root/src/utils/noit_lockfile.h

Revision 8c8aea6bc50ed2cc0619d0585a079dc9a4de6a16, 2.3 kB (checked in by Theo Schlossnagle <jesus@omniti.com>, 4 years ago)

lockfile as root node attribute in both noit.conf and stratcon.conf, closes #263

  • Property mode set to 100644
Line 
1 /*
2  * Copyright (c) 2010, OmniTI Computer Consulting, Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are
7  * met:
8  *
9  *    * Redistributions of source code must retain the above copyright
10  *      notice, this list of conditions and the following disclaimer.
11  *    * Redistributions in binary form must reproduce the above
12  *      copyright notice, this list of conditions and the following
13  *      disclaimer in the documentation and/or other materials provided
14  *      with the distribution.
15  *    * Neither the name OmniTI Computer Consulting, Inc. nor the names
16  *      of its contributors may be used to endorse or promote products
17  *      derived from this software without specific prior written
18  *      permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32
33 #ifndef _UTILS_NOIT_LOCKFILE_H
34 #define _UTILS_NOIT_LOCKFILE_H
35
36 #include "noit_config.h"
37 #include "noit_defines.h"
38
39 typedef int noit_lockfile_t;
40
41 /*! \fn noit_lockfile_t noit_lockfile_acquire(const char *lf)
42     \brief lock the file immediately if possible, return -1 otherwise.
43     \param lf the path to the lock file
44     \return >= 0 on success, -1 on failure
45  */
46
47 API_EXPORT(noit_lockfile_t)
48   noit_lockfile_acquire(const char *fp);
49
50 /*! \fn int noit_lockfile_release(noit_lockfile_t lf)
51     \brief release a held file lock
52     \param lf the file lock to release
53     \return -1 on failure, 0 on success
54  */
55
56 API_EXPORT(int)
57   noit_lockfile_release(noit_lockfile_t lf);
58
59 #endif
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