Mercurial > projects > pwm
comparison proc.h @ 19:5c6155c8e9b6
Handle signals
Handled signals are generally blocked and only unblocked when doing blocking
I/O, i.e. either when reading commands or printing results. A (possibly
queued) signal will then interrupt I/O and can be dealt with in the main loop.
author | Guido Berhoerster <guido+pwm@berhoerster.name> |
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date | Fri, 01 Sep 2017 22:33:41 +0200 |
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18:1e39a251cbe9 | 19:5c6155c8e9b6 |
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1 /* | |
2 * Copyright (C) 2017 Guido Berhoerster <guido+pwm@berhoerster.name> | |
3 * | |
4 * Permission is hereby granted, free of charge, to any person obtaining | |
5 * a copy of this software and associated documentation files (the | |
6 * "Software"), to deal in the Software without restriction, including | |
7 * without limitation the rights to use, copy, modify, merge, publish, | |
8 * distribute, sublicense, and/or sell copies of the Software, and to | |
9 * permit persons to whom the Software is furnished to do so, subject to | |
10 * the following conditions: | |
11 * | |
12 * The above copyright notice and this permission notice shall be included | |
13 * in all copies or substantial portions of the Software. | |
14 * | |
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY | |
19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, | |
20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE | |
21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
22 */ | |
23 | |
24 #ifndef PROC_H | |
25 #define PROC_H | |
26 | |
27 #include "io.h" | |
28 | |
29 struct proc { | |
30 int fd; | |
31 pid_t pid; | |
32 }; | |
33 | |
34 enum io_status proc_open(struct proc *, const char *, const char *); | |
35 enum io_status proc_close(struct proc *); | |
36 | |
37 #endif /* !PROC_H */ |