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92137da0 RO |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
b811d2c2 | 3 | Copyright 2017-2020 Free Software Foundation, Inc. |
92137da0 RO |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | #include <stdlib.h> | |
19 | #include <unistd.h> | |
20 | ||
21 | /* GDB reads this to figure out the child's PID. */ | |
22 | pid_t child_pid; | |
23 | ||
24 | void | |
25 | marker (void) | |
26 | { | |
27 | } | |
28 | ||
29 | int | |
30 | main () | |
31 | { | |
32 | /* Don't let the test case run forever. */ | |
33 | alarm (60); | |
34 | ||
35 | child_pid = fork (); | |
36 | ||
37 | switch (child_pid) | |
38 | { | |
39 | case -1: | |
40 | return 1; | |
41 | ||
42 | case 0: | |
43 | break; | |
44 | ||
45 | default: | |
933aebfa | 46 | /* In parent process. */ |
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47 | while (1) |
48 | { | |
49 | marker (); | |
50 | usleep (1000); | |
51 | } | |
52 | } | |
53 | ||
933aebfa AH |
54 | /* In child process. */ |
55 | ||
56 | /* Alarms are not inherited by child processes. Set the alarm again to stop | |
57 | the test case running forever. */ | |
58 | alarm (60); | |
59 | ||
92137da0 RO |
60 | /* Detach from controlling terminal. */ |
61 | if (setsid () == (pid_t) -1) | |
62 | return 1; | |
63 | ||
933aebfa AH |
64 | while (1) |
65 | usleep (1000); | |
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66 | |
67 | return 0; | |
68 | } |