From 20894e2ffba12544247908b61a70aec774fde068 Mon Sep 17 00:00:00 2001
From: Alexandre Julliard <julliard@winehq.org>
Date: Fri, 25 Feb 2005 16:58:43 +0000
Subject: [PATCH] Convert the per-thread mutex list to a standard list.

---
 server/mutex.c  | 19 +++++++------------
 server/thread.c |  2 +-
 server/thread.h |  3 +--
 3 files changed, 9 insertions(+), 15 deletions(-)

diff --git a/server/mutex.c b/server/mutex.c
index af13dd9ee80..1b1ef37b21e 100644
--- a/server/mutex.c
+++ b/server/mutex.c
@@ -37,8 +37,7 @@ struct mutex
     struct thread *owner;           /* mutex owner */
     unsigned int   count;           /* recursion count */
     int            abandoned;       /* has it been abandoned? */
-    struct mutex  *next;
-    struct mutex  *prev;
+    struct list    entry;           /* entry in owner thread mutex list */
 };
 
 static void mutex_dump( struct object *obj, int verbose );
@@ -71,7 +70,6 @@ static struct mutex *create_mutex( const WCHAR *name, size_t len, int owned )
             mutex->count = 0;
             mutex->owner = NULL;
             mutex->abandoned = 0;
-            mutex->next = mutex->prev = NULL;
             if (owned) mutex_satisfied( &mutex->obj, current );
         }
     }
@@ -83,19 +81,18 @@ static void do_release( struct mutex *mutex )
 {
     assert( !mutex->count );
     /* remove the mutex from the thread list of owned mutexes */
-    if (mutex->next) mutex->next->prev = mutex->prev;
-    if (mutex->prev) mutex->prev->next = mutex->next;
-    else mutex->owner->mutex = mutex->next;
+    list_remove( &mutex->entry );
     mutex->owner = NULL;
-    mutex->next = mutex->prev = NULL;
     wake_up( &mutex->obj, 0 );
 }
 
 void abandon_mutexes( struct thread *thread )
 {
-    while (thread->mutex)
+    struct list *ptr;
+
+    while ((ptr = list_head( &thread->mutex_list )) != NULL)
     {
-        struct mutex *mutex = thread->mutex;
+        struct mutex *mutex = LIST_ENTRY( ptr, struct mutex, entry );
         assert( mutex->owner == thread );
         mutex->count = 0;
         mutex->abandoned = 1;
@@ -129,9 +126,7 @@ static int mutex_satisfied( struct object *obj, struct thread *thread )
     {
         assert( !mutex->owner );
         mutex->owner = thread;
-        mutex->prev  = NULL;
-        if ((mutex->next = thread->mutex)) mutex->next->prev = mutex;
-        thread->mutex = mutex;
+        list_add_head( &thread->mutex_list, &mutex->entry );
     }
     if (!mutex->abandoned) return 0;
     mutex->abandoned = 0;
diff --git a/server/thread.c b/server/thread.c
index 1e2abbd64a3..816f3bfeead 100644
--- a/server/thread.c
+++ b/server/thread.c
@@ -115,7 +115,6 @@ inline static void init_thread_structure( struct thread *thread )
     thread->unix_tid        = -1;  /* not known yet */
     thread->context         = NULL;
     thread->teb             = NULL;
-    thread->mutex           = NULL;
     thread->debug_ctx       = NULL;
     thread->debug_event     = NULL;
     thread->queue           = NULL;
@@ -139,6 +138,7 @@ inline static void init_thread_structure( struct thread *thread )
     thread->creation_time   = time(NULL);
     thread->exit_time       = 0;
 
+    list_init( &thread->mutex_list );
     list_init( &thread->system_apc );
     list_init( &thread->user_apc );
 
diff --git a/server/thread.h b/server/thread.h
index 887b8fe463f..924c4717bfe 100644
--- a/server/thread.h
+++ b/server/thread.h
@@ -29,7 +29,6 @@
 struct process;
 struct thread_wait;
 struct thread_apc;
-struct mutex;
 struct debug_ctx;
 struct debug_event;
 struct msg_queue;
@@ -57,7 +56,7 @@ struct thread
     struct thread         *proc_prev;
     struct process        *process;
     thread_id_t            id;            /* thread id */
-    struct mutex          *mutex;         /* list of currently owned mutexes */
+    struct list            mutex_list;    /* list of currently owned mutexes */
     struct debug_ctx      *debug_ctx;     /* debugger context if this thread is a debugger */
     struct debug_event    *debug_event;   /* debug event being sent to debugger */
     struct msg_queue      *queue;         /* message queue */
-- 
2.11.4.GIT