mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
eeb20775d2
This will help C++ code that uses exceptions to be tinier. For example, this change shaves away 1000 lines of assembly code from LLVM's libcxx, which is 0.7% of all assembly instructions in the entire library.
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
#ifndef COSMOPOLITAN_LIBC_CALLS_SEMAPHORE_H_
|
|
#define COSMOPOLITAN_LIBC_CALLS_SEMAPHORE_H_
|
|
#include "libc/calls/struct/timespec.h"
|
|
COSMOPOLITAN_C_START_
|
|
|
|
#define SEM_FAILED ((sem_t *)0)
|
|
#define SEM_MAGIC_NAMED 0xDEADBEEFu
|
|
#define SEM_MAGIC_UNNAMED 0xFEEDABEEu
|
|
#define SEM_MAGIC_KERNEL 0xCAFEBABEu
|
|
|
|
typedef struct {
|
|
union {
|
|
struct {
|
|
_Atomic(int) sem_value;
|
|
_Atomic(int) sem_waiters;
|
|
_Atomic(int) sem_prefs; /* named only */
|
|
unsigned sem_magic;
|
|
int64_t sem_dev; /* named only */
|
|
int64_t sem_ino; /* named only */
|
|
int sem_pid; /* unnamed only */
|
|
char sem_lazydelete; /* named only */
|
|
char sem_pshared;
|
|
int *sem_kernel;
|
|
};
|
|
void *sem_space[32];
|
|
};
|
|
} sem_t;
|
|
|
|
int sem_init(sem_t *, int, unsigned) libcesque;
|
|
int sem_destroy(sem_t *) libcesque;
|
|
int sem_post(sem_t *) libcesque;
|
|
int sem_wait(sem_t *) libcesque;
|
|
int sem_trywait(sem_t *) libcesque;
|
|
int sem_timedwait(sem_t *, const struct timespec *) libcesque;
|
|
int sem_getvalue(sem_t *, int *) libcesque;
|
|
sem_t *sem_open(const char *, int, ...) libcesque;
|
|
int sem_close(sem_t *) libcesque;
|
|
int sem_unlink(const char *) libcesque;
|
|
|
|
COSMOPOLITAN_C_END_
|
|
#endif /* COSMOPOLITAN_LIBC_CALLS_SEMAPHORE_H_ */
|