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-rw-r--r--util/lock/ipc_lock.h69
1 files changed, 0 insertions, 69 deletions
diff --git a/util/lock/ipc_lock.h b/util/lock/ipc_lock.h
deleted file mode 100644
index 5d0d321af4..0000000000
--- a/util/lock/ipc_lock.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/* Copyright 2012, Google Inc.
- * All rights reserved.
- *
- * 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.
- * * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * 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 COPYRIGHT
- * OWNER 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 __UTIL_IPC_LOCK_H
-#define __UTIL_IPC_LOCK_H
-
-struct ipc_lock {
- int is_held; /* internal */
- const char *filename; /* provided by the developer */
- int fd; /* internal */
-};
-
-/* don't use C99 initializers here, so this can be used in C++ code */
-#define LOCKFILE_INIT(lockfile) \
- { \
- 0, /* is_held */ \
- lockfile, /* filename */ \
- -1, /* fd */ \
- }
-
-/*
- * acquire_lock: acquire a lock
- *
- * timeout <0 = no timeout (try forever)
- * timeout 0 = do not wait (return immediately)
- * timeout >0 = wait up to $timeout milliseconds (subject to kernel scheduling)
- *
- * return 0 = lock acquired
- * return >0 = lock was already held
- * return <0 = failed to acquire lock
- */
-extern int acquire_lock(struct ipc_lock *lock, int timeout_msecs);
-
-/*
- * release_lock: release a lock
- *
- * returns 0 if lock was released successfully
- * returns -1 if lock had not been held before the call
- */
-extern int release_lock(struct ipc_lock *lock);
-
-#endif /* __UTIL_IPC_LOCK_H */