diff options
Diffstat (limited to 'pjlib/src/pj/os_core_unix.c')
| -rw-r--r-- | pjlib/src/pj/os_core_unix.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/pjlib/src/pj/os_core_unix.c b/pjlib/src/pj/os_core_unix.c index 1c8cb14e..810e4b0d 100644 --- a/pjlib/src/pj/os_core_unix.c +++ b/pjlib/src/pj/os_core_unix.c @@ -102,6 +102,11 @@ struct pj_event_t #endif /* PJ_HAS_EVENT_OBJ */ +/* + * Flag and reference counter for PJLIB instance. + */ +static int initialized; + #if PJ_HAS_THREADS static pj_thread_t main_thread; static long thread_tls_id; @@ -127,6 +132,12 @@ PJ_DEF(pj_status_t) pj_init(void) pj_str_t guid; pj_status_t rc; + /* Check if PJLIB have been initialized */ + if (initialized) { + ++initialized; + return PJ_SUCCESS; + } + #if PJ_HAS_THREADS /* Init this thread's TLS. */ if ((rc=pj_thread_init()) != 0) { @@ -167,6 +178,10 @@ PJ_DEF(pj_status_t) pj_init(void) } #endif + /* Flag PJLIB as initialized */ + ++initialized; + pj_assert(initialized == 1); + PJ_LOG(4,(THIS_FILE, "pjlib %s for POSIX initialized", PJ_VERSION)); @@ -192,6 +207,11 @@ PJ_DEF(void) pj_shutdown() { int i; + /* Only perform shutdown operation when 'initialized' reaches zero */ + pj_assert(initialized > 0); + if (--initialized != 0) + return; + /* Call atexit() functions */ for (i=atexit_count-1; i>=0; --i) { (*atexit_func[i])(); |