diff options
| -rw-r--r-- | qemu-io.c | 39 |
1 files changed, 39 insertions, 0 deletions
@@ -1443,6 +1443,44 @@ static const cmdinfo_t alloc_cmd = { }; static int +map_f(int argc, char **argv) +{ + int64_t offset; + int64_t nb_sectors; + char s1[64]; + int num, num_checked; + int ret; + const char *retstr; + + offset = 0; + nb_sectors = bs->total_sectors; + + do { + num_checked = MIN(nb_sectors, INT_MAX); + ret = bdrv_is_allocated(bs, offset, num_checked, &num); + retstr = ret ? " allocated" : "not allocated"; + cvtstr(offset << 9ULL, s1, sizeof(s1)); + printf("[% 24" PRId64 "] % 8d/% 8d sectors %s at offset %s (%d)\n", + offset << 9ULL, num, num_checked, retstr, s1, ret); + + offset += num; + nb_sectors -= num; + } while(offset < bs->total_sectors); + + return 0; +} + +static const cmdinfo_t map_cmd = { + .name = "map", + .argmin = 0, + .argmax = 0, + .cfunc = map_f, + .args = "", + .oneline = "prints the allocated areas of a file", +}; + + +static int close_f(int argc, char **argv) { bdrv_close(bs); @@ -1680,6 +1718,7 @@ int main(int argc, char **argv) add_command(&length_cmd); add_command(&info_cmd); add_command(&alloc_cmd); + add_command(&map_cmd); add_args_command(init_args_command); add_check_command(init_check_command); |