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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "mojo/public/tests/simple_bindings_support.h"
#include <stdlib.h>
#include <algorithm>
namespace mojo {
namespace test {
SimpleBindingsSupport::SimpleBindingsSupport()
: buf_(NULL) {
BindingsSupport::Set(this);
}
SimpleBindingsSupport::~SimpleBindingsSupport() {
BindingsSupport::Set(NULL);
for (WaiterList::iterator it = waiters_.begin(); it != waiters_.end(); ++it)
delete *it;
}
Buffer* SimpleBindingsSupport::SetCurrentBuffer(Buffer* buf) {
// This is a simplistic implementation that assumes it is only ever used from
// a single thread, which is common in tests.
std::swap(buf_, buf);
return buf;
}
Buffer* SimpleBindingsSupport::GetCurrentBuffer() {
return buf_;
}
BindingsSupport::AsyncWaitID SimpleBindingsSupport::AsyncWait(
const Handle& handle,
MojoWaitFlags flags,
AsyncWaitCallback* callback) {
Waiter* waiter = new Waiter();
waiter->handle = handle;
waiter->flags = flags;
waiter->callback = callback;
waiters_.push_back(waiter);
return waiter;
}
void SimpleBindingsSupport::CancelWait(AsyncWaitID async_wait_id) {
Waiter* waiter = static_cast<Waiter*>(async_wait_id);
WaiterList::iterator it = waiters_.begin();
while (it != waiters_.end()) {
if (*it == waiter) {
WaiterList::iterator doomed = it++;
waiters_.erase(doomed);
} else {
++it;
}
}
delete waiter;
}
void SimpleBindingsSupport::Process() {
for (;;) {
typedef std::pair<AsyncWaitCallback*, MojoResult> Result;
std::list<Result> results;
WaiterList::iterator it = waiters_.begin();
while (it != waiters_.end()) {
Waiter* waiter = *it;
MojoResult result;
if (IsReady(waiter->handle, waiter->flags, &result)) {
results.push_back(std::make_pair(waiter->callback, result));
WaiterList::iterator doomed = it++;
waiters_.erase(doomed);
delete waiter;
} else {
++it;
}
}
for (std::list<Result>::const_iterator it = results.begin();
it != results.end();
++it) {
it->first->OnHandleReady(it->second);
}
if (results.empty())
break;
}
}
bool SimpleBindingsSupport::IsReady(const Handle& handle, MojoWaitFlags flags,
MojoResult* result) {
*result = Wait(handle, flags, 0);
return *result != MOJO_RESULT_DEADLINE_EXCEEDED;
}
} // namespace test
} // namespace mojo
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