diff options
Diffstat (limited to 'indra/llcommon/llfile.cpp')
| -rwxr-xr-x[-rw-r--r--] | indra/llcommon/llfile.cpp | 895 |
1 files changed, 805 insertions, 90 deletions
diff --git a/indra/llcommon/llfile.cpp b/indra/llcommon/llfile.cpp index c32a776c3f..c3a0f0bfe0 100644..100755 --- a/indra/llcommon/llfile.cpp +++ b/indra/llcommon/llfile.cpp @@ -1,4 +1,4 @@ -/** +/** * @file llfile.cpp * @author Michael Schlachter * @date 2006-03-23 @@ -8,60 +8,196 @@ * $LicenseInfo:firstyear=2006&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2010, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ #if LL_WINDOWS #include <windows.h> +#include <stdlib.h> // Windows errno +#else +#include <errno.h> #endif #include "linden_common.h" #include "llfile.h" #include "llstring.h" #include "llerror.h" +#include "stringize.h" using namespace std; +static std::string empty; + +// Many of the methods below use OS-level functions that mess with errno. Wrap +// variants of strerror() to report errors. + +#if LL_WINDOWS +// On Windows, use strerror_s(). +std::string strerr(int errn) +{ + char buffer[256]; + strerror_s(buffer, errn); // infers sizeof(buffer) -- love it! + return buffer; +} + +typedef std::basic_ios<char,std::char_traits < char > > _Myios; + +#else +// On Posix we want to call strerror_r(), but alarmingly, there are two +// different variants. The one that returns int always populates the passed +// buffer (except in case of error), whereas the other one always returns a +// valid char* but might or might not populate the passed buffer. How do we +// know which one we're getting? Define adapters for each and let the compiler +// select the applicable adapter. + +// strerror_r() returns char* +std::string message_from(int /*orig_errno*/, const char* /*buffer*/, size_t /*bufflen*/, + const char* strerror_ret) +{ + return strerror_ret; +} + +// strerror_r() returns int +std::string message_from(int orig_errno, const char* buffer, size_t bufflen, + int strerror_ret) +{ + if (strerror_ret == 0) + { + return buffer; + } + // Here strerror_r() has set errno. Since strerror_r() has already failed, + // seems like a poor bet to call it again to diagnose its own error... + int stre_errno = errno; + if (stre_errno == ERANGE) + { + return STRINGIZE("strerror_r() can't explain errno " << orig_errno + << " (" << bufflen << "-byte buffer too small)"); + } + if (stre_errno == EINVAL) + { + return STRINGIZE("unknown errno " << orig_errno); + } + // Here we don't even understand the errno from strerror_r()! + return STRINGIZE("strerror_r() can't explain errno " << orig_errno + << " (error " << stre_errno << ')'); +} + +std::string strerr(int errn) +{ + char buffer[256]; + // Select message_from() function matching the strerror_r() we have on hand. + return message_from(errn, buffer, sizeof(buffer), + strerror_r(errn, buffer, sizeof(buffer))); +} +#endif // ! LL_WINDOWS + +// On either system, shorthand call just infers global 'errno'. +std::string strerr() +{ + return strerr(errno); +} + +int warnif(const std::string& desc, const std::string& filename, int rc, int accept=0) +{ + if (rc < 0) + { + // Capture errno before we start emitting output + int errn = errno; + // For certain operations, a particular errno value might be + // acceptable -- e.g. stat() could permit ENOENT, mkdir() could permit + // EEXIST. Don't warn if caller explicitly says this errno is okay. + if (errn != accept) + { + LL_WARNS("LLFile") << "Couldn't " << desc << " '" << filename + << "' (errno " << errn << "): " << strerr(errn) << LL_ENDL; + } +#if 0 && LL_WINDOWS // turn on to debug file-locking problems + // If the problem is "Permission denied," maybe it's because another + // process has the file open. Try to find out. + if (errn == EACCES) // *not* EPERM + { + // Only do any of this stuff (before LL_ENDL) if it will be logged. + LL_DEBUGS("LLFile") << empty; + const char* TEMP = getenv("TEMP"); + if (! TEMP) + { + LL_CONT << "No $TEMP, not running 'handle'"; + } + else + { + std::string tf(TEMP); + tf += "\\handle.tmp"; + // http://technet.microsoft.com/en-us/sysinternals/bb896655 + std::string cmd(STRINGIZE("handle \"" << filename + // "openfiles /query /v | fgrep -i \"" << filename + << "\" > \"" << tf << '"')); + LL_CONT << cmd; + if (system(cmd.c_str()) != 0) + { + LL_CONT << "\nDownload 'handle.exe' from http://technet.microsoft.com/en-us/sysinternals/bb896655"; + } + else + { + std::ifstream inf(tf); + std::string line; + while (std::getline(inf, line)) + { + LL_CONT << '\n' << line; + } + } + LLFile::remove(tf); + } + LL_CONT << LL_ENDL; + } +#endif // LL_WINDOWS hack to identify processes holding file open + } + return rc; +} + // static int LLFile::mkdir(const std::string& dirname, int perms) { -#if LL_WINDOWS +#if LL_WINDOWS // permissions are ignored on Windows std::string utf8dirname = dirname; llutf16string utf16dirname = utf8str_to_utf16str(utf8dirname); - return _wmkdir(utf16dirname.c_str()); + int rc = _wmkdir(utf16dirname.c_str()); #else - return ::mkdir(dirname.c_str(), (mode_t)perms); + int rc = ::mkdir(dirname.c_str(), (mode_t)perms); #endif + // We often use mkdir() to ensure the existence of a directory that might + // already exist. Don't spam the log if it does. + return warnif("mkdir", dirname, rc, EEXIST); } // static int LLFile::rmdir(const std::string& dirname) { -#if LL_WINDOWS +#if LL_WINDOWS // permissions are ignored on Windows std::string utf8dirname = dirname; llutf16string utf16dirname = utf8str_to_utf16str(utf8dirname); - return _wrmdir(utf16dirname.c_str()); + int rc = _wrmdir(utf16dirname.c_str()); #else - return ::rmdir(dirname.c_str()); + int rc = ::rmdir(dirname.c_str()); #endif + return warnif("rmdir", dirname, rc); } // static @@ -108,10 +244,11 @@ int LLFile::remove(const std::string& filename) #if LL_WINDOWS std::string utf8filename = filename; llutf16string utf16filename = utf8str_to_utf16str(utf8filename); - return _wremove(utf16filename.c_str()); + int rc = _wremove(utf16filename.c_str()); #else - return ::remove(filename.c_str()); + int rc = ::remove(filename.c_str()); #endif + return warnif("remove", filename, rc); } int LLFile::rename(const std::string& filename, const std::string& newname) @@ -121,10 +258,11 @@ int LLFile::rename(const std::string& filename, const std::string& newname) std::string utf8newname = newname; llutf16string utf16filename = utf8str_to_utf16str(utf8filename); llutf16string utf16newname = utf8str_to_utf16str(utf8newname); - return _wrename(utf16filename.c_str(),utf16newname.c_str()); + int rc = _wrename(utf16filename.c_str(),utf16newname.c_str()); #else - return ::rename(filename.c_str(),newname.c_str()); + int rc = ::rename(filename.c_str(),newname.c_str()); #endif + return warnif(STRINGIZE("rename to '" << newname << "' from"), filename, rc); } int LLFile::stat(const std::string& filename, llstat* filestatus) @@ -132,23 +270,26 @@ int LLFile::stat(const std::string& filename, llstat* filestatus) #if LL_WINDOWS std::string utf8filename = filename; llutf16string utf16filename = utf8str_to_utf16str(utf8filename); - return _wstat(utf16filename.c_str(),filestatus); + int rc = _wstat(utf16filename.c_str(),filestatus); #else - return ::stat(filename.c_str(),filestatus); + int rc = ::stat(filename.c_str(),filestatus); #endif + // We use stat() to determine existence (see isfile(), isdir()). + // Don't spam the log if the subject pathname doesn't exist. + return warnif("stat", filename, rc, ENOENT); } bool LLFile::isdir(const std::string& filename) { llstat st; - + return stat(filename, &st) == 0 && S_ISDIR(st.st_mode); } bool LLFile::isfile(const std::string& filename) { llstat st; - + return stat(filename, &st) == 0 && S_ISREG(st.st_mode); } @@ -185,9 +326,10 @@ const char *LLFile::tmpdir() /***************** Modified file stream created to overcome the incorrect behaviour of posix fopen in windows *******************/ -#if USE_LLFILESTREAMS +#if LL_WINDOWS -LLFILE * LLFile::_Fiopen(const std::string& filename, std::ios::openmode mode,int) // protection currently unused +LLFILE * LLFile::_Fiopen(const std::string& filename, + std::ios::openmode mode) { // open a file static const char *mods[] = { // fopen mode strings corresponding to valid[i] @@ -246,117 +388,690 @@ LLFILE * LLFile::_Fiopen(const std::string& filename, std::ios::openmode mode,in return (0); } -/************** input file stream ********************************/ +#endif /* LL_WINDOWS */ -void llifstream::close() -{ // close the C stream - if (_Filebuffer && _Filebuffer->close() == 0) +/************** llstdio file buffer ********************************/ + + +//llstdio_filebuf* llstdio_filebuf::open(const char *_Filename, +// ios_base::openmode _Mode) +//{ +//#if LL_WINDOWS +// _Filet *_File; +// if (is_open() || (_File = LLFILE::_Fiopen(_Filename, _Mode)) == 0) +// return (0); // open failed +// +// _Init(_File, _Openfl); +// _Initcvt(&_USE(_Mysb::getloc(), _Cvt)); +// return (this); // open succeeded +//#else +// std::filebuf* _file = std::filebuf::open(_Filename, _Mode); +// if (NULL == _file) return NULL; +// return this; +//#endif +//} + + +// *TODO: Seek the underlying c stream for better cross-platform compatibility? +#if !LL_WINDOWS +llstdio_filebuf::int_type llstdio_filebuf::overflow(llstdio_filebuf::int_type __c) +{ + int_type __ret = traits_type::eof(); + const bool __testeof = traits_type::eq_int_type(__c, __ret); + const bool __testout = _M_mode & ios_base::out; + if (__testout && !_M_reading) { - _Myios::setstate(ios_base::failbit); /*Flawfinder: ignore*/ + if (this->pbase() < this->pptr()) + { + // If appropriate, append the overflow char. + if (!__testeof) + { + *this->pptr() = traits_type::to_char_type(__c); + this->pbump(1); + } + + // Convert pending sequence to external representation, + // and output. + if (_convert_to_external(this->pbase(), + this->pptr() - this->pbase())) + { + _M_set_buffer(0); + __ret = traits_type::not_eof(__c); + } } + else if (_M_buf_size > 1) + { + // Overflow in 'uncommitted' mode: set _M_writing, set + // the buffer to the initial 'write' mode, and put __c + // into the buffer. + _M_set_buffer(0); + _M_writing = true; + if (!__testeof) + { + *this->pptr() = traits_type::to_char_type(__c); + this->pbump(1); + } + __ret = traits_type::not_eof(__c); + } + else + { + // Unbuffered. + char_type __conv = traits_type::to_char_type(__c); + if (__testeof || _convert_to_external(&__conv, 1)) + { + _M_writing = true; + __ret = traits_type::not_eof(__c); + } + } + } + return __ret; } -void llifstream::open(const std::string& _Filename, /* Flawfinder: ignore */ - ios_base::openmode _Mode, - int _Prot) -{ // open a C stream with specified mode - - LLFILE* filep = LLFile::_Fiopen(_Filename,_Mode | ios_base::in, _Prot); - if(filep == NULL) +bool llstdio_filebuf::_convert_to_external(char_type* __ibuf, + std::streamsize __ilen) +{ + // Sizes of external and pending output. + streamsize __elen; + streamsize __plen; + if (__check_facet(_M_codecvt).always_noconv()) + { + //__elen = _M_file.xsputn(reinterpret_cast<char*>(__ibuf), __ilen); + __elen = fwrite(reinterpret_cast<void*>(__ibuf), 1, + __ilen, _M_file.file()); + __plen = __ilen; + } + else + { + // Worst-case number of external bytes needed. + // XXX Not done encoding() == -1. + streamsize __blen = __ilen * _M_codecvt->max_length(); + char* __buf = static_cast<char*>(__builtin_alloca(__blen)); + + char* __bend; + const char_type* __iend; + codecvt_base::result __r; + __r = _M_codecvt->out(_M_state_cur, __ibuf, __ibuf + __ilen, + __iend, __buf, __buf + __blen, __bend); + + if (__r == codecvt_base::ok || __r == codecvt_base::partial) + __blen = __bend - __buf; + else if (__r == codecvt_base::noconv) { - _Myios::setstate(ios_base::failbit); /*Flawfinder: ignore*/ - return; + // Same as the always_noconv case above. + __buf = reinterpret_cast<char*>(__ibuf); + __blen = __ilen; + } + else + __throw_ios_failure(__N("llstdio_filebuf::_convert_to_external " + "conversion error")); + + //__elen = _M_file.xsputn(__buf, __blen); + __elen = fwrite(__buf, 1, __blen, _M_file.file()); + __plen = __blen; + + // Try once more for partial conversions. + if (__r == codecvt_base::partial && __elen == __plen) + { + const char_type* __iresume = __iend; + streamsize __rlen = this->pptr() - __iend; + __r = _M_codecvt->out(_M_state_cur, __iresume, + __iresume + __rlen, __iend, __buf, + __buf + __blen, __bend); + if (__r != codecvt_base::error) + { + __rlen = __bend - __buf; + //__elen = _M_file.xsputn(__buf, __rlen); + __elen = fwrite(__buf, 1, __rlen, _M_file.file()); + __plen = __rlen; + } + else + { + __throw_ios_failure(__N("llstdio_filebuf::_convert_to_external " + "conversion error")); + } + } } - llassert(_Filebuffer == NULL); - _Filebuffer = new _Myfb(filep); - _ShouldClose = true; - _Myios::init(_Filebuffer); + return __elen == __plen; } -bool llifstream::is_open() const -{ // test if C stream has been opened - if(_Filebuffer) - return (_Filebuffer->is_open()); - return false; +llstdio_filebuf::int_type llstdio_filebuf::underflow() +{ + int_type __ret = traits_type::eof(); + const bool __testin = _M_mode & ios_base::in; + if (__testin) + { + if (_M_writing) + { + if (overflow() == traits_type::eof()) + return __ret; + //_M_set_buffer(-1); + //_M_writing = false; + } + // Check for pback madness, and if so switch back to the + // normal buffers and jet outta here before expensive + // fileops happen... + _M_destroy_pback(); + + if (this->gptr() < this->egptr()) + return traits_type::to_int_type(*this->gptr()); + + // Get and convert input sequence. + const size_t __buflen = _M_buf_size > 1 ? _M_buf_size - 1 : 1; + + // Will be set to true if ::fread() returns 0 indicating EOF. + bool __got_eof = false; + // Number of internal characters produced. + streamsize __ilen = 0; + codecvt_base::result __r = codecvt_base::ok; + if (__check_facet(_M_codecvt).always_noconv()) + { + //__ilen = _M_file.xsgetn(reinterpret_cast<char*>(this->eback()), + // __buflen); + __ilen = fread(reinterpret_cast<void*>(this->eback()), 1, + __buflen, _M_file.file()); + if (__ilen == 0) + __got_eof = true; + } + else + { + // Worst-case number of external bytes. + // XXX Not done encoding() == -1. + const int __enc = _M_codecvt->encoding(); + streamsize __blen; // Minimum buffer size. + streamsize __rlen; // Number of chars to read. + if (__enc > 0) + __blen = __rlen = __buflen * __enc; + else + { + __blen = __buflen + _M_codecvt->max_length() - 1; + __rlen = __buflen; + } + const streamsize __remainder = _M_ext_end - _M_ext_next; + __rlen = __rlen > __remainder ? __rlen - __remainder : 0; + + // An imbue in 'read' mode implies first converting the external + // chars already present. + if (_M_reading && this->egptr() == this->eback() && __remainder) + __rlen = 0; + + // Allocate buffer if necessary and move unconverted + // bytes to front. + if (_M_ext_buf_size < __blen) + { + char* __buf = new char[__blen]; + if (__remainder) + __builtin_memcpy(__buf, _M_ext_next, __remainder); + + delete [] _M_ext_buf; + _M_ext_buf = __buf; + _M_ext_buf_size = __blen; + } + else if (__remainder) + __builtin_memmove(_M_ext_buf, _M_ext_next, __remainder); + + _M_ext_next = _M_ext_buf; + _M_ext_end = _M_ext_buf + __remainder; + _M_state_last = _M_state_cur; + + do + { + if (__rlen > 0) + { + // Sanity check! + // This may fail if the return value of + // codecvt::max_length() is bogus. + if (_M_ext_end - _M_ext_buf + __rlen > _M_ext_buf_size) + { + __throw_ios_failure(__N("llstdio_filebuf::underflow " + "codecvt::max_length() " + "is not valid")); + } + //streamsize __elen = _M_file.xsgetn(_M_ext_end, __rlen); + streamsize __elen = fread(_M_ext_end, 1, + __rlen, _M_file.file()); + if (__elen == 0) + __got_eof = true; + else if (__elen == -1) + break; + //_M_ext_end += __elen; + } + + char_type* __iend = this->eback(); + if (_M_ext_next < _M_ext_end) + { + __r = _M_codecvt->in(_M_state_cur, _M_ext_next, + _M_ext_end, _M_ext_next, + this->eback(), + this->eback() + __buflen, __iend); +} + if (__r == codecvt_base::noconv) +{ + size_t __avail = _M_ext_end - _M_ext_buf; + __ilen = std::min(__avail, __buflen); + traits_type::copy(this->eback(), + reinterpret_cast<char_type*> + (_M_ext_buf), __ilen); + _M_ext_next = _M_ext_buf + __ilen; + } + else + __ilen = __iend - this->eback(); + + // _M_codecvt->in may return error while __ilen > 0: this is + // ok, and actually occurs in case of mixed encodings (e.g., + // XML files). + if (__r == codecvt_base::error) + break; + + __rlen = 1; + } while (__ilen == 0 && !__got_eof); + } + + if (__ilen > 0) + { + _M_set_buffer(__ilen); + _M_reading = true; + __ret = traits_type::to_int_type(*this->gptr()); + } + else if (__got_eof) + { + // If the actual end of file is reached, set 'uncommitted' + // mode, thus allowing an immediate write without an + // intervening seek. + _M_set_buffer(-1); + _M_reading = false; + // However, reaching it while looping on partial means that + // the file has got an incomplete character. + if (__r == codecvt_base::partial) + __throw_ios_failure(__N("llstdio_filebuf::underflow " + "incomplete character in file")); + } + else if (__r == codecvt_base::error) + __throw_ios_failure(__N("llstdio_filebuf::underflow " + "invalid byte sequence in file")); + else + __throw_ios_failure(__N("llstdio_filebuf::underflow " + "error reading the file")); + } + return __ret; } -llifstream::~llifstream() -{ - if (_ShouldClose) + +std::streamsize llstdio_filebuf::xsgetn(char_type* __s, std::streamsize __n) +{ + // Clear out pback buffer before going on to the real deal... + streamsize __ret = 0; + if (_M_pback_init) + { + if (__n > 0 && this->gptr() == this->eback()) + { + *__s++ = *this->gptr(); + this->gbump(1); + __ret = 1; + --__n; + } + _M_destroy_pback(); + } + + // Optimization in the always_noconv() case, to be generalized in the + // future: when __n > __buflen we read directly instead of using the + // buffer repeatedly. + const bool __testin = _M_mode & ios_base::in; + const streamsize __buflen = _M_buf_size > 1 ? _M_buf_size - 1 : 1; + + if (__n > __buflen && __check_facet(_M_codecvt).always_noconv() + && __testin && !_M_writing) + { + // First, copy the chars already present in the buffer. + const streamsize __avail = this->egptr() - this->gptr(); + if (__avail != 0) + { + if (__avail == 1) + *__s = *this->gptr(); + else + traits_type::copy(__s, this->gptr(), __avail); + __s += __avail; + this->gbump(__avail); + __ret += __avail; + __n -= __avail; + } + + // Need to loop in case of short reads (relatively common + // with pipes). + streamsize __len; + for (;;) + { + //__len = _M_file.xsgetn(reinterpret_cast<char*>(__s), __n); + __len = fread(reinterpret_cast<void*>(__s), 1, + __n, _M_file.file()); + if (__len == -1) + __throw_ios_failure(__N("llstdio_filebuf::xsgetn " + "error reading the file")); + if (__len == 0) + break; + + __n -= __len; + __ret += __len; + if (__n == 0) + break; + + __s += __len; + } + + if (__n == 0) + { + _M_set_buffer(0); + _M_reading = true; + } + else if (__len == 0) + { + // If end of file is reached, set 'uncommitted' + // mode, thus allowing an immediate write without + // an intervening seek. + _M_set_buffer(-1); + _M_reading = false; + } + } + else + __ret += __streambuf_type::xsgetn(__s, __n); + + return __ret; +} + +std::streamsize llstdio_filebuf::xsputn(char_type* __s, std::streamsize __n) +{ + // Optimization in the always_noconv() case, to be generalized in the + // future: when __n is sufficiently large we write directly instead of + // using the buffer. + streamsize __ret = 0; + const bool __testout = _M_mode & ios_base::out; + if (__check_facet(_M_codecvt).always_noconv() + && __testout && !_M_reading) + { + // Measurement would reveal the best choice. + const streamsize __chunk = 1ul << 10; + streamsize __bufavail = this->epptr() - this->pptr(); + + // Don't mistake 'uncommitted' mode buffered with unbuffered. + if (!_M_writing && _M_buf_size > 1) + __bufavail = _M_buf_size - 1; + + const streamsize __limit = std::min(__chunk, __bufavail); + if (__n >= __limit) + { + const streamsize __buffill = this->pptr() - this->pbase(); + const char* __buf = reinterpret_cast<const char*>(this->pbase()); + //__ret = _M_file.xsputn_2(__buf, __buffill, + // reinterpret_cast<const char*>(__s), __n); + if (__buffill) + { + __ret = fwrite(__buf, 1, __buffill, _M_file.file()); + } + if (__ret == __buffill) { - close(); + __ret += fwrite(reinterpret_cast<const char*>(__s), 1, + __n, _M_file.file()); + } + if (__ret == __buffill + __n) + { + _M_set_buffer(0); + _M_writing = true; +} + if (__ret > __buffill) + __ret -= __buffill; + else + __ret = 0; + } + else + __ret = __streambuf_type::xsputn(__s, __n); } - delete _Filebuffer; + else + __ret = __streambuf_type::xsputn(__s, __n); + return __ret; } +int llstdio_filebuf::sync() +{ + return (_M_file.sync() == 0 ? 0 : -1); +} +#endif + +/************** input file stream ********************************/ + + +llifstream::llifstream() : _M_filebuf(), +#if LL_WINDOWS + std::istream(&_M_filebuf) {} +#else + std::istream() +{ + this->init(&_M_filebuf); +} +#endif + +// explicit llifstream::llifstream(const std::string& _Filename, - ios_base::openmode _Mode, - int _Prot) - : std::basic_istream< char , std::char_traits< char > >(NULL,true),_Filebuffer(NULL),_ShouldClose(false) + ios_base::openmode _Mode) : _M_filebuf(), +#if LL_WINDOWS + std::istream(&_M_filebuf) +{ + llutf16string wideName = utf8str_to_utf16str( _Filename ); + if (_M_filebuf.open(wideName.c_str(), _Mode | ios_base::in) == 0) + { + _Myios::setstate(ios_base::failbit); + } +} +#else + std::istream() +{ + this->init(&_M_filebuf); + this->open(_Filename.c_str(), _Mode | ios_base::in); +} +#endif -{ // construct with named file and specified mode - open(_Filename, _Mode | ios_base::in, _Prot); /* Flawfinder: ignore */ +// explicit +llifstream::llifstream(const char* _Filename, + ios_base::openmode _Mode) : _M_filebuf(), +#if LL_WINDOWS + std::istream(&_M_filebuf) +{ + llutf16string wideName = utf8str_to_utf16str( _Filename ); + if (_M_filebuf.open(wideName.c_str(), _Mode | ios_base::in) == 0) + { + _Myios::setstate(ios_base::failbit); +} +} +#else + std::istream() +{ + this->init(&_M_filebuf); + this->open(_Filename, _Mode | ios_base::in); } +#endif -/************** output file stream ********************************/ +// explicit +llifstream::llifstream(_Filet *_File, + ios_base::openmode _Mode, size_t _Size) : + _M_filebuf(_File, _Mode, _Size), +#if LL_WINDOWS + std::istream(&_M_filebuf) {} +#else + std::istream() +{ + this->init(&_M_filebuf); +} +#endif -bool llofstream::is_open() const +#if !LL_WINDOWS +// explicit +llifstream::llifstream(int __fd, + ios_base::openmode _Mode, size_t _Size) : + _M_filebuf(__fd, _Mode, _Size), + std::istream() +{ + this->init(&_M_filebuf); +} +#endif + +bool llifstream::is_open() const { // test if C stream has been opened - if(_Filebuffer) - return (_Filebuffer->is_open()); - return false; + return _M_filebuf.is_open(); } -void llofstream::open(const std::string& _Filename, /* Flawfinder: ignore */ - ios_base::openmode _Mode, - int _Prot) +void llifstream::open(const char* _Filename, ios_base::openmode _Mode) { // open a C stream with specified mode - LLFILE* filep = LLFile::_Fiopen(_Filename,_Mode | ios_base::out, _Prot); - if(filep == NULL) +#if LL_WINDOWS + llutf16string wideName = utf8str_to_utf16str( _Filename ); + if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::in) == 0) { - _Myios::setstate(ios_base::failbit); /*Flawfinder: ignore*/ - return; + _Myios::setstate(ios_base::failbit); } - llassert(_Filebuffer==NULL); - _Filebuffer = new _Myfb(filep); - _ShouldClose = true; - _Myios::init(_Filebuffer); + else + { + _Myios::clear(); + } +#else + if (_M_filebuf.open(_Filename, _Mode | ios_base::in) == 0) + { + this->setstate(ios_base::failbit); + } + else + { + this->clear(); + } +#endif } -void llofstream::close() +void llifstream::close() { // close the C stream - if(is_open()) + if (_M_filebuf.close() == 0) { - if (_Filebuffer->close() == 0) - { - _Myios::setstate(ios_base::failbit); /*Flawfinder: ignore*/ +#if LL_WINDOWS + _Myios::setstate(ios_base::failbit); +#else + this->setstate(ios_base::failbit); +#endif } - delete _Filebuffer; - _Filebuffer = NULL; - _ShouldClose = false; } + + +/************** output file stream ********************************/ + + +llofstream::llofstream() : _M_filebuf(), +#if LL_WINDOWS + std::ostream(&_M_filebuf) {} +#else + std::ostream() +{ + this->init(&_M_filebuf); } +#endif +// explicit llofstream::llofstream(const std::string& _Filename, - std::ios_base::openmode _Mode, - int _Prot) - : std::basic_ostream<char,std::char_traits < char > >(NULL,true),_Filebuffer(NULL),_ShouldClose(false) -{ // construct with named file and specified mode - open(_Filename, _Mode , _Prot); /* Flawfinder: ignore */ + ios_base::openmode _Mode) : _M_filebuf(), +#if LL_WINDOWS + std::ostream(&_M_filebuf) +{ + llutf16string wideName = utf8str_to_utf16str( _Filename ); + if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::out) == 0) + { + _Myios::setstate(ios_base::failbit); + } +} +#else + std::ostream() +{ + this->init(&_M_filebuf); + this->open(_Filename.c_str(), _Mode | ios_base::out); +} +#endif + +// explicit +llofstream::llofstream(const char* _Filename, + ios_base::openmode _Mode) : _M_filebuf(), +#if LL_WINDOWS + std::ostream(&_M_filebuf) +{ + llutf16string wideName = utf8str_to_utf16str( _Filename ); + if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::out) == 0) + { + _Myios::setstate(ios_base::failbit); + } +} +#else + std::ostream() +{ + this->init(&_M_filebuf); + this->open(_Filename, _Mode | ios_base::out); +} +#endif + +// explicit +llofstream::llofstream(_Filet *_File, + ios_base::openmode _Mode, size_t _Size) : + _M_filebuf(_File, _Mode, _Size), +#if LL_WINDOWS + std::ostream(&_M_filebuf) {} +#else + std::ostream() +{ + this->init(&_M_filebuf); +} +#endif + +#if !LL_WINDOWS +// explicit +llofstream::llofstream(int __fd, + ios_base::openmode _Mode, size_t _Size) : + _M_filebuf(__fd, _Mode, _Size), + std::ostream() +{ + this->init(&_M_filebuf); +} +#endif + +bool llofstream::is_open() const +{ // test if C stream has been opened + return _M_filebuf.is_open(); } -llofstream::~llofstream() -{ - // destroy the object - if (_ShouldClose) +void llofstream::open(const char* _Filename, ios_base::openmode _Mode) +{ // open a C stream with specified mode +#if LL_WINDOWS + llutf16string wideName = utf8str_to_utf16str( _Filename ); + if (_M_filebuf.open( wideName.c_str(), _Mode | ios_base::out) == 0) +{ + _Myios::setstate(ios_base::failbit); + } + else + { + _Myios::clear(); + } +#else + if (_M_filebuf.open(_Filename, _Mode | ios_base::out) == 0) { - close(); + this->setstate(ios_base::failbit); } - delete _Filebuffer; + else + { + this->clear(); + } +#endif } -#endif // #if USE_LLFILESTREAMS +void llofstream::close() +{ // close the C stream + if (_M_filebuf.close() == 0) + { +#if LL_WINDOWS + _Myios::setstate(ios_base::failbit); +#else + this->setstate(ios_base::failbit); +#endif + } +} /************** helper functions ********************************/ |