## Coroutine\\Channel->push
向通道中写入数据。
~~~
function Coroutine\Channel->push(mixed $data, float $timeout = -1) : bool;
~~~
<br>
## 参数
* `$data`可以是任意类型的`PHP`变量,包括匿名函数和资源
* 为避免产生歧义,请勿向通道中写入空数据,如`0`、`false`、空字符串、`null`
* `$timeout`设置超时时间,在通道已满的情况下,`push`会挂起当前协程,在约定的时间内,如果没有任何消费者消费数据,将发生超时,底层会恢复当前协程,`push`调用立即返回`false`,写入失败
<br>
## 返回值
* 执行成功返回`true`
* 通道并关闭时,执行失败返回`false`,可使用`$chan->errCode`得到错误码
<br>
## 通道已满
* 自动`yield`当前协程,其他消费者协程`pop`消费数据后,通道可写,将重新`resume`当前协程
* 多个生产者协程同时`push`时,底层自动进行排队,底层会按照顺序逐个`resume`这些生产者协程
<br>
## 通道为空
* 自动唤醒其中一个消费者协程
* 多个消费者协程同时`pop`时,底层自动进行排队,按照顺序逐个`resume`这些消费者协程
- 序章
- 1.环境搭建
- PHP7源码编译安装
- Swoole源码编译安装
- Mysql5.7源码安装
- Redis安装
- 2.搭建Echo服务器
- 3.Server服务器
- 函数列表
- Server::__construct
- Server->set
- Server->on
- Server->start
- Server->send
- WebSocket
- Server->push
- Server->exist
- Server::pack
- Server::unpack
- Server->disconnect
- Server->isEstablished
- 配置选项
- reactor_num
- worker_num
- max_request
- max_conn
- daemonize
- backlog
- log_file
- log_level
- upload_tmp_dir
- http_parse_post
- document_root
- http_compression
- 事件回调函数
- onStart
- onWorkerStart
- onConnect
- onReceive
- onPacket
- onRequest
- 请求Request
- Http\Request->$header
- Http\Request->$server
- Http\Request->$get
- Http\Request->$post
- Http\Request->$cookie
- Http\Request->$files
- Http\Request->rawContent
- Http\Request->getData
- 响应Response
- Http\Response->header
- Http\Response->cookie
- Http\Response->status
- Http\Response->redirect
- Http\Response->write
- Http\Response->sendfile
- Http\Response->end
- Http\Response->detach
- Http\Response::create
- onClose
- onOpen
- onMessage
- 创建服务器
- TCP服务器
- UDP服务器
- HTTP服务器
- WebSocket服务器
- 4.定时器Timer
- 5.进程Process
- Process::__construct
- Process->start
- Process->name
- Process->exec
- Process->write
- Process->read
- Process->setTimeout
- Process->setBlocking
- Process->useQueue
- Process->statQueue
- Process->freeQueue
- Process->push
- Process->pop
- Process->close
- Process->exit
- Process::kill
- Process::wait
- Process::daemon
- Process::signal
- 6.内存Memory
- Table
- Table->__construct
- Table->column
- Table->create
- Table->set
- Table->incr
- Table->decr
- Table->get
- Table->exist
- Table->count
- Table->del
- Channel
- Channel->__construct
- Channel->push
- Channel->pop
- Channel->stats
- 7.协程Coroutine
- Coroutine
- Coroutine::list
- Coroutine::set
- Coroutine::stats
- Coroutine::create
- Coroutine::exist
- Coroutine::getCid
- Coroutine::getContext
- Coroutine::defer
- Coroutine::getBackTrace
- Coroutine::yield
- Coroutine::resume
- Coroutine::fread
- Coroutine::fgets
- Coroutine::fwrite
- Coroutine::sleep
- Coroutine::gethostbyname
- Coroutine::getaddrinfo
- Coroutine::exec
- Coroutine::readFile
- Coroutine::writeFile
- Coroutine::statvfs
- Coroutine::getPcid
- Coroutine\Channel
- Coroutine\Channel->__construct
- Coroutine\Channel->push
- Coroutine\Channel->pop
- Coroutine\Channel->stats
- Coroutine\Channel->close
- Coroutine\Channel->length
- Coroutine\Channel->isEmpty
- Coroutine\Channel->isFull
- Coroutine\Channel->$capacity
- Coroutine\Channel->$errCode
- Coroutine\Client
- Coroutine\Client->connect
- Coroutine\Client->send
- Coroutine\Client->recv
- Coroutine\Client->close
- Coroutine\Client->peek
- Coroutine\Client->set
- Coroutine\Http\Client
- Coroutine\Http\Client->get
- Coroutine\Http\Client->post
- 其他
- 并行和并发的区别
- 堆、栈、队列