Make the lock in the threadstorage debugging code untracked to avoid a deadlock

on thread destruction.

(closes issue #11207)
Reported by: ys
Patches:
      threadstorage.c.diff uploaded by ys (license 281)

Also fixes an open bug report: (closes issue #11446)

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@91192 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/main/threadstorage.c b/main/threadstorage.c
index b43568e0807ebc1f894a9f7a50e1388aaff6de68..54b37b073cffa7ab38128eca6270200d299ba332 100644 (file)
--- a/main/threadstorage.c
+++ b/main/threadstorage.c
@@ -50,7 +50,9 @@ struct tls_object {
        AST_LIST_ENTRY(tls_object) entry;
 };
 
-static AST_LIST_HEAD_STATIC(tls_objects, tls_object);
+static AST_LIST_HEAD_NOLOCK_STATIC(tls_objects, tls_object);
+AST_MUTEX_DEFINE_STATIC_NOTRACKING(threadstoragelock);
+
 
 void __ast_threadstorage_object_add(void *key, size_t len, const char *file, const char *function, unsigned int line)
 {
@@ -66,16 +68,16 @@ void __ast_threadstorage_object_add(void *key, size_t len, const char *file, con
        to->line = line;
        to->thread = pthread_self();
 
-       AST_LIST_LOCK(&tls_objects);
+       ast_mutex_lock(&threadstoragelock);
        AST_LIST_INSERT_TAIL(&tls_objects, to, entry);
-       AST_LIST_UNLOCK(&tls_objects);
+       ast_mutex_unlock(&threadstoragelock);
 }
 
 void __ast_threadstorage_object_remove(void *key)
 {
        struct tls_object *to;
 
-       AST_LIST_LOCK(&tls_objects);
+       ast_mutex_lock(&threadstoragelock);
        AST_LIST_TRAVERSE_SAFE_BEGIN(&tls_objects, to, entry) {
                if (to->key == key) {
                        AST_LIST_REMOVE_CURRENT(&tls_objects, entry);
@@ -83,7 +85,7 @@ void __ast_threadstorage_object_remove(void *key)
                }
        }
        AST_LIST_TRAVERSE_SAFE_END;
-       AST_LIST_UNLOCK(&tls_objects);
+       ast_mutex_unlock(&threadstoragelock);
        if (to)
                free(to);
 }
@@ -92,7 +94,7 @@ void __ast_threadstorage_object_replace(void *key_old, void *key_new, size_t len
 {
        struct tls_object *to;
 
-       AST_LIST_LOCK(&tls_objects);
+       ast_mutex_lock(&threadstoragelock);
        AST_LIST_TRAVERSE_SAFE_BEGIN(&tls_objects, to, entry) {
                if (to->key == key_old) {
                        to->key = key_new;
@@ -101,7 +103,7 @@ void __ast_threadstorage_object_replace(void *key_old, void *key_new, size_t len
                }
        }
        AST_LIST_TRAVERSE_SAFE_END;
-       AST_LIST_UNLOCK(&tls_objects);
+       ast_mutex_unlock(&threadstoragelock);
 }
 
 static int handle_show_allocations(int fd, int argc, char *argv[])
@@ -114,7 +116,7 @@ static int handle_show_allocations(int fd, int argc, char *argv[])
        if (argc > 3)
                fn = argv[3];
 
-       AST_LIST_LOCK(&tls_objects);
+       ast_mutex_lock(&threadstoragelock);
 
        AST_LIST_TRAVERSE(&tls_objects, to, entry) {
                if (fn && strcasecmp(to->file, fn))
@@ -126,7 +128,7 @@ static int handle_show_allocations(int fd, int argc, char *argv[])
                count++;
        }
 
-       AST_LIST_UNLOCK(&tls_objects);
+       ast_mutex_unlock(&threadstoragelock);
 
        ast_cli(fd, "%10d bytes allocated in %d allocation%s\n", (int) len, count, count > 1 ? "s" : "");
        
@@ -150,7 +152,7 @@ static int handle_show_summary(int fd, int argc, char *argv[])
        if (argc > 3)
                fn = argv[3];
 
-       AST_LIST_LOCK(&tls_objects);
+       ast_mutex_lock(&threadstoragelock);
 
        AST_LIST_TRAVERSE(&tls_objects, to, entry) {
                if (fn && strcasecmp(to->file, fn))
@@ -172,7 +174,7 @@ static int handle_show_summary(int fd, int argc, char *argv[])
                file->count++;
        }
 
-       AST_LIST_UNLOCK(&tls_objects);
+       ast_mutex_unlock(&threadstoragelock);
        
        AST_LIST_TRAVERSE(&file_summary, file, entry) {
                len += file->len;