From 20b9dac9fc989382fd111e06361ec1eb29d0576b Mon Sep 17 00:00:00 2001
From: Alec L Davis <sivad.a@paradise.net.nz>
Date: Mon, 10 Jun 2013 08:23:52 +0000
Subject: [PATCH] IAX2: refactor nativebridge transfer
remove triple checking of iaxs[fr->callno]->transferring
reduce indentation.
Reported by: alecdavis
Tested by: alecdavis
alecdavis (license 585)
Review https://reviewboard.asterisk.org/r/2602/
........
Merged revisions 391065 from http://svn.asterisk.org/svn/asterisk/branches/1.8
git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/11@391084 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
channels/chan_iax2.c | 94 ++++++++++++++++++++++++--------------------
1 file changed, 51 insertions(+), 43 deletions(-)
diff --git a/channels/chan_iax2.c b/channels/chan_iax2.c
index fa7511b0df..40805435d9 100644
--- a/channels/chan_iax2.c
+++ b/channels/chan_iax2.c
@@ -11529,57 +11529,65 @@ immediatedial:
}
}
- if ((iaxs[fr->callno]->transferring == TRANSFER_BEGIN) ||
- (iaxs[fr->callno]->transferring == TRANSFER_MBEGIN)) {
- if (iaxs[fr->callno]->transferring == TRANSFER_MBEGIN)
- iaxs[fr->callno]->transferring = TRANSFER_MREADY;
- else
- iaxs[fr->callno]->transferring = TRANSFER_READY;
- ast_verb(3, "Channel '%s' ready to transfer\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>");
+ if (iaxs[fr->callno]->transferring == TRANSFER_BEGIN) {
+ iaxs[fr->callno]->transferring = TRANSFER_MREADY;
+ } else if (iaxs[fr->callno]->transferring == TRANSFER_MBEGIN) {
+ iaxs[fr->callno]->transferring = TRANSFER_READY;
+ } else {
if (iaxs[fr->callno]->bridgecallno) {
- if ((iaxs[iaxs[fr->callno]->bridgecallno]->transferring == TRANSFER_READY) ||
- (iaxs[iaxs[fr->callno]->bridgecallno]->transferring == TRANSFER_MREADY)) {
- /* They're both ready, now release them. */
- if (iaxs[fr->callno]->transferring == TRANSFER_MREADY) {
- ast_verb(3, "Attempting media bridge of %s and %s\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>",
- iaxs[iaxs[fr->callno]->bridgecallno]->owner ? ast_channel_name(iaxs[iaxs[fr->callno]->bridgecallno]->owner) : "<Unknown>");
+ ast_mutex_unlock(&iaxsl[iaxs[fr->callno]->bridgecallno]);
+ }
+ break;
+ }
+ ast_verb(3, "Channel '%s' ready to transfer\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>");
- iaxs[iaxs[fr->callno]->bridgecallno]->transferring = TRANSFER_MEDIA;
- iaxs[fr->callno]->transferring = TRANSFER_MEDIA;
+ if (!iaxs[fr->callno]->bridgecallno) {
+ break;
+ }
- memset(&ied0, 0, sizeof(ied0));
- memset(&ied1, 0, sizeof(ied1));
- iax_ie_append_short(&ied0, IAX_IE_CALLNO, iaxs[iaxs[fr->callno]->bridgecallno]->peercallno);
- iax_ie_append_short(&ied1, IAX_IE_CALLNO, iaxs[fr->callno]->peercallno);
- send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_TXMEDIA, 0, ied0.buf, ied0.pos, -1);
- send_command(iaxs[iaxs[fr->callno]->bridgecallno], AST_FRAME_IAX, IAX_COMMAND_TXMEDIA, 0, ied1.buf, ied1.pos, -1);
- } else {
- ast_verb(3, "Releasing %s and %s\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>",
- iaxs[iaxs[fr->callno]->bridgecallno]->owner ? ast_channel_name(iaxs[iaxs[fr->callno]->bridgecallno]->owner) : "<Unknown>");
+ if (!(iaxs[iaxs[fr->callno]->bridgecallno]->transferring == TRANSFER_READY) &&
+ !(iaxs[iaxs[fr->callno]->bridgecallno]->transferring == TRANSFER_MREADY)) {
+ break;
+ }
- iaxs[iaxs[fr->callno]->bridgecallno]->transferring = TRANSFER_RELEASED;
- iaxs[fr->callno]->transferring = TRANSFER_RELEASED;
- ast_set_flag64(iaxs[iaxs[fr->callno]->bridgecallno], IAX_ALREADYGONE);
- ast_set_flag64(iaxs[fr->callno], IAX_ALREADYGONE);
+ /* Both sides are ready */
- /* Stop doing lag & ping requests */
- stop_stuff(fr->callno);
- stop_stuff(iaxs[fr->callno]->bridgecallno);
+ /* XXX what isn't checked here is that both sides match transfer types. */
- memset(&ied0, 0, sizeof(ied0));
- memset(&ied1, 0, sizeof(ied1));
- iax_ie_append_short(&ied0, IAX_IE_CALLNO, iaxs[iaxs[fr->callno]->bridgecallno]->peercallno);
- iax_ie_append_short(&ied1, IAX_IE_CALLNO, iaxs[fr->callno]->peercallno);
- send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_TXREL, 0, ied0.buf, ied0.pos, -1);
- send_command(iaxs[iaxs[fr->callno]->bridgecallno], AST_FRAME_IAX, IAX_COMMAND_TXREL, 0, ied1.buf, ied1.pos, -1);
- }
+ if (iaxs[fr->callno]->transferring == TRANSFER_MREADY) {
+ ast_verb(3, "Attempting media bridge of %s and %s\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>",
+ iaxs[iaxs[fr->callno]->bridgecallno]->owner ? ast_channel_name(iaxs[iaxs[fr->callno]->bridgecallno]->owner) : "<Unknown>");
- }
- }
- }
- if (iaxs[fr->callno]->bridgecallno) {
- ast_mutex_unlock(&iaxsl[iaxs[fr->callno]->bridgecallno]);
+ iaxs[iaxs[fr->callno]->bridgecallno]->transferring = TRANSFER_MEDIA;
+ iaxs[fr->callno]->transferring = TRANSFER_MEDIA;
+
+ memset(&ied0, 0, sizeof(ied0));
+ memset(&ied1, 0, sizeof(ied1));
+ iax_ie_append_short(&ied0, IAX_IE_CALLNO, iaxs[iaxs[fr->callno]->bridgecallno]->peercallno);
+ iax_ie_append_short(&ied1, IAX_IE_CALLNO, iaxs[fr->callno]->peercallno);
+ send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_TXMEDIA, 0, ied0.buf, ied0.pos, -1);
+ send_command(iaxs[iaxs[fr->callno]->bridgecallno], AST_FRAME_IAX, IAX_COMMAND_TXMEDIA, 0, ied1.buf, ied1.pos, -1);
+ } else {
+ ast_verb(3, "Releasing %s and %s\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>",
+ iaxs[iaxs[fr->callno]->bridgecallno]->owner ? ast_channel_name(iaxs[iaxs[fr->callno]->bridgecallno]->owner) : "<Unknown>");
+
+ iaxs[iaxs[fr->callno]->bridgecallno]->transferring = TRANSFER_RELEASED;
+ iaxs[fr->callno]->transferring = TRANSFER_RELEASED;
+ ast_set_flag64(iaxs[iaxs[fr->callno]->bridgecallno], IAX_ALREADYGONE);
+ ast_set_flag64(iaxs[fr->callno], IAX_ALREADYGONE);
+
+ /* Stop doing lag & ping requests */
+ stop_stuff(fr->callno);
+ stop_stuff(iaxs[fr->callno]->bridgecallno);
+
+ memset(&ied0, 0, sizeof(ied0));
+ memset(&ied1, 0, sizeof(ied1));
+ iax_ie_append_short(&ied0, IAX_IE_CALLNO, iaxs[iaxs[fr->callno]->bridgecallno]->peercallno);
+ iax_ie_append_short(&ied1, IAX_IE_CALLNO, iaxs[fr->callno]->peercallno);
+ send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_TXREL, 0, ied0.buf, ied0.pos, -1);
+ send_command(iaxs[iaxs[fr->callno]->bridgecallno], AST_FRAME_IAX, IAX_COMMAND_TXREL, 0, ied1.buf, ied1.pos, -1);
}
+ ast_mutex_unlock(&iaxsl[iaxs[fr->callno]->bridgecallno]);
break;
case IAX_COMMAND_TXREQ:
try_transfer(iaxs[fr->callno], &ies);
--
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