[Asterisk-code-review] core: Improve MALLOC_DEBUG for frames. (asterisk[master])

Corey Farrell asteriskteam at digium.com
Fri Nov 8 09:24:37 CST 2019


Corey Farrell has uploaded this change for review. ( https://gerrit.asterisk.org/c/asterisk/+/13169 )


Change subject: core: Improve MALLOC_DEBUG for frames.
......................................................................

core: Improve MALLOC_DEBUG for frames.

* Pass caller information to frame allocation functions.
* Disable caching as it interfers with MALLOC_DEBUG reporting.
* Stop using ast_calloc_cache.

Change-Id: Id343cd80a3db941d2daefde2a060750fea8cd260
---
M channels/Makefile
M channels/iax2/parser.c
M include/asterisk/frame.h
M main/Makefile
M main/frame.c
5 files changed, 38 insertions(+), 26 deletions(-)



  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/69/13169/1

diff --git a/channels/Makefile b/channels/Makefile
index 96421d8..b641173 100644
--- a/channels/Makefile
+++ b/channels/Makefile
@@ -24,6 +24,8 @@
 endif
 
 $(call MOD_ADD_C,chan_iax2,$(wildcard iax2/*.c))
+iax2/parser.o: _ASTCFLAGS+=$(call get_menuselect_cflags,MALLOC_DEBUG)
+
 $(call MOD_ADD_C,chan_sip,$(wildcard sip/*.c))
 $(call MOD_ADD_C,chan_pjsip,$(wildcard pjsip/*.c))
 $(call MOD_ADD_C,chan_dahdi,$(wildcard dahdi/*.c) sig_analog.c sig_pri.c sig_ss7.c)
diff --git a/channels/iax2/parser.c b/channels/iax2/parser.c
index b94d306..8683938 100644
--- a/channels/iax2/parser.c
+++ b/channels/iax2/parser.c
@@ -52,7 +52,11 @@
 static int iframes = 0;
 static int oframes = 0;
 
-#if !defined(LOW_MEMORY)
+#if (defined(LOW_MEMORY) || defined(MALLOC_DEBUG)) && !defined(NO_FRAME_CACHE)
+#define NO_FRAME_CACHE
+#endif
+
+#if !defined(NO_FRAME_CACHE)
 static void frame_cache_cleanup(void *data);
 
 /*! \brief A per-thread cache of iax_frame structures */
@@ -1215,7 +1219,7 @@
 {
 	struct iax_frame *fr;
 
-#if !defined(LOW_MEMORY)
+#if !defined(NO_FRAME_CACHE)
 	if (cacheable) {
 		struct iax_frames *iax_frames;
 		struct iax_frame *smallest;
@@ -1243,13 +1247,13 @@
 					iax_frames->size--;
 					ast_free(smallest);
 				}
-				if (!(fr = ast_calloc_cache(1, sizeof(*fr) + datalen))) {
+				if (!(fr = ast_calloc(1, sizeof(*fr) + datalen))) {
 					return NULL;
 				}
 				fr->afdatalen = datalen;
 			}
 		} else {
-			if (!(fr = ast_calloc_cache(1, sizeof(*fr) + datalen))) {
+			if (!(fr = ast_calloc(1, sizeof(*fr) + datalen))) {
 				return NULL;
 			}
 			fr->afdatalen = datalen;
@@ -1280,7 +1284,7 @@
 
 void iax_frame_free(struct iax_frame *fr)
 {
-#if !defined(LOW_MEMORY)
+#if !defined(NO_FRAME_CACHE)
 	struct iax_frames *iax_frames = NULL;
 #endif
 
@@ -1295,7 +1299,7 @@
 	}
 	ast_atomic_fetchadd_int(&frames, -1);
 
-#if !defined(LOW_MEMORY)
+#if !defined(NO_FRAME_CACHE)
 	if (!fr->cacheable
 		|| !ast_opt_cache_media_frames
 		|| !(iax_frames = ast_threadstorage_get(&frame_cache, sizeof(*iax_frames)))) {
@@ -1319,7 +1323,7 @@
 	ast_free(fr);
 }
 
-#if !defined(LOW_MEMORY)
+#if !defined(NO_FRAME_CACHE)
 static void frame_cache_cleanup(void *data)
 {
 	struct iax_frames *framelist = data;
diff --git a/include/asterisk/frame.h b/include/asterisk/frame.h
index b618d19..780cba3 100644
--- a/include/asterisk/frame.h
+++ b/include/asterisk/frame.h
@@ -560,14 +560,16 @@
  * should be the last operation you do with that frame before freeing
  * it (or exiting the block, if the frame is on the stack.)
  */
-struct ast_frame *ast_frisolate(struct ast_frame *fr);
+#define ast_frisolate(fr) __ast_frisolate(fr, __FILE__, __LINE__, __PRETTY_FUNCTION__)
+struct ast_frame *__ast_frisolate(struct ast_frame *fr, const char *file, int line, const char *func);
 
 /*! \brief Copies a frame
  * \param fr frame to copy
  * Duplicates a frame -- should only rarely be used, typically frisolate is good enough
  * \return Returns a frame on success, NULL on error
  */
-struct ast_frame *ast_frdup(const struct ast_frame *fr);
+#define ast_frdup(fr) __ast_frdup(fr, __FILE__, __LINE__, __PRETTY_FUNCTION__)
+struct ast_frame *__ast_frdup(const struct ast_frame *fr, const char *file, int line, const char *func);
 
 void ast_swapcopy_samples(void *dst, const void *src, int samples);
 
diff --git a/main/Makefile b/main/Makefile
index a22a1ad..299998c 100644
--- a/main/Makefile
+++ b/main/Makefile
@@ -159,6 +159,7 @@
 crypt.o: _ASTCFLAGS+=$(CRYPT_INCLUDE)
 db.o: _ASTCFLAGS+=$(SQLITE3_INCLUDE)
 dsp.o: _ASTCFLAGS+=$(call get_menuselect_cflags,RADIO_RELAX)
+frame.o: _ASTCFLAGS+=$(call get_menuselect_cflags,MALLOC_DEBUG)
 http.o: _ASTCFLAGS+=$(GMIMECFLAGS)
 iostream.o: _ASTCFLAGS+=$(OPENSSL_INCLUDE)
 json.o: _ASTCFLAGS+=$(JANSSON_INCLUDE)
diff --git a/main/frame.c b/main/frame.c
index 208c82d..f7a5222 100644
--- a/main/frame.c
+++ b/main/frame.c
@@ -43,7 +43,11 @@
 #include "asterisk/dsp.h"
 #include "asterisk/file.h"
 
-#if !defined(LOW_MEMORY)
+#if (defined(LOW_MEMORY) || defined(MALLOC_DEBUG)) && !defined(NO_FRAME_CACHE)
+#define NO_FRAME_CACHE
+#endif
+
+#if !defined(NO_FRAME_CACHE)
 static void frame_cache_cleanup(void *data);
 
 /*! \brief A per-thread cache of frame headers */
@@ -72,11 +76,11 @@
 
 struct ast_frame ast_null_frame = { AST_FRAME_NULL, };
 
-static struct ast_frame *ast_frame_header_new(void)
+static struct ast_frame *ast_frame_header_new(const char *file, int line, const char *func)
 {
 	struct ast_frame *f;
 
-#if !defined(LOW_MEMORY)
+#if !defined(NO_FRAME_CACHE)
 	struct ast_frame_cache *frames;
 
 	if ((frames = ast_threadstorage_get(&frame_cache, sizeof(*frames)))) {
@@ -89,19 +93,18 @@
 			return f;
 		}
 	}
-	if (!(f = ast_calloc_cache(1, sizeof(*f))))
-		return NULL;
-#else
-	if (!(f = ast_calloc(1, sizeof(*f))))
-		return NULL;
 #endif
 
+	if (!(f = __ast_calloc(1, sizeof(*f), file, line, func))) {
+		return NULL;
+	}
+
 	f->mallocd_hdr_len = sizeof(*f);
 
 	return f;
 }
 
-#if !defined(LOW_MEMORY)
+#if !defined(NO_FRAME_CACHE)
 static void frame_cache_cleanup(void *data)
 {
 	struct ast_frame_cache *frames = data;
@@ -119,7 +122,7 @@
 	if (!fr->mallocd)
 		return;
 
-#if !defined(LOW_MEMORY)
+#if !defined(NO_FRAME_CACHE)
 	if (fr->mallocd == AST_MALLOCD_HDR
 		&& cache
 		&& ast_opt_cache_media_frames) {
@@ -185,7 +188,7 @@
  * (header, src, data).
  * On return all components are malloc'ed
  */
-struct ast_frame *ast_frisolate(struct ast_frame *fr)
+struct ast_frame *__ast_frisolate(struct ast_frame *fr, const char *file, int line, const char *func)
 {
 	struct ast_frame *out;
 	void *newdata;
@@ -194,7 +197,7 @@
 	   since it is more efficient
 	*/
 	if (fr->mallocd == 0) {
-		return ast_frdup(fr);
+		return __ast_frdup(fr, file, line, func);
 	}
 
 	/* if everything is already malloc'd, we are done */
@@ -205,7 +208,7 @@
 
 	if (!(fr->mallocd & AST_MALLOCD_HDR)) {
 		/* Allocate a new header if needed */
-		if (!(out = ast_frame_header_new())) {
+		if (!(out = ast_frame_header_new(file, line, func))) {
 			return NULL;
 		}
 		out->frametype = fr->frametype;
@@ -291,13 +294,13 @@
 	return out;
 }
 
-struct ast_frame *ast_frdup(const struct ast_frame *f)
+struct ast_frame *__ast_frdup(const struct ast_frame *f, const char *file, int line, const char *func)
 {
 	struct ast_frame *out = NULL;
 	int len, srclen = 0;
 	void *buf = NULL;
 
-#if !defined(LOW_MEMORY)
+#if !defined(NO_FRAME_CACHE)
 	struct ast_frame_cache *frames;
 #endif
 
@@ -313,7 +316,7 @@
 	if (srclen > 0)
 		len += srclen + 1;
 
-#if !defined(LOW_MEMORY)
+#if !defined(NO_FRAME_CACHE)
 	if ((frames = ast_threadstorage_get(&frame_cache, sizeof(*frames)))) {
 		AST_LIST_TRAVERSE_SAFE_BEGIN(&frames->list, out, frame_list) {
 			if (out->mallocd_hdr_len >= len) {
@@ -332,7 +335,7 @@
 #endif
 
 	if (!buf) {
-		if (!(buf = ast_calloc_cache(1, len)))
+		if (!(buf = __ast_calloc(1, len, file, line, func)))
 			return NULL;
 		out = buf;
 		out->mallocd_hdr_len = len;

-- 
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Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-Change-Id: Id343cd80a3db941d2daefde2a060750fea8cd260
Gerrit-Change-Number: 13169
Gerrit-PatchSet: 1
Gerrit-Owner: Corey Farrell <git at cfware.com>
Gerrit-MessageType: newchange
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