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Fulfull a feature request from Qwell on the "core show locks" output. It will

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now note the lock type for each lock that a thread holds.
(mutex, rdlock, or wrlock)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@84271 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Russell Bryant
2007-10-01 21:07:06 +00:00
parent b7f66e48e8
commit 5fdc354155
2 changed files with 39 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
include/asterisk/lock.h
View File

@@ -126,6 +126,12 @@ typedef pthread_cond_t ast_cond_t;
static pthread_mutex_t empty_mutex;
enum ast_lock_type {
AST_MUTEX,
AST_RDLOCK,
AST_WRLOCK,
};
/*!
* \brief Store lock info for the current thread
*
@@ -134,8 +140,8 @@ static pthread_mutex_t empty_mutex;
* lock info struct. The lock is marked as pending as the thread is waiting
* on the lock. ast_mark_lock_acquired() will mark it as held by this thread.
*/
void ast_store_lock_info(const char *filename, int line_num,
const char *func, const char *lock_name, void *lock_addr);
void ast_store_lock_info(enum ast_lock_type type, const char *filename,
int line_num, const char *func, const char *lock_name, void *lock_addr);
/*!
* \brief Mark the last lock as acquired
@@ -249,7 +255,7 @@ static inline int __ast_pthread_mutex_lock(const char *filename, int lineno, con
int canlog = strcmp(filename, "logger.c");
if (t->track)
ast_store_lock_info(filename, lineno, func, mutex_name, &t->mutex);
ast_store_lock_info(AST_MUTEX, filename, lineno, func, mutex_name, &t->mutex);
#if defined(AST_MUTEX_INIT_W_CONSTRUCTORS)
if ((t->mutex) == ((pthread_mutex_t) PTHREAD_MUTEX_INITIALIZER)) {
@@ -333,7 +339,7 @@ static inline int __ast_pthread_mutex_trylock(const char *filename, int lineno,
#endif /* AST_MUTEX_INIT_W_CONSTRUCTORS */
if (t->track)
ast_store_lock_info(filename, lineno, func, mutex_name, &t->mutex);
ast_store_lock_info(AST_MUTEX, filename, lineno, func, mutex_name, &t->mutex);
if (!(res = pthread_mutex_trylock(&t->mutex))) {
if (t->track)
@@ -469,7 +475,7 @@ static inline int __ast_cond_wait(const char *filename, int lineno, const char *
DO_THREAD_CRASH;
} else {
if (t->track)
ast_store_lock_info(filename, lineno, func, mutex_name, &t->mutex);
ast_store_lock_info(AST_MUTEX, filename, lineno, func, mutex_name, &t->mutex);
if (t->reentrancy < AST_MAX_REENTRANCY) {
t->file[t->reentrancy] = filename;
@@ -530,7 +536,7 @@ static inline int __ast_cond_timedwait(const char *filename, int lineno, const c
DO_THREAD_CRASH;
} else {
if (t->track)
ast_store_lock_info(filename, lineno, func, mutex_name, &t->mutex);
ast_store_lock_info(AST_MUTEX, filename, lineno, func, mutex_name, &t->mutex);
if (t->reentrancy < AST_MAX_REENTRANCY) {
t->file[t->reentrancy] = filename;
@@ -722,7 +728,7 @@ static inline int _ast_rwlock_rdlock(ast_rwlock_t *lock, const char *name,
const char *file, int line, const char *func)
{
int res;
ast_store_lock_info(file, line, func, name, lock);
ast_store_lock_info(AST_RDLOCK, file, line, func, name, lock);
res = pthread_rwlock_rdlock(lock);
if (!res)
ast_mark_lock_acquired();
@@ -738,7 +744,7 @@ static inline int _ast_rwlock_wrlock(ast_rwlock_t *lock, const char *name,
const char *file, int line, const char *func)
{
int res;
ast_store_lock_info(file, line, func, name, lock);
ast_store_lock_info(AST_WRLOCK, file, line, func, name, lock);
res = pthread_rwlock_wrlock(lock);
if (!res)
ast_mark_lock_acquired();
@@ -754,7 +760,7 @@ static inline int _ast_rwlock_tryrdlock(ast_rwlock_t *lock, const char *name,
const char *file, int line, const char *func)
{
int res;
ast_store_lock_info(file, line, func, name, lock);
ast_store_lock_info(AST_RDLOCK, file, line, func, name, lock);
res = pthread_rwlock_tryrdlock(lock);
if (!res)
ast_mark_lock_acquired();
@@ -770,7 +776,7 @@ static inline int _ast_rwlock_trywrlock(ast_rwlock_t *lock, const char *name,
const char *file, int line, const char *func)
{
int res;
ast_store_lock_info(file, line, func, name, lock);
ast_store_lock_info(AST_WRLOCK, file, line, func, name, lock);
res = pthread_rwlock_trywrlock(lock);
if (!res)
ast_mark_lock_acquired();
@@ -780,6 +786,7 @@ static inline int _ast_rwlock_trywrlock(ast_rwlock_t *lock, const char *name,
}
#else
static inline int ast_rwlock_unlock(ast_rwlock_t *prwlock)
{
return pthread_rwlock_unlock(prwlock);

26
main/utils.c
View File

@@ -538,6 +538,7 @@ struct thr_lock_info {
const char *lock_name;
void *lock_addr;
int times_locked;
enum ast_lock_type type;
/*! This thread is waiting on this lock */
unsigned int pending:1;
} locks[AST_MAX_LOCKS];
@@ -583,8 +584,8 @@ static void lock_info_destroy(void *data)
*/
AST_THREADSTORAGE_CUSTOM(thread_lock_info, thread_lock_info_init, lock_info_destroy);
void ast_store_lock_info(const char *filename, int line_num,
const char *func, const char *lock_name, void *lock_addr)
void ast_store_lock_info(enum ast_lock_type type, const char *filename,
int line_num, const char *func, const char *lock_name, void *lock_addr)
{
struct thr_lock_info *lock_info;
int i;
@@ -616,6 +617,7 @@ void ast_store_lock_info(const char *filename, int line_num,
lock_info->locks[i].lock_name = lock_name;
lock_info->locks[i].lock_addr = lock_addr;
lock_info->locks[i].times_locked = 1;
lock_info->locks[i].type = type;
lock_info->locks[i].pending = 1;
lock_info->num_locks++;
@@ -672,6 +674,20 @@ void ast_remove_lock_info(void *lock_addr)
pthread_mutex_unlock(&lock_info->lock);
}
static const char *locktype2str(enum ast_lock_type type)
{
switch (type) {
case AST_MUTEX:
return "MUTEX";
case AST_RDLOCK:
return "RDLOCK";
case AST_WRLOCK:
return "WRLOCK";
}
return "UNKNOWN";
}
static int handle_show_locks(int fd, int argc, char *argv[])
{
struct thr_lock_info *lock_info;
@@ -691,9 +707,11 @@ static int handle_show_locks(int fd, int argc, char *argv[])
lock_info->thread_name);
pthread_mutex_lock(&lock_info->lock);
for (i = 0; i < lock_info->num_locks; i++) {
ast_cli(fd, "=== ---> %sLock #%d: %s %d %s %s %p (%d)\n",
ast_cli(fd, "=== ---> %sLock #%d (%s): %s %d %s %s %p (%d)\n",
lock_info->locks[i].pending ? "Waiting for " : "", i,
lock_info->locks[i].file, lock_info->locks[i].line_num,
lock_info->locks[i].file,
locktype2str(lock_info->locks[i].type),
lock_info->locks[i].line_num,
lock_info->locks[i].func, lock_info->locks[i].lock_name,
lock_info->locks[i].lock_addr,
lock_info->locks[i].times_locked);