Created
January 23, 2011 19:28
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#include "db_map.h" // Berkeley DB's STL Map support | |
using namespace dbstl; | |
main() | |
{ | |
std::string key = "hello"; | |
int value = 1234; | |
Db *dbp = NULL; | |
DbEnv *envp = NULL; | |
typedef db_multimap<char *, int, ElementHolder<int> > strmap_t; | |
envp = new DbEnv( ... ); | |
dbp = new Db(envp, ... ); | |
dbstl::dbstl_startup(); | |
dbstl::register_db(dbp); | |
dbstl::register_db_env(envp); | |
strmap_t *strmap = new strmap_t(dbp, envp); | |
txn = dbstl::begin_txn(0, envp); | |
strmap->insert(key, value); | |
try { | |
dbstl::commit_txn(envp); | |
} catch (DbException &e) { | |
std::cout << "Error on txn commit: " << e.what() << std::endl; | |
dbstl::abort_txn(envp); | |
return FAILURE; | |
} | |
dbstl::commit_txn(envp); | |
return SUCCESS; | |
} | |
int | |
count_records(strmap_t *strmap) | |
{ | |
int count = 0; | |
strmap_t::iterator itr; | |
try { | |
for (itr = strmap->begin(); itr != strmap->end(); ++itr) | |
count++; | |
} catch (DbDeadlockException &de) { | |
std::cerr << "countRecords: deadlock" << std::endl; | |
throw de; | |
} catch (DbException &e) { | |
std::cerr << "countRecords: error" << std::endl; | |
std::cerr << e.what() << std::endl; | |
} | |
// itr's DB cursor is closed when the itr is destructed | |
return (count); | |
} |
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