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This is an example of documentation generated by ZigDoc, an alternative to Zig's built-in Auto Doc feature. See also examples in other modes/formats. The project being documented here (as the example) is the Zig standard library. Public Function

poll

Public Function
std.posix.poll
pub fn poll(fds: []pollfd, timeout: i32) PollError!usize

Params

File

posix.zig:1003
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pub fn poll(fds: []pollfd, timeout: i32) PollError!usize {
    if (native_os == .windows) {
        @compileError("use std.Io instead");
    }
    while (true) {
        const fds_count = cast(nfds_t, fds.len) orelse return error.SystemResources;
        const rc = system.poll(fds.ptr, fds_count, timeout);
        switch (errno(rc)) {
            .SUCCESS => return @intCast(rc),
            .FAULT => unreachable,
            .INTR => continue,
            .INVAL => unreachable,
            .NOMEM => return error.SystemResources,
            else => |err| return unexpectedErrno(err),
        }
    }
    unreachable;
}