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-rw-r--r--src/lib/mt/Thread.cpp187
1 files changed, 187 insertions, 0 deletions
diff --git a/src/lib/mt/Thread.cpp b/src/lib/mt/Thread.cpp
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+++ b/src/lib/mt/Thread.cpp
@@ -0,0 +1,187 @@
+/*
+ * barrier -- mouse and keyboard sharing utility
+ * Copyright (C) 2012-2016 Symless Ltd.
+ * Copyright (C) 2002 Chris Schoeneman
+ *
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file LICENSE that should have accompanied this file.
+ *
+ * This package 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "mt/Thread.h"
+
+#include "mt/XMT.h"
+#include "mt/XThread.h"
+#include "arch/Arch.h"
+#include "base/Log.h"
+#include "base/IJob.h"
+
+//
+// Thread
+//
+
+Thread::Thread(IJob* job)
+{
+ m_thread = ARCH->newThread(&Thread::threadFunc, job);
+ if (m_thread == NULL) {
+ // couldn't create thread
+ delete job;
+ throw XMTThreadUnavailable();
+ }
+}
+
+Thread::Thread(const Thread& thread)
+{
+ m_thread = ARCH->copyThread(thread.m_thread);
+}
+
+Thread::Thread(ArchThread adoptedThread)
+{
+ m_thread = adoptedThread;
+}
+
+Thread::~Thread()
+{
+ ARCH->closeThread(m_thread);
+}
+
+Thread&
+Thread::operator=(const Thread& thread)
+{
+ // copy given thread and release ours
+ ArchThread copy = ARCH->copyThread(thread.m_thread);
+ ARCH->closeThread(m_thread);
+
+ // cut over
+ m_thread = copy;
+
+ return *this;
+}
+
+void
+Thread::exit(void* result)
+{
+ throw XThreadExit(result);
+}
+
+void
+Thread::cancel()
+{
+ ARCH->cancelThread(m_thread);
+}
+
+void
+Thread::setPriority(int n)
+{
+ ARCH->setPriorityOfThread(m_thread, n);
+}
+
+void
+Thread::unblockPollSocket()
+{
+ ARCH->unblockPollSocket(m_thread);
+}
+
+Thread
+Thread::getCurrentThread()
+{
+ return Thread(ARCH->newCurrentThread());
+}
+
+void
+Thread::testCancel()
+{
+ ARCH->testCancelThread();
+}
+
+bool
+Thread::wait(double timeout) const
+{
+ return ARCH->wait(m_thread, timeout);
+}
+
+void*
+Thread::getResult() const
+{
+ if (wait())
+ return ARCH->getResultOfThread(m_thread);
+ else
+ return NULL;
+}
+
+IArchMultithread::ThreadID
+Thread::getID() const
+{
+ return ARCH->getIDOfThread(m_thread);
+}
+
+bool
+Thread::operator==(const Thread& thread) const
+{
+ return ARCH->isSameThread(m_thread, thread.m_thread);
+}
+
+bool
+Thread::operator!=(const Thread& thread) const
+{
+ return !ARCH->isSameThread(m_thread, thread.m_thread);
+}
+
+void*
+Thread::threadFunc(void* vjob)
+{
+ // get this thread's id for logging
+ IArchMultithread::ThreadID id;
+ {
+ ArchThread thread = ARCH->newCurrentThread();
+ id = ARCH->getIDOfThread(thread);
+ ARCH->closeThread(thread);
+ }
+
+ // get job
+ IJob* job = static_cast<IJob*>(vjob);
+
+ // run job
+ void* result = NULL;
+ try {
+ // go
+ LOG((CLOG_DEBUG1 "thread 0x%08x entry", id));
+ job->run();
+ LOG((CLOG_DEBUG1 "thread 0x%08x exit", id));
+ }
+ catch (XThreadCancel&) {
+ // client called cancel()
+ LOG((CLOG_DEBUG1 "caught cancel on thread 0x%08x", id));
+ delete job;
+ throw;
+ }
+ catch (XThreadExit& e) {
+ // client called exit()
+ result = e.m_result;
+ LOG((CLOG_DEBUG1 "caught exit on thread 0x%08x, result %p", id, result));
+ }
+ catch (XBase& e) {
+ LOG((CLOG_ERR "exception on thread 0x%08x: %s", id, e.what()));
+ delete job;
+ throw;
+ }
+ catch (...) {
+ LOG((CLOG_ERR "exception on thread 0x%08x: <unknown>", id));
+ delete job;
+ throw;
+ }
+
+ // done with job
+ delete job;
+
+ // return exit result
+ return result;
+}