void communicator::communicate()
{
while(true)
{
//send or recv
send_or_recv();
//check_status
int any_done=check_status();
//post processing
if(any_done!=-1)
post_processing(any_done);
}
}
void Chip_to_Chip_Direct_to_Hypervisor_Zero_Copy_Endpoint::open(int i) {
Abstract_Zero_Copy_Command_Queue_Endpoint::open(i);
channel_id = tilepci_channel_id( channel_type(), chip_index);
if (channel_id == TILEPCI_EINVAL) {
lprintf("tilepci_channel_id %s failed: specified channel is not legal\n", send_or_recv());
fatal("");
}
char* msg;
int r = tilepci_open_channel(&context, channel_id);
if (!r) return; // success
switch (errno) {
case TILEPCI_ECHANNEL: msg = "TILEPCI_ECHANNEL: channel_id not legal"; break;
case ENXIO: msg = "ENXIO: channel's link is down"; break;
case EBUSY: msg = "EBUSY: channel currently in use by the device-file-based zero copy interface"; break;
default: msg = "unknown error"; break;
}
lprintf("tilepci_open_channel failed: channel_id %d, chip_index %d, result %d, errno %d: %s\n", channel_id, chip_index, r, errno, msg);
fatal("");
}
void Chip_to_Chip_Direct_to_Hypervisor_Zero_Copy_Endpoint::check_completion() {
assert_always_eq(completion.tag, test_tag);
assert_always(!completion.reset);
static bool kvetched = false;
if (!kvetched && completion.link_down) { kvetched = true; lprintf("link down on %d %s\n", chip_index, send_or_recv()); }
// assert_always(!completion.link_down);
assert_always_eq(completion.channel_id, command.channel_id);
}