bar.c

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#include "config.h"

#include "headers.h"
#include "types.h"
#include "error.h"
#include "fd.h"
#include "io.h"
#include "display.h"
#include "args.h"

/** \mainpage Command Line Progress Bar

Bar is a simple tool to copy a stream of data from input to output while
displaying for the user:

\li The amount of data passed
\li The throughput of the data transfer

and, if the total size of the data stream is known:

\li The estimated time remaining
\li What percent of the data stream has been copied
\li A progress bar

Bar was originally written for the purpose of estimating the amount of time
needed to transfer large amounts (many, many gigabytes) of data across a
network in a tar/ssh pipe.

*/

int main(int argc, char *argv[])
{
        int rval = 0;
#ifdef DEBUG
        int debug = 1;

        fprintf(stderr, "Waiting for debugger to attach...\n");
        while (debug);
#endif
        if (ioInit() != 0) return(1);
        if (displayInit() != 0) return(1);
        if (parse_rcfiles(stderr) != 0) return(1);
        if (parse_args(stderr, argc, argv) != 0) return(1);
        if (ioBegin() != 0) return(1);
        if (displayBegin() != 0) return(1);

        while (!ioIsDone()) {
                ioCheck();
                if (ioRead() < 0) {
                        print_error(stderr, "read error");
                        rval = 1;
                        break;
                }
                if (ioWrite() < 0) {
                        print_error(stderr, "write error");
                        rval = 1;
                        break;
                }
                displayUpdate();
        }

        displayEnd();
        ioEnd();
        return(rval);
}

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