| /* |
| * Copyright (c) 2016, The OpenThread Authors. |
| * 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. |
| * 3. Neither the name of the copyright holder nor the |
| * names of its contributors may be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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. |
| */ |
| |
| #include "platform-posix.h" |
| |
| #include <stdbool.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include <openthread/platform/alarm.h> |
| #include <openthread/platform/diag.h> |
| |
| static bool s_is_running = false; |
| static uint32_t s_alarm = 0; |
| static struct timeval s_start; |
| |
| void platformAlarmInit(void) |
| { |
| gettimeofday(&s_start, NULL); |
| } |
| |
| uint32_t otPlatAlarmGetNow(void) |
| { |
| struct timeval tv; |
| |
| gettimeofday(&tv, NULL); |
| timersub(&tv, &s_start, &tv); |
| |
| return (uint32_t)((tv.tv_sec * 1000) + (tv.tv_usec / 1000)); |
| } |
| |
| void otPlatAlarmStartAt(otInstance *aInstance, uint32_t t0, uint32_t dt) |
| { |
| (void)aInstance; |
| s_alarm = t0 + dt; |
| s_is_running = true; |
| } |
| |
| void otPlatAlarmStop(otInstance *aInstance) |
| { |
| (void)aInstance; |
| s_is_running = false; |
| } |
| |
| void platformAlarmUpdateTimeout(struct timeval *aTimeout) |
| { |
| int32_t remaining; |
| |
| if (aTimeout == NULL) |
| { |
| return; |
| } |
| |
| if (s_is_running) |
| { |
| remaining = (int32_t)(s_alarm - otPlatAlarmGetNow()); |
| |
| if (remaining > 0) |
| { |
| aTimeout->tv_sec = remaining / 1000; |
| aTimeout->tv_usec = (remaining % 1000) * 1000; |
| } |
| else |
| { |
| aTimeout->tv_sec = 0; |
| aTimeout->tv_usec = 0; |
| } |
| } |
| else |
| { |
| aTimeout->tv_sec = 10; |
| aTimeout->tv_usec = 0; |
| } |
| } |
| |
| void platformAlarmProcess(otInstance *aInstance) |
| { |
| int32_t remaining; |
| |
| if (s_is_running) |
| { |
| remaining = (int32_t)(s_alarm - otPlatAlarmGetNow()); |
| |
| if (remaining <= 0) |
| { |
| s_is_running = false; |
| |
| #if OPENTHREAD_ENABLE_DIAG |
| |
| if (otPlatDiagModeGet()) |
| { |
| otPlatDiagAlarmFired(aInstance); |
| } |
| else |
| #endif |
| { |
| otPlatAlarmFired(aInstance); |
| } |
| } |
| } |
| } |