bool_t osCreateSemaphore(OsSemaphore *semaphore, uint_t count)
{
//Create a semaphore
OS_CreateCSema(semaphore, count);
//The event object was successfully created
return TRUE;
}
/*--------------------------------------------
| Name: kernel_sem_init
| Description:
| Parameters: none
| Return Type: none
| Comments:
| See:
----------------------------------------------*/
int kernel_sem_init(kernel_sem_t* kernel_sem, int pshared, unsigned int value){
if(!kernel_sem)
return -1;
#ifdef __KERNEL_UCORE_EMBOS
OS_CreateCSema(&kernel_sem->sem,(char)value);
#endif
return 0;
}
/*
* Create a new semaphore and initialize it.
* If no memory is available return NULL
*/
sys_sem_t sys_sem_new(u8_t count)
{
OS_CSEMA* p_sem = (OS_CSEMA*)malloc(sizeof(OS_CSEMA));
/* out of memory? */
if(!p_sem)
return SYS_SEM_NULL;
OS_CreateCSema(p_sem,count);
return p_sem;
}
/*-----------------------------------------------------------------------------------
* Creates and returns a new semaphore. The "count" argument specifies
* the initial state of the semaphore. TBD finish and test
*/
err_t sys_sem_new( /*@special@*/ /*@out@*/ sys_sem_t *sem, u8_t count) /*@allocates *sem@*/
{
if ( sem == NULL )
{
/*@-mustdefine@*/ /*@-compdef@*/ /* do not need to allocate or set *sem */
return ERR_VAL;
/*@+mustdefine@*/ /*@+compdef@*/
}
*sem = malloc_named("sys_sem_new", sizeof(OS_CSEMA));
// I am not sure but was protected in the orignal freertos code
OS_EnterRegion();
if ( count == (u8_t) 0 ) /* Means it can't be taken */
{
OS_CREATECSEMA(*sem);
}
else
{
OS_CreateCSema(*sem, count);
}
OS_LeaveRegion();
/*@-compdef@*/ /* Lint doesnt realise allocation has occurred */
return ERR_OK;
/*@+compdef@*/
}
