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/*
* Logging!
*/
#include <stdlib.h>
#ifdef DEBUG
#define LOG_DEBUG(...) PRINTF(__VA_ARGS__)
#else
#define LOG_DEBUG(...) ((void)0)
#endif
/* fatal and error always enabled */
#define PFATAL(message, ...) p_log_printf(P_LOG_LEVEL_FATAL, message, ##__VA_ARGS__)
#define PERROR(message, ...) p_log_printf(P_LOG_LEVEL_ERROR, message, ##__VA_ARGS__)
/* warn and info enabled by default but can be disabled */
#define P_LOG_WARN_ENABLED 1
#define P_LOG_INFO_ENABLED 1
#if P_LOG_WARN_ENABLED == 1
#define PWARN(message, ...) p_log_printf(P_LOG_LEVEL_WARN, message, ##__VA_ARGS__)
#else
#define PWARN(message, ...)
#endif
#if P_LOG_INFO_ENABLED == 1
#define PINFO(message, ...) p_log_printf(P_LOG_LEVEL_INFO, message, ##__VA_ARGS__)
#else
#define PINFO(message, ...)
#endif
#if P_LOG_DEBUG_ENABLED == 1
#define PDEBUG(message, ...) p_log_printf(P_LOG_LEVEL_DEBUG, message, ##__VA_ARGS__)
#else
#define PDEBUG(message, ...)
#endif
#if P_LOG_TRACE_ENABLED == 1
#define PTRACE(message, ...) p_log_printf(P_LOG_LEVEL_TRACE, message, ##__VA_ARGS__)
#else
#define PTRACE(message, ...)
#endif
typedef enum P_Log_Level {
P_LOG_LEVEL_FATAL = 0,
P_LOG_LEVEL_ERROR,
P_LOG_LEVEL_WARN,
P_LOG_LEVEL_INFO,
P_LOG_LEVEL_DEBUG,
P_LOG_LEVEL_TRACE,
P_COUNT_LOG_LEVEL
} P_Log_Level;
#define P_PREFIX_LEN 7
static const char *p_prefix[P_COUNT_LOG_LEVEL] = {
[P_LOG_LEVEL_FATAL] = "[FATAL]",
[P_LOG_LEVEL_ERROR] = "[ERROR]",
[P_LOG_LEVEL_WARN] = "[WARNI]",
[P_LOG_LEVEL_INFO] = "[INFOR]",
[P_LOG_LEVEL_DEBUG] = "[DEBUG]",
[P_LOG_LEVEL_TRACE] = "[TRACE]",
};
#define P_MAX_ALLOCS 512
typedef struct P_DebugMemoryInfo {
void *ptr;
size_t size;
const char *file;
const char *func;
int line;
} P_DebugMemoryInfo;
static uint64_t p_alloc_count = 0;
static P_DebugMemoryInfo p_ptr_array[P_MAX_ALLOCS];
static inline void *
p_debug_malloc_impl(size_t size, const char *file, int line, const char *func)
{
void *ptr = malloc(size);
printf("[ALLOC] %p (%zu bytes) -> %s:%d %s()\n", ptr, size, file, line, func);
if (ptr) {
if (p_alloc_count < P_MAX_ALLOCS) {
p_ptr_array[p_alloc_count++] = (P_DebugMemoryInfo){
.ptr = ptr,
.size = size,
.file = file,
.func = func,
.line = line
};
} else {
fprintf(stderr, "[ERROR] Debug allocator tracking capacity (%d) exceeded!\n", P_MAX_ALLOCS);
}
}
return ptr;
}
static inline void
p_debug_free_impl(void *ptr, const char *file, int line, const char *func)
{
printf("[FREE] %p -> %s:%d %s()\n", ptr, file, line, func);
if (!ptr) return; // Standard C allows free(NULL)
bool found = false;
uint64_t index = 0;
/* Find allocation metadata */
for (index = 0; index < p_alloc_count; ++index) {
if (p_ptr_array[index].ptr == ptr) {
found = true;
break;
}
}
if (found) {
/* Shift array left to remove tracked struct */
for (uint64_t j = index; j < p_alloc_count - 1; ++j) {
p_ptr_array[j] = p_ptr_array[j + 1];
}
p_alloc_count--;
} else {
fprintf(stderr, "[WARNING] Attempted to free untracked/double-freed pointer %p at %s:%d %s()\n",
ptr, file, line, func);
}
free(ptr);
}
static inline void *
p_debug_realloc_impl(void *ptr, size_t size, const char *file, int line, const char *func)
{
if (!ptr) {
return p_debug_malloc_impl(size, file, line, func);
}
if (size == 0) {
p_debug_free_impl(ptr, file, line, func);
return NULL;
}
void *new_ptr = realloc(ptr, size);
printf("[REALLOC] %p -> %p (%zu bytes) -> %s:%d %s()\n", ptr, new_ptr, size, file, line, func);
if (new_ptr) {
bool found = false;
for (uint64_t i = 0; i < p_alloc_count; ++i) {
if (p_ptr_array[i].ptr == ptr) {
p_ptr_array[i].ptr = new_ptr;
p_ptr_array[i].size = size;
p_ptr_array[i].file = file;
p_ptr_array[i].line = line;
p_ptr_array[i].func = func;
found = true;
break;
}
}
if (!found) {
if (p_alloc_count < P_MAX_ALLOCS) {
p_ptr_array[p_alloc_count++] = (P_DebugMemoryInfo){
.ptr = new_ptr,
.size = size,
.file = file,
.func = func,
.line = line
};
}
}
}
return new_ptr;
}
static void
p_debug_memory_report(void)
{
printf("\n==================== MEMORY REPORT ====================\n");
printf("Remaining unfreed allocations: %lu\n", (unsigned long)p_alloc_count);
for (uint64_t i = 0; i < p_alloc_count; ++i) {
P_DebugMemoryInfo *info = &p_ptr_array[i];
printf("[LEAK] %p (%zu bytes) allocated at %s:%d in %s()\n",
info->ptr, info->size, info->file, info->line, info->func);
}
printf("=======================================================\n");
}
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