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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#ifndef CM_THREAD_HXX
#define CM_THREAD_HXX
#include "cmConfigure.h" // IWYU pragma: keep
#include "cm_uv.h"
namespace cm {
class mutex
{
CM_DISABLE_COPY(mutex)
uv_mutex_t _M_;
public:
mutex() { uv_mutex_init(&_M_); }
~mutex() { uv_mutex_destroy(&_M_); }
void lock() { uv_mutex_lock(&_M_); }
void unlock() { uv_mutex_unlock(&_M_); }
};
template <typename T>
class lock_guard
{
T& _mutex;
CM_DISABLE_COPY(lock_guard)
public:
lock_guard(T& m)
: _mutex(m)
{
_mutex.lock();
}
~lock_guard() { _mutex.unlock(); }
};
class shared_mutex
{
uv_rwlock_t _M_;
CM_DISABLE_COPY(shared_mutex)
public:
shared_mutex() { uv_rwlock_init(&_M_); }
~shared_mutex() { uv_rwlock_destroy(&_M_); }
void lock() { uv_rwlock_wrlock(&_M_); }
void unlock() { uv_rwlock_wrunlock(&_M_); }
void lock_shared() { uv_rwlock_rdlock(&_M_); }
void unlock_shared() { uv_rwlock_rdunlock(&_M_); }
};
template <typename T>
class shared_lock
{
T& _mutex;
CM_DISABLE_COPY(shared_lock)
public:
shared_lock(T& m)
: _mutex(m)
{
_mutex.lock_shared();
}
~shared_lock() { _mutex.unlock_shared(); }
};
template <typename T>
class unique_lock : public lock_guard<T>
{
CM_DISABLE_COPY(unique_lock)
public:
unique_lock(T& m)
: lock_guard<T>(m)
{
}
};
}
#endif
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