#include "low_level_platform.h"
#include "platform/lf_POSIX_threads_support.h"
#include "platform/lf_unix_clock_support.h"
#include <pthread.h>
#include <errno.h>
#include <stdint.h>
#include <unistd.h>

Functions
int	lf_available_cores ()
	Get the number of cores on the host machine.

int	lf_thread_create (lf_thread_t thread, void (lf_thread)(void ), void *arguments)
	Helper function for creating a thread.

lf_thread_t	lf_thread_self ()
	Return the lf_thread_t of the calling thread.

int	lf_thread_join (lf_thread_t thread, void **thread_return)

int	lf_mutex_init (lf_mutex_t *mutex)

int	lf_mutex_lock (lf_mutex_t *mutex)

int	lf_mutex_unlock (lf_mutex_t *mutex)

int	lf_cond_init (lf_cond_t cond, lf_mutex_t mutex)

int	lf_cond_broadcast (lf_cond_t *cond)

int	lf_cond_signal (lf_cond_t *cond)

int	lf_cond_wait (lf_cond_t *cond)

int	_lf_cond_timedwait (lf_cond_t *cond, instant_t wakeup_time)

Function Documentation

◆ _lf_cond_timedwait()

int _lf_cond_timedwait	(	lf_cond_t *	cond,
		instant_t	wakeup_time )

Block the current thread on the condition variable until the condition variable pointed by "cond" is signaled or the time given by wakeup_time is reached. This should not be used directly as it does not account for clock synchronization offsets. Use lf_clock_cond_timedwait from clock.h instead.

Returns: 0 on success, LF_TIMEOUT on timeout, and platform-specific error number otherwise.

◆ lf_available_cores()

int lf_available_cores ( )

Get the number of cores on the host machine.

◆ lf_cond_broadcast()

int lf_cond_broadcast ( lf_cond_t * cond )

Wake up all threads waiting for condition variable cond.

Returns: 0 on success, platform-specific error number otherwise.

◆ lf_cond_init()

int lf_cond_init	(	lf_cond_t *	cond,
		lf_mutex_t *	mutex )

Initialize a conditional variable.

Returns: 0 on success, platform-specific error number otherwise.

◆ lf_cond_signal()

int lf_cond_signal ( lf_cond_t * cond )

Wake up one thread waiting for condition variable cond.

Returns: 0 on success, platform-specific error number otherwise.

◆ lf_cond_wait()

int lf_cond_wait ( lf_cond_t * cond )

Wait for condition variable "cond" to be signaled or broadcast. The cond->mutex is assumed to be locked when this is called.

Returns: 0 on success, platform-specific error number otherwise.

◆ lf_mutex_init()

int lf_mutex_init ( lf_mutex_t * mutex )

Initialize a mutex.

Returns: 0 on success, platform-specific error number otherwise.

◆ lf_mutex_lock()

int lf_mutex_lock ( lf_mutex_t * mutex )

Lock a mutex.

Returns: 0 on success, platform-specific error number otherwise.

◆ lf_mutex_unlock()

int lf_mutex_unlock ( lf_mutex_t * mutex )

Unlock a mutex.

Returns: 0 on success, platform-specific error number otherwise.

◆ lf_thread_create()

int lf_thread_create	(	lf_thread_t *	thread,
		void (	lf_thread )(void *),
		void *	arguments )

Helper function for creating a thread.

Create a new thread, starting with execution of lf_thread getting passed arguments. The new handle is stored in thread_id.

Returns: 0 on success, platform-specific error number otherwise.

◆ lf_thread_join()

int lf_thread_join	(	lf_thread_t	thread,
		void **	thread_return )

Make calling thread wait for termination of the thread. The exit status of the thread is stored in thread_return if thread_return is not NULL.

Parameters

thread	The thread.
thread_return	A pointer to where to store the exit status of the thread.

Returns: 0 on success, platform-specific error number otherwise.

◆ lf_thread_self()

lf_thread_t lf_thread_self ( )

Return the lf_thread_t of the calling thread.

Functions