42 lines
858 B
C
42 lines
858 B
C
#include <kernel/futex.h>
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#include <kernel/sched.h>
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#include <kernel/syscall.h>
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#include <kernel/task.h>
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kern_status_t sys_futex_wait(
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kern_futex_t *futex,
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kern_futex_t new_val,
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unsigned int flags)
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{
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struct task *self = get_current_task();
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if (!validate_access_r(self, futex, sizeof *futex)) {
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put_current_task(self);
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return KERN_MEMORY_FAULT;
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}
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futex_key_t key;
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kern_status_t status = futex_get(futex, &key, flags);
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if (status != KERN_OK) {
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put_current_task(self);
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return status;
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}
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status = futex_wait(key, new_val, flags);
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put_current_task(self);
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return status;
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}
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kern_status_t sys_futex_wake(
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kern_futex_t *futex,
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unsigned int nr_waiters,
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unsigned int flags)
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{
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futex_key_t key;
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kern_status_t status = futex_get(futex, &key, flags);
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if (status != KERN_OK) {
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return status;
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}
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return futex_wake(key, nr_waiters, flags);
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}
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