mbed_stats.c

00001 #include "mbed_stats.h"
00002 #include <string.h>
00003 #include <stdlib.h>
00004 #include "mbed_assert.h"
00005 
00006 #if MBED_CONF_RTOS_PRESENT
00007 #include "cmsis_os2.h"
00008 #endif
00009 
00010 // note: mbed_stats_heap_get defined in mbed_alloc_wrappers.cpp
00011 
00012 void mbed_stats_stack_get(mbed_stats_stack_t *stats)
00013 {
00014     memset(stats, 0, sizeof(mbed_stats_stack_t));
00015 
00016 #if MBED_STACK_STATS_ENABLED && MBED_CONF_RTOS_PRESENT
00017     uint32_t thread_n = osThreadGetCount();
00018     unsigned i;
00019     osThreadId_t *threads;
00020 
00021     threads = malloc(sizeof(osThreadId_t) * thread_n);
00022     MBED_ASSERT(threads != NULL);
00023 
00024     osKernelLock();
00025     thread_n = osThreadEnumerate(threads, thread_n);
00026 
00027     for(i = 0; i < thread_n; i++) {
00028         uint32_t stack_size = osThreadGetStackSize(threads[i]);
00029         stats->max_size += stack_size - osThreadGetStackSpace(threads[i]);
00030         stats->reserved_size += stack_size;
00031         stats->stack_cnt++;
00032     }
00033     osKernelUnlock();
00034 
00035     free(threads);
00036 #endif
00037 }
00038 
00039 size_t mbed_stats_stack_get_each(mbed_stats_stack_t *stats, size_t count)
00040 {
00041     memset(stats, 0, count*sizeof(mbed_stats_stack_t));
00042     size_t i = 0;
00043 
00044 #if MBED_STACK_STATS_ENABLED && MBED_CONF_RTOS_PRESENT
00045     osThreadId_t *threads;
00046 
00047     threads = malloc(sizeof(osThreadId_t) * count);
00048     MBED_ASSERT(threads != NULL);
00049 
00050     osKernelLock();
00051     count = osThreadEnumerate(threads, count);
00052 
00053     for(i = 0; i < count; i++) {
00054         uint32_t stack_size = osThreadGetStackSize(threads[i]);
00055         stats[i].max_size = stack_size - osThreadGetStackSpace(threads[i]);
00056         stats[i].reserved_size = stack_size;
00057         stats[i].thread_id = (uint32_t)threads[i];
00058         stats[i].stack_cnt = 1;
00059     }
00060     osKernelUnlock();
00061 
00062     free(threads);
00063 #endif
00064 
00065     return i;
00066 }
00067 
00068 #if MBED_STACK_STATS_ENABLED && !MBED_CONF_RTOS_PRESENT
00069 #warning Stack statistics are currently not supported without the rtos.
00070 #endif
00071