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| #define FDB_API_VERSION 710
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fdb_c.h>
#include <unistd.h>
FDBTransaction *tr = NULL;
FDBDatabase *db = NULL;
pthread_t netThread;
static void checkError(fdb_error_t errorNum) {
if (errorNum) {
fprintf(stderr, "Error (%d): %s\n", errorNum, fdb_get_error(errorNum));
exit(errorNum);
}
}
static void waitAndCheckError(FDBFuture *future) {
checkError(fdb_future_block_until_ready(future));
if (fdb_future_get_error(future) != 0) {
checkError(fdb_future_get_error(future));
}
}
static void runNetwork() { checkError(fdb_run_network()); }
void createDataInDatabase() {
int committed = 0;
checkError(fdb_database_create_transaction(db, &tr));
while (!committed) {
char *key1 = "Test Key1";
char *val1 = "Test Value1";
fdb_transaction_set(tr, key1, (int)strlen(key1), val1, (int)strlen(val1));
FDBFuture *commitFuture = fdb_transaction_commit(tr);
checkError(fdb_future_block_until_ready(commitFuture));
if (fdb_future_get_error(commitFuture) != 0) {
waitAndCheckError(
fdb_transaction_on_error(tr, fdb_future_get_error(commitFuture)));
} else {
committed = 1;
}
fdb_future_destroy(commitFuture);
}
fdb_transaction_destroy(tr);
}
void readDataFromDatabase() {
FDBTransaction *tr = NULL;
const uint8_t *value = NULL;
fdb_bool_t valuePresent;
int valueLength;
char *key = "Test Key1";
checkError(fdb_database_create_transaction(db, &tr));
FDBFuture *getFuture = fdb_transaction_get(tr, key, (int)strlen(key), 0);
waitAndCheckError(getFuture);
checkError(
fdb_future_get_value(getFuture, &valuePresent, &value, &valueLength));
printf("Got Value from db. %s: '%.*s'\n", key, valueLength, value);
fdb_transaction_destroy(tr);
fdb_future_destroy(getFuture);
}
int main() {
char *cluster_file = "/etc/foundationdb/fdb.cluster";
checkError(fdb_select_api_version(FDB_API_VERSION));
checkError(fdb_setup_network());
puts("Created network.");
pthread_create(&netThread, NULL, (void *)runNetwork, NULL);
checkError(fdb_create_database(cluster_file, &db));
puts("Created database.");
createDataInDatabase();
readDataFromDatabase();
puts("Program done. Now exiting...");
fdb_database_destroy(db);
db = NULL;
checkError(fdb_stop_network());
int rc = pthread_join(netThread, NULL);
if (rc)
fprintf(stderr, "ERROR: network thread failed to join\n");
exit(0);
}
|