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tsem_xxx for mac

This commit is contained in:
freemine 2021-01-23 08:45:44 +08:00
parent 94eb0e1e71
commit 4e774660b6
1 changed files with 72 additions and 16 deletions
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88
src/os/src/darwin/darwinSemphone.c
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@ -16,25 +16,81 @@
#define _DEFAULT_SOURCE
#include "os.h"
int tsem_init(dispatch_semaphore_t *sem, int pshared, unsigned int value) {
*sem = dispatch_semaphore_create(value);
if (*sem == NULL) {
return -1;
} else {
struct tsem_s {
dispatch_semaphore_t sem;
volatile unsigned int valid:1;
};
int tsem_wait(tsem_t *sem);
int tsem_post(tsem_t *sem);
int tsem_destroy(tsem_t *sem);
int tsem_init(tsem_t *sem, int pshared, unsigned int value) {
fprintf(stderr, "==%s[%d]%s():[%p]==creating\n", basename(__FILE__), __LINE__, __func__, sem);
if (*sem) {
fprintf(stderr, "==%s[%d]%s():[%p]==already initialized\n", basename(__FILE__), __LINE__, __func__, sem);
abort();
}
struct tsem_s *p = (struct tsem_s*)calloc(1, sizeof(*p));
if (!p) {
fprintf(stderr, "==%s[%d]%s():[%p]==out of memory\n", basename(__FILE__), __LINE__, __func__, sem);
abort();
}
p->sem = dispatch_semaphore_create(value);
if (p->sem == NULL) {
fprintf(stderr, "==%s[%d]%s():[%p]==not created\n", basename(__FILE__), __LINE__, __func__, sem);
abort();
}
p->valid = 1;
*sem = p;
return 0;
}
int tsem_wait(tsem_t *sem) {
if (!*sem) {
fprintf(stderr, "==%s[%d]%s():[%p]==not initialized\n", basename(__FILE__), __LINE__, __func__, sem);
abort();
}
struct tsem_s *p = *sem;
if (!p->valid) {
fprintf(stderr, "==%s[%d]%s():[%p]==already destroyed\n", basename(__FILE__), __LINE__, __func__, sem);
abort();
}
return dispatch_semaphore_wait(p->sem, DISPATCH_TIME_FOREVER);
}
int tsem_post(tsem_t *sem) {
if (!*sem) {
fprintf(stderr, "==%s[%d]%s():[%p]==not initialized\n", basename(__FILE__), __LINE__, __func__, sem);
abort();
}
struct tsem_s *p = *sem;
if (!p->valid) {
fprintf(stderr, "==%s[%d]%s():[%p]==already destroyed\n", basename(__FILE__), __LINE__, __func__, sem);
abort();
}
return dispatch_semaphore_signal(p->sem);
}
int tsem_destroy(tsem_t *sem) {
fprintf(stderr, "==%s[%d]%s():[%p]==destroying\n", basename(__FILE__), __LINE__, __func__, sem);
if (!*sem) {
fprintf(stderr, "==%s[%d]%s():[%p]==not initialized\n", basename(__FILE__), __LINE__, __func__, sem);
abort();
return 0;
}
}
struct tsem_s *p = *sem;
if (!p->valid) {
fprintf(stderr, "==%s[%d]%s():[%p]==already destroyed\n", basename(__FILE__), __LINE__, __func__, sem);
abort();
}
int tsem_wait(dispatch_semaphore_t *sem) {
dispatch_semaphore_wait(*sem, DISPATCH_TIME_FOREVER);
p->valid = 0;
free(p);
*sem = NULL;
return 0;
}
int tsem_post(dispatch_semaphore_t *sem) {
dispatch_semaphore_signal(*sem);
return 0;
}
int tsem_destroy(dispatch_semaphore_t *sem) {
return 0;
}