aboutsummaryrefslogtreecommitdiff
path: root/libio
diff options
context:
space:
mode:
Diffstat (limited to 'libio')
-rw-r--r--libio/Makefile2
-rw-r--r--libio/bits/stdio.h160
-rw-r--r--libio/iofread.c2
-rw-r--r--libio/iofread_u.c4
-rw-r--r--libio/iofwrite_u.c2
-rw-r--r--libio/stdio.h97
6 files changed, 173 insertions, 94 deletions
diff --git a/libio/Makefile b/libio/Makefile
index ca1a3e4b80..3dd3705b1a 100644
--- a/libio/Makefile
+++ b/libio/Makefile
@@ -21,7 +21,7 @@
#
subdir := libio
-headers := stdio.h libio.h _G_config.h
+headers := stdio.h libio.h _G_config.h bits/stdio.h
routines := \
filedoalloc iofclose iofdopen iofflush iofgetpos iofgets iofopen \
diff --git a/libio/bits/stdio.h b/libio/bits/stdio.h
new file mode 100644
index 0000000000..f47749e1d6
--- /dev/null
+++ b/libio/bits/stdio.h
@@ -0,0 +1,160 @@
+/* Optimizing macros and inline functions for stdio functions.
+ Copyright (C) 198 Free Software Foundation, Inc.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _STDIO_H
+# error "Never include <bits/stdio.h> directly; use <stdio.h> instead."
+#endif
+
+#ifdef __cplusplus
+# define __STDIO_INLINE inline
+#else
+# define __STDIO_INLINE extern __inline
+#endif
+
+
+#ifdef __USE_EXTERN_INLINES
+/* Write formatted output to stdout from argument list ARG. */
+__STDIO_INLINE int
+vprintf (__const char *__restrict __fmt, _G_va_list __arg) __THROW
+{
+ return vfprintf (stdout, __fmt, __arg);
+}
+
+/* Read a character from stdin. */
+__STDIO_INLINE int
+getchar (void) __THROW
+{
+ return _IO_getc (stdin);
+}
+
+
+# if defined __USE_POSIX || defined __USE_MISC
+/* This is defined in POSIX.1:1996. */
+__STDIO_INLINE int
+getc_unlocked (FILE *__fp) __THROW
+{
+ return _IO_getc_unlocked (__fp);
+}
+
+/* This is defined in POSIX.1:1996. */
+__STDIO_INLINE int
+getchar_unlocked (void) __THROW
+{
+ return _IO_getc_unlocked (stdin);
+}
+# endif /* POSIX || misc */
+
+
+/* Write a character to stdout. */
+__STDIO_INLINE int
+putchar (int __c) __THROW
+{
+ return _IO_putc (__c, stdout);
+}
+
+
+# ifdef __USE_MISC
+/* Faster version when locking is not necessary. */
+__STDIO_INLINE int
+fputc_unlocked (int __c, FILE *__stream) __THROW
+{
+ return _IO_putc_unlocked (__c, __stream);
+}
+# endif /* misc */
+
+
+# if defined __USE_POSIX || defined __USE_MISC
+/* This is defined in POSIX.1:1996. */
+__STDIO_INLINE int
+putc_unlocked (int __c, FILE *__stream) __THROW
+{
+ return _IO_putc_unlocked (__c, __stream);
+}
+
+/* This is defined in POSIX.1:1996. */
+__STDIO_INLINE int
+putchar_unlocked (int __c) __THROW
+{
+ return _IO_putc_unlocked (__c, stdout);
+}
+# endif /* POSIX || misc */
+
+
+# ifdef __USE_GNU
+/* Like `getdelim', but reads up to a newline. */
+__STDIO_INLINE _IO_ssize_t
+getline (char **__lineptr, size_t *__n, FILE *__stream) __THROW
+{
+ return __getdelim (__lineptr, __n, '\n', __stream);
+}
+# endif /* GNU */
+
+
+# ifdef __USE_MISC
+/* Faster versions when locking is not required. */
+__STDIO_INLINE int
+feof_unlocked (FILE *__stream) __THROW
+{
+ return _IO_feof_unlocked (__stream);
+}
+
+/* Faster versions when locking is not required. */
+__STDIO_INLINE int
+ferror_unlocked (FILE *__stream) __THROW
+{
+ return _IO_ferror_unlocked (__stream);
+}
+# endif /* misc */
+
+#endif /* Use extern inlines. */
+
+
+#if defined __USE_MISC && defined __GNUC__ && defined __OPTIMIZE__
+/* Perform some simple optimizations. */
+# define fread_unlocked(ptr, size, n, stream) \
+ (__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n) \
+ && (size_t) ((size) * (n)) <= 8) \
+ ? ({ char *__ptr = (char *) (ptr); \
+ FILE *__stream = (stream); \
+ int __c; \
+ size_t __cnt = (size) * (n); \
+ while (__cnt-- > 0) \
+ { \
+ __c = _IO_getc_unlocked (__stream); \
+ if (__c == EOF) \
+ break; \
+ *__ptr++ = __c; \
+ } \
+ ((size_t) ((size) * (n)) - __cnt) / (size); }) \
+ : fread_unlocked (ptr, size, n, stream)))
+
+# define fwrite_unlocked(ptr, size, n, stream) \
+ (__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n) \
+ && (size_t) ((size) * (n)) <= 8) \
+ ? ({ const char *__ptr = (const char *) (ptr); \
+ FILE *__stream = (stream); \
+ size_t __cnt = (size) * (n); \
+ while (__cnt-- > 0) \
+ if (_IO_putc_unlocked (*__ptr++, __stream) == EOF) \
+ break; \
+ ((size_t) ((size) * (n)) - __cnt) / (size); }) \
+ : fwrite_unlocked (ptr, size, n, stream)))
+#endif
+
+/* Define helper macro. */
+#undef __STDIO_INLINE
diff --git a/libio/iofread.c b/libio/iofread.c
index 36640065d5..c2d12d8693 100644
--- a/libio/iofread.c
+++ b/libio/iofread.c
@@ -32,7 +32,7 @@ _IO_fread (buf, size, count, fp)
_IO_size_t count;
_IO_FILE *fp;
{
- _IO_size_t bytes_requested = size*count;
+ _IO_size_t bytes_requested = size * count;
_IO_size_t bytes_read;
CHECK_FILE (fp, 0);
if (bytes_requested == 0)
diff --git a/libio/iofread_u.c b/libio/iofread_u.c
index 69627165eb..aeef514ed2 100644
--- a/libio/iofread_u.c
+++ b/libio/iofread_u.c
@@ -26,6 +26,8 @@
#include "libioP.h"
#include <stdio.h>
+#undef fread_unlocked
+
_IO_size_t
fread_unlocked (buf, size, count, fp)
void *buf;
@@ -33,7 +35,7 @@ fread_unlocked (buf, size, count, fp)
_IO_size_t count;
_IO_FILE *fp;
{
- _IO_size_t bytes_requested = size*count;
+ _IO_size_t bytes_requested = size * count;
_IO_size_t bytes_read;
CHECK_FILE (fp, 0);
if (bytes_requested == 0)
diff --git a/libio/iofwrite_u.c b/libio/iofwrite_u.c
index 3ffc9bff2b..38d1bd08a3 100644
--- a/libio/iofwrite_u.c
+++ b/libio/iofwrite_u.c
@@ -26,6 +26,8 @@
#include "libioP.h"
#include <stdio.h>
+#undef fwrite_unlocked
+
_IO_size_t
fwrite_unlocked (buf, size, count, fp)
const void *buf;
diff --git a/libio/stdio.h b/libio/stdio.h
index 4fd2e99453..cd7205f048 100644
--- a/libio/stdio.h
+++ b/libio/stdio.h
@@ -56,12 +56,6 @@ typedef struct _IO_FILE FILE;
#include <libio.h>
-#ifdef __cplusplus
-# define __STDIO_INLINE inline
-#else
-# define __STDIO_INLINE extern __inline
-#endif
-
/* The type of the second argument to `fgetpos' and `fsetpos'. */
#ifndef __USE_FILE_OFFSET64
typedef _G_fpos_t fpos_t;
@@ -267,14 +261,6 @@ extern int vsprintf __P ((char *__restrict __s,
__const char *__restrict __format,
_G_va_list __arg));
-#ifdef __USE_EXTERN_INLINES
-__STDIO_INLINE int
-vprintf (__const char *__restrict __fmt, _G_va_list __arg) __THROW
-{
- return vfprintf (stdout, __fmt, __arg);
-}
-#endif /* Use extern inlines. */
-
#if defined __USE_BSD || defined __USE_ISOC9X || defined __USE_UNIX98
/* Maximum chars of output to write in MAXLEN. */
extern int snprintf __P ((char *__restrict __s, size_t __maxlen,
@@ -352,32 +338,10 @@ extern int getchar __P ((void));
optimization for it. */
#define getc(_fp) _IO_getc (_fp)
-#ifdef __USE_EXTERN_INLINES
-__STDIO_INLINE int
-getchar (void) __THROW
-{
- return _IO_getc (stdin);
-}
-#endif /* Use extern inlines. */
-
#if defined __USE_POSIX || defined __USE_MISC
/* These are defined in POSIX.1:1996. */
extern int getc_unlocked __P ((FILE *__stream));
extern int getchar_unlocked __P ((void));
-
-# ifdef __USE_EXTERN_INLINES
-__STDIO_INLINE int
-getc_unlocked (FILE *__fp) __THROW
-{
- return _IO_getc_unlocked (__fp);
-}
-
-__STDIO_INLINE int
-getchar_unlocked (void) __THROW
-{
- return _IO_getc_unlocked (stdin);
-}
-# endif /* Use extern inlines. */
#endif /* Use POSIX or MISC. */
@@ -392,45 +356,15 @@ extern int putchar __P ((int __c));
so we always do the optimization for it. */
#define putc(_ch, _fp) _IO_putc (_ch, _fp)
-#ifdef __USE_EXTERN_INLINES
-__STDIO_INLINE int
-putchar (int __c) __THROW
-{
- return _IO_putc (__c, stdout);
-}
-#endif /* Use extern inlines. */
-
#ifdef __USE_MISC
/* Faster version when locking is not necessary. */
extern int fputc_unlocked __P ((int __c, FILE *__stream));
-
-# ifdef __USE_EXTERN_INLINES
-__STDIO_INLINE int
-fputc_unlocked (int __c, FILE *__stream) __THROW
-{
- return _IO_putc_unlocked (__c, __stream);
-}
-# endif /* Use extern inlines. */
#endif /* Use MISC. */
#if defined __USE_POSIX || defined __USE_MISC
/* These are defined in POSIX.1:1996. */
extern int putc_unlocked __P ((int __c, FILE *__stream));
extern int putchar_unlocked __P ((int __c));
-
-# ifdef __USE_EXTERN_INLINES
-__STDIO_INLINE int
-putc_unlocked (int __c, FILE *__stream) __THROW
-{
- return _IO_putc_unlocked (__c, __stream);
-}
-
-__STDIO_INLINE int
-putchar_unlocked (int __c) __THROW
-{
- return _IO_putc_unlocked (__c, stdout);
-}
-# endif /* Use extern inlines. */
#endif /* Use POSIX or MISC. */
@@ -472,14 +406,6 @@ extern _IO_ssize_t getdelim __P ((char **__lineptr, size_t *__n,
/* Like `getdelim', but reads up to a newline. */
extern _IO_ssize_t getline __P ((char **__lineptr, size_t *__n,
FILE *__stream));
-
-# ifdef __USE_EXTERN_INLINES
-__STDIO_INLINE _IO_ssize_t
-getline (char **__lineptr, size_t *__n, FILE *__stream) __THROW
-{
- return __getdelim (__lineptr, __n, '\n', __stream);
-}
-# endif /* Use extern inlines. */
#endif
@@ -603,20 +529,6 @@ extern int ferror __P ((FILE *__stream));
extern void clearerr_unlocked __P ((FILE *__stream));
extern int feof_unlocked __P ((FILE *__stream));
extern int ferror_unlocked __P ((FILE *__stream));
-
-# ifdef __USE_EXTERN_INLINES
-__STDIO_INLINE int
-feof_unlocked (FILE *__stream) __THROW
-{
- return _IO_feof_unlocked (__stream);
-}
-
-__STDIO_INLINE int
-ferror_unlocked (FILE *__stream) __THROW
-{
- return _IO_ferror_unlocked (__stream);
-}
-# endif /* Use extern inlines. */
#endif
@@ -702,10 +614,13 @@ extern void funlockfile __P ((FILE *__stream));
# include <getopt.h>
#endif
-__END_DECLS
+/* If we are compiling with optimizing read this file. It contains
+ several optizing inline functions and macros. */
+#ifdef __USE_EXTERN_INLINES
+# include <bits/stdio.h>
+#endif
-/* Define helper macro. */
-#undef __STDIO_INLINE
+__END_DECLS
#endif /* <stdio.h> included. */