1 /* perlsdio.h 2 * 3 * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 4 * 2002, 2003, 2006, 2007, 2008 by Larry Wall and others 5 * 6 * You may distribute under the terms of either the GNU General Public 7 * License or the Artistic License, as specified in the README file. 8 * 9 */ 10 11 #ifdef PERLIO_IS_STDIO 12 13 #ifdef NETWARE 14 #include "nwstdio.h" 15 #else 16 17 /* 18 * This file #define-s the PerlIO_xxx abstraction onto stdio functions. 19 * Make this as close to original stdio as possible. 20 */ 21 #define PerlIO FILE 22 #define PerlIO_stderr() PerlSIO_stderr 23 #define PerlIO_stdout() PerlSIO_stdout 24 #define PerlIO_stdin() PerlSIO_stdin 25 26 #define PerlIO_isutf8(f) 0 27 28 #define PerlIO_printf PerlSIO_printf 29 #define PerlIO_stdoutf PerlSIO_stdoutf 30 #define PerlIO_vprintf(f,fmt,a) PerlSIO_vprintf(f,fmt,a) 31 #define PerlIO_write(f,buf,count) PerlSIO_fwrite(buf,1,count,f) 32 #define PerlIO_unread(f,buf,count) (-1) 33 #define PerlIO_open PerlSIO_fopen 34 #define PerlIO_fdopen PerlSIO_fdopen 35 #define PerlIO_reopen PerlSIO_freopen 36 #define PerlIO_close(f) PerlSIO_fclose(f) 37 #define PerlIO_puts(f,s) PerlSIO_fputs(f,s) 38 #define PerlIO_putc(f,c) PerlSIO_fputc(f,c) 39 #if defined(VMS) 40 # if defined(__DECC) 41 /* Unusual definition of ungetc() here to accomodate fast_sv_gets()' 42 * belief that it can mix getc/ungetc with reads from stdio buffer */ 43 int decc$ungetc(int __c, FILE *__stream); 44 # define PerlIO_ungetc(f,c) ((c) == EOF ? EOF : \ 45 ((*(f) && !((*(f))->_flag & _IONBF) && \ 46 ((*(f))->_ptr > (*(f))->_base)) ? \ 47 ((*(f))->_cnt++, *(--(*(f))->_ptr) = (c)) : decc$ungetc(c,f))) 48 # else 49 # define PerlIO_ungetc(f,c) ungetc(c,f) 50 # endif 51 /* Work around bug in DECCRTL/AXP (DECC v5.x) and some versions of old 52 * VAXCRTL which causes read from a pipe after EOF has been returned 53 * once to hang. 54 */ 55 # define PerlIO_getc(f) \ 56 (feof(f) ? EOF : getc(f)) 57 # define PerlIO_read(f,buf,count) \ 58 (feof(f) ? 0 : (SSize_t)fread(buf,1,count,f)) 59 # define PerlIO_tell(f) ftell(f) 60 #else 61 # define PerlIO_getc(f) PerlSIO_fgetc(f) 62 # define PerlIO_ungetc(f,c) PerlSIO_ungetc(c,f) 63 # define PerlIO_read(f,buf,count) (SSize_t)PerlSIO_fread(buf,1,count,f) 64 # define PerlIO_tell(f) PerlSIO_ftell(f) 65 #endif 66 #define PerlIO_eof(f) PerlSIO_feof(f) 67 #define PerlIO_getname(f,b) fgetname(f,b) 68 #define PerlIO_error(f) PerlSIO_ferror(f) 69 #define PerlIO_fileno(f) PerlSIO_fileno(f) 70 #define PerlIO_clearerr(f) PerlSIO_clearerr(f) 71 #define PerlIO_flush(f) PerlSIO_fflush(f) 72 #if defined(VMS) && !defined(__DECC) 73 /* Old VAXC RTL doesn't reset EOF on seek; Perl folk seem to expect this */ 74 #define PerlIO_seek(f,o,w) (((f) && (*f) && ((*f)->_flag &= ~_IOEOF)),fseek(f,o,w)) 75 #else 76 # define PerlIO_seek(f,o,w) PerlSIO_fseek(f,o,w) 77 #endif 78 79 #define PerlIO_rewind(f) PerlSIO_rewind(f) 80 #define PerlIO_tmpfile() PerlSIO_tmpfile() 81 82 #define PerlIO_importFILE(f,fl) (f) 83 #define PerlIO_exportFILE(f,fl) (f) 84 #define PerlIO_findFILE(f) (f) 85 #define PerlIO_releaseFILE(p,f) ((void) 0) 86 87 #ifdef HAS_SETLINEBUF 88 #define PerlIO_setlinebuf(f) PerlSIO_setlinebuf(f); 89 #else 90 #define PerlIO_setlinebuf(f) PerlSIO_setvbuf(f, NULL, _IOLBF, 0); 91 #endif 92 93 /* Now our interface to Configure's FILE_xxx macros */ 94 95 #ifdef USE_STDIO_PTR 96 #define PerlIO_has_cntptr(f) 1 97 #define PerlIO_get_ptr(f) PerlSIO_get_ptr(f) 98 #define PerlIO_get_cnt(f) PerlSIO_get_cnt(f) 99 100 #ifdef STDIO_CNT_LVALUE 101 #define PerlIO_canset_cnt(f) 1 102 #define PerlIO_set_cnt(f,c) PerlSIO_set_cnt(f,c) 103 #ifdef STDIO_PTR_LVALUE 104 #ifdef STDIO_PTR_LVAL_NOCHANGE_CNT 105 #define PerlIO_fast_gets(f) 1 106 #endif 107 #endif /* STDIO_PTR_LVALUE */ 108 #else /* STDIO_CNT_LVALUE */ 109 #define PerlIO_canset_cnt(f) 0 110 #define PerlIO_set_cnt(f,c) abort() 111 #endif 112 113 #ifdef STDIO_PTR_LVALUE 114 #ifdef STDIO_PTR_LVAL_NOCHANGE_CNT 115 #define PerlIO_set_ptrcnt(f,p,c) STMT_START {PerlSIO_set_ptr(f,p), PerlIO_set_cnt(f,c);} STMT_END 116 #else 117 #ifdef STDIO_PTR_LVAL_SETS_CNT 118 /* assert() may pre-process to ""; potential syntax error (FILE_ptr(), ) */ 119 #define PerlIO_set_ptrcnt(f,p,c) STMT_START {PerlSIO_set_ptr(f,p); assert(PerlSIO_get_cnt(f) == (c));} STMT_END 120 #define PerlIO_fast_gets(f) 1 121 #else 122 #define PerlIO_set_ptrcnt(f,p,c) abort() 123 #endif 124 #endif 125 #endif 126 127 #else /* USE_STDIO_PTR */ 128 129 #define PerlIO_has_cntptr(f) 0 130 #define PerlIO_canset_cnt(f) 0 131 #define PerlIO_get_cnt(f) (abort(),0) 132 #define PerlIO_get_ptr(f) (abort(),(void *)0) 133 #define PerlIO_set_cnt(f,c) abort() 134 #define PerlIO_set_ptrcnt(f,p,c) abort() 135 136 #endif /* USE_STDIO_PTR */ 137 138 #ifndef PerlIO_fast_gets 139 #define PerlIO_fast_gets(f) 0 140 #endif 141 142 143 #ifdef FILE_base 144 #define PerlIO_has_base(f) 1 145 #define PerlIO_get_base(f) PerlSIO_get_base(f) 146 #define PerlIO_get_bufsiz(f) PerlSIO_get_bufsiz(f) 147 #else 148 #define PerlIO_has_base(f) 0 149 #define PerlIO_get_base(f) (abort(),(void *)0) 150 #define PerlIO_get_bufsiz(f) (abort(),0) 151 #endif 152 153 #endif /* NETWARE */ 154 #endif /* PERLIO_IS_STDIO */ 155 156 /* 157 * Local variables: 158 * c-indentation-style: bsd 159 * c-basic-offset: 4 160 * indent-tabs-mode: t 161 * End: 162 * 163 * ex: set ts=8 sts=4 sw=4 noet: 164 */ 165