Drop old SetResourceLock stuff in favor of mutos.

	* dcrt0.cc (_reslock): Remove.
	(__cygwin_user_data): Accommodate removal of resourcelocks member.
	(dll_crt0_0): Don't initialize resourcelocks.
	* exceptions.cc (_cygtls::signal_exit): Drop resourcelocks handling.
	* mmap.cc (mmap_guard): New muto.
	(LIST_LOCK): Define.
	(LIST_UNLOCK): Define.
	(mmap_list::search_record): Remove.
	(mmap_list::try_map): Include code for anonymous case from
	mmap_list::search_record.
	(mmap_is_attached_or_noreserve): Access bookkeeping lists in a thread
	safe way.
	(mmap64): Replace SetResourceLock/ReleaseResourceLock by
	LIST_LOCK/LIST_UNLOCK.  Lock at the latest possible point.
	(munmap): Replace SetResourceLock/ReleaseResourceLock by
	LIST_LOCK/LIST_UNLOCK.
	(msync): Ditto.
	(mprotect): Ditto.
	* thread.cc (ResourceLocks::Lock): Remove.
	(SetResourceLock): Remove.
	(ReleaseResourceLock): Remove.
	(ResourceLocks::Init): Remove.
	(ResourceLocks::Delete): Remove.
	* thread.h (SetResourceLock): Drop declaration.
	(ReleaseResourceLock): Ditto.
	(class ResourceLocks): Drop definition.
	* include/sys/cygwin.h (class ResourceLocks): Drop forward declaration.
	(struct per_process): Replace resourcelocks with additional unused2
	element.
	(per_process_overwrite): Accommodate above change.

1 files changed, 0 insertions, 37 deletions

diff --git a/winsup/cygwin/thread.cc b/winsup/cygwin/thread.cc
index 96397f5b0..d72692f05 100644
--- a/winsup/cygwin/thread.cc
+++ b/winsup/cygwin/thread.cc
@@ -286,43 +286,6 @@ semaphore::is_good_object (sem_t const * sem)
   return true;
 }
 
-LPCRITICAL_SECTION
-ResourceLocks::Lock (int _resid)
-{
-  return &lock;
-}
-
-void
-SetResourceLock (int _res_id, int _mode, const char *_function)
-{
-  EnterCriticalSection (user_data->resourcelocks->Lock (_res_id));
-}
-
-void
-ReleaseResourceLock (int _res_id, int _mode, const char *_function)
-{
-  LeaveCriticalSection (user_data->resourcelocks->Lock (_res_id));
-}
-
-void
-ResourceLocks::Init ()
-{
-  InitializeCriticalSection (&lock);
-  inited = true;
-  thread_printf ("lock %p inited by %p , %d", &lock, user_data, myself->pid);
-}
-
-void
-ResourceLocks::Delete ()
-{
-  if (inited)
-    {
-      thread_printf ("Close Resource Locks %p ", &lock);
-      DeleteCriticalSection (&lock);
-      inited = false;
-    }
-}
-
 void
 MTinterface::Init ()
 {