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don't block waiting for the Festival server forever when it goes away (issue #5882)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@7269 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2005-12-01 23:49:44 +00:00
parent 0d3fc8d103
commit acaf8c9cc9
1 changed files with 13 additions and 1 deletions
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14
apps/app_festival.c
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@@ -455,8 +455,20 @@ static int festival_exec(struct ast_channel *chan, void *vdata)
/* This assumes only one waveform will come back, also LP is unlikely */
wave = 0;
do {
int read_data;
for (n=0; n < 3; )
n += read(fd,ack+n,3-n);
{
read_data = read(fd,ack+n,3-n);
/* this avoids falling in infinite loop
* in case that festival server goes down
* */
if ( read_data == -1 )
{
ast_log(LOG_WARNING,"Unable to read from cache/festival fd");
return -1;
}
n += read_data;
}
ack[3] = '\0';
if (strcmp(ack,"WV\n") == 0) { /* receive a waveform */
ast_log(LOG_DEBUG,"Festival WV command\n");