Furi: heap walker

applications/services/cli/cli_commands.c

@@ -429,12 +429,54 @@ void cli_command_free(Cli* cli, FuriString* args, void* context) {
     printf("Maximum pool block: %zu\r\n", memmgr_pool_get_max_block());
 }
 
+typedef struct {
+    void* addr;
+    size_t size;
+} FreeBlockInfo;
+
+#define FREE_BLOCK_INFO_MAX 128
+
+typedef struct {
+    FreeBlockInfo free_blocks[FREE_BLOCK_INFO_MAX];
+    size_t free_blocks_count;
+} FreeBlockContext;
+
+static bool free_block_walker(void* pointer, size_t size, bool used, void* context) {
+    FreeBlockContext* free_blocks = (FreeBlockContext*)context;
+    if(!used) {
+        if(free_blocks->free_blocks_count < FREE_BLOCK_INFO_MAX) {
+            free_blocks->free_blocks[free_blocks->free_blocks_count].addr = pointer;
+            free_blocks->free_blocks[free_blocks->free_blocks_count].size = size;
+            free_blocks->free_blocks_count++;
+        } else {
+            return false;
+        }
+    }
+    return true;
+}
+
 void cli_command_free_blocks(Cli* cli, FuriString* args, void* context) {
     UNUSED(cli);
     UNUSED(args);
     UNUSED(context);
 
-    memmgr_heap_printf_free_blocks();
+    FreeBlockContext* free_blocks = malloc(sizeof(FreeBlockContext));
+    free_blocks->free_blocks_count = 0;
+
+    memmgr_heap_walk_blocks(free_block_walker, free_blocks);
+
+    for(size_t i = 0; i < free_blocks->free_blocks_count; i++) {
+        printf(
+            "A %p S %zu\r\n",
+            (void*)free_blocks->free_blocks[i].addr,
+            free_blocks->free_blocks[i].size);
+    }
+
+    if(free_blocks->free_blocks_count == FREE_BLOCK_INFO_MAX) {
+        printf("... and more\r\n");
+    }
+
+    free(free_blocks);
 }
 
 void cli_command_i2c(Cli* cli, FuriString* args, void* context) {