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| author | Max Kellermann <max@duempel.org> | 2009-10-23 09:15:51 +0200 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2009-10-23 09:15:51 +0200 |
| commit | ede828c910f546dfe8ca4b07b678e9a2806c6889 (patch) | |
| tree | d64ebd0c846f87908fc7531b5503f6b5d88b635a /src/mixer_control.c | |
| parent | 7dd172efecca315cb5dcbf2e27d06f6a72d361d1 (diff) | |
| download | mpd-ede828c910f546dfe8ca4b07b678e9a2806c6889.tar.gz mpd-ede828c910f546dfe8ca4b07b678e9a2806c6889.tar.xz mpd-ede828c910f546dfe8ca4b07b678e9a2806c6889.zip | |
mixer_control: allow methods "open" and "close" to be NULL
It's possible to have a mixer implementation which does not explicitly
need the methods open() and close().
Diffstat (limited to 'src/mixer_control.c')
| -rw-r--r-- | src/mixer_control.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/mixer_control.c b/src/mixer_control.c index df1e43003..7def51cb2 100644 --- a/src/mixer_control.c +++ b/src/mixer_control.c @@ -66,6 +66,8 @@ mixer_open(struct mixer *mixer, GError **error_r) if (mixer->open) success = true; + else if (mixer->plugin->open == NULL) + success = mixer->open = true; else success = mixer->open = mixer->plugin->open(mixer, error_r); @@ -83,7 +85,9 @@ mixer_close_internal(struct mixer *mixer) assert(mixer->plugin != NULL); assert(mixer->open); - mixer->plugin->close(mixer); + if (mixer->plugin->close != NULL) + mixer->plugin->close(mixer); + mixer->open = false; } |