Diff: mbed-os/platform/mbed_stats.c

Revision:

0:02dd72d1d465

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os/platform/mbed_stats.c	Tue Apr 24 11:45:18 2018 +0000
@@ -0,0 +1,70 @@
+#include "mbed_stats.h"
+#include <string.h>
+#include <stdlib.h>
+#include "mbed_assert.h"
+
+#if MBED_CONF_RTOS_PRESENT
+#include "cmsis_os2.h"
+#endif
+
+// note: mbed_stats_heap_get defined in mbed_alloc_wrappers.cpp
+
+void mbed_stats_stack_get(mbed_stats_stack_t *stats)
+{
+    memset(stats, 0, sizeof(mbed_stats_stack_t));
+
+#if MBED_STACK_STATS_ENABLED && MBED_CONF_RTOS_PRESENT
+    uint32_t thread_n = osThreadGetCount();
+    unsigned i;
+    osThreadId_t *threads;
+
+    threads = malloc(sizeof(osThreadId_t) * thread_n);
+    MBED_ASSERT(threads != NULL);
+
+    osKernelLock();
+    thread_n = osThreadEnumerate(threads, thread_n);
+
+    for(i = 0; i < thread_n; i++) {
+        uint32_t stack_size = osThreadGetStackSize(threads[i]);
+        stats->max_size += stack_size - osThreadGetStackSpace(threads[i]);
+        stats->reserved_size += stack_size;
+        stats->stack_cnt++;
+    }
+    osKernelUnlock();
+
+    free(threads);
+#endif
+}
+
+size_t mbed_stats_stack_get_each(mbed_stats_stack_t *stats, size_t count)
+{
+    memset(stats, 0, count*sizeof(mbed_stats_stack_t));
+    size_t i = 0;
+
+#if MBED_STACK_STATS_ENABLED && MBED_CONF_RTOS_PRESENT
+    osThreadId_t *threads;
+
+    threads = malloc(sizeof(osThreadId_t) * count);
+    MBED_ASSERT(threads != NULL);
+
+    osKernelLock();
+    count = osThreadEnumerate(threads, count);
+
+    for(i = 0; i < count; i++) {
+        uint32_t stack_size = osThreadGetStackSize(threads[i]);
+        stats[i].max_size = stack_size - osThreadGetStackSpace(threads[i]);
+        stats[i].reserved_size = stack_size;
+        stats[i].thread_id = (uint32_t)threads[i];
+        stats[i].stack_cnt = 1;
+    }
+    osKernelUnlock();
+
+    free(threads);
+#endif
+
+    return i;
+}
+
+#if MBED_STACK_STATS_ENABLED && !MBED_CONF_RTOS_PRESENT
+#warning Stack statistics are currently not supported without the rtos.
+#endif