diff options
| author | Richard Braun <rbraun@sceen.net> | 2014-06-30 21:28:19 +0200 |
|---|---|---|
| committer | Richard Braun <rbraun@sceen.net> | 2014-06-30 21:31:15 +0200 |
| commit | 2588cd19e83ff454a7fc99e68f1d612945504b72 (patch) | |
| tree | a3fd7b45edff59e20f758ed37f436214faccc095 /libpipe/pipe.c | |
| parent | 6ad2a33e7fc5cda05eefdec789f4a2033645ebbe (diff) | |
libpipe: fix spurious calls to pipe_send
* libpipe/pipe.c (pipe_send): Skip processing if there is nothing to send.
Diffstat (limited to 'libpipe/pipe.c')
| -rw-r--r-- | libpipe/pipe.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libpipe/pipe.c b/libpipe/pipe.c index f9300e7c..b7ee8515 100644 --- a/libpipe/pipe.c +++ b/libpipe/pipe.c @@ -316,7 +316,11 @@ pipe_send (struct pipe *pipe, int noblock, void *source, mach_port_t *ports, size_t num_ports, size_t *amount) { - error_t err = 0; + error_t err; + + /* Nothing to do. */ + if (data_len == 0 && control_len == 0 && num_ports == 0) + return 0; err = pipe_wait_writable (pipe, noblock); if (err) |