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, 18 deletions

diff --git a/winsup/cygwin/thread.h b/winsup/cygwin/thread.h
index 029e35745..c52978f8f 100644
--- a/winsup/cygwin/thread.h
+++ b/winsup/cygwin/thread.h
@@ -35,13 +35,6 @@ enum cw_cancel_action
   cw_no_cancel
 };
 
-extern "C"
-{
-void SetResourceLock (int, int, const char *) __attribute__ ((regparm (3)));
-void ReleaseResourceLock (int, int, const char *)
-  __attribute__ ((regparm (3)));
-}
-
 DWORD cancelable_wait (HANDLE, DWORD, const cw_cancel_action = cw_cancel_self,
 		       const enum cw_sig_wait = cw_sig_nosig)
   __attribute__ ((regparm (3)));
@@ -92,17 +85,6 @@ private:
 class per_process;
 class pinfo;
 
-class ResourceLocks
-{
-public:
-  LPCRITICAL_SECTION Lock (int);
-  void Init ();
-  void Delete ();
-private:
-  CRITICAL_SECTION lock;
-  bool inited;
-};
-
 #define PTHREAD_MAGIC 0xdf0df045
 #define PTHREAD_MUTEX_MAGIC PTHREAD_MAGIC+1
 #define PTHREAD_KEY_MAGIC PTHREAD_MAGIC+2