/**
* ObserveThread: Initialize
*/
static int
ngcllObserveThreadInitialize(
ngclContext_t *context,
ngcliObserveThread_t *observe,
int *error)
{
static const char fName[] = "ngcllObserveThreadInitialize";
int result;
/* Check the arguments */
assert(context != NULL);
assert(observe != NULL);
/* log */
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_DEBUG, NULL,
"%s: Initialize the Observe Thread module.\n", fName);
ngcllObserveThreadInitializeMember(observe);
result = ngcllObserveThreadInitializeMutexAndCond(
context, observe, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't initialize the Mutex and Condition Variable.\n", fName);
return 0;
}
/* Success */
return 1;
}
/**
* RefreshCredentials: Initialize
*/
int
ngcliRefreshCredentialsInitialize(
ngclContext_t *context,
int *error)
{
static const char fName[] = "ngcliRefreshCredentialsInitialize";
ngcliObserveItem_t *observeItem;
int result, interval;
/* Check the arguments */
assert(context != NULL);
context->ngc_refreshCredentialsInfo = NULL;
/* Get the refresh credentials interval */
result = ngcllRefreshCredentialsIntervalGet(context, &interval, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't get the refresh credentials interval.\n", fName);
return 0;
}
if (interval <= 0) {
/* not used */
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_INFORMATION, NULL,
"%s: refresh credentials feature is not used.\n", fName);
return 1;
}
/* log */
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_DEBUG, NULL,
"%s: Initialize the Refresh Credentials module.\n", fName);
/* Construct */
observeItem = ngcliObserveItemConstruct(
context, &context->ngc_observe, error);
if (observeItem == NULL) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't construct the ObserveItem.\n", fName);
return 0;
}
context->ngc_refreshCredentialsInfo = observeItem;
observeItem->ngoi_eventTime = time(NULL) + interval;
observeItem->ngoi_interval = interval;
observeItem->ngoi_eventFunc = ngcllRefreshCredentialsEvent;
observeItem->ngoi_eventTimeSetFunc = ngcllRefreshCredentialsEventTimeSet;
/* Success */
return 1;
}
/**
* ObserveItem: EventTime change request
*/
int
ngcliObserveItemEventTimeChangeRequest(
ngclContext_t *context,
ngcliObserveThread_t *observe,
ngcliObserveItem_t *observeItem,
int *error)
{
static const char fName[] = "ngcliObserveItemEventTimeChangeRequest";
int result;
/* Check the arguments */
assert(context != NULL);
assert(observe != NULL);
assert(observeItem != NULL);
#if 0
ngLogPrintf(context->ngc_log, NG_LOG_LEVEL_FATAL, NG_LOG_LEVEL_FATAL, NULL,
"%s start...\n", fName);
#endif
#ifdef NG_PTHREAD
result = ngcllObserveThreadEventTimeChangeRequest(
context, observe, observeItem, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Changing ObserveItem eventTime failed.\n", fName);
return 0;
}
#else /* NG_PTHREAD */
/* Do nothing */
result = 1;
assert(result != 0);
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: observing is not supported for this GlobusToolkit flavor.\n",
fName);
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: observing is supported only for pthread version.\n",
fName);
#endif /* NG_PTHREAD */
/* Success */
return 1;
}
/**
* ObserveItem: Unregister
*/
static int
ngcllObserveItemUnregister(
ngclContext_t *context,
ngcliObserveThread_t *observe,
ngcliObserveItem_t *observeItem,
int *error)
{
ngcliObserveItem_t **tail;
static const char fName[] = "ngcllObserveItemUnregister";
/* Check the arguments */
assert(context != NULL);
assert(observe != NULL);
assert(observeItem != NULL);
/* Find the observeItem */
tail = &observe->ngot_item_head;
while ((*tail != NULL) && (*tail != observeItem)) {
tail = &(*tail)->ngoi_next;
}
if (*tail == NULL) {
NGI_SET_ERROR(error, NG_ERROR_NOT_EXIST);
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't find the ObserveItem in context.\n", fName);
return 0;
}
/* Unregister the observeItem */
*tail = (*tail)->ngoi_next;
/* Success */
return 1;
}
/**
* RefreshCredentials: ObserveThread event arrived
*/
static int
ngcllRefreshCredentialsEvent(
ngclContext_t *context,
ngcliObserveItem_t *observeItem,
time_t now,
int *error)
{
static const char fName[] = "ngcllRefreshCredentialsEvent";
int result;
/* Check the arguments */
assert(context != NULL);
assert(observeItem != NULL);
/* Perform the refreshCredentialsInfo */
result = ngcllRefreshCredentials(context, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Refreshing credentials failed.\n", fName);
return 0;
}
/* Success */
return 1;
}
/**
* ObserveItem: Construct
*/
ngcliObserveItem_t *
ngcliObserveItemConstruct(
ngclContext_t *context,
ngcliObserveThread_t *observe,
int *error)
{
static const char fName[] = "ngcliObserveItemConstruct";
ngcliObserveItem_t *observeItem;
int result;
/* Check the arguments */
assert(context != NULL);
assert(observe != NULL);
/* Allocate */
observeItem = ngcllObserveItemAllocate(context, error);
if (observeItem == NULL) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't allocate the storage for ObserveItem.\n", fName);
return NULL;
}
/* Initialize */
result = ngcllObserveItemInitialize(context, observeItem, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't initialize the ObserveItem.\n", fName);
return NULL;
}
/* Register */
result = ngcllObserveItemRegister(
context, observe, observeItem, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't register the ObserveItem.\n", fName);
return NULL;
}
/* Success */
return observeItem;
}
/**
* ObserveItem: Destruct
*/
int
ngcliObserveItemDestruct(
ngclContext_t *context,
ngcliObserveThread_t *observe,
ngcliObserveItem_t *observeItem,
int *error)
{
static const char fName[] = "ngcliObserveItemDestruct";
int result;
/* Check the arguments */
assert(context != NULL);
assert(observe != NULL);
/* Unregister */
result = ngcllObserveItemUnregister(
context, observe, observeItem, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't unregister the ObserveItem.\n", fName);
return 0;
}
/* Finalize */
result = ngcllObserveItemFinalize(context, observeItem, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't finalize the ObserveItem.\n", fName);
return 0;
}
/* Deallocate */
result = ngcllObserveItemFree(context, observeItem, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't deallocate the storage for ObserveItem.\n", fName);
return 0;
}
/* Success */
return 1;
}
/**
* ObserveThread: Finalize the Mutex and Condition Variable.
*/
static int
ngcllObserveThreadFinalizeMutexAndCond(
ngclContext_t *context,
ngcliObserveThread_t *observe,
int *error)
{
static const char fName[] = "ngcllObserveThreadFinalizeMutexAndCond";
ngLog_t *log;
int result;
/* Check the arguments */
assert(context != NULL);
assert(observe != NULL);
log = context->ngc_log;
/* Destroy the condition variable */
if (observe->ngot_condInitialized != 0) {
result = ngiCondDestroy(&observe->ngot_cond, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't destroy the Condition variable.\n", fName);
}
}
observe->ngot_condInitialized = 0;
/* Destroy the mutex */
if (observe->ngot_mutexInitialized != 0) {
result = ngiMutexDestroy(&observe->ngot_mutex, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't destroy the Mutex.\n", fName);
}
}
observe->ngot_mutexInitialized = 0;
/* Success */
return 1;
}
/**
* ObserveThread: Finalize
*/
static int
ngcllObserveThreadFinalize(
ngclContext_t *context,
ngcliObserveThread_t *observe,
int *error)
{
static const char fName[] = "ngcllObserveThreadFinalize";
int result;
/* Check the arguments */
assert(context != NULL);
assert(observe != NULL);
/* log */
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_DEBUG, NULL,
"%s: Finalize the Observe Thread module.\n", fName);
if (observe->ngot_continue != 0) {
NGI_SET_ERROR(error, NG_ERROR_INVALID_ARGUMENT);
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Observe Thread is not stopped.\n", fName);
return 0;
}
result = ngcllObserveThreadFinalizeMutexAndCond(
context, &context->ngc_observe, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't finalize the Mutex and Condition Variable.\n", fName);
return 0;
}
ngcllObserveThreadInitializeMember(observe);
/* Success */
return 1;
}
/**
* RefreshCredentials: Finalize
*/
int
ngcliRefreshCredentialsFinalize(
ngclContext_t *context,
int *error)
{
static const char fName[] = "ngcliRefreshCredentialsFinalize";
ngcliObserveItem_t *observeItem;
int result;
/* Check the arguments */
assert(context != NULL);
observeItem = context->ngc_refreshCredentialsInfo;
if (observeItem == NULL) {
/* not used */
return 1;
}
/* log */
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_DEBUG, NULL,
"%s: Finalize the Refresh Credentials module.\n", fName);
context->ngc_refreshCredentialsInfo = NULL;
/* Destruct */
result = ngcliObserveItemDestruct(
context, &context->ngc_observe, observeItem, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't destruct the ObserveItem.\n", fName);
return 0;
}
/* Success */
return 1;
}
/**
* RefreshCredentials: ObserveThread eventTime setup
*/
static int
ngcllRefreshCredentialsEventTimeSet(
ngclContext_t *context,
ngcliObserveItem_t *observeItem,
time_t now,
int *error)
{
static const char fName[] = "ngcllRefreshCredentialsEventTimeSet";
/* Check the arguments */
assert(context != NULL);
assert(observeItem != NULL);
if (observeItem->ngoi_eventTimeChangeRequested != 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: interval won't be changed.\n",
fName);
}
/* Check interval */
if (observeItem->ngoi_interval <= 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_WARNING, NULL,
"%s: interval is wrong (%d).\n",
fName, observeItem->ngoi_interval);
}
/* Set next eventTime */
if (observeItem->ngoi_eventExecuted != 0) {
observeItem->ngoi_eventTime = now + observeItem->ngoi_interval;
}
/* Success */
return 1;
}
/**
* ObserveThread: Proceed events on ObserveItems if necessary
*/
static int
ngcllObserveThreadProceedEvents(
ngclContext_t *context,
ngcliObserveThread_t *observe,
time_t now,
int *error)
{
static const char fName[] = "ngcllObserveThreadProceedEvents";
ngcliObserveItemEvent_t eventFunc;
ngcliObserveItem_t *observeItem;
int result;
/* Check the arguments */
assert(context != NULL);
assert(observe != NULL);
observeItem = NULL; /* retrieve head item */
while ((observeItem = ngcliObserveItemGetNext(
context, observe, observeItem, error)) != NULL) {
assert(observeItem != NULL);
observeItem->ngoi_eventExecuted = 0;
/* Skip if disabled */
if (observeItem->ngoi_eventTime == 0) {
continue;
}
/* Invoke the event */
if (observeItem->ngoi_eventTime <= now) {
eventFunc = observeItem->ngoi_eventFunc;
result = (*eventFunc)(context, observeItem, now, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_WARNING, NULL,
"%s: Observe event function returned by error.\n",
fName);
}
observeItem->ngoi_eventExecuted = 1;
}
}
/* Success */
return 1;
}
/**
* ObserveThread: Proceed eventTime change on ObserveItems if necessary
*/
static int
ngcllObserveThreadProceedEventTimeChange(
ngclContext_t *context,
ngcliObserveThread_t *observe,
time_t now,
int *error)
{
static const char fName[] = "ngcllObserveThreadProceedEventTimeChange";
ngcliObserveItemEvent_t eventFunc;
ngcliObserveItem_t *observeItem;
int result;
/* Check the arguments */
assert(context != NULL);
assert(observe != NULL);
observeItem = NULL; /* retrieve head item */
while ((observeItem = ngcliObserveItemGetNext(
context, observe, observeItem, error)) != NULL) {
assert(observeItem != NULL);
/* Invoke the eventTime setup function */
if ((observeItem->ngoi_eventExecuted != 0) ||
(observeItem->ngoi_eventTimeChangeRequested != 0)) {
eventFunc = observeItem->ngoi_eventTimeSetFunc;
result = (*eventFunc)(context, observeItem, now, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_WARNING, NULL,
"%s: Observe eventTime setup function returned by error.\n",
fName);
}
}
/* Reset the flag */
observeItem->ngoi_eventExecuted = 0;
observeItem->ngoi_eventTimeChangeRequested = 0;
}
/* Success */
return 1;
}
/**
* ObserveItem: Allocate
*/
static ngcliObserveItem_t *
ngcllObserveItemAllocate(
ngclContext_t *context,
int *error)
{
ngcliObserveItem_t *observeItem;
static const char fName[] = "ngcllObserveItemAllocate";
/* Allocate */
observeItem = globus_libc_calloc(1, sizeof(ngcliObserveItem_t));
if (observeItem == NULL) {
NGI_SET_ERROR(error, NG_ERROR_MEMORY);
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't allocate the storage for ObserveItem.\n", fName);
return NULL;
}
/* Success */
return observeItem;
}
/**
* ObserveThread: Finalize
*/
int
ngcliObserveThreadFinalize(
ngclContext_t *context,
int *error)
{
static const char fName[] = "ngcliObserveThreadFinalize";
int result;
/* Check the arguments */
assert(context != NULL);
result = ngcllObserveThreadFinalize(
context, &context->ngc_observe, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't clear the Observe Thread.\n", fName);
return 0;
}
/* Success */
return 1;
}
/**
* ObserveThread: EventTime change request
*/
static int
ngcllObserveThreadEventTimeChangeRequest(
ngclContext_t *context,
ngcliObserveThread_t *observe,
ngcliObserveItem_t *observeItem,
int *error)
{
static const char fName[] = "ngcllObserveThreadEventTimeChangeRequest";
int requireLock, result;
ngLog_t *log;
/* Check the arguments */
assert(context != NULL);
assert(observe != NULL);
assert(observeItem != NULL);
log = context->ngc_log;
requireLock = 1;
/**
* Tell the Observe thread that event time was changed
*/
/* Check if this thread is Observe thread */
result = globus_thread_equal(
observe->ngot_thread, globus_thread_self());
if (result != 0) {
/**
* This thread is Observe thread itself,
* and executing ngcllObserveThreadProceedEvents().
* Thus, no need to lock and cond_signal.
*/
requireLock = 0;
}
/* Lock */
if (requireLock != 0) {
result = ngiMutexLock(&observe->ngot_mutex, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't lock the Mutex.\n", fName);
return 0;
}
}
/* Set the status */
observeItem->ngoi_eventTimeChangeRequested = 1;
/* Notify signal */
if (requireLock != 0) {
result = ngiCondSignal(&observe->ngot_cond, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't signal the Condition Variable.\n", fName);
goto error;
}
}
/* Unlock */
if (requireLock != 0) {
result = ngiMutexUnlock(&observe->ngot_mutex, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't unlock the Mutex.\n", fName);
return 0;
}
}
/* Success */
return 1;
error:
/* Unlock */
if (requireLock != 0) {
result = ngiMutexUnlock(&observe->ngot_mutex, log, NULL);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't unlock the Mutex.\n", fName);
return 0;
}
}
/* Failed */
return 0;
}
/**
* RefreshCredentials: Perform Refresh Credentials
*/
static int
ngcllRefreshCredentials(
ngclContext_t *context,
int *error)
{
static const char fName[] = "ngcllRefreshCredentials";
ngcliJobManager_t *jobManager;
int result;
static gss_cred_id_t ng_gss_credential = GSS_C_NO_CREDENTIAL;
/* Check the arguments */
assert(context != NULL);
ngclLogPrintfContext(context, NG_LOG_CATEGORY_NINFG_PURE,
NG_LOG_LEVEL_INFORMATION, NULL,
"%s: refresh credentials.\n", fName);
/* acquire credential */
result = ngcliGlobusAcquireCredential(&ng_gss_credential,
context->ngc_log, error);
if (result != 1) {
ngclLogPrintfContext(context, NG_LOG_CATEGORY_NINFG_PURE,
NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't acquire proxy credential.\n", fName);
return 0;
}
/* Reset credential */
result = ngcliJobSetCredential(ng_gss_credential, error);
if (result != 1) {
ngclLogPrintfContext(context, NG_LOG_CATEGORY_NINFG_PURE,
NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't set proxy credential.\n", fName);
return 0;
}
/* lock the list of JobManager */
result = ngcliContextJobManagerListReadLock(context, context->ngc_log,
error);
if (result != 1) {
ngclLogPrintfContext(context, NG_LOG_CATEGORY_NINFG_PURE,
NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't lock the list of JobManager.\n", fName);
return 0;
}
jobManager = NULL; /* retrieve head item */
while ((jobManager = ngcliContextGetNextJobManager(
context, jobManager, error)) != NULL) {
/* refresh credential of JobManager */
result = ngcliJobRefreshCredential(jobManager, error);
if (result != 1) {
ngclLogPrintfContext(context, NG_LOG_CATEGORY_NINFG_PURE,
NG_LOG_LEVEL_WARNING, NULL,
"%s: Failed to refresh credential.\n", fName);
}
}
result = ngcliContextJobManagerListReadUnlock(context, context->ngc_log,
error);
if (result != 1) {
ngclLogPrintfContext(context, NG_LOG_CATEGORY_NINFG_PURE,
NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't unlock the list of JobManager.\n", fName);
return 0;
}
ngclLogPrintfContext(context, NG_LOG_CATEGORY_NINFG_PURE,
NG_LOG_LEVEL_DEBUG, NULL,
"%s: refresh credentials done.\n", fName);
/* Success */
return 1;
}
/**
* ObserveThread: Get minimum sleep time from ObserveItems
*/
static int
ngcllObserveThreadGetSleepTime(
ngclContext_t *context,
ngcliObserveThread_t *observe,
int *sleepSec,
int *error)
{
static const char fName[] = "ngcllObserveThreadGetSleepTime";
ngcliObserveItem_t *observeItem;
time_t minTime, now;
int found;
/* Check the arguments */
assert(context != NULL);
assert(observe != NULL);
assert(sleepSec != NULL);
*sleepSec = 0;
found = 0;
minTime = 0;
observeItem = NULL; /* retrieve head item */
while ((observeItem = ngcliObserveItemGetNext(
context, observe, observeItem, error)) != NULL) {
assert(observeItem != NULL);
/* Skip */
if (observeItem->ngoi_eventTime == 0) {
continue;
}
if ((found == 0) || (observeItem->ngoi_eventTime < minTime)) {
minTime = observeItem->ngoi_eventTime;
}
found = 1;
}
now = time(NULL);
/* To detect busy loop caused by eventTime no-refresh bug */
if ((found != 0) && ((minTime + 60) <= now)) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_WARNING, NULL,
"%s: Already passed eventTime detected. event time=%ld (now=%ld)\n",
fName, minTime, now);
}
if (found == 0) {
/* No need to wakeup, but wakeup long long later */
*sleepSec = NGCLL_OBSERVE_THREAD_NO_EVENT_SLEEP;
} else {
assert(minTime > 0);
if (minTime <= now) {
*sleepSec = 0;
} else {
*sleepSec = minTime - now;
}
}
/* Success */
return 1;
}
/**
* RefreshCredentials: Get the refresh interval
*/
static int
ngcllRefreshCredentialsIntervalGet(
ngclContext_t *context,
int *interval,
int *error)
{
static const char fName[] = "ngcllRefreshCredentialsIntervalGet";
ngclLocalMachineInformationManager_t *lmInfoMng;
ngLog_t *log;
int result;
/* Check the arguments */
assert(context != NULL);
assert(interval != NULL);
log = context->ngc_log;
*interval = 0;
/* Lock the Local Machine Information */
result = ngcliLocalMachineInformationListReadLock(context, log, error);
if (result == 0) {
ngclLogPrintfContext(context, NG_LOG_CATEGORY_NINFG_PURE,
NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't lock the list of Local Machine Information.\n", fName);
return 0;
}
/* Get refresh proxy cred interval */
lmInfoMng = ngcliLocalMachineInformationCacheGet(context, error);
if (lmInfoMng == NULL) {
ngclLogPrintfContext(context, NG_LOG_CATEGORY_NINFG_PURE,
NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't get the Local Machine Information.\n", fName);
goto error;
}
/* set the interval of refresh proxy cert */
*interval = lmInfoMng->nglmim_info.nglmi_refreshInterval;
/* Unlock the Local Machine Information */
result = ngcliLocalMachineInformationListReadUnlock(
context, log, error);
if (result == 0) {
ngclLogPrintfContext(context, NG_LOG_CATEGORY_NINFG_PURE,
NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't unlock the list of Local Machine Information.\n",
fName);
return 0;
}
/* Success */
return 1;
/* Error occurred */
error:
/* Unlock */
result = ngcliLocalMachineInformationListReadUnlock(
context, log, NULL);
if (result == 0) {
ngclLogPrintfContext(context, NG_LOG_CATEGORY_NINFG_PURE,
NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't unlock the list of Local Machine Information.\n",
fName);
return 0;
}
/* Failed */
return 0;
}
/**
* ObserveThread: main proceeding
*/
static void *
ngcllObserveThread(void *threadArgument)
{
static const char fName[] = "ngcllObserveThread";
ngcliObserveThread_t *observe;
int errorEntity, *error;
int result, wasTimedOut, sleepSec;
ngclContext_t *context;
ngLog_t *log;
time_t now;
/* Check the arguments */
assert(threadArgument != NULL);
context = (ngclContext_t *)threadArgument;
observe = &context->ngc_observe;
log = context->ngc_log;
error = &errorEntity;
sleepSec = 0;
now = 0;
/* Check if the flag is valid */
assert(observe->ngot_stopped == 0);
/**
* Do observing.
*/
/* Lock */
result = ngiMutexLock(&observe->ngot_mutex, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't lock the Mutex.\n", fName);
return NULL;
}
#if 0
ngLogPrintf(context->ngc_log, NG_LOG_LEVEL_FATAL, NG_LOG_LEVEL_FATAL, NULL,
"%s start...\n", fName);
#endif
/* Get current time */
now = time(NULL);
/* Proceed event time change if necessary */
result = ngcllObserveThreadProceedEventTimeChange(
context, observe, now, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Proceeding Observe Thread event time change failed.\n",
fName);
goto error;
}
/* Wait the status */
while (observe->ngot_continue != 0) {
/* Get sleep time */
result = ngcllObserveThreadGetSleepTime(
context, observe, &sleepSec, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Getting Observe Thread sleep time failed.\n", fName);
goto error;
}
/* Cond wait sleep */
result = ngiCondTimedWait(
&observe->ngot_cond, &observe->ngot_mutex,
sleepSec, &wasTimedOut, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't wait the Condition Variable.\n", fName);
goto error;
}
if (observe->ngot_continue == 0) {
break;
}
/* Get current time */
now = time(NULL);
/* Proceed events if necessary */
result = ngcllObserveThreadProceedEvents(
context, observe, now, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Proceeding Observe Thread event failed.\n", fName);
goto error;
}
/* Proceed event time change if necessary */
result = ngcllObserveThreadProceedEventTimeChange(
context, observe, now, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Proceeding Observe Thread event time change failed.\n",
fName);
goto error;
}
}
/* Unlock */
result = ngiMutexUnlock(&observe->ngot_mutex, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't unlock the Mutex.\n", fName);
return NULL;
}
/**
* Tell the Main Thread that, Observe Thread was stopped.
*/
/* Lock */
result = ngiMutexLock(&observe->ngot_mutex, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't lock the Mutex.\n", fName);
return NULL;
}
/* Set the status */
observe->ngot_stopped = 1; /* TRUE */
/* Notify signal */
result = ngiCondSignal(&observe->ngot_cond, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't signal the Condition Variable.\n", fName);
goto error;
}
/* Unlock */
result = ngiMutexUnlock(&observe->ngot_mutex, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't unlock the Mutex.\n", fName);
return NULL;
}
/* Success */
return NULL;
error:
/* Thread is stopped now */
observe->ngot_stopped = 1; /* TRUE */
/* Unlock */
result = ngiMutexUnlock(&observe->ngot_mutex, log, NULL);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't unlock the Mutex.\n", fName);
return NULL;
}
/* Failed */
return NULL;
}
/**
* ObserveThread: Stop checking
*/
int
ngcliObserveThreadStop(
ngclContext_t *context,
int *error)
{
static const char fName[] = "ngcliObserveThreadStop";
ngcliObserveThread_t *observe;
int result;
/* Check the arguments */
assert(context != NULL);
observe = &context->ngc_observe;
/* Check the arguments */
if (observe->ngot_stopped != 0) {
NGI_SET_ERROR(error, NG_ERROR_INVALID_ARGUMENT);
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Observe Thread was already stopped.\n", fName);
return 0;
}
/* Check if the Observe Thread is working */
if (observe->ngot_continue == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_DEBUG, NULL,
"%s: Observe Thread is not working.\n", fName);
/* Do nothing */
return 1;
}
#ifdef NG_PTHREAD
/* log */
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_DEBUG, NULL,
"%s: Stop the Observe Thread.\n", fName);
result = ngcllObserveThreadStop(context, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't stop the thread to observe.\n", fName);
return 0;
}
#else /* NG_PTHREAD */
/* Do nothing */
result = 1;
assert(result != 0);
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: observing not supported for this GlobusToolkit flavor.\n", fName);
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: observing is supported only for pthread version.\n", fName);
#endif /* NG_PTHREAD */
/* Success */
return 1;
}
/**
* ObserveThread: Start observing
*/
int
ngcliObserveThreadStart(
ngclContext_t *context,
int *error)
{
static const char fName[] = "ngcliObserveThreadStart";
ngcliObserveThread_t *observe;
int result, enabled;
/* Check the arguments */
assert(context != NULL);
observe = &context->ngc_observe;
enabled = 0;
if (observe->ngot_item_head != NULL) {
enabled = 1;
}
if (enabled == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_INFORMATION, NULL,
"%s: Observe Thread is unnecessary.\n",
fName);
/* Do nothing */
observe->ngot_continue = 0; /* FALSE */
observe->ngot_stopped = 0; /* FALSE */
return 1;
}
#ifdef NG_PTHREAD
observe->ngot_continue = 1; /* TRUE */
observe->ngot_stopped = 0; /* FALSE */
/* log */
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_DEBUG, NULL,
"%s: Start the Observe Thread.\n", fName);
/* Create the Observe Thread */
result = globus_thread_create(
&observe->ngot_thread, NULL,
ngcllObserveThread, context);
if (result != 0) {
NGI_SET_ERROR(error, NG_ERROR_GLOBUS);
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't create the thread for observe.\n", fName);
return 0;
}
#else /* NG_PTHREAD */
/* Do nothing */
result = 1;
assert(result != 0);
observe->ngot_continue = 0; /* FALSE */
observe->ngot_stopped = 0; /* FALSE */
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: observing is not supported for this GlobusToolkit flavor.\n",
fName);
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: observing is supported only for pthread version.\n",
fName);
#endif /* NG_PTHREAD */
/* Success */
return 1;
}
/**
* ObserveThread: Stop the thread
*/
static int
ngcllObserveThreadStop(
ngclContext_t *context,
int *error)
{
static const char fName[] = "ngcllObserveThreadStop";
ngcliObserveThread_t *observe;
ngLog_t *log;
int result;
/* Check the arguments */
assert(context != NULL);
log = context->ngc_log;
observe = &context->ngc_observe;
/* Check if the flag is valid */
assert(observe->ngot_continue == 1);
/**
* Tell the Observe thread to stop
*/
/* Lock */
result = ngiMutexLock(&observe->ngot_mutex, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't lock the Mutex.\n", fName);
return 0;
}
/* Set the status */
observe->ngot_continue = 0; /* to stop */
/* Notify signal */
result = ngiCondSignal(&observe->ngot_cond, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't signal the Condition Variable.\n", fName);
goto error;
}
/**
* Suppress unlock and lock, to ignore CondSignal(stopped) issue,
* before the CondWait(stopped) is in the process.
*/
/**
* Wait the Observe thread to stop
*/
/* Suppress lock. already locked */
/* Wait the status */
while (observe->ngot_stopped == 0) {
result = ngiCondWait(
&observe->ngot_cond, &observe->ngot_mutex,
log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't wait the Condition Variable.\n", fName);
goto error;
}
}
/* Unlock */
result = ngiMutexUnlock(&observe->ngot_mutex, log, error);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't unlock the Mutex.\n", fName);
return 0;
}
/* Success */
return 1;
error:
/* Unlock */
result = ngiMutexUnlock(&observe->ngot_mutex, log, NULL);
if (result == 0) {
ngclLogPrintfContext(context,
NG_LOG_CATEGORY_NINFG_PURE, NG_LOG_LEVEL_ERROR, NULL,
"%s: Can't unlock the Mutex.\n", fName);
return 0;
}
/* Failed */
return 0;
}
