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# dmxstat.h File Reference

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## Defines
#define | DMX_STAT_LENGTH 10
#define | DMX_STAT_INTERVAL 1000
#define | DMX_STAT_BINS 3
#define | DMX_STAT_BIN0 10000
#define | DMX_STAT_BINMULT 100
## Functions
void | dmxStatActivate (const char *interval, const char *displays)
DMXStatInfo * | dmxStatAlloc (void)
void | dmxStatFree (DMXStatInfo *)
void | dmxStatInit (void)
void | dmxStatSync (DMXScreenInfo *dmxScreen, struct timeval *stop, struct timeval *start, unsigned long pending)
## Variables
int | dmxStatInterval

## Detailed Description

Interface for statistic gathering interface.

See also:
  dmxstat.c

## Define Documentation

#define DMX_STAT_BIN0 10000

| us for bin[0]

#define DMX_STAT_BINMULT 100

| multiplier for next bin[]

#define DMX_STAT_BINS 3

| number of bins

#define DMX_STAT_INTERVAL 1000

| msec between printouts

#define DMX_STAT_LENGTH 10

| number of events for moving average

## Function Documentation

void dmxStatActivate | ( | const char * | interval,
|  | const char * | displays
| ) |

| Turn on XSync statistic gathering and printing. Print every interval seconds, with lines for the first displays. If interval is NULL, 1 will be used. If displays is NULL, 0 will be used (meaning a line for every display will be printed). Note that this function takes string arguments because it will usually be called from ddxProcessArgument in #dmxinit.c.

DMXStatInfo* dmxStatAlloc | ( | void |  | ) |

| Allocate a DMXStatInfo structure.

void dmxStatFree | ( | DMXStatInfo * | pt | ) |

| Free the memory used by a DMXStatInfo structure.

void dmxStatInit | ( | void |  | ) |

| Try to initialize the statistic gathering and printing routines. Initialization only takes place if dmxStatActivate has already been called. We don't need the same generation protection that we used in dmxSyncInit because our timer is always on a queue -- hence, server generation will always free it.

void dmxStatSync | ( | DMXScreenInfo * | dmxScreen,
|  | struct timeval * | stop,
|  | struct timeval * | start,
|  | unsigned long | pending
| ) |

| Note that a XSync() was just done on dmxScreen with the start and stop times (from gettimeofday()) and the number of pending-but-not-yet-processed XSync requests. This routine is called from #dmxDoSync in #dmxsync.c

## Variable Documentation

int dmxStatInterval

| Only for dmxstat.c and dmxsync.c