| /************************************************************************** |
| * |
| * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| **************************************************************************/ |
| |
| /** |
| * @file |
| * OS independent time-manipulation functions. |
| * |
| * @author Jose Fonseca <jrfonseca@tungstengraphics.com> |
| */ |
| |
| #ifndef U_TIME_H_ |
| #define U_TIME_H_ |
| |
| |
| #include "pipe/p_config.h" |
| |
| #include "os/os_time.h" |
| |
| #include "pipe/p_compiler.h" |
| |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| |
| /** |
| * Time abstraction. |
| * |
| * Do not access this structure directly. Use the provided function instead. |
| */ |
| struct util_time |
| { |
| int64_t counter; |
| }; |
| |
| |
| PIPE_DEPRECATED |
| static INLINE void |
| util_time_get(struct util_time *t) |
| { |
| t->counter = os_time_get(); |
| } |
| |
| |
| /** |
| * Return t2 = t1 + usecs |
| */ |
| PIPE_DEPRECATED |
| static INLINE void |
| util_time_add(const struct util_time *t1, |
| int64_t usecs, |
| struct util_time *t2) |
| { |
| t2->counter = t1->counter + usecs; |
| } |
| |
| |
| /** |
| * Return difference between times, in microseconds |
| */ |
| PIPE_DEPRECATED |
| static INLINE int64_t |
| util_time_diff(const struct util_time *t1, |
| const struct util_time *t2) |
| { |
| return t2->counter - t1->counter; |
| } |
| |
| |
| /** |
| * Compare two time values. |
| * |
| * Not publicly available because it does not take in account wrap-arounds. |
| * Use util_time_timeout instead. |
| */ |
| static INLINE int |
| _util_time_compare(const struct util_time *t1, |
| const struct util_time *t2) |
| { |
| if (t1->counter < t2->counter) |
| return -1; |
| else if(t1->counter > t2->counter) |
| return 1; |
| else |
| return 0; |
| } |
| |
| |
| /** |
| * Returns non-zero when the timeout expires. |
| */ |
| PIPE_DEPRECATED |
| static INLINE boolean |
| util_time_timeout(const struct util_time *start, |
| const struct util_time *end, |
| const struct util_time *curr) |
| { |
| return os_time_timeout(start->counter, end->counter, curr->counter); |
| } |
| |
| |
| /** |
| * Return current time in microseconds |
| */ |
| PIPE_DEPRECATED |
| static INLINE int64_t |
| util_time_micros(void) |
| { |
| return os_time_get(); |
| } |
| |
| |
| PIPE_DEPRECATED |
| static INLINE void |
| util_time_sleep(int64_t usecs) |
| { |
| os_time_sleep(usecs); |
| } |
| |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* U_TIME_H_ */ |