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Prevent races running the queue by serializing access to the

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queue directory.

PR:		bin/113239
This commit is contained in:
Guy Helmer 2013-06-11 18:43:27 +00:00
parent e1de133c2e
commit 2b0cbe6d3a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=251625
1 changed files with 4 additions and 0 deletions
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4
libexec/atrun/atrun.c
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@ -31,6 +31,7 @@ static const char rcsid[] =
/* System Headers */
#include <sys/fcntl.h>
#include <sys/file.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef __FreeBSD__
@ -521,6 +522,9 @@ main(int argc, char *argv[])
if ((spool = opendir(".")) == NULL)
perr("cannot read %s", ATJOB_DIR);
if (flock(dirfd(spool), LOCK_EX) == -1)
perr("cannot lock %s", ATJOB_DIR);
now = time(NULL);
run_batch = 0;
batch_uid = (uid_t) -1;