esp-idf/components/freertos/test/test_tasks_snapshot.c

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/*
Test FreeRTOS support for core dump.
*/
#include <stdio.h>
#include "soc/cpu.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "unity.h"
#include "sdkconfig.h"
#define TEST_MAX_TASKS_NUM 32
/* simple test to check that in normal conditions uxTaskGetSnapshotAll does not generate exception */
TEST_CASE("Tasks snapshot", "[freertos]")
{
TaskSnapshot_t tasks[TEST_MAX_TASKS_NUM];
UBaseType_t tcb_sz;
#ifndef CONFIG_FREERTOS_UNICORE
int other_core_id = xPortGetCoreID() == 0 ? 1 : 0;
#endif
// uxTaskGetSnapshotAll is supposed to be called when all tasks on both CPUs are
// inactive and can not alter FreeRTOS internal tasks lists, e.g. from panic handler
unsigned state = portENTER_CRITICAL_NESTED();
#ifndef CONFIG_FREERTOS_UNICORE
esp_cpu_stall(other_core_id);
#endif
UBaseType_t task_num = uxTaskGetSnapshotAll(tasks, TEST_MAX_TASKS_NUM, &tcb_sz);
#ifndef CONFIG_FREERTOS_UNICORE
esp_cpu_unstall(other_core_id);
#endif
portEXIT_CRITICAL_NESTED(state);
printf("Dumped %d tasks. TCB size %d\n", task_num, tcb_sz);
TEST_ASSERT_NOT_EQUAL(0, task_num);
TEST_ASSERT_NOT_EQUAL(0, tcb_sz);
}