diff options
| -rw-r--r-- | SConstruct | 5 | ||||
| -rw-r--r-- | ext/gzstream/LICENSE | 504 | ||||
| -rw-r--r-- | ext/gzstream/SConscript | 40 | ||||
| -rw-r--r-- | ext/gzstream/VERSION | 1 | ||||
| -rw-r--r-- | ext/gzstream/gzstream.cc | 165 | ||||
| -rw-r--r-- | ext/gzstream/gzstream.hh | 122 | ||||
| -rw-r--r-- | src/base/output.cc | 77 | ||||
| -rw-r--r-- | src/base/output.hh | 11 |
8 files changed, 900 insertions, 25 deletions
diff --git a/SConstruct b/SConstruct index d33ed9079..6894ac05c 100644 --- a/SConstruct +++ b/SConstruct @@ -726,6 +726,11 @@ env.SConscript('ext/libelf/SConscript', build_dir = joinpath(build_root, 'libelf'), exports = 'env') +# gzstream build is shared across all configs in the build root. +env.SConscript('ext/gzstream/SConscript', + build_dir = joinpath(build_root, 'gzstream'), + exports = 'env') + ################################################### # # This function is used to set up a directory with switching headers diff --git a/ext/gzstream/LICENSE b/ext/gzstream/LICENSE new file mode 100644 index 000000000..f3f1b3b65 --- /dev/null +++ b/ext/gzstream/LICENSE @@ -0,0 +1,504 @@ + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +# +# Authors: Nathan Binkert + +import os, subprocess + +Import('env') + +env.Library('gzstream', [File('gzstream.cc')]) + +env.Append(CPPPATH=Dir('.')) +env.Append(LIBS=['gzstream']) +env.Append(LIBPATH=[Dir('.')]) + diff --git a/ext/gzstream/VERSION b/ext/gzstream/VERSION new file mode 100644 index 000000000..511137de1 --- /dev/null +++ b/ext/gzstream/VERSION @@ -0,0 +1 @@ +1.5 (08 Jan 2003) diff --git a/ext/gzstream/gzstream.cc b/ext/gzstream/gzstream.cc new file mode 100644 index 000000000..c804a33cb --- /dev/null +++ b/ext/gzstream/gzstream.cc @@ -0,0 +1,165 @@ +// ============================================================================ +// gzstream, C++ iostream classes wrapping the zlib compression library. +// Copyright (C) 2001 Deepak Bandyopadhyay, Lutz Kettner +// +// 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; either +// version 2.1 of the License, or (at your option) any later version. +// +// 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +// ============================================================================ +// +// File : gzstream.C +// Revision : $Revision: 1.7 $ +// Revision_date : $Date: 2003/01/08 14:41:27 $ +// Author(s) : Deepak Bandyopadhyay, Lutz Kettner +// +// Standard streambuf implementation following Nicolai Josuttis, "The +// Standard C++ Library". +// ============================================================================ + +#include <gzstream.hh> +#include <iostream> +#include <string.h> // for memcpy + +#ifdef GZSTREAM_NAMESPACE +namespace GZSTREAM_NAMESPACE { +#endif + +// ---------------------------------------------------------------------------- +// Internal classes to implement gzstream. See header file for user classes. +// ---------------------------------------------------------------------------- + +// -------------------------------------- +// class gzstreambuf: +// -------------------------------------- + +gzstreambuf* gzstreambuf::open( const char* name, int open_mode) { + if ( is_open()) + return (gzstreambuf*)0; + mode = open_mode; + // no append nor read/write mode + if ((mode & std::ios::ate) || (mode & std::ios::app) + || ((mode & std::ios::in) && (mode & std::ios::out))) + return (gzstreambuf*)0; + char fmode[10]; + char* fmodeptr = fmode; + if ( mode & std::ios::in) + *fmodeptr++ = 'r'; + else if ( mode & std::ios::out) + *fmodeptr++ = 'w'; + *fmodeptr++ = 'b'; + *fmodeptr = '\0'; + file = gzopen( name, fmode); + if (file == 0) + return (gzstreambuf*)0; + opened = 1; + return this; +} + +gzstreambuf * gzstreambuf::close() { + if ( is_open()) { + sync(); + opened = 0; + if ( gzclose( file) == Z_OK) + return this; + } + return (gzstreambuf*)0; +} + +int gzstreambuf::underflow() { // used for input buffer only + if ( gptr() && ( gptr() < egptr())) + return * reinterpret_cast<unsigned char *>( gptr()); + + if ( ! (mode & std::ios::in) || ! opened) + return EOF; + // Josuttis' implementation of inbuf + int n_putback = gptr() - eback(); + if ( n_putback > 4) + n_putback = 4; + memcpy( buffer + (4 - n_putback), gptr() - n_putback, n_putback); + + int num = gzread( file, buffer+4, bufferSize-4); + if (num <= 0) // ERROR or EOF + return EOF; + + // reset buffer pointers + setg( buffer + (4 - n_putback), // beginning of putback area + buffer + 4, // read position + buffer + 4 + num); // end of buffer + + // return next character + return *reinterpret_cast<unsigned char *>(gptr()); +} + +int gzstreambuf::flush_buffer() { + // Separate the writing of the buffer from overflow() and + // sync() operation. + int w = pptr() - pbase(); + if ( gzwrite( file, pbase(), w) != w) + return EOF; + pbump( -w); + return w; +} + +int gzstreambuf::overflow( int c) { // used for output buffer only + if ( ! ( mode & std::ios::out) || ! opened) + return EOF; + if (c != EOF) { + *pptr() = c; + pbump(1); + } + if ( flush_buffer() == EOF) + return EOF; + return c; +} + +int gzstreambuf::sync() { + // Changed to use flush_buffer() instead of overflow( EOF) + // which caused improper behavior with std::endl and flush(), + // bug reported by Vincent Ricard. + if ( pptr() && pptr() > pbase()) { + if ( flush_buffer() == EOF) + return -1; + } + return 0; +} + +// -------------------------------------- +// class gzstreambase: +// -------------------------------------- + +gzstreambase::gzstreambase( const char* name, int mode) { + init( &buf); + open( name, mode); +} + +gzstreambase::~gzstreambase() { + buf.close(); +} + +void gzstreambase::open( const char* name, int open_mode) { + if ( ! buf.open( name, open_mode)) + clear( rdstate() | std::ios::badbit); +} + +void gzstreambase::close() { + if ( buf.is_open()) + if ( ! buf.close()) + clear( rdstate() | std::ios::badbit); +} + +#ifdef GZSTREAM_NAMESPACE +} // namespace GZSTREAM_NAMESPACE +#endif + +// ============================================================================ +// EOF // diff --git a/ext/gzstream/gzstream.hh b/ext/gzstream/gzstream.hh new file mode 100644 index 000000000..b43fd23b2 --- /dev/null +++ b/ext/gzstream/gzstream.hh @@ -0,0 +1,122 @@ +// ============================================================================ +// gzstream, C++ iostream classes wrapping the zlib compression library. +// Copyright (C) 2001 Deepak Bandyopadhyay, Lutz Kettner +// +// 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; either +// version 2.1 of the License, or (at your option) any later version. +// +// 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +// ============================================================================ +// +// File : gzstream.h +// Revision : $Revision: 1.5 $ +// Revision_date : $Date: 2002/04/26 23:30:15 $ +// Author(s) : Deepak Bandyopadhyay, Lutz Kettner +// +// Standard streambuf implementation following Nicolai Josuttis, "The +// Standard C++ Library". +// ============================================================================ + +#ifndef GZSTREAM_H +#define GZSTREAM_H 1 + +// standard C++ with new header file names and std:: namespace +#include <iostream> +#include <fstream> +#include <zlib.h> + +#ifdef GZSTREAM_NAMESPACE +namespace GZSTREAM_NAMESPACE { +#endif + +// ---------------------------------------------------------------------------- +// Internal classes to implement gzstream. See below for user classes. +// ---------------------------------------------------------------------------- + +class gzstreambuf : public std::streambuf { +private: + static const int bufferSize = 47+256; // size of data buff + // totals 512 bytes under g++ for igzstream at the end. + + gzFile file; // file handle for compressed file + char buffer[bufferSize]; // data buffer + char opened; // open/close state of stream + int mode; // I/O mode + + int flush_buffer(); +public: + gzstreambuf() : opened(0) { + setp( buffer, buffer + (bufferSize-1)); + setg( buffer + 4, // beginning of putback area + buffer + 4, // read position + buffer + 4); // end position + // ASSERT: both input & output capabilities will not be used together + } + int is_open() { return opened; } + gzstreambuf* open( const char* name, int open_mode); + gzstreambuf* close(); + ~gzstreambuf() { close(); } + + virtual int overflow( int c = EOF); + virtual int underflow(); + virtual int sync(); +}; + +class gzstreambase : virtual public std::ios { +protected: + gzstreambuf buf; +public: + gzstreambase() { init(&buf); } + gzstreambase( const char* name, int open_mode); + ~gzstreambase(); + int is_open() { return buf.is_open(); } + void open( const char* name, int open_mode); + void close(); + gzstreambuf* rdbuf() { return &buf; } +}; + +// ---------------------------------------------------------------------------- +// User classes. Use igzstream and ogzstream analogously to ifstream and +// ofstream respectively. They read and write files based on the gz* +// function interface of the zlib. Files are compatible with gzip compression. +// ---------------------------------------------------------------------------- + +class igzstream : public gzstreambase, public std::istream { +public: + igzstream() : std::istream( &buf) {} + igzstream( const char* name, int open_mode = std::ios::in) + : gzstreambase( name, open_mode | std::ios::in), std::istream( &buf) {} + gzstreambuf* rdbuf() { return gzstreambase::rdbuf(); } + void open( const char* name, int open_mode = std::ios::in) { + gzstreambase::open( name, open_mode); + } +}; + +class ogzstream : public gzstreambase, public std::ostream { +public: + ogzstream() : std::ostream( &buf) {} + ogzstream( const char* name, int mode = std::ios::out) + : gzstreambase( name, mode | std::ios::out), std::ostream( &buf) {} + gzstreambuf* rdbuf() { return gzstreambase::rdbuf(); } + void open( const char* name, int open_mode = std::ios::out) { + gzstreambase::open( name, open_mode); + } +}; + +#ifdef GZSTREAM_NAMESPACE +} // namespace GZSTREAM_NAMESPACE +#endif + +#endif // GZSTREAM_H +// ============================================================================ +// EOF // + diff --git a/src/base/output.cc b/src/base/output.cc index 5a0f2ea70..ea13e23d4 100644 --- a/src/base/output.cc +++ b/src/base/output.cc @@ -36,6 +36,8 @@ #include <fstream> +#include <gzstream.hh> + #include "base/misc.hh" #include "base/output.hh" @@ -50,7 +52,45 @@ OutputDirectory::OutputDirectory() {} OutputDirectory::~OutputDirectory() -{} +{ + for (map_t::iterator i = files.begin(); i != files.end(); i++) { + if (i->second) + delete i->second; + } +} + +std::ostream * +OutputDirectory::checkForStdio(const string &name) const +{ + if (name == "cerr" || name == "stderr") + return &cerr; + + if (name == "cout" || name == "stdout") + return &cout; + + return NULL; +} + +ostream * +OutputDirectory::openFile(const string &filename, + ios_base::openmode mode) const +{ + if (filename.find(".gz", filename.length()-3) < filename.length()) { + ogzstream *file = new ogzstream(filename.c_str(), mode); + + if (!file->is_open()) + fatal("Cannot open file %s", filename); + + return file; + } else { + ofstream *file = new ofstream(filename.c_str(), mode); + + if (!file->is_open()) + fatal("Cannot open file %s", filename); + + return file; + } +} void OutputDirectory::setDirectory(const string &d) @@ -66,7 +106,7 @@ OutputDirectory::setDirectory(const string &d) } const string & -OutputDirectory::directory() +OutputDirectory::directory() const { if (dir.empty()) panic("Output directory not set!"); @@ -74,8 +114,8 @@ OutputDirectory::directory() return dir; } -string -OutputDirectory::resolve(const string &name) +inline string +OutputDirectory::resolve(const string &name) const { return (name[0] != '/') ? dir + name : name; } @@ -83,16 +123,14 @@ OutputDirectory::resolve(const string &name) ostream * OutputDirectory::create(const string &name, bool binary) { - if (name == "cerr" || name == "stderr") - return &cerr; - - if (name == "cout" || name == "stdout") - return &cout; + ostream *file = checkForStdio(name); + if (file) + return file; - ofstream *file = new ofstream(resolve(name).c_str(), - ios::trunc | binary ? ios::binary : (ios::openmode)0); - if (!file->is_open()) - fatal("Cannot open file %s", name); + string filename = resolve(name); + ios_base::openmode mode = + ios::trunc | binary ? ios::binary : (ios::openmode)0; + file = openFile(filename, mode); return file; } @@ -100,21 +138,16 @@ OutputDirectory::create(const string &name, bool binary) ostream * OutputDirectory::find(const string &name) { - if (name == "cerr" || name == "stderr") - return &cerr; - - if (name == "cout" || name == "stdout") - return &cout; + ostream *file = checkForStdio(name); + if (file) + return file; string filename = resolve(name); map_t::iterator i = files.find(filename); if (i != files.end()) return (*i).second; - ofstream *file = new ofstream(filename.c_str(), ios::trunc); - if (!file->is_open()) - fatal("Cannot open file %s", filename); - + file = openFile(filename); files[filename] = file; return file; } diff --git a/src/base/output.hh b/src/base/output.hh index b1d1d7e7d..38c63714c 100644 --- a/src/base/output.hh +++ b/src/base/output.hh @@ -31,7 +31,7 @@ #ifndef __BASE_OUTPUT_HH__ #define __BASE_OUTPUT_HH__ -#include <iosfwd> +#include <ios> #include <map> #include <string> @@ -43,14 +43,19 @@ class OutputDirectory map_t files; std::string dir; - std::string resolve(const std::string &name); + std::string resolve(const std::string &name) const; + + protected: + std::ostream *checkForStdio(const std::string &name) const; + std::ostream *openFile(const std::string &filename, + std::ios_base::openmode mode = std::ios::trunc) const; public: OutputDirectory(); ~OutputDirectory(); void setDirectory(const std::string &dir); - const std::string &directory(); + const std::string &directory() const; std::ostream *create(const std::string &name, bool binary = false); std::ostream *find(const std::string &name); |