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Drop old SetResourceLock stuff in favor of mutos.

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* 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.
This commit is contained in:
Corinna Vinschen
2007-11-27 14:45:14 +00:00
parent 230a3c86d1
commit a1591d3be7
7 changed files with 85 additions and 118 deletions
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7
winsup/cygwin/include/sys/cygwin.h
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@ -140,7 +140,6 @@ extern HANDLE cygwin_logon_user (const struct passwd *, const char *);
*/
#ifdef __cplusplus
class ResourceLocks;
class MTinterface;
#endif
@ -198,18 +197,16 @@ struct per_process
DWORD api_minor; /* linked with */
/* For future expansion, so apps won't have to be relinked if we
add an item. */
DWORD unused2[5];
DWORD unused2[6];
#if defined (__INSIDE_CYGWIN__) && defined (__cplusplus)
ResourceLocks *resourcelocks;
MTinterface *threadinterface;
#else
void *resourcelocks;
void *threadinterface;
#endif
struct _reent *impure_ptr;
};
#define per_process_overwrite ((unsigned) &(((struct per_process *) NULL)->resourcelocks))
#define per_process_overwrite ((unsigned) &(((struct per_process *) NULL)->threadinterface))
extern void cygwin_premain0 (int argc, char **argv, struct per_process *);
extern void cygwin_premain1 (int argc, char **argv, struct per_process *);