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tests: avoid data race

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I got some spurious failures when commandhelper won the race and
ran to the point of parent detection prior to the intermediate
daemonizing process getting a chance to exit.  This fixes it.

* tests/commandhelper.c (main): Checking for re-parenting to
init(1) is racy; instead check that we belong to a new session.
This commit is contained in:
Eric Blake 2010-12-15 10:23:32 -07:00
parent f0b834e74f
commit 630fe36f06
1 changed files with 1 additions and 1 deletions
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tests/commandhelper.c
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@ -95,7 +95,7 @@ int main(int argc, char **argv) {
fprintf(log, "FD:%d\n", i);
}
fprintf(log, "DAEMON:%s\n", getppid() == 1 ? "yes" : "no");
fprintf(log, "DAEMON:%s\n", getpgrp() == getsid(0) ? "yes" : "no");
char cwd[1024];
if (!getcwd(cwd, sizeof(cwd)))
return EXIT_FAILURE;