/*
*
* pop_back
*
*/
int buf_pop_back(){
if (!initialised) { //sprawdz, czy zainicjalizowane
printf("First initialise!\n");
return -1;
}
sem_proberen(sem_empty);
sem_proberen(sem_mutex);
int retval = queue_pop_back();
sem_verhogen(sem_mutex);
sem_verhogen(sem_full);
return retval;
}
//!
//! This is the function that ultimately dumps a buffer into a log.
//!
//! @param[in] line the string buffer to log
//!
//! @return EUCA_OK on success or EUCA_ERROR on failure
//!
//! @pre The given line pointer must not be NULL.
//!
//! @post The given line is written into the log file
//!
static int log_line(const char *line)
{
int rc = EUCA_ERROR;
FILE *pFh = NULL;
if (log_sem) {
sem_prolaag(log_sem, FALSE);
if ((pFh = get_file(FALSE)) != NULL) {
fprintf(pFh, "%s", line);
fflush(pFh);
release_file();
rc = EUCA_OK;
}
sem_verhogen(log_sem, FALSE);
} else {
if ((pFh = get_file(FALSE)) != NULL) {
fprintf(pFh, "%s", line);
fflush(pFh);
release_file();
rc = EUCA_OK;
}
}
return (rc);
}
//!
//! This is the function that ultimately dumps a buffer into a log.
//!
//! @param[in] line the string buffer to log
//!
//! @return EUCA_OK on success or EUCA_ERROR on failure
//!
static int log_line(const char *line)
{
int rc = EUCA_ERROR;
if (log_sem)
sem_prolaag(log_sem, FALSE);
FILE *file = get_file(FALSE);
if (file != NULL) {
fprintf(file, "%s", line);
fflush(file);
release_file();
rc = EUCA_OK;
}
if (log_sem)
sem_verhogen(log_sem, FALSE);
return rc;
}
// The semaphore decrement (aka lock release) function used throughout.
int sem_v (sem * s)
{
return sem_verhogen (s, TRUE);
}
//!
//! The semaphore decrement (aka lock release) function used throughout.
//!
//! @param[in] pSem a pointer to the semaphore to release
//!
//! @return the result from sem_verhogen()
//!
//! @see sem_verhogen()
//!
int sem_v(sem * pSem)
{
return (sem_verhogen(pSem, TRUE));
}
