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85 lines
2.0 KiB
85 lines
2.0 KiB
#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include "mdb.h"
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int main(int argc,char * argv[])
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{
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int i = 0, j = 0, rc;
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MDB_env *env;
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MDB_db *db;
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MDB_val key, data;
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MDB_txn *txn;
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MDB_stat *mst;
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MDB_cursor *cursor;
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int count;
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int *values;
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char sval[32];
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srandom(time(NULL));
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count = (random()%384) + 64;
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values = (int *)malloc(count*sizeof(int));
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for(i = 0;i<count;i++) {
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values[i] = random()%1024;
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}
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rc = mdbenv_create(&env);
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rc = mdbenv_set_mapsize(env, 10485760);
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rc = mdbenv_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664);
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rc = mdb_txn_begin(env, 0, &txn);
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rc = mdb_open(env, txn, NULL, 0, &db);
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key.mv_size = sizeof(int);
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key.mv_data = sval;
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data.mv_size = sizeof(sval);
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data.mv_data = sval;
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printf("Adding %d values\n", count);
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for (i=0;i<count;i++) {
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sprintf(sval, "%03x %d foo bar", values[i], values[i]);
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rc = mdb_put(db, txn, &key, &data, MDB_NOOVERWRITE);
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if (rc) j++;
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}
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if (j) printf("%d duplicates skipped\n", j);
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rc = mdb_txn_commit(txn);
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rc = mdbenv_stat(env, &mst);
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rc = mdb_cursor_open(db, NULL, &cursor);
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while (rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT) == 0) {
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printf("key: %.*s, data: %.*s\n",
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key.mv_size, key.mv_data, data.mv_size, data.mv_data);
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}
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mdb_cursor_close(cursor);
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j=0;
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key.mv_data = sval;
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for (i= count - 1; i > -1; i-= (random()%5)) {
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j++;
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rc = mdb_txn_begin(env, 0, &txn);
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sprintf(sval, "%03x ", values[i]);
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rc = mdb_del(db, txn, &key, NULL);
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if (rc) {
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j--;
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mdb_txn_abort(txn);
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} else {
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rc = mdb_txn_commit(txn);
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}
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}
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free(values);
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printf("Deleted %d values\n", j);
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rc = mdbenv_stat(env, &mst);
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rc = mdb_cursor_open(db, NULL, &cursor);
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while (rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT) == 0) {
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printf("key: %.*s, data: %.*s\n",
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key.mv_size, key.mv_data, data.mv_size, data.mv_data);
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}
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mdb_cursor_close(cursor);
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mdb_close(db);
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mdbenv_close(env);
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return 0;
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}
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