7#ifndef __LIBCAMERA_BASE_SEMAPHORE_H__
8#define __LIBCAMERA_BASE_SEMAPHORE_H__
10#include <condition_variable>
12#include <libcamera/base/private.h>
23 void acquire(
unsigned int n = 1);
25 void release(
unsigned int n = 1);
29 std::condition_variable cv_;
30 unsigned int available_;
General-purpose counting semaphore.
Definition: semaphore.h:18
bool tryAcquire(unsigned int n=1)
Try to acquire n resources without blocking.
Definition: semaphore.cpp:75
Semaphore(unsigned int n=0)
Construct a semaphore with n resources.
Definition: semaphore.cpp:34
unsigned int available()
Retrieve the number of available resources.
Definition: semaphore.cpp:43
void acquire(unsigned int n=1)
Acquire n resources.
Definition: semaphore.cpp:57
void release(unsigned int n=1)
Release n resources.
Definition: semaphore.cpp:93
Top-level libcamera namespace.
Definition: backtrace.h:17
std::mutex Mutex
An alias for std::mutex.
Definition: thread.h:29