/* count the messages in a mailbox */
static void countMessages(Pop3 pc, const char *mbox_filename)
{
FILE *F;
char buf[BUF_SIZE];
int is_header = 0;
int next_from_is_start_of_header = 1;
int count_from = 0, count_status = 0;
int len_from = strlen(FROM_STR), len_status = strlen(STATUS_STR);
int pseudo_mail = 0;
F = openMailbox(pc, mbox_filename);
if (F == NULL)
return;
/* count message */
while (fgets(buf, BUF_SIZE, F)) {
// The first message usually is automatically created by POP3/IMAP
// clients for internal record keeping and is ignored
// (not displayed) by most email clients.
if (is_header && !strncmp(buf, "X-IMAP: ", 8))
{
pseudo_mail = 1;
}
if (buf[0] == '\n') {
/* a newline by itself terminates the header */
if (is_header)
is_header = 0;
else
next_from_is_start_of_header = 1;
} else if (!strncmp(buf, FROM_STR, len_from)) {
/* A line starting with "From" is the beginning of a new header.
"From" in the text of the mail should get escaped by the MDA.
If your MDA doesn't do that, it is broken.
*/
if (next_from_is_start_of_header)
is_header = 1;
if (is_header)
count_from++;
} else {
next_from_is_start_of_header = 0;
if (is_header && !strncmp(buf, STATUS_STR, len_status)
&& strrchr(buf, 'R')) {
count_status++;
}
}
}
if (count_from && pseudo_mail) {
count_from--;
if (count_status)
count_status--;
}
DM(pc, DEBUG_INFO, "from: %d status: %d\n", count_from, count_status);
pc->TotalMsgs = count_from;
pc->UnreadMsgs = count_from - count_status;
fclose(F);
}
void VoiceboxDialog::doMailboxStart() {
openMailbox();
doListOverview();
if (new_msgs.empty() && saved_msgs.empty()) {
state = Bye;
} else {
enqueueCurMessage();
}
}
int main(int argc, char *argv[])
{
int pid = -1; //PID
float temp = 0; //inital temperature from command line
float downTemp = 0;
float parentTemp = 0;
float upTemp = 0;
//parses command line arguments and updates pid and initial temperature/exits on fail
if(!getArgumentValues(parseArguments(argc, argv), pid, temp)) exit(0);
mqd_t mqueue; /*message queue*/
mqd_t parent;
mqd_t child_1;
mqd_t child_2;
struct mq_attr ma;
ma.mq_flags = 0;
ma.mq_maxmsg = 10;
ma.mq_msgsize = 33;
ma.mq_curmsgs = 0;
float child1Value;
float child2Value;
//sendFloat(mqueue, temp);
//qout << receiveFloat(mqueue);
//mq_close(mqueue);
//mq_unlink(P0);
switch(pid){
case 0:
{
mqueue = openMailbox(P0, ma);
child_1 = openMailbox(P1, ma);
child_2 = openMailbox(P2, ma);
sendFloat(child_1, temp, 0.0); //false flags as sent down
sendFloat(child_2, temp, 0.0);
break;
}
case 1:
parent = openMailbox(P0, ma);
mqueue = openMailbox(P1, ma);
child_1 = openMailbox(P3, ma);
child_2 = openMailbox(P4, ma);
break;
case 2:
parent = openMailbox(P0, ma);
mqueue = openMailbox(P2, ma);
child_1 = openMailbox(P5, ma);
child_2 = openMailbox(P6, ma);
break;
case 3:
parent = openMailbox(P1, ma);
mqueue = openMailbox(P3, ma);
break;
case 4:
parent = openMailbox(P1, ma);
mqueue = openMailbox(P4, ma);
break;
case 5:
parent = openMailbox(P2, ma);
mqueue = openMailbox(P5, ma);
break;
case 6:
parent = openMailbox(P2, ma);
mqueue = openMailbox(P6, ma);
break;
}
bool isStable = false;
while(!isStable)
{
if(pid == 0)
{
if(numMessages(mqueue) > 1)
{
float cPid = 10;
float c2Pid = 10;
float child1Value = receiveFloat(mqueue, cPid);
float child2Value = receiveFloat(mqueue, c2Pid);
upTemp = (temp + child1Value + child2Value)/3.0;
qout << "Process " << pid << " current temperature " << upTemp << endl;
if(qAbs(upTemp - temp) <= .01)
{
temp = upTemp;
isStable = true;
sendFloat(child_1, temp, 20);
sendFloat(child_2, temp, 20);
}
else
{
temp = upTemp;
sendFloat(child_1, temp, pid);
sendFloat(child_2, temp, pid);
}
}
}
if(pid == 1 || pid == 2)
{
if(hasMessages(mqueue))
{
float rPid = 10;
float value = receiveFloat(mqueue, rPid);
if(rPid == 20)
{
isStable = true;
sendFloat(child_1, temp, 20);
sendFloat(child_1, temp, 20);
}
else if(rPid == 0)
{
float downTemp = (temp + value)/2.0;
temp = downTemp;
sendFloat(child_1, downTemp, pid);
sendFloat(child_2, downTemp, pid);
}
else if(rPid == 3 || rPid == 4 || rPid == 5 || rPid == 6)
{
float child1_value = value;
float sPid = 10;
float child2_value = receiveFloat(mqueue, sPid);
if(sPid == 3 || sPid == 4 || sPid == 5 || sPid == 6)
{
upTemp = (temp + child1_value + child2_value)/3.0;
temp = upTemp;
qout << "Process " << pid << " current temperature " << upTemp << endl;
sendFloat(parent, upTemp, pid);
}
}
}
}
if(pid == 3 || pid == 4 || pid == 5 || pid ==6)
{
if(hasMessages(mqueue))
{
float rPid;
parentTemp = receiveFloat(mqueue, rPid);
if(rPid == 20)
{
isStable = true;
}
else
{
downTemp = (temp + parentTemp)/2.0;
temp = downTemp;
sendFloat(parent, downTemp, pid); //true flags it as sent up
qout << "Process " << pid << " current temperature " << downTemp << endl;
}
}
}
}
qout << "Process " << pid << " final temperature " << temp << endl;
mq_close(parent);
mq_close(child_1);
mq_close(child_2);
mq_close(mqueue);
mq_unlink(P0);
mq_unlink(P1);
mq_unlink(P2);
mq_unlink(P3);
mq_unlink(P4);
mq_unlink(P5);
mq_unlink(P6);
return 0;
} /*end main()*/
