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-rw-r--r--trunk/main/astmm.c479
1 files changed, 0 insertions, 479 deletions
diff --git a/trunk/main/astmm.c b/trunk/main/astmm.c
deleted file mode 100644
index 69c124fbe..000000000
--- a/trunk/main/astmm.c
+++ /dev/null
@@ -1,479 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 1999 - 2006, Digium, Inc.
- *
- * Mark Spencer <markster@digium.com>
- *
- * See http://www.asterisk.org for more information about
- * the Asterisk project. Please do not directly contact
- * any of the maintainers of this project for assistance;
- * the project provides a web site, mailing lists and IRC
- * channels for your use.
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License Version 2. See the LICENSE file
- * at the top of the source tree.
- */
-
-/*! \file
- *
- * \brief Memory Management
- *
- * \author Mark Spencer <markster@digium.com>
- */
-
-#ifdef __AST_DEBUG_MALLOC
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
-
-#include "asterisk/paths.h" /* use ast_config_AST_LOG_DIR */
-#include <time.h>
-
-#include "asterisk/cli.h"
-#include "asterisk/lock.h"
-#include "asterisk/strings.h"
-#include "asterisk/unaligned.h"
-
-#define SOME_PRIME 563
-
-enum func_type {
- FUNC_CALLOC = 1,
- FUNC_MALLOC,
- FUNC_REALLOC,
- FUNC_STRDUP,
- FUNC_STRNDUP,
- FUNC_VASPRINTF,
- FUNC_ASPRINTF
-};
-
-/* Undefine all our macros */
-#undef malloc
-#undef calloc
-#undef realloc
-#undef strdup
-#undef strndup
-#undef free
-#undef vasprintf
-#undef asprintf
-
-#define FENCE_MAGIC 0xdeadbeef
-
-static FILE *mmlog;
-
-static struct ast_region {
- struct ast_region *next;
- char file[64];
- char func[40];
- unsigned int lineno;
- enum func_type which;
- unsigned int cache; /* region was allocated as part of a cache pool */
- size_t len;
- unsigned int fence;
- unsigned char data[0];
-} *regions[SOME_PRIME];
-
-#define HASH(a) \
- (((unsigned long)(a)) % SOME_PRIME)
-
-/*! Tracking this mutex will cause infinite recursion, as the mutex tracking
- * code allocates memory */
-AST_MUTEX_DEFINE_STATIC_NOTRACKING(reglock);
-
-#define astmm_log(...) \
- do { \
- fprintf(stderr, __VA_ARGS__); \
- if (mmlog) { \
- fprintf(mmlog, __VA_ARGS__); \
- fflush(mmlog); \
- } \
- } while (0)
-
-static inline void *__ast_alloc_region(size_t size, const enum func_type which, const char *file, int lineno, const char *func, unsigned int cache)
-{
- struct ast_region *reg;
- void *ptr = NULL;
- unsigned int *fence;
- int hash;
-
- if (!(reg = malloc(size + sizeof(*reg) + sizeof(*fence)))) {
- astmm_log("Memory Allocation Failure - '%d' bytes in function %s "
- "at line %d of %s\n", (int) size, func, lineno, file);
- }
-
- ast_copy_string(reg->file, file, sizeof(reg->file));
- ast_copy_string(reg->func, func, sizeof(reg->func));
- reg->lineno = lineno;
- reg->len = size;
- reg->which = which;
- reg->cache = cache;
- ptr = reg->data;
- hash = HASH(ptr);
- reg->fence = FENCE_MAGIC;
- fence = (ptr + reg->len);
- put_unaligned_uint32(fence, FENCE_MAGIC);
-
- ast_mutex_lock(&reglock);
- reg->next = regions[hash];
- regions[hash] = reg;
- ast_mutex_unlock(&reglock);
-
- return ptr;
-}
-
-static inline size_t __ast_sizeof_region(void *ptr)
-{
- int hash = HASH(ptr);
- struct ast_region *reg;
- size_t len = 0;
-
- ast_mutex_lock(&reglock);
- for (reg = regions[hash]; reg; reg = reg->next) {
- if (reg->data == ptr) {
- len = reg->len;
- break;
- }
- }
- ast_mutex_unlock(&reglock);
-
- 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;
- unsigned int *fence;
-
- ast_mutex_lock(&reglock);
- for (reg = regions[hash]; reg; reg = reg->next) {
- if (reg->data == ptr) {
- if (prev)
- prev->next = reg->next;
- else
- regions[hash] = reg->next;
- break;
- }
- prev = reg;
- }
- ast_mutex_unlock(&reglock);
-
- if (reg) {
- fence = (unsigned int *)(reg->data + reg->len);
- if (reg->fence != FENCE_MAGIC) {
- astmm_log("WARNING: Low fence violation at %p, in %s of %s, "
- "line %d\n", reg->data, reg->func, reg->file, reg->lineno);
- }
- if (get_unaligned_uint32(fence) != FENCE_MAGIC) {
- astmm_log("WARNING: High fence violation at %p, in %s of %s, "
- "line %d\n", reg->data, reg->func, reg->file, reg->lineno);
- }
- free(reg);
- } else {
- astmm_log("WARNING: Freeing unused memory at %p, in %s of %s, line %d\n",
- ptr, func, file, lineno);
- }
-}
-
-void *__ast_calloc(size_t nmemb, size_t size, const char *file, int lineno, const char *func)
-{
- void *ptr;
-
- if ((ptr = __ast_alloc_region(size * nmemb, FUNC_CALLOC, file, lineno, func, 0)))
- memset(ptr, 0, size * nmemb);
-
- return ptr;
-}
-
-void *__ast_calloc_cache(size_t nmemb, size_t size, const char *file, int lineno, const char *func)
-{
- void *ptr;
-
- if ((ptr = __ast_alloc_region(size * nmemb, FUNC_CALLOC, file, lineno, func, 1)))
- 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, 0);
-}
-
-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))) {
- astmm_log("WARNING: Realloc of unalloced memory at %p, in %s of %s, "
- "line %d\n", ptr, func, file, lineno);
- return NULL;
- }
-
- if (!(tmp = __ast_alloc_region(size, FUNC_REALLOC, file, lineno, func, 0)))
- return NULL;
-
- 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;
- if ((ptr = __ast_alloc_region(len, FUNC_STRDUP, file, lineno, func, 0)))
- 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;
- if ((ptr = __ast_alloc_region(len, FUNC_STRNDUP, file, lineno, func, 0)))
- strcpy(ptr, s);
-
- return ptr;
-}
-
-int __ast_asprintf(const char *file, int lineno, const char *func, char **strp, const char *fmt, ...)
-{
- int size;
- va_list ap, ap2;
- char s;
-
- *strp = NULL;
- va_start(ap, fmt);
- va_copy(ap2, ap);
- size = vsnprintf(&s, 1, fmt, ap2);
- va_end(ap2);
- if (!(*strp = __ast_alloc_region(size + 1, FUNC_ASPRINTF, file, lineno, func, 0))) {
- va_end(ap);
- return -1;
- }
- vsnprintf(*strp, size + 1, fmt, ap);
- va_end(ap);
-
- return size;
-}
-
-int __ast_vasprintf(char **strp, const char *fmt, va_list ap, const char *file, int lineno, const char *func)
-{
- int size;
- va_list ap2;
- char s;
-
- *strp = NULL;
- va_copy(ap2, ap);
- size = vsnprintf(&s, 1, fmt, ap2);
- va_end(ap2);
- if (!(*strp = __ast_alloc_region(size + 1, FUNC_VASPRINTF, file, lineno, func, 0))) {
- va_end(ap);
- return -1;
- }
- vsnprintf(*strp, size + 1, fmt, ap);
-
- return size;
-}
-
-static char *handle_memory_show(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
-{
- char *fn = NULL;
- struct ast_region *reg;
- unsigned int x;
- unsigned int len = 0;
- unsigned int cache_len = 0;
- unsigned int count = 0;
- unsigned int *fence;
-
- switch (cmd) {
- case CLI_INIT:
- e->command = "memory show allocations";
- e->usage =
- "Usage: memory show allocations [<file>]\n"
- " Dumps a list of all segments of allocated memory, optionally\n"
- " limited to those from a specific file\n";
- return NULL;
- case CLI_GENERATE:
- return NULL;
- }
-
-
- if (a->argc > 3)
- fn = a->argv[3];
-
- ast_mutex_lock(&reglock);
- for (x = 0; x < SOME_PRIME; x++) {
- for (reg = regions[x]; reg; reg = reg->next) {
- if (!fn || !strcasecmp(fn, reg->file) || !strcasecmp(fn, "anomolies")) {
- fence = (unsigned int *)(reg->data + reg->len);
- if (reg->fence != FENCE_MAGIC) {
- astmm_log("WARNING: Low fence violation at %p, "
- "in %s of %s, line %d\n", reg->data,
- reg->func, reg->file, reg->lineno);
- }
- if (get_unaligned_uint32(fence) != FENCE_MAGIC) {
- astmm_log("WARNING: High fence violation at %p, in %s of %s, "
- "line %d\n", reg->data, reg->func, reg->file, reg->lineno);
- }
- }
- if (!fn || !strcasecmp(fn, reg->file)) {
- ast_cli(a->fd, "%10d bytes allocated%s in %20s at line %5d of %s\n",
- (int) reg->len, reg->cache ? " (cache)" : "",
- reg->func, reg->lineno, reg->file);
- len += reg->len;
- if (reg->cache)
- cache_len += reg->len;
- count++;
- }
- }
- }
- ast_mutex_unlock(&reglock);
-
- if (cache_len)
- ast_cli(a->fd, "%d bytes allocated (%d in caches) in %d allocations\n", len, cache_len, count);
- else
- ast_cli(a->fd, "%d bytes allocated in %d allocations\n", len, count);
-
- return CLI_SUCCESS;
-}
-
-static char *handle_memory_show_summary(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
-{
- char *fn = NULL;
- int x;
- struct ast_region *reg;
- unsigned int len = 0;
- unsigned int cache_len = 0;
- int count = 0;
- struct file_summary {
- char fn[80];
- int len;
- int cache_len;
- int count;
- struct file_summary *next;
- } *list = NULL, *cur;
-
- switch (cmd) {
- case CLI_INIT:
- e->command = "memory show summary";
- e->usage =
- "Usage: memory show summary [<file>]\n"
- " Summarizes heap memory allocations by file, or optionally\n"
- "by function, if a file is specified\n";
- return NULL;
- case CLI_GENERATE:
- return NULL;
- }
-
- if (a->argc > 3)
- fn = a->argv[3];
-
- ast_mutex_lock(&reglock);
- for (x = 0; x < SOME_PRIME; x++) {
- for (reg = regions[x]; reg; reg = reg->next) {
- if (fn && strcasecmp(fn, reg->file))
- continue;
-
- for (cur = list; cur; cur = cur->next) {
- if ((!fn && !strcmp(cur->fn, reg->file)) || (fn && !strcmp(cur->fn, reg->func)))
- break;
- }
- if (!cur) {
- cur = alloca(sizeof(*cur));
- memset(cur, 0, sizeof(*cur));
- ast_copy_string(cur->fn, fn ? reg->func : reg->file, sizeof(cur->fn));
- cur->next = list;
- list = cur;
- }
-
- cur->len += reg->len;
- if (reg->cache)
- cur->cache_len += reg->len;
- cur->count++;
- }
- }
- ast_mutex_unlock(&reglock);
-
- /* Dump the whole list */
- for (cur = list; cur; cur = cur->next) {
- len += cur->len;
- cache_len += cur->cache_len;
- count += cur->count;
- if (cur->cache_len) {
- if (fn) {
- ast_cli(a->fd, "%10d bytes (%10d cache) in %d allocations in function '%s' of '%s'\n",
- cur->len, cur->cache_len, cur->count, cur->fn, fn);
- } else {
- ast_cli(a->fd, "%10d bytes (%10d cache) in %d allocations in file '%s'\n",
- cur->len, cur->cache_len, cur->count, cur->fn);
- }
- } else {
- if (fn) {
- ast_cli(a->fd, "%10d bytes in %d allocations in function '%s' of '%s'\n",
- cur->len, cur->count, cur->fn, fn);
- } else {
- ast_cli(a->fd, "%10d bytes in %d allocations in file '%s'\n",
- cur->len, cur->count, cur->fn);
- }
- }
- }
-
- if (cache_len)
- ast_cli(a->fd, "%d bytes allocated (%d in caches) in %d allocations\n", len, cache_len, count);
- else
- ast_cli(a->fd, "%d bytes allocated in %d allocations\n", len, count);
-
- return CLI_SUCCESS;
-}
-
-static struct ast_cli_entry cli_memory[] = {
- AST_CLI_DEFINE(handle_memory_show, "Display outstanding memory allocations"),
- AST_CLI_DEFINE(handle_memory_show_summary, "Summarize outstanding memory allocations"),
-};
-
-void __ast_mm_init(void)
-{
- char filename[PATH_MAX];
-
- ast_cli_register_multiple(cli_memory, sizeof(cli_memory) / sizeof(struct ast_cli_entry));
-
- snprintf(filename, sizeof(filename), "%s/mmlog", ast_config_AST_LOG_DIR);
-
- if (option_verbose)
- ast_verbose("Asterisk Malloc Debugger Started (see %s))\n", filename);
-
- if ((mmlog = fopen(filename, "a+"))) {
- fprintf(mmlog, "%ld - New session\n", (long)time(NULL));
- fflush(mmlog);
- }
-}
-
-#endif
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