diff options
Diffstat (limited to 'utils/sys_time.h')
| -rw-r--r-- | utils/sys_time.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/utils/sys_time.h b/utils/sys_time.h new file mode 100644 index 000000000..82d88fd25 --- /dev/null +++ b/utils/sys_time.h @@ -0,0 +1,53 @@ +/* + * Copyright 2016 Vincent Sanders <vince@netsurf-browser.org> + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * NetSurf is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * NetSurf is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/** + * \file + * \brief BSD style time functions + */ + +#ifndef _NETSURF_UTILS_SYS_TIME_H_ +#define _NETSURF_UTILS_SYS_TIME_H_ + +#include <sys/time.h> + +#ifndef timeradd +#define timeradd(a, aa, result) \ + do { \ + (result)->tv_sec = (a)->tv_sec + (aa)->tv_sec; \ + (result)->tv_usec = (a)->tv_usec + (aa)->tv_usec; \ + if ((result)->tv_usec >= 1000000) { \ + ++(result)->tv_sec; \ + (result)->tv_usec -= 1000000; \ + } \ + } while (0) +#endif + +#ifndef timersub +#define timersub(a, aa, result) \ + do { \ + (result)->tv_sec = (a)->tv_sec - (aa)->tv_sec; \ + (result)->tv_usec = (a)->tv_usec - (aa)->tv_usec; \ + if ((result)->tv_usec < 0) { \ + --(result)->tv_sec; \ + (result)->tv_usec += 1000000; \ + } \ + } while (0) +#endif + +#endif |