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# data_buf.h

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    00001
    00002 /*
    00003  *   THIS FILE IS UNDER RCS - DO NOT MODIFY UNLESS YOU HAVE
    00004  *   CHECKED IT OUT USING THE COMMAND CHECKOUT.
    00005  *
    00006  *    $Id: data__buf_8h-source.html,v 1.1 2006/05/19 16:55:01 paulf Exp $
    00007  *
    00008  *    Revision history:
    00009  *     $Log: data__buf_8h-source.html,v $
    00009  *     Revision 1.1  2006/05/19 16:55:01  paulf
    00009  *     first inclusion
    00009  *
    00010  *     Revision 1.1  2000/02/14 20:05:54  lucky
    00011  *     Initial revision
    00012  *
    00013  *
    00014  */
    00015
    00016 #ifndef DATA_BUF_H
    00017 #define DATA_BUF_H
    00018 /*
    00019 File DATA_BUF.H
    00020
    00021 EARTHWORM PROJECT
    00022 2/9/93
    00023 5/95 modified to include pin numbers
    00024
    00025 Header file containing Waveform Data Buffer Format
    00026
    00027 Background:
    00028
    00029 In earthworm, there are global parameter files which all modules
    00030 will have access to.  The Data Source parameter file will contain the
    00031                 channel-station name/component association,
    00032                 skew,
    00033                 data sample format code,
    00034                 and other relevant parameters of the data source.
    00035
    00036
    00037 Waveform Data Buffer Header
    00038
    00039 Time Stamp                              Two 4 byte words - first=the number
    00040                                         of seconds since some specified date.
    00041                                         second=the no. of microseconds past
    00042                                         the last second.
    00043 Scan Count of first scan of buffer      4 bytes
    00044 Series                                  2 bytes -  incremented each time
    00045                                         a data source is started.
    00046 Digitization Rate                       Two 2 byte integers -
    00047                                         first integer = length of standard
    00048                                         interval in seconds
    00049                                         second integer = the number of samples
    00050                                         per interval.
    00051 Data Source Module ID                   byte
    00052 Error Byte                              byte
    00053 No of Channels                          2 bytes
    00054 No of scans per buffer                  2 bytes
    00055 Network Identifier                      2 bytes
    00056
    00057
    00058 Header is followed by nchan pin numbers, expressed as two-byte integers.
    00059 The waveform data, in multiplexed format, follows the pin numbers.
    00060 */
    00061
    00062 /* This defines the message type
    00063   ******************************/
    00064 #define MSG_TYPE_TRACE_DATA 1
    00065
    00066 typedef struct {
    00067    long           tssec;       /* Time stamp - seconds */
    00068    long           tsmic;       /* Time stamp - microsecs past the last sec */
    00069    unsigned long  first_scan;  /* Number of first scan in buffer */
    00070    short          series;      /* Incremented each time data source starts */
    00071    short          sample_dt;   /* Length of standard interval in seconds */
    00072    short          nsample;     /* Number of samples per this interval */
    00073    char           mod_id;      /* Data source module id */
    00074    char           padding;
    00075    unsigned short errors;      /* Error word */
    00076    short          nchan;       /* Number of channels */
    00077    short          nscan;       /* Number of scans per buffer */
    00078    short          netid;       /* Network identifier */
    00079 } WF_HEADER;
    00080
    00081 /* Below are bits to be set in the error word
    00082    ******************************************/
    00083 #define AD_TIME_BAD    1
    00084 #define AD_GUIDE1_BAD  2
    00085 #define AD_GUIDE2_BAD  4
    00086 #define AD_GUIDE3_BAD  8
    00087 #define AD_GUIDE4_BAD  16
    00088 #define AD_DKWRERR     32
    00089 #define AD_NI_ERR      64
    00090 #define AD_NEW_YEAR    128
    00091
    00092 #endif