xref: /OK3568_Linux_fs/external/xserver/hw/dmx/dmxstat.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1 /*
2  * Copyright 2002 Red Hat Inc., Durham, North Carolina.
3  *
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining
7  * a copy of this software and associated documentation files (the
8  * "Software"), to deal in the Software without restriction, including
9  * without limitation on the rights to use, copy, modify, merge,
10  * publish, distribute, sublicense, and/or sell copies of the Software,
11  * and to permit persons to whom the Software is furnished to do so,
12  * subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the
15  * next paragraph) shall be included in all copies or substantial
16  * portions of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21  * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
22  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
23  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25  * SOFTWARE.
26  */
27 
28 /*
29  * Authors:
30  *   Rickard E. (Rik) Faith <faith@redhat.com>
31  *
32  */
33 
34 /** \file
35  * Interface for statistic gathering interface. \see dmxstat.c */
36 
37 #ifndef _DMXSTAT_H_
38 #define _DMXSTAT_H_
39 
40 #define DMX_STAT_LENGTH     10  /**< number of events for moving average */
41 #define DMX_STAT_INTERVAL 1000  /**< msec between printouts */
42 #define DMX_STAT_BINS        3  /**< number of bins */
43 #define DMX_STAT_BIN0    10000  /**< us for bin[0] */
44 #define DMX_STAT_BINMULT   100  /**< multiplier for next bin[] */
45 
46 extern int dmxStatInterval;         /**< Only for dmxstat.c and dmxsync.c */
47 extern void dmxStatActivate(const char *interval, const char *displays);
48 extern DMXStatInfo *dmxStatAlloc(void);
49 extern void dmxStatFree(DMXStatInfo *);
50 extern void dmxStatInit(void);
51 extern void dmxStatSync(DMXScreenInfo * dmxScreen,
52                         struct timeval *stop, struct timeval *start,
53                         unsigned long pending);
54 
55 #endif
56