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/**
* Copyright (c) 2015 Runtime Inc.
*
* 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.
*/
#include "os/os.h"
#include "os/queue.h"
os_time_t g_os_time = 0;
os_time_t
os_time_get(void)
{
return (g_os_time);
}
/**
* Called for every single tick by the architecture specific functions.
*
* Increases the os_time by 1 tick.
*/
void
os_time_tick(void)
{
os_sr_t sr;
OS_ENTER_CRITICAL(sr);
++g_os_time;
OS_EXIT_CRITICAL(sr);
}
/**
* Puts the current task to sleep for the specified number of os ticks. There
* is no delay if ticks is <= 0.
*
* @param osticks Number of ticks to delay (<= 0 means no delay).
*/
void
os_time_delay(int32_t osticks)
{
os_sr_t sr;
if (osticks > 0) {
OS_ENTER_CRITICAL(sr);
os_sched_sleep(os_sched_get_current_task(), (os_time_t)osticks);
OS_EXIT_CRITICAL(sr);
os_sched(NULL, 0);
}
}
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