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Code Issues Releases Wiki Activity

shmem: unlink previously existing shmem regions (closes #139)

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This commit is contained in:
Steffen Vogel 2018-05-07 18:03:00 +02:00
parent bc110a9c24
commit 6aeef09196
1 changed files with 10 additions and 2 deletions
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12
lib/shmem.c
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@ -70,9 +70,17 @@ int shmem_int_open(const char *wname, const char* rname, struct shmem_int *shm,
return -2;
/* Open and initialize the shared region for the output queue */
fd = shm_open(wname, O_RDWR|O_CREAT|O_EXCL, 0600);
if (fd < 0)
retry: fd = shm_open(wname, O_RDWR|O_CREAT|O_EXCL, 0600);
if (fd < 0) {
if (errno == EEXIST) {
ret = shm_unlink(wname);
if (ret)
return -12;
goto retry;
}
return -3;
}
len = shmem_total_size(conf->queuelen, conf->samplelen);
if (ftruncate(fd, len) < 0)