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Diffstat (limited to 'lib/asio/detail/posix_event.hpp')
-rw-r--r-- | lib/asio/detail/posix_event.hpp | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/lib/asio/detail/posix_event.hpp b/lib/asio/detail/posix_event.hpp deleted file mode 100644 index 121065e..0000000 --- a/lib/asio/detail/posix_event.hpp +++ /dev/null @@ -1,162 +0,0 @@ -// -// detail/posix_event.hpp -// ~~~~~~~~~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com) -// -// Distributed under the Boost Software License, Version 1.0. (See accompanying -// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -// - -#ifndef ASIO_DETAIL_POSIX_EVENT_HPP -#define ASIO_DETAIL_POSIX_EVENT_HPP - -#if defined(_MSC_VER) && (_MSC_VER >= 1200) -# pragma once -#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) - -#include "asio/detail/config.hpp" - -#if defined(ASIO_HAS_PTHREADS) - -#include <pthread.h> -#include "asio/detail/assert.hpp" -#include "asio/detail/noncopyable.hpp" - -#include "asio/detail/push_options.hpp" - -namespace asio { -namespace detail { - -class posix_event - : private noncopyable -{ -public: - // Constructor. - ASIO_DECL posix_event(); - - // Destructor. - ~posix_event() - { - ::pthread_cond_destroy(&cond_); - } - - // Signal the event. (Retained for backward compatibility.) - template <typename Lock> - void signal(Lock& lock) - { - this->signal_all(lock); - } - - // Signal all waiters. - template <typename Lock> - void signal_all(Lock& lock) - { - ASIO_ASSERT(lock.locked()); - (void)lock; - state_ |= 1; - ::pthread_cond_broadcast(&cond_); // Ignore EINVAL. - } - - // Unlock the mutex and signal one waiter. - template <typename Lock> - void unlock_and_signal_one(Lock& lock) - { - ASIO_ASSERT(lock.locked()); - state_ |= 1; - bool have_waiters = (state_ > 1); - lock.unlock(); - if (have_waiters) - ::pthread_cond_signal(&cond_); // Ignore EINVAL. - } - - // If there's a waiter, unlock the mutex and signal it. - template <typename Lock> - bool maybe_unlock_and_signal_one(Lock& lock) - { - ASIO_ASSERT(lock.locked()); - state_ |= 1; - if (state_ > 1) - { - lock.unlock(); - ::pthread_cond_signal(&cond_); // Ignore EINVAL. - return true; - } - return false; - } - - // Reset the event. - template <typename Lock> - void clear(Lock& lock) - { - ASIO_ASSERT(lock.locked()); - (void)lock; - state_ &= ~std::size_t(1); - } - - // Wait for the event to become signalled. - template <typename Lock> - void wait(Lock& lock) - { - ASIO_ASSERT(lock.locked()); - while ((state_ & 1) == 0) - { - state_ += 2; - ::pthread_cond_wait(&cond_, &lock.mutex().mutex_); // Ignore EINVAL. - state_ -= 2; - } - } - - // Timed wait for the event to become signalled. - template <typename Lock> - bool wait_for_usec(Lock& lock, long usec) - { - ASIO_ASSERT(lock.locked()); - if ((state_ & 1) == 0) - { - state_ += 2; - timespec ts; -#if (defined(__MACH__) && defined(__APPLE__)) \ - || (defined(__ANDROID__) && (__ANDROID_API__ < 21) \ - && defined(HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE)) - ts.tv_sec = usec / 1000000; - ts.tv_nsec = (usec % 1000000) * 1000; - ::pthread_cond_timedwait_relative_np( - &cond_, &lock.mutex().mutex_, &ts); // Ignore EINVAL. -#else // (defined(__MACH__) && defined(__APPLE__)) - // || (defined(__ANDROID__) && (__ANDROID_API__ < 21) - // && defined(HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE)) - if (::clock_gettime(CLOCK_MONOTONIC, &ts) == 0) - { - ts.tv_sec += usec / 1000000; - ts.tv_nsec = (usec % 1000000) * 1000; - ts.tv_sec += ts.tv_nsec / 1000000000; - ts.tv_nsec = ts.tv_nsec % 1000000000; - ::pthread_cond_timedwait(&cond_, - &lock.mutex().mutex_, &ts); // Ignore EINVAL. - } -#endif // (defined(__MACH__) && defined(__APPLE__)) - // || (defined(__ANDROID__) && (__ANDROID_API__ < 21) - // && defined(HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE)) - state_ -= 2; - } - return (state_ & 1) != 0; - } - -private: - ::pthread_cond_t cond_; - std::size_t state_; -}; - -} // namespace detail -} // namespace asio - -#include "asio/detail/pop_options.hpp" - -#if defined(ASIO_HEADER_ONLY) -# include "asio/detail/impl/posix_event.ipp" -#endif // defined(ASIO_HEADER_ONLY) - -#endif // defined(ASIO_HAS_PTHREADS) - -#endif // ASIO_DETAIL_POSIX_EVENT_HPP |