/**************************************************************
* constructor/destructor
**************************************************************/
u_service
u_serviceNew(
const c_char *uri,
c_long timeout,
const c_char *name,
const c_char *extendedStateName,
u_serviceKind kind,
v_qos qos)
{
u_domain domain;
v_kernel kk;
v_service ks;
v_serviceManager sm;
u_service s;
u_result r;
os_result osr;
c_bool serviceTermHandlerRequired = FALSE;
ks = NULL;
r = u_domainOpen(&domain, uri, timeout);
if (r != U_RESULT_OK) {
OS_REPORT_1(OS_ERROR,"u_serviceNew",0,
"Failure to open the kernel - return code %d", r);
return NULL;
}
s = NULL;
if (domain != NULL) {
r = u_entityWriteClaim(u_entity(domain),(v_entity*)(&kk));
if (r == U_RESULT_OK) {
assert(kk);
sm = v_getServiceManager(kk);
if (sm != NULL) {
#ifndef INTEGRITY
if (lockPages(kk, name)) {
osr = os_procMLockAll(OS_MEMLOCK_CURRENT|OS_MEMLOCK_FUTURE);
} else {
osr = os_resultSuccess;
}
if (osr == os_resultSuccess) {
#endif
switch(kind){
case U_SERVICE_DDSI:
case U_SERVICE_DDSIE:
case U_SERVICE_NETWORKING:
ks = v_service(v_networkingNew(sm, name,
extendedStateName,
(v_participantQos)qos));
serviceTermHandlerRequired = TRUE;
break;
case U_SERVICE_DURABILITY:
ks = v_service(v_durabilityNew(sm, name,
extendedStateName,
(v_participantQos)qos));
serviceTermHandlerRequired = TRUE;
break;
case U_SERVICE_CMSOAP:
ks = v_service(v_cmsoapNew(sm, name,
extendedStateName,
(v_participantQos)qos));
serviceTermHandlerRequired = TRUE;
break;
case U_SERVICE_RNR:
ks = v_service(v_rnrNew(sm, name,
extendedStateName,
(v_participantQos)qos));
serviceTermHandlerRequired = TRUE;
break;
case U_SERVICE_DBMSCONNECT:
case U_SERVICE_INCOGNITO:
ks = v_serviceNew(sm, name,
extendedStateName,
(v_participantQos)qos, NULL);
serviceTermHandlerRequired = TRUE;
break;
case U_SERVICE_SPLICED:
break;
default:
OS_REPORT(OS_WARNING,"u_serviceNew",0,
"Failed to start an unknown service kind");
break;
}
} else {
OS_REPORT(OS_ERROR,"u_serviceNew",0,
"Failed to lock memory pages for current process");
}
/* Install the service signal handlers if spliced is not within this
* same process. i.e. only do this if each service is in its own
* process so signal handlers won't interfere */
if (serviceTermHandlerRequired && !u_splicedInProcess()) {
os_procSetTerminationHandler(serviceTermHandler);
}
#ifndef INTEGRITY
} else {
OS_REPORT(OS_ERROR,"u_serviceNew",0,
"Failed to retrieve the Service Manager");
}
#endif
if (ks != NULL) {
s = u_entityAlloc(NULL,u_service,ks,TRUE);
r = u_serviceInit(s, kind, domain);
if (r != U_RESULT_OK) {
OS_REPORT_1(OS_ERROR,"u_serviceNew",0,
"Failed to initialize service: %s", name);
u_serviceFree(s);
s = NULL;
}
callbackService = s;
(void) os_signalHandlerSetExceptionCallback(u__serviceExceptionCallbackWrapper);
} else {
OS_REPORT(OS_WARNING,"u_serviceNew",0,
"Failed to retrieve the Service Manager");
}
r = u_entityRelease(u_entity(domain));
}
}
return s;
}
u_result
u_userInitialise(
void)
{
u_user u;
u_result rm = U_RESULT_OK;
os_mutexAttr mutexAttr;
os_uint32 initCount;
void* initUser;
os_result osResult;
os_signalHandlerExitRequestCallback exitRequestCallback;
os_signalHandlerExceptionCallback exceptionCallback;
initCount = pa_increment(&_ospl_userInitCount);
/* If initCount == 0 then an overflow has occurred.
* This can only realistically happen when u_userDetach()
* is called more often than u_userInitialize().
*/
assert(initCount != 0);
os_osInit();
if (initCount == 1) {
/* Will start allocating the object, so it should currently be empty. */
assert(user == NULL);
/* Use indirection, as user != NULL is a precondition for user-layer
* functions, so make sure it only holds true when the user-layer is
* initialized. */
initUser = os_malloc(sizeof(C_STRUCT(u_user)));
if (initUser == NULL) {
/* Initialization failed, so decrement the initialization counter. */
pa_decrement(&_ospl_userInitCount);
os_osExit();
OS_REPORT(OS_ERROR, "u_userInitialise", 0,
"Allocation of user admin failed: out of memory.");
rm = U_RESULT_OUT_OF_MEMORY;
} else {
u = u_user(initUser);
os_mutexAttrInit(&mutexAttr);
mutexAttr.scopeAttr = OS_SCOPE_PRIVATE;
os_mutexInit(&u->mutex,&mutexAttr);
osResult = os_signalHandlerNew();
if(osResult != os_resultSuccess)
{
/* Initialization did not succeed, undo increment and return error */
initCount = pa_decrement(&_ospl_userInitCount);
OS_REPORT(OS_ERROR, "u_userInitialise", 0,
"Failed to create the signal handler. No proper signal handling can be performed.");
rm = U_RESULT_INTERNAL_ERROR;
} else
{
exitRequestCallback = os_signalHandlerSetExitRequestCallback(u__userExitRequestCallbackWrapper);
if(exitRequestCallback && exitRequestCallback != u__userExitRequestCallbackWrapper)
{
initCount = pa_decrement(&_ospl_userInitCount);
OS_REPORT(OS_ERROR, "u_userInitialise", 0,
"Replaced an exit request callback on the signal handler while this was not expected.");
rm = U_RESULT_INTERNAL_ERROR;
}
if(rm == U_RESULT_OK){
exceptionCallback = os_signalHandlerSetExceptionCallback(u__userExceptionCallbackWrapper);
if(exceptionCallback && exceptionCallback != u__userExceptionCallbackWrapper)
{
initCount = pa_decrement(&_ospl_userInitCount);
OS_REPORT(OS_ERROR, "u_userInitialise", 0,
"Replaced an exception callback on the signal handler while this was not expected.");
rm = U_RESULT_INTERNAL_ERROR;
}
}
if(rm == U_RESULT_OK)
{
u->domainCount = 0;
u->protectCount = 0;
u->detachThreadId = OS_THREAD_ID_NONE;
/* This will mark the user-layer initialized */
user = initUser;
}
}
}
} else {
if(user == NULL){
os_time sleep = {0, 100000}; /* 100ms */
/* Another thread is currently initializing the user-layer. Since
* user != NULL is a precondition for calls after u_userInitialise(),
* a sleep is performed, to ensure that (if succeeded) successive
* user-layer calls will also actually pass.*/
os_nanoSleep(sleep);
}
if(user == NULL){
/* Initialization did not succeed, undo increment and return error */
initCount = pa_decrement(&_ospl_userInitCount);
OS_REPORT_1(OS_ERROR,"u_userInitialise",0,
"Internal error: User-layer should be initialized "
"(initCount = %d), but user == NULL (waited 100ms).",
initCount);
rm = U_RESULT_INTERNAL_ERROR;
}
}
return rm;
}
