemberRemote //peers (send chans and recv chans) are from diff routers NumMembership )
Scope is the scope to publish/subscribe (or send/recv) msgs
const ( ScopeGlobal = iota // send to or recv from both local and remote peers ScopeRemote // send to or recv from remote peers ScopeLocal // send to or recv from local peers NumScope )
Indices for sys msgs, used for creating SysIds
const ( RouterConnId = iota RouterDisconnId ConnErrorId ConnReadyId PubId UnPubId SubId UnSubId NumSysIds )
Some system level internal ids (for router internal logging and fault reporting)
const ( RouterLogId = NumSysIds + iota RouterFaultId NumSysInternalIds )
var IntSysIdBase int = -10101 //Base value for SysIds of IntId
var PathSysIdBase string = "/10101" //Base value for SysIds of PathId
var StrSysIdBase string = "-10101" //Base value for SysIds of StrId
func Broadcast(v interface{}, recvers []*endpoint)
Simple broadcast is a plain function
func ExportedId(id Id) bool
A function used as predicate in router.idsForSend()/idsForRecv() to find all ids in a router's namespace which are exported to outside
func MemberString(m int) string
return the string values of membership
func ScopeString(s int) string
return string values of Scope
a message struct containing information for peer (sender/recver) binding/connection. sent by router whenever peer attached or detached.
Type: the type of event just happened: PeerAttach/PeerDetach/EndOfData Count: how many peers are still bound now
type BindEvent struct { Type BindEventType Count int //total attached }
type BindEventType int8
const ( PeerAttach BindEventType = iota PeerDetach EndOfData )
a message struct containing information about remote router connection
type ConnInfoMsg struct { ConnInfo string Error os.Error SeedId Id }
the common interface of all demarshaler such as GobDemarshaler and JsonDemarshaler
type Demarshaler interface { Demarshal(interface{}, reflect.Value) os.Error }
DispatchFunc is a wrapper to convert a plain function into a dispatcher
type DispatchFunc func(v interface{}, recvers []*endpoint)
func (f DispatchFunc) Dispatch(v interface{}, recvers []*endpoint)
DispatchPolicy is used to generate concrete dispatcher instances. For the kind of dispatcher which has no internal state, the same instance can be returned.
type DispatchPolicy interface { NewDispatcher() Dispatcher }
BroadcastPolicy is used to generate broadcast dispatcher instances
var BroadcastPolicy DispatchPolicy = PolicyFunc(func() Dispatcher { return DispatchFunc(Broadcast) })
RandomPolicy is used to generate random dispatchers
var RandomPolicy DispatchPolicy = PolicyFunc(func() Dispatcher { return NewRandomDispatcher() })
RoundRobinPolicy is ued to generate roundrobin dispatchers
var RoundRobinPolicy DispatchPolicy = PolicyFunc(func() Dispatcher { return NewRoundrobin() })
Dispatcher is the common interface of all dispatchers
type Dispatcher interface { Dispatch(v interface{}, recvers []*endpoint) }
FaultRaiser can be embedded into user structs/ types, which then can call Raise() directly
type FaultRaiser struct { // contains unexported fields }
func NewFaultRaiser(id Id, r Router, src string) *FaultRaiser
create a new FaultRaiser to send FaultRecords to id in router "r"
func (l *FaultRaiser) Close()
func (l *FaultRaiser) Init(id Id, r Router, src string) *FaultRaiser
func (r *FaultRaiser) Raise(msg os.Error)
raise a fault - send a FaultRecord to faultId in router
FaultRecord records some details about fault
type FaultRecord struct { Source string Info os.Error Timestamp int64 }
Id defines the common interface shared by all kinds of ids: integers/strings/pathnames...
type Id interface { //methods to query Id content Scope() int Member() int //key value for storing Id in map Key() interface{} //for id matching Match(Id) bool MatchType() MatchType //Generators for creating other ids of same type. Since often we don't //know the exact types of Id.Val, so we have to create new ones from an existing id SysID(int, ...) (Id, os.Error) //generate sys ids, also called as method of Router Clone(...) (Id, os.Error) //create a new id with same id, but possible diff scope & membership //Stringer interface String() string }
Some dummy ids, often used as seedId when creating router
var ( DummyIntId Id = &IntId{Val: -10201} DummyStrId Id = &StrId{Val: "-10201"} DummyPathId Id = &PathId{Val: "-10201"} DummyMsgId Id = &MsgId{Val: MsgTag{-10201, -10201}} )
func IntID(args ...) Id
IntId constructor, accepting the following arguments:
Val int ScopeVal int MemberVal int
func MsgID(args ...) Id
MsgId constructor, accepting the following arguments:
Family int Tag int ScopeVal int MemberVal int
func PathID(args ...) Id
PathId constructor, accepting the following arguments:
Val string (path names, such as /sport/basketball/news/...) ScopeVal int MemberVal int
func StrID(args ...) Id
StrId constructor, accepting the following arguments:
Val string ScopeVal int MemberVal int
a message struct holding information about id and its associated ChanType
type IdChanInfo struct { Id Id ChanType *reflect.ChanType ElemType *chanElemTypeData }
a message struct for propagating router's namespace changes (chan attachments or detachments)
type IdChanInfoMsg struct { Info []*IdChanInfo }
IdFilter: the common interface of filters. concrete filters should be defined by apps with app-specific rules. if no filter defined, there is no id filtering.
1. bound with specific proxy 2. defines which ids can pass in / out to router thru this proxy 3. only filter the ids of application msgs (NOT system msgs), only used in processing namespace change msgs: PubId/SubId 4. by default, if no filter is defined, everything is allowed 5. filters are used against ids in local namespace, not translated ones
type IdFilter interface { BlockInward(Id) bool BlockOutward(Id) bool }
IdTransltor: the common interface of translators. concrete transltors should be defined by apps with app-specific rules. if no translator defined, there is no id transltions.
1. bound with specific proxy 2. translate ids of in / out msgs thru this proxy, effectively "mount" the msgs thru this proxy / conn to a subrange of router's id space 3. only translate the ids of application msgs (NOT system msgs), and it will affect the ids of every app msgs passed thru this proxy - must be highly efficient 4. by default, if no translator is defined, no translation
type IdTranslator interface { TranslateInward(Id) Id TranslateOutward(Id) Id }
Use integer as ids in router
type IntId struct { Val int ScopeVal int MemberVal int }
func (id IntId) Clone(args ...) (nnid Id, err os.Error)
func (id IntId) Key() interface{}
func (id1 IntId) Match(id2 Id) bool
func (id IntId) MatchType() MatchType
func (id IntId) Member() int
func (id IntId) Scope() int
func (id IntId) String() string
func (id IntId) SysID(indx int, args ...) (ssid Id, err os.Error)
type LogPriority int
const ( LOG_INFO LogPriority = iota LOG_DEBUG LOG_WARN LOG_ERROR )
func (lp LogPriority) String() string
LogRecord stores the log information
type LogRecord struct { Pri LogPriority Source string Info interface{} Timestamp int64 }
A simple log sink, showing log messages in console.
type LogSink struct { // contains unexported fields }
func NewLogSink(id Id, r Router) *LogSink
create a new log sink, which receives log messages from id in router "r"
func (l *LogSink) Close()
func (l *LogSink) Init(id Id, r Router) *LogSink
Logger can be embedded into user structs / types, which then can use Log() / LogError() directly
type Logger struct { // contains unexported fields }
func NewLogger(id Id, r Router, src string) *Logger
NewLogger will create a Logger object which sends log messages thru id in router "r"
func (l *Logger) Close()
func (l *Logger) Init(id Id, r Router, src string) *Logger
func (r *Logger) Log(p LogPriority, msg interface{})
send a log record to log id in router
func (r *Logger) LogError(err os.Error)
send a log record and store error info in it
the common interface of all marshaler such as GobMarshaler and JsonMarshaler
type Marshaler interface { Marshal(interface{}) os.Error }
the common interface of all Marshaling policy such as GobMarshaling and JsonMarshaling
type MarshallingPolicy interface { NewMarshaler(io.Writer) Marshaler NewDemarshaler(io.Reader) Demarshaler }
use package "gob" for marshaling
var GobMarshaling MarshallingPolicy = gobMarshallingPolicy(0)
use package "json" for marshaling
var JsonMarshaling MarshallingPolicy = jsonMarshallingPolicy(1)
MatchType describes the types of namespaces and match algorithms used for id-matching
type MatchType int
const ( ExactMatch MatchType = iota PrefixMatch // for PathId AssocMatch // for RegexId, TupleId )
type MsgId struct { Val MsgTag ScopeVal int MemberVal int }
func (id MsgId) Clone(args ...) (nnid Id, err os.Error)
func (id MsgId) Key() interface{}
func (id1 MsgId) Match(id2 Id) bool
func (id MsgId) MatchType() MatchType
func (id MsgId) Member() int
func (id MsgId) Scope() int
func (id MsgId) String() string
func (id MsgId) SysID(indx int, args ...) (ssid Id, err os.Error)
Use a common msgTag as Id
type MsgTag struct { Family int //divide all msgs into families: system, fault, provision,... Tag int //further division inside a family }
var MsgSysIdBase MsgTag = MsgTag{-10101, -10101} //Base value for SysIds of MsgId
func (t MsgTag) String() string
Use file-system like pathname as ids PathId has diff Match() algo from StrId
type PathId struct { Val string ScopeVal int MemberVal int }
func (id PathId) Clone(args ...) (nnid Id, err os.Error)
func (id PathId) Key() interface{}
func (id1 PathId) Match(id2 Id) bool
func (id PathId) MatchType() MatchType
func (id PathId) Member() int
func (id PathId) Scope() int
func (id PathId) String() string
func (id PathId) SysID(indx int, args ...) (ssid Id, err os.Error)
type PolicyFunc func() Dispatcher
func (f PolicyFunc) NewDispatcher() Dispatcher
Proxy is the primary interface to connect router to its peer router. At both ends of a connection, there is a proxy object for its router. Simple router connection can be set up thru calling Router.Connect(). Proxy.Connect() can be used to set up more complicated connections, such as setting IdFilter to allow only a subset of messages pass thru the connection, or setting IdTranslator which can "relocate" remote message ids into a subspace in local router's namespace. Proxy.Close() is called to disconnect router from its peer.
type Proxy interface { Connect(Proxy) os.Error ConnectRemote(io.ReadWriteCloser, MarshallingPolicy) os.Error Start() Close() }
func NewProxy(r Router, name string, f IdFilter, t IdTranslator) Proxy
Proxy constructor. It accepts the following arguments:
1. r: the router which will be bound with this proxy and be owner of this proxy 2. name: proxy's name, used in log messages if owner router's log is turned on 3. f: IdFilter to be installed at this proxy 4. t: IdTranslator to be installed at this proxy
Random dispatcher
type RandomDispatcher rand.Rand
func NewRandomDispatcher() *RandomDispatcher
func (rd *RandomDispatcher) Dispatch(v interface{}, recvers []*endpoint)
Roundrobin dispatcher will keep the "next" index as its state
type Roundrobin struct { // contains unexported fields }
func NewRoundrobin() *Roundrobin
func (r *Roundrobin) Dispatch(v interface{}, recvers []*endpoint)
Router is the main access point to functionality. Applications will create an instance of it thru router.New(...) and attach channels to it
type Router interface { //---- core api ---- //Attach chans to id in router, with an optional argument (chan BindEvent) //When specified, the optional argument will serve two purposes: //1. used to tell when other ends connecting/disconn //2. in AttachRecvChan, used as a flag to ask router to keep recv chan open when all senders close AttachSendChan(Id, interface{}, ...) os.Error AttachRecvChan(Id, interface{}, ...) os.Error //Detach sendChan/recvChan from router DetachChan(Id, interface{}) os.Error //Shutdown router Close() //Connect this router to another router. //1. internally it calls Proxy.Connect(...) to do the real job //2. The connection can be disconnected by calling Proxy.Close() on returned proxy object //3. for more compilcated connection setup (such as setting IdFilter and IdTranslator), use Proxy.Connect() instead //Connect to a local router Connect(Router) (Proxy, Proxy, os.Error) //Connect to a remote router thru io conn ConnectRemote(io.ReadWriteCloser, MarshallingPolicy) (Proxy, os.Error) //--- other utils --- //return pre-created SysIds according to the router's id-type, with ScopeGlobal / MemberLocal SysID(idx int) Id //create a new SysId with "args..." specifying scope/membership NewSysID(idx int, args ...) Id //return all ids and their ChanTypes from router's namespace which satisfy predicate IdsForSend(predicate func(id Id) bool) map[interface{}]*IdChanInfo IdsForRecv(predicate func(id Id) bool) map[interface{}]*IdChanInfo }
func New(seedId Id, bufSize int, disp DispatchPolicy, args ...) Router
New is router constructor. It accepts the following arguments:
1. seedId: a dummy id to show what type of ids will be used. New ids will be type-checked against this. 2. bufSize: by default, 32 is the default size for router's internal channels. if bufSize > 0, its value will be used. 3. disp: dispatch policy for router. by default, it is BroadcastPolicy 4. optional arguments ...: name: router's name, if name is defined, router internal logging will be turned on, ie LogRecord generated LogScope: if this is set, a console log sink is installed to show router internal log if logScope == ScopeLocal, only log msgs from local router will show up if logScope == ScopeGlobal, all log msgs from connected routers will show up
Use strings as ids in router
type StrId struct { Val string ScopeVal int MemberVal int }
func (id StrId) Clone(args ...) (nnid Id, err os.Error)
func (id StrId) Key() interface{}
func (id1 StrId) Match(id2 Id) bool
func (id StrId) MatchType() MatchType
func (id StrId) Member() int
func (id StrId) Scope() int
func (id StrId) String() string
func (id StrId) SysID(indx int, args ...) (ssid Id, err os.Error)
| Name | Synopsis | |
|---|---|---|
| .. | ||
| PackageRouterAPI_files | ||
| docs | ||
| samples |


We’ve moved to Grand Rapids, Michigan! We miss Boston and our friends there (who helped us immensely with the move, by the way), but we’ve started to appreciate Grand Rapids on its own terms.
Ken started teaching Computer Science and Data Science at Calvin University! The first semester was joyfully overwhelming. Ken feels increasingly thankful and blessed to be there.
Susan has mostly been at home with Naomi and Esther. For ten weeks last spring, she went back to work part time for her former architecture firm, with the help of a wonderful nanny. She felt like that was a nice balance and is hoping to find a similar part time schedule here, once she finishes her architecture professional exams.
Naomi and Esther celebrated their second birthday in November. They have learned so much, going from not talking at the beginning of the year, to putting ever more complex phrases together.
Other tidbits:
2019 started with a New Year’s Day hike in Maryland with Ken’s brother Austin and (now) fiancée Mason, and finished with Ken’s parents visiting us in Grand Rapids for New Years 2020.
Ken’s parents visited us frequently during the year (coming from Maryland) and Susan’s parents visited Boston over the summer to help us pack up for our move.
Naomi and Esther were baptized at Citylife Church in Boston in June, with all grandparents attending. Baptism is a symbol of the faith we share and our hopes that the girls will grow in that faith as part of Christian community.
We enjoyed Christmas in Portland, Oregon with Susan’s parents.
We are now located closer to Susan’s extended family in Michigan.
We bought a minivan (a like-new Honda Odyssey)!
Looking forward to:
Ken teaching another two classes this spring, and hopefully finally defending his PhD thesis (long story).
Upcoming travels: to Ken’s brother Austin’s wedding mid-October, Ken traveling to Italy in March to present a paper at a conference (it finally got accepted on the third try), and maybe a few days vacationing by Lake Michigan this summer with one of Susan’s friends.
Getting connected with a local church.
Susan continuing in professional development and maybe starting work.
Naomi and Esther continuing to grow, and we’re considering starting preschool this year.
Our new address is 3654 Palmer Ridge Road SE, Grand Rapids MI 49546.


You are viewing an historical archive of past issues. Please report new issues to the appropriate project issue tracker on GitHub.
Comments
-
Greg Hurrell
You could have a look at the
file_scanner.rb
file in Command-T to see how its determining the list of files that are available; specifically, theadd_paths_for_directory
method.It's possible that is returning different results for the SMB share; and the code elsewhere is choking on it. I'd need to see how the results actually differ in order to make a call on how to fix it.
-
Greg Hurrell
Closing due to lack of activity.
-
Greg Hurrell
Status changed:
- From: new
- To: closed
Add a comment
Comments are now closed for this issue.


RTP context enable flags.
| Enumerator |
|---|
| RCE_SRTP | Use SRTP for this connection
|
| RCE_SRTP_KMNGMNT_ZRTP | Use ZRTP for key management
If this flag is provided, before the session starts, ZRTP will negotiate keys with the remote participants and these keys are used as salting/keying material for the session.
This flag must be coupled with RCE_SRTP and is mutually exclusive with RCE_SRTP_KMNGMNT_USER.
|
| RCE_SRTP_KMNGMNT_USER | Use user-defined way to manage keys
If this flag is provided, before the media transportation starts, user must provide a master key and salt form which SRTP session keys are derived
This flag must be coupled with RCE_SRTP and is mutually exclusive with RCE_SRTP_KMNGMNT_ZRTP
|
| RCE_NO_H26X_INTRA_DELAY | When uvgRTP is receiving H26X stream, as an attempt to improve QoS, it will set frame delay for intra frames to be the same as intra period.
What this means is that if the regular timer expires for frame (100 ms) and the frame type is intra, uvgRTP will not drop the frame but will continue receiving packets in hopes that all the packets of the intra frame will be received and the frame can be returned to user. During this period, when the intra frame is deemed to be late and incomplete, uvgRTP will drop all inter frames until a) all the packets of late intra frame are received or b) a new intra frame is received
This behaviour should reduce the number of gray screens during video decoding but might cause the video stream to freeze for a while which is subjectively lesser of two evils
This behavior can be disabled with RCE_NO_H26X_INTRA_DELAY If this flag is given, uvgRTP treats all frame types equally and drops all frames that are late
|
| RCE_FRAGMENT_GENERIC | Fragment generic frames into RTP packets of 1500 bytes.
If RCE_FRAGMENT_GENERIC is given to create_stream(), uvgRTP will split frames of type RTP_FORMAT_GENERIC into packets of 1500 bytes automatically and reconstruct the full frame from the fragments in the receiver
This behavior is not from any specification and only supported by uvgRTP so it will break interoperability between libraries if enabled.
RCE_FRAGMENT_GENERIC can be used, for example, when you're using uvgRTP for both sender and receiver and the media stream you wish to stream is not supported by uvgRTP but requires packetization because MEDIA_FRAME_SIZE > MTU
|
| RCE_SRTP_INPLACE_ENCRYPTION | If SRTP is enabled and RCE_INPLACE_ENCRYPTION flag is not given, uvgRTP will make a copy of the frame given to push_frame().
If the frame is writable and the application no longer needs the frame, RCE_INPLACE_ENCRYPTION should be given to create_stream() to prevent unnecessary copy operations.
If RCE_INPLACE_ENCRYPTION is given to push_frame(), the input pointer must be writable!
|
| RCE_NO_SYSTEM_CALL_CLUSTERING | Disable System Call Clustering (SCC)
|
| RCE_SRTP_NULL_CIPHER | Disable RTP payload encryption
|
| RCE_SRTP_AUTHENTICATE_RTP | Enable RTP packet authentication
This flag forces the security layer to add authentication tag to each outgoing RTP packet for all streams that have SRTP enabled.
NOTE: this flag must be coupled with at least RCE_SRTP
|
| RCE_SRTP_REPLAY_PROTECTION | Enable packet replay protection
|
| RCE_RTCP | Enable RTCP for the media stream. If SRTP is enabled, SRTCP is used instead
|
| RCE_H26X_PREPEND_SC | Prepend a 4-byte start code (0x00000001) to HEVC each frame
|
| RCE_HOLEPUNCH_KEEPALIVE | If the Mediastream object is used as a unidirectional stream but holepunching has been enabled, this flag can be used to make uvgRTP periodically send a short UDP datagram to keep the hole in the firewall open
|
| RCE_SRTP_KEYSIZE_192 | Use 192-bit keys with SRTP
|
| RCE_SRTP_KEYSIZE_256 | Use 256-bit keys with SRTP
|


source code documentation
Main Page
|
Alphabetical List
|
Data Structures
|
File List
|
Data Fields
|
Globals
|
Related Pages
DES_ks Struct Reference
#include <
des.h
>
Data Fields
union {
DES_cblock
cblock
DES_LONG
deslong
[2]
}
ks
[16]
Field Documentation
DES_cblock
DES_ks::cblock
Definition at line
63
of file
des.h
.
DES_LONG
DES_ks::deslong
[2]
Definition at line
64
of file
des.h
.
union { ... }
DES_ks::ks
[16]
The documentation for this struct was generated from the following file:
des.h
Copyright 2003 by Christian Scheurer and Niklaus Schild


What did you learn while researching Git Feature Branching and Workflow concepts? How can you use it to start organizing your Client-side Re-Vamp Project of choice?
Branches are a good way to keep optimized when developing. Allowing the dev to modify files before merging them into a known working directory and allowing an easy way to fallback if something breaks.
Why is it important to write effective Epics & User Stories?
User stories are important because it defines an end goal for all active members in the project. It defines what the user scenario is and gives the team something to build from
Name at least one (1) benefit to using Flowcharts & Pseudo Code for prototyping new features before re-vamping a project. Explain.
Flowcharts show the step by step picture of a project, using standardized symbols which are easy to read giving clear instructions on how the process works


pbmtozinc(l) pbmtozinc(l) NAME pbmtozinc - convert a portable bitmap into a Zinc bitmap SYNOPSIS pbmtozinc [pbmfile] DESCRIPTION Reads a portable bitmap as input. Produces a bitmap in the format used by the Zinc Interface Library (ZIL) Version 1.0 as output. SEE ALSO pbm(5) AUTHOR Copyright (C) 1988 by James Darrell McCauley<EMAIL_ADDRESS>and Jef Poskanzer. 02 November 1990 pbmtozinc(l)


Membership
The Hitchhiker’s Guide to the Galaxy has a few things to say on the subject of towels. A towel, it says, is about the most massively useful thing an interstellar hitch hiker can have. Partly it has great practical value — you can wrap it around you for warmth as you bound across the cold moons of Jaglan Beta; you can lie on it on the brilliant marble‐sanded beaches of Santraginus V, inhaling the heady sea vapours; you can sleep under it beneath the stars which shine so redly on the desert world of Kakrafoon; use it to sail a mini raft down the slow heavy river Moth; wet it for use in hand‐to‐hand‐combat; wrap it round your head to ward off noxious fumes or to avoid the gaze of the Ravenous Bugblatter Beast of Traal (a mindbogglingly stupid animal, it assumes that if you can't see it, it can't see you — daft as a bush, but very ravenous); you can wave your towel in emergencies as a distress signal, and of course dry yourself off with it if it still seems to be clean enough.
Fan
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Stickers, buttons, badges
Plus access to individual members only benefits at all jQuery Foundation events, and recognition on the Foundation website.
Join NowChoose your gifts and dues schedule:
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- Gifts: T-shirt, Hoodie
- Other Goodies:
Stickers, buttons, badges
Plus access to individual members only benefits at all jQuery Foundation events, and recognition on the Foundation website.
Join NowChoose your gifts and dues schedule:
Hero
- Gifts: T-shirt, Hoodie
- Other Goodies:
Stickers, buttons, badges
Plus access to individual members only benefits at all jQuery Foundation events, and recognition on the Foundation website.
Join Now


From this dashboard you can control your fleet of IoT-powered siege devices!
The superior siege weapon
Use the panel on the right to control your weapon


Utah Distributed Systems Meetup / January 18th, 2018 / Braydon Fuller / cc-by-nd
From natural disasters, software exploits and social engineering attacks
HMAC and signatures
AES-256-CTR and AES-256-GCM with high entropy keys
Erasure encoding with Reed-Solomon and geographically diverse replication
Upcoming work:
#define GF_SIZE ((1 << GF_BITS) - 1)
/*
* Primitive polynomials - see Lin & Costello, Appendix A,
* and Lee & Messerschmitt, p. 453.
*/
static char *allPp[] = { /* GF_BITS polynomial */
NULL, /* 0 no code */
NULL, /* 1 no code */
"111", /* 2 1+x+x^2 */
"1101", /* 3 1+x+x^3 */
"11001", /* 4 1+x+x^4 */
"101001", /* 5 1+x^2+x^5 */
"1100001", /* 6 1+x+x^6 */
"10010001", /* 7 1 + x^3 + x^7 */
"101110001", /* 8 1+x^2+x^3+x^4+x^8 */
"1000100001", /* 9 1+x^4+x^9 */
"10010000001", /* 10 1+x^3+x^10 */
"101000000001", /* 11 1+x^2+x^11 */
"1100101000001", /* 12 1+x+x^4+x^6+x^12 */
"11011000000001", /* 13 1+x+x^3+x^4+x^13 */
"110000100010001", /* 14 1+x+x^6+x^10+x^14 */
"1100000000000001", /* 15 1+x+x^15 */
"11010000000010001" /* 16 1+x+x^3+x^12+x^16 */
};
/*
* To speed up computations, we have tables for logarithm, exponent
* and inverse of a number. If GF_BITS <= 8, we use a table for
* multiplication as well (it takes 64K, no big deal even on a PDA,
* especially because it can be pre-initialized an put into a ROM!),
* otherwhise we use a table of logarithms.
* In any case the macro gf_mul(x,y) takes care of multiplications.
*/
static gf gf_exp[2*GF_SIZE]; /* index->poly form conversion table */
static int gf_log[GF_SIZE + 1]; /* Poly->index form conversion table */
static gf inverse[GF_SIZE+1]; /* inverse of field elem. */
Responsible for private key management, encryption, and erasure encoding to the network
Responsible for deciding where to put data on the network, storing pointers and meta data of the sharded data, coordinating replication and paying farmers for services
Responsible for storing data for the network, establishes data contracts with a bridge
const Storj = require('storj');
const storj = new Storj.Environment({
bridgeUrl: 'https://localhost:6382',
bridgeUser<EMAIL_ADDRESS>bridgePass: 'password',
encryptionKey: 'abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about',
logLevel: 0
});
const bucketId = 'd1dacd35cb1ced91192223c2';
const uploadFilePath = './5GB-test.tar.gz';
const fileName = '5GB-test.tar.gz';
storj.storeFile(bucketId, uploadFilePath, {
filename: fileName,
progressCallback: function(progress, uploadedBytes, totalBytes) {
//...
},
finishedCallback: function(err, fileId) {
//...
}
});
const downloadFilePath = './5GB-test-download.tar.gz';
storj.resolveFile(bucketId, fileId, downloadFilePath, {
progressCallback: function(progress, downloadedBytes, totalBytes) {
//...
},
finishedCallback: function(err) {
//...
}
});
It's a probabilistic publish-subscribe system for social networks, the whitepaper was written in 2008 (http://www.cs.toronto.edu/iptps2008/final/70.pdf)
We were using the publish subscribe system to broadcast contracts into the network and wait to receive storage offers based on the contract
There were many times when it would work, however the behavior was highly unpredictable with large periods of time when uploads would not work at all or break completely during stress testing
After more than a year of contemplating more advanced ways to build performance metrics for Farmers we decided to try out building a simple reputation system based on points for behavior.
Under the current design, each Renter is responsible to create their own view of reputation, there currently isn't a system in place to create consensus on reputation.
We drafted up improvement proposals to detail the implementation of a solution
More information at: https://github.com/Storj/sips
A load balancing system to send data to more reliable sections of the network
The deployment of SIP6 was successful but had a few challenges that needed to be resolved
An upcoming improvement to better track bandwidth usage and build more robust reputation metrics
Matrix for resolving conflicting reports about a shard transfer:
Here are a few upcoming challenges up next:
https://github.com/braydonf/udsm-presentation


@( util: lib.Util, user: Option[io.apibuilder.api.v0.models.User] ) @doc.main(routes.DocController.start.url, user, Some("Getting Started")) {
After logging in, Create an organization. The organization will serve as a container for all of your services.
An API Builder service represents a full REST service. Each service is fully described in a single file. By convention, we name these files 'api.json' and store them in the root of the project that defines the server implementing the service (e.g. the root directory of your source repository).
The easiest way to get started is to download an example api.json file and then edit it. This api.json file is the description of the REST API for API Builder itself.
When you are ready, click<EMAIL_ADDRESS>(located in the upper-right corner of your organization's screen) to upload your api.json file.
View the specification of api.json for detailed information on how to describe your service.
At this point, you should have some beautiful, API Builder generated documentation for your REST service. If you distribute the URL with the version number 'latest', you will always have a link to the most current version of your service.
When viewing your service, The left-hand nav bar will include a section titled "Clients." Take a look at the Ning Async Http Client 1.9 and the Ruby client, for example, to see how they look.
Each client is presented as a stand-alone single file, which should make it easy to drop directly into your project or to publish an artifact to a server for sharing.
From your organization, explore the settings to define your package name for generated clients and to mark your organization public if you want.
To access the settings when viewing your organization, click on<EMAIL_ADDRESS>in the left nav.
The apibuilder-cli present a simple command line utility named 'apibuilder' to facility the upload of new versions of your service and to download the generated code into your source tree.
Follow the API Builder project on GitHub
Find us on slack at #apicollective
Contribute! View our Todo list and open issues/feature requests. Or create api.json specifications for common services and upload them as public services for all.


Resize the window and the applet should resize accordingly. Does not work with IE678 and Opera 12.
Read reaction


import {MatCheckboxHarness} from '@angular/material/checkbox/testing';
MatCheckboxHarness
extends
ComponentHarness
Harness for interacting with a mat-checkbox in tests.
| Name | Description |
|---|---|
|
async
blur
|
|
|---|---|
|
Blurs the checkbox. |
|
| Returns | |
Promise<void>
|
Promise that resolves when the action completes. |
async
check
|
|
|---|---|
|
Puts the checkbox in a checked state by toggling it if it is currently unchecked, or doing nothing if it is already checked. Note: This attempts to check the checkbox as a user would, by clicking it. Therefore if you
are using |
|
| Returns | |
Promise<void>
|
Promise that resolves when the action completes. |
async
focus
|
|
|---|---|
|
Focuses the checkbox. |
|
| Returns | |
Promise<void>
|
Promise that resolves when the action completes. |
async
getAriaLabel
|
|
|---|---|
|
Gets the checkbox's aria-label. |
|
| Returns | |
Promise<string | null>
|
|
async
getAriaLabelledby
|
|
|---|---|
|
Gets the checkbox's aria-labelledby. |
|
| Returns | |
Promise<string | null>
|
|
async
getLabelText
|
|
|---|---|
|
Gets the checkbox's label text. |
|
| Returns | |
Promise<string>
|
|
async
getName
|
|
|---|---|
|
Gets the checkbox's name. |
|
| Returns | |
Promise<string | null>
|
|
async
getValue
|
|
|---|---|
|
Gets the checkbox's value. |
|
| Returns | |
Promise<string | null>
|
|
async
host
|
|
|---|---|
|
Gets a |
|
| Returns | |
Promise<TestElement>
|
|
async
isChecked
|
|
|---|---|
|
Whether the checkbox is checked. |
|
| Returns | |
Promise<boolean>
|
|
async
isDisabled
|
|
|---|---|
|
Whether the checkbox is disabled. |
|
| Returns | |
Promise<boolean>
|
|
async
isFocused
|
|
|---|---|
|
Whether the checkbox is focused. |
|
| Returns | |
Promise<boolean>
|
|
async
isIndeterminate
|
|
|---|---|
|
Whether the checkbox is in an indeterminate state. |
|
| Returns | |
Promise<boolean>
|
|
async
isRequired
|
|
|---|---|
|
Whether the checkbox is required. |
|
| Returns | |
Promise<boolean>
|
|
async
isValid
|
|
|---|---|
|
Whether the checkbox is valid. |
|
| Returns | |
Promise<boolean>
|
|
async
toggle
|
|
|---|---|
|
Toggles the checked state of the checkbox. Note: This attempts to toggle the checkbox as a user would, by clicking it. Therefore if you
are using |
|
| Returns | |
Promise<void>
|
Promise that resolves when the action completes. |
async
uncheck
|
|
|---|---|
|
Puts the checkbox in an unchecked state by toggling it if it is currently checked, or doing nothing if it is already unchecked. Note: This attempts to uncheck the checkbox as a user would, by clicking it. Therefore if you
are using |
|
| Returns | |
Promise<void>
|
Promise that resolves when the action completes. |
static
with
|
|
|---|---|
|
Gets a |
|
| Parameters | |
|
options CheckboxHarnessFilters = {}
|
Options for narrowing the search:
|
| Returns | |
HarnessPredicate<T>
|
a |
CheckboxHarnessFilters
A set of criteria that can be used to filter a list of MatCheckboxHarness
instances.
| Name | Description |
|---|---|
|
Only find instances with the given checked value. |
|
Only find instances which match the given disabled state. |
|
Only find instances whose label matches the given value. |
|
Only find instances whose name attribute is the given value. |


Make a visit to Golconda Fort, witness the Qutb Shahi Tombs, indulge in the royalty of Chowmahalla Palace,
wander around Charminar – the landmark of Hyderabad, make a roundabout of Hussain Sagar Lake,
exploring tank bund, sanjeevaiah park, necklace road, Jalavihar, NTR Gardens, Lumbini Park, take a
boat ride in the waters of Hussain Sagar Lake with a roundabout of lord Buddha in the middle of the lake,
explore the rendezvous of Durgam Cheruvu – the secret lake, immerse in the enthralling water parks of the city,
visit Birla temple, rediscover the antiques of Salarjung Museum, engage with the animal world of the Nehru
Zoological Park, walk-in to the KBR National Park and KVBR Botanical Garden, move out to the city outskirts
and visit Ramoji Film City for a fun – filled day, visit Sanghi temple, engage with the flora and fauna of
the national parks of Mahaveer Harina Vanasthali and Mrugavani, make a wish visiting lord Balaji at Chilukuru,
indulge in adventure activities through any of the rock climbing clubs in and around Hyderabad like Rock
Climbing School at Bhongir Fort that engages you with an exciting and thrilling experience with boulders
and natural settings offering spectacular activities. Connect to other parts of Telangana. Embrace the
heritage monuments, divine temples, cultural fragrances, lush green forests, rivers, wildlife,
waterfalls, lakes and the rural life of Telangana.


Before Change
def create_policy(self, featurizer):
// use standard featurizer from EmbeddingPolicy,
// since it is using FullDialogueTrackerFeaturizer
p = EmbeddingPolicy()
return p
@pytest.fixture(scope="module")
def trained_policy(self, featurizer):
After Change
def create_policy(self, featurizer):
// use standard featurizer from EmbeddingPolicy,
// since it is using FullDialogueTrackerFeaturizer
p = EmbeddingPolicy(attn_before_rnn=False, attn_after_rnn=False)
return p
class TestEmbeddingPolicyAttentionBeforeRNN(PolicyTestCollection):


Introduction¶
This tutorial shows how to use VPP use iperf3 and TRex to get some basic performance numbers from a few basic configurations. Four examples are shown. In the first two examples, the iperf3 tool is used to generate traffic, and in the last two examples the Cisco’s TRex Realistic Traffic Generator is used. For comparison purposes, the first example shows packet forwarding using ordinary kernel IP forwarding, and the second example shows packet forwarding using VPP.
Three Intel Xeon processor platform systems are used to connect to the VPP host to pass traffic using iperf3 and Cisco’s TRex.
Intel 40 Gigabit Ethernet (GbE) network interface cards (NICs) are used to connect the hosts.
Using Kernel Packet Forwarding with Iperf3¶
In this test, 40 GbE Intel Ethernet Network Adapters are used to connect the three systems. Figure 1 illustrates this configuration.
Figure 1: VPP runs on a host that connects to two other systems via 40 GbE NICs.
For comparison purposes, in the first example, we configure kernel forwarding in csp2s22c03 and use the iperf3 tool to measure network bandwidth between csp2s22c03 and net2s22c05.
In the second example, we start the VPP engine in csp2s22c03 instead of using kernel forwarding. On csp2s22c03, we configure the system to have the addresses <IP_ADDRESS>/24 and <IP_ADDRESS>/24 on the two 40-GbE NICs. To find all network interfaces available on the system, use the lshw Linux command to list all network interfaces and the corresponding slots [0000:xx:yy.z].
In this example, the 40-GbE interfaces are ens802f0 and ens802f1.
csp2s22c03$ sudo lshw -class network -businfo
Bus info Device Class Description
========================================================
pci@0000:03:00.0 enp3s0f0 network Ethernet Controller 10-Gig
pci@0000:03:00.1 enp3s0f1 network Ethernet Controller 10-Gig
pci@0000:82:00.0 ens802f0 network Ethernet Controller XL710
pci@0000:82:00.1 ens802f1 network Ethernet Controller XL710
pci@0000:82:00.0 ens802f0d1 network Ethernet interface
pci@0000:82:00.1 ens802f1d1 network Ethernet interface
Configure the system csp2s22c03 to have <IP_ADDRESS> and <IP_ADDRESS> on the two 40-GbE NICs ens802f0 and ens802f1, respectively.
csp2s22c03$ sudo ip addr add <IP_ADDRESS>/24 dev ens802f0
csp2s22c03$ sudo ip link set dev ens802f0 up
csp2s22c03$ sudo ip addr add <IP_ADDRESS>/24 dev ens802f1
csp2s22c03$ sudo ip link set dev ens802f1 up
List the route table:
csp2s22c03$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default jf111-ldr1a-530 <IP_ADDRESS> UG 0 0 0 enp3s0f1
default <IP_ADDRESS> <IP_ADDRESS> UG 100 0 0 enp3s0f0
<IP_ADDRESS> * <IP_ADDRESS> U 0 0 0 ens802f0
<IP_ADDRESS> * <IP_ADDRESS> U 0 0 0 ens802f1
<IP_ADDRESS> * <IP_ADDRESS> U 0 0 0 enp3s0f1
link-local * <IP_ADDRESS> U 1000 0 0 enp3s0f1
<IP_ADDRESS> * <IP_ADDRESS> U 100 0 0 enp3s0f0
csp2s22c03$ ip route
default via <IP_ADDRESS> dev enp3s0f1
default via <IP_ADDRESS> dev enp3s0f0 proto static metric 100
<IP_ADDRESS>/24 dev ens802f0 proto kernel scope link src <IP_ADDRESS>
<IP_ADDRESS>/24 dev ens802f1 proto kernel scope link src <IP_ADDRESS>
<IP_ADDRESS>/24 dev enp3s0f1 proto kernel scope link src <IP_ADDRESS>
<IP_ADDRESS>/16 dev enp3s0f1 scope link metric 1000
<IP_ADDRESS>/24 dev enp3s0f0 proto kernel scope link src <IP_ADDRESS> metric 100
On csp2s22c04, we configure the system to have the address <IP_ADDRESS> and use the interface ens802 to route IP packets <IP_ADDRESS>/24. Use the lshw Linux command to list all network interfaces and the corresponding slots [0000:xx:yy.z].
For example, the interface ens802d1 (ens802) is connected to slot [82:00.0]:
csp2s22c04$ sudo lshw -class network -businfo
Bus info Device Class Description
=====================================================
pci@0000:03:00.0 enp3s0f0 network Ethernet Controller 10-Gigabit X540-AT2
pci@0000:03:00.1 enp3s0f1 network Ethernet Controller 10-Gigabit X540-AT2
pci@0000:82:00.0 ens802d1 network Ethernet Controller XL710 for 40GbE QSFP+
pci@0000:82:00.0 ens802 network Ethernet interface
For kernel forwarding, set <IP_ADDRESS> to the interface ens802, and add a static route for IP packet <IP_ADDRESS>/24:
csp2s22c04$ sudo ip addr add <IP_ADDRESS>/24 dev ens802
csp2s22c04$ sudo ip link set dev ens802 up
csp2s22c04$ sudo ip route add <IP_ADDRESS>/24 via <IP_ADDRESS>
csp2s22c04$ ifconfig
enp3s0f0 Link encap:Ethernet HWaddr a4:bf:01:00:92:73
inet addr:<IP_ADDRESS> Bcast:<IP_ADDRESS> Mask:<IP_ADDRESS>
inet6 addr: fe80::a6bf:1ff:fe00:9273/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3411 errors:0 dropped:0 overruns:0 frame:0
TX packets:1179 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:262230 (262.2 KB) TX bytes:139975 (139.9 KB)
ens802 Link encap:Ethernet HWaddr 68:05:ca:2e:76:e0
inet addr:<IP_ADDRESS> Bcast:<IP_ADDRESS> Mask:<IP_ADDRESS>
inet6 addr: fe80::6a05:caff:fe2e:76e0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:40 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:5480 (5.4 KB)
lo Link encap:Local Loopback
inet addr:<IP_ADDRESS> Mask:<IP_ADDRESS>
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:31320 errors:0 dropped:0 overruns:0 frame:0
TX packets:31320 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:40301788 (40.3 MB) TX bytes:40301788 (40.3 MB)
After setting the route, we can ping from csp2s22c03 to csp2s22c04, and vice versa:
csp2s22c03$ ping <IP_ADDRESS> -c 3
PING <IP_ADDRESS> (<IP_ADDRESS>) 56(84) bytes of data.
64 bytes from <IP_ADDRESS>: icmp_seq=1 ttl=64 time=0.122 ms
64 bytes from <IP_ADDRESS>: icmp_seq=2 ttl=64 time=0.109 ms
64 bytes from <IP_ADDRESS>: icmp_seq=3 ttl=64 time=0.120 ms
csp2s22c04$ ping <IP_ADDRESS> -c 3
PING <IP_ADDRESS> (<IP_ADDRESS>) 56(84) bytes of data.
64 bytes from <IP_ADDRESS>: icmp_seq=1 ttl=64 time=0.158 ms
64 bytes from <IP_ADDRESS>: icmp_seq=2 ttl=64 time=0.096 ms
64 bytes from <IP_ADDRESS>: icmp_seq=3 ttl=64 time=0.102 ms
Similarly, on net2s22c05, we configure the system to have the address <IP_ADDRESS> and use the interface ens803f0 to route IP packets <IP_ADDRESS>/24. Use the lshw Linux command to list all network interfaces and the corresponding slots [0000:xx:yy.z]. For example, the interface ens803f0 is connected to slot [87:00.0]:
NET2S22C05$ sudo lshw -class network -businfo
Bus info Device Class Description
========================================================
pci@0000:03:00.0 enp3s0f0 network Ethernet Controller 10-Gigabit X540-AT2
pci@0000:03:00.1 enp3s0f1 network Ethernet Controller 10-Gigabit X540-AT2
pci@0000:81:00.0 ens787f0 network 82599 10 Gigabit TN Network Connection
pci@0000:81:00.1 ens787f1 network 82599 10 Gigabit TN Network Connection
pci@0000:87:00.0 ens803f0 network Ethernet Controller XL710 for 40GbE QSFP+
pci@0000:87:00.1 ens803f1 network Ethernet Controller XL710 for 40GbE QSFP+
For kernel forwarding, set <IP_ADDRESS> to the interface ens803f0, and add a static route for IP packet <IP_ADDRESS>/24:
NET2S22C05$ sudo ip addr add <IP_ADDRESS>/24 dev ens803f0
NET2S22C05$ sudo ip link set dev ens803f0 up
NET2S22C05$ sudo ip route add <IP_ADDRESS>/24 via <IP_ADDRESS>
After setting the route, you can ping from csp2s22c03 to net2s22c05, and vice versa. However, in order to ping between net2s22c05 and csp2s22c04, kernel IP forwarding in csp2s22c03 has to be enabled:
csp2s22c03$ sysctl net.ipv4.ip_forward
net.ipv4.ip_forward = 0
csp2s22c03$ echo 1 | sudo tee /proc/sys/net/ipv4/ip_forward
csp2s22c03$ sysctl net.ipv4.ip_forward
net.ipv4.ip_forward = 1
If successful, verify that now you can ping between net2s22c05 and csp2s22c04:
NET2S22C05$ ping <IP_ADDRESS> -c 3
PING <IP_ADDRESS> (<IP_ADDRESS>) 56(84) bytes of data.
64 bytes from <IP_ADDRESS>: icmp_seq=1 ttl=63 time=0.239 ms
64 bytes from <IP_ADDRESS>: icmp_seq=2 ttl=63 time=0.224 ms
64 bytes from <IP_ADDRESS>: icmp_seq=3 ttl=63 time=0.230 ms
We use the iperf3 utility to measure network bandwidth between hosts. In this test, we download the iperf3 utility tool on both net2s22c05 and csp2s22c04.


Meet our Team
Teammate 1
Teammate 1 is the leader of all the teammates and is the founder of Asterisk Services. Teammate 1 is also the one incharge of app control and browser extensions since they are the one who created the programs for the customers.
Teammate 2
Teammate 2 is the second in command right after Teammate 1. Teammmate 2 is the one who has learned the service just as well as Teammate 1 and is most likely the one to take after once Teammate 1 decides to move away from the project.
Teammate 3
Teammate 3 is the teammate who helps provide maintnence to the app and services while also making sure everything is running properly.
Teammate 4
Teammate 4 is responsible for getting Asterisk Services known to the world and is also responsible for finances related to the service.


JUMP TOMORROW
Reviewed by Harvey Karten FilmFour Director: Joel Hopkins Writer: Joel Hopkins Cast: Tunde Abebimpe, Hippolyte Giradot, Natalia Verbeke, James Wilby, Patricia Mauceri, Isiah Whitlock Jr., Kaili Vernoff, Gene Ruffini, Abiola Wendy Abrams
"Jump Tomorrow" is a curiously unfunny romantic comedy, with sparks generated only by the relationship between two heterosexual men who team up on a buddy trip that takes them on the road to Niagara Falls and vicinity. We can only guess that the movie was featured in the recent Sundance Festival because of its politically correct mixture of cultures and races, as the two men and two women are Nigerian, French, Spanish and British respectively, all having lived at least part of their lives in the United States. The film is unlike recent British drug-and-crime imports like "Trainspotting," "Sexy Beast," "Lock, Stock and Two Smoking Barrels" but considering its indie classification it is virtually bereft of style or signature--more like a romantic sitcom you're likely to see on TV any weeknight at about 7.
In his feature film debut, writer-director Joel Hopkins may feel some pride in affirming both the casualness of intercultural connections and a liberal-minded putdown of arranged unions, but both concepts are old hat by now, and in any case we're way ahead of him on the question of who will wind up with whom in this predictable little yarn.
Hopkins introduces us to Nigerian-American George (Tunde Adebimpe) who contrary to the now-tattered stereotype is as uptight as any old-money Brit could be. Asked by several people, including a jeweler, to "smile, you're getting married," George can barely squeeze out a grin. He puckers his lips, rolls his eyes right and left, and conveys an expression that could win him quite a few hands at poker. When a love-obsessed Frenchman, Gerard (Hippolyte Girardot), runs into him at the airport where George had gone to meet his intended but is one day late, the two strike up a conversation about the nature of love and find themselves promptly together in a rental car where Gerard agrees to give George a lift to Niagara Falls, the site of his forthcoming marriage. Coincidentally, George has met the talkative Spaniard Alicia (Natalia Verbeke), who is on her way to the same area with her English boy friend Nathan (James Wilby). No sooner does Alicia call Geroge "Jorge" then George is smitten and, while on a pit stop heading to Niagara he buys a tape that purports to teach one Spanish.
How George and Alicia ever got cozy with each other is anybody's guess, but director Joel Hopkins seems to be clueless on this matter, especially since--as we later learn--George's fiance is a strikingly attractive Nigerian immigrant, Sophie (Abiola Wendy Abrams) while Alicia is a plain-featured, motormouthed bore.
Nonetheless the performers try their best with a lame script, with Tunde Adebimpe successfully maintaining his deadpan features (not too difficult considering the lack of laughs in the script), Hippolyte Girardot doing OK as a second-rate Daniel Auteuil, and James Wilby projecting embarrassment at not being in his usual Merchant-Ivory venue. Poor Adebimpe has to take his share of pratfalls, dropping to the floor not once, not twice but three times while riding shotgun in the Citroen and bumping his head into anything that gets in the way of his 6-feet + frame. Unfortunately he is neither Chevy Chase nor Gerald Ford.
Not Rated. Running time: 97 minutes. (C)2001, Harvey Karten<EMAIL_ADDRESS>The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
Broken URLs inthe reviews are the responsibility of the author.
The formatting of the review is likely to differ from the original due
to ASCII to HTML conversion.
Related links: index of all rec.arts.movies.reviews reviews


出版商：CENGAGE Learning
语言：英语
本书pdf是 文字版，彩图版 ，书签良好。
The Nature of Chemistry
Atoms and Elements
Chemical Compounds
Quantities of Reactants and Products
Chemical Reactions
Energy and Chemical Reactions
Electron Configurations and the Periodic Table
Covalent Bonding
Molecular Structures
Gases and the Atmosphere
Liquids, Solids, and Materials
Fuels, Organic Chemicals, and Polymers
Chemical Kinetics: Rates of Reactions
Chemical Equilibrium
The Chemistry of Solutes and Solutions
Acids and Bases
Additional Aqueous Equilibria
Thermodynamics: Directionality of Chemical Reactions
Electrochemistry and Its Applications
Nuclear Chemistry
The Chemistry of the Main Group Elements
Chemistry of Selected Transition Elements and Coordination Compounds


--- layout: layouts/gallery/parent.njk title: Trip to Israel, 2003/2004 date: 2004-01-01T00:00:00.000Z slug: gallery/trip-to-israel-2003-2004 tags: toplevelgallery ---
You can browse through the various stages of the israel trip using the links below.
Just for fun: Whose feet?


A flexible and beautiful Select Input control for ReactJS with multiselect, autocomplete and ajax support.


{% extends "content_template.html" %} {% from "components/table.html" import mapping_table, row, text_field %} {% block per_page_title %} {{ _('Message status') }} {% endblock %} {% block content_column_content %}
{{ _('Notification’s real-time dashboard lets you check when your message was delivered. You can also check the status of your messages') }}
{{ _('For') }} {{ _('security') }}, {{ _('this information is only available for 7 days after a message has been sent. You can download a report, including a list of sent messages, for your own records.') }}
{{ _('Notification has the following types of message status (API message status may be different and is found in') }} {{ _('technical documentation') }}):


In this lesson you will learn how to make a Github account.
Go to GitHub.com and you will most likely see this,
Make an account and make sure to verify everything then move on to step 2: Create a Repository
Take this link to the second lesson.


For all inquiries and bookings please contact our main line at<PHONE_NUMBER> or by email at<EMAIL_ADDRESS>Home | Accommodations | Activities | Travel Arrangements | Gallery


[gecode-users] domain constraint
Guido Tack
tack at gecode.org
Thu Nov 11 18:36:29 CET 2010
frank lemoine wrote:
> i'm sorry Guido, i think you've not undrestand my problem. i want to reproduce this:
>
> "" IntVarArray x(*this,200,0,199);
> Support::RandomGenerator rnd;
> IntArgs a;
> for (int i=10; i--;)
> a << rnd(200);
> dom(*this, x, IntSet(a));
> std::cout << "t = " << t << std::endl; ""
>
> without using the the domain constraint dom because when i run this code in a big "for loop" peak memory reach 2 GO.
What kind of for loop? I'm trying to reproduce the problem, but the above code works fine. You have to be clearer about what exactly you are doing. Please come up with a simple piece of code that exhibits the problem, not some pseudo code that leaves out the details. Obviously, if you run the above 1000 times, you allocate 200000 variables and that takes a lot of memory, but that's not what you said in the original message.
Calling dom (as opposed to constraining the domains directly) is definitely not the problem here, it does not allocate any memory except for the domain itself.
Cheers,
Guido
--
Guido Tack, http://people.cs.kuleuven.be/~guido.tack/
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I'm seeking input on a new openark kit utility I've started to implement.
The tool, oak-hook-general-log, will hook up to a MySQL (>= 5.1) server, and stream the general log into standard output. It looks like this:
bash$ python src/oak/oak-hook-general-log.py --socket=/tmp/mysql.sock --user=root 2010-03-21 10:18:42 root[root] @ localhost [] 79 1 Query SELECT COUNT(*) FROM City 2010-03-21 10:18:48 root[root] @ localhost [] 79 1 Query DELETE FROM City WHERE id=1000 2010-03-21 10:18:54 root[root] @ localhost [] 79 1 Query SHOW PROCESSLIST 2010-03-21 10:19:06 root[root] @ localhost [] 79 1 Quit 2010-03-21 10:19:07 root[root] @ localhost [] 93 1 Connect root@localhost on 2010-03-21 10:19:07 root[root] @ localhost [] 93 1 Query select @@version_comment limit 1 2010-03-21 10:22:33 root[root] @ localhost [] 93 1 Query SELECT City.Name, Country.Name FROM Country JOIN City ON Country.Capit 2010-03-21 10:22:58 root[root] @ localhost [] 93 1 Quit
Since output is written to stdout, one can further:
bash$ python src/oak/oak-hook-general-log.py --socket=/tmp/mysql.sock --user=root | grep Connect bash$ python src/oak/oak-hook-general-log.py --socket=/tmp/mysql.sock --user=root | grep webuser@webhost
What the tool does is to enable table logs, and periodically rotate the mysql.general_log table, read and dump its content.
The tool:
- Stores and restores the original log state (general log enabled/disabled, log output).
- Disables printing of its own queries to the general log.
- Automatically times out (timeout configurable) so as not to enter a situation where the general log is forgotten to be turned on.
- Can discard pre-existing data on the mysql.general_log table.
- Will cleanup the mysql.slow_log table, if it wasn't originally used (turning on table logs applies to both general log and slow log).
What would you have the tool do further? Should it provide filtering, or should we just use grep/sed/awk for that? Any internal aggregation of data?
I would love to hear your thoughts. Meanwhile, view or grab the python script file.
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Dragble.js
Examples
No configuration
If providing no configuration, the elements will be freely draggable.
Contain into element
When defining a containment, the draggable object will be restricted to move within the element's boundaries.
H
Restriced to horizontal movement
It is possible to restrict movement to horizontal or vertical only.


There are two kinds of animation:
We’ll use a free candle animation for our first example. There are only three frames there so it’s easy to load them like this:
Vector<SpriteFrame*> animFrames;
animFrames.reserve(3);
animFrames.pushBack(SpriteFrame::create("candle/SC300-1.png", Rect(0,0,64,64)));
animFrames.pushBack(SpriteFrame::create("candle/SC300-2.png", Rect(0,0,64,64)));
animFrames.pushBack(SpriteFrame::create("candle/SC300-3.png", Rect(0,0,64,64)));
// create the animation out of the frames
Animation* animation = Animation::createWithSpriteFrames(animFrames, 0.4f);
Animate* animate = Animate::create(animation);
// run it and repeat it forever
Sprite* candleSprite = Sprite::create();
candleSprite->runAction(RepeatForever::create(animate));
Here we use Rect(0,0,64,64)
because the frames are 64х64 pixels size.
The problem is the direct file loading is a bad practice (yet we still used it in our examples because it’s easy and intuitive). That’s good enough for small educational examples, but real programs should use spritesheets.
Here I should recommend you to read this long but very important article about animation. Briefly, there is a SpriteFrameCache class and a singleton instance of this class can load the sprite sheet files. A sprite sheet is actually a pair of files: one single *.png that combines multiple images and one *.plist which is a XML describing those images.
There are various programs that can be used to create sprite sheets:
For our second example we can take four images of a creature in the hood, create a plist file and load it into program it like this:
SpriteFrameCache* sfc = SpriteFrameCache::getInstance();
const string violetMonsterFN = "littleCandleMonster/littleCandleMonster_violet.plist";
sfc->addSpriteFramesWithFile(violetMonsterFN);
Vector<SpriteFrame*> animFrames;
Animation *monsterAnimation = Animation::create();
char tmps[256];
for (int i = 1; i<=4; i++) {
sprintf(tmps, "lm-1-%i.png", i);
SpriteFrame * sf = sfc->getSpriteFrameByName(tmps);
monsterAnimation->addSpriteFrame(sf);
}
monsterAnimation->setDelayPerUnit(0.1);
Animate* animate = Animate::create(monsterAnimation);
You can get rid of listing file names in the code by using the addAnimationsWithFile
method of the AnimationCache instance. Loading will look like this:
const string plistFilename = "skeleton/skeleton_images.plist";
SpriteFrameCache::getInstance()->addSpriteFramesWithFile(plistFilename);
const string animationsPlistFN = "skeleton/skeleton_animations.plist";
AnimationCache::getInstance()->addAnimationsWithFile(animationsPlistFN);
and the usage of animation like this:
Animation* animation = AnimationCache::getInstance()->getAnimation(idleAnimationName);
Animate* animate = Animate::create(animation);
skeletonSprite->runAction(animate);
A small problem of this approach is that it requires some additional plist file. This file is different from those created by TexturePacker. There is no software to create this kind of files, so you’ll have to write it manually. However, that’s an usual XML, so it’s easy to understand and edit. You can find the file for this example here.
Anyway, you’ll create an Animate instance at the end and this instance can be used as any other Action. For example here the violet creature moves like the green UFO from our previous examples:


Hello {{title}} !
I have
friends. They are:
[{{$index + 1}}] {{friend.name}} who is {{friend.age}} years old.
No results found...


CatPhotoApp
View more
cat photos
.
Things cats love:
Milk
Cheese
String
Top 3 things cats hate:
Dogs
Water
Birds
Indoor
Outdoor
Loving
Lazy
Energetic
Submit


This article will show you how to add a Python + Pandas script to your NodeJS web app, and then deploy the app to Heroku. This could be a great starting point for developing rich, fast and asynchronous web applications that are also equipped with the data capabilites brought by Python and it's libraries.
For one of my assignments in a Data Visualization course, I utilized a Python script on top of a NodeJS server to do some real-time data filtering and reshaping on a fairly large dataset, which I then visualized using D3. Before you ask, yes, I considered MongoDB however I dropped the idea as I didn’t really think I could expect my instructor to go through the headache of installing Mongo and creating a new database in her machine just to grade my one assignment. On the other hand, chances were she already had Python installed in her machine so using Python + Pandas seemed a better option.
Anyways, fast forward 2 days of intensive coding and my assignment is submitted. I now want to upload it to the Interwebs for the world to see. Heroku has a great free service and good cli tools, as well as integration with Git. My pain-point, however, Heroku by default detects either a NodeJS app or a Python (Flask/Django) app, but not a combination of the two.
Of course, there are prerequisites. Here is what you need:
First thing you do is make a new NodeJS project. Open your terminal, go to your directory of choice and type the following commands
$ mkdir projname
$ cd projname
$ npm init
After following the default (or not) configurations from the following prompts, you can install Express
$ npm install --save express
Create a new file here called index.js where we can make a standard Express server:
// index.js
const express = require('express');
const app = express();
const port = 3500;
const path = require('path');
app.get('/', (req, res) => {
res.send("There is more to this server than meets the eye!");
});
app.listen(port, () => console.log(`Port ${port} is now occupied by...me!`));
To make sure it’s working, run the server by typing in the terminal
$ node index.js
Then open a browser and navigate to localhost:3500, where you should see the message “There is more to this server than meets the eye!”.We’ll work with some small, simple data for now. Create a file called data.csv in the same folder as index.js and paste the following in there.
"","tconst","startYear","originalTitle","averageRating","numVotes","profit","moviescore","genres"
"1","tt0000009",1894-04-22,"Miss Jerry",5.6,76,NA,9.22605007573664,"Romance"
"2","tt0000147",1897-04-22,"The Corbett-Fitzsimmons Fight",5.2,290,NA,17.3666346768739,"Documentary"
"3","tt0000147",1897-04-22,"The Corbett-Fitzsimmons Fight",5.2,290,NA,17.3666346768739,"News"
"4","tt0000147",1897-04-22,"The Corbett-Fitzsimmons Fight",5.2,290,NA,17.3666346768739,"Sport"
"5","tt0000335",1900-04-22,"Soldiers of the Cross",6.3,39,NA,7.00999286732875,"Biography"
"6","tt0000335",1900-04-22,"Soldiers of the Cross",6.3,39,NA,7.00999286732875,"Drama"
"7","tt0000574",1906-04-22,"The Story of the Kelly Gang",6.2,504,0,24.9991999871996,"Biography"
"8","tt0000574",1906-04-22,"The Story of the Kelly Gang",6.2,504,0,24.9991999871996,"Crime"
"9","tt0000574",1906-04-22,"The Story of the Kelly Gang",6.2,504,0,24.9991999871996,"Drama"
"10","tt0000615",1907-04-22,"Robbery Under Arms",4.8,14,NA,3.66606055596467,"Drama"
"11","tt0000630",1908-04-22,"Amleto",2.9,11,NA,2.52586618806302,"Drama"
"12","tt0000675",1908-04-22,"Don Quijote",4.3,10,NA,2.93257565972304,"Drama"
"13","tt0000676",1908-04-22,"Don Álvaro o la fuerza del sino",3.8,8,NA,2.46576560118759,"Drama"
"14","tt0000679",1908-04-22,"The Fairylogue and Radio-Plays",4.8,33,NA,5.62849891178812,"Adventure"
"15","tt0000679",1908-04-22,"The Fairylogue and Radio-Plays",4.8,33,NA,5.62849891178812,"Fantasy"
# script.py
import pandas as pd
import sys
import json
# Read data
data = pd.read_csv('data.csv')
# Capture first process argument: genre (we’ll provide this later from the NodeJS App)
genre = sys.argv[1]
# Find sum of the numbers of votes of all movies that are of the requested genre
retVal = data[data['genres'] == genre]['numVotes'].sum()
# Print value as json. This is important to retrieve it from the Express app.
print(json.dumps({'value': str(retVal)}))
In order to call our Python script, we will use the npm package child_process. From the root of the project directory, run from the command line:
$ npm install –-save child_process
This package allows us to “spawn” new processes from NodeJS, and we will be spawning a Python process. The following code does just that; it can be added before the app.listen()
snippet.
// for now, hardcoding the genre as 'Drama'
var genre = 'Drama';
// create a child_process object called spawn, then use it to spawn a new process
var spawn = require("child_process").spawn;
// the first argument is the command line argument, and the second is a list of all process args.
var process = spawn('python', ["./script.py", genre]);
The spawn()
function takes two parameters: the command and it’s arguments. In our case, our command is python
and the arguments are the script, and the movie genre Drama.
In essence, this function tells NodeJS to execute the following command on the system
: $ python ./script.py Drama
Check out the Python script again: more specifically the last line. After performing whatever complex operations we wish to perform, we are printing out a JSON object. This is important as the contents of this print()
are what NodeJS will receive as the return value from the Python script.
Let’s
spawn()
code within the express request handler. Our final server.js code looks as below:
// index.js
const express = require('express')
const app = express()
const port = 3500;
// for now, hardcoding the genre as 'Drama'
var genre = 'Drama';
// create a child_process object called spawning
var spawn = require("child_process").spawn;
app.get('/', (req, res) => {
// Spawn new process using "python script.py {genre}"
var process = spawn('python', ["./script.py", genre]);
// the print() is our stdout. We capture the JSON as an argument called "data" in our callback function
process.stdout.on("data", function(data){
// print out the data to our console to check
console.log(data.toString());
// send the data as JSON to the calling browser
res.send(JSON.parse(data));
});
});
app.listen(port, () => console.log(`Port ${port} is now occupied by...me!`));
Let's quickly test on our local server to make sure the code works. In the terminal, just like before, run $ node index.js
, and navigate to localhost:3500. There, the following structure should be seen:
{
value: "586"
}
586 is the value our python script computed, and then created a JSON object out of, sending it back to the NodeJS server.
Great! Our NodeJS + Python web app works fine locally! Now we must push it to the cloud.
The first thing we must do is to make sure Heroku is aware of what Python version to use, and what Python libraries will be needed. The Python version is communicated using the runtime.txt file and the libraries to install via pip are in the requirements.txt file. Hence, in the root folder, make the two files and populate them like so:
runtime.txt: python-3.7.3
requirements.txt:
pandas==0.23.4
Any other packages that you might use in your Python script must be mentioned in the requirements.txt file. This is because Heroku executes the command pip install -r requirements.txt
to install the dependecies required by the project
This should take care of the Python environment. The problem, now, is that when we push to Heroku, Heroku will see the requirements.txt file and the script.py file and assume the entire web application is Python app (running Django or Flask). It, however is a NodeJS app, and therefore we must explicitly define the starting script. This can be done in a file called Profile (no extension). So in the same folder, create a new file called Procfile with the following command:
Procfile: web: node index.js
Procfile is the file containing the particular commands to be executed by Heroku to start the app. In our case, we run our NodeJS start script that we have been executing locally as well.
Finally, create a new Heroku app from the online console. For this tutorial, the name of the new Heroku app is pywnode
It’s time to deploy! Of course, since we’re using Git to deploy, we’ll need to make a repository first
$ git init
$ git add .
$ git commit -m “The beginning of something awesome”
$ heroku git:remote -a pywnode
Of course, in your case you would type your app name in place of pywnode
with the last command.
Great! We have a repository, and with the last command there, we set the remote of our repository to be our Heroku app! Just one last thing before we push the code through.
The requirements.txt file will tell Heroku that the app is a Python app, and the Procfile informs it to start a NodeJS server. We need to explicitly tell Heroku what’s going on in this app. Through the following commands, we tell Heroku that the first buildpack to run is NodeJS and the 2nd is Python. It will then, during initialization, install bundles for both in order.
$ heroku buildpacks:add --index 1 --app pywnode heroku/nodejs
$ heroku buildpacks:add --index 2 --app pywnode heroku/python
Of course, like before, the argument --app
in your case should be your Heroku app name instead of pywnode
Now if we check using
$ heroku buildpacks --app <your-app-name>
We’ll see both webpacks have been added, ie Heroku knows this app utilizes both NodeJS and Python.
Finally, we’re all set to push the app.
$ git push heroku master
If everything went well, you should see (ideally first) a “NodeJS app detected” prompt on the console followed by the installation of all Node dependencies.
Followed by a prompt of “Python app detected” with an installation of pip packages
Congratulations! You should be done at this point! To view your app on the internet, head over to https://yourappname.herokuapp.com


|
Houzi Game Engine
|
Represents an image. More...
#include <image.hpp>
Public Types | |
| using | size_type = vec< uint, Dim > |
| Type representing the size of the image. | |
| using | offset_type = size_type |
| Type representing pixel coordinates. | |
| using | pixel_type = pixel< PF > |
| Type of the image pixels. | |
| using | pixel_collection = std::vector< pixel_type > |
| Type used to represent the collection of pixels of the image. | |
Public Member Functions | |
| image () | |
| default constructor. More... | |
| image (const size_type &size) | |
| size_type constructor. More... | |
| image (const size_type &size, const pixel_type &px) | |
| pixel constructor. More... | |
| image (const size_type &size, const span< const pixel_type > &pixels) | |
| Pixels constructor. More... | |
| image (const size_type &size, pixel_collection &&pixels) | |
| Pixels move constructor. More... | |
| template<size_t OtherDim, pixel_format OtherPF> | |
| image (const image< OtherDim, OtherPF > &other) | |
| Conversion constructor. More... | |
| const size_type & | get_size () const noexcept |
| Retrieves the size of the image. More... | |
| const pixel_collection & | get_pixels () const noexcept |
| Retrieves the pixels of the image. More... | |
| void | set_pixels (const span< const pixel_type > &pixels) |
| Sets the pixels of the image. More... | |
| const pixel_type & | get_pixel (const offset_type &coordinates) const |
| Retrieves a single pixel. More... | |
| void | set_pixel (const offset_type &coordinates, const pixel_type &value) |
| Sets the value of a single pixel. More... | |
| image | get_sub_image (const offset_type &offset, const size_type &size) |
| Retrieves a sub-image. More... | |
| void | set_sub_image (const offset_type &offset, const image &im) |
| Sets a region of the image with the given sub-image. More... | |
| void | clear (const pixel_type &px) |
| Clears the whole image with the given pixel value. More... | |
Static Public Member Functions | |
| static size_t | get_dimension_count () noexcept |
| Retrieves the number of dimensions of the image. More... | |
| static pixel_format | get_pixel_format () noexcept |
| Retrieves the format of the pixels of the image. More... | |
| static uint | get_pixel_byte_count () noexcept |
| Retrieves the amount of bytes used by a pixel of the image. More... | |
Static Public Attributes | |
| static constexpr size_t | dimension_count = Dim |
| The number of dimensions of the image. | |
| static constexpr pixel_format | format = PF |
| The pixel format. | |
| static constexpr size_t | pixel_bit_count = pixel_type::bit_count |
| The number of bits in a pixel. | |
| static constexpr size_t | pixel_byte_count = pixel_type::byte_count |
| The number of bytes in a pixel. | |
Friends | |
| template<size_t OtherDim, pixel_format OtherPF> | |
| class | image |
Represents an image.
Note: all possible class insances are already explicitly instantiated and exported in the library.
| Dim | the number of dimensions of the image (from 1 to 3). |
| hou::image< Dim, PF >::image | ( | ) |
default constructor.
Creates an image with no pixels. all of its size components are equal to 0.
| std::bad_alloc. |
| hou::image< Dim, PF >::image | ( | const size_type & | size | ) |
size_type constructor.
Creates an image with the given size. all pixel channels are initialized to 0.
| size | the size of the image. |
| std::bad_alloc. |
| hou::image< Dim, PF >::image | ( | const size_type & | size, |
| const pixel_type & | px | ||
| ) |
pixel constructor.
Creates an image with the given size, with all pixels set to the given value.
| size | the size of the image. |
| px | the value of the pixels of the image. |
| std::bad_alloc. |
| hou::image< Dim, PF >::image | ( | const size_type & | size, |
| const span< const pixel_type > & | pixels | ||
| ) |
Pixels constructor.
Creates an image with the given size and pixels. The collection contains a linear list of pixels. Pixels along the first axis must be adjacent in the collection.
| size | the size of the image. |
| pixels | the collection of pixels of the image. |
| hou::precondition_violation | if the size of pixels does not coincide the the product of all elements of size. |
| std::bad_alloc. |
| hou::image< Dim, PF >::image | ( | const size_type & | size, |
| pixel_collection && | pixels | ||
| ) |
Pixels move constructor.
Creates an image with the given size and pixels. The collection contains a linear list of pixels. Pixels along the first axis must be adjacent in the collection.
| size | the size of the image. |
| pixels | the collection of pixels of the image. |
| hou::precondition_violation | if the size of pixels does not coincide the the product of all elements of size. |
|
inline |
Conversion constructor.
Creates an image from an image with a different number of dimensions and/or format. If the pixel format is different, each pixel is converted according to the conversion rule of the pixel class. If the number of dimensions of other is lower, the generated image has size 1 on all additional dimensions. It is not possible to create an image from an image with more dimensions.
| OtherDim | the number of dimensions of the other image. |
| OtherPF | the pixel format of the other image. |
| Enable | enabling parameter. |
| other | the other image. |
| std::bad_alloc. |
| void hou::image< Dim, PF >::clear | ( | const pixel_type & | px | ) |
Clears the whole image with the given pixel value.
| px | the pixel value. |
| std::bad_alloc. |
|
staticnoexcept |
Retrieves the number of dimensions of the image.
| const pixel_type& hou::image< Dim, PF >::get_pixel | ( | const offset_type & | coordinates | ) | const |
Retrieves a single pixel.
| coordinates | the coordinates of the pixel. |
| hou::out_of_range | if the coordinates exceed the size of the image. |
|
staticnoexcept |
Retrieves the amount of bytes used by a pixel of the image.
|
staticnoexcept |
Retrieves the format of the pixels of the image.
|
noexcept |
Retrieves the pixels of the image.
|
noexcept |
Retrieves the size of the image.
| image hou::image< Dim, PF >::get_sub_image | ( | const offset_type & | offset, |
| const size_type & | size | ||
| ) |
Retrieves a sub-image.
| offset | the offset of the sub-image. |
| size | the size of the sub-image. |
| hou::out_of_range | if the sum of offset and size is greater or equal than the size of the image. |
| std::bad_alloc. |
| void hou::image< Dim, PF >::set_pixel | ( | const offset_type & | coordinates, |
| const pixel_type & | value | ||
| ) |
Sets the value of a single pixel.
| coordinates | the coordinates of the pixel. |
| value | the value of the pixel. |
| hou::out_of_range | if the coordinates exceed the size of the image. |
| void hou::image< Dim, PF >::set_pixels | ( | const span< const pixel_type > & | pixels | ) |
Sets the pixels of the image.
| pixels | the pixels. |
| hou::precondition_violation | if the size of pixels is not equal to the product of all elements of the size of the image. |
| void hou::image< Dim, PF >::set_sub_image | ( | const offset_type & | offset, |
| const image< Dim, PF > & | im | ||
| ) |
Sets a region of the image with the given sub-image.
Throws if the sum of offset and the size of the input image is greater or equal than the size of the image.
| offset | the offset of the sub-image. |
| hou::out_of_range | if the sum of offset and the size of the input image is greater or equal than the size of the image. |
| im | the sub-image to be copied. |


-
{# ======================================================================================#}
- Little Town by Soph Ashe {# ======================================================================================#}
- Get lacinia odio sem nec elit by Filex
- Donec sed odio du by Dan Doorack
- Curabitur blandit tempu by Foxes
- Urna mollis ornare vel eu leo by Chris Fox
- Faucibus dolor auctor by Lauren Taylor
- Praesent commodo cursus magn by Chris Fox
- Vestibulum id by Milian
- Blandit tempu by Amanda Conlan
- Vestibulum ullamcorpe quis malesuada augue mco rpe by Dan Doorack
- Natis ipsum ac feugiat by Hamburg
- Sec condimentum au by Amanda Conlan


OpenType features can be thought of as typographic options for the font. They can be used to enhance the legibility and appearance of text.
p {
font-kerning: normal;
font-variant-ligatures: common-ligatures contextual;
font-feature-settings: "kern", "liga", "clig", "calt";
}
font-feature-settings
to enable OpenType features.kern
, ligatures liga
, contextual ligatures clig
, and contextual alternatives calt
should always be enabled for all texts.


We've begun building a community of educators, librarians, and developers organized around increasing the utility of DH Box and DH tools in academia. We plan to add more tools and make improvements based on community input.
Questions or comments? We'd love to hear from you!
Email hello [at] dhbox [dot] org or find us on Twitter.


{% extends "common/auth_base.html" %} {% load i18n %} {% block title %} I forgot my password {% endblock %} {% block content %}
Did you forget your password? No worries! Enter your email address below, click "continue", and we'll send you instructions for resetting it.


Material Dashboard
Used Space
49/50GB
Revenue
$34,245
Fixed Issues
75
Followers
+245
Daily Sales
55%
Email Subscriptions
Last Campaign Performance
Completed Tasks
Last Campaign Performance
Used Space
49/50GB
Revenue
$34,245
Fixed Issues
75
Followers
+245
Daily Sales
55%
Email Subscriptions
Last Campaign Performance
Completed Tasks
Last Campaign Performance


Presentation and discussion leading
During the semester you will present one paper to the class. Each LECTURE will have 4-5 presenters, sign up by editing this Google Doc. I periodically grab this data from Google Docs and sync it to the course website. You can divide up the presentation responsibilities however you see fit and you will be graded as a group. You must present the paper(s) in a style where you assume everyone has read the paper, so you focus on the most important aspect of the work. You will also be responsible for clearing up any confusing aspects of the paper and for leading a discussion. Here is a rough guideline for how to lead a discussion:
- 10 minutes on core concepts. Explain what this paper is about and why it is important. Remember, we can assume everyone has already read the paper so keep it short!
- 10 minutes of related work. Discuss some other work that may be related to the papers you are presenting and tie them together to help give a historical context of the work.
- 10 minutes small group discussion. Come up with several questions to pose to the class to spark discussions. We will discuss in small groups first.
- 10 minutes class discussion. Based on the small group discussions, the class will vote on topics to discuss as an entire class.
The first paper available to students is the Short Cut paper on 1/17.
Note: you are required to do a practice talk with Sam the Wednesday before your lecture. These practice sessions take place during the discussion section and are open to the entire class.
Grading rubric
When lead a lecture, we will grade you on the following categories:
- Clarity of explanation
- Clarity of the main concept
- Smoothness and polish for the presentation
- Question and answer leading
- Additional material
- Discussion
- Practice talk
- Turn in your slides within 30 minutes after your lecture
Quiz questions from your lecture
To help presenters align their presentations with the material that's on the quiz, presenters to come up with four potential quiz questions ahead of time, and we may use one of them for the quiz on that topic.
When you lead a lecture, before your practice talk submit 2 medium difficulty questions and 2 hard questions based on the paper that you're presenting. The TA and I may pick one (or more) for the quiz.


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Measure your latency to GCP regions
| REGION | MEDIAN LATENCY |
|---|---|
| Loading... |
How does this work?
Your browser makes HTTPS requests to Google Cloud Run services deployed to each region. The median time between request and response is shown.
The global row uses a Global HTTPS Load Balancer to route requests to the nearest service.
Note: This site is intended to show relative latency to each region, and should not be used to determine the absolute lowest latency possible, or your own network speed or other network conditions. Results are not scientific.
This is not an official Google project. Source available on GitHub.


Use OsmAnd API
OsmAnd API allows you to control the installed OsmAnd app. Starting development via the API is easy and straightforward and can be embedded in any application, without licensing requirements of the target app. The only drawback is that the user should have OsmAnd installed
OsmAnd API features:
- Adding favorites and markers to the map
- Navigation between locations
- Creating audio, video and photo notes
- Starting and stopping GPX track recording
- Importing GPX tracks into OsmAnd and navigatin along them
- Many other features are already present or can be implemented by request
Create new rendering style
Creating new rendering style is possible without any change in the program. Style definitions could be difficult if you want to write it from scratch for example Nautical style or Default style (15K lines of code). It is advised to create a dependent style so you could change start changing style by small pieces. For example UniRS style contains mostly color redefinition and icon appearance.
To test rendering style you could use OsmAndMapCreator. In case you would like to use in the OsmAnd on device. You need to put the xml definition of the style into folder on sdcard ('rendering') next to other rendering styles.
All rights on the style is created belongs to the author. Though these rights could not be applied to the OsmAnd binaries and .
Customize routing engine
In some cases you might want to extend or adjust routing experience of OsmAnd, so you could add extra parameters, add extra barriers or change some penalties. Please take a look at routing.xml. OsmAnd routing is using 2 directional A* algorithm based on fastest time (= distance/(speed*priority) + penalties) . It is a pretty easy format. It is divided into 7 sections (evaluation groups):
- access (1 allow, -1 not allow)
- speed (number that presents speed in kmh)
- priority (number between 0 and 1) - a multiplier to the speed and it is still bound to maxSpeed, so minimum(speed * multiplier, maxSpeed) will be used for A*
- oneway (1, -1 or 0) - used to clarify access based on direction of the movement
- penalty_transition (penalty in seconds) - used to define penalty when user goes from high class road to low class road. For example, motorway - 10, trunk - 15, if user goes from motorway to trunk penalty will be 5 seconds (=10 - 15). This penalty will be used by A* algorithm. There is no penalty if user goes from motorway to trunk and there is no penalty if route continues from motorway to motorway.
- obstacle (penalty in seconds) - defines penalty which is to the routing time
- obstacle_time (penalty in seconds) - defines penalty which is displayed to the user but it is not considered by routing engine i.e. obstacle_time - 2 hours, obstacle - 1 minute, on the shortest route engine will find a route using 1 minute obstacle but user will see that route time is 2 hours.
In order to test routing.xml you could use OsmAndMapCreator. To test routing.xml on a device, you could just replace default routing.xml in the root OsmAnd folder on the sdcard.
Contact us for development
In case you have are not sure which case fits you the most or you would like to ask help from developers who has experience in building application integrated with OsmAnd, please don't hesitate to contact us business@osmand.net!


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Favorite Color
Red
Green
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Blue -{{favoriteColor}}
Favorite Shape:
Circle
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Square
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{% extends "layout.html" %} {% block page_title %} Confirmation page example {% endblock %} {% block content %} Your participant is in category 4 Reluctantly online They understand the general benefits of being online, they have yet to experience them personally. More information {% endblock %}
Reluctantly online
They understand the general benefits of being online, they have yet to experience them personally.


Read the Docs
30 Apr 2014I'm constantly having problems with my code or don't fully understand a concept being covered in class. After wrestling over it for an embarrassing amount of time, I will ask my instructor, Shelby, for help. Her standard response is always, "Did you read the docs?" In other words, did you try reading the "instruction manual" before trying to "assemble" your code. She's not doing this to be mean, but to teach me to be a problem solver, to step back and understand what is happening at a foundational level instead of just rigging together some code.
After looking at the Rails Guides, I noticed the option to download the guides for Kindle. After looking at a computer screen (literally) all day, the last thing I want to do is read documentation on my computer. So, I sprung for a Kindle during a recent sale. Since loading up Ruby Guides, both the Guides and the Kindle have become an awesome tool.
Readable Documentation
The Rails Guides are pretty sweet (Yes, you were right, Shelby!). They are written in a very conversational tone and not typical engineer language. Also, the documentation begins by taking you through a real world example of how to practically implement Rails. You will realize very quickly the Guides are more than just a step-by-step list of instructions. Instead, Rails Guides will lead you through errors created by each step. The Guides will explain why the error occurs, why Rails is set up that way, and what you can add to eliminate the error. So, you're not just learning the how, but the why.
The last time John spoke to our cohort about Taking Projects to Products he mentioned documentation. When developing Pressgram for iOS, John, even as a seasoned software engineer, started reading the iOS docs from the beginning. This was a huge lesson to me. He went on to explain that no one is above the docs. There's nothing fancy or cool about the docs, but they work.
Obviously, the Rails Guides are an incredible reference tool. But, if you're just starting out, I would encourage you to not go buffet-style and pick and choose from the Guides. Instead, start from the beginning to gain a firm understanding of how Rails works. Honestly, I have just about zero time to right now, but having the Kindle is allowing me to read more consistently.
Accessible Documentation
Since being at The Iron Yard, I've purchased a few reference books that have been a help to me. But, to be honest, I have to purpose to get them out and read them. They are big, heavy and not really that convenient to carry around. To take them out in a moments notice and read a few pages doesn't happen very often, which is why I'm loving the Kindle.
The book, 137 Books in One Year, is a motivating read. Kevin Hendricks explains how he read 137 books in just one year. The major takeaway is to always have a book on hand to read at a moments notice. Recapture even the smallest chunks of time to read. This could be while brushing your teeth, cooking something in the microwave, or waiting for your computer to reboot. I take Marta in because it's super close to ATV so, I do my best to recapture the time waiting for the train and riding on the train by reading.
Don't get me wrong...I'm literally getting about 5 hours of sleep a night. But, the small amounts of time I do have I try to recapture.
Kindle + Rails Guides = Awesome


When targeting Internet Explorer 11 in a Blox Material application built with Angular CLI there are two issues:
Luckily since Angular CLI 9 it has become a lot easier to configure your angular app for IE11.
However this will only work for (production) builds. The ng serve
command does not
offer a configuration options to transpile library dependencies to ES5 on demand. Since
the material-web-components library is currently only distributed in ES6 javascript,
ng serve
will not work for IE11.
For (production) builds, supporting IE11 is made super easy though, with the default differential loading that Angular CLI supports.
Angular CLI has created a file browserslist
in the root directory of your project.
Just make sure that the list of supported browsers includes IE:
...
last 2 versions
not dead
IE 11
...
Now when you run ng serve
, the generated application will contain
javascript for both es2015 and es5 browsers. The html is generated so that
browsers will only load the versions they need (and support).
Angular CLI has created a file polyfills.ts in the src directory of your project.
For classlist support on SVG, you will have to uncomment the line that imports
classlist.js
. The result will look like:
...
/** IE10 and IE11 requires the following for NgClass support on SVG elements */
import 'classlist.js'; // Run 'npm install --save classlist.js'.
...
Also, as instructed for the classlist.js
polyfill, run:
npm install --save classlist.js
Congratulations! You now have your Angular application fully integrated with Blox Material, optimized and working for any browser supported by Angular. Now head to the components documentation for code samples and instructions on how to use all Material components in your app!


What happens next?
The next step is to complete the online exercises.
See the next stepsGive feedback? (30 second survey)
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Variables¶
Variables allow storing of data values. This is the same as the EV3 GUI variable
Example:
x = 5
y = 10
Lists¶
This is the same as the array in EV3 GUI.
Lists store multiple data values:
vector = [x, y]
vector = [5, 10]
Functions¶
A function is a block of code which only runs when it is called. It may return a value and can have parameters. This is the same as a myblock, but easier to write and modify:
def add(a,b):
return a + b
def PRINT(message):
print("Message", message)
Classes¶
With classes we can group functions and variables conveniently into an object. an object is just like a variable that uses the class as template. we can call all variables and functions on this object. Functions in a class are called methods. A special method is __init__ which is called once when we declare an object from the template:
class Person:
def __init__(name, age, weight):
self.name = name
self.age = age
self.height = height
def grow(amount):
self.height = height + amount
def how_tall():
return self.height
seric = Person("Seric", 14, 150)
seric.grow(1)
print (seric.height) # 151
print (seric.how_tall()) # 151
Conditions¶
Conditions allow is to react if a value is tru or false. It is the same as in EV3 GUI but easier to write:
if seric.height > 180:
print("He is tall")
elif seric.height < 180:
print("He is still growing")
else:
print("he is exactly 180cm")
Loops¶
We used while and for loops the repeat an indented block of code. While loops can also loop over elements in a list easily.
Loop forever¶
while True:
print("I loop forever")
Loop with condition¶
counter = 1
while counter <= 3:
print (counter)
counter = counter + 1
# 1
# 2
# 3
Loop with break¶
counter = 1
while True:
print (counter)
counter = counter + 1
if counter > 3:
break # break leaves the loop
# 1
# 2
# 3
Loop through a list¶
- for counter in [1,2,3]:
print (counter)
# 1 # 2 # 3
Import¶
When we create code in separate files they can be made known within a program while importing the functions, classes, or variables. This allows us to organize the code while grouping topical code into a file.
from spockbots.motor import SpockbotsMotor
from time import sleep
Program¶
A program can be executed in a terminal on teh EV3 brick. It must be executable. Let us assume the following core it in the file run_led.py. we make it executable with:
chmod a+x run_led.py
Here an example:
#!/usr/bin/env pybricks-micropython
from spockbots.output import flash
import time
def run_led():
"""
Flashes the LEDs on the brick
"""
flash()
if __name__ == "__main__":
run_led()
The first line tells us to use python to run the program.
The if __name__ line tells us to run the next lines (e.g. the function) as functions are not run when we define them.


Ionic & SurveyJS
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Welcome.
Chess move generation and validation library: courtesy of
jhlywa
Read more about chess AI:
static evaluation,
minimax and
alpha-beta pruning
Animation options:


Vettel happy for Hamilton but disappointed Ferrari aren't in contention
by Joseph TyrrellLewis Hamilton and Sebastian Vettel shared a special moment after the US Grand Prix and the German has admitted he's happy for Hamilton but insists he isn't content with Ferrari being so far back.
Hamilton wrapped up a sixth Formula 1 World Championship at the Circuit of the Americas, P2 enough to beat Valtteri Bottas to the title. Hamilton has been a class above the rest of the field once again this season with his ten race wins more than double anyone else.
Vettel and the Brit shared a moment before the podium in Austin and the four-time World Champion admitted he's happy for Hamilton but it isn't good seeing Ferrari so far back.
"I think now is the time to write as many good things as you can," said Vettel as quoted by Motorsport.
"I think if somebody wins the title six times then he deserves all of it. That is what I told him as well.
"I am happy for him. I am not happy that we are not in contention this year and we are so far back.
"We need to respect what he achieved the last years and also this year, plus together with his team how strong they have been. I am happy for him. But less happy for us."


2 references to All
System.Management.Automation (2)
engine\remoting\commands\PSRemotingCmdlet.cs (2)
2631
return GetMatchingRunspaces(writeobject, writeErrorOnNoMatch, SessionFilterState.
All
, null);
4182
case SessionFilterState.
All
:


h1: Brik Element with JS modules
p: With a custom build/bundler tool, access Brik Element with: import BrikElement from '@brikcss/element'
p: For direct use in modern browsers, you must use the full path: import BrikElement from<EMAIL_ADDRESS>Status:
Failed.