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make fragmentation_test work with incomplete files as well

This commit is contained in:
Arvid Norberg 2011-05-02 00:30:16 +00:00
parent d9fb877d48
commit ddb70f3f68
1 changed files with 18 additions and 8 deletions
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26
examples/fragmentation_test.cpp
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@ -79,7 +79,7 @@ int main(int argc, char* argv[])
std::vector<std::pair<int, size_type> > pieces;
// make sure all the files are there
std::vector<std::pair<size_type, std::time_t> > files = get_filesizes(ti->files(), argv[2]);
/* std::vector<std::pair<size_type, std::time_t> > files = get_filesizes(ti->files(), argv[2]);
for (int i = 0; i < ti->num_files(); ++i)
{
if (ti->file_at(i).size == files[i].first) continue;
@ -87,20 +87,30 @@ int main(int argc, char* argv[])
, ti->files().file_path(ti->file_at(i)).c_str(), files[i].first, ti->file_at(i).size);
return 1;
}
*/
bool warned = false;
for (int i = 0; i < ti->num_pieces(); ++i)
{
pieces.push_back(std::make_pair(i, st->physical_offset(i, 0)));
if (pieces.back().second == size_type(i) * ti->piece_length())
{
// this suggests that the OS doesn't support physical offset
// or that the file doesn't exist, or some other file error
fprintf(stderr, "Your operating system or filesystem "
"does not appear to support querying physical disk offset\n");
return 1;
// or that the file doesn't exist or is incomplete
if (!warned)
{
fprintf(stderr, "The files are incomplete\n");
warned = true;
}
pieces.pop_back();
}
}
if (pieces.empty())
{
fprintf(stderr, "Your operating system or filesystem "
"does not appear to support querying physical disk offset\n");
}
FILE* f = fopen("fragmentation.log", "w+");
if (f == 0)
{
@ -108,7 +118,7 @@ int main(int argc, char* argv[])
return 1;
}
for (int i = 0; i < ti->num_pieces(); ++i)
for (int i = 0; i < pieces.size(); ++i)
{
fprintf(f, "%d %"PRId64"\n", pieces[i].first, pieces[i].second);
}
@ -131,7 +141,7 @@ int main(int argc, char* argv[])
"set key box\n"
"set title \"fragmentation for '%s'\"\n"
"set tics nomirror\n"
"plot \"fragmentation.log\" using 1:2 with dots lt rgb \"#e07070\" notitle axis x1y1\n"
"plot \"fragmentation.log\" using 1:2 with points lt rgb \"#e07070\" notitle axis x1y1\n"
, ti->name().c_str());
fclose(f);