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/***************************************************************************
* msview.c
*
* A simple example of using libmseed.
*
* Opens a user specified file, parses the Mini-SEED records and prints
* details for each record.
*
* Written by Chad Trabant, ORFEUS/EC-Project MEREDIAN
*
* modified 2016.233
***************************************************************************/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#ifndef WIN32
#include <signal.h>
static void term_handler (int sig);
#endif
#include <libmseed.h>
#define VERSION "[libmseed " LIBMSEED_VERSION " example]"
#define PACKAGE "msview"
static flag verbose = 0;
static flag ppackets = 0;
static flag basicsum = 0;
static int printdata = 0;
static int reclen = -1;
static char *inputfile = 0;
static int parameter_proc (int argcount, char **argvec);
static void usage (void);
static void term_handler (int sig);
int
main (int argc, char **argv)
{
MSRecord *msr = 0;
int64_t totalrecs = 0;
int64_t totalsamps = 0;
int retcode;
#ifndef WIN32
/* Signal handling, use POSIX calls with standardized semantics */
struct sigaction sa;
sa.sa_flags = SA_RESTART;
sigemptyset (&sa.sa_mask);
sa.sa_handler = term_handler;
sigaction (SIGINT, &sa, NULL);
sigaction (SIGQUIT, &sa, NULL);
sigaction (SIGTERM, &sa, NULL);
sa.sa_handler = SIG_IGN;
sigaction (SIGHUP, &sa, NULL);
sigaction (SIGPIPE, &sa, NULL);
#endif
/* Process given parameters (command line and parameter file) */
if (parameter_proc (argc, argv) < 0)
return -1;
/* Loop over the input file */
while ((retcode = ms_readmsr (&msr, inputfile, reclen, NULL, NULL, 1,
printdata, verbose)) == MS_NOERROR)
{
totalrecs++;
totalsamps += msr->samplecnt;
msr_print (msr, ppackets);
if (printdata && msr->numsamples > 0)
{
int line, col, cnt, samplesize;
int lines = (msr->numsamples / 6) + 1;
void *sptr;
if ((samplesize = ms_samplesize (msr->sampletype)) == 0)
{
ms_log (2, "Unrecognized sample type: '%c'\n", msr->sampletype);
}
for (cnt = 0, line = 0; line < lines; line++)
{
for (col = 0; col < 6; col++)
{
if (cnt < msr->numsamples)
{
sptr = (char *)msr->datasamples + (cnt * samplesize);
if (msr->sampletype == 'i')
ms_log (0, "%10d ", *(int32_t *)sptr);
else if (msr->sampletype == 'f')
ms_log (0, "%10.8g ", *(float *)sptr);
else if (msr->sampletype == 'd')
ms_log (0, "%10.10g ", *(double *)sptr);
cnt++;
}
}
ms_log (0, "\n");
/* If only printing the first 6 samples break out here */
if (printdata == 1)
break;
}
}
}
if (retcode != MS_ENDOFFILE)
ms_log (2, "Cannot read %s: %s\n", inputfile, ms_errorstr (retcode));
/* Make sure everything is cleaned up */
ms_readmsr (&msr, NULL, 0, NULL, NULL, 0, 0, 0);
if (basicsum)
ms_log (1, "Records: %" PRId64 ", Samples: %" PRId64 "\n",
totalrecs, totalsamps);
return 0;
} /* End of main() */
/***************************************************************************
* parameter_proc():
* Process the command line parameters.
*
* Returns 0 on success, and -1 on failure
***************************************************************************/
static int
parameter_proc (int argcount, char **argvec)
{
int optind;
/* Process all command line arguments */
for (optind = 1; optind < argcount; optind++)
{
if (strcmp (argvec[optind], "-V") == 0)
{
ms_log (1, "%s version: %s\n", PACKAGE, VERSION);
exit (0);
}
else if (strcmp (argvec[optind], "-h") == 0)
{
usage ();
exit (0);
}
else if (strncmp (argvec[optind], "-v", 2) == 0)
{
verbose += strspn (&argvec[optind][1], "v");
}
else if (strncmp (argvec[optind], "-p", 2) == 0)
{
ppackets += strspn (&argvec[optind][1], "p");
}
else if (strncmp (argvec[optind], "-d", 2) == 0)
{
printdata = 1;
}
else if (strncmp (argvec[optind], "-D", 2) == 0)
{
printdata = 2;
}
else if (strcmp (argvec[optind], "-s") == 0)
{
basicsum = 1;
}
else if (strcmp (argvec[optind], "-r") == 0)
{
reclen = atoi (argvec[++optind]);
}
else if (strncmp (argvec[optind], "-", 1) == 0 &&
strlen (argvec[optind]) > 1)
{
ms_log (2, "Unknown option: %s\n", argvec[optind]);
exit (1);
}
else if (inputfile == 0)
{
inputfile = argvec[optind];
}
else
{
ms_log (2, "Unknown option: %s\n", argvec[optind]);
exit (1);
}
}
/* Make sure an inputfile was specified */
if (!inputfile)
{
ms_log (2, "No input file was specified\n\n");
ms_log (1, "%s version %s\n\n", PACKAGE, VERSION);
ms_log (1, "Try %s -h for usage\n", PACKAGE);
exit (1);
}
/* Report the program version */
if (verbose)
ms_log (1, "%s version: %s\n", PACKAGE, VERSION);
return 0;
} /* End of parameter_proc() */
/***************************************************************************
* usage():
* Print the usage message and exit.
***************************************************************************/
static void
usage (void)
{
fprintf (stderr, "%s version: %s\n\n", PACKAGE, VERSION);
fprintf (stderr, "Usage: %s [options] file\n\n", PACKAGE);
fprintf (stderr,
" ## Options ##\n"
" -V Report program version\n"
" -h Show this usage message\n"
" -v Be more verbose, multiple flags can be used\n"
" -p Print details of header, multiple flags can be used\n"
" -d Print first 6 sample values\n"
" -D Print all sample values\n"
" -s Print a basic summary after processing a file\n"
" -r bytes Specify record length in bytes, required if no Blockette 1000\n"
"\n"
" file File of Mini-SEED records\n"
"\n");
} /* End of usage() */
#ifndef WIN32
/***************************************************************************
* term_handler:
* Signal handler routine.
***************************************************************************/
static void
term_handler (int sig)
{
exit (0);
}
#endif
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