Merged revisions 70311 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.2

........
r70311 | crichter | 2007-06-20 16:47:59 +0200 (Mi, 20 Jun 2007) | 1 line

on receiption of cause:44 we mark the channel as in use and inform the user about the situation, we need to test the RESTART stuff then. Also shuffled the empty_chan_in_stack function after the bchannel cleaning functions, to avoid race conditions.
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@71121 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_misdn.c

@@ -3379,6 +3379,8 @@ static struct chan_list *find_chan_by_pid(struct chan_list *list, int pid)
 static struct chan_list *find_holded(struct chan_list *list, struct misdn_bchannel *bc)
 {
 	struct chan_list *help=list;
+
+	if (bc->pri) return NULL;
 	
 	chan_misdn_log(6, bc->port, "$$$ find_holded: channel:%d oad:%s dad:%s\n",bc->channel, bc->oad,bc->dad);
 	for (;help; help=help->next) {

channels/misdn/isdn_lib.c

@@ -549,9 +549,7 @@ static void bc_next_state_change(struct misdn_bchannel *bc, enum bchannel_state
 static void empty_bc(struct misdn_bchannel *bc)
 {
 	bc->bframe_len=0;
-	
 
-	bc->in_use= 0;
 	bc->cw= 0;
 
 	bc->dec=0;
@@ -671,6 +669,7 @@ static int clean_up_bc(struct misdn_bchannel *bc)
 	mISDN_write_frame(stack->midev, buff, bc->layer_id|FLG_MSG_TARGET|FLG_MSG_DOWN, MGR_DELLAYER | REQUEST, 0, 0, NULL, TIMEOUT_1SEC);
 	
 	bc->b_stid = 0;
+	bc->in_use = 0;
 	bc_state_change(bc, BCHAN_CLEANED);
 	
 	return ret;
@@ -1118,6 +1117,7 @@ int init_bc(struct misdn_stack *stack,  struct misdn_bchannel *bc, int midev, in
 	
 	bc->port=stack->port;
 	bc->nt=stack->nt?1:0;
+	bc->pri=stack->pri;
 	
 	{
 		ibuffer_t* ibuf= init_ibuffer(MISDN_IBUF_SIZE);
@@ -1500,14 +1500,6 @@ static int handle_event ( struct misdn_bchannel *bc, enum event_e event, iframe_
 		switch (event) {
 
 		case EVENT_CONNECT_ACKNOWLEDGE:
-#if 0
-			if ( !misdn_cap_is_speech(bc->capability)) {
-				int ret=setup_bc(bc);
-				if (ret == -EINVAL){
-					cb_log(0,bc->port,"send_event: setup_bc failed\n");
-				}
-			}
-#endif	
 			break;
 		case EVENT_CONNECT:
 
@@ -1599,10 +1591,9 @@ static int handle_cr ( struct misdn_stack *stack, iframe_t *frm)
 			}
       
 			if (bc) {
+				int channel = bc->channel;
 				cb_log(4, stack->port, " --> lib: CLEANING UP l3id: %x\n",frm->dinfo);
-				if (bc->channel>0)
+
-					empty_chan_in_stack(stack,bc->channel);
-				
 				/*bc->pid = 0;*/
 				bc->need_disconnect=0;
 				bc->need_release=0;
@@ -1612,6 +1603,10 @@ static int handle_cr ( struct misdn_stack *stack, iframe_t *frm)
 
 				empty_bc(bc);
 				clean_up_bc(bc);
+
+				if (channel>0)
+					empty_chan_in_stack(stack,bc->channel);
+
 				dump_chan_list(stack);
 
 				if (bc->stack_holder) {
@@ -2066,12 +2061,16 @@ handle_event_nt(void *dat, void *arg)
 					break;
 				case EVENT_RELEASE:
 				case EVENT_RELEASE_COMPLETE:
-					if (bc->channel>0)
+				{
-                        			empty_chan_in_stack(stack, bc->channel);
+					int channel=bc->channel;
 					int tmpcause=bc->cause;	
 			                empty_bc(bc);
 					bc->cause=tmpcause;
 					clean_up_bc(bc);
+
+					if (channel>0)
+                        			empty_chan_in_stack(stack, bc->channel);
+					}
 					break;
 
 				default:
@@ -2638,6 +2637,7 @@ handle_frm_bc:
 						empty_chan_in_stack(stack, bc->channel);
 					empty_bc(bc);
 					bc_state_change(bc,BCHAN_CLEANED);
+					bc->in_use=0;
 
 					cb_log(0, stack->port, "GOT IGNORE SETUP\n");
 
@@ -2655,14 +2655,22 @@ handle_frm_bc:
 
 			if (event == EVENT_RELEASE_COMPLETE) {
 				/* release bchannel only after we've anounced the RELEASE_COMPLETE */
-				if (bc->channel>0)
+				int channel=bc->channel;
-					empty_chan_in_stack(stack,bc->channel);
 				int tmpcause=bc->cause;	
 				int tmp_out_cause=bc->out_cause;	
 				empty_bc(bc);
 				bc->cause=tmpcause;
 				bc->out_cause=tmp_out_cause;
 				clean_up_bc(bc);
+				
+				if (tmpcause == 44) {
+					cb_log(0,stack->port,"**** Received CAUSE:44, so not cleaning up channel %d\n", channel);
+					cb_log(0,stack->port,"**** This channel is now no longer available,\nplease try to restart it with 'misdn send restart <port> <channel>'\n");
+						set_chan_in_stack(stack,bc->channel);
+				} else {
+					if (channel>0)
+						empty_chan_in_stack(stack,bc->channel);
+				}
 			}
 
 			cb_log(5, stack->port, "Freeing Msg on prim:%x \n",frm->prim);
@@ -3342,11 +3350,14 @@ int misdn_lib_send_event(struct misdn_bchannel *bc, enum event_e event )
 					misdn_split_conf(bc2,bc->conf_id);
 				}
 			}
+			
+			int channel=bc->channel;
 
-			if (bc->channel>0)
-				empty_chan_in_stack(stack,bc->channel);
 			empty_bc(bc);
 			clean_up_bc(bc);
+
+			if (channel>0)
+				empty_chan_in_stack(stack,bc->channel);
 		}
 		
 	}
@@ -3380,14 +3391,17 @@ int misdn_lib_send_event(struct misdn_bchannel *bc, enum event_e event )
 
 		if (!stack->nt) {
 			/*create clenaup in TE*/
-			if (bc->channel>0)
+			int channel=bc->channel;
-				empty_chan_in_stack(stack,bc->channel);
+
 			int tmpcause=bc->cause;	
 			int tmp_out_cause=bc->out_cause;	
 			empty_bc(bc);
 			bc->cause=tmpcause;
 			bc->out_cause=tmp_out_cause;
 			clean_up_bc(bc);
+			
+			if (channel>0)
+				empty_chan_in_stack(stack,bc->channel);
 		}
 		break;
     
@@ -3676,9 +3690,21 @@ int misdn_lib_send_restart(int port, int channel)
 
 	for (;i<=max;i++) {
 		dummybc.channel=i;
-		cb_log(0, port, "Restarting channel %d\n",i);
+		cb_log(0, port, "Restarting and cleaning channel %d\n",i);
 		misdn_lib_send_event(&dummybc, EVENT_RESTART);
 		/*do we need to wait before we get an EVENT_RESTART_ACK ?*/
+
+		/* clean up chan in stack, to be sure we don't think it's
+		 * in use anymore */
+		int cnt;
+		for (cnt=0; cnt<=stack->b_num; cnt++) {
+			if (stack->bc[cnt].channel == i) {
+				empty_bc(&stack->bc[cnt]);
+				clean_up_bc(&stack->bc[cnt]);
+			}
+		}
+		empty_chan_in_stack(stack, i);
+			
 	}
 
 	return 0;

channels/misdn/isdn_lib.h

@@ -202,6 +202,8 @@ struct misdn_bchannel {
 	struct send_lock *send_lock;
 
 	int nt;
+	int pri;
+
 	int port;
 	/** init stuff **/
 	int b_stid;