0469311e87
2002-01-07 Ulrich Drepper <drepper@redhat.com> * libio/fileops.c (_IO_file_underflow_mmap): New function. (_IO_file_close_mmap): New function. (_IO_file_jumps_mmap): New variable. * libio/wfileops.c (_IO_wfile_underflow): Reset read pointer before trying to convert rest of byte buffer. (_IO_wfile_underflow_mmap): New function. (_IO_wfile_jumps_mmap): New variable. * libio/iofopen.c (__fopen_maybe_mmap): New function. (__fopen_internal): New function. Split out from _IO_new_fopen. (_IO_new_fopen): Call __fopen_internal. * libio/iofopen64.c: Just call __fopen_internal. * libio/iofdopen.c: Call __fopen_maybe_mmap before returning successfully. * libio/iolibio.h: Declare __fopen_internal and __fopen_maybe_mmap. * libio/libioP.h: Declare _IO_file_jumps_mmap, _IO_wfile_jumps_mmap, _IO_file_close_mmap. * sysdeps/gnu/_G_config.h: Define _G_MMAP64. * sysdeps/unix/sysv/linux/cris/_G_config.h: Likewise. * stdio-common/Makefile (tests): Add tst-rndseek. * stdio-common/tst-rndseek.c: New file.
83 lines
3.8 KiB
C
83 lines
3.8 KiB
C
#include "libio.h"
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/* These emulate stdio functionality, but with a different name
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(_IO_ungetc instead of ungetc), and using _IO_FILE instead of FILE. */
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int _IO_fclose __P((_IO_FILE*));
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extern int _IO_new_fclose __P((_IO_FILE*));
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extern int _IO_old_fclose __P((_IO_FILE*));
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extern _IO_FILE *_IO_fdopen __P((int, const char*));
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extern _IO_FILE *_IO_old_fdopen __P((int, const char*));
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extern _IO_FILE *_IO_new_fdopen __P((int, const char*));
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extern int _IO_fflush __P((_IO_FILE*));
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extern int _IO_fgetpos __P((_IO_FILE*, _IO_fpos_t*));
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extern int _IO_fgetpos64 __P((_IO_FILE*, _IO_fpos64_t*));
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extern char* _IO_fgets __P((char*, int, _IO_FILE*));
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extern _IO_FILE *_IO_fopen __P((const char*, const char*));
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extern _IO_FILE *_IO_old_fopen __P((const char*, const char*));
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extern _IO_FILE *_IO_new_fopen __P((const char*, const char*));
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extern _IO_FILE *_IO_fopen64 __P((const char*, const char*));
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extern _IO_FILE *__fopen_internal __P((const char*, const char*, int));
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extern _IO_FILE *__fopen_maybe_mmap __P((_IO_FILE *));
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extern int _IO_fprintf __P((_IO_FILE*, const char*, ...));
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extern int _IO_fputs __P((const char*, _IO_FILE*));
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extern int _IO_fsetpos __P((_IO_FILE*, const _IO_fpos_t *));
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extern int _IO_fsetpos64 __P((_IO_FILE*, const _IO_fpos64_t *));
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extern long int _IO_ftell __P((_IO_FILE*));
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extern _IO_size_t _IO_fread __P((void*, _IO_size_t, _IO_size_t, _IO_FILE*));
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extern _IO_size_t _IO_fwrite __P((const void*,
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_IO_size_t, _IO_size_t, _IO_FILE*));
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extern char* _IO_gets __P((char*));
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extern void _IO_perror __P((const char*));
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extern int _IO_printf __P((const char*, ...));
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extern int _IO_puts __P((const char*));
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extern int _IO_scanf __P((const char*, ...));
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extern void _IO_setbuffer __P((_IO_FILE *, char*, _IO_size_t));
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extern int _IO_setvbuf __P((_IO_FILE*, char*, int, _IO_size_t));
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extern int _IO_sscanf __P((const char*, const char*, ...));
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extern int _IO_sprintf __P((char *, const char*, ...));
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extern int _IO_ungetc __P((int, _IO_FILE*));
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extern int _IO_vsscanf __P((const char *, const char *, _IO_va_list));
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extern int _IO_vsprintf __P((char*, const char*, _IO_va_list));
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extern int _IO_vswprintf __P((wchar_t*, _IO_size_t, const wchar_t*,
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_IO_va_list));
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struct obstack;
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extern int _IO_obstack_vprintf __P ((struct obstack *, const char *,
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_IO_va_list));
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extern int _IO_obstack_printf __P ((struct obstack *, const char *, ...));
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#ifndef _IO_pos_BAD
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#define _IO_pos_BAD ((_IO_off64_t)(-1))
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#endif
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#define _IO_clearerr(FP) ((FP)->_flags &= ~(_IO_ERR_SEEN|_IO_EOF_SEEN))
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#define _IO_fseek(__fp, __offset, __whence) \
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(_IO_seekoff(__fp, __offset, __whence, _IOS_INPUT|_IOS_OUTPUT) == _IO_pos_BAD ? EOF : 0)
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#define _IO_rewind(FILE) (void)_IO_seekoff(FILE, 0, 0, _IOS_INPUT|_IOS_OUTPUT)
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#define _IO_vprintf(FORMAT, ARGS) _IO_vfprintf(_IO_stdout, FORMAT, ARGS)
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#define _IO_freopen(FILENAME, MODE, FP) \
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(_IO_file_close_it(FP), _IO_file_fopen(FP, FILENAME, MODE, 1))
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#define _IO_old_freopen(FILENAME, MODE, FP) \
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(_IO_old_file_close_it (FP), _IO_old_file_fopen(FP, FILENAME, MODE))
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#define _IO_freopen64(FILENAME, MODE, FP) \
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(_IO_file_close_it(FP), _IO_file_fopen(FP, FILENAME, MODE, 0))
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#define _IO_fileno(FP) ((FP)->_fileno)
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extern _IO_FILE* _IO_popen __P((const char*, const char*));
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extern _IO_FILE* _IO_new_popen __P((const char*, const char*));
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extern _IO_FILE* _IO_old_popen __P((const char*, const char*));
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extern int __new_pclose __P((_IO_FILE *));
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extern int __old_pclose __P((_IO_FILE *));
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#define _IO_pclose _IO_fclose
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#define _IO_setbuf(_FP, _BUF) _IO_setbuffer(_FP, _BUF, _IO_BUFSIZ)
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#define _IO_setlinebuf(_FP) _IO_setvbuf(_FP, NULL, 1, 0)
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_IO_FILE *__new_freopen __P ((const char *, const char *, _IO_FILE *));
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_IO_FILE *__old_freopen __P ((const char *, const char *, _IO_FILE *));
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#ifdef __cplusplus
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}
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#endif
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