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author | Greg Ward <gward@python.net> | 2003-03-11 16:53:13 +0000 |
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committer | Greg Ward <gward@python.net> | 2003-03-11 16:53:13 +0000 |
commit | e12739c236cdadd7ebf2c1f1c82669d212abfeae (patch) | |
tree | dbb89e80c881fea70af2a84c3f9761bd16f4886a /Modules/ossaudiodev.c | |
parent | 10fc650e5820f5a713f1399974d49ecfaec4ee89 (diff) | |
download | cpython-e12739c236cdadd7ebf2c1f1c82669d212abfeae.tar.gz |
Open with O_NONBLOCK to avoid hanging on open().
Diffstat (limited to 'Modules/ossaudiodev.c')
-rw-r--r-- | Modules/ossaudiodev.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Modules/ossaudiodev.c b/Modules/ossaudiodev.c index 2f4693db56..077784088d 100644 --- a/Modules/ossaudiodev.c +++ b/Modules/ossaudiodev.c @@ -131,7 +131,11 @@ newossobject(PyObject *arg) basedev = "/dev/dsp"; } - if ((fd = open(basedev, imode)) == -1) { + /* Open with O_NONBLOCK to avoid hanging on devices that only allow + one open at a time. This does *not* affect later I/O; OSS + provides a special ioctl() for non-blocking read/write, which is + exposed via oss_nonblock() below. */ + if ((fd = open(basedev, imode|O_NONBLOCK)) == -1) { PyErr_SetFromErrnoWithFilename(PyExc_IOError, basedev); return NULL; } |