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fix locking and add lock debugging as a define

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3870 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale
2006-12-29 16:39:56 +00:00
parent 3b998f7c91
commit c4717f9077
3 changed files with 113 additions and 11 deletions
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src/include/switch_core.h
+47
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@@ -230,24 +230,60 @@ SWITCH_DECLARE(switch_status_t) switch_core_destroy(int vg);
///\defgroup rwl Read/Write Locking
///\ingroup core1
///\{
#ifdef SWITCH_DEBUG_RWLOCKS
SWITCH_DECLARE(switch_status_t) switch_core_session_perform_read_lock(switch_core_session_t *session,
const char *file,
const char *func,
int line);
#endif
/*!
\brief Acquire a read lock on the session
\param session the session to acquire from
\return success if it is safe to read from the session
*/
#ifdef SWITCH_DEBUG_RWLOCKS
#define switch_core_session_read_lock(session) switch_core_session_perform_read_lock(session, __FILE__, __SWITCH_FUNC__, __LINE__)
#else
SWITCH_DECLARE(switch_status_t) switch_core_session_read_lock(switch_core_session_t *session);
#endif
#ifdef SWITCH_DEBUG_RWLOCKS
SWITCH_DECLARE(void) switch_core_session_perform_write_lock(switch_core_session_t *session,
const char *file,
const char *func,
int line);
#endif
/*!
\brief Acquire a write lock on the session
\param session the session to acquire from
*/
#ifdef SWITCH_DEBUG_RWLOCKS
#define switch_core_session_write_lock(session) switch_core_session_perform_write_lock(session, __FILE__, __SWITCH_FUNC__, __LINE__)
#else
SWITCH_DECLARE(void) switch_core_session_write_lock(switch_core_session_t *session);
#endif
#ifdef SWITCH_DEBUG_RWLOCKS
SWITCH_DECLARE(void) switch_core_session_perform_rwunlock(switch_core_session_t *session,
const char *file,
const char *func,
int line);
#endif
/*!
\brief Unlock a read or write lock on as given session
\param session the session
*/
#ifdef SWITCH_DEBUG_RWLOCKS
#define switch_core_session_rwunlock(session) switch_core_session_perform_rwunlock(session, __FILE__, __SWITCH_FUNC__, __LINE__)
#else
SWITCH_DECLARE(void) switch_core_session_rwunlock(switch_core_session_t *session);
#endif
///\}
///\defgroup sh State Handlers
@@ -410,13 +446,24 @@ SWITCH_DECLARE(void) switch_core_session_signal_state_change(switch_core_session
*/
SWITCH_DECLARE(char *) switch_core_session_get_uuid(switch_core_session_t *session);
#ifdef SWITCH_DEBUG_RWLOCKS
SWITCH_DECLARE(switch_core_session_t *) switch_core_session_perform_locate(char *uuid_str,
const char *file,
const char *func,
int line);
#endif
/*!
\brief Locate a session based on it's uuiid
\param uuid_str the unique id of the session you want to find
\return the session or NULL
\note if the session was located it will have a read lock obtained which will need to be released with switch_core_session_rwunlock()
*/
#ifdef SWITCH_DEBUG_RWLOCKS
#define switch_core_session_locate(uuid_str) switch_core_session_perform_locate(uuid_str, __FILE__, __SWITCH_FUNC__, __LINE__)
#else
SWITCH_DECLARE(switch_core_session_t *) switch_core_session_locate(char *uuid_str);
#endif
/*!
\brief Retrieve a global variable from the core