bool QFile::at( Offset pos ) { if ( !isOpen() ) { #if defined(QT_CHECK_STATE) qWarning( "QFile::at: File is not open" ); #endif return FALSE; } if ( isSequentialAccess() ) return FALSE; bool ok; if ( isRaw() ) { off_t l = ::lseek( fd, pos, SEEK_SET ); ok = ( l != -1 ); pos = (Offset)l; } else { // buffered file #if defined(QT_LARGEFILE_SUPPORT) ok = ( ::fseeko(fh, pos, SEEK_SET) == 0 ); #else ok = ( ::fseek(fh, pos, SEEK_SET) == 0 ); #endif } if ( ok ) #if defined(QT_LARGEFILE_SUPPORT) && !defined(QT_ABI_QT4) ioIndex = pos > UINT_MAX ? UINT_MAX : (Offset)pos; #else ioIndex = (Offset)pos; #endif #if defined(QT_CHECK_RANGE) else
JointState::MODE JointState::getMode() const { if (isPosition()) return POSITION; else if (isSpeed()) return SPEED; else if (isEffort()) return EFFORT; else if (isRaw()) return RAW; else if (isAcceleration()) return ACCELERATION; else if (hasPosition() || hasSpeed() || hasEffort() || hasRaw() || hasAcceleration()) throw std::runtime_error("getMode() called on a JointState that has more than one field set"); else return UNSET; }
int QFile::writeBlock( const char *p, uint len ) { #if defined(CHECK_NULL) if ( p == 0 && len != 0 ) warning( "QFile::writeBlock: Null pointer error" ); #endif #if defined(CHECK_STATE) if ( !isOpen() ) { // file not open warning( "QFile::writeBlock: File not open" ); return -1; } if ( !isWritable() ) { // writing not permitted warning( "QFile::writeBlock: Write operation not permitted" ); return -1; } #endif int nwritten; // number of bytes written if ( isRaw() ) // raw file nwritten = WRITE( fd, p, len ); else // buffered file nwritten = fwrite( p, 1, len, fh ); if ( nwritten != (int)len ) { // write error if ( errno == ENOSPC ) // disk is full setStatus( IO_ResourceError ); else setStatus( IO_WriteError ); if ( isRaw() ) // recalc file position index = (int)LSEEK( fd, 0, SEEK_CUR ); else index = fseek( fh, 0, SEEK_CUR ); } else { index += nwritten; } if ( index > length ) // update file length length = index; return nwritten; }
int QFile::readBlock( char *p, uint len ) { #if defined(CHECK_NULL) if ( !p ) qWarning( "QFile::readBlock: Null pointer error" ); #endif #if defined(CHECK_STATE) if ( !isOpen() ) { // file not open qWarning( "QFile::readBlock: File not open" ); return -1; } if ( !isReadable() ) { // reading not permitted qWarning( "QFile::readBlock: Read operation not permitted" ); return -1; } #endif int nread = 0; // number of bytes read if ( !ungetchBuffer.isEmpty() ) { // need to add these to the returned string. int l = ungetchBuffer.length(); while( nread < l ) { *p = ungetchBuffer[ l - nread - 1 ]; p++; nread++; } ungetchBuffer.truncate( l - nread ); } if ( nread < (int)len ) { if ( isRaw() ) { // raw file nread += READ( fd, p, len-nread ); if ( len && nread <= 0 ) { nread = 0; setStatus(IO_ReadError); } } else { // buffered file nread += fread( p, 1, len-nread, fh ); if ( (uint)nread != len ) { if ( ferror( fh ) || nread==0 ) setStatus(IO_ReadError); } } } ioIndex += nread; return nread; }
/** * Construct String Container from R object * @param rstr R object * * if you want nrecycle > n, call set_nrecycle */ StriContainerListRaw::StriContainerListRaw(SEXP rstr) { this->data = NULL; if (isNull(rstr)) { this->init_Base(1, 1, true); this->data = new String8[this->n]; // 1 string, NA if (!this->data) throw StriException(MSG__MEM_ALLOC_ERROR); } else if (isRaw(rstr)) { this->init_Base(1, 1, true); this->data = new String8[this->n]; if (!this->data) throw StriException(MSG__MEM_ALLOC_ERROR); this->data[0].initialize((const char*)RAW(rstr), LENGTH(rstr), false/*memalloc*/, false/*killbom*/, false/*isASCII*/); // shallow copy } else if (Rf_isVectorList(rstr)) { R_len_t nv = LENGTH(rstr); this->init_Base(nv, nv, true); this->data = new String8[this->n]; if (!this->data) throw StriException(MSG__MEM_ALLOC_ERROR); for (R_len_t i=0; i<this->n; ++i) { SEXP cur = VECTOR_ELT(rstr, i); if (!isNull(cur)) this->data[i].initialize((const char*)RAW(cur), LENGTH(cur), false/*memalloc*/, false/*killbom*/, false/*isASCII*/); // shallow copy // else leave as-is, i.e. NA } } else { // it's surely a character vector (args have been checked) R_len_t nv = LENGTH(rstr); this->init_Base(nv, nv, true); this->data = new String8[this->n]; if (!this->data) throw StriException(MSG__MEM_ALLOC_ERROR); for (R_len_t i=0; i<this->n; ++i) { SEXP cur = STRING_ELT(rstr, i); if (cur != NA_STRING) this->data[i].initialize(CHAR(cur), LENGTH(cur), false/*memalloc*/, false/*killbom*/, false/*isASCII*/); // shallow copy // else leave as-is, i.e. NA } } }
/** * Construct String Container from R character vector * @param rstr R character vector * * if you want nrecycle > n, call set_nrecycle */ StriContainerListRaw::StriContainerListRaw(SEXP rstr) { this->data = NULL; if (isNull(rstr)) { this->init_Base(1, 1, true); this->data = new String8*[this->n]; this->data[0] = NULL; } else if (isRaw(rstr)) { this->init_Base(1, 1, true); this->data = new String8*[this->n]; this->data[0] = new String8((const char*)RAW(rstr), LENGTH(rstr), false); // shallow copy } else if (Rf_isVectorList(rstr)) { R_len_t nv = LENGTH(rstr); this->init_Base(nv, nv, true); this->data = new String8*[this->n]; for (R_len_t i=0; i<this->n; ++i) { SEXP cur = VECTOR_ELT(rstr, i); if (isNull(cur)) this->data[i] = NULL; else this->data[i] = new String8((const char*)RAW(cur), LENGTH(cur), false); // shallow copy } } else { R_len_t nv = LENGTH(rstr); this->init_Base(nv, nv, true); this->data = new String8*[this->n]; for (R_len_t i=0; i<this->n; ++i) { SEXP cur = STRING_ELT(rstr, i); if (cur == NA_STRING) this->data[i] = NULL; else this->data[i] = new String8(CHAR(cur), LENGTH(cur), false); // shallow copy } } }
bool QFile::at( int pos ) { if ( !isOpen() ) { #if defined(CHECK_STATE) warning( "QFile::at: File is not open" ); #endif return FALSE; } bool ok; if ( isRaw() ) { // raw file pos = (int)LSEEK(fd, pos, SEEK_SET); ok = pos != -1; } else { // buffered file ok = fseek(fh, pos, SEEK_SET) == 0; } if ( ok ) index = pos; #if defined(CHECK_RANGE) else warning( "QFile::at: Cannot set file position %d", pos ); #endif return ok; }
int QFile::getch() { #if defined(CHECK_STATE) if ( !isOpen() ) { // file not open warning( "QFile::getch: File not open" ); return EOF; } if ( !isReadable() ) { // reading not permitted warning( "QFile::getch: Read operation not permitted" ); return EOF; } #endif int ch; if ( isRaw() ) { // raw file (inefficient) char buf[1]; ch = readBlock( buf, 1 ) == 1 ? buf[0] : EOF; } else { // buffered file if ( (ch = getc( fh )) != EOF ) index++; else setStatus(IO_ReadError); } return ch; }
void Mind::run() { int i, raw; activityMonitor monitor; struct epoll_event *e = NULL; std::string buf; ircEvent event; User user; std::string tmp; moduleMap::const_iterator it; _irc = new irc(); if (!_irc->connect(_conf.get("server"), atoi(_conf.get("port").c_str()))) throw Exception("Cannot connect to server... aborting"); _irc->setNick(_conf.get("nick")); _irc->setIdent(_conf.get("ident")); _irc->setRealname(_conf.get("realname")); if ((tmp = _conf.get("oper")) == "true") { _irc->setOper(true); _irc->setOperNick(_conf.get("operUsername")); _irc->setOperPass(_conf.get("operPassword")); } _irc->auth(); if (_conf.exists("auth")) _irc->setNsPass(_conf.get("auth")); _irc->identify(); if (_irc->isOper()) _irc->oper(); if (_conf.exists("autojoin")) { tmp = _conf.get("autojoin"); _irc->join(tmp); } monitor.setFd(_irc->getSock()->getFd()); monitor.setEvents(EPOLLIN | EPOLLERR | EPOLLHUP); if (!monitor.init()) { *_logger << "Unable to init the activity monitor"; return; } while (_run) if (monitor.checkActivity()) { if (!(e = monitor.getActivity())) { _irc->end(); return; } for (i = 0; i < monitor.getNb(); ++i) { if (e[i].events & EPOLLHUP || e[i].events & EPOLLERR) { _irc->end(); return; } if (e[i].events & EPOLLIN) { _irc->run(); buf = _irc->getBuf(); event = _irc->getEvent(); try { user = irc::makeUser(buf); } catch (Exception &e) { event = UNKNOWN; } if (isAdmin(user.getNick())) execAdmin(event, buf); if (isRaw(buf)) // the message is not an 'IRC event' { raw = atoi(Utils::getToken(buf, " ", 2).c_str()); /* broadcast to every module */ for (it = _mod.begin(); raw != -1 && it != _mod.end(); ++it) if (it->second->isEventable()) it->second->onRaw(raw, buf); } /* broadcast irc event to every module */ for (it = _mod.begin(); event != UNKNOWN && it != _mod.end(); ++it) if (it->second->isEventable()) it->second->execEvent(event, user, buf); event = UNKNOWN; } } } _irc->end(); *_logger << "Connection closed."; return; }
bool QFile::open( int m ) { if ( isOpen() ) { // file already open #if defined(CHECK_STATE) warning( "QFile::open: File already open" ); #endif return FALSE; } if ( fn.isNull() ) { // no file name defined #if defined(CHECK_NULL) warning( "QFile::open: No file name specified" ); #endif return FALSE; } init(); // reset params setMode( m ); if ( !(isReadable() || isWritable()) ) { #if defined(CHECK_RANGE) warning( "QFile::open: File access not specified" ); #endif return FALSE; } bool ok = TRUE; if ( isRaw() ) { // raw file I/O int oflags = OPEN_RDONLY; if ( isReadable() && isWritable() ) oflags = OPEN_RDWR; else if ( isWritable() ) oflags = OPEN_WRONLY; if ( flags() & IO_Append ) { // append to end of file? if ( flags() & IO_Truncate ) oflags |= (OPEN_CREAT | OPEN_TRUNC); else oflags |= (OPEN_APPEND | OPEN_CREAT); setFlags( flags() | IO_WriteOnly ); // append implies write } else if ( isWritable() ) { // create/trunc if writable if ( flags() & IO_Truncate ) oflags |= (OPEN_CREAT | OPEN_TRUNC); else oflags |= OPEN_CREAT; } #if defined(HAS_TEXT_FILEMODE) && !defined(_OS_MAC_) if ( isTranslated() ) oflags |= OPEN_TEXT; else oflags |= OPEN_BINARY; #endif #if defined(HAS_ASYNC_FILEMODE) if ( isAsynchronous() ) oflags |= OPEN_ASYNC; #endif fd = OPEN( (const char *)fn, oflags, 0666 ); if ( fd != -1 ) { // open successful STATBUF st; FSTAT( fd, &st ); length = (int)st.st_size; index = (flags() & IO_Append) == 0 ? 0 : length; } else { ok = FALSE; } } else { // buffered file I/O const char *perm = 0; char perm2[4]; bool try_create = FALSE; if ( flags() & IO_Append ) { // append to end of file? setFlags( flags() | IO_WriteOnly ); // append implies write perm = isReadable() ? "a+" : "a"; } else { if ( isReadWrite() ) { if ( flags() & IO_Truncate ) { perm = "w+"; } else { perm = "r+"; try_create = TRUE; // try to create if not exists } } else if ( isReadable() ) { perm = "r"; } else if ( isWritable() ) { perm = "w"; } } strcpy( perm2, perm ); #if defined(HAS_TEXT_FILEMODE) if ( isTranslated() ) strcat( perm2, "t" ); else strcat( perm2, "b" ); #endif fh = fopen( (const char *)fn, perm2 ); if ( !fh && try_create ) { perm2[0] = 'w'; // try "w+" instead of "r+" fh = fopen( (const char *)fn, perm2 ); } if ( fh ) { STATBUF st; FSTAT( FILENO(fh), &st ); length = (int)st.st_size; index = (flags() & IO_Append) == 0 ? 0 : length; } else { ok = FALSE; } } if ( ok ) { setState( IO_Open ); } else { init(); if ( errno == EMFILE ) // no more file handles/descrs setStatus( IO_ResourceError ); else setStatus( IO_OpenError ); } return ok; }
bool QFile::open( int m ) { if ( isOpen() ) { // file already open #if defined(QT_CHECK_STATE) qWarning( "QFile::open: File already open" ); #endif return FALSE; } if ( fn.isEmpty() ) { // no file name defined #if defined(QT_CHECK_NULL) qWarning( "QFile::open: No file name specified" ); #endif return FALSE; } init(); // reset params setMode( m ); if ( !(isReadable() || isWritable()) ) { #if defined(QT_CHECK_RANGE) qWarning( "QFile::open: File access not specified" ); #endif return FALSE; } bool ok = TRUE; struct stat st; if ( isRaw() ) { int oflags = O_RDONLY; if ( isReadable() && isWritable() ) oflags = O_RDWR; else if ( isWritable() ) oflags = O_WRONLY; if ( flags() & IO_Append ) { // append to end of file? if ( flags() & IO_Truncate ) oflags |= (O_CREAT | O_TRUNC); else oflags |= (O_APPEND | O_CREAT); setFlags( flags() | IO_WriteOnly ); // append implies write } else if ( isWritable() ) { // create/trunc if writable if ( flags() & IO_Truncate ) oflags |= (O_CREAT | O_TRUNC); else oflags |= O_CREAT; } #if defined(HAS_TEXT_FILEMODE) if ( isTranslated() ) oflags |= OPEN_TEXT; else oflags |= OPEN_BINARY; #endif #if defined(HAS_ASYNC_FILEMODE) if ( isAsynchronous() ) oflags |= OPEN_ASYNC; #endif fd = qt_open( QFile::encodeName(fn), oflags, 0666 ); if ( fd != -1 ) { // open successful ::fstat( fd, &st ); // get the stat for later usage } else { ok = FALSE; } } else { // buffered file I/O QCString perm; char perm2[4]; bool try_create = FALSE; if ( flags() & IO_Append ) { // append to end of file? setFlags( flags() | IO_WriteOnly ); // append implies write perm = isReadable() ? "a+" : "a"; } else { if ( isReadWrite() ) { if ( flags() & IO_Truncate ) { perm = "w+"; } else { perm = "r+"; try_create = TRUE; // try to create if not exists } } else if ( isReadable() ) { perm = "r"; } else if ( isWritable() ) { perm = "w"; } } qstrcpy( perm2, perm ); #if defined(HAS_TEXT_FILEMODE) if ( isTranslated() ) strcat( perm2, "t" ); else strcat( perm2, "b" ); #endif for (;;) { // At most twice fh = fopen( QFile::encodeName(fn), perm2 ); if ( !fh && try_create ) { perm2[0] = 'w'; // try "w+" instead of "r+" try_create = FALSE; } else { break; } } if ( fh ) { ::fstat( fileno(fh), &st ); // get the stat for later usage } else { ok = FALSE; } } if ( ok ) { setState( IO_Open ); // on successful open the file stat was got; now test what type // of file we have if ( (st.st_mode & S_IFMT) != S_IFREG ) { // non-seekable setType( IO_Sequential ); length = INT_MAX; ioIndex = 0; } else { #if defined(QT_LARGEFILE_SUPPORT) && !defined(QT_ABI_QT4) length = st.st_size > UINT_MAX ? UINT_MAX : (Offset)st.st_size; #else length = (Offset)st.st_size; #endif ioIndex = (flags() & IO_Append) == 0 ? 0 : length; if ( !(flags()&IO_Truncate) && length == 0 && isReadable() ) { // try if you can read from it (if you can, it's a sequential // device; e.g. a file in the /proc filesystem) int c = getch(); if ( c != -1 ) { ungetch(c); setType( IO_Sequential ); length = INT_MAX; ioIndex = 0; } resetStatus(); } } } else { init(); if ( errno == EMFILE ) // no more file handles/descrs setStatus( IO_ResourceError ); else setStatus( IO_OpenError ); setErrorStringErrno( errno ); } return ok; }
static SEXP lbinary(SEXP call, SEXP op, SEXP args) { /* logical binary : "&" or "|" */ SEXP x, y, dims, tsp, klass, xnames, ynames; R_xlen_t mismatch, nx, ny; int xarray, yarray, xts, yts; mismatch = 0; x = CAR(args); y = CADR(args); if (isRaw(x) && isRaw(y)) { } else if (!isNumber(x) || !isNumber(y)) errorcall(call, _("operations are possible only for numeric, logical or complex types")); tsp = R_NilValue; /* -Wall */ klass = R_NilValue; /* -Wall */ xarray = isArray(x); yarray = isArray(y); xts = isTs(x); yts = isTs(y); if (xarray || yarray) { if (xarray && yarray) { if (!conformable(x, y)) error(_("binary operation on non-conformable arrays")); PROTECT(dims = getAttrib(x, R_DimSymbol)); } else if (xarray) { PROTECT(dims = getAttrib(x, R_DimSymbol)); } else /*(yarray)*/ { PROTECT(dims = getAttrib(y, R_DimSymbol)); } PROTECT(xnames = getAttrib(x, R_DimNamesSymbol)); PROTECT(ynames = getAttrib(y, R_DimNamesSymbol)); } else { PROTECT(dims = R_NilValue); PROTECT(xnames = getAttrib(x, R_NamesSymbol)); PROTECT(ynames = getAttrib(y, R_NamesSymbol)); } nx = XLENGTH(x); ny = XLENGTH(y); if(nx > 0 && ny > 0) { if(nx > ny) mismatch = nx % ny; else mismatch = ny % nx; } if (xts || yts) { if (xts && yts) { if (!tsConform(x, y)) errorcall(call, _("non-conformable time series")); PROTECT(tsp = getAttrib(x, R_TspSymbol)); PROTECT(klass = getAttrib(x, R_ClassSymbol)); } else if (xts) { if (XLENGTH(x) < XLENGTH(y)) ErrorMessage(call, ERROR_TSVEC_MISMATCH); PROTECT(tsp = getAttrib(x, R_TspSymbol)); PROTECT(klass = getAttrib(x, R_ClassSymbol)); } else /*(yts)*/ { if (XLENGTH(y) < XLENGTH(x)) ErrorMessage(call, ERROR_TSVEC_MISMATCH); PROTECT(tsp = getAttrib(y, R_TspSymbol)); PROTECT(klass = getAttrib(y, R_ClassSymbol)); } } if(mismatch) warningcall(call, _("longer object length is not a multiple of shorter object length")); if (isRaw(x) && isRaw(y)) { PROTECT(x = binaryLogic2(PRIMVAL(op), x, y)); } else { if (!isNumber(x) || !isNumber(y)) errorcall(call, _("operations are possible only for numeric, logical or complex types")); x = SETCAR(args, coerceVector(x, LGLSXP)); y = SETCADR(args, coerceVector(y, LGLSXP)); PROTECT(x = binaryLogic(PRIMVAL(op), x, y)); } if (dims != R_NilValue) { setAttrib(x, R_DimSymbol, dims); if(xnames != R_NilValue) setAttrib(x, R_DimNamesSymbol, xnames); else if(ynames != R_NilValue) setAttrib(x, R_DimNamesSymbol, ynames); } else { if(XLENGTH(x) == XLENGTH(xnames)) setAttrib(x, R_NamesSymbol, xnames); else if(XLENGTH(x) == XLENGTH(ynames)) setAttrib(x, R_NamesSymbol, ynames); } if (xts || yts) { setAttrib(x, R_TspSymbol, tsp); setAttrib(x, R_ClassSymbol, klass); UNPROTECT(2); } UNPROTECT(4); return x; }
static SEXP lunary(SEXP call, SEXP op, SEXP arg) { SEXP x, dim, dimnames, names; R_xlen_t i, len; len = XLENGTH(arg); if (!isLogical(arg) && !isNumber(arg) && !isRaw(arg)) { /* For back-compatibility */ if (!len) return allocVector(LGLSXP, 0); errorcall(call, _("invalid argument type")); } if (isLogical(arg) || isRaw(arg)) x = PROTECT(duplicate(arg)); // copy all attributes in this case else { x = PROTECT(allocVector(isRaw(arg) ? RAWSXP : LGLSXP, len)); PROTECT(names = getAttrib(arg, R_NamesSymbol)); PROTECT(dim = getAttrib(arg, R_DimSymbol)); PROTECT(dimnames = getAttrib(arg, R_DimNamesSymbol)); if(names != R_NilValue) setAttrib(x, R_NamesSymbol, names); if(dim != R_NilValue) setAttrib(x, R_DimSymbol, dim); if(dimnames != R_NilValue) setAttrib(x, R_DimNamesSymbol, dimnames); UNPROTECT(3); } switch(TYPEOF(arg)) { case LGLSXP: for (i = 0; i < len; i++) { // if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt(); LOGICAL(x)[i] = (LOGICAL(arg)[i] == NA_LOGICAL) ? NA_LOGICAL : LOGICAL(arg)[i] == 0; } break; case INTSXP: for (i = 0; i < len; i++) { // if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt(); LOGICAL(x)[i] = (INTEGER(arg)[i] == NA_INTEGER) ? NA_LOGICAL : INTEGER(arg)[i] == 0; } break; case REALSXP: for (i = 0; i < len; i++){ // if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt(); LOGICAL(x)[i] = ISNAN(REAL(arg)[i]) ? NA_LOGICAL : REAL(arg)[i] == 0; } break; case CPLXSXP: for (i = 0; i < len; i++) { // if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt(); LOGICAL(x)[i] = (ISNAN(COMPLEX(arg)[i].r) || ISNAN(COMPLEX(arg)[i].i)) ? NA_LOGICAL : (COMPLEX(arg)[i].r == 0. && COMPLEX(arg)[i].i == 0.); } break; case RAWSXP: for (i = 0; i < len; i++) { // if ((i+1) % NINTERRUPT == 0) R_CheckUserInterrupt(); RAW(x)[i] = 0xFF ^ RAW(arg)[i]; } break; default: UNIMPLEMENTED_TYPE("lunary", arg); } UNPROTECT(1); return x; }
static SEXP lbinary(SEXP call, SEXP op, SEXP args) { /* logical binary : "&" or "|" */ SEXP x = CAR(args), y = CADR(args); if (isRaw(x) && isRaw(y)) { } else if ( !(isNull(x) || isNumber(x)) || !(isNull(y) || isNumber(y)) ) errorcall(call, _("operations are possible only for numeric, logical or complex types")); R_xlen_t nx = xlength(x), ny = xlength(y); Rboolean xarray = isArray(x), yarray = isArray(y), xts = isTs(x), yts = isTs(y); SEXP dims, xnames, ynames; if (xarray || yarray) { if (xarray && yarray) { if (!conformable(x, y)) errorcall(call, _("non-conformable arrays")); PROTECT(dims = getAttrib(x, R_DimSymbol)); } else if (xarray && (ny != 0 || nx == 0)) { PROTECT(dims = getAttrib(x, R_DimSymbol)); } else if (yarray && (nx != 0 || ny == 0)) { PROTECT(dims = getAttrib(y, R_DimSymbol)); } else PROTECT(dims = R_NilValue); PROTECT(xnames = getAttrib(x, R_DimNamesSymbol)); PROTECT(ynames = getAttrib(y, R_DimNamesSymbol)); } else { PROTECT(dims = R_NilValue); PROTECT(xnames = getAttrib(x, R_NamesSymbol)); PROTECT(ynames = getAttrib(y, R_NamesSymbol)); } SEXP klass = NULL, tsp = NULL; // -Wall if (xts || yts) { if (xts && yts) { if (!tsConform(x, y)) errorcall(call, _("non-conformable time series")); PROTECT(tsp = getAttrib(x, R_TspSymbol)); PROTECT(klass = getAttrib(x, R_ClassSymbol)); } else if (xts) { if (nx < ny) ErrorMessage(call, ERROR_TSVEC_MISMATCH); PROTECT(tsp = getAttrib(x, R_TspSymbol)); PROTECT(klass = getAttrib(x, R_ClassSymbol)); } else /*(yts)*/ { if (ny < nx) ErrorMessage(call, ERROR_TSVEC_MISMATCH); PROTECT(tsp = getAttrib(y, R_TspSymbol)); PROTECT(klass = getAttrib(y, R_ClassSymbol)); } } if (nx > 0 && ny > 0) { if(((nx > ny) ? nx % ny : ny % nx) != 0) // mismatch warningcall(call, _("longer object length is not a multiple of shorter object length")); if (isRaw(x) && isRaw(y)) { x = binaryLogic2(PRIMVAL(op), x, y); } else { if(isNull(x)) x = SETCAR(args, allocVector(LGLSXP, 0)); else // isNumeric(x) x = SETCAR(args, coerceVector(x, LGLSXP)); if(isNull(y)) y = SETCAR(args, allocVector(LGLSXP, 0)); else // isNumeric(y) y = SETCADR(args, coerceVector(y, LGLSXP)); x = binaryLogic(PRIMVAL(op), x, y); } } else { // nx == 0 || ny == 0 x = allocVector(LGLSXP, 0); } PROTECT(x); if (dims != R_NilValue) { setAttrib(x, R_DimSymbol, dims); if(xnames != R_NilValue) setAttrib(x, R_DimNamesSymbol, xnames); else if(ynames != R_NilValue) setAttrib(x, R_DimNamesSymbol, ynames); } else { if(xnames != R_NilValue && XLENGTH(x) == XLENGTH(xnames)) setAttrib(x, R_NamesSymbol, xnames); else if(ynames != R_NilValue && XLENGTH(x) == XLENGTH(ynames)) setAttrib(x, R_NamesSymbol, ynames); } if (xts || yts) { setAttrib(x, R_TspSymbol, tsp); setAttrib(x, R_ClassSymbol, klass); UNPROTECT(2); } UNPROTECT(4); return x; }
uint QFile::size() const { STATBUF st; if ( isOpen() ) { FSTAT( fh ? FILENO(fh) : fd, &st ); return st.st_size; } else { #if defined(__CYGWIN32_) STAT( QFile::encodeName(fn), &st ); #else QString str = fn; reslashify(str); #ifdef QT_LARGEFILE_SUPPORT if ( _wstati64( (wchar_t*) str.ucs2(), &st ) != -1 ) { #else if ( _wstat( (wchar_t*) str.ucs2(), &st ) != -1 ) { #endif #endif return st.st_size; } } return 0; } /*! \fn int QFile::at() const Returns the file index. \sa size() */ /*! Sets the file index to \e pos. Returns TRUE if successful, otherwise FALSE. Example: \code QFile f( "data.bin" ); f.open( IO_ReadOnly ); // index set to 0 f.at( 100 ); // set index to 100 f.at( f.at()+50 ); // set index to 150 f.at( f.size()-80 ); // set index to 80 before EOF f.close(); \endcode \warning The result is undefined if the file was \link open() opened\endlink using the \c IO_Append specifier. \sa size(), open() */ bool QFile::at( int pos ) { if ( !isOpen() ) { #if defined(CHECK_STATE) qWarning( "QFile::at: File is not open" ); #endif return FALSE; } bool ok; if ( isRaw() ) { // raw file pos = (int)LSEEK(fd, pos, SEEK_SET); ok = pos != -1; } else { // buffered file ok = fseek(fh, pos, SEEK_SET) == 0; } if ( ok ) ioIndex = pos; #if defined(CHECK_RANGE) else qWarning( "QFile::at: Cannot set file position %d", pos ); #endif return ok; } /*! Reads at most \e len bytes from the file into \e p and returns the number of bytes actually read. Returns -1 if a serious error occurred. \warning We have experienced problems with some C libraries when a buffered file is opened for both reading and writing. If a read operation takes place immediately after a write operation, the read buffer contains garbage data. Worse, the same garbage is written to the file. Calling flush() before readBlock() solved this problem. \sa writeBlock() */ int QFile::readBlock( char *p, uint len ) { #if defined(CHECK_NULL) if ( !p ) qWarning( "QFile::readBlock: Null pointer error" ); #endif #if defined(CHECK_STATE) if ( !isOpen() ) { // file not open qWarning( "QFile::readBlock: File not open" ); return -1; } if ( !isReadable() ) { // reading not permitted qWarning( "QFile::readBlock: Read operation not permitted" ); return -1; } #endif int nread; // number of bytes read if ( isRaw() ) { // raw file nread = READ( fd, p, len ); if ( len && nread <= 0 ) { nread = 0; setStatus(IO_ReadError); } } else { // buffered file nread = (int)fread( p, 1, len, fh ); if ( (uint)nread != len ) { if ( ferror( fh ) || nread==0 ) setStatus(IO_ReadError); } } ioIndex += nread; return nread; } /*! \overload int writeBlock( const QByteArray& data ) */ /*! \reimp Writes \e len bytes from \e p to the file and returns the number of bytes actually written. Returns -1 if a serious error occurred. \warning When working with buffered files, data may not be written to the file at once. Call flush() to make sure the data is really written. \sa readBlock() */ int QFile::writeBlock( const char *p, uint len ) { #if defined(CHECK_NULL) if ( p == 0 && len != 0 ) qWarning( "QFile::writeBlock: Null pointer error" ); #endif #if defined(CHECK_STATE) if ( !isOpen() ) { // file not open qWarning( "QFile::writeBlock: File not open" ); return -1; } if ( !isWritable() ) { // writing not permitted qWarning( "QFile::writeBlock: Write operation not permitted" ); return -1; } #endif int nwritten; // number of bytes written if ( isRaw() ) // raw file nwritten = WRITE( fd, p, len ); else // buffered file nwritten = (int)fwrite( p, 1, len, fh ); if ( nwritten != (int)len ) { // write error if ( errno == ENOSPC ) // disk is full setStatus( IO_ResourceError ); else setStatus( IO_WriteError ); if ( isRaw() ) // recalc file position ioIndex = (int)LSEEK( fd, 0, SEEK_CUR ); else ioIndex = fseek( fh, 0, SEEK_CUR ); } else { ioIndex += nwritten; } if ( ioIndex > length ) // update file length length = ioIndex; return nwritten; } /*! Returns the file handle of the file. This is a small positive integer, suitable for use with C library functions such as fdopen() and fcntl(), as well as with QSocketNotifier. If the file is not open or there is an error, handle() returns -1. \sa QSocketNotifier */ int QFile::handle() const { if ( !isOpen() ) return -1; else if ( fh ) return FILENO( fh ); else return fd; } /*! Closes an open file. The file is not closed if it was opened with an existing file handle. If the existing file handle is a \c FILE*, the file is flushed. If the existing file handle is an \c int file descriptor, nothing is done to the file. Some "write-behind" filesystems may report an unspecified error on closing the file. These errors only indicate that something may have gone wrong since the previous open(). In such a case status() reports IO_UnspecifiedError after close(), otherwise IO_Ok. \sa open(), flush() */ void QFile::close() { bool ok = FALSE; if ( isOpen() ) { // file is not open if ( fh ) { // buffered file if ( ext_f ) ok = fflush( fh ) != -1; // flush instead of closing else ok = fclose( fh ) != -1; } else { // raw file if ( ext_f ) ok = TRUE; // cannot close else ok = CLOSE( fd ) != -1; } init(); // restore internal state } if (!ok) setStatus (IO_UnspecifiedError); return; }
bool QFile::open( int m ) { if ( isOpen() ) { // file already open #if defined(CHECK_STATE) qWarning( "QFile::open: File already open" ); #endif return FALSE; } if ( fn.isNull() ) { // no file name defined #if defined(CHECK_NULL) qWarning( "QFile::open: No file name specified" ); #endif return FALSE; } init(); // reset params setMode( m ); if ( !(isReadable() || isWritable()) ) { #if defined(CHECK_RANGE) qWarning( "QFile::open: File access not specified" ); #endif return FALSE; } bool ok = TRUE; STATBUF st; if ( isRaw() ) { // raw file I/O int oflags = OPEN_RDONLY; if ( isReadable() && isWritable() ) oflags = OPEN_RDWR; else if ( isWritable() ) oflags = OPEN_WRONLY; if ( flags() & IO_Append ) { // append to end of file? if ( flags() & IO_Truncate ) oflags |= (OPEN_CREAT | OPEN_TRUNC); else oflags |= (OPEN_APPEND | OPEN_CREAT); setFlags( flags() | IO_WriteOnly ); // append implies write } else if ( isWritable() ) { // create/trunc if writable if ( flags() & IO_Truncate ) oflags |= (OPEN_CREAT | OPEN_TRUNC); else oflags |= OPEN_CREAT; } #if defined(HAS_TEXT_FILEMODE) if ( isTranslated() ) oflags |= OPEN_TEXT; else oflags |= OPEN_BINARY; #endif #if defined(HAS_ASYNC_FILEMODE) if ( isAsynchronous() ) oflags |= OPEN_ASYNC; #endif #if defined(__CYGWIN32_) fd = OPEN( QFile::encodeName(fn), oflags, 0666 ); #else QString str = fn; reslashify(str); fd = _wopen( (wchar_t*) str.ucs2(), oflags, 0666 ); #endif if ( fd != -1 ) { // open successful FSTAT( fd, &st ); // get the stat for later usage } else { ok = FALSE; } } else { // buffered file I/O QCString perm; char perm2[4]; bool try_create = FALSE; if ( flags() & IO_Append ) { // append to end of file? setFlags( flags() | IO_WriteOnly ); // append implies write perm = isReadable() ? "a+" : "a"; } else { if ( isReadWrite() ) { if ( flags() & IO_Truncate ) { perm = "w+"; } else { perm = "r+"; try_create = TRUE; // try to create if not exists } } else if ( isReadable() ) { perm = "r"; } else if ( isWritable() ) { perm = "w"; } } qstrcpy( perm2, perm ); if ( isTranslated() ) strcat( perm2, "t" ); else strcat( perm2, "b" ); while (1) { // At most twice #if defined(__CYGWIN32_) fh = fopen( QFile::encodeName(fn), perm2 ); #else QString str = fn; QString prm( perm2 ); reslashify(str); fh = _wfopen( (wchar_t*) str.ucs2(), (wchar_t*) prm.ucs2() ); #endif if ( !fh && try_create ) { perm2[0] = 'w'; // try "w+" instead of "r+" try_create = FALSE; } else { break; } } if ( fh ) { FSTAT( FILENO(fh), &st ); // get the stat for later usage } else { ok = FALSE; } } if ( ok ) { setState( IO_Open ); // on successful open the file stat was got; now test what type // of file we have if ( (st.st_mode & STAT_MASK) != STAT_REG ) { // non-seekable setType( IO_Sequential ); length = INT_MAX; ioIndex = (flags() & IO_Append) == 0 ? 0 : length; } else { length = (int)st.st_size; ioIndex = (flags() & IO_Append) == 0 ? 0 : length; if ( !(flags()&IO_Truncate) && length == 0 && isReadable() ) { // try if you can read from it (if you can, it's a sequential // device; e.g. a file in the /proc filesystem) int c = getch(); if ( c != -1 ) { ungetch(c); setType( IO_Sequential ); length = INT_MAX; } } } } else { init(); if ( errno == EMFILE ) // no more file handles/descrs setStatus( IO_ResourceError ); else setStatus( IO_OpenError ); } return ok; }