osmium::object_id_type CommandRenumber::lookup(osmium::item_type type, osmium::object_id_type id) {
try {
return index(type).at(id);
} catch (std::out_of_range&) {
index(type)[id] = ++last_id(type);
return last_id(type);
}
}
void CommandRenumber::read_index(osmium::item_type type, const std::string& name) {
std::string f { filename(name) };
int fd = ::open(f.c_str(), O_RDONLY);
if (fd < 0) {
// if the file is not there we don't have to read anything and can return
if (errno == ENOENT) {
return;
}
throw std::runtime_error(std::string("Can't open file '") + f + "': " + strerror(errno));
}
size_t file_size = osmium::util::file_size(fd);
if (file_size % sizeof(remap_index_value_type) != 0) {
throw std::runtime_error(std::string("index file '") + f + "' has wrong file size");
}
{
osmium::util::TypedMemoryMapping<remap_index_value_type> mapping(file_size / sizeof(remap_index_value_type), false, fd);
std::copy(mapping.begin(), mapping.end(), std::inserter(index(type), index(type).begin()));
last_id(type) = std::max_element(mapping.begin(),
mapping.end(),
[](const remap_index_value_type& a,
const remap_index_value_type& b) {
return a.second < b.second;
}
)->second;
}
close(fd);
}
TEST_F(BlStore_Test, InConsistency_Test) {
// Adding blocks
{
std::vector<uint8_t> block(1000, 5);
auto bl_store = FlatFile::create(block_store_path);
ASSERT_TRUE(bl_store);
// Adding three blocks
auto id = 1u;
bl_store->add(id, block);
auto id2 = 2u;
bl_store->add(id2, block);
auto id3 = 3u;
bl_store->add(id3, block);
auto res = bl_store->get(id);
ASSERT_TRUE(res);
ASSERT_FALSE(res->empty());
ASSERT_EQ(*res, block);
}
// Simulate removal of the block
{
// Remove file in the middle of the block store
std::remove((block_store_path + "/0000000000000002").c_str());
std::vector<uint8_t> block(1000, 5);
auto bl_store = FlatFile::create(block_store_path);
ASSERT_TRUE(bl_store);
auto res = bl_store->last_id();
// Must return 1
ASSERT_EQ(res, 1);
}
}
void MxHeap::insert(MxHeapable *t, float v)
{
t->heap_key(v);
add(t);
unsigned int i = last_id();
t->set_heap_pos(i);
upheap(i);
}
