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Diffstat (limited to 'webrtc/base/event.cc')
-rw-r--r-- | webrtc/base/event.cc | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/webrtc/base/event.cc b/webrtc/base/event.cc deleted file mode 100644 index a9af208..0000000 --- a/webrtc/base/event.cc +++ /dev/null @@ -1,135 +0,0 @@ -/* - * Copyright 2004 The WebRTC Project Authors. All rights reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. An additional intellectual property rights grant can be found - * in the file PATENTS. All contributing project authors may - * be found in the AUTHORS file in the root of the source tree. - */ - -#include "webrtc/base/event.h" - -#if defined(WEBRTC_WIN) -#include <windows.h> -#elif defined(WEBRTC_POSIX) -#include <pthread.h> -#include <sys/time.h> -#include <time.h> -#else -#error "Must define either WEBRTC_WIN or WEBRTC_POSIX." -#endif - -#include "webrtc/base/checks.h" - -namespace rtc { - -#if defined(WEBRTC_WIN) - -Event::Event(bool manual_reset, bool initially_signaled) { - event_handle_ = ::CreateEvent(NULL, // Security attributes. - manual_reset, - initially_signaled, - NULL); // Name. - RTC_CHECK(event_handle_); -} - -Event::~Event() { - CloseHandle(event_handle_); -} - -void Event::Set() { - SetEvent(event_handle_); -} - -void Event::Reset() { - ResetEvent(event_handle_); -} - -bool Event::Wait(int milliseconds) { - DWORD ms = (milliseconds == kForever) ? INFINITE : milliseconds; - return (WaitForSingleObject(event_handle_, ms) == WAIT_OBJECT_0); -} - -#elif defined(WEBRTC_POSIX) - -Event::Event(bool manual_reset, bool initially_signaled) - : is_manual_reset_(manual_reset), - event_status_(initially_signaled) { - RTC_CHECK(pthread_mutex_init(&event_mutex_, NULL) == 0); - RTC_CHECK(pthread_cond_init(&event_cond_, NULL) == 0); -} - -Event::~Event() { - pthread_mutex_destroy(&event_mutex_); - pthread_cond_destroy(&event_cond_); -} - -void Event::Set() { - pthread_mutex_lock(&event_mutex_); - event_status_ = true; - pthread_cond_broadcast(&event_cond_); - pthread_mutex_unlock(&event_mutex_); -} - -void Event::Reset() { - pthread_mutex_lock(&event_mutex_); - event_status_ = false; - pthread_mutex_unlock(&event_mutex_); -} - -bool Event::Wait(int milliseconds) { - pthread_mutex_lock(&event_mutex_); - int error = 0; - - if (milliseconds != kForever) { - // Converting from seconds and microseconds (1e-6) plus - // milliseconds (1e-3) to seconds and nanoseconds (1e-9). - - struct timespec ts; -#if HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE - // Use relative time version, which tends to be more efficient for - // pthread implementations where provided (like on Android). - ts.tv_sec = milliseconds / 1000; - ts.tv_nsec = (milliseconds % 1000) * 1000000; -#else - struct timeval tv; - gettimeofday(&tv, NULL); - - ts.tv_sec = tv.tv_sec + (milliseconds / 1000); - ts.tv_nsec = tv.tv_usec * 1000 + (milliseconds % 1000) * 1000000; - - // Handle overflow. - if (ts.tv_nsec >= 1000000000) { - ts.tv_sec++; - ts.tv_nsec -= 1000000000; - } -#endif - - while (!event_status_ && error == 0) { -#if HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE - error = pthread_cond_timedwait_relative_np( - &event_cond_, &event_mutex_, &ts); -#else - error = pthread_cond_timedwait(&event_cond_, &event_mutex_, &ts); -#endif - } - } else { - while (!event_status_ && error == 0) - error = pthread_cond_wait(&event_cond_, &event_mutex_); - } - - // NOTE(liulk): Exactly one thread will auto-reset this event. All - // the other threads will think it's unsignaled. This seems to be - // consistent with auto-reset events in WEBRTC_WIN - if (error == 0 && !is_manual_reset_) - event_status_ = false; - - pthread_mutex_unlock(&event_mutex_); - - return (error == 0); -} - -#endif - -} // namespace rtc |