mem: add allocations and frees counters with u_mem_get_counters()

lib/mem.c

@@ -50,6 +50,8 @@ static void init_mutex() {
 
 static void* allocated_head = NULL;
 static size_t allocated_count = 0;
+static size_t allocations_count = 0;
+static size_t frees_count = 0;
 
 static void hex_dump(const void* mem, size_t len) {
     const uint8_t* data = (const uint8_t*)mem;
@@ -138,6 +140,7 @@ void* u_malloc_impl(uint32_t size, const char* location) {
     *next_ptr = allocated_head;
     allocated_head = base;
     allocated_count++;
+    allocations_count++;
     UNLOCK();
     return prefix_start + BOUNDARY_CHECK_SIZE + 8;
 }
@@ -183,6 +186,7 @@ void u_free_impl(void* ptr, const char* location) {
                 allocated_head = *(void**)((uint8_t*)curr + NEXT_OFFSET);
             }
             allocated_count--;
+            frees_count++;
             found = true;
             break;
         }
@@ -205,11 +209,22 @@ char* u_strdup_impl(const char* s, const char* location) {
     return copy;
 }
 
+void u_mem_get_counters(size_t* allocations, size_t* frees, size_t* allocated) {
+    LOCK();
+    if (allocations) *allocations = allocations_count;
+    if (frees) *frees = frees_count;
+    if (allocated) *allocated = allocated_count;
+    UNLOCK();
+}
+
 void u_report_unfreed_blocks(void) {
     LOCK();
     size_t count = allocated_count;
     void* head = allocated_head;
+    size_t alloc_count = allocations_count;
+    size_t free_count = frees_count;
     UNLOCK();
+    DEBUG_ERROR(DEBUG_CATEGORY_MEMORY, "Memory stats: allocations=%zu, frees=%zu, current=%zu", alloc_count, free_count, count);
     if (count == 0) {
         DEBUG_INFO(DEBUG_CATEGORY_MEMORY, "No unfreed memory blocks.");
         return;

lib/mem.h

@@ -23,6 +23,7 @@ void* u_calloc_impl(uint32_t nmemb, uint32_t size, const char* location);
 void* u_realloc_impl(void* ptr, uint32_t size, const char* location);
 void u_free_impl(void* ptr, const char* location);
 char* u_strdup_impl(const char* s, const char* location);
+void u_mem_get_counters(size_t* allocations, size_t* frees, size_t* allocated);
 void u_report_unfreed_blocks(void);
 #ifdef __cplusplus
 }