74 lines
1.4 KiB
C++
74 lines
1.4 KiB
C++
// Copyright 2016 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#pragma once
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#ifdef _WIN32
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#include <Windows.h>
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namespace Common
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{
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class Semaphore
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{
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public:
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Semaphore(int initial_count, int maximum_count)
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{
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m_handle = CreateSemaphoreA(nullptr, initial_count, maximum_count, nullptr);
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}
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~Semaphore() { CloseHandle(m_handle); }
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void Wait() { WaitForSingleObject(m_handle, INFINITE); }
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void Post() { ReleaseSemaphore(m_handle, 1, nullptr); }
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private:
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HANDLE m_handle;
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};
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} // namespace Common
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#elif defined(__APPLE__)
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#include <dispatch/dispatch.h>
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namespace Common
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{
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class Semaphore
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{
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public:
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Semaphore(int initial_count, int maximum_count)
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{
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m_handle = dispatch_semaphore_create(0);
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for (int i = 0; i < initial_count; i++)
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dispatch_semaphore_signal(m_handle);
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}
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~Semaphore() { dispatch_release(m_handle); }
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void Wait() { dispatch_semaphore_wait(m_handle, DISPATCH_TIME_FOREVER); }
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void Post() { dispatch_semaphore_signal(m_handle); }
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private:
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dispatch_semaphore_t m_handle;
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};
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} // namespace Common
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#else
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#include <semaphore.h>
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namespace Common
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{
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class Semaphore
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{
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public:
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Semaphore(int initial_count, int maximum_count) { sem_init(&m_handle, 0, initial_count); }
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~Semaphore() { sem_destroy(&m_handle); }
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void Wait() { sem_wait(&m_handle); }
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void Post() { sem_post(&m_handle); }
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private:
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sem_t m_handle;
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};
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} // namespace Common
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#endif // _WIN32
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