diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Makefile.am | 3 | ||||
| -rw-r--r-- | src/bytesizeparser.cc | 99 | ||||
| -rw-r--r-- | src/bytesizeparser.h | 33 |
3 files changed, 135 insertions, 0 deletions
diff --git a/src/Makefile.am b/src/Makefile.am index 2277eeb..06e189f 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -17,6 +17,7 @@ nodist_libdg_la_SOURCES = \ audiocacheidmanager.cc \ audioinputenginemidi.cc \ audiofile.cc \ + bytesizeparser.cc \ channel.cc \ channelmixer.cc \ chresampler.cc \ @@ -57,6 +58,7 @@ EXTRA_DIST = \ audioinputenginemidi.h \ audiooutputengine.h \ beatmapper.h \ + bytesizeparser.h \ channel.h \ channelmixer.h \ chresampler.h \ @@ -102,6 +104,7 @@ EXTRA_DIST = \ audioinputenginemidi.cc \ audiooutputengine.cc \ beatmapper.cc \ + bytesizeparser.cc \ channel.cc \ channelmixer.cc \ chresampler.cc \ diff --git a/src/bytesizeparser.cc b/src/bytesizeparser.cc new file mode 100644 index 0000000..0bab316 --- /dev/null +++ b/src/bytesizeparser.cc @@ -0,0 +1,99 @@ +/* -*- Mode: c++ -*- */ +/*************************************************************************** + * bytesize_parser.cc + * + * Sat Mar 4 18:00:12 CET 2017 + * Copyright 2017 Goran Mekić + * meka@tilda.center + ****************************************************************************/ + +/* + * This file is part of DrumGizmo. + * + * DrumGizmo 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 3 of the License, or + * (at your option) any later version. + * + * DrumGizmo 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 DrumGizmo; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#include "bytesizeparser.h" +#include <iostream> +#include <stdexcept> + + +static std::size_t suffixToSize(const char& suffix) +{ + int size = 1; + switch(suffix) + { + case 'k': + size <<= 10; + break; + case 'M': + size <<= 20; + break; + case 'G': + size <<= 30; + break; + default: + size = 0; + break; + } + return size; +} + + +std::size_t byteSizeParser(const std::string& argument) +{ + std::string::size_type suffix_index; + std::size_t stream_size; + std::string suffix; + bool error = false; + + try + { + stream_size = std::stoi(argument, &suffix_index); + } + catch(std::invalid_argument) + { + std::cerr << "Invalid option for diskstreamsize" << std::endl; + error = true; + } + catch(std::out_of_range) + { + std::cerr << "Number too big. Try using bigger suffix for diskstreamsize" << std::endl; + error = true; + } + if(!error) + { + suffix = argument.substr(suffix_index); + if (suffix.length() > 1) + { + error = true; + } + } + if(!error) + { + std::size_t suffix_size = suffixToSize(suffix[0]); + if (suffix_size) + { + stream_size *= suffix_size; + } + } + if(error) + { + std::cerr << "Stream size should be in <number>[suffix] format "; + std::cerr << "where [suffix] is k, M, or G." << std::endl; + std::cerr << "Example: 10M which is 10 * 1024 * 1024 bytes" << std::endl; + return 0; + } + return stream_size; +} diff --git a/src/bytesizeparser.h b/src/bytesizeparser.h new file mode 100644 index 0000000..3007454 --- /dev/null +++ b/src/bytesizeparser.h @@ -0,0 +1,33 @@ +/* -*- Mode: c++ -*- */ +/*************************************************************************** + * bytesize_parser.h + * + * Sat Mar 4 18:00:12 CET 2017 + * Copyright 2017 Goran Mekić + * meka@tilda.center + ****************************************************************************/ + +/* + * This file is part of DrumGizmo. + * + * DrumGizmo 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 3 of the License, or + * (at your option) any later version. + * + * DrumGizmo 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 DrumGizmo; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#pragma once +#include <string> + + +//! Returns size in bytes +//! \param argument The size in n{k,M,G} format +std::size_t byteSizeParser(const std::string& argument); |