#include <svutil.h>

Public Member Functions
	SVSemaphore ()
	Sets up a semaphore. More...

	~SVSemaphore ()
	Cleans up the mutex. More...

void	Signal ()
	Signal a semaphore. More...

void	Wait ()
	Wait on a semaphore. More...

Detailed Description

A semaphore class which encapsulates the main signaling and wait abilities of semaphores for windows and unix.

Definition at line 46 of file svutil.h.

Constructor & Destructor Documentation

◆ SVSemaphore()

tesseract::SVSemaphore::SVSemaphore ( )

Sets up a semaphore.

Definition at line 118 of file svutil.cpp.

                         {
#  ifdef _WIN32
  semaphore_ = CreateSemaphore(0, 0, 10, 0);
#  elif defined(__APPLE__)
  auto name = std::to_string(random());
  sem_unlink(name.c_str());
  semaphore_ = sem_open(name.c_str(), O_CREAT, S_IWUSR, 0);
  if (semaphore_ == SEM_FAILED) {
    perror("sem_open");
  }
#  else
  sem_init(&semaphore_, 0, 0);
#  endif
}

◆ ~SVSemaphore()

tesseract::SVSemaphore::~SVSemaphore ( )

Cleans up the mutex.

Definition at line 133 of file svutil.cpp.

                          {
#  ifdef _WIN32
  CloseHandle(semaphore_);
#  elif defined(__APPLE__)
  sem_close(semaphore_);
#  else
  sem_close(&semaphore_);
#  endif
}

Member Function Documentation

◆ Signal()

void tesseract::SVSemaphore::Signal ( )

Signal a semaphore.

Definition at line 143 of file svutil.cpp.

                         {
#  ifdef _WIN32
  ReleaseSemaphore(semaphore_, 1, nullptr);
#  elif defined(__APPLE__)
  sem_post(semaphore_);
#  else
  sem_post(&semaphore_);
#  endif
}

◆ Wait()

void tesseract::SVSemaphore::Wait ( )

Wait on a semaphore.

Definition at line 153 of file svutil.cpp.

                       {
#  ifdef _WIN32
  WaitForSingleObject(semaphore_, INFINITE);
#  elif defined(__APPLE__)
  sem_wait(semaphore_);
#  else
  sem_wait(&semaphore_);
#  endif
}

The documentation for this class was generated from the following files:

/media/home/debian/src/github/tesseract-ocr/tesseract/src/viewer/svutil.h
/media/home/debian/src/github/tesseract-ocr/tesseract/src/viewer/svutil.cpp