github.com/wasilibs/wazerox@v0.0.0-20240124024944-4923be63ab5f/internal/fsapi/poll.go (about)

     1  package fsapi
     2  
     3  // Pflag are bit flags used for File.Poll. Values, including zero, should not
     4  // be interpreted numerically. Instead, use by constants prefixed with 'POLL'.
     5  //
     6  // # Notes
     7  //
     8  //   - This is like `pollfd.events` flags for `poll` in POSIX. See
     9  //     https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/poll.h.html
    10  type Pflag uint32
    11  
    12  // Only define bitflags we support and are needed by `poll_oneoff` in wasip1
    13  // See https://github.com/WebAssembly/WASI/blob/snapshot-01/phases/snapshot/docs.md#eventrwflags
    14  const (
    15  	// POLLIN is a read event.
    16  	POLLIN Pflag = 1 << iota
    17  
    18  	// POLLOUT is a write event.
    19  	POLLOUT
    20  )