metermon.c

/* metermon.c */

#include <common.h>

#define SLEEP (500000)

char *cmdsink = "./IPC/SDR-1000-0-commands.fifo",
*mtrsrc = "./IPC/SDR-1000-0-meter.fifo";

FILE *cmdfp, *mtrfp;

int label;
REAL rxm[MAXRX][RXMETERPTS];
REAL txm[TXMETERPTS];

int
main(int argc, char **argv)
{
    int i = 0, j, k, lab = getpid();

    if(!(cmdfp = fopen(cmdsink, "r+"))) perror(cmdsink), exit(1);
    if(!(mtrfp = fopen(mtrsrc, "r+"))) perror(mtrsrc), exit(1);

    fprintf(stderr, "metermon OK\n");

    for (;;)
    {

        usleep(SLEEP);

        fprintf(cmdfp, "reqMeter %d\n", lab);
        fflush(cmdfp);

        if(fread((char *)&label, sizeof(int), 1, mtrfp) != 1) perror("fread meter label"), exit(1);

        if(fread((char *)rxm, sizeof(REAL), MAXRX * RXMETERPTS, mtrfp)
           != MAXRX * RXMETERPTS) perror("fread meter"), exit(1);

        printf("%d <%d>", i++, label);
        for (j = 0; j < MAXRX; j++)
        {
            for (k = 0; k < RXMETERPTS; k++) printf(" %8.3f", rxm[j][k]);
            putchar('\n');
        }

        if(fread((char *)txm, sizeof(REAL), TXMETERPTS, mtrfp)
           != TXMETERPTS) perror("fread meter"), exit(1);

        printf("%d\n", i++);
        for (k = 0; k < TXMETERPTS; k++) printf(" %8.3f", txm[k]);
        putchar('\n');
    }

    fclose(cmdfp);
    fclose(mtrfp);

    exit(0);
}