joey shelton / LED_Demo2

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Dependencies:   MAX44000 PWM_Tone_Library nexpaq_mdk

Fork of LED_Demo by joey shelton

mbd_os/TESTS/mbedmicro-rtos-mbed/malloc/main.cpp@1:55a6170b404f, 2016-09-17 (annotated)

Committer:
nexpaq
Date:
Sat Sep 17 16:32:05 2016 +0000
Revision:
1:55a6170b404f
checking in for sharing

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nexpaq 1:55a6170b404f 1 #include "mbed.h"
nexpaq 1:55a6170b404f 2 #include "test_env.h"
nexpaq 1:55a6170b404f 3 #include "rtos.h"
nexpaq 1:55a6170b404f 4
nexpaq 1:55a6170b404f 5 #if defined(MBED_RTOS_SINGLE_THREAD)
nexpaq 1:55a6170b404f 6 #error [NOT_SUPPORTED] test not supported
nexpaq 1:55a6170b404f 7 #endif
nexpaq 1:55a6170b404f 8
nexpaq 1:55a6170b404f 9 #define NUM_THREADS 5
nexpaq 1:55a6170b404f 10 #define THREAD_STACK_SIZE 256
nexpaq 1:55a6170b404f 11
nexpaq 1:55a6170b404f 12 DigitalOut led1(LED1);
nexpaq 1:55a6170b404f 13 volatile bool should_exit = false;
nexpaq 1:55a6170b404f 14 volatile bool allocation_failure = false;
nexpaq 1:55a6170b404f 15
nexpaq 1:55a6170b404f 16 void task_using_malloc(void)
nexpaq 1:55a6170b404f 17 {
nexpaq 1:55a6170b404f 18 void* data;
nexpaq 1:55a6170b404f 19 while (1) {
nexpaq 1:55a6170b404f 20 // Repeatedly allocate and free memory
nexpaq 1:55a6170b404f 21 data = malloc(100);
nexpaq 1:55a6170b404f 22 if (data != NULL) {
nexpaq 1:55a6170b404f 23 memset(data, 0, 100);
nexpaq 1:55a6170b404f 24 } else {
nexpaq 1:55a6170b404f 25 allocation_failure = true;
nexpaq 1:55a6170b404f 26 }
nexpaq 1:55a6170b404f 27 free(data);
nexpaq 1:55a6170b404f 28
nexpaq 1:55a6170b404f 29 if (should_exit) {
nexpaq 1:55a6170b404f 30 return;
nexpaq 1:55a6170b404f 31 }
nexpaq 1:55a6170b404f 32 }
nexpaq 1:55a6170b404f 33 }
nexpaq 1:55a6170b404f 34
nexpaq 1:55a6170b404f 35 int main()
nexpaq 1:55a6170b404f 36 {
nexpaq 1:55a6170b404f 37 Thread *thread_list[NUM_THREADS];
nexpaq 1:55a6170b404f 38 int test_time = 15;
nexpaq 1:55a6170b404f 39 GREENTEA_SETUP(20, "default_auto");
nexpaq 1:55a6170b404f 40
nexpaq 1:55a6170b404f 41 // Allocate threads for the test
nexpaq 1:55a6170b404f 42 for (int i = 0; i < NUM_THREADS; i++) {
nexpaq 1:55a6170b404f 43 thread_list[i] = new Thread(osPriorityNormal, THREAD_STACK_SIZE);
nexpaq 1:55a6170b404f 44 if (NULL == thread_list[i]) {
nexpaq 1:55a6170b404f 45 allocation_failure = true;
nexpaq 1:55a6170b404f 46 }
nexpaq 1:55a6170b404f 47 thread_list[i]->start(task_using_malloc);
nexpaq 1:55a6170b404f 48 }
nexpaq 1:55a6170b404f 49
nexpaq 1:55a6170b404f 50 // Give the test time to run
nexpaq 1:55a6170b404f 51 while (test_time) {
nexpaq 1:55a6170b404f 52 led1 = !led1;
nexpaq 1:55a6170b404f 53 Thread::wait(1000);
nexpaq 1:55a6170b404f 54 test_time--;
nexpaq 1:55a6170b404f 55 }
nexpaq 1:55a6170b404f 56
nexpaq 1:55a6170b404f 57 // Join and delete all threads
nexpaq 1:55a6170b404f 58 should_exit = 1;
nexpaq 1:55a6170b404f 59 for (int i = 0; i < NUM_THREADS; i++) {
nexpaq 1:55a6170b404f 60 if (NULL == thread_list[i]) {
nexpaq 1:55a6170b404f 61 continue;
nexpaq 1:55a6170b404f 62 }
nexpaq 1:55a6170b404f 63 thread_list[i]->join();
nexpaq 1:55a6170b404f 64 delete thread_list[i];
nexpaq 1:55a6170b404f 65 }
nexpaq 1:55a6170b404f 66
nexpaq 1:55a6170b404f 67 GREENTEA_TESTSUITE_RESULT(!allocation_failure);
nexpaq 1:55a6170b404f 68 }