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remove mmap load and dump

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sunkaicheng
2019-08-25 20:44:41 +08:00
parent 3653f03683
commit 62a1674d94
4 changed files with 1 additions and 497 deletions
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examples/dump_load.cc
-74
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@@ -49,84 +49,10 @@ void dump_load_parallel_flat_hash_map() {
std::cout << "key: " << n.first << ", value: " << n.second << "\n";
}
#if defined(__linux__)
void mmap_load_uint64_uint32() {
using MapType = flat_hash_map<uint64_t, uint32_t,
phmap::container_internal::hash_default_hash<uint64_t>,
phmap::container_internal::hash_default_eq<uint64_t>,
phmap::MmapAllocator<
phmap::container_internal::Pair<const uint64_t, uint32_t>>>;
MapType mp1;
mp1.reserve(100);
phmap::MmapOutputArchive ar_out("./dump.data");
// Add a new entry
mp1[100] = 99;
mp1[300] = 299;
// Iterate and print keys and values
for (const auto& n : mp1)
std::cout << n.first << "'s value is: " << n.second << "\n";
mp1.mmap_dump(ar_out);
MapType mp2;
phmap::MmapInputArchive ar_in("./dump.data");
mp2.mmap_load(ar_in);
mp2[849242] = 141;
mp2[11] = 1111;
// Iterate and print keys and values g|++
for (const auto& n : mp2)
std::cout << n.first << "'s value is: " << n.second << "\n";
}
void mmap_load_parallel_flat_hash_map() {
using MapType = parallel_flat_hash_map<uint64_t, uint32_t,
phmap::container_internal::hash_default_hash<uint64_t>,
phmap::container_internal::hash_default_eq<uint64_t>,
phmap::MmapAllocator<
phmap::container_internal::Pair<const uint64_t, uint32_t>>,
4,
phmap::NullMutex>;
MapType mp1;
phmap::MmapOutputArchive ar_out("./dump.data");
// Add a new entry
mp1[100] = 99;
mp1[300] = 299;
mp1[101] = 992;
mp1[1300] = 2991;
mp1[1130] = 299;
mp1[2130] = 1299;
// Iterate and print
for (const auto& n : mp1)
std::cout << "key: " << n.first << ", value: " << n.second << "\n";
mp1.mmap_dump(ar_out);
MapType mp2;
phmap::MmapInputArchive ar_in("./dump.data");
mp2.mmap_load(ar_in);
std::cout << "[debug] map capacity: " << mp2.capacity() << ", size: " << mp2.size() << std::endl;
for (size_t i = 0; i < 100; i ++) {
mp2[6771 + i] = i;
}
std::cout << "[debug] map capacity: " << mp2.capacity() << ", size: " << mp2.size() << std::endl;
for (const auto& n : mp2)
std::cout << "key: " << n.first << ", value: " << n.second << "\n";
}
#endif
int main()
{
dump_load_uint64_uint32();
dump_load_parallel_flat_hash_map();
#if defined(__linux__)
mmap_load_uint64_uint32();
mmap_load_parallel_flat_hash_map();
#endif
return 0;
}