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rt: Look up ports through a single port table

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Instead of a two-level lookup, just use one big table
This commit is contained in:
Brian Anderson
2012-03-14 17:24:19 -07:00
parent 337d860a87
commit b278d675a2
6 changed files with 67 additions and 69 deletions
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41
src/rt/rust_kernel.cpp
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@@ -18,6 +18,7 @@ rust_kernel::rust_kernel(rust_srv *srv) :
_log(srv, NULL),
srv(srv),
max_task_id(0),
max_port_id(0),
rval(0),
max_sched_id(0),
env(srv->env)
@@ -212,6 +213,46 @@ rust_kernel::get_task_by_id(rust_task_id id) {
return task;
}
rust_port_id
rust_kernel::register_port(rust_port *port) {
uintptr_t new_live_ports;
rust_port_id new_port_id;
{
scoped_lock with(port_lock);
new_port_id = max_port_id++;
port_table.put(new_port_id, port);
new_live_ports = port_table.count();
}
K(srv, new_port_id != INTPTR_MAX, "Hit the maximum port id");
KLOG_("Registered port %" PRIdPTR, new_port_id);
KLOG_("Total outstanding ports: %d", new_live_ports);
return new_port_id;
}
void
rust_kernel::release_port_id(rust_port_id id) {
KLOG_("Releasing port %" PRIdPTR, id);
uintptr_t new_live_ports;
{
scoped_lock with(port_lock);
port_table.remove(id);
new_live_ports = port_table.count();
}
KLOG_("Total outstanding ports: %d", new_live_ports);
}
rust_port *
rust_kernel::get_port_by_id(rust_port_id id) {
scoped_lock with(port_lock);
rust_port *port = NULL;
// get leaves port unchanged if not found.
port_table.get(id, &port);
if(port) {
port->ref();
}
return port;
}
#ifdef __WIN32__
void
rust_kernel::win32_require(LPCTSTR fn, BOOL ok) {