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Avoid potential crash when freeing a message queue. 

Properly initialize newly allocated messages.
This commit is contained in:
Alexandre Julliard 2005-03-05 10:51:35 +00:00
parent 55fe5e8102
commit d6885fe7d4
1 changed files with 14 additions and 1 deletions
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15
server/queue.c
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@ -255,6 +255,7 @@ static struct msg_queue *create_msg_queue( struct thread *thread, struct thread_
void free_msg_queue( struct thread *thread )
{
struct process *process = thread->process;
struct thread_input *input;
remove_thread_hooks( thread );
if (!thread->queue) return;
@ -269,7 +270,13 @@ void free_msg_queue( struct thread *thread )
process->idle_event = NULL;
}
}
release_thread_input( thread );
input = thread->queue->input;
if (input->msg_thread == thread)
{
release_object( input->msg_thread );
input->msg_thread = NULL;
input->msg = NULL;
}
release_object( thread->queue );
thread->queue = NULL;
}
@ -486,6 +493,8 @@ static struct message_result *alloc_message_result( struct msg_queue *send_queue
callback_msg->x = 0;
callback_msg->y = 0;
callback_msg->info = callback_data;
callback_msg->hook = 0;
callback_msg->hook_proc = NULL;
callback_msg->result = NULL;
callback_msg->data = NULL;
callback_msg->data_size = 0;
@ -1274,6 +1283,8 @@ void post_message( user_handle_t win, unsigned int message,
msg->x = 0;
msg->y = 0;
msg->info = 0;
msg->hook = 0;
msg->hook_proc = NULL;
msg->result = NULL;
msg->data = NULL;
msg->data_size = 0;
@ -1412,6 +1423,8 @@ DECL_HANDLER(send_message)
msg->x = req->x;
msg->y = req->y;
msg->info = req->info;
msg->hook = 0;
msg->hook_proc = NULL;
msg->result = NULL;
msg->data = NULL;
msg->data_size = 0;