Beispiel #1
0
static int write_f(int argc, char **argv)
{
    struct timeval t1, t2;
    int Cflag = 0, pflag = 0, qflag = 0, bflag = 0, Pflag = 0, zflag = 0;
    int cflag = 0;
    int c, cnt;
    char *buf = NULL;
    int64_t offset;
    int count;
    /* Some compilers get confused and warn if this is not initialized.  */
    int total = 0;
    int pattern = 0xcd;

    while ((c = getopt(argc, argv, "bcCpP:qz")) != EOF) {
        switch (c) {
        case 'b':
            bflag = 1;
            break;
        case 'c':
            cflag = 1;
            break;
        case 'C':
            Cflag = 1;
            break;
        case 'p':
            pflag = 1;
            break;
        case 'P':
            Pflag = 1;
            pattern = parse_pattern(optarg);
            if (pattern < 0) {
                return 0;
            }
            break;
        case 'q':
            qflag = 1;
            break;
        case 'z':
            zflag = 1;
            break;
        default:
            return command_usage(&write_cmd);
        }
    }

    if (optind != argc - 2) {
        return command_usage(&write_cmd);
    }

    if (bflag + pflag + zflag > 1) {
        printf("-b, -p, or -z cannot be specified at the same time\n");
        return 0;
    }

    if (zflag && Pflag) {
        printf("-z and -P cannot be specified at the same time\n");
        return 0;
    }

    offset = cvtnum(argv[optind]);
    if (offset < 0) {
        printf("non-numeric length argument -- %s\n", argv[optind]);
        return 0;
    }

    optind++;
    count = cvtnum(argv[optind]);
    if (count < 0) {
        printf("non-numeric length argument -- %s\n", argv[optind]);
        return 0;
    }

    if (!pflag) {
        if (offset & 0x1ff) {
            printf("offset %" PRId64 " is not sector aligned\n",
                   offset);
            return 0;
        }

        if (count & 0x1ff) {
            printf("count %d is not sector aligned\n",
                   count);
            return 0;
        }
    }

    if (!zflag) {
        buf = qemu_io_alloc(count, pattern);
    }

    gettimeofday(&t1, NULL);
    if (pflag) {
        cnt = do_pwrite(buf, offset, count, &total);
    } else if (bflag) {
        cnt = do_save_vmstate(buf, offset, count, &total);
    } else if (zflag) {
        cnt = do_co_write_zeroes(offset, count, &total);
    } else if (cflag) {
        cnt = do_write_compressed(buf, offset, count, &total);
    } else {
        cnt = do_write(buf, offset, count, &total);
    }
    gettimeofday(&t2, NULL);

    if (cnt < 0) {
        printf("write failed: %s\n", strerror(-cnt));
        goto out;
    }

    if (qflag) {
        goto out;
    }

    /* Finally, report back -- -C gives a parsable format */
    t2 = tsub(t2, t1);
    print_report("wrote", &t2, offset, count, total, cnt, Cflag);

out:
    if (!zflag) {
        qemu_io_free(buf);
    }

    return 0;
}
Beispiel #2
0
static int
write_f(int argc, char **argv)
{
	struct timeval t1, t2;
	int Cflag = 0, pflag = 0, qflag = 0, bflag = 0;
	int c, cnt;
	char *buf;
	int64_t offset;
	int count;
        
        int total = 0;
	int pattern = 0xcd;

	while ((c = getopt(argc, argv, "bCpP:q")) != EOF) {
		switch (c) {
		case 'b':
			bflag = 1;
			break;
		case 'C':
			Cflag = 1;
			break;
		case 'p':
			pflag = 1;
			break;
		case 'P':
			pattern = parse_pattern(optarg);
			if (pattern < 0)
				return 0;
			break;
		case 'q':
			qflag = 1;
			break;
		default:
			return command_usage(&write_cmd);
		}
	}

	if (optind != argc - 2)
		return command_usage(&write_cmd);

	if (bflag && pflag) {
		printf("-b and -p cannot be specified at the same time\n");
		return 0;
	}

	offset = cvtnum(argv[optind]);
	if (offset < 0) {
		printf("non-numeric length argument -- %s\n", argv[optind]);
		return 0;
	}

	optind++;
	count = cvtnum(argv[optind]);
	if (count < 0) {
		printf("non-numeric length argument -- %s\n", argv[optind]);
		return 0;
	}

	if (!pflag) {
		if (offset & 0x1ff) {
                        printf("offset %" PRId64 " is not sector aligned\n",
                               offset);
			return 0;
		}

		if (count & 0x1ff) {
			printf("count %d is not sector aligned\n",
				count);
			return 0;
		}
	}

	buf = qemu_io_alloc(count, pattern);

	gettimeofday(&t1, NULL);
	if (pflag)
		cnt = do_pwrite(buf, offset, count, &total);
	else if (bflag)
		cnt = do_save_vmstate(buf, offset, count, &total);
	else
		cnt = do_write(buf, offset, count, &total);
	gettimeofday(&t2, NULL);

	if (cnt < 0) {
		printf("write failed: %s\n", strerror(-cnt));
		goto out;
	}

	if (qflag)
		goto out;

	
	t2 = tsub(t2, t1);
	print_report("wrote", &t2, offset, count, total, cnt, Cflag);

out:
	qemu_io_free(buf);

	return 0;
}