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-rw-r--r--src/Platform/Unix/SyncEvent.cpp68
1 files changed, 68 insertions, 0 deletions
diff --git a/src/Platform/Unix/SyncEvent.cpp b/src/Platform/Unix/SyncEvent.cpp
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+++ b/src/Platform/Unix/SyncEvent.cpp
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+/*
+ Copyright (c) 2008 TrueCrypt Developers Association. All rights reserved.
+
+ Governed by the TrueCrypt License 3.0 the full text of which is contained in
+ the file License.txt included in TrueCrypt binary and source code distribution
+ packages.
+*/
+
+#include "Platform/Exception.h"
+#include "Platform/SyncEvent.h"
+#include "Platform/SystemException.h"
+
+namespace TrueCrypt
+{
+ SyncEvent::SyncEvent ()
+ {
+ int status = pthread_cond_init (&SystemSyncEvent, nullptr);
+ if (status != 0)
+ throw SystemException (SRC_POS, status);
+
+ Signaled = false;
+ Initialized = true;
+ }
+
+ SyncEvent::~SyncEvent ()
+ {
+#ifdef DEBUG
+ int status =
+#endif
+ pthread_cond_destroy (&SystemSyncEvent);
+
+#ifdef DEBUG
+ if (status != 0)
+ SystemLog::WriteException (SystemException (SRC_POS, status));
+#endif
+
+ Initialized = false;
+ }
+
+ void SyncEvent::Signal ()
+ {
+ assert (Initialized);
+
+ ScopeLock lock (EventMutex);
+
+ Signaled = true;
+
+ int status = pthread_cond_signal (&SystemSyncEvent);
+ if (status != 0)
+ throw SystemException (SRC_POS, status);
+ }
+
+ void SyncEvent::Wait ()
+ {
+ assert (Initialized);
+
+ ScopeLock lock (EventMutex);
+
+ while (!Signaled)
+ {
+ int status = pthread_cond_wait (&SystemSyncEvent, EventMutex.GetSystemHandle());
+ if (status != 0)
+ throw SystemException (SRC_POS, status);
+ }
+
+ Signaled = false;
+ }
+}