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authorRoland McGrath <roland@gnu.org>1996-05-09 00:37:21 +0000
committerRoland McGrath <roland@gnu.org>1996-05-09 00:37:21 +0000
commit7c713e287e50dc338779ed1a6c6ac701720a3a41 (patch)
tree00dc9bb790eef870a0624a5813120cc3971b16ff /libio/libio.h
parentf0523145cc30a32daa64dd0bd5661b0b204f00da (diff)
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Wed May 8 20:04:29 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
	* Rules (subdir_install): Depend on $(common-objpfx)sor-$(subdir).
	[! libc.so-version]: Clear static-only-routines.
	($(common-objpfx)sor-$(subdir)): New target.
	[static-only-routines]: New static pattern rule for these .so's.
	* Makerules [libc.so-version] ($(slibdir)/libc.so): Target removed.
	[libc.so-version] ($(libdir)/libc.so, $(common-objpfx)libc-syms.so):
	New targets replace it.
	(install) [libc.so-version]: Depend on $(libdir)/libc.so instead of
	$(slibdir)/libc.so.
	* io/Makefile (static-only-routines): New variable.
	* configure.in: Check for tools objdump and objcopy, and for awk.
	* config.make.in (OBJDUMP, OBJCOPY, AWK): New variables.

Thu May  9 01:24:00 1996  Ulrich Drepper  <drepper@cygnus.com>

	* locale/programs/config.h: Remove definition of wint_t.

	* locale/programs/ld-collate.c: Include <wchar.h> instead of
	<wcstr.h>.

	* manual/time.texi: Add some more description for %U and %W
	format of strftime.  Describe new format %V of strftime.

	* resolv/gethnamaddr.c: Prevent warning by preventing variable
	definition.
	* stdio-common/_itoa.c: Ditto.

Tue May  7 23:43:07 1996  Ulrich Drepper  <drepper@cygnus.com>

	* libio/clearerr.c, libio/feof.c, libio/ferror.c, libio/fgetc.c,
	libio/fileno.c, libio/fputc.c, libio/freopen.c, libio/fseek.c,
	libio/genops.c, libio/getc.c, libio/getchar.c, libio/iofclose.c,
	libio/iofflush.c, libio/iofgetpos.c, libio/iofgets.c,
	libio/iofputs.c, libio/iofread.c, libio/iofsetpos.c,
	libio/ioftell.c, libio/iofwrite.c, libio/iogetdelim.c,
	libio/iogets.c, libio/ioputs.c, libio/iosetbuffer.c,
	libio/iosetvbuf.c, libio/ioungetc.c, libio/iovsprintf.c,
	libio/libio.h, libio/putc.c, libio/putchar.c, libio/rewind.c,
	libio/stdio.h, stdio-common/printf_fp.c, stdio-common/vfprintf.c,
	stdio-common/vfscanf.c: Prepare for reentrent libio.

	* libio/clearerr_u.c, libio/feof_u.c, libio/ferror_u.c,
	libio/fputc_u.c, libio/getc_u.c, libio/getchar_u.c,
	libio/iofflush_u.c, libio/putc_u.c, libio/putchar_u.c: New files.
	Used in reentrent libio.

	* misc/getusershell.c: Prevent warnings.
Diffstat (limited to 'libio/libio.h')
-rw-r--r--libio/libio.h38
1 files changed, 24 insertions, 14 deletions
diff --git a/libio/libio.h b/libio/libio.h
index 405036dfb6..fce8a77bf7 100644
--- a/libio/libio.h
+++ b/libio/libio.h
@@ -148,15 +148,13 @@ typedef struct
   int (*close) __P ((struct _IO_FILE *));
 } _IO_cookie_io_functions_t;
 
+/* Handle lock.  */
+#ifdef _IO_MTSAFE_IO
+typedef pthread_mutex_t _IO_lock_t;
+#else
+typedef void _IO_lock_t;
+#endif
 
-/* The reentrant version of the libio implementation needs a semaphore for
-   each _IO_FILE struture.  Because we don't know how the semaphore
-   will be implemented we try to be very general.  */
-struct _IO_lock_t {
-  void *ptr;
-  short int field1;
-  short int field2;
-};
 
 /* A streammarker remembers a position in a buffer. */
 
@@ -217,7 +215,7 @@ struct _IO_FILE {
 
   /*  char* _save_gptr;  char* _save_egptr; */
 
-  struct _IO_lock_t _IO_lock;
+  _IO_lock_t *_lock;
 };
 
 #ifndef __cplusplus
@@ -238,26 +236,38 @@ extern int __underflow __P((_IO_FILE*));
 extern int __uflow __P((_IO_FILE*));
 extern int __overflow __P((_IO_FILE*, int));
 
-#define _IO_getc(_fp) \
+#define _IO_getc_unlocked(_fp) \
        ((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end ? __uflow(_fp) \
 	: *(unsigned char*)(_fp)->_IO_read_ptr++)
-#define _IO_peekc(_fp) \
+#define _IO_peekc_unlocked(_fp) \
        ((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end \
 	  && __underflow(_fp) == EOF ? EOF \
 	: *(unsigned char*)(_fp)->_IO_read_ptr)
 
-#define _IO_putc(_ch, _fp) \
+#define _IO_putc_unlocked(_ch, _fp) \
    (((_fp)->_IO_write_ptr >= (_fp)->_IO_write_end) \
     ? __overflow(_fp, (unsigned char)(_ch)) \
     : (unsigned char)(*(_fp)->_IO_write_ptr++ = (_ch)))
 
-#define _IO_feof(__fp) (((__fp)->_flags & _IO_EOF_SEEN) != 0)
-#define _IO_ferror(__fp) (((__fp)->_flags & _IO_ERR_SEEN) != 0)
+#define _IO_feof_unlocked(__fp) (((__fp)->_flags & _IO_EOF_SEEN) != 0)
+#define _IO_ferror_unlocked(__fp) (((__fp)->_flags & _IO_ERR_SEEN) != 0)
 
 /* This one is for Emacs. */
 #define _IO_PENDING_OUTPUT_COUNT(_fp)	\
 	((_fp)->_IO_write_ptr - (_fp)->_IO_write_base)
 
+extern int _IO_getc_locked __P ((_IO_FILE *));
+extern int _IO_putc_locked __P ((int, _IO_FILE *));
+
+extern void _IO_flockfile __P ((_IO_FILE *));
+extern void _IO_funlockfile __P ((_IO_FILE *));
+
+#if !defined(_REENTRANT) && !defined(_THREAD_SAFE)
+# define _IO_flockfile(FILE) /**/
+# define _IO_funlockfile(FILE) /**/
+#endif /* _REENTRANT || _THREAD_SAFE */
+
+
 extern int _IO_vfscanf __P((_IO_FILE*, const char*, _IO_va_list, int*));
 extern int _IO_vfprintf __P((_IO_FILE*, const char*, _IO_va_list));
 extern _IO_ssize_t _IO_padn __P((_IO_FILE *, int, _IO_ssize_t));