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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 shared_mutex
{
uv_rwlock_t _M_;
public:
shared_mutex() { uv_rwlock_init(&_M_); }
~shared_mutex() { uv_rwlock_destroy(&_M_); }
shared_mutex(shared_mutex const&) = delete;
shared_mutex& operator=(shared_mutex const&) = delete;
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;
public:
shared_lock(T& m)
: _mutex(m)
{
_mutex.lock_shared();
}
~shared_lock() { _mutex.unlock_shared(); }
shared_lock(shared_lock const&) = delete;
shared_lock& operator=(shared_lock const&) = delete;
};
}
#endif
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