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rocksdb/thrift/test/simpletest.cpp

213 lines
5.8 KiB

/**
* Tests for Thrift server for leveldb
* @author Dhruba Borthakur (dhruba@gmail.com)
* Copyright 2012 Facebook
*/
#include <protocol/TBinaryProtocol.h>
#include <transport/TSocket.h>
#include <transport/TBufferTransports.h>
#include <DB.h>
#include <leveldb_types.h>
using namespace apache::thrift;
using namespace apache::thrift::protocol;
using namespace apache::thrift::transport;
using boost::shared_ptr;
using namespace Tleveldb;
extern "C" void startServer(int port);
extern "C" void stopServer(int port);
static DBHandle dbhandle;
static DBClient* dbclient;
static const Text dbname = "/tmp/leveldb/test";
static const int myport = 9091;
static pthread_t serverThread;
static void createDatabase() {
DBOptions options;
options.create_if_missing = true; // create
options.error_if_exists = false; // overwrite
options.write_buffer_size = (4<<20); // 4 MB
options.max_open_files = 1000;
options.block_size = 4096;
options.block_restart_interval = 16;
options.compression = kSnappyCompression;
// create the database
dbclient->Open(dbhandle, dbname, options);
}
static void testClient(int port) {
boost::shared_ptr<TSocket> socket(new TSocket("localhost", port));
boost::shared_ptr<TTransport> transport(new TBufferedTransport(socket));
boost::shared_ptr<TProtocol> protocol(new TBinaryProtocol(transport));
WriteOptions writeOptions;
// open database
dbclient = new DBClient(protocol);
transport->open();
createDatabase();
printf("Database created.\n");
// insert record into leveldb
Slice key;
key.data = "Key1";
key.size = 4;
Slice value;
value.data = "value1";
value.size = 6;
kv keyvalue;
keyvalue.key = key;
keyvalue.value = value;
int ret = dbclient->Put(dbhandle, keyvalue, writeOptions);
assert(ret == Code::kOk);
printf("Put Key1 suceeded.\n");
//read it back
ReadOptions readOptions;
ResultItem rValue;
dbclient->Get(rValue, dbhandle, key, readOptions);
assert(rValue.status == Code::kOk);
assert(value.data.compare(rValue.value.data) == 0);
assert(value.size == rValue.value.size);
printf("Get suceeded.\n");
// get a snapshot
ResultSnapshot rsnap;
dbclient->GetSnapshot(rsnap, dbhandle);
assert(rsnap.status == Code::kOk);
assert(rsnap.snapshot.snapshotid > 0);
printf("Snapshot suceeded.\n");
// insert a new record into leveldb
Slice key2;
key2.data = "Key2";
key2.size = 4;
Slice value2;
value2.data = "value2";
value2.size = 6;
keyvalue.key = key2;
keyvalue.value = value2;
ret = dbclient->Put(dbhandle, keyvalue, writeOptions);
assert(ret == Code::kOk);
printf("Put Key2 suceeded.\n");
// verify that a get done with a previous snapshot does not find Key2
readOptions.snapshot = rsnap.snapshot;
dbclient->Get(rValue, dbhandle, key2, readOptions);
assert(rValue.status == Code::kNotFound);
printf("Get with snapshot succeeded.\n");
// release snapshot
ret = dbclient->ReleaseSnapshot(dbhandle, rsnap.snapshot);
assert(ret == Code::kOk);
printf("Snapshot released.\n");
// if we try to re-release the same snapshot, it should fail
ret = dbclient->ReleaseSnapshot(dbhandle, rsnap.snapshot);
assert(ret == Code::kNotFound);
// compact whole database
Slice range;
range.size = 0;
ret = dbclient->CompactRange(dbhandle, range, range);
assert(ret == Code::kOk);
printf("Compaction trigger suceeded.\n");
// create a new iterator to scan all keys from the start
Slice target;
ResultIterator ri;
readOptions.snapshot.snapshotid = 0;
dbclient->NewIterator(ri, dbhandle, readOptions,
IteratorType::seekToFirst, target);
assert(ri.status == Code::kOk);
int foundPairs = 0;
while (true) {
ResultPair pair;
dbclient->GetNext(pair, dbhandle, ri.iterator);
if (pair.status == Code::kOk) {
foundPairs++;
} else {
break;
}
}
assert(foundPairs == 2);
ret = dbclient->DeleteIterator(dbhandle, ri.iterator);
assert(ret == Code::kOk);
printf("Iterator scan-all forward passes.\n");
// create a new iterator, position at end and scan backwards
readOptions.snapshot.snapshotid = 0;
dbclient->NewIterator(ri, dbhandle, readOptions,
IteratorType::seekToLast, target);
assert(ri.status == Code::kOk);
foundPairs = 0;
while (true) {
ResultPair pair;
dbclient->GetPrev(pair, dbhandle, ri.iterator);
if (pair.status == Code::kOk) {
foundPairs++;
} else {
break;
}
}
assert(foundPairs == 2);
ret = dbclient->DeleteIterator(dbhandle, ri.iterator);
assert(ret == Code::kOk);
printf("Iterator scan-all backward passes.\n");
// create a new iterator, position at middle
readOptions.snapshot.snapshotid = 0;
target = key;
dbclient->NewIterator(ri, dbhandle, readOptions,
IteratorType::seekToKey, target);
assert(ri.status == Code::kOk);
foundPairs = 0;
while (true) {
ResultPair pair;
dbclient->GetPrev(pair, dbhandle, ri.iterator);
if (pair.status == Code::kOk) {
foundPairs++;
} else {
break;
}
}
assert(foundPairs == 1);
ret = dbclient->DeleteIterator(dbhandle, ri.iterator);
assert(ret == Code::kOk);
printf("Iterator scan-selective backward passes.\n");
// close database
dbclient->Close(dbhandle, dbname);
transport->close();
}
static void* startTestServer(void *arg) {
printf("Server starting on port %d...\n", myport);
startServer(myport);
}
int main(int argc, char **argv) {
// remove old data, if any
int ret = unlink(dbname.c_str());
char* cleanup = new char[100];
snprintf(cleanup, 100, "rm -rf %s", dbname.c_str());
system(cleanup);
// create a server
int rc = pthread_create(&serverThread, NULL, startTestServer, NULL);
printf("Server thread created.\n");
// give some time to the server to initialize itself
sleep(1);
// test client
testClient(myport);
return 0;
}