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serial-port: open port exclusively

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This commit is contained in:
Dan Williams
2009-06-25 16:45:49 -04:00
parent bb50295e5e
commit 112f2da19d
1 changed files with 8 additions and 0 deletions
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8
src/mm-serial-port.c
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@@ -671,6 +671,14 @@ mm_serial_port_open (MMSerialPort *self, GError **error)
return FALSE; return FALSE;
} }
if (ioctl (priv->fd, TIOCEXCL) < 0) {
g_set_error (error, MM_SERIAL_ERROR, MM_SERIAL_OPEN_FAILED,
"Could not lock serial device %s: %s", device, strerror (errno));
close (priv->fd);
priv->fd = -1;
return FALSE;
}
if (ioctl (priv->fd, TCGETA, &priv->old_t) < 0) { if (ioctl (priv->fd, TCGETA, &priv->old_t) < 0) {
g_set_error (error, MM_SERIAL_ERROR, MM_SERIAL_OPEN_FAILED, g_set_error (error, MM_SERIAL_ERROR, MM_SERIAL_OPEN_FAILED,
"Could not open serial device %s: %s", device, strerror (errno)); "Could not open serial device %s: %s", device, strerror (errno));