diff options
Diffstat (limited to 'booster/src/booster.c')
| -rw-r--r-- | booster/src/booster.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/booster/src/booster.c b/booster/src/booster.c index 00352d621..6264695ab 100644 --- a/booster/src/booster.c +++ b/booster/src/booster.c @@ -49,6 +49,8 @@ #define GF_UNIT_KB 1024 #endif +static pthread_mutex_t cwdlock = PTHREAD_MUTEX_INITIALIZER; + /* attr constructor registers this function with libc's * _init function as a function that must be called before * the main() of the program. @@ -188,6 +190,7 @@ static ssize_t (*real_sendfile) (int out_fd, int in_fd, off_t *offset, static ssize_t (*real_sendfile64) (int out_fd, int in_fd, off_t *offset, size_t count); static int (*real_fcntl) (int fd, int cmd, ...); +static int (*real_chdir) (const char *path); #define RESOLVE(sym) do { \ if (!real_##sym) \ @@ -2688,6 +2691,55 @@ out: return ret; } + +int +chdir (const char *path) +{ + int ret = -1; + char cwd[PATH_MAX]; + char *res = NULL; + + gf_log ("booster", GF_LOG_TRACE, "chdir: path %s", path); + + pthread_mutex_lock (&cwdlock); + { + res = glusterfs_getcwd (cwd, PATH_MAX); + if (res == NULL) { + gf_log ("booster", GF_LOG_ERROR, "getcwd failed: %s", + strerror (errno)); + goto unlock; + } + + ret = glusterfs_chdir (path); + if ((ret == -1) && (errno != ENODEV)) { + gf_log ("booster", GF_LOG_ERROR, "chdir failed: %s", + strerror (errno)); + goto unlock; + } + + if (ret == 0) { + gf_log ("booster", GF_LOG_TRACE, "chdir succeeded"); + goto unlock; + } + + if (real_chdir == NULL) { + errno = ENOSYS; + ret = -1; + goto unlock; + } + + ret = real_chdir (path); + if (ret == -1) { + glusterfs_chdir (cwd); + } + } +unlock: + pthread_mutex_unlock (&cwdlock); + + return ret; +} + + void booster_lib_init (void) { @@ -2765,6 +2817,7 @@ booster_lib_init (void) RESOLVE (readdir_r); RESOLVE (readdir64_r); RESOLVE (fcntl); + RESOLVE (chdir); /* This must be called after resolving real functions * above so that the socket based IO calls in libglusterfsclient |