/* * Copyright (c) 1997-8 Graham Barr . All rights reserved. * This program is free software; you can redistribute it and/or * modify it under the same terms as Perl itself. */ #define PERL_EXT_IO #define PERL_NO_GET_CONTEXT #include "EXTERN.h" #define PERLIO_NOT_STDIO 1 #include "perl.h" #include "XSUB.h" #include "poll.h" #ifdef I_UNISTD # include #endif #if defined(I_FCNTL) || defined(HAS_FCNTL) # include #endif #ifndef SIOCATMARK # ifdef I_SYS_SOCKIO # include # endif #endif #ifdef PerlIO #if defined(MACOS_TRADITIONAL) && defined(USE_SFIO) #define PERLIO_IS_STDIO 1 #undef setbuf #undef setvbuf #define setvbuf _stdsetvbuf #define setbuf(f,b) ( __sf_setbuf(f,b) ) #endif typedef int SysRet; typedef PerlIO * InputStream; typedef PerlIO * OutputStream; #else #define PERLIO_IS_STDIO 1 typedef int SysRet; typedef FILE * InputStream; typedef FILE * OutputStream; #endif #define MY_start_subparse(fmt,flags) start_subparse(fmt,flags) #ifndef gv_stashpvn #define gv_stashpvn(str,len,flags) gv_stashpv(str,flags) #endif static int not_here(const char *s) __attribute__noreturn__; static int not_here(const char *s) ###### { ###### croak("%s not implemented on this architecture", s); NORETURN_FUNCTION_END; } #ifndef PerlIO #define PerlIO_fileno(f) fileno(f) #endif static int io_blocking(pTHX_ InputStream f, int block) 10 { #if defined(HAS_FCNTL) 10 int RETVAL; 10 if(!f) { ###### errno = EBADF; ###### return -1; } 10 RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0); 10 if (RETVAL >= 0) { 10 int mode = RETVAL; 10 int newmode = mode; #ifdef O_NONBLOCK /* POSIX style */ # ifndef O_NDELAY # define O_NDELAY O_NONBLOCK # endif /* Note: UNICOS and UNICOS/mk a F_GETFL returns an O_NDELAY * after a successful F_SETFL of an O_NONBLOCK. */ 10 RETVAL = RETVAL & (O_NONBLOCK | O_NDELAY) ? 0 : 1; 10 if (block == 0) { 4 newmode &= ~O_NDELAY; 4 newmode |= O_NONBLOCK; 6 } else if (block > 0) { 1 newmode &= ~(O_NDELAY|O_NONBLOCK); } #else /* Not POSIX - better have O_NDELAY or we can't cope. * for BSD-ish machines this is an acceptable alternative * for SysV we can't tell "would block" from EOF but that is * the way SysV is... */ RETVAL = RETVAL & O_NDELAY ? 0 : 1; if (block == 0) { newmode |= O_NDELAY; } else if (block > 0) { newmode &= ~O_NDELAY; } #endif 10 if (newmode != mode) { 5 const int ret = fcntl(PerlIO_fileno(f),F_SETFL,newmode); 5 if (ret < 0) ###### RETVAL = ret; } } 10 return RETVAL; #else return -1; #endif } MODULE = IO PACKAGE = IO::Seekable PREFIX = f void fgetpos(handle) InputStream handle CODE: 1 if (handle) { #ifdef PerlIO 1 ST(0) = sv_2mortal(newSV(0)); 1 if (PerlIO_getpos(handle, ST(0)) != 0) { ###### ST(0) = &PL_sv_undef; } #else if (fgetpos(handle, &pos)) { ST(0) = &PL_sv_undef; } else { ST(0) = sv_2mortal(newSVpv((char*)&pos, sizeof(Fpos_t))); } #endif } else { ###### ST(0) = &PL_sv_undef; ###### errno = EINVAL; } SysRet fsetpos(handle, pos) InputStream handle SV * pos CODE: 2 if (handle) { #ifdef PerlIO 2 RETVAL = PerlIO_setpos(handle, pos); #else char *p; STRLEN len; if ((p = SvPV(pos,len)) && len == sizeof(Fpos_t)) { RETVAL = fsetpos(handle, (Fpos_t*)p); } else { RETVAL = -1; errno = EINVAL; } #endif } else { ###### RETVAL = -1; ###### errno = EINVAL; } OUTPUT: RETVAL MODULE = IO PACKAGE = IO::File PREFIX = f void new_tmpfile(packname = "IO::File") const char * packname PREINIT: 16 OutputStream fp; 16 GV *gv; CODE: #ifdef PerlIO 16 fp = PerlIO_tmpfile(); #else fp = tmpfile(); #endif 16 gv = (GV*)SvREFCNT_inc(newGVgen(packname)); 16 hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD); 16 if (do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) { 16 ST(0) = sv_2mortal(newRV((SV*)gv)); 16 sv_bless(ST(0), gv_stashpv(packname, TRUE)); 16 SvREFCNT_dec(gv); /* undo increment in newRV() */ } else { ###### ST(0) = &PL_sv_undef; ###### SvREFCNT_dec(gv); } MODULE = IO PACKAGE = IO::Poll void _poll(timeout,...) int timeout; PPCODE: { #ifdef HAS_POLL 2 const int nfd = (items - 1) / 2; 2 SV *tmpsv = NEWSV(999,nfd * sizeof(struct pollfd)); 2 struct pollfd *fds = (struct pollfd *)SvPVX(tmpsv); 2 int i,j,ret; 4 for(i=1, j=0 ; j < nfd ; j++) { 2 fds[j].fd = SvIV(ST(i)); 2 i++; 2 fds[j].events = (short)SvIV(ST(i)); 2 i++; 2 fds[j].revents = 0; } 2 if((ret = poll(fds,nfd,timeout)) >= 0) { 4 for(i=1, j=0 ; j < nfd ; j++) { 2 sv_setiv(ST(i), fds[j].fd); i++; 2 sv_setiv(ST(i), fds[j].revents); i++; } } 2 SvREFCNT_dec(tmpsv); 2 XSRETURN_IV(ret); #else not_here("IO::Poll::poll"); #endif } MODULE = IO PACKAGE = IO::Handle PREFIX = io_ void io_blocking(handle,blk=-1) InputStream handle int blk PROTOTYPE: $;$ CODE: { 10 const int ret = io_blocking(aTHX_ handle, items == 1 ? -1 : blk ? 1 : 0); 10 if(ret >= 0) 10 XSRETURN_IV(ret); else ###### XSRETURN_UNDEF; } MODULE = IO PACKAGE = IO::Handle PREFIX = f int ungetc(handle, c) InputStream handle int c CODE: 2 if (handle) #ifdef PerlIO 2 RETVAL = PerlIO_ungetc(handle, c); #else RETVAL = ungetc(c, handle); #endif else { ###### RETVAL = -1; ###### errno = EINVAL; } OUTPUT: RETVAL int ferror(handle) InputStream handle CODE: ###### if (handle) #ifdef PerlIO ###### RETVAL = PerlIO_error(handle); #else RETVAL = ferror(handle); #endif else { ###### RETVAL = -1; ###### errno = EINVAL; } OUTPUT: RETVAL int clearerr(handle) InputStream handle CODE: ###### if (handle) { #ifdef PerlIO ###### PerlIO_clearerr(handle); #else clearerr(handle); #endif ###### RETVAL = 0; } else { ###### RETVAL = -1; ###### errno = EINVAL; } OUTPUT: RETVAL int untaint(handle) SV * handle CODE: #ifdef IOf_UNTAINT 1 IO * io; 1 io = sv_2io(handle); 1 if (io) { 1 IoFLAGS(io) |= IOf_UNTAINT; 1 RETVAL = 0; } else { #endif ###### RETVAL = -1; ###### errno = EINVAL; #ifdef IOf_UNTAINT } #endif OUTPUT: RETVAL SysRet fflush(handle) OutputStream handle CODE: 6 if (handle) #ifdef PerlIO 4 RETVAL = PerlIO_flush(handle); #else RETVAL = Fflush(handle); #endif else { 2 RETVAL = -1; 2 errno = EINVAL; } OUTPUT: RETVAL void setbuf(handle, ...) OutputStream handle CODE: ###### if (handle) #ifdef PERLIO_IS_STDIO { char *buf = items == 2 && SvPOK(ST(1)) ? sv_grow(ST(1), BUFSIZ) : 0; setbuf(handle, buf); } #else ###### not_here("IO::Handle::setbuf"); #endif SysRet setvbuf(...) CODE: ###### if (items != 4) ###### Perl_croak(aTHX_ "Usage: IO::Handle::setvbuf(handle, buf, type, size)"); #if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF) { OutputStream handle = 0; char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0; int type; int size; if (items == 4) { handle = IoOFP(sv_2io(ST(0))); buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0; type = (int)SvIV(ST(2)); size = (int)SvIV(ST(3)); } if (!handle) /* Try input stream. */ handle = IoIFP(sv_2io(ST(0))); if (items == 4 && handle) RETVAL = setvbuf(handle, buf, type, size); else { RETVAL = -1; errno = EINVAL; } } #else ###### RETVAL = (SysRet) not_here("IO::Handle::setvbuf"); #endif OUTPUT: RETVAL SysRet fsync(handle) OutputStream handle CODE: #ifdef HAS_FSYNC ###### if(handle) ###### RETVAL = fsync(PerlIO_fileno(handle)); else { ###### RETVAL = -1; ###### errno = EINVAL; } #else RETVAL = (SysRet) not_here("IO::Handle::sync"); #endif OUTPUT: RETVAL MODULE = IO PACKAGE = IO::Socket SysRet sockatmark (sock) InputStream sock PROTOTYPE: $ PREINIT: ###### int fd; CODE: { ###### fd = PerlIO_fileno(sock); #ifdef HAS_SOCKATMARK ###### RETVAL = sockatmark(fd); #else { int flag = 0; # ifdef SIOCATMARK # if defined(NETWARE) || defined(WIN32) if (ioctl(fd, SIOCATMARK, (void*)&flag) != 0) # else if (ioctl(fd, SIOCATMARK, &flag) != 0) # endif XSRETURN_UNDEF; # else not_here("IO::Socket::atmark"); # endif RETVAL = flag; } #endif } OUTPUT: RETVAL BOOT: { 99 HV *stash; /* * constant subs for IO::Poll */ 99 stash = gv_stashpvn("IO::Poll", 8, TRUE); #ifdef POLLIN 99 newCONSTSUB(stash,"POLLIN",newSViv(POLLIN)); #endif #ifdef POLLPRI 99 newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI)); #endif #ifdef POLLOUT 99 newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT)); #endif #ifdef POLLRDNORM 99 newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM)); #endif #ifdef POLLWRNORM 99 newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM)); #endif #ifdef POLLRDBAND 99 newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND)); #endif #ifdef POLLWRBAND 99 newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND)); #endif #ifdef POLLNORM newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM)); #endif #ifdef POLLERR 99 newCONSTSUB(stash,"POLLERR", newSViv(POLLERR)); #endif #ifdef POLLHUP 99 newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP)); #endif #ifdef POLLNVAL 99 newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL)); #endif /* * constant subs for IO::Handle */ 99 stash = gv_stashpvn("IO::Handle", 10, TRUE); #ifdef _IOFBF 99 newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF)); #endif #ifdef _IOLBF 99 newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF)); #endif #ifdef _IONBF 99 newCONSTSUB(stash,"_IONBF", newSViv(_IONBF)); #endif #ifdef SEEK_SET 99 newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET)); #endif #ifdef SEEK_CUR 99 newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR)); #endif #ifdef SEEK_END 99 newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END)); #endif }