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authorMax Kellermann <max@duempel.org>2013-01-10 09:23:41 +0100
committerMax Kellermann <max@duempel.org>2013-01-10 10:03:19 +0100
commit0b93445380ba39c13813e1a236b183883f5a54db (patch)
tree5f6ed83f4f8ef9dffa8fb80af016c02d7cf2f19d /src/thread/GLibCond.hxx
parent483ba5ea1ccebd4741fbcc5d92648ac6854c60fe (diff)
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thread/Cond: new wrapper for pthread_cond_t or GCond
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diff --git a/src/thread/GLibCond.hxx b/src/thread/GLibCond.hxx
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+/*
+ * Copyright (C) 2013 Max Kellermann <max@duempel.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef MPD_THREAD_GLIB_COND_HXX
+#define MPD_THREAD_GLIB_COND_HXX
+
+#include "GLibMutex.hxx"
+
+/**
+ * A wrapper for GCond.
+ */
+class GLibCond {
+#if GLIB_CHECK_VERSION(2,32,0)
+ GCond cond;
+#else
+ GCond *cond;
+#endif
+
+public:
+ GLibCond() {
+#if GLIB_CHECK_VERSION(2,32,0)
+ g_cond_init(&cond);
+#else
+ cond = g_cond_new();
+#endif
+ }
+
+ ~GLibCond() {
+#if GLIB_CHECK_VERSION(2,32,0)
+ g_cond_clear(&cond);
+#else
+ g_cond_free(cond);
+#endif
+ }
+
+ GLibCond(const GLibCond &other) = delete;
+ GLibCond &operator=(const GLibCond &other) = delete;
+
+private:
+ GCond *GetNative() {
+#if GLIB_CHECK_VERSION(2,32,0)
+ return &cond;
+#else
+ return cond;
+#endif
+ }
+
+public:
+ void signal() {
+ g_cond_signal(GetNative());
+ }
+
+ void broadcast() {
+ g_cond_broadcast(GetNative());
+ }
+
+ void wait(GLibMutex &mutex) {
+ g_cond_wait(GetNative(), mutex.GetNative());
+ }
+};
+
+#endif