1 files changed, 0 insertions, 105 deletions
diff --git a/util/lock/ipc_lock.c b/util/lock/ipc_lock.c
deleted file mode 100644
index 790014e67b..0000000000
--- a/util/lock/ipc_lock.c
+++ /dev/null
@@ -1,105 +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.
- */
-
-#include <inttypes.h>
-#include <stdio.h>
-#include <time.h>
-
-#include "csem.h"
-#include "ipc_lock.h"
-
-static int lock_init(struct ipc_lock *lock)
-{
-	if (lock->sem < 0) {
-		/* get or create the semaphore, init to 1 if needed */
-		int sem = csem_get_or_create(lock->key, 1);
-		if (sem < 0)
-			return -1;
-
-		lock->sem = sem;
-	}
-	return 0;
-}
-
-static void msecs_to_timespec(int msecs, struct timespec *tmspec)
-{
-	tmspec->tv_sec = msecs / 1000;
-	tmspec->tv_nsec = (msecs % 1000) * 1000 * 1000;
-}
-
-int acquire_lock(struct ipc_lock *lock, int timeout_msecs)
-{
-	int ret;
-	struct timespec timeout;
-	struct timespec *timeout_ptr;
-
-	/* initialize the lock */
-	if (lock_init(lock) < 0) {
-		fprintf(stderr, "%s(): failed to init lock 0x%08x\n",
-			__func__, (uint32_t)lock->key);
-		return -1;
-	}
-
-	/* check if it is already held */
-	if (lock->is_held)
-		return 1;
-
-	/* calculate the timeout */
-	if (timeout_msecs >= 0) {
-		timeout_ptr = &timeout;
-		msecs_to_timespec(timeout_msecs, timeout_ptr);
-	} else {
-		timeout_ptr = NULL;
-	}
-
-	/* try to get the lock */
-	ret = csem_down_timeout_undo(lock->sem, timeout_ptr);
-	if (ret < 0) {
-		fprintf(stderr, "%s(): failed to acquire lock 0x%08x\n",
-			__func__, (uint32_t)lock->key);
-		return -1;
-	}
-
-	/* success */
-	lock->is_held = 1;
-	return 0;
-}
-
-int release_lock(struct ipc_lock *lock)
-{
-	if (lock->is_held) {
-		lock->is_held = 0;
-		csem_up_undo(lock->sem);
-		/* NOTE: do not destroy the semaphore, we want it to persist */
-		return 0;
-	}
-	/* did not hold the lock */
-	return -1;
-}