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#include "rust_internal.h"
#include "rust_port.h"
rust_port::rust_port(rust_task *task, size_t unit_sz) :
maybe_proxy<rust_port>(this), task(task),
unit_sz(unit_sz), writers(task->dom), chans(task->dom) {
task->log(rust_log::MEM | rust_log::COMM,
"new rust_port(task=0x%" PRIxPTR ", unit_sz=%d) -> port=0x%"
PRIxPTR, (uintptr_t)task, unit_sz, (uintptr_t)this);
// Allocate a remote channel, for remote channel data.
remote_channel = new (task->dom) rust_chan(task, this, unit_sz);
}
rust_port::~rust_port() {
task->log(rust_log::COMM | rust_log::MEM,
"~rust_port 0x%" PRIxPTR, (uintptr_t) this);
log_state();
// Disassociate channels from this port.
while (chans.is_empty() == false) {
rust_chan *chan = chans.peek();
chan->disassociate();
if (chan->ref_count == 0) {
task->log(rust_log::COMM,
"chan: 0x%" PRIxPTR " is dormant, freeing", chan);
delete chan;
}
}
delete remote_channel;
}
bool rust_port::receive(void *dptr) {
for (uint32_t i = 0; i < chans.length(); i++) {
rust_chan *chan = chans[i];
if (chan->buffer.is_empty() == false) {
chan->buffer.dequeue(dptr);
task->log(rust_log::COMM, "<=== read data ===");
return true;
}
}
return false;
}
void rust_port::log_state() {
task->log(rust_log::COMM,
"rust_port: 0x%" PRIxPTR ", associated channel(s): %d",
this, chans.length());
for (uint32_t i = 0; i < chans.length(); i++) {
rust_chan *chan = chans[i];
task->log(rust_log::COMM,
"\tchan: 0x%" PRIxPTR ", size: %d, remote: %s",
chan,
chan->buffer.size(),
chan == remote_channel ? "yes" : "no");
}
}
//
// Local Variables:
// mode: C++
// fill-column: 78;
// indent-tabs-mode: nil
// c-basic-offset: 4
// buffer-file-coding-system: utf-8-unix
// compile-command: "make -k -C .. 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
// End:
//
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