diff options
| -rw-r--r-- | erts/doc/src/erl_driver.xml | 78 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_driver.h | 8 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_drv_thread.c | 42 |
3 files changed, 124 insertions, 4 deletions
diff --git a/erts/doc/src/erl_driver.xml b/erts/doc/src/erl_driver.xml index 64b0c3cac8..b453a4861e 100644 --- a/erts/doc/src/erl_driver.xml +++ b/erts/doc/src/erl_driver.xml @@ -2907,8 +2907,84 @@ ERL_DRV_EXT2TERM char *buf, ErlDrvUInt len beginning of this document.</p> </desc> </func> - </funcs> + <func> + <name><ret>char *</ret><nametext>erl_drv_cond_name(ErlDrvCond *cnd)</nametext></name> + <fsummary>Get name of driver mutex.</fsummary> + <desc> + <marker id="erl_drv_cnd_name"></marker> + <p>Arguments:</p> + <taglist> + <tag><c>cnd</c></tag> + <item>A pointer to an initialized condition.</item> + </taglist> + <p> + Returns a pointer to the name of the condition. + </p> + <note> + <p>This function is intended for debugging purposes only.</p> + </note> + </desc> + </func> + + <func> + <name><ret>char *</ret><nametext>erl_drv_mutex_name(ErlDrvMutex *mtx)</nametext></name> + <fsummary>Get name of driver mutex.</fsummary> + <desc> + <marker id="erl_drv_mutex_name"></marker> + <p>Arguments:</p> + <taglist> + <tag><c>mtx</c></tag> + <item>A pointer to an initialized mutex.</item> + </taglist> + <p> + Returns a pointer to the name of the mutex. + </p> + <note> + <p>This function is intended for debugging purposes only.</p> + </note> + </desc> + </func> + + <func> + <name><ret>char *</ret><nametext>erl_drv_rwlock_name(ErlDrvRWLock *rwlck)</nametext></name> + <fsummary>Get name of driver mutex.</fsummary> + <desc> + <marker id="erl_drv_rwlock_name"></marker> + <p>Arguments:</p> + <taglist> + <tag><c>rwlck</c></tag> + <item>A pointer to an initialized r/w-lock.</item> + </taglist> + <p> + Returns a pointer to the name of the r/w-lock. + </p> + <note> + <p>This function is intended for debugging purposes only.</p> + </note> + </desc> + </func> + + <func> + <name><ret>char *</ret><nametext>erl_drv_thread_name(ErlDrvTid tid)</nametext></name> + <fsummary>Get name of driver mutex.</fsummary> + <desc> + <marker id="erl_drv_rwlock_name"></marker> + <p>Arguments:</p> + <taglist> + <tag><c>tid</c></tag> + <item>A thread identifier.</item> + </taglist> + <p> + Returns a pointer to the name of the thread. + </p> + <note> + <p>This function is intended for debugging purposes only.</p> + </note> + </desc> + </func> + + </funcs> <section> <title>SEE ALSO</title> <p><seealso marker="driver_entry">driver_entry(3)</seealso>, diff --git a/erts/emulator/beam/erl_driver.h b/erts/emulator/beam/erl_driver.h index d2a11cce05..5cffae92be 100644 --- a/erts/emulator/beam/erl_driver.h +++ b/erts/emulator/beam/erl_driver.h @@ -552,6 +552,11 @@ EXTERN int erl_drv_equal_tids(ErlDrvTid tid1, ErlDrvTid tid2); EXTERN void erl_drv_thread_exit(void *resp); EXTERN int erl_drv_thread_join(ErlDrvTid, void **respp); +EXTERN char* erl_drv_mutex_name(ErlDrvMutex *mtx); +EXTERN char* erl_drv_cond_name(ErlDrvCond *cnd); +EXTERN char* erl_drv_rwlock_name(ErlDrvRWLock *rwlck); +EXTERN char* erl_drv_thread_name(ErlDrvTid tid); + /* * Misc. */ @@ -689,6 +694,3 @@ EXTERN int erl_drv_getenv(char *key, char *value, size_t *value_size); /* also in global.h, but driver's can't include global.h */ void dtrace_drvport_str(ErlDrvPort port, char *port_buf); - - - diff --git a/erts/emulator/beam/erl_drv_thread.c b/erts/emulator/beam/erl_drv_thread.c index a49a155701..4f1bba8657 100644 --- a/erts/emulator/beam/erl_drv_thread.c +++ b/erts/emulator/beam/erl_drv_thread.c @@ -188,6 +188,17 @@ erl_drv_mutex_destroy(ErlDrvMutex *dmtx) #endif } + +char * +erl_drv_mutex_name(ErlDrvMutex *dmtx) +{ +#ifdef USE_THREADS + return dmtx ? dmtx->name : NULL; +#else + return NULL; +#endif +} + int erl_drv_mutex_trylock(ErlDrvMutex *dmtx) { @@ -258,6 +269,15 @@ erl_drv_cond_destroy(ErlDrvCond *dcnd) #endif } +char * +erl_drv_cond_name(ErlDrvCond *dcnd) +{ +#ifdef USE_THREADS + return dcnd ? dcnd->name : NULL; +#else + return NULL; +#endif +} void erl_drv_cond_signal(ErlDrvCond *dcnd) @@ -331,6 +351,16 @@ erl_drv_rwlock_destroy(ErlDrvRWLock *drwlck) #endif } +char * +erl_drv_rwlock_name(ErlDrvRWLock *drwlck) +{ +#ifdef USE_THREADS + return drwlck ? drwlck->name : NULL; +#else + return NULL; +#endif +} + int erl_drv_rwlock_tryrlock(ErlDrvRWLock *drwlck) { @@ -617,6 +647,18 @@ erl_drv_thread_create(char *name, #endif } +char * +erl_drv_thread_name(ErlDrvTid tid) +{ +#ifdef USE_THREADS + struct ErlDrvTid_ *dtid = (struct ErlDrvTid_ *) tid; + return dtid ? dtid->name : NULL; +#else + return NULL; +#endif +} + + ErlDrvTid erl_drv_thread_self(void) { |