git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@983 65c4cc65-6c06-0410-ace0-fbb531ad65f3
347 lines
7.8 KiB
C
Executable file
347 lines
7.8 KiB
C
Executable file
/*
|
|
* Asterisk -- A telephony toolkit for Linux.
|
|
*
|
|
* Channel Variables
|
|
*
|
|
* Copyright (C) 2002, Mark Spencer
|
|
*
|
|
* Mark Spencer <markster@linux-support.net>
|
|
*
|
|
* This program is free software, distributed under the terms of
|
|
* the GNU General Public License
|
|
*/
|
|
|
|
|
|
|
|
#ifdef __AST_DEBUG_MALLOC
|
|
|
|
#include <malloc.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <pthread.h>
|
|
#include <time.h>
|
|
#include <asterisk/cli.h>
|
|
#include <asterisk/logger.h>
|
|
#include <asterisk/options.h>
|
|
|
|
#define SOME_PRIME 563
|
|
|
|
#define FUNC_CALLOC 1
|
|
#define FUNC_MALLOC 2
|
|
#define FUNC_REALLOC 3
|
|
#define FUNC_STRDUP 4
|
|
#define FUNC_STRNDUP 5
|
|
|
|
/* Undefine all our macros */
|
|
#undef malloc
|
|
#undef calloc
|
|
#undef realloc
|
|
#undef strdup
|
|
#undef strndup
|
|
#undef free
|
|
|
|
static FILE *mmlog;
|
|
|
|
static struct ast_region {
|
|
struct ast_region *next;
|
|
char file[40];
|
|
char func[40];
|
|
int lineno;
|
|
int which;
|
|
size_t len;
|
|
unsigned char data[0];
|
|
} *regions[SOME_PRIME];
|
|
|
|
#define HASH(a) \
|
|
(((unsigned long)(a)) % SOME_PRIME)
|
|
|
|
static pthread_mutex_t reglock = PTHREAD_MUTEX_INITIALIZER;
|
|
|
|
static inline void *__ast_alloc_region(size_t size, int which, const char *file, int lineno, const char *func)
|
|
{
|
|
struct ast_region *reg;
|
|
void *ptr=NULL;
|
|
int hash;
|
|
reg = malloc(size + sizeof(struct ast_region));
|
|
pthread_mutex_lock(®lock);
|
|
if (reg) {
|
|
strncpy(reg->file, file, sizeof(reg->file) - 1);
|
|
reg->file[sizeof(reg->file) - 1] = '\0';
|
|
strncpy(reg->func, func, sizeof(reg->func) - 1);
|
|
reg->func[sizeof(reg->func) - 1] = '\0';
|
|
reg->lineno = lineno;
|
|
reg->len = size;
|
|
reg->which = which;
|
|
ptr = reg->data;
|
|
hash = HASH(ptr);
|
|
reg->next = regions[hash];
|
|
regions[hash] = reg;
|
|
}
|
|
pthread_mutex_unlock(®lock);
|
|
if (!reg) {
|
|
fprintf(stderr, "Out of memory :(\n");
|
|
if (mmlog) {
|
|
fprintf(mmlog, "%ld - Out of memory\n", time(NULL));
|
|
fflush(mmlog);
|
|
}
|
|
}
|
|
return ptr;
|
|
}
|
|
|
|
static inline size_t __ast_sizeof_region(void *ptr)
|
|
{
|
|
int hash = HASH(ptr);
|
|
struct ast_region *reg;
|
|
size_t len = 0;
|
|
|
|
pthread_mutex_lock(®lock);
|
|
reg = regions[hash];
|
|
while(reg) {
|
|
if (reg->data == ptr) {
|
|
len = reg->len;
|
|
break;
|
|
}
|
|
reg = reg->next;
|
|
}
|
|
pthread_mutex_unlock(®lock);
|
|
return len;
|
|
}
|
|
|
|
static void __ast_free_region(void *ptr, const char *file, int lineno, const char *func)
|
|
{
|
|
int hash = HASH(ptr);
|
|
struct ast_region *reg, *prev = NULL;
|
|
pthread_mutex_lock(®lock);
|
|
reg = regions[hash];
|
|
while(reg) {
|
|
if (reg->data == ptr) {
|
|
if (prev)
|
|
prev->next = reg->next;
|
|
else
|
|
regions[hash] = reg->next;
|
|
|
|
break;
|
|
}
|
|
prev = reg;
|
|
reg = reg->next;
|
|
}
|
|
pthread_mutex_unlock(®lock);
|
|
if (reg) {
|
|
free(reg);
|
|
} else {
|
|
fprintf(stderr, "WARNING: Freeing unused memory at %p, in %s of %s, line %d\n",
|
|
ptr, func, file, lineno);
|
|
if (mmlog) {
|
|
fprintf(mmlog, "%ld - WARNING: Freeing unused memory at %p, in %s of %s, line %d\n", time(NULL),
|
|
ptr, func, file, lineno);
|
|
fflush(mmlog);
|
|
}
|
|
}
|
|
}
|
|
|
|
void *__ast_calloc(size_t nmemb, size_t size, const char *file, int lineno, const char *func)
|
|
{
|
|
void *ptr;
|
|
ptr = __ast_alloc_region(size * nmemb, FUNC_CALLOC, file, lineno, func);
|
|
if (ptr)
|
|
memset(ptr, 0, size * nmemb);
|
|
return ptr;
|
|
}
|
|
|
|
void *__ast_malloc(size_t size, const char *file, int lineno, const char *func)
|
|
{
|
|
return __ast_alloc_region(size, FUNC_MALLOC, file, lineno, func);
|
|
}
|
|
|
|
void __ast_free(void *ptr, const char *file, int lineno, const char *func)
|
|
{
|
|
__ast_free_region(ptr, file, lineno, func);
|
|
}
|
|
|
|
void *__ast_realloc(void *ptr, size_t size, const char *file, int lineno, const char *func)
|
|
{
|
|
void *tmp;
|
|
size_t len=0;
|
|
if (ptr) {
|
|
len = __ast_sizeof_region(ptr);
|
|
if (!len) {
|
|
fprintf(stderr, "WARNING: Realloc of unalloced memory at %p, in %s of %s, line %d\n",
|
|
ptr, func, file, lineno);
|
|
if (mmlog) {
|
|
fprintf(mmlog, "%ld - WARNING: Realloc of unalloced memory at %p, in %s of %s, line %d\n",
|
|
time(NULL), ptr, func, file, lineno);
|
|
fflush(mmlog);
|
|
}
|
|
return NULL;
|
|
}
|
|
}
|
|
tmp = __ast_alloc_region(size, FUNC_REALLOC, file, lineno, func);
|
|
if (tmp) {
|
|
if (len > size)
|
|
len = size;
|
|
if (ptr) {
|
|
memcpy(tmp, ptr, len);
|
|
__ast_free_region(ptr, file, lineno, func);
|
|
}
|
|
}
|
|
return tmp;
|
|
}
|
|
|
|
char *__ast_strdup(const char *s, const char *file, int lineno, const char *func)
|
|
{
|
|
size_t len;
|
|
void *ptr;
|
|
if (!s)
|
|
return NULL;
|
|
len = strlen(s) + 1;
|
|
ptr = __ast_alloc_region(len, FUNC_STRDUP, file, lineno, func);
|
|
if (ptr)
|
|
strcpy(ptr, s);
|
|
return ptr;
|
|
}
|
|
|
|
char *__ast_strndup(const char *s, size_t n, const char *file, int lineno, const char *func)
|
|
{
|
|
size_t len;
|
|
void *ptr;
|
|
if (!s)
|
|
return NULL;
|
|
len = strlen(s) + 1;
|
|
if (len > n)
|
|
len = n;
|
|
ptr = __ast_alloc_region(len, FUNC_STRDUP, file, lineno, func);
|
|
if (ptr)
|
|
strcpy(ptr, s);
|
|
return ptr;
|
|
}
|
|
|
|
static int handle_show_memory(int fd, int argc, char *argv[])
|
|
{
|
|
char *fn = NULL;
|
|
int x;
|
|
struct ast_region *reg;
|
|
unsigned int len=0;
|
|
int count = 0;
|
|
if (argc >3)
|
|
fn = argv[3];
|
|
|
|
/* try to lock applications list ... */
|
|
pthread_mutex_lock(®lock);
|
|
|
|
for (x=0;x<SOME_PRIME;x++) {
|
|
reg = regions[x];
|
|
while(reg) {
|
|
if (!fn || !strcasecmp(fn, reg->file)) {
|
|
ast_cli(fd, "%10d bytes allocated in %20s at line %5d of %s\n", reg->len, reg->func, reg->lineno, reg->file);
|
|
len += reg->len;
|
|
count++;
|
|
}
|
|
reg = reg->next;
|
|
}
|
|
}
|
|
ast_cli(fd, "%d bytes allocated %d units total\n", len, count);
|
|
pthread_mutex_unlock(®lock);
|
|
return RESULT_SUCCESS;
|
|
}
|
|
|
|
struct file_summary {
|
|
char fn[80];
|
|
int len;
|
|
int count;
|
|
struct file_summary *next;
|
|
};
|
|
|
|
static int handle_show_memory_summary(int fd, int argc, char *argv[])
|
|
{
|
|
char *fn = NULL;
|
|
int x;
|
|
struct ast_region *reg;
|
|
unsigned int len=0;
|
|
int count = 0;
|
|
struct file_summary *list = NULL, *cur;
|
|
|
|
if (argc >3)
|
|
fn = argv[3];
|
|
|
|
/* try to lock applications list ... */
|
|
pthread_mutex_lock(®lock);
|
|
|
|
for (x=0;x<SOME_PRIME;x++) {
|
|
reg = regions[x];
|
|
while(reg) {
|
|
if (!fn || !strcasecmp(fn, reg->file)) {
|
|
cur = list;
|
|
while(cur) {
|
|
if ((!fn && !strcmp(cur->fn, reg->file)) || (fn && !strcmp(cur->fn, reg->func)))
|
|
break;
|
|
cur = cur->next;
|
|
}
|
|
if (!cur) {
|
|
cur = alloca(sizeof(struct file_summary));
|
|
memset(cur, 0, sizeof(struct file_summary));
|
|
strncpy(cur->fn, fn ? reg->func : reg->file, sizeof(cur->fn) - 1);
|
|
cur->next = list;
|
|
list = cur;
|
|
}
|
|
cur->len += reg->len;
|
|
cur->count++;
|
|
}
|
|
reg = reg->next;
|
|
}
|
|
}
|
|
pthread_mutex_unlock(®lock);
|
|
|
|
/* Dump the whole list */
|
|
while(list) {
|
|
cur = list;
|
|
len += list->len;
|
|
count += list->count;
|
|
if (fn)
|
|
ast_cli(fd, "%10d bytes in %5d allocations in function '%s' of '%s'\n", list->len, list->count, list->fn, fn);
|
|
else
|
|
ast_cli(fd, "%10d bytes in %5d allocations in file '%s'\n", list->len, list->count, list->fn);
|
|
list = list->next;
|
|
#if 0
|
|
free(cur);
|
|
#endif
|
|
}
|
|
ast_cli(fd, "%d bytes allocated %d units total\n", len, count);
|
|
return RESULT_SUCCESS;
|
|
}
|
|
|
|
static char show_memory_help[] =
|
|
"Usage: show memory allocations [<file>]\n"
|
|
" Dumps a list of all segments of allocated memory, optionally\n"
|
|
"limited to those from a specific file\n";
|
|
|
|
static char show_memory_summary_help[] =
|
|
"Usage: show memory summary [<file>]\n"
|
|
" Summarizes heap memory allocations by file, or optionally\n"
|
|
"by function, if a file is specified\n";
|
|
|
|
static struct ast_cli_entry show_memory_allocations_cli =
|
|
{ { "show", "memory", "allocations", NULL },
|
|
handle_show_memory, "Display outstanding memory allocations",
|
|
show_memory_help };
|
|
|
|
static struct ast_cli_entry show_memory_summary_cli =
|
|
{ { "show", "memory", "summary", NULL },
|
|
handle_show_memory_summary, "Summarize outstanding memory allocations",
|
|
show_memory_summary_help };
|
|
|
|
|
|
void __ast_mm_init(void)
|
|
{
|
|
ast_cli_register(&show_memory_allocations_cli);
|
|
ast_cli_register(&show_memory_summary_cli);
|
|
mmlog = fopen("/var/log/asterisk/mmlog", "a+");
|
|
if (option_verbose)
|
|
ast_verbose("Asterisk Malloc Debugger Started (see /var/log/asterisk/mmlog)\n");
|
|
if (mmlog) {
|
|
fprintf(mmlog, "%ld - New session\n", time(NULL));
|
|
fflush(mmlog);
|
|
}
|
|
}
|
|
|
|
#endif
|