henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * libjingle |
| 3 | * Copyright 2004--2009, Google Inc. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions are met: |
| 7 | * |
| 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| 9 | * this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 11 | * this list of conditions and the following disclaimer in the documentation |
| 12 | * and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| 19 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 20 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 22 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 23 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 24 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 25 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | #ifndef TALK_BASE_LINUXFDWALK_H_ |
| 29 | #define TALK_BASE_LINUXFDWALK_H_ |
| 30 | |
| 31 | #ifdef __cplusplus |
| 32 | extern "C" { |
| 33 | #endif |
| 34 | |
| 35 | // Linux port of SunOS's fdwalk(3) call. It loops over all open file descriptors |
| 36 | // and calls func on each one. Additionally, it is safe to use from the child |
| 37 | // of a fork that hasn't exec'ed yet, so you can use it to close all open file |
| 38 | // descriptors prior to exec'ing a daemon. |
| 39 | // The return value is 0 if successful, or else -1 and errno is set. The |
| 40 | // possible errors include any error that can be returned by opendir(), |
| 41 | // readdir(), or closedir(), plus EBADF if there are problems parsing the |
| 42 | // contents of /proc/self/fd. |
| 43 | // The file descriptors that are enumerated will not include the file descriptor |
| 44 | // used for the enumeration itself. |
| 45 | int fdwalk(void (*func)(void *, int), void *opaque); |
| 46 | |
| 47 | #ifdef __cplusplus |
| 48 | } // extern "C" |
| 49 | #endif |
| 50 | |
| 51 | #endif // TALK_BASE_LINUXFDWALK_H_ |