Changeset 566 for trunk/kernel/syscalls/sys_condvar.c

Timestamp:

Oct 4, 2018, 11:50:21 PM (6 years ago)

Author:

alain

Message:

Complete restructuration of kernel locks.

File:

• trunk/kernel/syscalls/sys_condvar.c (modified) (2 diffs)

trunk/kernel/syscalls/sys_condvar.c

@@ -32 +32 @@
 #include <remote_mutex.h>
 
-////////////////////////////////////////
+
+#if DEBUG_SYS_CONDVAR
+/////////////////////////////////////////////////////
+static char * sys_convar_op_str( uint32_t operation )
+{
+        if     ( operation == CONDVAR_INIT      ) return "INIT";
+        else if( operation == CONDVAR_WAIT      ) return "WAIT";
+        else if( operation == CONDVAR_SIGNAL    ) return "SIGNAL";
+        else if( operation == CONDVAR_BROADCAST ) return "BROADCAST";
+        else if( operation == CONDVAR_DESTROY   ) return "DESTROY";
+        else                                      return "undefined";
+}
+#endif
+
+//////////////////////////////////////
 int sys_condvar( void         * condvar,
                  uint32_t       operation,
                  void         * mutex )
 {
+    vseg_t    * vseg;         // for condvar check
         error_t     error;
-    vseg_t    * vseg;
  
     thread_t  * this    = CURRENT_THREAD;
     process_t * process = this->process;
+
+#if DEBUG_SYS_CONDVAR
+uint64_t    tm_start;
+uint64_t    tm_end;
+tm_start = hal_get_cycles();
+if( DEBUG_SYS_CONDVAR < tm_start )
+printk("\n[DBG] %s : thread %x in process %x enter for %s / cycle %d\n",
+__FUNCTION__, this->trdid, process->pid, sys_condvar_op_str( operation ), (uint32_t)tm_start );
+#endif
 
     // check condvar in user vspace
@@ -191 +214 @@
         }   // end switch
 
+    hal_fence();
+
+#if DEBUG_SYS_CONDVAR
+tm_start = hal_get_cycles();
+if( DEBUG_SYS_MUTEX < tm_start )
+printk("\n[DBG] %s : thread %x in process %x exit for %s / cycle %d\n",
+__FUNCTION__, this->trdid, process->pid, sys_condvar_op_str( operation ), (uint32_t)tm_start );
+#endif
+
         return 0;