version 1.22.0

source tree changed detached PIConsole and PIScreen* in "pip_console" library
2020-06-28 00:18:24 +03:00
parent 5de62b1c83
commit 42925122cb
231 changed files with 22981 additions and 22948 deletions
--- a/lib/concurrent/piconditionvar.cpp
+++ b/lib/concurrent/piconditionvar.cpp
@@ -0,0 +1,142 @@
+/*
+	PIP - Platform Independent Primitives
+
+	Stephan Fomenko
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Lesser General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public License
+	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "piplatform.h"
+#include "piconditionvar.h"
+#include "pithread.h"
+#include "pitime.h"
+
+#ifdef WINDOWS
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x0600
+#include "synchapi.h"
+#include <windef.h>
+#include <winbase.h>
+#endif
+
+
+PRIVATE_DEFINITION_START(PIConditionVariable)
+#ifdef WINDOWS
+CONDITION_VARIABLE nativeHandle;
+#else
+pthread_cond_t nativeHandle;
+PIConditionLock* currentLock;
+#endif
+bool isDestroying;
+PRIVATE_DEFINITION_END(PIConditionVariable)
+
+
+PIConditionVariable::PIConditionVariable() {
+#ifdef WINDOWS
+	InitializeConditionVariable(&PRIVATE->nativeHandle);
+#else
+	PRIVATE->isDestroying = false;
+	PRIVATE->currentLock = nullptr;
+	memset(&(PRIVATE->nativeHandle), 0, sizeof(PRIVATE->nativeHandle));
+	pthread_cond_init(&PRIVATE->nativeHandle, NULL);
+#endif
+}
+
+
+PIConditionVariable::~PIConditionVariable() {
+#ifdef WINDOWS
+#else
+	pthread_cond_destroy(&PRIVATE->nativeHandle);
+#endif
+}
+
+
+void PIConditionVariable::wait(PIConditionLock& lk) {
+#ifdef WINDOWS
+	SleepConditionVariableCS(&PRIVATE->nativeHandle, (PCRITICAL_SECTION)lk.handle(), INFINITE);
+#else
+	pthread_cond_wait(&PRIVATE->nativeHandle, (pthread_mutex_t*)lk.handle());
+#endif
+}
+
+
+void PIConditionVariable::wait(PIConditionLock& lk, const std::function<bool()>& condition) {
+	bool isCondition;
+	while (true) {
+		isCondition = condition();
+		if (isCondition) break;
+#ifdef WINDOWS
+		SleepConditionVariableCS(&PRIVATE->nativeHandle, (PCRITICAL_SECTION)lk.handle(), INFINITE);
+#else
+		pthread_cond_wait(&PRIVATE->nativeHandle, (pthread_mutex_t*)lk.handle());
+#endif
+		if (PRIVATE->isDestroying) return;
+	}
+}
+
+
+bool PIConditionVariable::waitFor(PIConditionLock &lk, int timeoutMs) {
+	bool isNotTimeout;
+#ifdef WINDOWS
+	isNotTimeout = SleepConditionVariableCS(&PRIVATE->nativeHandle, (PCRITICAL_SECTION)lk.handle(), timeoutMs) != 0;
+#else
+	timespec abstime = {.tv_sec = timeoutMs / 1000, .tv_nsec = timeoutMs * 1000 * 1000};
+	isNotTimeout = pthread_cond_timedwait(&PRIVATE->nativeHandle, (pthread_mutex_t*)lk.handle(), &abstime) == 0;
+#endif
+	if (PRIVATE->isDestroying) return false;
+	return isNotTimeout;
+}
+
+
+bool PIConditionVariable::waitFor(PIConditionLock& lk, int timeoutMs, const std::function<bool()> &condition) {
+	bool isCondition;
+	PITimeMeasurer measurer;
+	while (true) {
+		isCondition = condition();
+		if (isCondition) break;
+#ifdef WINDOWS
+		WINBOOL isTimeout = SleepConditionVariableCS(
+					&PRIVATE->nativeHandle,
+					(PCRITICAL_SECTION)lk.handle(),
+					timeoutMs - (int)measurer.elapsed_m());
+		if (isTimeout == 0) return false;
+#else
+		int timeoutCurr = timeoutMs - (int)measurer.elapsed_m();
+		timespec abstime = {.tv_sec = timeoutCurr / 1000, .tv_nsec = timeoutCurr * 1000 * 1000};
+		bool isTimeout = pthread_cond_timedwait(&PRIVATE->nativeHandle, (pthread_mutex_t*)lk.handle(), &abstime) == 0;
+		if (isTimeout) return false;
+#endif
+		if (PRIVATE->isDestroying) return false;
+	}
+	return true;
+}
+
+
+void PIConditionVariable::notifyOne() {
+#ifdef WINDOWS
+	WakeConditionVariable(&PRIVATE->nativeHandle);
+#else
+	pthread_cond_signal(&PRIVATE->nativeHandle);
+#endif
+}
+
+
+void PIConditionVariable::notifyAll() {
+#ifdef WINDOWS
+	WakeAllConditionVariable(&PRIVATE->nativeHandle);
+#else
+	pthread_cond_broadcast(&PRIVATE->nativeHandle);
+#endif
+}
+