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ext-uv/README.md
Bob Weinand c06742a558
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2019-05-03 20:21:32 +02:00

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# php-uv
[![Build Status](https://secure.travis-ci.org/bwoebi/php-uv.png)](http://travis-ci.org/bwoebi/php-uv)
Interface to libuv for php.
# Install
## \*nix
````
git clone https://github.com/bwoebi/php-uv.git
cd php-uv
phpize
./configure
make
make install
# add `extension=uv.so` to your php.ini
````
## Windows
Windows builds for stable PHP versions are available [from PECL](https://pecl.php.net/package/uv).
# Examples
see examples and tests directory.
````php
<?php
$tcp = uv_tcp_init();
uv_tcp_bind($tcp, uv_ip4_addr('0.0.0.0',8888));
uv_listen($tcp,100, function($server){
$client = uv_tcp_init();
uv_accept($server, $client);
var_dump(uv_tcp_getsockname($server));
uv_read_start($client, function($socket, $nread, $buffer){
var_dump($buffer);
uv_close($socket);
});
});
$c = uv_tcp_init();
uv_tcp_connect($c, uv_ip4_addr('0.0.0.0',8888), function($stream, $stat){
if ($stat == 0) {
uv_write($stream,"Hello",function($stream, $stat){
uv_close($stream);
});
}
});
uv_run();
````
# Original Author
* Shuhei Tanuma
# Current Maintainer
* Bob Weinand
# License
PHP License
# Documents
### void uv_unref(resource $uv_t)
##### *Description*
decrement reference
##### *Parameters*
*resource $uv_t*: uv resource handle.
##### *Return Value*
*void *:
##### *Example*
````php
<?php
$tcp = uv_tcp_init();
uv_unref($tcp);
````
### long uv_last_error([resource $uv_loop])
##### *Description*
get last error code.
##### *Parameters*
*resource $uv_loop*: uv loop handle
##### *Return Value*
*long $error_code*: error code
##### *Example*
````php
<?php
$err = uv_last_error();
var_dump($err);
````
### string uv_err_name(long $error_code)
##### *Description*
get error code name.
##### *Parameters*
*long $error_code*: libuv error code
##### *Return Value*
*string $erorr_name*: error name
##### *Example*
````php
<?php
$err = uv_last_error();
var_dump(uv_err_name($err));
````
### string uv_strerror(long $error_code)
##### *Description*
get error message.
##### *Parameters*
*long $error_code*: libuv error code
##### *Return Value*
*string $erorr_message*: error message
##### *Example*
````php
<?php
$err = uv_last_error();
var_dump(uv_strerror($err));
````
### void uv_update_time(resource $uv_loop)
### void uv_ref(resource $uv_handle)
##### *Description*
increment reference count
##### *Parameters*
*resource $uv_handle*: uv resource.
##### *Return Value*
*void*:
##### *Example*
````php
<?php
$tcp = uv_tcp_init();
uv_ref($tcp);
````
##### *TODO*
* support uv_loop resource
### void uv_run([resource $uv_loop])
##### *Description*
run event loop
##### *Parameters*
*resource $uv_loopg*: uv_loop resource
##### *Return Value*
*void*:
##### *Example*
````php
<?php
$loop = uv_default_loop();
$async = uv_async_init($loop, function($async, $status){
var_dump(1);
uv_close($async);
});
uv_async_send($async);
uv_run();
````
### void uv_run_once([resource $uv_loop])
### void uv_loop_delete(resource $uv_loop)
##### *Description*
delete specified loop resource.
##### *Parameters*
*resource $uv_loop*: uv_loop resource
##### *Return Value*
*void*:
##### *Example*
### long uv_now(resource $uv_loop)
### void uv_tcp_bind(resource $uv_tcp, resource $uv_sockaddr)
##### *Description*
binds a name to a socket.
##### *Parameters*
*resource $uv_tcp*: uv_tcp resource
*resource $uv_sockaddr*: uv sockaddr4 resource.
##### *Return Value*
*void*:
##### *Example*
````php
<?php
$tcp = uv_tcp_init();
uv_tcp_bind($tcp, uv_ip4_addr('0.0.0.0',9999));
uv_listen($tcp,100, function($server){
$client = uv_tcp_init();
uv_accept($server, $client);
var_dump(uv_tcp_getsockname($server));
uv_read_start($client, function($socket, $nread, $buffer) use ($server){
var_dump($buffer);
uv_close($socket);
uv_close($server);
});
});
````
### void uv_tcp_bind6(resource $uv_tcp, resource $uv_sockaddr)
##### *Description*
binds a name to a socket.
##### *Parameters*
*resource $uv_tcp*: uv_tcp resource
*resource $uv_sockaddr*: uv sockaddr6 resource.
##### *Return Value*
*void*:
##### *Example*
````php
<?php
$tcp = uv_tcp_init();
uv_tcp_bind6($tcp, uv_ip6_addr('::1',9999));
uv_listen($tcp,100, function($server){
$client = uv_tcp_init();
uv_accept($server, $client);
var_dump(uv_tcp_getsockname($server));
uv_read_start($client, function($socket, $nread, $buffer) use ($server){
var_dump($buffer);
uv_close($socket);
uv_close($server);
});
});
````
### void uv_write(resource $handle, string $data, callable $callback)
##### *Description*
send buffer to speicified uv resource.
##### *Parameters*
*resource $handle*: uv resources (uv_tcp, uv_udp, uv_pipe ...etc.)
*string $data*: buffer.
*callable $callback*: callable variables. this callback expects (resource $handle, long $status)
##### *Return Value*
*void*:
##### *Example*
### void uv_write2(resource $handle, string $data, resource $send, callable $callback)
### void uv_tcp_nodelay(resource $handle, bool $enable)
##### *Description*
set Nagel's flags for specified tcp resource.
##### *Parameters*
*resource $handle*: libuv tcp resource
*bool $enable*: true means enabled. false means disabled.
##### *Return Value*
*void*:
##### *Example*
````php
<?php
$tcp = uv_tcp_init();
uv_tcp_nodelay($tcp, true);
````
### void uv_accept(resource $server, resource $client)
##### *Description*
accepts a connection on a socket.
##### *Parameters*
*resource $uv*: uv_tcp or uv_pipe server resource
*resource $uv*: uv_tcp or uv_pipe client resource.
##### *Return Value*
*void*:
##### *Example*
````php
<?php
$tcp = uv_tcp_init();
uv_tcp_bind($tcp, uv_ip4_addr('0.0.0.0',9999));
uv_listen($tcp,100, function($server){
$client = uv_tcp_init();
uv_accept($server, $client);
var_dump(uv_tcp_getsockname($server));
uv_read_start($client, function($socket, $nread, $buffer) use ($server){
var_dump($buffer);
uv_close($socket);
uv_close($server);
});
});
````
### void uv_shutdown(resource $handle, callable $callback)
##### *Description*
shutdown uv handle.
##### *Parameters*
*resource $handle*: uv resources (uv_tcp, uv_udp, uv_pipe ...etc.)
*callable $callback*: callable variables. this callback expects (resource $handle, long $status)
##### *Return Value*
*void*:
##### *Example*
### void uv_close(resource $handle, callable $callback)
##### *Description*
close uv handle.
##### *Parameters*
*resource $handle*: uv resources (uv_tcp, uv_udp, uv_pipe ...etc.)
*callable $callback*: callable variables. this callback expects (resource $handle, long $status)
##### *Return Value*
*void*:
##### *Example*
### void uv_read_start(resource $handle, callable $callback)
##### *Description*
starts read callback for uv resources.
##### *Parameters*
*resource $handle*: uv resources (uv_tcp, uv_udp, uv_pipe ...etc.)
*callable $callback*: callable variables. this callback parameter expects (resource $handle, long $nread, string buffer)
##### *Return Value*
*void*:
##### *Example*
##### *Note*
* You have to handle erorrs correctly. otherwise this will leak.
* if you want to use PHP's stream or socket resource. see uv_fs_poll_init and uv_fs_read.
### void uv_read2_start(resource $handle, callable $callback)
### void uv_read_stop(resource $handle)
##### *Description*
stop read callback
##### *Parameters*
*resource $uv*: uv resource handle which started uv_read.
##### *Return Value*
*void*:
##### *Example*
````php
<?php
$tcp = uv_tcp_init();
uv_tcp_bind($tcp, uv_ip4_addr('0.0.0.0',9999));
uv_listen($tcp,100, function($server){
$client = uv_tcp_init();
uv_accept($server, $client);
var_dump(uv_tcp_getsockname($server));
uv_read_start($client, function($socket, $nread, $buffer) use ($server){
uv_read_stop($socket);
var_dump($buffer);
uv_close($socket);
uv_close($server);
});
});
````
### resource uv_ip4_addr(string $ipv4_addr, long $port)
##### *Description*
create a ipv4 sockaddr.
##### *Parameters*
*string $ipv4_addr*: ipv4 address
*long $port*: port number.
##### *Return Value*
*resource $uv_sockaddr*: sockaddr resource
##### *Example*
````php
<?php
$sockaddr = uv_ip4_addr("127.0.0.1", 8080);
````
##### *Todo*
* check passed ip address is valid.
* check port number is valid
### resource uv_ip6_addr(string $ipv6_addr, long $port)
##### *Description*
create a ipv6 sockaddr.
##### *Parameters*
*string $ipv6_addr*: ipv6 address
*long $port*: port number.
##### *Return Value*
*resource $uv_sockaddr*: sockaddr resource
##### *Example*
````php
<?php
$sockaddr = uv_ip6_addr("::1", 8080);
````
##### *Todo*
* check passed ip address is valid.
* check port number is valid
### void uv_listen(resource $handle, long $backlog, callable $callback)
##### *Description*
listens for a connection on a uv handle.
##### *Parameters*
*resource $handle*: uv resource handle (tcp, udp and pipe)
*long $backlog*: backlog
*callable $callback*: this callback parameter expects (resource $connection, long $status)
##### *Return Value*
*void *:
##### *Example*
````php
<?php
$tcp = uv_tcp_init();
uv_tcp_bind($tcp, uv_ip4_addr('0.0.0.0',9999));
uv_listen($tcp,100, function($server, $status){
$client = uv_tcp_init();
uv_accept($server, $client);
uv_read_start($client, function($socket, $nread, $buffer) use ($server){
var_dump($buffer);
uv_close($socket);
uv_close($server);
});
});
uv_run();
````
### void uv_tcp_connect(resource $handle, resource $ipv4_addr, callable $callback)
##### *Description*
connect to specified ip address and port.
##### *Parameters*
*resource $handle*: requires `uv_tcp_init()` resource.
*resource $ipv4_addr*: requires uv_sockaddr resource.
*callable $callback*: callable variables.
##### *Return Value*
*void*:
##### *Example*
````php
<?php
$tcp = uv_tcp_init();
uv_tcp_connect($tcp, uv_ip4_addr("127.0.0.1",8080), function($tcp_handle, $status){
uv_close($tcp_handle);
});
uv_run();
````
### void uv_tcp_connect6(resource $handle, resource $ipv6_addr, callable $callback)
##### *Description*
connect to specified ip address and port.
##### *Parameters*
*resource $handle*: requires `uv_tcp_init()` resource.
*resource $ipv4_addr*: requires uv_sockaddr resource.
*callable $callback*: callable variables.
##### *Return Value*
*void*:
##### *Example*
````php
<?php
$tcp = uv_tcp_init();
uv_tcp_connect($tcp, uv_ip6_addr("::1",8080), function($tcp_handle, $status){
uv_close($tcp_handle);
});
uv_run();
````
### resource uv_timer_init([resource $loop])
##### *Description*
initialize timer handle.
##### *Parameters*
*resource $loop*: uv_loop resource.
##### *Return Value*
*resource $timer*: initialized timer resource.
##### *Example*
````php
<?php
$timer = uv_timer_init();
````
### void uv_timer_start(resource $timer, long $timeout, long $repeat, callable $callback)
##### *Description*
initialize timer handle.
##### *Parameters*
*resource $loop*: uv_loop resource.
*long $timeout*: periodical event starts when after this timeout. 1000 is 1 sec.
*long $repeat*: repeat interval. 1000 is 1 sec.
##### *Return Value*
*void:
##### *Example*
````php
<?php
$timer = uv_timer_init();
$after_1_second = 1000;
$period_is_1_second = 1000;
uv_timer_start($timer, $after_1_seconds, $period_is_1_second, function($timer, $status){
echo "Hello\n";
});
uv_run();
````
### void uv_timer_stop(resource $timer)
##### *Description*
stop specified timer.
##### *Parameters*
*resource $timer*: uv timer resource.
##### *Return Value*
*long $retval*:
##### *Example*
````php
<?php
$timer = uv_timer_init();
uv_timer_start($timer, 100, 100, function($timer, $status){
echo "Hello\n";
uv_timer_stop($timer);
});
uv_run();
````
### void uv_timer_again(resource $timer)
##### *Description*
restart timer.
##### *Parameters*
*resource $timer*: uv_timer resource.
##### *Return Value*
*void*:
##### *Example*
### void uv_timer_set_repeat(resource $timer, long $repeat)
##### *Description*
set repeat count.
##### *Parameters*
*resource $uv_timer*: uv_timer resource
*long $repeat*: repeat count
##### *Return Value*
*void*:
##### *Example*
### long uv_timer_get_repeat(resource $timer)
##### *Description*
returns repeat interval.
##### *Parameters*
*resource $uv_timer*: uv_timer resource
##### *Return Value*
*long $repeat_time*:
##### *Example*
### resource uv_idle_init([resource $loop])
##### *Description*
initialize uv idle handle.
##### *Parameters*
*resource $loop*: uv_loop resource.
##### *Return Value*
*resource $idle*: initialized idle handle.
##### *Example*
````php
<?php
$loop = uv_default_loop();
$idle = uv_idle_init($loop);
````
### void uv_idle_start(resource $idle, callable $callback)
##### *Description*
start idle callback.
##### *Parameters*
*resource $idle*: uv_idle resource.
*callable $callback*: idle callback.
##### *Return Value*
*long result*:
##### *Example*
````php
<?php
$loop = uv_default_loop();
$idle = uv_idle_init();
$i = 0;
uv_idle_start($idle, function($idle_handle, $stat) use (&$i){
echo "count: {$i}" . PHP_EOL;
$i++;
if ($i > 3) {
uv_idle_stop($idle);
}
sleep(1);
});
uv_run();
````
### void uv_idle_stop(resource $idle)
##### *Description*
stop idle callback.
##### *Parameters*
*resource $idle*: uv_idle resource.
##### *Return Value*
*long result*:
##### *Example*
````php
<?php
$loop = uv_default_loop();
$idle = uv_idle_init();
$i = 0;
uv_idle_start($idle, function($idle_handle, $stat) use (&$i){
echo "count: {$i}" . PHP_EOL;
$i++;
if ($i > 3) {
uv_idle_stop($idle);
}
sleep(1);
});
uv_run();
````
### void uv_getaddrinfo(resource $loop, callable $callback, string $node, string $service, array $hints)
### resource uv_tcp_init([resource $loop])
##### *Description*
create a tcp socket.
##### *Parameters*
*resource $loop*: loop resource or null. if not specified loop resource then use uv_default_loop resource.
##### *Return Value*
*resource php_uv*: uv resource which initialized for tcp.
##### *Example*
````php
<?php
$tcp = uv_tcp_init();
````
### resource uv_default_loop()
##### *Description*
return default loop handle.
##### *Parameters*
##### *Return Value*
*resource $loop*:
##### *Example*
````php
<?php
$loop = uv_default_loop();
````
### resource uv_loop_new()
##### *Description*
create a new loop handle.
##### *Parameters*
##### *Return Value*
*resource $loop*:
##### *Example*
````php
<?php
$loop = uv_loop_new();
````
### resource uv_udp_init([resource $loop])
##### *Description*
create a udp socket.
##### *Parameters*
*resource $loop*: loop resource or null. if not specified loop resource then use uv_default_loop resource.
##### *Return Value*
*resource php_uv*: uv resource which initialized for udp.
##### *Example*
````php
<?php
$udp = uv_udp_init();
````
### void uv_udp_bind(resource $resource, resource $address, long $flags)
##### *Description*
listens for a connection on a uv udp handle.
##### *Parameters*
*resource $handle*: uv resource handle (udp)
*resource $uv_ip_addr*: uv sockaddr(ipv4) resource.
*long $flags*: unused.
##### *Return Value*
*void *:
##### *Example*
````php
<?php
$udp = uv_udp_init();
var_dump($udp);
uv_udp_bind($udp, uv_ip4_addr('0.0.0.0',10000));
uv_udp_recv_start($udp,function($stream, $nread, $buffer){
echo "recv:" . $buffer;
uv_close($stream);
});
$uv = uv_udp_init();
uv_udp_send($uv, "Hello", uv_ip4_addr("0.0.0.0",10000),function($uv, $s){
echo "success" . PHP_EOL;
uv_close($uv);
});
uv_run();
````
### void uv_udp_bind6(resource $resource, resource $address, long $flags)
##### *Description*
listens for a connection on a uv udp handle.
##### *Parameters*
*resource $handle*: uv resource handle (udp)
*resource $uv_ip_addr*: uv sockaddr(ipv6) resource.
*long $flags*: Should be 0 or UV::UDP_IPV6ONLY
##### *Return Value*
*void *:
##### *Example*
````php
<?php
$udp = uv_udp_init();
var_dump($udp);
uv_udp_bind6($udp, uv_ip6_addr('::1',10000));
uv_udp_recv_start($udp,function($stream, $nread, $buffer){
echo "recv:" . $buffer;
uv_close($stream);
});
$uv = uv_udp_init();
uv_udp_send6($uv, "Hello", uv_ip6_addr("::1",10000),function($uv, $s){
echo "success" . PHP_EOL;
uv_close($uv);
});
uv_run();
````
### void uv_udp_recv_start(resource $handle, callable $callback)
##### *Description*
start receive callback.
##### *Parameters*
*resource $handle*: uv resource handle (udp)
*callable $callback*: this callback parameter expects (resource $stream, long $nread, string $buffer).
##### *Return Value*
*void *:
##### *Example*
````php
<?php
$udp = uv_udp_init();
var_dump($udp);
uv_udp_bind6($udp, uv_ip6_addr('::1',10000));
uv_udp_recv_start($udp,function($stream, $nread, $buffer){
echo "recv:" . $buffer;
uv_close($stream);
});
$uv = uv_udp_init();
uv_udp_send6($uv, "Hello", uv_ip6_addr("::1",10000),function($uv, $s){
echo "success" . PHP_EOL;
uv_close($uv);
});
uv_run();
````
### void uv_udp_recv_stop(resource $handle)
##### *Description*
stop receive callback.
##### *Parameters*
*resource $handle*: uv resource handle (udp)
##### *Return Value*
*void *:
### long uv_udp_set_membership(resource $handle, string $multicast_addr, string $interface_addr, long $membership)
##### *Description*
join or leave udp muticast group..
##### *Parameters*
*resource $handle*: uv resource handle (udp)
*string $multicast_addr*: multicast address
*string $interface_addr*: interface address
*long $membership*: UV::JOIN_GROUP or UV::LEAVE_GROUP
##### *Return Value*
*long *: result code
##### *Example*
### void uv_udp_set_multicast_loop(resource $handle, long $enabled)
##### *Description*
set multicast loop
##### *Parameters*
*resource $handle*: uv resource handle (udp)
*long $enabled*:
##### *Return Value*
*void*:
##### *Example*
### void uv_udp_set_multicast_ttl(resource $handle, long $ttl)
##### *Description*
set multicast ttl
##### *Parameters*
*resource $handle*: uv resource handle (udp)
*long $ttl*: multicast ttl
##### *Return Value*
*void*:
##### *Example*
### void uv_udp_set_broadcast(resource $handle, bool $enabled)
##### *Description*
set udp broadcast
##### *Parameters*
*resource $handle*: uv resource handle (udp)
*long $enabled*:
##### *Return Value*
*void*:
##### *Example*
### void uv_udp_send(resource $handle, string $data, resource $uv_addr, callable $callback)
##### *Description*
send buffer to specified address.
##### *Parameters*
*resource $handle*: uv resource handle (udp)
*string $data*: data
*resource uv_addr*: uv_ip4_addr
*callable $callback*: this callback parameter expects (resource $stream, long $status).
##### *Return Value*
*void *:
##### *Example*
````php
<?php
$udp = uv_udp_init();
var_dump($udp);
uv_udp_bind($udp, uv_ip4_addr('::1',10000));
uv_udp_recv_start($udp,function($stream, $nread, $buffer){
echo "recv:" . $buffer;
uv_close($stream);
});
$uv = uv_udp_init();
uv_udp_send($uv, "Hello", uv_ip4_addr("::1",10000),function($uv, $s){
echo "success" . PHP_EOL;
uv_close($uv);
});
uv_run();
````
### void uv_udp_send6(resource $handle, string $data, resource $uv_addr6, callable $callback)
##### *Description*
send buffer to specified address.
##### *Parameters*
*resource $handle*: uv resource handle (udp)
*string $data*: data
*resource uv_addr*: uv_ip6_addr
*callable $callback*: this callback parameter expects (resource $stream, long $status).
##### *Return Value*
*void *:
##### *Example*
````php
<?php
$udp = uv_udp_init();
var_dump($udp);
uv_udp_bind6($udp, uv_ip6_addr('::1',10000));
uv_udp_recv_start($udp,function($stream, $nread, $buffer){
echo "recv:" . $buffer;
uv_close($stream);
});
$uv = uv_udp_init();
uv_udp_send6($uv, "Hello", uv_ip6_addr("::1",10000),function($uv, $s){
echo "success" . PHP_EOL;
uv_close($uv);
});
uv_run();
````
### bool uv_is_active(resource $handle)
### bool uv_is_readable(resource $handle)
### bool uv_is_writable(resource $handle)
### bool uv_walk(resource $loop, callable $closure[, array $opaque])
##### *TODO*
* implement this.
### long uv_guess_handle(resource $uv)
### long uv_handle_type(resource $uv)
##### *Description*
returns current uv type. (this is not libuv function. util for php-uv)
##### *Parameters*
*resource $uv_handle*: uv_handle
##### *Return Value*
*long $handle_type*: should return UV::IS_UV_* constatns. e.g) UV::IS_UV_TCP
##### *Example*
````php
<?php
$tcp = uv_tcp_init();
var_dump(uv_handle_type($tcp));
````
##### *Note*
* this may change.
### resource uv_pipe_init(resource $loop, long $ipc)
##### *Description*
initialize pipe resource
##### *Parameters*
*resource $uv_loop*: uv_loop resource
*bool $ipc*: when this pipe use for ipc, please set true otherwise false.
##### *Return Value*
*resource $uv_pipe*:
##### *Example*
````php
<?php
$pipe = uv_pipe_init(uv_default_loop(), true);
````
### void uv_pipe_open(resource $handle, long $pipe)
##### *Description*
open a pipe resource.
##### *Parameters*
*resource $uv_handle*: uv pipe handle
*long $pipe: dunnno. maybe file descriptor.
##### *Return Value*
*void*:
##### *Example*
### long uv_pipe_bind(resource $handle, string $name)
##### *Description*
create a named pipe.
##### *Parameters*
*resource $uv_handle*: uv pipe handle
*long $pipe: dunnno. maybe file descriptor.
##### *Return Value*
*void*:
##### *Example*
### void uv_pipe_connect(resource $handle, string $path, callable $callback)
##### *Description*
connect to named pipe.
##### *Parameters*
*resource $uv_handle*: uv pipe handle
*string $path: named pipe path
*callable $callback: this callback parameter expects (resource $pipe, long $status)
##### *Return Value*
*void*:
##### *Example*
````php
<?php
b = uv_pipe_init(uv_default_loop(), 0);
uv_pipe_connect($b, PIPE_PATH, function($a,$b){
uv_write($b,"Hello", function($stream,$stat){
uv_close($stream);
});
});
uv_run();
````
### void uv_pipe_pending_instances(resource $handle, long $count)
### resource uv_ares_init_options(resource $loop, array $options, long $optmask)
### void ares_gethostbyname(resource $handle, string $name, long $flag, callable $callback)
### array uv_loadavg(void)
##### *Description*
retunrs current loadaverage.
##### *Parameters*
##### *Return Value*
*array $loadaverage*:
##### *Example*
````php
<?php
var_dump(uv_loadavg());
//array(3) {
// [0]=>
// float(1.7421875)
// [1]=>
// float(1.427734375)
// [2]=>
// float(1.3955078125)
//}
````
##### *Note*
returns array on windows box. (does not support load average on windows)
### double uv_uptime(void)
##### *Description*
returns current uptime.
##### *Parameters*
##### *Return Value*
*long $uptime*:
##### *Example*
````php
<?php
var_dump(uv_uptime());
//float(1247516)
````
### long uv_get_free_memory(void)
##### *Description*
returns current free memory size.
##### *Parameters*
##### *Return Value*
*long $free*:
##### *Example*
````php
<?php
var_dump(uv_get_free_memory());
//int(135860224)
````
### long uv_get_total_memory(void)
##### *Description*
returns total memory size.
##### *Parameters*
##### *Return Value*
*long $free*:
##### *Example*
````php
<?php
var_dump(uv_get_total_memory());
//int(8589934592)
````
### long uv_hrtime(void)
##### *TODO*
check implmentation
### string uv_exepath(void)
##### *Description*
returns current exepath. basically this will returns current php path.
##### *Parameters*
##### *Return Value*
*string $exepath*:
##### *Example*
````php
<?php
var_dump(uv_exepath());
//string(53) "/Users/chobie/.phpenv/versions/5.4.1-zts-goto/bin/php"
```
### string uv_cwd(void)
##### *Description*
returns current working directory.
##### *Parameters*
##### *Return Value*
*string $cwd*:
##### *Example*
````php
<?php
var_dump(uv_cwd());
//string(24) "/Users/chobie/src/php-uv"
````
### array uv_cpu_info(void)
##### *Description*
returns current cpu informations
.
##### *Parameters*
##### *Return Value*
*array $cpu_info*:
##### *Example*
````php
<?php
var_dump(uv_cpu_info());
//array(8) {
// [0]=>
// array(3) {
// ["model"]=>
// string(13) "MacBookPro8,2"
// ["speed"]=>
// int(2200)
// ["times"]=>
// array(5) {
// ["sys"]=>
// int(69952140)
// ["user"]=>
// int(38153450)
// ["idle"]=>
// int(776709120)
// ["irq"]=>
// int(0)
// ["nice"]=>
// int(0)
// }
// }...
````
### array uv_interface_addresses(void)
### resource uv_stdio_new(zval $fd, long $flags)
### resource uv_spawn(resource $loop, string $command, array $args, array $stdio, string $cwd, array $env = array(), callable $callback [,long $flags, array $options])
### void uv_process_kill(resource $handle, long $signal)
##### *Description*
send signal to specified uv process resource.
##### *Parameters*
*resource $handle*: uv resource handle (process)
*long $signal*:
##### *Return Value*
*void*:
##### *Example*
### void uv_kill(long $pid, long $signal)
##### *Description*
send signal to specified pid.
##### *Parameters*
*long $pid*: process id
*long $signal*:
##### *Return Value*
*void*:
##### *Example*
### bool uv_chdir(string $directory)
##### *Description*
change working directory.
##### *Parameters*
*string $directory*:
##### *Return Value*
*bool *:
##### *Example*
### resource uv_rwlock_init(void)
##### *Description*
initialize rwlock resource
##### *Parameters*
##### *Return Value*
*resource $rwlock*: returns uv rwlock resource
##### *Example*
### uv_rwlock_rdlock(resource $handle)
##### *Description*
set read lock
##### *Parameters*
*resource $handle*: uv resource handle (uv rwlock)
##### *Return Value*
*void *:
##### *Example*
### bool uv_rwlock_tryrdlock(resource $handle)
##### *TODO*
* implemnt this correctly
### void uv_rwlock_rdunlock(resource $handle)
##### *Description*
unlock read lock
##### *Parameters*
*resource $handle*: uv resource handle (uv rwlock)
##### *Return Value*
*void*:
##### *Example*
### uv_rwlock_wrlock(resource $handle)
##### *Description*
set write lock
##### *Parameters*
*resource $handle*: uv resource handle (uv rwlock)
##### *Return Value*
*void *:
##### *Example*
### uv_rwlock_trywrlock(resource $handle)
##### *TODO*
* implement this correctly
### uv_rwlock_wrunlock(resource $handle)
##### *Description*
unlock write lock
##### *Parameters*
*resource $handle*: uv resource handle (uv rwlock)
##### *Return Value*
*void*:
##### *Example*
### uv_lock uv_mutex_init(void)
##### *Description*
initialize mutex resource
##### *Parameters*
##### *Return Value*
*resource $uv_mutex*: uv mutex resource
##### *Example*
### void uv_mutex_lock(uv_lock $lock)
##### *Description*
lock mutex
##### *Parameters*
*resource $handle*: uv resource handle (uv mutex)
##### *Return Value*
*void*:
##### *Example*
### bool uv_mutex_trylock(uv_lock $lock)
##### *TODO*
* implement this correctly
### uv_lock uv_sem_init(long $value)
##### *Description*
initialize semaphore resource
##### *Parameters*
##### *Return Value*
*resource $uv_sem*:
##### *Example*
### void uv_sem_post(uv_lock $sem)
##### *Description*
post semaphore
##### *Parameters*
*resource $handle*: uv resource handle (uv sem)
##### *Return Value*
*void*:
##### *Example*
### void uv_sem_wait(uv_lock $sem)
##### *Todo*
* implemnt this correctly
### void uv_sem_trywait(uv_lock $sem)
##### *Todo*
* implment this correctly
### resource uv_prepare_init(resource $loop)
##### *Description*
initialize prepare resource
##### *Parameters*
*resource $loop*: uv loop handle
##### *Return Value*
*resource $uv_prepare*:
##### *Example*
````php
<?php
$prepare = uv_prepare_init(uv_default_loop());
````
### void uv_prepare_start(resource $handle, callable $callback)
##### *Description*
setup prepare loop callback. (pre loop callback)
##### *Parameters*
*resource $handle*: uv resource handle (prepare)
*callable $callback*: this callback parameter expects (resource $prepare, long $status).
##### *Return Value*
*long *:
##### *Example*
````php
<?php
$loop = uv_default_loop();
$prepare = uv_prepare_init($loop);
uv_prepare_start($prepare, function($rsc, $status){
echo "Hello";
uv_unref($rsc);
});
uv_run();
````
### void uv_prepare_stop(resource $handle)
##### *Description*
stop prepare callback
##### *Parameters*
*resource $prepare*: uv resource handle (prepare)
##### *Return Value*
*long*:
### resource uv_check_init([resource $loop])
##### *Description*
setup check resource
##### *Parameters*
*resource $loop*: uv loop handle
##### *Return Value*
*resource uv_check*:
##### *Example*
````php
<?php
$check = uv_check_init(uv_default_loop());
````
### void uv_check_start(resource $handle, callable $callback)
##### *Description*
stats check loop callback. (after loop callback)
##### *Parameters*
*resource $handle*: uv resource handle (check)
*callable $callback*: this callback parameter expects (resource $check, long $status).
##### *Return Value*
*long *:
##### *Example*
````php
<?php
$loop = uv_default_loop();
$check = uv_check_init($loop);
$idle = uv_idle_init();
$i = 0;
uv_idle_start($idle, function($stat) use (&$i, $idle, $loop){
echo "count: {$i}" . PHP_EOL;
$i++;
if ($i > 3) {
uv_idle_stop($idle);
}
sleep(1);
});
uv_check_start($check, function($check, $status){
echo "Hello";
uv_check_stop($check);
});
uv_run();
````
### void uv_check_stop(resource $handle)
##### *Description*
stop check callback
##### *Parameters*
*resource $check*: uv resource handle (check)
##### *Return Value*
*void *:
### resource uv_async_init(resource $loop, callable $callback)
##### *Description*
setup async callback
##### *Parameters*
*resource $loop*: uv loop resource
*callback $callback*:
##### *Return Value*
*resource *: uv async resource
##### *Example*
### void uv_async_send(resource $handle)
##### *Description*
send async callback immidiately
##### *Parameters*
*resource $handle*: uv async handle
##### *Return Value*
*void*:
##### *Example*
### void uv_queue_work(resource $loop, callable $callback, callable $after_callback)
##### *Description*
execute callbacks in another thread (requires Thread Safe enabled PHP)
### resource uv_fs_open(resource $loop, string $path, long $flag, long $mode, callable $callback)
##### *Description*
open specified file
##### *Parameters*
*resource $loop*: uv_loop resource.
*string $path*: file path
*long $flag*: file flag. this should be UV::O_RDONLY and some constants flag.
*long $mode*: mode flag. this should be UV::S_IRWXU and some mode flag.
*callable $calback*: this callback parameter expects (resource $stream)
##### *Return Value*
*void*:
##### *Example*
````php
<?php
uv_fs_open(uv_default_loop(),"/tmp/hello",
UV::O_WRONLY | UV::O_CREAT | UV::O_APPEND,
UV::S_IRWXU | UV::S_IRUSR,
function($r){
uv_fs_write(uv_default_loop(),$r,"hello",0, function($a) use ($r){
uv_fs_fdatasync(uv_default_loop(),$r,function(){
echo "fsync finished";
});
});
});
uv_run();
````
### void uv_fs_read(resource $loop, zval $fd, long $offset, long $length, callable $callback)
##### *Description*
async read.
##### *Parameters*
*resource $loop*: uv loop handle
*zval $fd*: this expects long $fd, resource $php_stream or resource $php_socket.
*long $offset*: the offset position in the file at which reading should commence.
*long $length*: the length in bytes that should be read starting at position *$offset*.
*resource $callback*: this callback parameter expects (zval $fd, long $nread, string $buffer).
##### *Return Value*
*void *:
### void uv_fs_close(resource $loop, zval $fd, callable $callback)
##### *Description*
close specified file descriptor.
##### *Parameters*
*resource $loop*: uv_loop resource.
*zval $fd*: file descriptor. this expects long $fd, resource $php_stream or resource $php_socket.
*callable $calback*: this callback parameter expects (resource $stream)
##### *Return Value*
*void*:
##### *Example*
##### *todo*
* handling PHP's stream and socket correctly.
### void uv_fs_write(resource $loop, zval $fd, string $buffer, long $offset, callable $callback)
##### *Description*
write buffer to specified file descriptor.
##### *Parameters*
*resource $loop*: uv_loop resource.
*zval $fd*: file descriptor. this expects long $fd, resource $php_stream or resource $php_socket.
*string $buffer*: buffer.
*callable $calback*: this callback parameter expects (resource $stream, long $result)
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_fsync(resource $loop, zval $fd, callable $callback)
##### *Description*
async fsync
##### *Parameters*
*resource $handle*: uv loop handle
*zval $fd*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_fdatasync(resource $loop, zval $fd, callable $callback)
##### *Description*
async fdatasync
##### *Parameters*
*resource $handle*: uv loop handle
*zval $fd*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_ftruncate(resource $loop, zval $fd, long $offset, callable $callback)
##### *Description*
async ftruncate
##### *Parameters*
*resource $handle*: uv loop handle
*zval $fd*:
*long $offset*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_mkdir(resource $loop, string $path, long $mode, callable $callback)
##### *Description*
async mkdir
##### *Parameters*
*resource $handle*: uv loop handle
*string $path*:
*long $mode*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_rmdir(resource $loop, string $path, callable $callback)
##### *Description*
async rmdir
##### *Parameters*
*resource $handle*: uv loop handle
*string $path*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_unlink(resource $loop, string $path, callable $callback)
##### *Description*
async unlink
##### *Parameters*
*resource $handle*: uv loop handle
*string $path*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_rename(resource $loop, string $from, string $to, callable $callback)
##### *Description*
async rename
##### *Parameters*
*resource $handle*: uv loop handle
*string $from*:
*string $to*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_utime(resource $loop, string $path, long $utime, long $atime, callable $callback)
##### *Description*
async utime
##### *Parameters*
*resource $handle*: uv loop handle
*string $path*:
*long $utime*:
*long $atime*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_futime(resource $loop, zval $fd, long $utime, long $atime callable $callback)
##### *Description*
async futime
##### *Parameters*
*resource $handle*: uv loop handle
*zval $fd*:
*long $utime*:
*long $atime*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_chmod(resource $loop, string $path, long $mode, callable $callback)
##### *Description*
async chmod
##### *Parameters*
*resource $handle*: uv loop handle
*string $path*:
*long $mode*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_fchmod(resource $loop, zval $fd, long $mode, callable $callback)
##### *Description*
async fchmod
##### *Parameters*
*resource $handle*: uv loop handle
*zval $fd*:
*long $mode*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_chown(resource $loop, string $path, long $uid, long $gid, callable $callback)
##### *Description*
async chown
##### *Parameters*
*resource $handle*: uv loop handle
*string $paht*:
*long $uid*:
*long $gid*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_fchown(resource $loop, zval $fd, long $uid, $long $gid, callable $callback)
##### *Description*
async fchown
##### *Parameters*
*resource $handle*: uv loop handle
*zval $fd*:
*long $uid*:
*long $gid*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_link(resource $loop, string $from, string $to, callable $callback)
##### *Description*
async link
##### *Parameters*
*resource $handle*: uv loop handle
*string $from*:
*string $to*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_symlink(resource $loop, string $from, string $to, long $flags, callable $callback)
##### *Description*
async symlink
##### *Parameters*
*resource $handle*: uv loop handle
*string $from*:
*string $to*:
*long $flags*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_readlink(resource $loop, string $path, callable $callback)
##### *Description*
async readlink
##### *Parameters*
*resource $handle*: uv loop handle
*string $path*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_stat(resource $loop, string $path, callable $callback)
##### *Description*
async stat
##### *Parameters*
*resource $handle*: uv loop handle
*string $path*:
*callable $callback*: this callback parameter expects (resource $stream, array $stat)
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_lstat(resource $loop, string $path, callable $callback)
##### *Description*
async lstat
##### *Parameters*
*resource $handle*: uv loop handle
*string $path*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_fstat(resource $loop, zval $fd, callable $callback)
##### *Description*
async fstat
##### *Parameters*
*resource $handle*: uv loop handle
*zval $fd*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### uv_fs_readdir(resource $loop, string $path, long $flags, callable $callback)
##### *Description*
async readdir
##### *Parameters*
*resource $handle*: uv loop handle
*string $path*:
*long $flags*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### void uv_fs_sendfile(resource $loop, zval $in_fd, zval $out_fd, long $offset, long $length, callable $callback)
##### *Description*
async sendfile
##### *Parameters*
*resource $handle*: uv loop handle
*zval $in_fd*:
*zval $out_fd*:
*long $offset*:
*long $length*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### resource uv_fs_event_init(resource $loop, string $path, callable $callback, long $flags = 0)
##### *Description*
initialize fs event.
##### *Parameters*
*resource $handle*: uv loop handle
*string $path*:
*callable $callback*:
##### *Return Value*
*void*:
##### *Example*
### resource uv_tty_init(resource $loop, zval $fd, long $readable)
##### *Description*
initialize tty resource. you have to open tty your hand.
##### *Parameters*
*resource $handle*: uv loop handle
*zval $fd*:
*long $readable*:
##### *Return Value*
*resource $uv_tty*:
##### *Example*
### long uv_tty_get_winsize(resource $tty, long &$width, long &$height)
### long uv_tty_set_mode(resource $tty, long $mode)
### void uv_tty_reset_mode(void)
### string uv_tcp_getsockname(resource $uv_sockaddr)
### string uv_tcp_getpeername(resource $uv_sockaddr)
### string uv_udp_getsockname(resource $uv_sockaddr)
### long uv_resident_set_memory(void)
### string uv_ip4_name(resource uv_sockaddr $address)
### string uv_ip6_name(resource uv_sockaddr $address)
### uv uv_poll_init([resource $uv_loop], zval fd)
##### *Description*
initialize poll
##### *Parameters*
*resource $uv_loop*: uv_loop resource.
*mixed $fd*: this expects long fd, PHP's stream or PHP's socket resource.
##### *Return Value*
*resource uv*: uv resource which initialized poll.
##### *Example*
````php
<?php
$fd = fopen("php://stdout","w+");
$poll = uv_poll_init(uv_default_loop(), $fd);
````
##### *Note*
* some platform doesn't support file descriptor on these method.
### uv uv_poll_start(resource $handle, $events, $callback)
##### *Description*
start polling
##### *Parameters*
*resource $poll*: uv poll resource.
*long $events*: UV::READBLE and UV::WRITABLE flags.
*callable $callback*: this callback parameter expects (resource $poll, long $status, long $events, mixed $connection). the connection parameter passes uv_poll_init'd fd.
##### *Return Value*
*void*:
##### *Example*
````php
<?php
$fd = fopen("php://stdout","w+");
$poll = uv_poll_init(uv_default_loop(), $fd);
uv_poll_start($poll, UV::WRITABLE, function($poll, $stat, $ev, $conn){
fwrite($conn, "Hello");
fclose($conn);
uv_poll_stop($poll);
});
uv_run();
````
##### *Note*
* if you want to use a socket. please use uv_poll_init_socket instead of this. Windows can't handle socket with this function.
### void uv_poll_stop(resource $poll)
### uv uv_fs_poll_init([resource $uv_loop])
### uv uv_fs_poll_start(resource $handle, $callback, string $path, long $interval)
### void uv_fs_poll_stop(resource $poll)
### void uv_stop([resource $uv_loop])
##### *Description*
##### *Parameters*
*resource $uv_loop*: uv loop handle
##### *Return Value*
*void*:
##### *Example*
### resource uv_signal_init([resource $uv_loop])
##### *Description*
##### *Parameters*
*resource $uv_loop*: uv loop handle
##### *Return Value*
*resource*:
##### *Example*
### void uv_signal_start(resource $sig_handle, callable $sig_callback, int $sig_num)
##### *Description*
##### *Parameters*
*resource $sig_handle*:
*callable $callable*: signal callback
*int $sig_num*: signal
##### *Return Value*
*void*:
##### *Example*
### int uv_signal_stop(resource $sig_handle)
##### *Description*
##### *Parameters*
*resource $sig_handle*:
##### *Return Value*
*int $sig_num*:
##### *Example*
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