rust/src/libstd/sys/unix/sync.rs
2015-01-09 18:38:30 +02:00

215 lines
7.3 KiB
Rust

// Copyright 2014-2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#![allow(bad_style)]
use libc;
pub use self::os::{PTHREAD_MUTEX_INITIALIZER, pthread_mutex_t};
pub use self::os::{PTHREAD_COND_INITIALIZER, pthread_cond_t};
pub use self::os::{PTHREAD_RWLOCK_INITIALIZER, pthread_rwlock_t};
extern {
// mutexes
pub fn pthread_mutex_destroy(lock: *mut pthread_mutex_t) -> libc::c_int;
pub fn pthread_mutex_lock(lock: *mut pthread_mutex_t) -> libc::c_int;
pub fn pthread_mutex_trylock(lock: *mut pthread_mutex_t) -> libc::c_int;
pub fn pthread_mutex_unlock(lock: *mut pthread_mutex_t) -> libc::c_int;
// cvars
pub fn pthread_cond_wait(cond: *mut pthread_cond_t,
lock: *mut pthread_mutex_t) -> libc::c_int;
pub fn pthread_cond_timedwait(cond: *mut pthread_cond_t,
lock: *mut pthread_mutex_t,
abstime: *const libc::timespec) -> libc::c_int;
pub fn pthread_cond_signal(cond: *mut pthread_cond_t) -> libc::c_int;
pub fn pthread_cond_broadcast(cond: *mut pthread_cond_t) -> libc::c_int;
pub fn pthread_cond_destroy(cond: *mut pthread_cond_t) -> libc::c_int;
pub fn gettimeofday(tp: *mut libc::timeval,
tz: *mut libc::c_void) -> libc::c_int;
// rwlocks
pub fn pthread_rwlock_destroy(lock: *mut pthread_rwlock_t) -> libc::c_int;
pub fn pthread_rwlock_rdlock(lock: *mut pthread_rwlock_t) -> libc::c_int;
pub fn pthread_rwlock_tryrdlock(lock: *mut pthread_rwlock_t) -> libc::c_int;
pub fn pthread_rwlock_wrlock(lock: *mut pthread_rwlock_t) -> libc::c_int;
pub fn pthread_rwlock_trywrlock(lock: *mut pthread_rwlock_t) -> libc::c_int;
pub fn pthread_rwlock_unlock(lock: *mut pthread_rwlock_t) -> libc::c_int;
}
#[cfg(any(target_os = "freebsd", target_os = "dragonfly"))]
mod os {
use libc;
pub type pthread_mutex_t = *mut libc::c_void;
pub type pthread_cond_t = *mut libc::c_void;
pub type pthread_rwlock_t = *mut libc::c_void;
pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = 0 as *mut _;
pub const PTHREAD_COND_INITIALIZER: pthread_cond_t = 0 as *mut _;
pub const PTHREAD_RWLOCK_INITIALIZER: pthread_rwlock_t = 0 as *mut _;
}
#[cfg(any(target_os = "macos", target_os = "ios"))]
mod os {
use libc;
#[cfg(any(target_arch = "x86_64",
target_arch = "aarch64"))]
const __PTHREAD_MUTEX_SIZE__: uint = 56;
#[cfg(any(target_arch = "x86",
target_arch = "arm"))]
const __PTHREAD_MUTEX_SIZE__: uint = 40;
#[cfg(any(target_arch = "x86_64",
target_arch = "aarch64"))]
const __PTHREAD_COND_SIZE__: uint = 40;
#[cfg(any(target_arch = "x86",
target_arch = "arm"))]
const __PTHREAD_COND_SIZE__: uint = 24;
#[cfg(any(target_arch = "x86_64",
target_arch = "aarch64"))]
const __PTHREAD_RWLOCK_SIZE__: uint = 192;
#[cfg(any(target_arch = "x86",
target_arch = "arm"))]
const __PTHREAD_RWLOCK_SIZE__: uint = 124;
const _PTHREAD_MUTEX_SIG_INIT: libc::c_long = 0x32AAABA7;
const _PTHREAD_COND_SIG_INIT: libc::c_long = 0x3CB0B1BB;
const _PTHREAD_RWLOCK_SIG_INIT: libc::c_long = 0x2DA8B3B4;
#[repr(C)]
pub struct pthread_mutex_t {
__sig: libc::c_long,
__opaque: [u8; __PTHREAD_MUTEX_SIZE__],
}
#[repr(C)]
pub struct pthread_cond_t {
__sig: libc::c_long,
__opaque: [u8; __PTHREAD_COND_SIZE__],
}
#[repr(C)]
pub struct pthread_rwlock_t {
__sig: libc::c_long,
__opaque: [u8; __PTHREAD_RWLOCK_SIZE__],
}
pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = pthread_mutex_t {
__sig: _PTHREAD_MUTEX_SIG_INIT,
__opaque: [0; __PTHREAD_MUTEX_SIZE__],
};
pub const PTHREAD_COND_INITIALIZER: pthread_cond_t = pthread_cond_t {
__sig: _PTHREAD_COND_SIG_INIT,
__opaque: [0; __PTHREAD_COND_SIZE__],
};
pub const PTHREAD_RWLOCK_INITIALIZER: pthread_rwlock_t = pthread_rwlock_t {
__sig: _PTHREAD_RWLOCK_SIG_INIT,
__opaque: [0; __PTHREAD_RWLOCK_SIZE__],
};
}
#[cfg(target_os = "linux")]
mod os {
use libc;
// minus 8 because we have an 'align' field
#[cfg(target_arch = "x86_64")]
const __SIZEOF_PTHREAD_MUTEX_T: uint = 40 - 8;
#[cfg(any(target_arch = "x86",
target_arch = "arm",
target_arch = "mips",
target_arch = "mipsel"))]
const __SIZEOF_PTHREAD_MUTEX_T: uint = 24 - 8;
#[cfg(target_arch = "aarch64")]
const __SIZEOF_PTHREAD_MUTEX_T: uint = 48 - 8;
#[cfg(any(target_arch = "x86_64",
target_arch = "x86",
target_arch = "arm",
target_arch = "aarch64",
target_arch = "mips",
target_arch = "mipsel"))]
const __SIZEOF_PTHREAD_COND_T: uint = 48 - 8;
#[cfg(any(target_arch = "x86_64",
target_arch = "aarch64"))]
const __SIZEOF_PTHREAD_RWLOCK_T: uint = 56 - 8;
#[cfg(any(target_arch = "x86",
target_arch = "arm",
target_arch = "mips",
target_arch = "mipsel"))]
const __SIZEOF_PTHREAD_RWLOCK_T: uint = 32 - 8;
#[repr(C)]
pub struct pthread_mutex_t {
__align: libc::c_longlong,
size: [u8; __SIZEOF_PTHREAD_MUTEX_T],
}
#[repr(C)]
pub struct pthread_cond_t {
__align: libc::c_longlong,
size: [u8; __SIZEOF_PTHREAD_COND_T],
}
#[repr(C)]
pub struct pthread_rwlock_t {
__align: libc::c_longlong,
size: [u8; __SIZEOF_PTHREAD_RWLOCK_T],
}
pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = pthread_mutex_t {
__align: 0,
size: [0; __SIZEOF_PTHREAD_MUTEX_T],
};
pub const PTHREAD_COND_INITIALIZER: pthread_cond_t = pthread_cond_t {
__align: 0,
size: [0; __SIZEOF_PTHREAD_COND_T],
};
pub const PTHREAD_RWLOCK_INITIALIZER: pthread_rwlock_t = pthread_rwlock_t {
__align: 0,
size: [0; __SIZEOF_PTHREAD_RWLOCK_T],
};
}
#[cfg(target_os = "android")]
mod os {
use libc;
#[repr(C)]
pub struct pthread_mutex_t { value: libc::c_int }
#[repr(C)]
pub struct pthread_cond_t { value: libc::c_int }
#[repr(C)]
pub struct pthread_rwlock_t {
lock: pthread_mutex_t,
cond: pthread_cond_t,
numLocks: libc::c_int,
writerThreadId: libc::c_int,
pendingReaders: libc::c_int,
pendingWriters: libc::c_int,
reserved: [*mut libc::c_void; 4],
}
pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = pthread_mutex_t {
value: 0,
};
pub const PTHREAD_COND_INITIALIZER: pthread_cond_t = pthread_cond_t {
value: 0,
};
pub const PTHREAD_RWLOCK_INITIALIZER: pthread_rwlock_t = pthread_rwlock_t {
lock: PTHREAD_MUTEX_INITIALIZER,
cond: PTHREAD_COND_INITIALIZER,
numLocks: 0,
writerThreadId: 0,
pendingReaders: 0,
pendingWriters: 0,
reserved: [0 as *mut _; 4],
};
}