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Use lockf which is more portable than flock, from Dagobert Michelsen.

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This commit is contained in:
Nicholas Marriott
2013-04-22 08:42:19 +00:00
parent 5dda1abc32
commit d89b35e682
1 changed files with 2 additions and 2 deletions
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4
client.c
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@@ -78,8 +78,8 @@ client_get_lock(char *lockfile)
if ((lockfd = open(lockfile, O_WRONLY|O_CREAT, 0600)) == -1)
fatal("open failed");
if (flock(lockfd, LOCK_EX|LOCK_NB) == -1 && errno == EWOULDBLOCK) {
while (flock(lockfd, LOCK_EX) == -1 && errno == EINTR)
if (lockf(lockfd, F_TLOCK, 0) == -1 && errno == EAGAIN) {
while (lockf(lockfd, F_LOCK, 0) == -1 && errno == EINTR)
/* nothing */;
close(lockfd);
return (-1);