Botan::Semaphore Class Reference

#include <semaphore.h>

List of all members.

Public Member Functions
void	acquire ()
void	release (size_t n=1)
	Semaphore (int value=0)

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Detailed Description

Definition at line 16 of file semaphore.h.

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Constructor & Destructor Documentation

Botan::Semaphore::Semaphore

(

int

value = 0

)

[inline]

Definition at line 19 of file semaphore.h.

: m_value(value), m_wakeups(0) {}

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Member Function Documentation

void Botan::Semaphore::acquire

(

)

Definition at line 30 of file semaphore.cpp.

   {
   std::unique_lock<std::mutex> lock(m_mutex);
   --m_value;
   if(m_value < 0)
      {
      m_cond.wait(lock, [this] { return m_wakeups > 0; });
      --m_wakeups;
      }
   }

void Botan::Semaphore::release

(

size_t

n = 1

)

Definition at line 14 of file semaphore.cpp.

References n.

   {
   for(size_t i = 0; i != n; ++i)
      {
      std::lock_guard<std::mutex> lock(m_mutex);

      ++m_value;

      if(m_value <= 0)
         {
         ++m_wakeups;
         m_cond.notify_one();
         }
      }
   }

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

• src/lib/utils/semaphore.h
• src/lib/utils/semaphore.cpp