/* * The ManaPlus Client * Copyright (C) 2009-2010 The Mana Developers * Copyright (C) 2011 The ManaPlus Developers * * This file is part of The ManaPlus 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 A_UNUSED __attribute__ ((unused)) #else #define A_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; } static unsigned long fadler32(FILE *file); 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