futex.c File Reference

#include <kernel/cpu/syscalls.h>
#include <kernel/log/log.h>
#include <kernel/proc/process.h>
#include <kernel/sched/sched.h>
#include <kernel/sched/thread.h>
#include <kernel/sched/timer.h>
#include <kernel/sched/wait.h>
#include <kernel/sync/futex.h>
#include <kernel/sync/lock.h>
#include <kernel/utils/map.h>
#include <errno.h>
#include <stdlib.h>

Go to the source code of this file.

Functions
void	futex_ctx_init (futex_ctx_t *ctx)
	Initialize a per-process futex context.
void	futex_ctx_deinit (futex_ctx_t *ctx)
	Deinitialize a per-process futex context. *.
static futex_t *	futex_ctx_get (futex_ctx_t *ctx, void *addr)
	SYSCALL_DEFINE (SYS_FUTEX, uint64_t, atomic_uint64_t *addr, uint64_t val, futex_op_t op, clock_t timeout)

Function Documentation

futex_ctx_get()

static futex_t * futex_ctx_get ( futex_ctx_t *  ctx, void *  addr  )

static

Definition at line 38 of file futex.c.

References CONTAINER_OF, futex(), futex_ctx_t::futexes, futex_ctx_t::lock, LOCK_SCOPE, malloc(), map_entry_init(), map_get(), map_insert(), map_key_uint64(), NULL, and wait_queue_init().

Referenced by SYSCALL_DEFINE().

SYSCALL_DEFINE()

SYSCALL_DEFINE	(	SYS_FUTEX	,
		uint64_t	,
		atomic_uint64_t *	addr,
		uint64_t	val,
		futex_op_t	op,
		clock_t	timeout
	)

Definition at line 62 of file futex.c.

References CLOCKS_NEVER, EAGAIN, EINVAL, EOK, ERR, errno, futex(), futex_ctx_get(), FUTEX_WAIT, FUTEX_WAKE, process_t::futexCtx, thread_t::id, LOG_DEBUG, NULL, thread_t::process, sched_thread(), process_t::space, thread_load_atomic_from_user(), timer_uptime(), uptime(), wait_block_cancel(), wait_block_commit(), wait_block_setup(), and wait_unblock().