#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:

src/viewer/svutil.h
src/viewer/svutil.cpp