[Asterisk-code-review] sched.c: Make not return a sched id of 0. (asterisk[certified/13.1])

[Richard Mudgett]

Richard Mudgett has uploaded a new change for review.

  https://gerrit.asterisk.org/1740

Change subject: sched.c: Make not return a sched id of 0.
......................................................................

sched.c: Make not return a sched id of 0.

According to the API doxygen a sched ID of 0 is valid.  Unfortunately, 0
was never returned historically and several users incorrectly coded usage
of the returned sched ID assuming that 0 was invalid.

ASTERISK-25476

Change-Id: Ib19c7ebb44ec9fd393ef6646dea806d4f34e3a20
---
M main/sched.c
1 file changed, 9 insertions(+), 2 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/40/1740/1

diff --git a/main/sched.c b/main/sched.c
index 474cd86..27d5df7 100644
--- a/main/sched.c
+++ b/main/sched.c
@@ -315,9 +315,16 @@
 		if (!new_id) {
 			break;
 		}
-		new_id->id = i;
+
+		/*
+		 * According to the API doxygen a sched ID of 0 is valid.
+		 * Unfortunately, 0 was never returned historically and
+		 * several users incorrectly coded usage of the returned
+		 * sched ID assuming that 0 was invalid.
+		 */
+		new_id->id = ++con->id_queue_size;
+
 		AST_LIST_INSERT_TAIL(&con->id_queue, new_id, list);
-		++con->id_queue_size;
 	}
 
 	return con->id_queue_size - original_size;

-- 
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ib19c7ebb44ec9fd393ef6646dea806d4f34e3a20
Gerrit-PatchSet: 1
Gerrit-Project: asterisk
Gerrit-Branch: certified/13.1
Gerrit-Owner: Richard Mudgett <rmudgett at digium.com>