Changeset 581 for trunk/kernel/syscalls/sys_barrier.c

Timestamp:

Oct 10, 2018, 3:11:53 PM (6 years ago)

Author:

alain

Message:

1) Improve the busylock debug infrastructure.
2) introduce a non-distributed, but portable implementation for the pthread_barrier.

File:

• trunk/kernel/syscalls/sys_barrier.c (modified) (3 diffs)

trunk/kernel/syscalls/sys_barrier.c

@@ -31 +31 @@
 #include <remote_barrier.h>
 
+#if DEBUG_SYS_BARRIER
+//////////////////////////////////////////////////////
+static char * sys_barrier_op_str( uint32_t operation )
+{
+        if     ( operation == BARRIER_INIT    ) return "INIT";
+        else if( operation == BARRIER_DESTROY ) return "DESTROY";
+        else if( operation == BARRIER_WAIT    ) return "WAIT";
+        else                                    return "undefined";
+}
+#endif
+
 //////////////////////////////////
 int sys_barrier( void     * vaddr,
@@ -41 +52 @@
     thread_t   * this    = CURRENT_THREAD;
     process_t  * process = this->process;
+
+#if DEBUG_SYS_BARRIER
+uint64_t   tm_start;
+uint64_t   tm_end;
+tm_start = hal_get_cycles();
+if( DEBUG_SYS_BARRIER < tm_start )
+printk("\n[DBG] %s : thread %x in process %x enter for %s / count %d / cycle %d\n",
+__FUNCTION__, this->trdid, process->pid, sys_barrier_op_str(operation), count,
+(uint32_t)tm_start );
+#endif
 
     // check vaddr in user vspace
@@ -125 +146 @@
         }  // end switch
 
+#if DEBUG_SYS_BARRIER
+tm_end = hal_get_cycles();
+if( DEBUG_SYS_BARRIER < tm_end )
+printk("\n[DBG] %s : thread %x in process %x exit for %s / cost %d / cycle %d\n",
+__FUNCTION__, this->trdid, process->pid, sys_barrier_op_str(operation), 
+(uint32_t)(tm_end - tm_start), (uint32_t)tm_end );
+#endif
+
         return 0;