6c0488da74
Running xTimerChangePeriod and xTimerStart on the expired timer from a callback function returns successfully, but doesn't actually set the timer.
79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
#include "timers.h"
|
|
#include <stdexcept>
|
|
|
|
uint32_t timer_callback_wrapper(uint32_t interval, void *param) {
|
|
TimerHandle_t *xTimer = static_cast<TimerHandle_t*>(param);
|
|
if (!xTimer->running) {
|
|
return 0;
|
|
}
|
|
xTimer->running = false;
|
|
xTimer->pxCallbackFunction(*xTimer);
|
|
if (xTimer->auto_reload) {
|
|
return xTimer->timer_period_in_ms;
|
|
}
|
|
return 0; // cancel timer
|
|
}
|
|
|
|
void *pvTimerGetTimerID(const TimerHandle_t &xTimer) { // return pvTimerID from xTimerCreate
|
|
return xTimer.pvTimerID;
|
|
}
|
|
void vTimerSetTimerID(TimerHandle_t &xTimer, void *pvNewID) {
|
|
xTimer.pvTimerID = pvNewID;
|
|
}
|
|
|
|
TimerHandle_t xTimerCreate(const char * const pcTimerName, /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
|
|
const TickType_t xTimerPeriodInTicks,
|
|
const UBaseType_t uxAutoReload, // false=one-shot, true=recurring
|
|
void * const pvTimerID, // pointer passed to callback
|
|
TimerCallbackFunction_t pxCallbackFunction)
|
|
{
|
|
TimerHandle_t xTimer;
|
|
xTimer.timer_period_in_ms = pdTICKS_TO_MS(xTimerPeriodInTicks);
|
|
xTimer.auto_reload = uxAutoReload == pdTRUE;
|
|
xTimer.timer_name = pcTimerName;
|
|
xTimer.pvTimerID = pvTimerID;
|
|
xTimer.pxCallbackFunction = pxCallbackFunction;
|
|
return xTimer;
|
|
}
|
|
|
|
bool xTimerStart(TimerHandle_t &xTimer, TickType_t xTicksToWait) {
|
|
xTimer.running = true;
|
|
xTimer.expiry_time = xTaskGetTickCount() + pdMS_TO_TICKS(xTimer.timer_period_in_ms);
|
|
xTimer.timer_id = SDL_AddTimer(xTimer.timer_period_in_ms, timer_callback_wrapper, &xTimer);
|
|
if (xTimer.pxCallbackFunction == nullptr) {
|
|
throw std::runtime_error("xTimerStart called before xTimerCreate");
|
|
}
|
|
return xTimer.timer_id != 0;
|
|
}
|
|
|
|
bool xTimerChangePeriod(TimerHandle_t &xTimer, TickType_t xNewPeriod, TickType_t xTicksToWait) {
|
|
if (xTimer.running) {
|
|
xTimerStop(xTimer, xTicksToWait);
|
|
xTimer.timer_period_in_ms = pdTICKS_TO_MS(xNewPeriod);
|
|
xTimerStart(xTimer, xTicksToWait);
|
|
} else {
|
|
xTimer.timer_period_in_ms = pdTICKS_TO_MS(xNewPeriod);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool xTimerReset(TimerHandle_t &xTimer, TickType_t xTicksToWait) {
|
|
if (xTimer.running) {
|
|
xTimerStop(xTimer, xTicksToWait);
|
|
}
|
|
return xTimerStart(xTimer, xTicksToWait);
|
|
}
|
|
|
|
bool xTimerStop(TimerHandle_t &xTimer, TickType_t xTicksToWait) {
|
|
xTimer.running = false;
|
|
return SDL_RemoveTimer(xTimer.timer_id);
|
|
}
|
|
|
|
TickType_t xTimerGetExpiryTime( TimerHandle_t xTimer )
|
|
{
|
|
return xTimer.expiry_time;
|
|
}
|
|
|
|
BaseType_t xTimerIsTimerActive( TimerHandle_t xTimer ) {
|
|
return xTimer.running;
|
|
}
|