diff options
Diffstat (limited to 'erts/emulator/sys/ose/sys_time.c')
-rw-r--r-- | erts/emulator/sys/ose/sys_time.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/erts/emulator/sys/ose/sys_time.c b/erts/emulator/sys/ose/sys_time.c new file mode 100644 index 0000000000..5dac75956a --- /dev/null +++ b/erts/emulator/sys/ose/sys_time.c @@ -0,0 +1,57 @@ +/* + * %CopyrightBegin% + * + * Copyright Ericsson AB 2005-2009. All Rights Reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * %CopyrightEnd% + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include "sys.h" +#include "global.h" + +/******************* Routines for time measurement *********************/ + +int erts_ticks_per_sec = 0; /* Will be SYS_CLK_TCK in erl_unix_sys.h */ + +int sys_init_time(void) +{ + return SYS_CLOCK_RESOLUTION; +} + +clock_t sys_times(SysTimes *now) { + now->tms_utime = now->tms_stime = now->tms_cutime = now->tms_cstime = 0; + return 0; +} + +static OSTICK last_tick_count = 0; +static SysHrTime wrap = 0; +static OSTICK us_per_tick; + +void sys_init_hrtime() { + us_per_tick = system_tick(); +} + +SysHrTime sys_gethrtime() { + OSTICK ticks = get_ticks(); + if (ticks < (SysHrTime) last_tick_count) { + wrap += 1ULL << 32; + } + last_tick_count = ticks; + return ((((SysHrTime) ticks) + wrap) * 1000*us_per_tick); +} |