int pingPong(PacketSender& ps, int adr)
{
PingPacket ping(0, adr);
verbose("PING(%d)...", adr);
do {
ps.SendPacketVal(ping);
} while (!ps.ReceivePacket());
info("PONG from %d\n", adr);
return 1;
}
void sendFile(const char* fileName, PacketSender& packetSender, int studentNo)
{
static const char progressChar[] = "...--oo*OO0";
uint8_t Sector[SECTORSIZE];
FILE* infile;
struct stat stat_p;
int sectNo = 0;
// check the size of file
stat(fileName, &stat_p);
infile = fopen(fileName, "rb");
if (infile == 0) {
eggog("Error: cannot open %s\n", fileName);
}
info("Sending file %s to workstation %d\n", fileName, studentNo);
// Send ping
if (!pingPong(packetSender, studentNo)) eggog("No reply from workstation %d\n", studentNo);
// Create file on the net disk
{
NetCreateFilePacket createFile(0, studentNo, fileName);
packetSender.SendPacketVal(createFile);
if (!packetSender.ReceivePacket()) {
eggog("No ack of create file from %d\n", studentNo);
}
}
verbose("\nGot re: NET_CREATE_FILE.\n");
// Reading the file sector-by-sector and writing them onto the net disk
info("\nNumber of sectors to send: %zd\n",
(size_t) ((stat_p.st_size / sizeof (Sector)) + (stat_p.st_size % sizeof (Sector))));
while (!feof(infile))
{
if (fread(Sector, sizeof(Sector), 1, infile) == 0) break;
{
NetMasterDataPacket data(0, studentNo, Sector, SECTORSIZE);
packetSender.SendPacketVal(data);
NetWriteFilePacket writeFile(0, studentNo, packetSender.GetNetFCB());
packetSender.SendPacketVal(writeFile);
if (!packetSender.ReceivePacket()) {
eggog("No ack of file write from %d\n", studentNo);
}
}
verbose("\nSent sector No.%d", sectNo);
if ((sectNo+1) % 10 == 0) {
info("%3d%c", sectNo+1, ((sectNo+1) % 100 == 0) ? '\n' : ' ');
}
else {
info("%c\010", progressChar[sectNo % 10]);
}
sectNo++;
}
// close the file on the net disk
{
NetCloseFilePacket closeFile(0, studentNo, packetSender.GetNetFCB());
packetSender.SendPacketVal(closeFile);
if (!packetSender.ReceivePacket()) {
eggog("No ack of file close from %d\n", studentNo);
}
}
info("\nSendFile Done.\n");
}