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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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6
winsup/cygwin/dcrt0.cc
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@@ -80,7 +80,6 @@ bool NO_COPY cygwin_finished_initializing;
measure to allow an orderly transfer to the new, correct sigmask method. */
unsigned NO_COPY int signal_shift_subtract = 1;
ResourceLocks _reslock NO_COPY;
MTinterface _mtinterf;
bool NO_COPY _cygwin_testing;
@@ -113,8 +112,8 @@ extern "C"
/* hmodule */ NULL,
/* api_major */ CYGWIN_VERSION_API_MAJOR,
/* api_minor */ CYGWIN_VERSION_API_MINOR,
/* unused2 */ {0, 0, 0, 0, 0},
/* resourcelocks */ &_reslock, /* threadinterface */ &_mtinterf,
/* unused2 */ {0, 0, 0, 0, 0, 0},
/* threadinterface */ &_mtinterf,
/* impure_ptr */ _GLOBAL_REENT,
};
bool ignore_case_with_glob;
@@ -759,7 +758,6 @@ dll_crt0_0 ()
}
}
user_data->resourcelocks->Init ();
user_data->threadinterface->Init ();
_cygtls::init ();