allocation stats

allocation_stats.hpp

@@ -0,0 +1,43 @@
+#pragma once
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "types.hpp"
+
+#ifdef USE_FTB_MALLOC
+namespace Ftb_Malloc_Stats {
+    u32 malloc_calls  = 0;
+    u32 free_calls    = 0;
+    u32 realloc_calls = 0;
+    u32 calloc_calls  = 0;
+    u32 alloca_calls  = 0;
+}
+
+#define ftb_malloc(size)       (++Ftb_Malloc_Stats::malloc_calls,  malloc(size))
+#define ftb_free(ptr)          (++Ftb_Malloc_Stats::free_calls,    free(ptr))
+#define ftb_realloc(ptr, size) (++Ftb_Malloc_Stats::realloc_calls, realloc(ptr, size))
+#define ftb_calloc(num, size)  (++Ftb_Malloc_Stats::calloc_calls,  calloc(num, size))
+#define ftb_alloca(size)       (++Ftb_Malloc_Stats::alloca_calls,  alloca(size))
+
+void print_malloc_stats() {
+    printf("\n"
+           "Malloc Stats:\n"
+           "-------------\n"
+           "  ftb_malloc  calls: %u\n"
+           "  ftb_free    calls: %u\n"
+           "  ftb_realloc calls: %u\n"
+           "  ftb_calloc  calls: %u\n"
+           "  ftb_alloca  calls: %u\n" ,
+           Ftb_Malloc_Stats::malloc_calls,
+           Ftb_Malloc_Stats::free_calls,
+           Ftb_Malloc_Stats::realloc_calls,
+           Ftb_Malloc_Stats::calloc_calls,
+           Ftb_Malloc_Stats::alloca_calls);
+}
+#else
+# define ftb_malloc  malloc
+# define ftb_realloc realloc
+# define ftb_calloc  calloc
+# define ftb_free    free
+# define ftb_alloca  alloca
+#endif

arraylist.hpp

@@ -7,6 +7,7 @@
 #endif
 
 #include "types.hpp"
+#include "allocation_stats.hpp"
 #include "macros.hpp"
 
 template <typename type>
@@ -84,7 +85,7 @@ struct Array_List {
     u32 count;
 
     void alloc(u32 initial_capacity = 16) {
-        data = (type*)malloc(initial_capacity * sizeof(type));
+        data = (type*)ftb_malloc(initial_capacity * sizeof(type));
         count = 0;
         length = initial_capacity;
     }
@@ -98,7 +99,7 @@ struct Array_List {
     void alloc_from(std::initializer_list<type> l) {
         length = max(l.size(), 1); // alloc at least one
 
-        data = (type*)malloc(length * sizeof(type));
+        data = (type*)ftb_malloc(length * sizeof(type));
         count = 0;
         // TODO(Felix): Use memcpy here
         for (type t : l) {
@@ -115,7 +116,7 @@ struct Array_List {
     }
 
     void dealloc() {
-        free(data);
+        ftb_free(data);
         data = nullptr;
     }
 
@@ -141,7 +142,7 @@ struct Array_List {
         ret.length = length;
         ret.count = count;
 
-        ret.data = (type*)malloc(length * sizeof(type));
+        ret.data = (type*)ftb_malloc(length * sizeof(type));
         // TODO(Felix): Maybe use memcpy here
         for (u32 i = 0; i < count; ++i) {
             ret.data[i] = data[i];
@@ -174,7 +175,7 @@ struct Array_List {
     void append(type element) {
         if (count == length) {
             length *= 2;
-            data = (type*)realloc(data, length * sizeof(type));
+            data = (type*)ftb_realloc(data, length * sizeof(type));
         }
         data[count] = element;
         count++;
@@ -183,7 +184,7 @@ struct Array_List {
     void reserve(u32 amount) {
         if (count+amount >= (u32)length) {
             length *= 2;
-            data = (type*)realloc(data, length * sizeof(type));
+            data = (type*)ftb_realloc(data, length * sizeof(type));
         }
     }
 
@@ -281,7 +282,7 @@ struct Auto_Array_List : public Array_List<type> {
     }
 
     ~Auto_Array_List() {
-        free(this->data);
+        ftb_free(this->data);
         this->data = nullptr;
     }
 };

bucket_allocator.hpp

@@ -19,7 +19,7 @@ struct Bucket_Allocator {
     }
 
     void expand() {
-        buckets = (type**)realloc(buckets, bucket_count * 2 * sizeof(type*));
+        buckets = (type**)ftb_realloc(buckets, bucket_count * 2 * sizeof(type*));
         bucket_count *= 2;
     }
 
@@ -29,7 +29,7 @@ struct Bucket_Allocator {
         if (next_bucket_index >= bucket_count) {
             expand();
         }
-        buckets[next_bucket_index] = (type*)malloc(bucket_size * sizeof(type));
+        buckets[next_bucket_index] = (type*)ftb_malloc(bucket_size * sizeof(type));
     }
 
     void increment_pointers(s32 amount = 1) {
@@ -46,16 +46,16 @@ struct Bucket_Allocator {
         next_bucket_index = 0;
         bucket_count = initial_bucket_count;
 
-        buckets = (type**)malloc(bucket_count * sizeof(type*));
+        buckets = (type**)ftb_malloc(bucket_count * sizeof(type*));
-        buckets[0] = (type*)malloc(bucket_size * sizeof(type));
+        buckets[0] = (type*)ftb_malloc(bucket_size * sizeof(type));
     }
 
     void dealloc() {
         for (u32 i = 0; i <= next_bucket_index; ++i) {
-            free(buckets[i]);
+            ftb_free(buckets[i]);
         }
         this->free_list.dealloc();
-        free(buckets);
+        ftb_free(buckets);
     }
 
     u32 count_elements() {

error.hpp

@@ -15,14 +15,14 @@ struct Error {
 Error* error = nullptr;
 
 auto delete_error() -> void {
-    free(error);
+    ftb_free(error);
     error = nullptr;
 }
 
 auto create_error(const char* c_func_name, const char* c_file_name,
                   u32 c_file_line, String type, const char* format, ...) -> void {
 
-    error = (Error*) malloc(sizeof(Error));
+    error = (Error*) ftb_malloc(sizeof(Error));
 
     va_list args;
     va_start(args, format);

hashmap.hpp

@@ -74,11 +74,11 @@ struct Hash_Map {
         // until here
         current_capacity = initial_capacity;
         cell_count = 0;
-        data = (HM_Cell*)calloc(initial_capacity, sizeof(HM_Cell));
+        data = (HM_Cell*)ftb_calloc(initial_capacity, sizeof(HM_Cell));
     }
 
     void dealloc() {
-        free(data);
+        ftb_free(data);
         data = nullptr;
     }
 
@@ -209,7 +209,7 @@ struct Hash_Map {
                 /* collision, check resize */
                 if ((cell_count*1.0f / current_capacity) > 0.666f) {
                     auto old_data = data;
-                    data = (HM_Cell*)calloc(current_capacity*4, sizeof(HM_Cell));
+                    data = (HM_Cell*)ftb_calloc(current_capacity*4, sizeof(HM_Cell));
                     cell_count = 0;
                     current_capacity *= 4;
 
@@ -220,7 +220,7 @@ struct Hash_Map {
                             set_object(cell.original, cell.object, cell.hash);
                         }
                     }
-                    free(old_data);
+                    ftb_free(old_data);
                     index = hash_val & (current_capacity - 1);
                 }
                 ++cell_count;

print.hpp

@@ -65,7 +65,7 @@ int maybe_special_print(FILE* file, static_string format, int* pos, va_list* arg
     if (format[end_pos] == 0)
         return 0;
 
-    char* spec = (char*)malloc(end_pos - (*pos));
+    char* spec = (char*)ftb_alloca(end_pos - (*pos));
     strncpy(spec, format+(*pos)+1, end_pos - (*pos));
     spec[end_pos - (*pos)-1] = '\0';
 
@@ -86,10 +86,9 @@ int maybe_special_print(FILE* file, static_string format, int* pos, va_list* arg
 
     if (type == Printer_Function_Type::unknown) {
         printf("ERROR: %s printer not found\n", spec);
-        free(spec);
+        ftb_free(spec);
         return 0;
     }
-    free(spec);
 
     if (format[end_pos] == ',') {
         int element_count;
@@ -265,7 +264,7 @@ int maybe_fprintf(FILE* file, static_string format, int* pos, va_list* arg_list)
        format[end_pos] == '%')
     {
         writen_len = end_pos - *pos + 2;
-        char* temp = (char*)malloc((writen_len+1)* sizeof(char));
+        char* temp = (char*)alloca((writen_len+1)* sizeof(char));
         temp[0] = '%';
         temp[1] = 0;
         strncpy(temp+1, format+*pos, writen_len);
@@ -285,7 +284,6 @@ int maybe_fprintf(FILE* file, static_string format, int* pos, va_list* arg_list)
             va_arg(*arg_list, void*);
         }
 
-        free(temp);
         *pos = end_pos;
     }
 
@@ -328,7 +326,7 @@ int print_va_args_to_string(char** out, static_string format, va_list* arg_list)
 
     int num_printed_chars = print_va_args_to_file(t_file, format, arg_list);
 
-    *out = (char*)malloc(sizeof(char) * (num_printed_chars+1));
+    *out = (char*)ftb_malloc(sizeof(char) * (num_printed_chars+1));
 
     rewind(t_file);
     fread(*out, sizeof(char), num_printed_chars, t_file);
@@ -356,7 +354,7 @@ int print_to_string(char** out, static_string format, ...) {
     va_end(arg_list);
 
 
-    *out = (char*)malloc(sizeof(char) * (num_printed_chars+1));
+    *out = (char*)ftb_malloc(sizeof(char) * (num_printed_chars+1));
 
     rewind(t_file);
     fread(*out, sizeof(char), num_printed_chars, t_file);

stacktrace.hpp

@@ -45,7 +45,6 @@ auto print_stacktrace() -> void {
     for (i = 0; i < size; i++)
         printf("  %3lu: %s\n", size - i - 1, strings[i]);
     puts("");
-    free(strings);
+    ftb_free(strings);
-
 #endif
 }

testing.hpp

@@ -1,4 +1,5 @@
 #include "./types.hpp"
+#include "./allocation_stats.hpp"
 
 typedef s32 testresult;
 
@@ -87,7 +88,7 @@ typedef s32 testresult;
             fputs((i%3==1)? "." : " ", stdout);                 \
         fputs(console_red "failed\n" console_normal, stdout);   \
         if(error) {                                             \
-            free(error);                                        \
+            ftb_free(error);                                    \
             error = nullptr;                                    \
         }                                                       \
     }

tests/main.cpp

@@ -12,6 +12,7 @@ inline bool hm_objects_match(Key a, Key b);
 #define ZoneScoped
 #define ZoneScopedN(name)
 
+#define USE_FTB_MALLOC
 #include "../print.hpp"
 #include "../testing.hpp"
 #include "../bucket_allocator.hpp"
@@ -693,6 +694,8 @@ auto test_scheduler_animations() -> testresult {
 }
 
 s32 main(s32, char**) {
+    defer { print_malloc_stats(); };
+
     init_printer();
     defer { deinit_printer(); };
     testresult result;