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/*
Copyright (C) 2023 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
DCP-o-matic 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "dcpomatic_assert.h"
#include "disk_writer_messages.h"
#include "nanomsg.h"
#include <dcp/raw_convert.h>
#include <fmt/format.h>
using std::string;
using boost::optional;
boost::optional<DiskWriterBackEndResponse>
DiskWriterBackEndResponse::read_from_nanomsg(Nanomsg& nanomsg, int timeout)
{
auto s = nanomsg.receive(timeout);
if (!s) {
return {};
}
if (*s == DISK_WRITER_OK) {
return DiskWriterBackEndResponse::ok();
} else if (*s == DISK_WRITER_ERROR) {
auto const m = nanomsg.receive(500);
auto const n = nanomsg.receive(500);
auto const p = nanomsg.receive(500);
return DiskWriterBackEndResponse::error(m.get_value_or(""), dcp::raw_convert<int>(n.get_value_or("0")), dcp::raw_convert<int>(p.get_value_or("0")));
} else if (*s == DISK_WRITER_PONG) {
return DiskWriterBackEndResponse::pong();
} else if (*s == DISK_WRITER_FORMAT_PROGRESS) {
auto progress = nanomsg.receive(500);
return DiskWriterBackEndResponse::format_progress(dcp::raw_convert<float>(progress.get_value_or("0")));
} else if (*s == DISK_WRITER_COPY_PROGRESS) {
auto progress = nanomsg.receive(500);
return DiskWriterBackEndResponse::copy_progress(dcp::raw_convert<float>(progress.get_value_or("0")));
} else if (*s == DISK_WRITER_VERIFY_PROGRESS) {
auto progress = nanomsg.receive(500);
return DiskWriterBackEndResponse::verify_progress(dcp::raw_convert<float>(progress.get_value_or("0")));
} else {
DCPOMATIC_ASSERT(false);
}
return {};
}
/** @return true if the message was sent, false if there was a timeout */
bool
DiskWriterBackEndResponse::write_to_nanomsg(Nanomsg& nanomsg, int timeout) const
{
string message;
switch (_type)
{
case Type::OK:
message = fmt::format("{}\n", DISK_WRITER_OK);
break;
case Type::ERROR:
message = fmt::format("{}\n{}\n{}\n{}\n", DISK_WRITER_ERROR, _error_message, _ext4_error_number, _platform_error_number);
break;
case Type::PONG:
message = fmt::format("{}\n", DISK_WRITER_PONG);
break;
case Type::FORMAT_PROGRESS:
message = fmt::format("{}\n", DISK_WRITER_FORMAT_PROGRESS);
message += fmt::to_string(_progress) + "\n";
break;
case Type::COPY_PROGRESS:
message = fmt::format("{}\n", DISK_WRITER_COPY_PROGRESS);
message += fmt::to_string(_progress) + "\n";
break;
case Type::VERIFY_PROGRESS:
message = fmt::format("{}\n", DISK_WRITER_VERIFY_PROGRESS);
message += fmt::to_string(_progress) + "\n";
break;
}
return nanomsg.send(message, timeout);
}
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