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Throughout avoid having to initialize constant UNICODE_STRINGs.

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* globals.cc: Define constant UNICODE_STRINGs and store in .rdata
	section.
	* fhandler_disk_file.cc: Throughout, use readonly UNICODE_STRINGs
	rather then initializing local UNICODE_STRING variable where
	applicable.
	* fhandler_mem.cc (fhandler_dev_mem::open): Ditto.
	* flock.cc (inode_t::inode_t): Ditto.
	* mmap.cc: Ditto.
	* syscalls.cc: Ditto.
	* mount.cc (fs_info::update): Ditto.
	* path.cc: Ditto.

	* ntdll.h (RtlEqualUnicodePathPrefix): Redefine to take prefix as
	UNICODE_STRING.
	(RtlEqualUnicodePathSuffix): Redefine to take suffix as UNICODE_STRING.
	* fhandler_disk_file.cc: Accommodate throughout.
	* mount.cc (fs_info::update): Ditto.
	* path.cc (cwdstuff::set): Ditto.
	* syscalls.cc: Ditto.
This commit is contained in:
Corinna Vinschen
2009-07-14 17:37:42 +00:00
parent 472345a06c
commit 8deb411836
10 changed files with 98 additions and 75 deletions
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25
winsup/cygwin/globals.cc
View File

@@ -72,6 +72,31 @@ char NO_COPY almost_null[1];
char *old_title;
/* Heavily-used const UNICODE_STRINGs are defined here once. */
#define _ROU(_s) \
{ Length: sizeof (_s) - sizeof (WCHAR), \
MaximumLength: sizeof (_s), \
Buffer: (PWSTR) (_s) }
#define _RDATA __attribute__ ((section(".rdata")))
UNICODE_STRING _RDATA ro_u_empty = _ROU (L"");
UNICODE_STRING _RDATA ro_u_lnk = _ROU (L".lnk");
UNICODE_STRING _RDATA ro_u_exe = _ROU (L".exe");
UNICODE_STRING _RDATA ro_u_com = _ROU (L".com");
UNICODE_STRING _RDATA ro_u_proc = _ROU (L"proc");
UNICODE_STRING _RDATA ro_u_pmem = _ROU (L"\\device\\physicalmemory");
UNICODE_STRING _RDATA ro_u_mtx = _ROU (L"mtx");
UNICODE_STRING _RDATA ro_u_fat = _ROU (L"FAT");
UNICODE_STRING _RDATA ro_u_csc = _ROU (L"CSC-CACHE");
UNICODE_STRING _RDATA ro_u_ntfs = _ROU (L"NTFS");
UNICODE_STRING _RDATA ro_u_nfs = _ROU (L"NFS");
UNICODE_STRING _RDATA ro_u_unixfs = _ROU (L"UNIXFS");
UNICODE_STRING _RDATA ro_u_sunwnfs = _ROU (L"SUNWNFS");
UNICODE_STRING _RDATA ro_u_udf = _ROU (L"UDF");
UNICODE_STRING _RDATA ro_u_natp = _ROU (L"\\??\\");
UNICODE_STRING _RDATA ro_u_uncp = _ROU (L"\\??\\UNC\\");
#undef _RDATA
#undef _ROU
extern "C"
{
/* This is an exported copy of environ which can be used by DLLs