Add DiskWriterBackEndResponse.

1 files changed, 60 insertions, 0 deletions

diff --git a/src/lib/disk_writer_messages.cc b/src/lib/disk_writer_messages.cc
new file mode 100644
index 000000000..e42e80ec6
--- /dev/null
+++ b/src/lib/disk_writer_messages.cc
@@ -0,0 +1,60 @@
+/*
+    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"
+
+
+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);
+		return DiskWriterBackEndResponse::error(m.get_value_or(""), dcp::locale_convert<int>(n.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::locale_convert<float>(progress.get_value_or("0")));
+	} else if (*s == DISK_WRITER_COPY_PROGRESS) {
+		auto progress = nanomsg.receive(500);
+		return DiskWriterBackEndResponse::copy_progress(dcp::locale_convert<float>(progress.get_value_or("0")));
+	} else if (*s == DISK_WRITER_VERIFY_PROGRESS) {
+		auto progress = nanomsg.receive(500);
+		return DiskWriterBackEndResponse::verify_progress(dcp::locale_convert<float>(progress.get_value_or("0")));
+	} else {
+		DCPOMATIC_ASSERT(false);
+	}
+
+	return {};
+}
+