69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2017-2020 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <stdlib.h>
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#include <unistd.h>
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/* GDB reads this to figure out the child's PID. */
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pid_t child_pid;
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void
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marker (void)
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{
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}
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int
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main ()
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{
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/* Don't let the test case run forever. */
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alarm (60);
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child_pid = fork ();
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switch (child_pid)
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{
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case -1:
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return 1;
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case 0:
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break;
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default:
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/* In parent process. */
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while (1)
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{
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marker ();
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usleep (1000);
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}
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}
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/* In child process. */
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/* Alarms are not inherited by child processes. Set the alarm again to stop
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the test case running forever. */
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alarm (60);
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/* Detach from controlling terminal. */
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if (setsid () == (pid_t) -1)
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return 1;
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while (1)
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usleep (1000);
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return 0;
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}
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