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pe-packer/pe-packer/asmjit/core/osutils_p.h
2025-07-01 21:01:40 +03:00

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C++

// This file is part of AsmJit project <https://asmjit.com>
//
// See asmjit.h or LICENSE.md for license and copyright information
// SPDX-License-Identifier: Zlib
#ifndef ASMJIT_CORE_OSUTILS_P_H_INCLUDED
#define ASMJIT_CORE_OSUTILS_P_H_INCLUDED
#include "../core/osutils.h"
#include "../core/string.h"
ASMJIT_BEGIN_NAMESPACE
//! \cond INTERNAL
//! \addtogroup asmjit_utilities
//! \{
#if defined(_WIN32)
// Windows implementation.
static_assert(sizeof(Lock::Handle) == sizeof(CRITICAL_SECTION), "asmjit::Lock::Handle layout must match CRITICAL_SECTION");
static_assert(alignof(Lock::Handle) == alignof(CRITICAL_SECTION), "asmjit::Lock::Handle alignment must match CRITICAL_SECTION");
ASMJIT_INLINE_NODEBUG Lock::Lock() noexcept { InitializeCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&_handle)); }
ASMJIT_INLINE_NODEBUG Lock::~Lock() noexcept { DeleteCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&_handle)); }
ASMJIT_INLINE_NODEBUG void Lock::lock() noexcept { EnterCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&_handle)); }
ASMJIT_INLINE_NODEBUG void Lock::unlock() noexcept { LeaveCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&_handle)); }
#elif !defined(__EMSCRIPTEN__)
// PThread implementation.
#ifdef PTHREAD_MUTEX_INITIALIZER
ASMJIT_INLINE_NODEBUG Lock::Lock() noexcept : _handle(PTHREAD_MUTEX_INITIALIZER) {}
#else
ASMJIT_INLINE_NODEBUG Lock::Lock() noexcept { pthread_mutex_init(&_handle, nullptr); }
#endif
ASMJIT_INLINE_NODEBUG Lock::~Lock() noexcept { pthread_mutex_destroy(&_handle); }
ASMJIT_INLINE_NODEBUG void Lock::lock() noexcept { pthread_mutex_lock(&_handle); }
ASMJIT_INLINE_NODEBUG void Lock::unlock() noexcept { pthread_mutex_unlock(&_handle); }
#else
// Dummy implementation - Emscripten or other unsupported platform.
ASMJIT_INLINE_NODEBUG Lock::Lock() noexcept {}
ASMJIT_INLINE_NODEBUG Lock::~Lock() noexcept {}
ASMJIT_INLINE_NODEBUG void Lock::lock() noexcept {}
ASMJIT_INLINE_NODEBUG void Lock::unlock() noexcept {}
#endif
//! Scoped lock.
class LockGuard {
public:
ASMJIT_NONCOPYABLE(LockGuard)
Lock& _target;
ASMJIT_INLINE_NODEBUG LockGuard(Lock& target) noexcept
: _target(target) { _target.lock(); }
ASMJIT_INLINE_NODEBUG ~LockGuard() noexcept { _target.unlock(); }
};
#if !defined(_WIN32)
namespace OSUtils {
//! Reads a file, only used on non-Windows platforms to access /sys or other files when necessary.
Error readFile(const char* name, String& dst, size_t maxSize) noexcept;
} // {OSUtils}
#endif
//! \}
//! \endcond
ASMJIT_END_NAMESPACE
#endif // ASMJIT_CORE_OSUTILS_P_H_INCLUDED