Initial commit

engines/ags/engine/debugging/file_based_ags_debugger.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "ags/engine/debugging/file_based_ags_debugger.h"
+#include "ags/shared/util/file.h"
+#include "ags/shared/util/path.h"
+#include "ags/shared/util/stream.h"
+#include "ags/shared/util/text_stream_writer.h"
+#include "ags/engine/platform/base/ags_platform_driver.h"
+#include "ags/globals.h"
+
+namespace AGS3 {
+
+using namespace AGS::Shared;
+
+const char *SENT_MESSAGE_FILE_NAME = "dbgrecv.tmp";
+
+bool FileBasedAGSDebugger::Initialize() {
+	if (File::IsFile(SENT_MESSAGE_FILE_NAME)) {
+		File::DeleteFile(SENT_MESSAGE_FILE_NAME);
+	}
+	return true;
+}
+
+void FileBasedAGSDebugger::Shutdown() {
+}
+
+bool FileBasedAGSDebugger::SendMessageToEditor(const char *message) {
+	while (File::IsFile(SENT_MESSAGE_FILE_NAME)) {
+		_G(platform)->YieldCPU();
+	}
+
+	Stream *out = Shared::File::CreateFile(SENT_MESSAGE_FILE_NAME);
+	// CHECKME: originally the file was opened as "wb" for some reason,
+	// which means the message should be written as a binary array;
+	// or shouldn't it?
+	out->Write(message, strlen(message));
+	delete out;
+	return true;
+}
+
+bool FileBasedAGSDebugger::IsMessageAvailable() {
+	return (File::IsFile("dbgsend.tmp") != 0);
+}
+
+char *FileBasedAGSDebugger::GetNextMessage() {
+	Stream *in = Shared::File::OpenFileRead("dbgsend.tmp");
+	if (in == nullptr) {
+		// check again, because the editor might have deleted the file in the meantime
+		return nullptr;
+	}
+	soff_t fileSize = in->GetLength();
+	char *msg = (char *)malloc(fileSize + 1);
+	in->Read(msg, fileSize);
+	delete in;
+	File::DeleteFile("dbgsend.tmp");
+	msg[fileSize] = 0;
+	return msg;
+}
+
+} // namespace AGS3