A few changes, the ultimate goal of which is to keep better track of the number of messages

that a mailbox currently has. A description of the changes:

1. Changed the "updated" field of the vm_state struct to act more as a binary semaphore than a
   counting semaphore, since its current implementation made the inboxcount function not work properly.
   This change falls in line with a change made by UPenn with their IMAP setup and helps to sync our changes with theirs.
2. Eliminated some redundant calls to get_vm_state_by_mailbox inside leave_voicemail
3. Use the play_folder variable to keep track of the number of old and new messages in a mailbox as the messages are deleted
4. Added an increment to the number of new messages that was not there previously in the leave_voicemail function



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@71877 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_voicemail.c

@@ -2542,7 +2542,7 @@ static int inboxcount(const char *mailbox, int *newmsgs, int *oldmsgs)
 		free_user(vmu);
 		return -1;
 	}
-	if (newmsgs && ret==0 && vms_p->updated==1 ) {
+	if (newmsgs && ret==0 && vms_p->updated > 0 ) {
 		pgm = mail_newsearchpgm ();
 		hdr = mail_newsearchheader ("X-Asterisk-VM-Extension", (char *)mailboxnc);
 		pgm->header = hdr;
@@ -2558,7 +2558,7 @@ static int inboxcount(const char *mailbox, int *newmsgs, int *oldmsgs)
 		vms_p->newmessages = vms_p->vmArrayIndex;
 		mail_free_searchpgm(&pgm);
 	}
-	if (oldmsgs && ret==0 && vms_p->updated==1 ) {
+	if (oldmsgs && ret==0 && vms_p->updated > 0 ) {
 		pgm = mail_newsearchpgm ();
 		hdr = mail_newsearchheader ("X-Asterisk-VM-Extension", (char *)mailboxnc);
 		pgm->header = hdr;
@@ -2574,10 +2574,8 @@ static int inboxcount(const char *mailbox, int *newmsgs, int *oldmsgs)
 		vms_p->oldmessages = vms_p->vmArrayIndex;
 		mail_free_searchpgm(&pgm);
 	}
-	if (vms_p->updated == 1) {  /* changes, so we did the searches above */
+	if (vms_p->updated > 1) {  /* changes, so we did the searches above */
 		vms_p->updated = 0;
-	} else if (vms_p->updated > 1) {  /* decrement delay count */
-		vms_p->updated--;
 	} else {  /* no changes, so don't search */
 		mail_ping(vms_p->mailstream);
 		/* Keep the old data */
@@ -2991,20 +2989,13 @@ static int leave_voicemail(struct ast_channel *chan, char *ext, struct leave_vm_
 #ifdef IMAP_STORAGE
 		/* Is ext a mailbox? */
 		/* must open stream for this user to get info! */
-		vms = get_vm_state_by_mailbox(ext,0);
-		if (vms) {
-			if(option_debug > 2)
-				ast_log(LOG_DEBUG, "Using vm_state, interactive set to %d.\n",vms->interactive);
-			newmsgs = vms->newmessages++;
-			oldmsgs = vms->oldmessages;
-		} else {
 		res = inboxcount(ext_context, &newmsgs, &oldmsgs);
 		if(res < 0) {
 			ast_log(LOG_NOTICE,"Can not leave voicemail, unable to count messages\n");
 			return -1;
 		}
-			vms = get_vm_state_by_mailbox(ext,0);
-		}
+		if((vms = get_vm_state_by_mailbox(ext,0))) 
+			vms->newmessages++; /*still need to increment new message count*/
 		/* here is a big difference! We add one to it later */
 		msgnum = newmsgs + oldmsgs;
 		if (option_debug > 2)
@@ -6375,7 +6366,7 @@ static int vm_execmain(struct ast_channel *chan, void *data)
 
 #ifdef IMAP_STORAGE
 	vms.interactive = 1;
-	vms.updated = 2;
+	vms.updated = 1;
 	vmstate_insert(&vms);
 	init_vm_state(&vms);
 #endif
@@ -6428,6 +6419,7 @@ static int vm_execmain(struct ast_channel *chan, void *data)
 		if (!vms.newmessages && vms.oldmessages) {
 			/* If we only have old messages start here */
 			res = open_mailbox(&vms, vmu, 1);
+			play_folder = 1;
 			if (res == ERROR_LOCK_PATH)
 				goto out;
 		}
@@ -6493,6 +6485,7 @@ static int vm_execmain(struct ast_channel *chan, void *data)
 				res = open_mailbox(&vms, vmu, cmd);
 				if (res == ERROR_LOCK_PATH)
 					goto out;
+				play_folder = cmd;
 				cmd = 0;
 			}
 			if (useadsi)
@@ -6629,10 +6622,20 @@ static int vm_execmain(struct ast_channel *chan, void *data)
 				vms.deleted[vms.curmsg] = !vms.deleted[vms.curmsg];
 				if (useadsi)
 					adsi_delete(chan, &vms);
-				if (vms.deleted[vms.curmsg]) 
+				if (vms.deleted[vms.curmsg]) {
+					if (play_folder == 0)
+						vms.newmessages--;
+					else if (play_folder == 1)
+						vms.oldmessages--;
 					cmd = ast_play_and_wait(chan, "vm-deleted");
-				else
+				}
+				else {
+					if (play_folder == 0)
+						vms.newmessages++;
+					else if (play_folder == 1)
+						vms.oldmessages++;
 					cmd = ast_play_and_wait(chan, "vm-undeleted");
+				}
 				if (ast_test_flag((&globalflags), VM_SKIPAFTERCMD)) {
 					if (vms.curmsg < vms.lastmsg) {
 						vms.curmsg++;
@@ -8835,7 +8838,7 @@ static void vmstate_delete(struct vm_state *vms)
 				ast_log(LOG_DEBUG, "Duplicate mailbox %s, copying message info...\n",vms->username);
 			altvms->newmessages = vms->newmessages;
 			altvms->oldmessages = vms->oldmessages;
-			altvms->updated = 2;
+			altvms->updated = 1;
 		}
 	}
 
@@ -8875,7 +8878,7 @@ static void set_update(MAILSTREAM * stream)
 	if (vms) {
 		if(option_debug > 2)
 			ast_log (LOG_DEBUG, "User %s mailbox set for update.\n",user);
-		vms->updated = 2; /* set updated flag since mailbox changed */
+		vms->updated = 1; /* set updated flag since mailbox changed */
 	} else {
 		if(option_debug > 2)
 			ast_log (LOG_WARNING, "User %s mailbox not found for update.\n",user);