Stability: 2 - Unstable
A single instance of Node runs in a single thread. To take advantage of multi-core systems the user will sometimes want to launch a cluster of Node processes to handle the load.
The cluster module allows you to easily create child processes that all share server ports.
var cluster = require('cluster');
var http = require('http');
var numCPUs = require('os').cpus().length;
if (cluster.isMaster) {
// Fork workers.
for (var i = 0; i < numCPUs; i++) {
cluster.fork();
}
cluster.on('exit', function(worker, code, signal) {
console.log('worker ' + worker.process.pid + ' died');
});
} else {
// Workers can share any TCP connection
// In this case its a HTTP server
http.createServer(function(req, res) {
res.writeHead(200);
res.end("hello world\n");
}).listen(8000);
}
Running node will now share port 8000 between the workers:
% NODE_DEBUG=cluster node server.js
23521,Master Worker 23524 online
23521,Master Worker 23526 online
23521,Master Worker 23523 online
23521,Master Worker 23528 online
This feature was introduced recently, and may change in future versions. Please try it out and provide feedback.
Also note that, on Windows, it is not yet possible to set up a named pipe server in a worker.
The worker processes are spawned using the child_process.fork
method,
so that they can communicate with the parent via IPC and pass server
handles back and forth.
The cluster module supports two methods of distributing incoming connections.
The first one (and the default one on all platforms except Windows), is the round-robin approach, where the master process listens on a port, accepts new connections and distributes them across the workers in a round-robin fashion, with some built-in smarts to avoid overloading a worker process.
The second approach is where the master process creates the listen socket and sends it to interested workers. The workers then accept incoming connections directly.
The second approach should, in theory, give the best performance. In practice however, distribution tends to be very unbalanced due to operating system scheduler vagaries. Loads have been observed where over 70% of all connections ended up in just two processes, out of a total of eight.
Because server.listen()
hands off most of the work to the master
process, there are three cases where the behavior between a normal
node.js process and a cluster worker differs:
server.listen({fd: 7})
Because the message is passed to the master,
file descriptor 7 in the parent will be listened on, and the
handle passed to the worker, rather than listening to the worker's
idea of what the number 7 file descriptor references.server.listen(handle)
Listening on handles explicitly will cause
the worker to use the supplied handle, rather than talk to the master
process. If the worker already has the handle, then it's presumed
that you know what you are doing.server.listen(0)
Normally, this will cause servers to listen on a
random port. However, in a cluster, each worker will receive the
same "random" port each time they do listen(0)
. In essence, the
port is random the first time, but predictable thereafter. If you
want to listen on a unique port, generate a port number based on the
cluster worker ID.There is no routing logic in Node.js, or in your program, and no shared state between the workers. Therefore, it is important to design your program such that it does not rely too heavily on in-memory data objects for things like sessions and login.
Because workers are all separate processes, they can be killed or re-spawned depending on your program's needs, without affecting other workers. As long as there are some workers still alive, the server will continue to accept connections. Node does not automatically manage the number of workers for you, however. It is your responsibility to manage the worker pool for your application's needs.
The scheduling policy, either cluster.SCHED_RR
for round-robin or
cluster.SCHED_NONE
to leave it to the operating system. This is a
global setting and effectively frozen once you spawn the first worker
or call cluster.setupMaster()
, whatever comes first.
SCHED_RR
is the default on all operating systems except Windows.
Windows will change to SCHED_RR
once libuv is able to effectively
distribute IOCP handles without incurring a large performance hit.
cluster.schedulingPolicy
can also be set through the
NODE_CLUSTER_SCHED_POLICY
environment variable. Valid
values are "rr"
and "none"
.
execArgv
{Array} list of string arguments passed to the node executable.
(Default=process.execArgv
)exec
{String} file path to worker file. (Default=process.argv[1]
)args
{Array} string arguments passed to worker.
(Default=process.argv.slice(2)
)silent
{Boolean} whether or not to send output to parent's stdio.
(Default=false
)After calling .setupMaster()
(or .fork()
) this settings object will contain
the settings, including the default values.
It is effectively frozen after being set, because .setupMaster()
can
only be called once.
This object is not supposed to be changed or set manually, by you.
True if the process is a master. This is determined
by the process.env.NODE_UNIQUE_ID
. If process.env.NODE_UNIQUE_ID
is
undefined, then isMaster
is true
.
True if the process is not a master (it is the negation of cluster.isMaster
).
worker
{Worker object}When a new worker is forked the cluster module will emit a 'fork' event. This can be used to log worker activity, and create your own timeout.
var timeouts = [];
function errorMsg() {
console.error("Something must be wrong with the connection ...");
}
cluster.on('fork', function(worker) {
timeouts[worker.id] = setTimeout(errorMsg, 2000);
});
cluster.on('listening', function(worker, address) {
clearTimeout(timeouts[worker.id]);
});
cluster.on('exit', function(worker, code, signal) {
clearTimeout(timeouts[worker.id]);
errorMsg();
});
worker
{Worker object}After forking a new worker, the worker should respond with an online message. When the master receives an online message it will emit this event. The difference between 'fork' and 'online' is that fork is emitted when the master forks a worker, and 'online' is emitted when the worker is running.
cluster.on('online', function(worker) {
console.log("Yay, the worker responded after it was forked");
});
worker
{Worker object}address
{Object}After calling listen()
from a worker, when the 'listening' event is emitted on
the server, a listening event will also be emitted on cluster
in the master.
The event handler is executed with two arguments, the worker
contains the worker
object and the address
object contains the following connection properties:
address
, port
and addressType
. This is very useful if the worker is listening
on more than one address.
cluster.on('listening', function(worker, address) {
console.log("A worker is now connected to " + address.address + ":" + address.port);
});
The addressType
is one of:
4
(TCPv4)6
(TCPv6)-1
(unix domain socket)"udp4"
or "udp6"
(UDP v4 or v6)worker
{Worker object}Emitted after the worker IPC channel has disconnected. This can occur when a worker exits gracefully, is killed, or is disconnected manually (such as with worker.disconnect()).
There may be a delay between the disconnect
and exit
events. These events
can be used to detect if the process is stuck in a cleanup or if there are
long-living connections.
cluster.on('disconnect', function(worker) {
console.log('The worker #' + worker.id + ' has disconnected');
});
worker
{Worker object}code
{Number} the exit code, if it exited normally.signal
{String} the name of the signal (eg. 'SIGHUP'
) that caused
the process to be killed.When any of the workers die the cluster module will emit the 'exit' event.
This can be used to restart the worker by calling .fork()
again.
cluster.on('exit', function(worker, code, signal) {
console.log('worker %d died (%s). restarting...',
worker.process.pid, signal || code);
cluster.fork();
});
See child_process event: 'exit'.
Emitted the first time that .setupMaster()
is called.
settings
{Object}exec
{String} file path to worker file. (Default=process.argv[1]
)args
{Array} string arguments passed to worker.
(Default=process.argv.slice(2)
)silent
{Boolean} whether or not to send output to parent's stdio.
(Default=false
)setupMaster
is used to change the default 'fork' behavior. Once called,
the settings will be present in cluster.settings
.
Note that:
.setupMaster()
has any effect, subsequent calls are
ignoredenv
passed to .fork()
.fork()
calls .setupMaster()
internally to establish the defaults, so to
have any effect, .setupMaster()
must be called before any calls to
.fork()
Example:
var cluster = require("cluster");
cluster.setupMaster({
exec : "worker.js",
args : ["--use", "https"],
silent : true
});
cluster.fork();
This can only be called from the master process.
env
{Object} Key/value pairs to add to worker process environment.Spawn a new worker process.
This can only be called from the master process.
callback
{Function} called when all workers are disconnected and handles are
closedCalls .disconnect()
on each worker in cluster.workers
.

The method takes an optional callback argument which will be called when finished.
This can only be called from the master process.
A reference to the current worker object. Not available in the master process.
var cluster = require('cluster');
if (cluster.isMaster) {
console.log('I am master');
cluster.fork();
cluster.fork();
} else if (cluster.isWorker) {
console.log('I am worker #' + cluster.worker.id);
}
A hash that stores the active worker objects, keyed by id
field. Makes it
easy to loop through all the workers. It is only available in the master
process.
A worker is removed from cluster.workers just before the 'disconnect'
or
'exit'
event is emitted.
// Go through all workers
function eachWorker(callback) {
for (var id in cluster.workers) {
callback(cluster.workers[id]);
}
}
eachWorker(function(worker) {
worker.send('big announcement to all workers');
});
Should you wish to reference a worker over a communication channel, using the worker's unique id is the easiest way to find the worker.
socket.on('data', function(id) {
var worker = cluster.workers[id];
});
A Worker object contains all public information and method about a worker.
In the master it can be obtained using cluster.workers
. In a worker
it can be obtained using cluster.worker
.
Each new worker is given its own unique id, this id is stored in the
id
.
While a worker is alive, this is the key that indexes it in cluster.workers
All workers are created using child_process.fork()
, the returned object
from this function is stored as .process
. In a worker, the global process
is stored.
See: Child Process module
Note that workers will call process.exit(0)
if the 'disconnect'
event occurs
on process
and .suicide
is not true
. This protects against accidental
disconnection.
Set by calling .kill()
or .disconnect()
, until then it is undefined
.
The boolean worker.suicide
lets you distinguish between voluntary and accidental
exit, the master may choose not to respawn a worker based on this value.
cluster.on('exit', function(worker, code, signal) {
if (worker.suicide === true) {
console.log('Oh, it was just suicide\' – no need to worry').
}
});
// kill worker
worker.kill();
message
{Object}sendHandle
{Handle object}This function is equal to the send methods provided by
child_process.fork()
. In the master you should use this function to
send a message to a specific worker.
In a worker you can also use process.send(message)
, it is the same function.
 In the master, it does this by disconnecting
the worker.process
, and once disconnected, killing with signal
. In the
worker, it does it by disconnecting the channel, and then exiting with code 0
.
Causes .suicide
to be set.
This method is aliased as worker.destroy()
for backwards compatibility.
Note that in a worker, process.kill()
exists, but it is not this function,
it is kill.
In a worker, this function will close all servers, wait for the 'close' event on those servers, and then disconnect the IPC channel.
In the master, an internal message is sent to the worker causing it to call
.disconnect()
on itself.
Causes .suicide
to be set.
Note that after a server is closed, it will no longer accept new connections, but connections may be accepted by any other listening worker. Existing connections will be allowed to close as usual. When no more connections exist, see server.close(), the IPC channel to the worker will close allowing it to die gracefully.
The above applies only to server connections, client connections are not automatically closed by workers, and disconnect does not wait for them to close before exiting.
Note that in a worker, process.disconnect
exists, but it is not this function,
it is disconnect.
Because long living server connections may block workers from disconnecting, it
may be useful to send a message, so application specific actions may be taken to
close them. It also may be useful to implement a timeout, killing a worker if
the disconnect
event has not been emitted after some time.
if (cluster.isMaster) {
var worker = cluster.fork();
var timeout;
worker.on('listening', function(address) {
worker.send('shutdown');
worker.disconnect();
timeout = setTimeout(function() {
worker.kill();
}, 2000);
});
worker.on('disconnect', function() {
clearTimeout(timeout);
});
} else if (cluster.isWorker) {
var net = require('net');
var server = net.createServer(function(socket) {
// connections never end
});
server.listen(8000);
process.on('message', function(msg) {
if(msg === 'shutdown') {
// initiate graceful close of any connections to server
}
});
}
message
{Object}This event is the same as the one provided by child_process.fork()
.
In a worker you can also use process.on('message')
.
As an example, here is a cluster that keeps count of the number of requests in the master process using the message system:
var cluster = require('cluster');
var http = require('http');
if (cluster.isMaster) {
// Keep track of http requests
var numReqs = 0;
setInterval(function() {
console.log("numReqs =", numReqs);
}, 1000);
// Count requestes
function messageHandler(msg) {
if (msg.cmd && msg.cmd == 'notifyRequest') {
numReqs += 1;
}
}
// Start workers and listen for messages containing notifyRequest
var numCPUs = require('os').cpus().length;
for (var i = 0; i < numCPUs; i++) {
cluster.fork();
}
Object.keys(cluster.workers).forEach(function(id) {
cluster.workers[id].on('message', messageHandler);
});
} else {
// Worker processes have a http server.
http.Server(function(req, res) {
res.writeHead(200);
res.end("hello world\n");
// notify master about the request
process.send({ cmd: 'notifyRequest' });
}).listen(8000);
}
Similar to the cluster.on('online')
event, but specific to this worker.
cluster.fork().on('online', function() {
// Worker is online
});
It is not emitted in the worker.
address
{Object}Similar to the cluster.on('listening')
event, but specific to this worker.
cluster.fork().on('listening', function(address) {
// Worker is listening
});
It is not emitted in the worker.
Similar to the cluster.on('disconnect')
event, but specfic to this worker.
cluster.fork().on('disconnect', function() {
// Worker has disconnected
});
code
{Number} the exit code, if it exited normally.signal
{String} the name of the signal (eg. 'SIGHUP'
) that caused
the process to be killed.Similar to the cluster.on('exit')
event, but specific to this worker.
var worker = cluster.fork();
worker.on('exit', function(code, signal) {
if( signal ) {
console.log("worker was killed by signal: "+signal);
} else if( code !== 0 ) {
console.log("worker exited with error code: "+code);
} else {
console.log("worker success!");
}
});
This event is the same as the one provided by child_process.fork()
.
In a worker you can also use process.on('error')
.


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Class DynamicLinkLoader
- java.lang.Object
-
- org.lwjgl.system.macosx.DynamicLinkLoader
-
public class DynamicLinkLoader extends java.lang.Object
Native bindings to.
-
-
Field Summary
Fields Modifier and Type Field and Description static long
RTLD_DEFAULT
Special-handle values forDynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
.static int
RTLD_GLOBAL
RTLD_LAZY
RTLD_LOCALThemode
argument toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
contains one of the following.static long
RTLD_MAIN_ONLY
RTLD_NEXTSpecial-handle values forDynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
.static int
RTLD_NOW
Themode
argument toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
contains one of the following.static long
RTLD_SELF
Special-handle values forDynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
.
-
Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method and Description static int
dlclose(long handle)
Closes a dynamic library or bundle.static java.lang.String
dlerror()
Provides diagnostic information corresponding to problems with calls toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
,DynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
, andDynamicLinkLoader.dlclose(long)
in the same thread.static long
dlopen(java.nio.ByteBuffer path, int mode)
Loads and links a dynamic library or bundle.static long
dlopen(java.lang.CharSequence path, int mode)
Loads and links a dynamic library or bundle.static long
dlsym(long handle, java.nio.ByteBuffer name)
Returns the address of a symbol.static long
dlsym(long handle, java.lang.CharSequence name)
Returns the address of a symbol.
-
-
-
Field Detail
-
RTLD_LAZY
public static final int RTLD_LAZY
Themode
argument toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
contains one of the following.- See Also:
- Constant Field Values
-
RTLD_NOW
public static final int RTLD_NOW
Themode
argument toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
contains one of the following.- See Also:
- Constant Field Values
-
RTLD_LOCAL
public static final int RTLD_LOCAL
Themode
argument toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
contains one of the following.- See Also:
- Constant Field Values
-
RTLD_GLOBAL
public static final int RTLD_GLOBAL
Themode
argument toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
contains one of the following.- See Also:
- Constant Field Values
-
RTLD_NEXT
public static final long RTLD_NEXT
Special-handle values forDynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
.- See Also:
- Constant Field Values
-
RTLD_DEFAULT
public static final long RTLD_DEFAULT
Special-handle values forDynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
.- See Also:
- Constant Field Values
-
RTLD_SELF
public static final long RTLD_SELF
Special-handle values forDynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
.- See Also:
- Constant Field Values
-
RTLD_MAIN_ONLY
public static final long RTLD_MAIN_ONLY
Special-handle values forDynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
.- See Also:
- Constant Field Values
-
-
Method Detail
-
dlopen
public static long dlopen(java.nio.ByteBuffer path, int mode)
Loads and links a dynamic library or bundle.This function examines the Mach-O file specified by path. If the image is compatible with the current process and has not already been loaded into the process, the image is loaded and linked. If the image contains initializer functions, they are executed before this function returns.
Subsequent calls to
dlopen
to load the same image return the same handle, but the internal reference count for the handle is incremented. Therefore, alldlopen
calls must be balanced withDynamicLinkLoader.dlclose(long)
calls.For efficiency, the
DynamicLinkLoader.RTLD_LAZY
binding mode is preferred overDynamicLinkLoader.RTLD_NOW
. However, usingDynamicLinkLoader.RTLD_NOW
ensures that any undefined symbols are discovered during the call todlopen
.The dynamic loader looks in the paths specified by a set of environment variables, and in the process's current directory, when it searches for a library. These paths are called dynamic loader search paths. The environment variables are
LD_LIBRARY_PATH
,DYLD_LIBRARY_PATH
, andDYLD_FALLBACK_LIBRARY_PATH
. The default value ofDYLD_FALLBACK_LIBRARY_PATH
(used when this variable is not set), is$HOME/lib;/usr/local/lib;/usr/lib
.The order in which the search paths are searched depends on whether path is a filename (it does not contain a slash) or a pathname (it contains at least one slash).
When path is a filename, the dynamic loader searches for the library in the search paths in the following order:
- $LD_LIBRARY_PATH
- $DYLD_LIBRARY_PATH
- The process's working directory
- $DYLD_FALLBACK_LIBRARY_PATH
When path is a pathname, the dynamic loader searches for the library in the search paths in the following order:
- $DYLD_LIBRARY_PATH
- The given pathname
- $DYLD_FALLBACK_LIBRARY_PATH using the filename
- Parameters:
path
- path to the image to openmode
- specifies when the loaded image's external symbols are bound to their definitions in dependent libraries (lazy or at load time) and the visibility of the image's exported symbols (global or local). The value of this parameter is made up by ORing one binding behavior value with one visibility specification value.The following values specify the binding behavior:
DynamicLinkLoader.RTLD_LAZY
(default): Each external symbol reference is bound the first time it's used.DynamicLinkLoader.RTLD_NOW
: All external symbol references are bound immediately.
The following values specify external symbol visibility:
DynamicLinkLoader.RTLD_GLOBAL
(default): The loaded image's exported symbols are available to any images that use a flat namespace or to calls to dlsym when using a special handle (seeDynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
for details).DynamicLinkLoader.RTLD_LOCAL
: The loaded image's exported symbols are generally hidden. They are available only toDynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
invocations that use the handle returned by this function.
-
dlopen
public static long dlopen(java.lang.CharSequence path, int mode)
Loads and links a dynamic library or bundle.This function examines the Mach-O file specified by path. If the image is compatible with the current process and has not already been loaded into the process, the image is loaded and linked. If the image contains initializer functions, they are executed before this function returns.
Subsequent calls to
dlopen
to load the same image return the same handle, but the internal reference count for the handle is incremented. Therefore, alldlopen
calls must be balanced withDynamicLinkLoader.dlclose(long)
calls.For efficiency, the
DynamicLinkLoader.RTLD_LAZY
binding mode is preferred overDynamicLinkLoader.RTLD_NOW
. However, usingDynamicLinkLoader.RTLD_NOW
ensures that any undefined symbols are discovered during the call todlopen
.The dynamic loader looks in the paths specified by a set of environment variables, and in the process's current directory, when it searches for a library. These paths are called dynamic loader search paths. The environment variables are
LD_LIBRARY_PATH
,DYLD_LIBRARY_PATH
, andDYLD_FALLBACK_LIBRARY_PATH
. The default value ofDYLD_FALLBACK_LIBRARY_PATH
(used when this variable is not set), is$HOME/lib;/usr/local/lib;/usr/lib
.The order in which the search paths are searched depends on whether path is a filename (it does not contain a slash) or a pathname (it contains at least one slash).
When path is a filename, the dynamic loader searches for the library in the search paths in the following order:
- $LD_LIBRARY_PATH
- $DYLD_LIBRARY_PATH
- The process's working directory
- $DYLD_FALLBACK_LIBRARY_PATH
When path is a pathname, the dynamic loader searches for the library in the search paths in the following order:
- $DYLD_LIBRARY_PATH
- The given pathname
- $DYLD_FALLBACK_LIBRARY_PATH using the filename
- Parameters:
path
- path to the image to openmode
- specifies when the loaded image's external symbols are bound to their definitions in dependent libraries (lazy or at load time) and the visibility of the image's exported symbols (global or local). The value of this parameter is made up by ORing one binding behavior value with one visibility specification value.The following values specify the binding behavior:
DynamicLinkLoader.RTLD_LAZY
(default): Each external symbol reference is bound the first time it's used.DynamicLinkLoader.RTLD_NOW
: All external symbol references are bound immediately.
The following values specify external symbol visibility:
DynamicLinkLoader.RTLD_GLOBAL
(default): The loaded image's exported symbols are available to any images that use a flat namespace or to calls to dlsym when using a special handle (seeDynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
for details).DynamicLinkLoader.RTLD_LOCAL
: The loaded image's exported symbols are generally hidden. They are available only toDynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
invocations that use the handle returned by this function.
-
dlerror
public static java.lang.String dlerror()
Provides diagnostic information corresponding to problems with calls toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
,DynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
, andDynamicLinkLoader.dlclose(long)
in the same thread.When there's a problem to report, this function returns a pointer to a null-terminated string describing the problem. Otherwise, this function returns
NULL
.Each call to
dlerror
resets its diagnostic buffer. If a program needs to keep a record of past error messages, it must store them itself. Subsequent calls todlerror
in the same thread with no calls toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
,DynamicLinkLoader.dlsym(long, java.nio.ByteBuffer)
, orDynamicLinkLoader.dlclose(long)
, returnNULL
.
-
dlsym
public static long dlsym(long handle, java.nio.ByteBuffer name)
Returns the address of a symbol.The value of handle specifies what images this function searches for to locate the symbol specified by the symbol parameter. The following table describes the possible values for the handle parameter:
Handle value Search scope dlopen
handleImage associated with the DynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
handle.DynamicLinkLoader.RTLD_DEFAULT
Every dependent library or DynamicLinkLoader.RTLD_GLOBAL
–opened library in the current process, in the order they were loaded.DynamicLinkLoader.RTLD_NEXT
Dependent libraries that were loaded after the one calling this function. Libraries opened with DynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
are not searched.Unlike in the NS... functions, the symbol parameter doesn't require a leading underscore to be part of the symbol name.
- Parameters:
handle
- a handle obtained by a call toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
, or a special handle. If the handle was obtained by a call toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
, it must not have been closed with a call toDynamicLinkLoader.dlclose(long)
. These are the possible special-handle values:DynamicLinkLoader.RTLD_DEFAULT
, andDynamicLinkLoader.RTLD_NEXT
.name
- the null-terminated character string containing the C name of the symbol being sought
-
dlsym
public static long dlsym(long handle, java.lang.CharSequence name)
Returns the address of a symbol.The value of handle specifies what images this function searches for to locate the symbol specified by the symbol parameter. The following table describes the possible values for the handle parameter:
Handle value Search scope dlopen
handleImage associated with the DynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
handle.DynamicLinkLoader.RTLD_DEFAULT
Every dependent library or DynamicLinkLoader.RTLD_GLOBAL
–opened library in the current process, in the order they were loaded.DynamicLinkLoader.RTLD_NEXT
Dependent libraries that were loaded after the one calling this function. Libraries opened with DynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
are not searched.Unlike in the NS... functions, the symbol parameter doesn't require a leading underscore to be part of the symbol name.
- Parameters:
handle
- a handle obtained by a call toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
, or a special handle. If the handle was obtained by a call toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
, it must not have been closed with a call toDynamicLinkLoader.dlclose(long)
. These are the possible special-handle values:DynamicLinkLoader.RTLD_DEFAULT
, andDynamicLinkLoader.RTLD_NEXT
.name
- the null-terminated character string containing the C name of the symbol being sought
-
dlclose
public static int dlclose(long handle)
Closes a dynamic library or bundle.This function decreases the reference count of the image referenced by handle. When the reference count for handle becomes 0, the termination routines in the image are called, and the image is removed from the address space of the current process. After that point, handle is rendered invalid.
- Parameters:
handle
- a handle obtained through a call toDynamicLinkLoader.dlopen(java.nio.ByteBuffer, int)
.
-
-


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Testimonials
BigOmics has shaped the analytics we do in our lab today. We now have a user-friendly tool to rapidly analyze big datasets ourselves. I recommend BigOmics to any lab looking to improve their data analysis.


I have to say, it's kind of refreshing to hear from someone who cares about Emma Goldman. Most people nowadays haven't even heard of her.
I'm afraid I'm incredibly busy right now, but maybe we should have a talk someday? I'll let you know when I have some more time.
"Before we can forgive one another, we have to understand one another." - Emma Goldman


Welcome, this website contains the data, scripts and presentation for the project of Knowledge and the web On this page are the most important files from the project. All the files can also be found in our github repository.


In the from below, specify to which decimal number should the PI be displayed. Note that the maximum number that will be processed is 100. The app will inform you if you happen to type a higher (or lower!) number.


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(C)2019 Soruto Project (https://github.com/SorutoProject)
The MIT License
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
The MIT License
Copyright (c) 2019 Soruto Project
以下に定める条件に従い、本ソフトウェアおよび関連文書のファイル（以下「ソフトウェア」）の複製を取得するすべての人に対し、ソフトウェアを無制限に扱うことを無償で許可します。これには、ソフトウェアの複製を使用、複写、変更、結合、掲載、頒布、サブライセンス、および/または販売する権利、およびソフトウェアを提供する相手に同じことを許可する権利も無制限に含まれます。
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Copyright (c) 2011-2018, Christopher Jeffrey (https://github.com/chjj/)
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
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This software is provided by the copyright holders and contributors “as is” and any express or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no event shall the copyright owner or contributors be liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any way out of the use of this software, even if advised of the possibility of such damage.
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Copyright (c) Sindre Sorhus<EMAIL_ADDRESS>(sindresorhus.com)
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(The MIT License)
Copyright (C) 2011-2015 by Vitaly Puzrin
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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MIT License
opyright (c) 2017 Arthur Guiot
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


schtasks change
Changes one or more of the following properties of a task.
The program that the task runs (/tr).
The user account under which the task runs (/ru).
The password for the user account (/rp).
Adds the interactive-only property to the task (/it).
Syntax
schtasks /change /tn TaskName [/s Computer [/u [Domain**\]User [/p** Password]]] [/ru {[Domain**\]User | System}] [/rp** Password] [/tr TaskRun] [/st StartTime] [/ri Interval] [{/et EndTime | /du Duration} [/k]] [/sd StartDate] [/ed EndDate] [/{ENABLE | DISABLE}] [/it] [/z]
Parameters
/tn TaskName
Identifies the task to be changed. Enter the task name.
/s Computer
Specifies the name or IP address of a remote computer (with or without backslashes). The default is the local computer.
/u [Domain\]User
Runs this command with the permissions of the specified user account. The default is the permissions of the current user of the local computer. The specified user account must be a member of the Administrators group on the remote computer. The /u and /p parameters are valid only for changing a task on a remote computer (/s).
/p Password
Specifies the password of the user account specified in the /u parameter. If you use the /u parameter, but omit the /p parameter or the password argument, Schtasks prompts you for a password.
Copy
The **/u** and **/p** parameters are valid only when you use **/s**.
/ru {[Domain\]User | System}
Specifies to change the user account under which the task runs. For specifying the Local System account, valid entries are "", "NT AUTHORITY\SYSTEM", or "SYSTEM".
Copy
When you change the user account, you must also change the user password. If a command has an **/ru** parameter but not an **/rp** parameter, schtasks prompts for a new password.
Tasks run with permissions of the local system account do not require or prompt for a password.
/rp Password
Specifies a new password for the existing user account, or the user account specified by the /ru parameter. This parameter is ignored with used with the local system account.
/tr TaskRun
Changes the program that the task runs. Enter the fully qualified path and file name of an executable file, script file, or batch file. If you omit the path, schtasks assumes that the file is in the systemroot\System32 directory. The specified program replaces the original program run by the task.
/st Starttime
Specifies the start time for the task, using the 24-hour time format, HH:mm. For example, a value of 14:30 is equivalent to the 12-hour time of 2:30 PM.
/ri Interval
Specifies the repetition interval for the scheduled task, in minutes. Valid range is 1 - 599940 (599940 minutes = 9999 hours).
/et EndTime
Specifies the end time for the task, using the 24-hour time format, HH:mm. For example, a value of 14:30 is equivalent to the 12-hour time of 2:30 PM.
/du Duration
Specifies to close the task at the EndTime or Duration, if specified.
/k
Stops the program that the task runs at the time specified by /et or /du. Without /k, Schtasks does not start the program again after it reaches the time specified by /et or /du, but it does not stop the program if it is still running. This parameter is optional and valid only with a MINUTE or HOURLY schedule.
/sd StartDate
Specifies the first date on which the task should be run. The date format is mm/dd/yyyy.
/ed EndDate
Specifies the last date on which the task should be run. The format is mm/dd/yyyy.
/ENABLE
Specifies to enable the scheduled task.
/DISABLE
Specifies to disable the scheduled task.
/it
Specifies to run the scheduled task only when the "run as" user (the user account under which the task runs) is logged on to the computer.
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This parameter has no effect on tasks that run with system permissions or tasks that already have the interactive-only property set. You can not use a change command to remove the interactive-only property from a task.
By default, the "run as" user is the current user of the local computer when the task is scheduled or the account specified by the **/u** parameter, if one is used. However, if the command includes the **/ru** parameter, then the "run as" user is the account specified by the **/ru** parameter.
/z
Specifies to delete the task upon the completion of its schedule.
/?
Displays help at the command prompt.
Remarks
The /tn and /s parameters identify the task. The /tr, /ru, and /rp parameters specify properties of the task that you can change.
The /ru and /rp parameters specify the permissions under which the task runs. The /u and /p parameters specify the permissions used to change the task.
To change tasks on a remote computer, the user must be logged on to the local computer with an account that is a member of the Administrators group on the remote computer.
To run a /change command with the permissions of a different user (/u, /p), the local computer must be in the same domain as the remote computer or must be in a domain that the remote computer domain trusts.
The System account does not have interactive logon rights. Users do not see and cannot interact with programs run with system permissions.
To identify tasks with the /it property, use a verbose query (/query /v). In a verbose query display of a task with /it, the Logon Mode field has a value of Interactive only.
Examples
To change the program that a task runs
The following command changes the program that the Virus Check task runs from VirusCheck.exe to VirusCheck2.exe. This command uses the /tn parameter to identify the task and the /tr parameter to specify the new program for the task. (You cannot change the task name.)
schtasks /change /tn "Virus Check" /tr C:\VirusCheck2.exe
In response, SchTasks.exe displays the following success message:
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SUCCESS: The parameters of the scheduled task "Virus Check" have been changed.
As a result of this command, the Virus Check task now runs VirusCheck2.exe.
To change the password for a remote task
The following command changes the password of the user account for the RemindMe task on the remote computer, Svr01. The command uses the /tn parameter to identify the task and the /s parameter to specify the remote computer. It uses the /rp parameter to specify the new password, p@ssWord3.
This procedure is required whenever the password for a user account expires or changes. If the password saved in a task is no longer valid, then the task does not run.
**schtasks /change /tn RemindMe /s Svr01 /rp p@ssWord3**
In response, SchTasks.exe displays the following success message:
Copy
SUCCESS: The parameters of the scheduled task "RemindMe" have been changed.
As a result of this command, the RemindMe task now runs under its original user account, but with a new password.
To change the program and user account for a task
The following command changes the program that a task runs and changes the user account under which the task runs. Essentially, it uses an old schedule for a new task. This command changes the ChkNews task, which starts Notepad.exe every morning at 9:00 A.M., to start Internet Explorer instead.
The command uses the /tn parameter to identify the task. It uses the /tr parameter to change the program that the task runs and the /ru parameter to change the user account under which the task runs.
The /rp parameter, which provides the password for the user account, is omitted. You must provide a password for the account, but you can use the /rp parameter and type the password in clear text, or wait for SchTasks.exe to prompt you for a password, and then enter the password in obscured text.
schtasks /change /tn ChkNews /tr "c:\program files\Internet Explorer\iexplore.exe" /ru DomainX\Admin01
In response, SchTasks.exe requests the password for the user account. It obscures the text you type, so the password is not visible.
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Please enter the password for DomainX\Admin01:
Note that the /tn parameter identifies the task and that the /tr and /ru parameters change the properties of the task. You cannot use another parameter to identify the task and you cannot change the task name.
In response, SchTasks.exe displays the following success message:
Copy
SUCCESS: The parameters of the scheduled task "ChkNews" have been changed.
As a result of this command, the ChkNews task now runs Internet Explorer with the permissions of an Administrator account.
To change a program to the System account
The following command changes the SecurityScript task so that it runs with permissions of the System account. It uses the /ru "" parameter to indicate the System account.
schtasks /change /tn SecurityScript /ru ""
In response, SchTasks.exe displays the following success message:
Copy
INFO: The run as user name for the scheduled task "SecurityScript" will be changed to "NT AUTHORITY\SYSTEM".
SUCCESS: The parameters of the scheduled task "SecurityScript" have been changed.
Because tasks run with System account permissions do not require a password, SchTasks.exe does not prompt for one.
To run a program only when I am logged on
The following command adds the interactive-only property to MyApp, an existing task. This property assures that the task runs only when the "run as" user, that is, the user account under which the task runs, is logged on to the computer.
The command uses the /tn parameter to identify the task and the /it parameter to add the interactive-only property to the task. Because the task already runs with the permissions of my user account, I do not need to change the /ru parameter for the task.
schtasks /change /tn MyApp /it
In response, SchTasks.exe displays the following success message.
Copy
SUCCESS: The parameters of the scheduled task "MyApp" have been changed.


|
National
Undergraduate Fellowship Program
in Plasma Physics and Fusion Energy Sciences
(Funded by the U.S. Department
of Energy's Office of Fusion Energy Sciences)
Application
Deadline: February 1, 2002
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State:
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(i.e.
609-555-1212) |
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Permanent Address |
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Address |
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you are a permanent resident alien in the U.S. please provide |
PRA Number:
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Transcripts requested from:
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Please have transcripts of all undergraduate
work sent by February 1, 2002 to the address given at the end of this
application.
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Honors or Awards. Enter "NONE" if applicable: |
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In
the sections below, indicate your proficiency in the following
areas/instruments.
(1 = No Experience, 5 = Proficient) |
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Pascal, HTML, Java, etc.):
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Discuss any special skills you would like to exercise or develop during
your NUF appointment. (In answering, you may use a list
or a paragraph format. Your answers will be read for content rather than
writing style. You should check your spelling and grammar.) |
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Answer Questions |
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Please answer one of
the following questions using no more than 250 words.
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will be read for content rather than writing style. You should check
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Describe a frustrating project on which you worked
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I certify that the information contained herein is true, complete, and
correct, and that I plan to return to the classroom as a teacher for
the following school year.
By checking this box, I acknowledge that my application is complete and
ready for review.
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Getting started¶
Where are we going?¶
We mentioned Machine Learning on the workshop land page —here’s a figure that provides a little more perspective. Note the emphasis on sample size “rules of thumb”. This is a characteristic of the empirical and computational nature of machine learning that enables the use of complex and sensitive models which subsequently require large amounts of data to actualize meaningful (as opposed to spurious) model fits. The figure also gives an indication of the vast and diverse set of tools and tasks that make up the machine learning world. If you’re interested in exploring this fascinating methodology space and learning how to leverage and apply these powerful tools (which, since you’re here, you probably are), then you’re going to need a fundamental understanding and serviceable skill set in programming, probability and statistics. And if you’re just starting your journey (congratulations!!) you’re in the right place!
http://scikit-learn.org/stable/tutorial/machine_learning_map
Industry Leading Tools¶
The above figure is part of Scikit-Learn’s extensive documentation and tutorial collection. Scikit-Learn is the leading open source collection of machine learning tools. There are some competitors (notably R, which has seen an increase in machine learning capabilities, but is still tailored more towards the more historical statistics and traditional data analysis communities), but it is safe to say that Scikit-Learn is the industry standard bearer. Scikit-Learn is a library in the python programming language – another industry standard in terms of programming languages – which has seen widespread adoption and the establishment of an incredibly vast and diverse ecosystem. Python is, and has been for quite some time now, the hottest most generally useful program language around. If you’re looking to build up your programming skill set, you cannot go wrong Python. One final industry leader is the Anaconda framework from Continuum Analytics. Anaconda is a platform that simplifies package management and deployment of open source data science capabilities. Data Scientists Love Anaconda.
Installing Python¶
Because (a) Python is the working language of the Data Science Immersive, and because (b) you’ll need to have a installation of Python on your computer if you want to follow along with the examples in this work shop, we encourage you to install Anaconda (which comes with a working installation of Python out of the box).
Installing an Editor¶
Data Scientists script and code data analysis pipelines, and so they use text editors! There are many editors to choose from... But unless you have a programming editor that you are already comfortable with we recommend that you try using Atom!
https://flight-manual.atom.io/getting-started/sections/installing-atom
Note
Programming practices, editors, version control, software engineering, and other related topics are not part of the scope of this short course.


After downloading and installing the Google Authenticator app, scan the QR code below to link your account. If you are unable to scan the QR code below, please enter the following code {{settings.secret}}
Once linked, please enter the verification code you see in the Google Authenticator app below.
The following one-time codes can be used if you need to gain access to your account in an emergency.
{{code}}


{% extends "base.html" %}
{% load breadcrumbs %}
{% block title %}Update Role {{ role.name }} in Project {{ project.name }}{% endblock %}
{% block head %}
{% endblock %}
{% block content %}
Update Role {{ role.name }} in Project {{ project.name }}
Here you can edit the role {{ role.name }}. Note that you can only remove
permissions if you have the "can_remove_members" permission for the project.
Also, note that you can only add permissions to the role that you are
allowed to give to other users.


Match engine constructor
The design the engine runs on
Engine options
A coordination signal to ensure that all processes are indeed killed due to asynchronous initialization of agents There is a race condition when a tournament/match is being destroyed and while every match is being destroyed, some matches are in the initialization stage where they call the engine's initialize function. As a result, when we send a match destroy signal, we spawn some processes and haven't spawned some others for the agents. As a result, all processes eventually get spawned but not all are cleaned up and killed.
Logger
Single memory watch interval so that all memory checks are made together
Override options
approx extra buffer time given to agents due to engine processing for timeout mechanism
Returns a promise that resolves with all the commands loaded from the previous time step of the provided match This coordinates all the Agents and waits for each one to finish their step
The match to get commands from agents for
a promise that resolves with an array of MatchEngine.Command elements, holding the command and id of the agent that sent it
Get the engine options
Returns the logger for this match engine
Handles partial stdout from an agent
the agent to process the command for
the string the agent sent
Initializes a single agent, called by initialize
Kills an agent and closes the process, and no longer attempts to receive coommands from it anymore
the agent to kill off
Attempts to kill and clean up anything else for a custom design based match
the match to kill and clean up
Parses a list of arguments for a given match and populates relevant strings as needed
the match to parse arguments for
the arguments to parse
Attempts to gracefully and synchronously resume a previously stopped match
the match to resume
the match to resume
Run a custom match. A custom match much print to stdout all relevant data to be used by the engine and Dimensions framework. All output after the conclude command from Design.OverrideOptions is outputted is stored as a list of new line delimited strings and returned as the match results. The match must exit with exit code 0 to be marked as succesfully complete and the processing of results stops and this function resolves
the match to run
Sends a message to a particular process governed by an agent in a specified match specified by the agentID
the match to work with
the message to send to agent's stdin
id that specifies the agent in the match to send the message to
Set the engine options
Set log level
Attempts to gracefully and synchronously stop a match's agents
the match to stop
the match to stop
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Congrats to everyone that participated in the first round of STEEMFEST MINNOW. I saw several $100 posts in the crowd. Lots to be proud of there. We’re on to the next round.
For this Round Please Prepare a Second and Final Post
You’re trying to go to Steemfest. Please make a post and describe the following and link that post in the comments-
A certain Challenge you feel needs to be addressed in the world
A vision statement of what a better alternative would look like
A Mission Statement
A specific set of Goals you have while attending Steemfest
How you plan to to achieve your goals and your mission
Please provide a simple chart of your refined budget
Posts are due Thursday July 6th.
The posts will be combined into a separate post and followers can mention their favorite post in the comments section. The winner should be announced within 1-2 weeks.
Judges
Judges will be asked to provide their sense of your overall plan on a scale of 1-10. The totals will be tallied and the highest tally of the judges will be awarded the all expense trip.
You should think of this as an investment the community is making in you. How will we achieve the highest return on our investment? What will you bring, create, achieve, that others couldn’t and why is that good for the platform? What value will you add to this community?
The 13 chosen finalists
https://steemit.com/steamfest/@xpency/fighting-my-way-to-steemfest2-are-you-all-not-supporting
https://steemit.com/steemfest/@abh12345/steemfest-2017-more-than-just-a-dream
https://steemit.com/steemfest/@siersod/steemfest-minnow-my-entry
https://steemit.com/steemfest/@varunsangwan/here-is-my-story-and-application-for-steemfest-2
https://steemit.com/steemfest2/@stormriderstudio/contest-entry-send-a-minnow-to-steemfest2
Best of Luck!
This page is synchronized from the post: ‘13 Finalists for STEEMFEST MINNOW- Show these minnows some love!’


Africanacity!
Akannames
Akan names are derived from Ghanaian culture. Frequently in Ghana, children are given their first name as a 'day name' which corresponds to the day in the week they were born
Here are Ghanian male day names.
Akan names are derived from Ghanaian culture. Frequently in Ghana, children are given their first name as a 'day name' which corresponds to the day in the week they were born
Here are Ghanian male day names.


Hiding/Showing Content
| Class | Screen Range |
|---|---|
| hide-on-large | Hidden on all large device |
| hide-on-small-only | Hidden on mobile only |
| hide-on-large-only | Hidden on desktop only |
| hide-on-med-only | Hidden on tablets only |
| hide-on-med-and-up | Visible only on Laptop and desktop |


Uber pretended its drivers were contractors, and now it owes New Jersey $650m in employment tax
by Cory DoctorowNot everything is legal in New Jersey: Uber has to pay the state of New Jersey $650m in unemployment and disability tax for the employee drivers that it pretended were contractors. Uber is appealing. It will lose. Uber drivers in Jersey are now entitled to unemployment insurance. (via /.) (Image: Quotecatalog, Ervins Strauhmanis, CC BY, modified)


Field Set 1
some content 1
Field Set 2
some content 2
Field Set 3
some content 3
Field Set 4
some content 4
Field Set 5
some content 5
Field Set 6
some content 6


Tree is used to display hierarchical data.
VirtualScrolling depends on @angular/cdk's ScrollingModule so begin with installing CDK if not already installed.
Tree component requires an array of TreeNode objects as its value. Let's begin with the TreeNode api. Note that all of the properties are optional.
| Name | Type | Default | Description |
|---|---|---|---|
| label | string | null | Label of the node. |
| data | any | null | Data represented by the node. |
| icon | string | null | Icon of the node to display next to content. |
| expandedIcon | string | null | Icon to use in expanded state. |
| collapsedIcon | string | null | Icon to use in collapsed state. |
| children | TreeNode[] | null | An array of treenodes as children. |
| leaf | boolean | null | Specifies if the node has children. Used in lazy loading. |
| style | string | null | Inline style of the node. |
| styleClass | string | null | Style class of the node. |
| expanded | boolean | null | Whether the node is in an expanded or collapsed state. |
| type | string | null | Type of the node to match ng-template type. |
| parent | TreeNode | null | Parent of the node. |
| draggable | boolean | null | Whether to disable dragging for a particular node even if draggableNodes is enabled. |
| droppable | boolean | null | Whether to disable dropping for a particular node even if droppableNodes is enabled. |
| selectable | boolean | null | Used to disable selection of a particular node. |
| key | string | null | Unique key of the node.(more) |
| emptyMessage | string | No records found. | Text to display when there is no data. Defaults to global value in i18n translation configuration. |
Most of the time, nodes will be loaded from a remote datasoure, here is an example NodeService that fetches the data from a json file.
The files.json file consists of sample data. In a real application, this should be a dynamic response generated from the remote call.
The component that uses this service makes a call to getFiles() and assigns them back to files property that is bound to the tree.
Tree supports 3 selection methods, single, multiple and checkbox. Selection is enabled by setting selectionMode property and providing a single TreeNode or an array of TreeNodes to reference the selections depending on the selection mode.
In multiple mode or checkbox mode, selection property should be an array. In multiple mode, items can either be selected using metaKey or toggled individually depending on the value of metaKeySelection property value which is true by default. On touch enabled devices metaKeySelection is turned off automatically. In checkbox mode, when inititing a tree with preselections, also set partialSelected property on node so that minus icon can be displayed when necessary.
In checkbox mode, selections propagate up and down, if you prefer not to do so, propagation can be turned off by propagateSelectionDown and propagateSelectionUp properties.
Tree provides onNodeSelect and onNodeUnselect options as callbacks for selection feature.
Selection of a particular node can be disabled by setting the selectable property of the node to false.
Icon of a treenode is defined using the icon property, if you need an icon depending on the expand or collapse state, use expandedIcon and collapsedIcon instead.
Sections can be customized using header, footer and empty templates.
By default label of a treenode is displayed inside a tree node, in case you need to place custom content define a pTemplate that gets the treenode as an implicit variable. Example below places an input field to create editable treenodes.
Multiple templates are supported by matching the type property of the TreeNode with the type of pTemplate. If a node has no type, then default ng-template is used.
Filtering is enabled by setting the filter property to true, by default label property of a node is used to compare against the value in the text field, in order to customize which field(s) should be used during search define filterBy property.
In addition filterMode specifies the filtering strategy. In lenient mode when the query matches a node, children of the node are not searched further as all descendants of the node are included. On the other hand, in strict mode when the query matches a node, filtering continues on all descendants.
Tree has exclusive integration with context menu created by binding a menu instance to the tree.
Lazy loading is handy to deal with large datasets. Instead of loading the whole tree, nodes can be loaded at onNodeExpand event. Important part of implementing lazy loading is defining leaf property of a node as false, this will instruct tree to display an arrow icon to indicate there are children of this node although they are not loaded yet. When the lazy node is expanded, onNodeExpand is called and a remote call can be made to add the children to the expanded node.
Assume at ngOnInit tree is initialized with a data like below that has nodes having no actual children but leaf property is set false.
Scrolling is used to preserve space as content of the tree is dynamic and enabled by scrollHeight property.
In cases where viewport should adjust itself according to the table parent's height instead of a fixed viewport height, set scrollHeight option as flex. In example below, table is inside a Dialog where viewport size dynamically responds to the dialog size changes such as resizing or maximizing.
VirtualScroller is a performant approach to handle huge data efficiently. Setting virtualScroll property as true and providing a virtualNodeHeight in pixels would be enough to enable this functionality.
Nodes can be reordered within a tree and also can be transferred between multiple trees. To enable dragging from a tree set draggableNodes to true and to allow dropping enable droppableNodes property. In addition, import TreeDragDropService and configure it as a provider at your component or module.
Multiple trees can be used in a drag drop operation, in order to add constraints like rejecting drags from a certain tree but allow from another use draggableScope and droppableScope properties which can be a string or an array. Following example uses 3 trees where second one only accepts drags from first tree and second one only accepts from second tree whereas first tree accepts drops from 3rd tree.
In case, a drop should be accepted based on a condition, enable validateDrop property, define an event handler for onNodeDrop where the passed event and call the accept callback of the event to accept a drop. Simply emitting the call of accept() will reject the drop.
Tree has a loading property, when enabled a spinner icon is displayed to indicate data load.
An optional loadingIcon property can be passed in case you prefer a different icon.
Horizontal mode is the alternative option for orientation.
| Name | Type | Default | Description |
|---|---|---|---|
| value | array | null | An array of treenodes. |
| selectionMode | string | null | Defines the selection mode, valid values "single", "multiple", and "checkbox". |
| selection | any | null | A single treenode instance or an array to refer to the selections. |
| style | string | null | Inline style of the component. |
| styleClass | string | null | Style class of the component. |
| contextMenu | ContextMenu | null | Context menu instance. |
| layout | string | vertical | Defines the orientation of the tree, valid values are 'vertical' and 'horizontal'. |
| draggableScope | string/array | null | Scope of the draggable nodes to match a droppableScope. |
| droppableScope | string/array | null | Scope of the droppable nodes to match a draggableScope. |
| draggableNodes | boolean | false | Whether the nodes are draggable. |
| droppableNodes | boolean | false | Whether the nodes are droppable. |
| metaKeySelection | boolean | true | Defines how multiple items can be selected, when true metaKey needs to be pressed to select or unselect an item and when set to false selection of each item can be toggled individually. On touch enabled devices, metaKeySelection is turned off automatically. |
| propagateSelectionUp | boolean | true | Whether checkbox selections propagate to ancestor nodes. |
| propagateSelectionDown | boolean | true | Whether checkbox selections propagate to descendant nodes. |
| loading | boolean | false | Displays a loader to indicate data load is in progress. |
| loadingIcon | string | pi pi-spinner | The icon to show while indicating data load is in progress. |
| emptyMessage | string | No records found | Text to display when there is no data. |
| ariaLabel | string | Used to define a string that labels the tree. | |
| ariaLabelledBy | string | pi pi-spinner | Establishes relationships between the component and label(s) where its value should be one or more element IDs. |
| togglerAriaLabel | string | Defines a string that labels the toggler icon for accessibility. | |
| validateDrop | boolean | false | When enabled, drop can be accepted or rejected based on condition defined at onNodeDrop. |
| filter | boolean | false | When specified, displays an input field to filter the items. |
| filterBy | string | label | When filtering is enabled, filterBy decides which field or fields (comma separated) to search against. |
| filterMode | string | lenient | Mode for filtering valid values are "lenient" and "strict". Default is lenient. |
| filterPlaceholder | string | null | Placeholder text to show when filter input is empty. |
| filterLocale | string | undefined | Locale to use in filtering. The default locale is the host environment's current locale. |
| scrollHeight | string | null | Height of the scrollable viewport. |
| virtualScroll | boolean | false | Whether the data should be rendered on demand during scroll. |
| virtualNodeHeight | number | null | Height of a node to use in calculations of virtual scrolling. |
| minBufferPx | number | null | Minimum amount of content buffer (in pixels) that the viewport must render. |
| maxBufferPx | number | null | Configures how much buffer space to render back up to when it detects that more buffer is required. |
| trackBy | Function | null | Function to optimize the node list rendering, default algoritm checks for object identity. |
| indentation | number | 1.5 | Indentation factor for spacing of the nested node when virtual scrolling is enabled. |
| Name | Parameters | Description |
|---|---|---|
| onNodeSelect | event.originalEvent: browser event event.node: Selected node instance. |
Callback to invoke when a node is selected. |
| onNodeUnselect | event.originalEvent: browser event event.node: Unselected node instance. |
Callback to invoke when a node is unselected. |
| onNodeExpand | event.originalEvent: browser event event.node: Expanded node instance. |
Callback to invoke when a node is expanded. |
| onNodeCollapse | event.originalEvent: browser event event.node: Collapsed node instance. |
Callback to invoke when a node is collapsed. |
| onNodeContextMenuSelect | event.originalEvent: browser event event.node: Selected node instance. |
Callback to invoke when a node is selected with right click. |
| onNodeDrop | event.originalEvent: browser event event.dragNode: Dragged node instance event.dropNode: Dropped node instance. event.index: Index of the dropped node within siblings. |
Callback to invoke when a node is dropped. |
| onFilter | event.filter: Filter value used in filtering. event.filteredValue: Filtered data after running the filtering. |
Callback to invoke when data is filtered. |
| Name | Parameters | Description |
|---|---|---|
| resetFilter | - | Resets filtering. |
| _filter | value: string | Applies filter by given value. |
| Name | Parameters |
|---|---|
| header | - |
| empty | - |
| footer | - |
Following is the list of structural style classes, for theming classes visit theming page.
| Name | Element |
|---|---|
| p-tree | Main container element |
| p-tree-horizontal | Main container element in horizontal mode |
| p-tree-container | Container of nodes |
| p-treenode | A treenode element |
| p-treenode-content | Content of a treenode |
| p-treenode-toggler | Toggle icon |
| p-treenode-icon | Icon of a treenode |
| p-treenode-label | Label of a treenode |
| p-treenode-children | Container element for node children |
None.


November 23 2015
This is my first Article
Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut
labore et dolore magnam aliquam quaerat voluptatem.
Until recently, the prevailing view assumed lorem ipsum was born as a nonsense text. “It's not Latin, though it looks like it, and it actually says
nothing,” Before & After magazine answered a curious reader, “Its ‘words’ loosely approximate the frequency with which letters occur in English, which
is why at a glance it looks pretty real.
Richard McClintock, a Latin scholar from Hampden-Sydney College, is credited with discovering the source behind the ubiquitous filler text. In seeing
a sample of lorem ipsum, his interest was piqued by consectetur—a genuine, albeit rare, Latin word. Consulting a Latin dictionary led McClintock to a
passage from De Finibus Bonorum et Malorum (“On the Extremes of Good and Evil”), a first-century B.C. text from the Roman philosopher Cicero.
December 11 2015
This is my second Article
Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut
labore et dolore magnam aliquam quaerat voluptatem.
Until recently, the prevailing view assumed lorem ipsum was born as a nonsense text. “It's not Latin, though it looks like it, and it actually says
nothing,” Before & After magazine answered a curious reader, “Its ‘words’ loosely approximate the frequency with which letters occur in English, which
is why at a glance it looks pretty real.
Richard McClintock, a Latin scholar from Hampden-Sydney College, is credited with discovering the source behind the ubiquitous filler text. In seeing
a sample of lorem ipsum, his interest was piqued by consectetur—a genuine, albeit rare, Latin word. Consulting a Latin dictionary led McClintock to a
passage from De Finibus Bonorum et Malorum (“On the Extremes of Good and Evil”), a first-century B.C. text from the Roman philosopher Cicero.
December 25 2015
This is my third Article
Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut
labore et dolore magnam aliquam quaerat voluptatem.
Until recently, the prevailing view assumed lorem ipsum was born as a nonsense text. “It's not Latin, though it looks like it, and it actually says
nothing,” Before & After magazine answered a curious reader, “Its ‘words’ loosely approximate the frequency with which letters occur in English, which
is why at a glance it looks pretty real.
Richard McClintock, a Latin scholar from Hampden-Sydney College, is credited with discovering the source behind the ubiquitous filler text. In seeing
a sample of lorem ipsum, his interest was piqued by consectetur—a genuine, albeit rare, Latin word. Consulting a Latin dictionary led McClintock to a
passage from De Finibus Bonorum et Malorum (“On the Extremes of Good and Evil”), a first-century B.C. text from the Roman philosopher Cicero.


CDS (Common Data Structure) defines higher level data structures or types on top of COS types that are used all over the PDF spec.
Examples of such data structures that are no longer COS "primitives" (like strings and numbers) or "composites" (like arrays or dictionaries) but have already domain specific behavior are the date or rectangle object.
The CDS objects are implemented as wrappers on COS objects. Every change is reflected immediately in the implementation (COS) layer and vice versa.


*** User 2017-05-05 21:48:52.157 ***
21:48:52.157 [info] Disabling blocking sync...
*** User 2017-05-05 21:48:52.162 ***
21:48:52.162 [info] Configured peer_service_manager partisan_default_peer_service_manager on node 'node-1@MacBook-Pro-de-Anne-France'
*** User 2017-05-05 21:48:53.628 ***
21:48:53.627 [info] Enabling membership...
*** User 2017-05-05 21:48:53.629 ***
21:48:53.629 [info] Disabling blocking sync...
*** User 2017-05-05 21:48:53.633 ***
21:48:53.633 [info] Configured peer_service_manager partisan_default_peer_service_manager on node 'node-2@MacBook-Pro-de-Anne-France'
*** User 2017-05-05 21:48:55.121 ***
21:48:55.120 [info] Enabling membership...
*** User 2017-05-05 21:48:55.122 ***
21:48:55.122 [info] Disabling blocking sync...
*** User 2017-05-05 21:48:55.127 ***
21:48:55.127 [info] Configured peer_service_manager partisan_default_peer_service_manager on node 'node-3@MacBook-Pro-de-Anne-France'
*** User 2017-05-05 21:48:55.366 ***
Joining node: 'node-3@MacBook-Pro-de-Anne-France' to 'runner@MacBook-Pro-de-Anne-France' at port 50838
*** User 2017-05-05 21:48:55.367 ***
Joining issued: 'node-3@MacBook-Pro-de-Anne-France' to 'runner@MacBook-Pro-de-Anne-France' at port 50838
*** User 2017-05-05 21:48:55.367 ***
Joining node: 'node-2@MacBook-Pro-de-Anne-France' to 'runner@MacBook-Pro-de-Anne-France' at port 50821
*** User 2017-05-05 21:48:55.368 ***
Joining issued: 'node-2@MacBook-Pro-de-Anne-France' to 'runner@MacBook-Pro-de-Anne-France' at port 50821
*** User 2017-05-05 21:48:55.368 ***
Joining node: 'node-1@MacBook-Pro-de-Anne-France' to 'runner@MacBook-Pro-de-Anne-France' at port 50809
*** User 2017-05-05 21:48:55.369 ***
Joining issued: 'node-1@MacBook-Pro-de-Anne-France' to 'runner@MacBook-Pro-de-Anne-France' at port 50809
*** User 2017-05-05 21:48:55.430 ***
Waiting for join to complete with manager: partisan_default_peer_service_manager
*** User 2017-05-05 21:48:55.432 ***
Finished.
*** CT 2017-05-05 21:48:55.432 *** COVER INFO
Adding nodes to cover test: ['runner@MacBook-Pro-de-Anne-France']
*** CT 2017-05-05 21:48:55.441 *** COVER INFO
Successfully added nodes to cover test: []
*** User 2017-05-05 21:48:55.441 ***
Case finished: sql_simple_contracted_latency_test
*** User 2017-05-05 21:49:02.488 ***
21:49:02.488 [info] Application lasp exited with reason: stopped
*** User 2017-05-05 21:49:02.489 ***
21:49:02.489 [info] Application partisan exited with reason: stopped
=== Ended at 2017-05-05 21:49:02
=== successfully completed test case
=== Returned value: ok
Test run history
| Top level test index


THE COOK, THE THIEF, HIS WIFE, AND HER LOVER (1989) A Film Review by Ted Prigge Copyright 1998 Ted Prigge
Writer/Director: Peter Greenaway Starring: Richard Bohringer, Michael Gambon, Helen Mirren, Alan Howard, Tim Roth, Liz Smith, Paul Russell, Ciarán Hinds, Gary Olsen, Ewan Stewart, Alex Kingston
Every night at "Le Hollandais" restaurant, the owner, Albert Spica (Michael Gambon), shows up with all his friends, and eats all he can, while talking loudly, and making a general rucous. Instead of being a dedicated, peaceful owner, Albert is actually a vile gangster who has recently bought out the restaurant from its head cook, Richard (Richard Bohringer), who nevertheless still works there.
But one night, Albert's bored and beautiful wife, Georgina (Helen Mirren), glances across the restaurant at one of its many customers, Michael (Alan Howard), and soon the two begin to flirt across the room. After he accidentally walks into the women's bathroom where she is, the two begin a silent affair, lasting over the course of the film as they have passionate, quiet sex in every nook and cranny of the restaurant...and with the aid of Richard, who allows them entrance into little hiding places where they can continue their tryst.
So begins the fable-like story writer/director Peter Greenaway has brought us. "The Cook, the Thief, His Wife, and Her Lover" is a lavishly directed film, filled with gorgeous production design, wild costumes, and scenes of such depravity and disgustingness that even John Waters would be shocked.
For the first hour, the film gets into a kind of routine: Albert and his goons (including one played by a pre-"Reservoir Dogs" Tim Roth) arrive, eat while talking annoyingly, and somewhere in there, both Georgina and Michael get up simultaneoulsy from their respective tables, and head into a hiding place to screw around, with some variation in there. But the second hour, as with most films which get into routines in the first hour, changes everything. After Albert finds out about them from one of the goon's mistresses, the two lovers flee to his place, a book depository where he works, and after awhile, Albert finds him, and brutally kills him.
I will not reveal the ending, primarily because it's such a great ending, truly one of the greatest endings to a film I've ever seen. But I will say this: it's definitely delicious (hee hee), and it's bound to have the audience leaving with a big smile in their face...unless they're completely grossed out.
There are hundreds of great things about this film, but sone of them are the direction by Peter Greenaway, and production design by Ben Van Os and Jan Roelfs, music by Michael Nymann, and costumes by the god-like Jean-Paul Gaultier, all which contribute into a film which is one of the most visually stunning films I've ever seen. The film is incredibly lavish, and the restaurant, where most of the film takes place, is one of the most incredible sights on celluloid.  This is probably the most gorgeous-looking film in the past decade.
Not only that, but every primary actor deserves individual praise. Richard Bohringer, a staple of French cinema, is perfect at portraying a man who hides his emotions and hatred for Albert under a plastic facade, creating the perfect look of a pot ready to boil over. Michael Gambon is perfect as the obese, horrific Albert, being able to pronouce every line of his dialogue realistically and with style. Helen Mirren portrays the bored Georgina as a woman who's been hollowed out by her marriage to Albert, and later shows a touching emotion when she finds out she's really in love with Michael (one scene has her talking to him when he's not there - I almost cried). And Alan Howard, who doesn't even speak until about 50 minutes into the film, is wonderful, playing a man who hints at everything with facial expressions, and is the exact opposite of Albert. Tim Roth, in a supporting role, is pretty awesome too.
I've read that this film is a film about the connection between food and sex. I've also read that it's nothing but a wild tale, not really deserving of the title of "art." These are both wrong in their own respects. "The Cook, the Thief, His Wife, and Her Lover" is actually a condemnation of gluttony, not so much as in respect to eating, but in respect to all kinds of excessiveness. The film is not a contemporary "Last Tango in Paris," showing a pair of lovers trying to escape through casual sex. It's not even really about the affair of Georgina and Michael. It's about Albert, a man who's so polluted to the core that he's blind to his own selfishness and worldly gluttony.
  In fact, Albert has most of the lines in the film (notice how the film sometimes cuts to other people and places when he speaks?). Greenaway is trying to point out that this kind of excessiveness is pure evil, and that anyone who acts remotely like this deserves the sweet justice he receives, like Albert does in the finale (no specifics, I promise). While the stories of the other three protagonists are emotional and intriguing in their own respects, they are merely acting out as people who have been harmed by Albert's selfish gluttony.
What puts the cherry on the top of this film is the way the film feels during and after viewing it. "The Cook, the Thief, His Wife, and Her Lover" is a film that lingers in the memory long after, with scenes and moments stuck in your head. I will never forget the look of the restuarant, the way it's so vast and always filled with life. I can never get the images of Georgina and Michael making love without talking, and the love they share for eachother in the second half after the silence has been broken between them. And the ending is so incredible that it will hold up to any film where a character gets his just desserts as a perfect example of how to do it right and proper.
"The Cook, the Thief, His Wife, and Her Lover" is a film I will never get over seeing. It may be disgusting, vile, and even excessive, but it's a film that will haunt you and never let you forget its message and wild imagery.
MY RATING (out of 4): ****
Homepage at: http://www.geocities.com/Hollywood/Hills/8335/
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rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
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Football: Cologne sack coach Beierlorzer
Cologne sacked coach Achim Beierlorzer in Saturday, a day after their 2-1 loss to visitors Hoffenheim left them 17th in the Bundesliga.
BERLIN: Cologne sacked coach Achim Beierlorzer in Saturday, a day after their 2-1 loss to visitors Hoffenheim left them 17th in the Bundesliga.
Assistants Andre Pawlak and Manfred Schmid will take over, the club said.
Beierlorzer lasted only 11 matches after joining this season from Jahn Regensburg, with Cologne having won just two league games.
"I regret that we are forced to take this step because we value Achim Beierlorzer very much," said Cologne sports director Frank Aehlig in a statement.
"Nevertheless the expected sporting success has not materialised so far and it is our task to give everything we have so that the club reaches its goals."
Cologne, promoted last season, are on seven points, three ahead of bottom club Paderborn and two behind Mainz 05 who sit in the relegation playoff spot.
(Reporting by Karolos Grohmann, editing by Ed Osmond)