void block(int mboxID, int block, int size, char message[], int *realSize) {
// get the correct process from the process table
process *proc = &processTable[getpid() % 50];
// add info to that process
proc->pid = getpid();
proc->blockStatus = block;
proc->mboxID = mboxID;
proc->timeAdded = USLOSS_Clock();
proc->size = size;
// if a zero slot message box wants to send a message
if (message != NULL && block == SENDBLOCK) {
memcpy(proc->message, message, size);
}
// actually block
blockMe(block);
if (message != NULL && block == RECEIVEBLOCK) {
memcpy(message, processTable[getpid() % 50].message, size);
*realSize = processTable[getpid() % 50].size;
}
if (block == RECEIVEBLOCK) {
// empty out this slot in the processTable
processTable[getpid() % 50].pid = -1;
processTable[getpid() % 50].blockStatus = -1;
processTable[getpid() % 50].message[0] = '\0';
processTable[getpid() % 50].size = -1;
processTable[getpid() % 50].mboxID = -1;
processTable[getpid() % 50].timeAdded = -1;
}
}
int XXp2(char *arg)
{
int result;
printf("XXp2(): started, pid = %d, calling blockMe\n", getpid());
result = blockMe(11);
printf("XXp2(): pid = %d, after blockMe, result = %d\n", getpid(), result);
printf("XXp2(): pid = %d, isZapped() = %d\n", getpid(), isZapped());
quit(0);
return 0;
} /* XXp2 */
