* viking -- GPS Data and Topo Analyzer, Explorer, and Manager
*
* Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
+ * Copyright (C) 2007, Guilhem Bonnefille <guilhem.bonnefille@gmail.com>
*
* 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
gboolean a_check_kml_file(FILE*);
typedef struct {
+ /**
+ * Check if the server has a more recent file than the one we have before downloading it
+ * This uses http header If-Modified-Since
+ */
+ gboolean check_file_server_time;
+
+ /**
+ * Set if the server handle ETag
+ */
+ gboolean use_etag;
+
/**
* The REFERER string to use.
* Could be NULL.
* File content checker.
*/
VikFileContentCheckerFunc check_file;
-} DownloadOptions;
+
+} DownloadMapOptions;
+
+typedef struct {
+ /**
+ * Time sent to server on header If-Modified-Since
+ */
+ time_t time_condition;
+ /**
+ * Etag sent by server on previous download
+ */
+ char *etag;
+ /**
+ * Etag sent by server on this download
+ */
+ char *new_etag;
+
+} DownloadFileOptions;
+
+void a_download_init(void);
/* TODO: convert to Glib */
-int a_http_download_get_url ( const char *hostname, const char *uri, const char *fn, DownloadOptions *opt );
-int a_ftp_download_get_url ( const char *hostname, const char *uri, const char *fn, DownloadOptions *opt );
+int a_http_download_get_url ( const char *hostname, const char *uri, const char *fn, DownloadMapOptions *opt, void *handle );
+int a_ftp_download_get_url ( const char *hostname, const char *uri, const char *fn, DownloadMapOptions *opt, void *handle );
+void *a_download_handle_init ();
+void a_download_handle_cleanup ( void *handle );
+
+/* Error messages returned by download functions */
+enum { DOWNLOAD_NO_ERROR = 0,
+ DOWNLOAD_NO_NEWER_FILE,
+ DOWNLOAD_ERROR };
#endif