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| author | Garrett D'Amore <garrett@damore.org> | 2018-03-05 17:27:04 -0800 |
|---|---|---|
| committer | Garrett D'Amore <garrett@damore.org> | 2018-03-05 19:39:15 -0800 |
| commit | c4da7817b4c8dd71b2a07d4d1c46b486ec57eeb4 (patch) | |
| tree | b1166d49e6673fcbad28c0bd65630f5af37a86ab /src/platform/posix/posix_file.c | |
| parent | b6298c28473acbed2f1429176c7cae4fb514d98b (diff) | |
| download | nng-c4da7817b4c8dd71b2a07d4d1c46b486ec57eeb4.tar.gz nng-c4da7817b4c8dd71b2a07d4d1c46b486ec57eeb4.tar.bz2 nng-c4da7817b4c8dd71b2a07d4d1c46b486ec57eeb4.zip | |
fixes #265 nngcat should support persistent ZT nodes
fixes #267 zerotier transport should lock ZT_HOME
Diffstat (limited to 'src/platform/posix/posix_file.c')
| -rw-r--r-- | src/platform/posix/posix_file.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/platform/posix/posix_file.c b/src/platform/posix/posix_file.c index 7863fdee..83d045fa 100644 --- a/src/platform/posix/posix_file.c +++ b/src/platform/posix/posix_file.c @@ -260,6 +260,33 @@ nni_plat_file_basename(const char *path) return (path); } +int +nni_plat_file_lock(const char *path, nni_plat_flock *lk) +{ + int fd; + if ((fd = open(path, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR)) < 0) { + return (nni_plat_errno(errno)); + } + if (lockf(fd, F_TLOCK, 0) < 0) { + int rv = errno; + close(fd); + if (rv == EAGAIN) { + return (NNG_EBUSY); + } + return (nni_plat_errno(rv)); + } + lk->fd = fd; + return (0); +} + +void +nni_plat_file_unlock(nni_plat_flock *lk) +{ + int fd = lk->fd; + lk->fd = -1; + (void) close(fd); +} + char * nni_plat_temp_dir(void) { |