2 * This file is part of the PulseView project.
4 * Copyright (C) 2015 Joel Holdsworth <joel@airwebreathe.org.uk>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "inputfile.hpp"
31 const std::streamsize InputFile::BufferSize = 16384;
33 InputFile::InputFile(const std::shared_ptr<sigrok::Context> &context,
34 const std::string &file_name,
35 std::shared_ptr<sigrok::InputFormat> format,
36 const std::map<std::string, Glib::VariantBase> &options) :
45 void InputFile::open()
50 session_ = context_->create_session();
52 input_ = format_->create_input(options_);
55 throw QString("Failed to create input");
57 // open() should add the input device to the session but
58 // we can't open the device without sending some data first
59 f = new std::ifstream(file_name_, std::ios::binary);
61 char buffer[BufferSize];
62 f->read(buffer, BufferSize);
63 const std::streamsize size = f->gcount();
67 input_->send(buffer, size);
70 device_ = input_->device();
71 } catch (sigrok::Error) {
75 session_->add_device(device_);
78 void InputFile::close()
81 session_->remove_devices();
84 void InputFile::start()
90 char buffer[BufferSize];
93 // Previous call to run() processed the entire file already
94 f = new std::ifstream(file_name_, std::ios::binary);
99 while (!interrupt_ && !f->eof()) {
100 f->read(buffer, BufferSize);
101 const std::streamsize size = f->gcount();
105 input_->send(buffer, size);
107 if (size != BufferSize)
117 void InputFile::stop()
122 } // namespace devices