OGR
cpl_vsil_curl_priv.h
1 /******************************************************************************
2  * $Id: cpl_vsil_curl_priv.h 27044 2014-03-16 23:41:27Z rouault $
3  *
4  * Project: CPL - Common Portability Library
5  * Purpose: Private API for VSICurl
6  * Author: Even Rouault, even.rouault at mines-paris.org
7  *
8  ******************************************************************************
9  * Copyright (c) 2012, Even Rouault <even dot rouault at mines-paris dot org>
10  *
11  * Permission is hereby granted, free of charge, to any person obtaining a
12  * copy of this software and associated documentation files (the "Software"),
13  * to deal in the Software without restriction, including without limitation
14  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15  * and/or sell copies of the Software, and to permit persons to whom the
16  * Software is furnished to do so, subject to the following conditions:
17  *
18  * The above copyright notice and this permission notice shall be included
19  * in all copies or substantial portions of the Software.
20  *
21  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27  * DEALINGS IN THE SOFTWARE.
28  ****************************************************************************/
29 
30 #ifndef CPL_VSIL_CURL_PRIV_H_INCLUDED
31 #define CPL_VSIL_CURL_PRIV_H_INCLUDED
32 
33 #include "cpl_vsi_virtual.h"
34 
35 /* NOTE: this is private API for GDAL internal use. May change without notice. */
36 /* Used by the MBTiles driver for now */
37 
38 /* Return TRUE to go on downloading, FALSE to stop */
39 typedef int (*VSICurlReadCbkFunc) (VSILFILE* fp, void *pabyBuffer, size_t nBufferSize, void* pfnUserData);
40 
41 /* fp must be a VSICurl file handle, otherwise bad things will happen ! */
42 /* bStopOnInterrruptUntilUninstall must be set to TRUE if all downloads */
43 /* must be cancelled after a first one has been stopped by the callback function. */
44 /* In that case, downloads will restart after uninstalling the callback. */
45 int VSICurlInstallReadCbk(VSILFILE* fp, VSICurlReadCbkFunc pfnReadCbk, void* pfnUserData,
46  int bStopOnInterrruptUntilUninstall);
47 int VSICurlUninstallReadCbk(VSILFILE* fp);
48 
49 #endif // CPL_VSIL_CURL_PRIV_H_INCLUDED

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