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| author | Marcus Meissner <marcus@jet.franken.de> | 2006-04-17 19:05:20 +0000 |
|---|---|---|
| committer | Marcus Meissner <marcus@jet.franken.de> | 2006-04-17 19:05:20 +0000 |
| commit | bdc9109d2a257d42d796c140ed5d96ccff27f067 (patch) | |
| tree | 98353d65acf82770f643238fe73f7b0a50e69b14 | |
| parent | de3ef8841044d864a8e33ecea48fc660ec4ff23c (diff) | |
| download | libgphoto2-bdc9109d2a257d42d796c140ed5d96ccff27f067.tar.gz | |
stat the devices before opening, to safe time on locking attempts
(saves 0.6 seconds with SUSE resmgr on a 500mhz machine)
git-svn-id: https://svn.code.sf.net/p/gphoto/code/trunk/libgphoto2@8745 67ed7778-7388-44ab-90cf-0a291f65f57c
| -rw-r--r-- | libgphoto2_port/serial/unix.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libgphoto2_port/serial/unix.c b/libgphoto2_port/serial/unix.c index 515cb9a25..66bdf2c24 100644 --- a/libgphoto2_port/serial/unix.c +++ b/libgphoto2_port/serial/unix.c @@ -335,6 +335,10 @@ gp_port_library_list (GPPortInfoList *list) if (r) continue; #endif + /* Very first of all, if the device node is not there, + * there is no need to try locking. */ + if ((stat (path, &s) == -1) && ((errno == ENOENT) || (errno == ENODEV))) + continue; /* First of all, try to lock the device */ if (gp_port_serial_lock (NULL, path) < 0) |