Edit File: perlsdio.h
/* perlsdio.h * * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, * 2002, 2003, 2006, 2007, 2008 by Larry Wall and others * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. * */ #ifdef PERLIO_IS_STDIO #ifdef NETWARE #include "nwstdio.h" #else /* * This file #define-s the PerlIO_xxx abstraction onto stdio functions. * Make this as close to original stdio as possible. */ #define PerlIO FILE #define PerlIO_stderr() PerlSIO_stderr #define PerlIO_stdout() PerlSIO_stdout #define PerlIO_stdin() PerlSIO_stdin #define PerlIO_isutf8(f) 0 #define PerlIO_printf PerlSIO_printf #define PerlIO_stdoutf PerlSIO_stdoutf #define PerlIO_vprintf(f,fmt,a) PerlSIO_vprintf(f,fmt,a) #define PerlIO_write(f,buf,count) PerlSIO_fwrite(buf,1,count,f) #define PerlIO_unread(f,buf,count) (-1) #define PerlIO_open PerlSIO_fopen #define PerlIO_fdopen PerlSIO_fdopen #define PerlIO_reopen PerlSIO_freopen #define PerlIO_close(f) PerlSIO_fclose(f) #define PerlIO_puts(f,s) PerlSIO_fputs(s,f) #define PerlIO_putc(f,c) PerlSIO_fputc(c,f) #if defined(VMS) # if defined(__DECC) /* Unusual definition of ungetc() here to accommodate fast_sv_gets()' * belief that it can mix getc/ungetc with reads from stdio buffer */ int decc$ungetc(int __c, FILE *__stream); # define PerlIO_ungetc(f,c) ((c) == EOF ? EOF : \ ((*(f) && !((*(f))->_flag & _IONBF) && \ ((*(f))->_ptr > (*(f))->_base)) ? \ ((*(f))->_cnt++, *(--(*(f))->_ptr) = (c)) : decc$ungetc(c,f))) # else # define PerlIO_ungetc(f,c) ungetc(c,f) # endif /* Work around bug in DECCRTL/AXP (DECC v5.x) and some versions of old * VAXCRTL which causes read from a pipe after EOF has been returned * once to hang. */ # define PerlIO_getc(f) \ (feof(f) ? EOF : getc(f)) # define PerlIO_read(f,buf,count) \ (feof(f) ? 0 : (SSize_t)fread(buf,1,count,f)) # define PerlIO_tell(f) ftell(f) #else # define PerlIO_getc(f) PerlSIO_fgetc(f) # define PerlIO_ungetc(f,c) PerlSIO_ungetc(c,f) # define PerlIO_read(f,buf,count) (SSize_t)PerlSIO_fread(buf,1,count,f) # define PerlIO_tell(f) PerlSIO_ftell(f) #endif #define PerlIO_eof(f) PerlSIO_feof(f) #define PerlIO_getname(f,b) fgetname(f,b) #define PerlIO_error(f) PerlSIO_ferror(f) #define PerlIO_fileno(f) PerlSIO_fileno(f) #define PerlIO_clearerr(f) PerlSIO_clearerr(f) #define PerlIO_flush(f) PerlSIO_fflush(f) #if defined(VMS) && !defined(__DECC) /* Old VAXC RTL doesn't reset EOF on seek; Perl folk seem to expect this */ #define PerlIO_seek(f,o,w) (((f) && (*f) && ((*f)->_flag &= ~_IOEOF)),fseek(f,o,w)) #else # define PerlIO_seek(f,o,w) PerlSIO_fseek(f,o,w) #endif #define PerlIO_rewind(f) PerlSIO_rewind(f) #define PerlIO_tmpfile() PerlSIO_tmpfile() #define PerlIO_importFILE(f,fl) (f) #define PerlIO_exportFILE(f,fl) (f) #define PerlIO_findFILE(f) (f) #define PerlIO_releaseFILE(p,f) ((void) 0) #ifdef HAS_SETLINEBUF #define PerlIO_setlinebuf(f) PerlSIO_setlinebuf(f); #else #define PerlIO_setlinebuf(f) PerlSIO_setvbuf(f, NULL, _IOLBF, 0); #endif /* Now our interface to Configure's FILE_xxx macros */ #ifdef USE_STDIO_PTR #define PerlIO_has_cntptr(f) 1 #define PerlIO_get_ptr(f) PerlSIO_get_ptr(f) #define PerlIO_get_cnt(f) PerlSIO_get_cnt(f) #ifdef STDIO_CNT_LVALUE #define PerlIO_canset_cnt(f) 1 #define PerlIO_set_cnt(f,c) PerlSIO_set_cnt(f,c) #ifdef STDIO_PTR_LVALUE #ifdef STDIO_PTR_LVAL_NOCHANGE_CNT #define PerlIO_fast_gets(f) 1 #endif #endif /* STDIO_PTR_LVALUE */ #else /* STDIO_CNT_LVALUE */ #define PerlIO_canset_cnt(f) 0 #define PerlIO_set_cnt(f,c) abort() #endif #ifdef STDIO_PTR_LVALUE #ifdef STDIO_PTR_LVAL_NOCHANGE_CNT #define PerlIO_set_ptrcnt(f,p,c) STMT_START {PerlSIO_set_ptr(f,p), PerlIO_set_cnt(f,c);} STMT_END #else #ifdef STDIO_PTR_LVAL_SETS_CNT /* assert() may pre-process to ""; potential syntax error (FILE_ptr(), ) */ #define PerlIO_set_ptrcnt(f,p,c) STMT_START {PerlSIO_set_ptr(f,p); assert(PerlSIO_get_cnt(f) == (c));} STMT_END #define PerlIO_fast_gets(f) 1 #else #define PerlIO_set_ptrcnt(f,p,c) abort() #endif #endif #endif #else /* USE_STDIO_PTR */ #define PerlIO_has_cntptr(f) 0 #define PerlIO_canset_cnt(f) 0 #define PerlIO_get_cnt(f) (abort(),0) #define PerlIO_get_ptr(f) (abort(),(void *)0) #define PerlIO_set_cnt(f,c) abort() #define PerlIO_set_ptrcnt(f,p,c) abort() #endif /* USE_STDIO_PTR */ #ifndef PerlIO_fast_gets #define PerlIO_fast_gets(f) 0 #endif #ifdef FILE_base #define PerlIO_has_base(f) 1 #define PerlIO_get_base(f) PerlSIO_get_base(f) #define PerlIO_get_bufsiz(f) PerlSIO_get_bufsiz(f) #else #define PerlIO_has_base(f) 0 #define PerlIO_get_base(f) (abort(),(void *)0) #define PerlIO_get_bufsiz(f) (abort(),0) #endif #endif /* NETWARE */ #endif /* PERLIO_IS_STDIO */ /* * Local variables: * c-indentation-style: bsd * c-basic-offset: 4 * indent-tabs-mode: t * End: * * ex: set ts=8 sts=4 sw=4 noet: */