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+/*
+ * The Mana Client
+ * Copyright (C) 2009-2010 The Mana Developers
+ *
+ * This file is part of The Mana Client.
+ *
+ * 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 2 of the License, or
+ * 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/>.
+ */
+
+
+#ifndef NET_DOWNLOAD_H
+#define NET_DOWNLOAD_H
+
+#include <SDL_types.h>
+
+#include <stdio.h>
+#include <string>
+
+#ifdef __GNUC__
+#define _UNUSED_ __attribute__ ((unused))
+#else
+#define _UNUSED_
+#endif
+
+enum DownloadStatus
+{
+ DOWNLOAD_STATUS_CANCELLED = -3,
+ DOWNLOAD_STATUS_THREAD_ERROR = -2,
+ DOWNLOAD_STATUS_ERROR = -1,
+ DOWNLOAD_STATUS_STARTING = 0,
+ DOWNLOAD_STATUS_IDLE,
+ DOWNLOAD_STATUS_COMPLETE
+};
+
+typedef int (*DownloadUpdate)(void *ptr, DownloadStatus status,
+ size_t total, size_t remaining);
+
+// Matches what CURL expects
+typedef size_t (*WriteFunction)( void *ptr, size_t size, size_t nmemb,
+ void *stream);
+
+struct SDL_Thread;
+typedef void CURL;
+struct curl_slist;
+
+namespace Net
+{
+class Download
+{
+ public:
+ Download(void *ptr, const std::string &url,
+ DownloadUpdate updateFunction, bool ignoreError = false);
+
+ ~Download();
+
+ void addHeader(const std::string &header);
+
+ /**
+ * Convience method for adding no-cache headers.
+ */
+ void noCache();
+
+ void setFile(const std::string &filename, Sint64 adler32 = -1);
+
+ void setWriteFunction(WriteFunction write);
+
+ /**
+ * Starts the download thread.
+ * @returns true if thread was created
+ * false if the thread could not be made or download wasn't
+ * properly setup
+ */
+ bool start();
+
+ /**
+ * Cancels the download. Returns immediately, the cancelled status will
+ * be noted in the next avialable update call.
+ */
+ void cancel();
+
+ char *getError();
+
+ void setIgnoreError(bool n)
+ { mIgnoreError = n; }
+
+ private:
+ static int downloadThread(void *ptr);
+ static int downloadProgress(void *clientp, double dltotal,
+ double dlnow, double ultotal,
+ double ulnow);
+ void *mPtr;
+ std::string mUrl;
+ struct
+ {
+ unsigned cancel : 1;
+ unsigned memoryWrite: 1;
+ unsigned checkAdler: 1;
+ } mOptions;
+ std::string mFileName;
+ WriteFunction mWriteFunction;
+ unsigned long mAdler;
+ DownloadUpdate mUpdateFunction;
+ SDL_Thread *mThread;
+ CURL *mCurl;
+ curl_slist *mHeaders;
+ char *mError;
+ bool mIgnoreError;
+};
+
+} // namespace Net
+
+#endif // NET_DOWNLOAD_H