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| author | Mathias Agopian <mathias@google.com> | 2010-07-14 17:59:35 -0700 |
|---|---|---|
| committer | Mathias Agopian <mathias@google.com> | 2010-07-14 17:59:35 -0700 |
| commit | 08e83bb3b7cc41f603867acbeb1168019cf535fe (patch) | |
| tree | 79594e01ef6c3306b890cb944d6f15d3098075c4 /services/surfaceflinger/Barrier.h | |
| parent | c9a11088e503b9e3ae52a3f671b2d21f5cd54f06 (diff) | |
| download | frameworks_base-08e83bb3b7cc41f603867acbeb1168019cf535fe.zip frameworks_base-08e83bb3b7cc41f603867acbeb1168019cf535fe.tar.gz frameworks_base-08e83bb3b7cc41f603867acbeb1168019cf535fe.tar.bz2 | |
move native services under services/
moved surfaceflinger, audioflinger, cameraservice
all native services should now reside in this location.
Change-Id: Iee42b83dd2a94c3bf5107ab0895fe2dfcd5337a8
Diffstat (limited to 'services/surfaceflinger/Barrier.h')
| -rw-r--r-- | services/surfaceflinger/Barrier.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/services/surfaceflinger/Barrier.h b/services/surfaceflinger/Barrier.h new file mode 100644 index 0000000..6f8507e --- /dev/null +++ b/services/surfaceflinger/Barrier.h @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2007 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef ANDROID_BARRIER_H +#define ANDROID_BARRIER_H + +#include <stdint.h> +#include <sys/types.h> +#include <utils/threads.h> + +namespace android { + +class Barrier +{ +public: + inline Barrier() : state(CLOSED) { } + inline ~Barrier() { } + void open() { + Mutex::Autolock _l(lock); + state = OPENED; + cv.broadcast(); + } + void close() { + Mutex::Autolock _l(lock); + state = CLOSED; + } + void wait() const { + Mutex::Autolock _l(lock); + while (state == CLOSED) { + cv.wait(lock); + } + } +private: + enum { OPENED, CLOSED }; + mutable Mutex lock; + mutable Condition cv; + volatile int state; +}; + +}; // namespace android + +#endif // ANDROID_BARRIER_H |
