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1 office 1 /**
2 * @file NCDUdevCache.h
3 * @author Ambroz Bizjak <ambrop7@gmail.com>
4 *
5 * @section LICENSE
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the author nor the
15 * names of its contributors may be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29  
30 #ifndef BADVPN_UDEVMONITOR_NCDUDEVCACHE_H
31 #define BADVPN_UDEVMONITOR_NCDUDEVCACHE_H
32  
33 #include <misc/debug.h>
34 #include <structure/BAVL.h>
35 #include <structure/LinkedList1.h>
36 #include <base/DebugObject.h>
37 #include <stringmap/BStringMap.h>
38  
39 struct NCDUdevCache_device {
40 BStringMap map;
41 const char *devpath;
42 int is_cleaned;
43 union {
44 BAVLNode devices_tree_node;
45 LinkedList1Node cleaned_devices_list_node;
46 };
47 int is_refreshed;
48 };
49  
50 typedef struct {
51 BAVL devices_tree;
52 LinkedList1 cleaned_devices_list;
53 DebugObject d_obj;
54 } NCDUdevCache;
55  
56 void NCDUdevCache_Init (NCDUdevCache *o);
57 void NCDUdevCache_Free (NCDUdevCache *o);
58 const BStringMap * NCDUdevCache_Query (NCDUdevCache *o, const char *devpath);
59 int NCDUdevCache_Event (NCDUdevCache *o, BStringMap map) WARN_UNUSED;
60 void NCDUdevCache_StartClean (NCDUdevCache *o);
61 void NCDUdevCache_FinishClean (NCDUdevCache *o);
62 int NCDUdevCache_GetCleanedDevice (NCDUdevCache *o, BStringMap *out_map);
63 const char * NCDUdevCache_First (NCDUdevCache *o);
64 const char * NCDUdevCache_Next (NCDUdevCache *o, const char *key);
65  
66 #endif