diff options
Diffstat (limited to 'contrib/openbsm/compat')
-rw-r--r-- | contrib/openbsm/compat/clock_gettime.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/contrib/openbsm/compat/clock_gettime.h b/contrib/openbsm/compat/clock_gettime.h new file mode 100644 index 0000000..fe6a806 --- /dev/null +++ b/contrib/openbsm/compat/clock_gettime.h @@ -0,0 +1,54 @@ +/*- + * Copyright (c) 2006 Robert N. M. Watson + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $P4: //depot/projects/trustedbsd/openbsm/compat/clock_gettime.h#2 $ + */ + +/* + * Compatibility routines for clock_gettime(CLOCK_REALTIME, ...) for systems + * that don't have it. We don't use clockid_t in order to avoid conflicts + * with the native OS if it has one but not clock_gettime(). We also assume + * that the sys/time.h include has already happened at this point, so we have + * access to gettimeofday(). + */ +#include <errno.h> + +#define CLOCK_REALTIME 0x2d4e1588 + +static inline int +clock_gettime(int clock_id, struct timespec *ts) +{ + struct timeval tv; + + if (clock_id != CLOCK_REALTIME) { + errno = EINVAL; + return (-1); + } + if (gettimeofday(&tv, NULL) < 0) + return (-1); + ts->tv_sec = tv.tv_sec; + ts->tv_nsec = tv.tv_usec * 1000; + return (0); +} |