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#define _GNU_SOURCE
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <assert.h>
#undef strdup
#undef malloc
#undef realloc
#undef calloc
#undef free
#include "DebugMemory.h"
/*{
typedef struct DebugMemoryItem_ DebugMemoryItem;
struct DebugMemoryItem_ {
int magic;
void* data;
char* file;
int line;
DebugMemoryItem* next;
};
typedef struct DebugMemory_ {
DebugMemoryItem* first;
int allocations;
int deallocations;
int size;
bool totals;
FILE* file;
} DebugMemory;
}*/
#if defined(DEBUG)
static DebugMemory* singleton = NULL;
void DebugMemory_new() {
if (singleton)
return;
singleton = malloc(sizeof(DebugMemory));
singleton->first = NULL;
singleton->allocations = 0;
singleton->deallocations = 0;
singleton->size = 0;
#ifdef DEBUG_ALLOC
singleton->file = fopen("/tmp/htop-debug-alloc.txt", "w");
#else
singleton->file = NULL;
#endif
singleton->totals = true;
//singleton->file = NULL;
}
void* DebugMemory_malloc(int size, char* file, int line, char* str) {
void* data = malloc(size);
DebugMemory_registerAllocation(data, file, line);
if (singleton->file) {
if (singleton->totals) fprintf(singleton->file, "%d\t", singleton->size);
fprintf(singleton->file, "%d\t%s:%d (%s)\n", size, file, line, str);
}
return data;
}
void* DebugMemory_calloc(int a, int b, char* file, int line) {
void* data = calloc(a, b);
DebugMemory_registerAllocation(data, file, line);
if (singleton->file) {
if (singleton->totals) fprintf(singleton->file, "%d\t", singleton->size);
fprintf(singleton->file, "%d\t%s:%d\n", a*b, file, line);
}
return data;
}
void* DebugMemory_realloc(void* ptr, int size, char* file, int line, char* str) {
if (ptr != NULL)
DebugMemory_registerDeallocation(ptr, file, line);
void* data = realloc(ptr, size);
DebugMemory_registerAllocation(data, file, line);
if (singleton->file) {
if (singleton->totals) fprintf(singleton->file, "%d\t", singleton->size);
fprintf(singleton->file, "%d\t%s:%d (%s)\n", size, file, line, str);
}
return data;
}
void* DebugMemory_strdup(char* str, char* file, int line) {
assert(str);
char* data = strdup(str);
DebugMemory_registerAllocation(data, file, line);
if (singleton->file) {
if (singleton->totals) fprintf(singleton->file, "%d\t", singleton->size);
fprintf(singleton->file, "%d\t%s:%d\n", (int) strlen(str), file, line);
}
return data;
}
void DebugMemory_free(void* data, char* file, int line) {
assert(data);
DebugMemory_registerDeallocation(data, file, line);
if (singleton->file) {
if (singleton->totals) fprintf(singleton->file, "%d\t", singleton->size);
fprintf(singleton->file, "free\t%s:%d\n", file, line);
}
free(data);
}
void DebugMemory_assertSize() {
if (!singleton->first) {
assert (singleton->size == 0);
}
DebugMemoryItem* walk = singleton->first;
int i = 0;
while (walk != NULL) {
assert(walk->magic == 11061980);
i++;
walk = walk->next;
}
assert (i == singleton->size);
}
int DebugMemory_getBlockCount() {
if (!singleton->first) {
return 0;
}
DebugMemoryItem* walk = singleton->first;
int i = 0;
while (walk != NULL) {
assert(walk->magic == 11061980);
i++;
walk = walk->next;
}
return i;
}
void DebugMemory_registerAllocation(void* data, char* file, int line) {
if (!singleton)
DebugMemory_new();
DebugMemory_assertSize();
DebugMemoryItem* item = (DebugMemoryItem*) malloc(sizeof(DebugMemoryItem));
item->magic = 11061980;
item->data = data;
item->file = file;
item->line = line;
item->next = NULL;
int val = DebugMemory_getBlockCount();
if (singleton->first == NULL) {
assert (val == 0);
singleton->first = item;
} else {
DebugMemoryItem* walk = singleton->first;
while (true) {
if (walk->next == NULL) {
walk->next = item;
break;
}
assert(walk->magic == 11061980);
walk = walk->next;
}
}
int nval = DebugMemory_getBlockCount();
assert(nval == val + 1);
singleton->allocations++;
singleton->size++;
DebugMemory_assertSize();
}
void DebugMemory_registerDeallocation(void* data, char* file, int line) {
assert(singleton);
assert(singleton->first);
DebugMemoryItem* walk = singleton->first;
DebugMemoryItem* prev = NULL;
int val = DebugMemory_getBlockCount();
while (walk != NULL) {
assert(walk->magic == 11061980);
if (walk->data == data) {
if (prev == NULL) {
singleton->first = walk->next;
} else {
prev->next = walk->next;
}
free(walk);
assert(DebugMemory_getBlockCount() == val - 1);
singleton->deallocations++;
singleton->size--;
DebugMemory_assertSize();
return;
}
DebugMemoryItem* tmp = walk;
walk = walk->next;
prev = tmp;
}
DebugMemory_report();
fprintf(stderr, "Couldn't find allocation for memory freed at %s:%d\n", file, line);
assert(false);
}
void DebugMemory_report() {
assert(singleton);
DebugMemoryItem* walk = singleton->first;
int i = 0;
while (walk != NULL) {
assert(walk->magic == 11061980);
i++;
fprintf(stderr, "%p %s:%d\n", walk->data, walk->file, walk->line);
walk = walk->next;
}
fprintf(stderr, "Total:\n");
fprintf(stderr, "%d allocations\n", singleton->allocations);
fprintf(stderr, "%d deallocations\n", singleton->deallocations);
fprintf(stderr, "%d size\n", singleton->size);
fprintf(stderr, "%d non-freed blocks\n", i);
if (singleton->file)
fclose(singleton->file);
}
#elif defined(DEBUGLITE)
//#include "efence.h"
#endif
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