/*
* ======== Comm_create ========
*/
Comm_Handle Comm_create(String queueName, Comm_Attrs *attrs)
{
Comm_Obj *comm;
UInt32 commId;
Char commName[ MAXCOMMNAMELEN ];
key_t key;
Assert_isTrue(curInit > 0, (Assert_Id)NULL);
Log_print2(Diags_ENTRY, "[+E] Comm_create> "
"Enter(queueName='%s', attrs=0x%x)", (IArg)queueName, (IArg)attrs);
if (attrs == NULL) {
attrs = &Comm_ATTRS;
}
if (queueName == NULL) {
/* Generate a name to use */
// TODO: Increment curCommId atomically
commId = curCommId++;
sprintf(commName, "queue_%lu_%u", Global_getProcessId(), (Uns)commId);
key = nameToId(commName);
}
else {
key = nameToId(queueName);
}
comm = (Comm_Obj *)Memory_alloc(NULL, sizeof(Comm_Obj), 0, NULL);
if (comm == NULL) {
return (NULL);
}
comm->type = attrs->type;
if (comm->type == Comm_PEND) {
;
}
else if (comm->type == Comm_CALL) {
comm->callHandle = attrs->callHandle;
comm->callFxn = attrs->callFxn;
}
else {
Assert_isTrue(FALSE, (Assert_Id)NULL); /* unknown Comm type */
}
/*
* Create a new message queue id for the "name" key
*/
if ((comm->id = msgget(key, IPC_CREAT | 0644)) < 0) {
fprintf(stderr, "msgget key = 0x%x\n", key);
perror("Comm_create:msgget");
Memory_free(NULL, comm, sizeof(Comm_Obj));
return (NULL);
}
Log_print1(Diags_EXIT, "[+X] Comm_create> return (0x%x)", (IArg)comm);
return (comm);
}
/*
* ======== LAD_connect ========
*/
LAD_Status LAD_connect(LAD_ClientHandle * handle)
{
LAD_Status status = LAD_SUCCESS;
Int clientId;
UInt32 pid;
// DebugBreak();
/* sanity check arg */
if (handle == NULL) {
return (LAD_INVALIDARG);
}
/* check and initialize on first connect request */
if (refCount++ == 0) {
/* TODO:M does this need to be atomized? */
status = initLad();
if (status != LAD_SUCCESS) {
return (status);
}
}
/* get caller's process ID */
// TODO: Do we need a unique ID? For kernel drivers at startup, the
// Process Id is the same.
pid = Global_getProcessId();
clientId = assignClientId();
if (clientId == -1) {
PRINTVERBOSE0("\nLAD_connect failed: To many connections!\n");
*handle = (LAD_ClientHandle)-1;
status = LAD_ACCESSDENIED;
}
else {
/* setup client info */
clientInfo[clientId].PID = pid;
clientInfo[clientId].connectedToLAD = TRUE;
*handle = (LAD_ClientHandle)clientId;
}
return (status);
}
