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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 405036d..fce8a77 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));