Question

我正在https://github.com/benfleis/samples/blob/master/libuv/stdio/stdio_poll.c查看一个libuv示例并尝试理解它。

我最了解它，但是我在底部的uv_poll_init遇到了一些问题，我找不到任何文档。

有人能指点我一些文件吗？

谢谢！

Answer 1

最新，最新且最好的文档：http://docs.libuv.org/en/latest/

Answer 2

官方文档采用include/uv.h标题文件中的评论形式，该文件为uv_poll_init()提供了以下文档：

使用文件描述符初始化轮询观察器。

然而，可以找到一些涵盖观察者概念的更好的文档here。简而言之：

uv_poll_init(loop, &stdin_watcher, STDIN_FILENO);

初始化stdin_watcher以观察STDIN_FILENO。启动观察程序时，将在loop的上下文中调用其所有回调。

这是程序的基本伪流程：

stdout_cb:
  write whatever is in log_buf to stdout
  stop listening for when I can write to stdout

log:
  write message to log_buf
  have stdout_watcher listen for when its file becomes writeable
    when it becomes writable, stdout_cb will be called

stdint_cb:
  read from stdin
  call log

set_non_blocking:
  set file descriptor as non-blocking

main:
  set stdin/out to nonblocking

  get handle to default event loop
  initialize stdint_watcher, it will listen to stdin and its callback will
    run within the default loop
  initialize stdout_watcher, it will listen to stdout and its callback will
    run within the default loop
  have stdin_watcher listen for when its file becomes readable
    when it becomes readable, stdin_cb will be called
  run the event loop until no more work exists
    in this case, when both watchers are not running (i.e. stopped)

我在哪里可以找到关于uv_poll_init的文档？

2 个答案: