pthread_cond_t

pub const pthread_cond_t = switch (native_os) {
    .linux => extern struct {
        data: [48]u8 align(@alignOf(usize)) = @splat(0),
    },
    .driverkit, .ios, .maccatalyst, .macos, .tvos, .visionos, .watchos => extern struct {
        sig: c_long = 0x3CB0B1BB,
        data: [data_len]u8 = @splat(0),
        const data_len = if (@sizeOf(usize) == 8) 40 else 24;
    },
    .freebsd, .dragonfly, .openbsd => extern struct {
        inner: ?*anyopaque = null,
    },
    .hermit => extern struct {
        ptr: usize = maxInt(usize),
    },
    .netbsd => extern struct {
        magic: u32 = 0x55550005,
        lock: pthread_spin_t = 0,
        waiters_first: ?*u8 = null,
        waiters_last: ?*u8 = null,
        mutex: ?*pthread_mutex_t = null,
        private: ?*anyopaque = null,
    },
    .haiku => extern struct {
        flags: u32 = 0,
        unused: i32 = -42,
        mutex: ?*anyopaque = null,
        waiter_count: i32 = 0,
        lock: i32 = 0,
    },
    .illumos => extern struct {
        flag: [4]u8 = @splat(0),
        type: u16 = 0,
        magic: u16 = 0x4356,
        data: u64 = 0,
    },
    .fuchsia, .emscripten => extern struct {
        data: [48]u8 align(@alignOf(usize)) = @splat(0),
    },
    // https://github.com/SerenityOS/serenity/blob/b98f537f117b341788023ab82e0c11ca9ae29a57/Kernel/API/POSIX/sys/types.h#L80-L84
    .serenity => extern struct {
        mutex: ?*pthread_mutex_t = null,
        value: u32 = 0,
        clockid: clockid_t = .REALTIME_COARSE,
    },
    else => void,
}