45 lines
1011 B
C++
45 lines
1011 B
C++
#include "lmdb-safe.hh"
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#include <iostream>
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using namespace std;
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using namespace LMDBSafe;
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void countDB(MDBEnv& env, MDBROTransaction& txn, const std::string& dbname)
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{
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auto db = txn->openDB(dbname, 0);
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auto cursor = txn->getCursor(db);
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uint32_t count = 0;
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MDBOutVal key, val;
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while(!cursor.get(key, val, count ? MDB_NEXT : MDB_FIRST)) {
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cout << key.get<string>();
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if(key.d_mdbval.mv_size == 4)
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cout << " " << key.get<uint32_t>();
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cout<<": " << val.get<std::string>();
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cout << "\n";
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++count;
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}
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cout <<count<<endl;
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}
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int main(int argc, char** argv)
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{
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MDBEnv env(argv[1], MDB_RDONLY | MDB_NOSUBDIR, 0600);
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auto main = env.openDB("", 0);
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auto txn = env.getROTransaction();
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auto cursor = txn->getCursor(main);
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MDBOutVal key, val;
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if(cursor.get(key, val, MDB_FIRST)) {
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cout << "Database is empty" <<endl;
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}
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do {
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cout << key.get<string>() << endl;
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countDB(env, txn, key.get<string>());
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} while(!cursor.get(key, val, MDB_NEXT));
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}
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