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Change cleanup ordering in filestream destructor.

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This patch came about due to a problem observed where wav files had an
empty header.  The header is supposed to be updated in wav_close().  It
turns out that this was broken when the cache_record_files option from
asterisk.conf was enabled.  The cleanup code was moving the file to its
final destination *before* running the close() method of the file
destructor, so the header didn't get updated.

Another problem here is that the move was being done before actually
closing the FILE *.

Finally, the last bug fixed here is that I noticed that wav_close()
checks for stream->filename to be non-NULL.  In the previous cleanup
order, it's checking a pointer to freed memory.  This doesn't actually
cause anything to break, but it's treading on dangerous waters.  Now the
free() of stream->filename is happening after the format module's
close() method gets called, so it's safer.

Review: https://reviewboard.asterisk.org/r/2286/
........

Merged revisions 380210 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 380211 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@380212 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Russell Bryant
2013-01-28 01:58:41 +00:00
parent dfdf3d9909
commit 5d41d31621
1 changed files with 9 additions and 6 deletions
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15
main/file.c
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@@ -329,6 +329,15 @@ static void filestream_destructor(void *arg)
if (f->trans) if (f->trans)
ast_translator_free_path(f->trans); ast_translator_free_path(f->trans);
if (f->fmt->close) {
void (*closefn)(struct ast_filestream *) = f->fmt->close;
closefn(f);
}
if (f->f) {
fclose(f->f);
}
if (f->realfilename && f->filename) { if (f->realfilename && f->filename) {
pid = ast_safe_fork(0); pid = ast_safe_fork(0);
if (!pid) { if (!pid) {
@@ -345,12 +354,6 @@ static void filestream_destructor(void *arg)
free(f->filename); free(f->filename);
if (f->realfilename) if (f->realfilename)
free(f->realfilename); free(f->realfilename);
if (f->fmt->close) {
void (*closefn)(struct ast_filestream *) = f->fmt->close;
closefn(f);
}
if (f->f)
fclose(f->f);
if (f->vfs) if (f->vfs)
ast_closestream(f->vfs); ast_closestream(f->vfs);
if (f->write_buffer) { if (f->write_buffer) {