int main ()
{
// clang-format off
//! [set]
KeySet * myConfig = ksNew (0, KS_END);
Key * parentKey = keyNew ("system/sw/MyApp", KEY_END);
KDB * handle = kdbOpen (parentKey);
kdbGet (handle, myConfig, parentKey); // kdbGet needs to be called first!
KeySet * base = ksDup (myConfig); // save a copy of original keyset
// change the keys within myConfig
KeySet * ours = ksDup (myConfig); // save a copy of our keyset
KeySet * theirs; // needed for 3-way merging
int ret = kdbSet (handle, myConfig, parentKey);
while (ret == -1) // as long as we have an error
{
// We got an error. Warn user.
Key * problemKey = ksCurrent (myConfig);
// parentKey has the errorInformation
// problemKey is the faulty key (may be null)
int userInput = showElektraErrorDialog (parentKey, problemKey);
switch (userInput)
{
case INPUT_USE_OURS:
kdbGet (handle, myConfig, parentKey); // refresh key database
ksDel (myConfig);
myConfig = ours;
break;
case INPUT_DO_MERGE:
theirs = ksDup (ours);
kdbGet (handle, theirs, parentKey); // refresh key database
KeySet * res = doElektraMerge (ours, theirs, base);
ksDel (theirs);
myConfig = res;
break;
case INPUT_USE_THEIRS:
// should always work, we just write what we got
// but to be sure always give the user another way
// to exit the loop
kdbGet (handle, myConfig, parentKey); // refresh key database
break;
// other cases ...
}
ret = kdbSet (handle, myConfig, parentKey);
}
ksDel (ours);
ksDel (base);
ksDel (myConfig); // delete the in-memory configuration
kdbClose (handle, parentKey); // no more affairs with the key database.
keyDel (parentKey);
//! [set]
}
// typical usage of Elektra
int main()
{
Key * error_key = keyNew(KEY_END);
KDB * kdb_handle = kdbOpen(error_key);
Key * top = keyNew(KEY_END);
keySetName(top, "user/sw/MyApp");
KeySet * ks = ksNew(0);
kdbGet(kdb_handle, ks, top);
Key * key = keyNew(KEY_END);
keySetName(key, "user/sw/MyApp/Tests/TestKey1"); // == 31
keySetString(key, "NULLTestValue"); // == 14
keySetMeta(key, "comment", "NULLTestComment"); // == 16
ksAppendKey(ks, key); // == 1
keyNeedSync(key);
kdbSet(kdb_handle, ks, top); // == -1
print_warnings(top);
keyDel(top);
ksDel(ks);
kdbClose(kdb_handle, error_key);
keyDel(error_key);
check_key();
return 0;
}
int main(int argc, char**argv)
{
Key *parentKey = keyNew("", KEY_END);
KDB *kdb = kdbOpen(parentKey);
KeySet *conf = ksNew(0);
// get all config files
kdbGetByName(kdb, conf, parentKey, "/test/lift");
kdbGetByName(kdb, conf, parentKey, "/test/material_lift");
kdbGetByName(kdb, conf, parentKey, "/test/heavy_material_lift");
kdbGetByName(kdb, conf, parentKey, "/test/person_lift");
// get by params
int retval = ksGetOpt(argc, argv, conf);
if (retval & 1)
{
printf("%s Version 0.1\n",
argv[0]);
return 0;
}
else if (retval & 2)
{
printf("Usage: %s [OPTIONS]\n"
"%s\n"
"Example that demonstrates elektra gen parameters\n",
argv[0],
elektraGenHelpText());
return 0;
}
else if (retval != 0)
{
printf ("Error in parsing options %d\n", retval);
}
// write back to user/test/lift what we got by commandline
// that means overrides in *_lift are still active, but
// fallbacks will be overriden.
if (lift(conf))
{
printf("Write out config\n");
keySetName(parentKey, "user/test/lift");
kdbSet(kdb, conf, parentKey);
}
ksDel(conf);
kdbClose(kdb, parentKey);
keyDel(parentKey);
return retval;
}
int main ()
{
// clang-format off
//! [cut]
Key * parentKey = keyNew ("system/mountpoint/interest", KEY_END);
KDB * kdb = kdbOpen (parentKey);
KeySet * ks = ksNew (0, KS_END);
kdbGet (kdb, ks, parentKey);
KeySet * returned = ksCut (ks, parentKey);
kdbSet (kdb, ks, parentKey); // all keys below cutpoint are now removed
kdbClose (kdb, parentKey);
//! [cut]
outputKeySet (returned);
outputKeySet (ks);
}
void benchmarkWriteout ()
{
kdbSet (kdb, large, key);
}
void benchmarkRewrite ()
{
kdbSet (kdb, large, key);
}
gint gelektra_kdb_set (GElektraKdb * kdb, GElektraKeySet * returned, GElektraKey * parent)
{
return kdbSet (kdb->handle, returned->keyset, parent->key);
}
{
Key * parent = keyNew ("user/test/race", KEY_END);
KDB *h = kdbOpen(parent);
char buffer[4096];
unsigned long tid = (unsigned long) pthread_self();
int pid = getpid();
sprintf(buffer, "user/test/race/keys/%d/%lu", pid, tid);
KeySet * ks = ksNew(20,
KS_END);
int retg = kdbGet(h, ks, parent);
ksAppendKey(ks,
keyNew (buffer, KEY_VALUE, "a value", KEY_END));
pthread_barrier_wait(bar);
int rets = kdbSet (h, ks, parent);
if (rets != -1)
{
int retg2 = kdbGet(h, ks, parent);
printf ("I (%d/%lu) won the race! Got return values from first get %d,"
" from set %d, from second get %d\n",
pid, tid, retg, rets, retg2);
ksRewind(ks);
/*
Key * c;
while((c = ksNext(ks)))
{
printf ("Got key: %s - %s\n",
keyName(c), keyString(c));
}
