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#ifndef _3DS_PTHREAD_WRAP__
#define _3DS_PTHREAD_WRAP__
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "3ds_utils.h"
#define CTR_PTHREAD_STACK_SIZE 0x10000
#define FALSE 0
typedef struct {
uint32_t semaphore;
LightLock lock;
uint32_t waiting;
} cond_t;
#if !defined(PTHREAD_SCOPE_PROCESS)
/* An earlier version of devkitARM does not define the pthread types. Can remove in r54+. */
typedef uint32_t pthread_t;
typedef int pthread_attr_t;
typedef LightLock pthread_mutex_t;
typedef int pthread_mutexattr_t;
typedef uint32_t pthread_cond_t;
typedef int pthread_condattr_t;
#endif
static inline int pthread_create(pthread_t *thread,
const pthread_attr_t *attr, void *(*start_routine)(void*), void *arg)
{
int procnum = -2; // use default cpu
bool isNew3DS;
APT_CheckNew3DS(&isNew3DS);
if (isNew3DS)
procnum = 2;
*thread = threadCreate(start_routine, arg, CTR_PTHREAD_STACK_SIZE, 0x25, procnum, FALSE);
return 0;
}
static inline int pthread_join(pthread_t thread, void **retval)
{
(void)retval;
if(threadJoin(thread, INT64_MAX))
return -1;
threadFree(thread);
return 0;
}
static inline void pthread_exit(void *retval)
{
(void)retval;
threadExit(0);
}
static inline int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr) {
LightLock_Init(mutex);
return 0;
}
static inline int pthread_mutex_lock(pthread_mutex_t *mutex) {
LightLock_Lock(mutex);
return 0;
}
static inline int pthread_mutex_unlock(pthread_mutex_t *mutex) {
LightLock_Unlock(mutex);
return 0;
}
static inline int pthread_mutex_destroy(pthread_mutex_t *mutex) {
return 0;
}
static inline int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr) {
cond_t *cond_data = calloc(1, sizeof(cond_t));
if (!cond_data)
goto error;
if (svcCreateSemaphore(&cond_data->semaphore, 0, 1))
goto error;
LightLock_Init(&cond_data->lock);
cond_data->waiting = 0;
*cond = cond_data;
return 0;
error:
svcCloseHandle(cond_data->semaphore);
if (cond_data)
free(cond_data);
return -1;
}
static inline int pthread_cond_signal(pthread_cond_t *cond) {
int32_t count;
cond_t *cond_data = (cond_t *)*cond;
LightLock_Lock(&cond_data->lock);
if (cond_data->waiting) {
cond_data->waiting--;
svcReleaseSemaphore(&count, cond_data->semaphore, 1);
}
LightLock_Unlock(&cond_data->lock);
return 0;
}
static inline int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *lock) {
cond_t *cond_data = (cond_t *)*cond;
LightLock_Lock(&cond_data->lock);
cond_data->waiting++;
LightLock_Unlock(lock);
LightLock_Unlock(&cond_data->lock);
svcWaitSynchronization(cond_data->semaphore, INT64_MAX);
LightLock_Lock(lock);
return 0;
}
static inline int pthread_cond_destroy(pthread_cond_t *cond) {
if (*cond) {
cond_t *cond_data = (cond_t *)*cond;
svcCloseHandle(cond_data->semaphore);
free(*cond);
}
*cond = 0;
return 0;
}
#endif //_3DS_PTHREAD_WRAP__
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