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res_musiconhold: Fix MOH restarting where it left off from the last hold.

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Restore code removed by https://reviewboard.asterisk.org/r/3536/ that
introduced a regression that prevents MOH from restarting were it left off
the last time.

ASTERISK-24019 #close
Reported by: Jason Richards
Patches:
      jira_asterisk_24019_v1.8.patch (license #5621) patch uploaded by rmudgett

Review: https://reviewboard.asterisk.org/r/3928/
........

Merged revisions 421976 from http://svn.asterisk.org/svn/asterisk/branches/1.8


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/11@421977 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
2014-08-25 16:07:28 +00:00
parent 905f1f61e1
commit b3572f3828
1 changed files with 8 additions and 5 deletions
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13
res/res_musiconhold.c
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@@ -162,6 +162,8 @@ struct moh_files_state {
int sample_queue;
int pos;
int save_pos;
int save_total;
char name[MAX_MUSICCLASS];
char save_pos_filename[PATH_MAX];
};
@@ -452,11 +454,9 @@ static void *moh_files_alloc(struct ast_channel *chan, void *params)
}
}
/* class is reffed, so we can safely compare it against the (possibly
* recently unreffed) state->class. The unref was done after the ref
* of class, so we're sure that they won't point to the same memory
* by accident. */
if (state->class != class) {
/* Resume MOH from where we left off last time or start from scratch? */
if (state->save_total != class->total_files || strcmp(state->name, class->name) != 0) {
/* Start MOH from scratch. */
memset(state, 0, sizeof(*state));
if (ast_test_flag(class, MOH_RANDOMIZE) && class->total_files) {
state->pos = ast_random() % class->total_files;
@@ -466,6 +466,9 @@ static void *moh_files_alloc(struct ast_channel *chan, void *params)
state->class = mohclass_ref(class, "Reffing music class for channel");
ast_format_copy(&state->origwfmt, ast_channel_writeformat(chan));
ast_format_copy(&state->mohwfmt, ast_channel_writeformat(chan));
/* For comparison on restart of MOH (see above) */
ast_copy_string(state->name, class->name, sizeof(state->name));
state->save_total = class->total_files;
ast_verb(3, "Started music on hold, class '%s', on %s\n", class->name, ast_channel_name(chan));