Fix miniarena

src/main.c

@@ -68,7 +68,7 @@ static void arena_test_2(void)
     printf("Allocated ptr %p\n", ptr);
 
     arena_dump(&arena);
-    ArenaCheckpoint checkpoint = arena_temp_begin(&arena);
+    ATemp checkpoint = arena_temp_begin(&arena);
     ptr = arena_push(&arena, MB(4)+3, 8);
     MemoryZero(ptr, MB(2));
 
@@ -77,7 +77,7 @@ static void arena_test_2(void)
     ptr = arena_push(&arena, commit_size , 8);
     MemoryZero(ptr, commit_size  );
 
-    ArenaCheckpoint checkpoint2 = arena_temp_begin(&arena);
+    ATemp checkpoint2 = arena_temp_begin(&arena);
     ptr = arena_push(&arena, 64, 8);
     MemoryZero(ptr, 64);
 
@@ -162,12 +162,41 @@ static void arena_test_4(void)
 
     arena_free(&arena);
 }
+void miniarena_test1(void)
+{
+    #define  arena_size  4096
+    MARENA_DEFINE(arena, arena_size, 8);
+    int i;
+    for (i = 0; ; i++) {
+        void *ptr = marena_push(&arena, 1);
+        if (ptr == NULL) {
+            break;
+        }
+    }
 
+    printf("miniarena_test1,size %u pushed %d bytes first_free %u\n", arena.size, i, arena.first_free);
+    marena_reset(&arena);
+    MTemp checkpoint = marena_temp_begin(&arena);
+
+    void *ptr = marena_push(&arena, arena_size);
+    Assert(ptr != NULL);
+    Assert(arena.first_free == arena_size);
+    MemoryZero(ptr, arena_size);
+    marena_temp_end(&checkpoint);
+
+    printf("miniarena_test1,size %u bytes first_free %u\n", arena.size, arena.first_free);
+
+    Assert(arena.first_free == 0);
+
+
+
+}
 int main(int argc, char *argv[])
 {
     // arena_test_1();
-    arena_test_2();
-    arena_test_3();
-    arena_test_4();
+    // arena_test_2();
+    // arena_test_3();
+    // arena_test_4();
+    miniarena_test1();
 }