本文整理汇总了C++中AsioSession::onAsyncFunctionAwait方法的典型用法代码示例。如果您正苦于以下问题：C++ AsioSession::onAsyncFunctionAwait方法的具体用法？C++ AsioSession::onAsyncFunctionAwait怎么用？C++ AsioSession::onAsyncFunctionAwait使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类AsioSession的用法示例。
在下文中一共展示了AsioSession::onAsyncFunctionAwait方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: run
void c_AsyncFunctionWaitHandle::run() {
// may happen if scheduled in multiple contexts
if (getState() != STATE_SCHEDULED) {
return;
}
try {
setState(STATE_RUNNING);
// resume async function
if (LIKELY(m_child->isSucceeded())) {
// child succeeded, pass the result to the async function
g_context->resumeAsyncFunc(resumable(), m_child, m_child->getResult());
} else if (m_child->isFailed()) {
// child failed, raise the exception inside the async function
g_context->resumeAsyncFuncThrow(resumable(), m_child,
m_child->getException());
} else {
throw FatalErrorException(
"Invariant violation: child neither succeeded nor failed");
}
retry:
// async function reached RetC, which already set m_resultOrException
if (isSucceeded()) {
m_child = nullptr;
markAsSucceeded();
return;
}
// async function reached AsyncSuspend, which already set m_child
assert(!m_child->isFinished());
assert(m_child->instanceof(c_WaitableWaitHandle::classof()));
// import child into the current context, detect cross-context cycles
try {
child()->enterContext(getContextIdx());
} catch (Object& e) {
g_context->resumeAsyncFuncThrow(resumable(), m_child, e.get());
goto retry;
}
// detect cycles
if (UNLIKELY(isDescendantOf(child()))) {
Object e(createCycleException(child()));
g_context->resumeAsyncFuncThrow(resumable(), m_child, e.get());
goto retry;
}
// on await callback
AsioSession* session = AsioSession::Get();
if (UNLIKELY(session->hasOnAsyncFunctionAwaitCallback())) {
session->onAsyncFunctionAwait(this, m_child);
}
// set up dependency
setState(STATE_BLOCKED);
blockOn(child());
} catch (const Object& exception) {
// process exception thrown by the async function
m_child = nullptr;
markAsFailed(exception);
} catch (...) {
// process C++ exception
m_child = nullptr;
markAsFailed(AsioSession::Get()->getAbruptInterruptException());
throw;
}
}示例2: run
void c_AsyncFunctionWaitHandle::run() {
// may happen if scheduled in multiple contexts
if (getState() != STATE_SCHEDULED) {
return;
}
try {
setState(STATE_RUNNING);
// iterate continuation
if (LIKELY(m_child->isSucceeded())) {
// child succeeded, pass the result to the continuation
m_continuation->call_send(m_child->getResult());
} else if (m_child->isFailed()) {
// child failed, raise the exception inside continuation
m_continuation->call_raise(m_child->getException());
} else {
throw FatalErrorException(
"Invariant violation: child neither succeeded nor failed");
}
// continuation finished, retrieve result from its m_value
if (m_continuation->done()) {
markAsSucceeded(*m_continuation->m_value.asCell());
return;
}
retry:
// save child
Cell* value = tvAssertCell(m_continuation->m_value.asTypedValue());
assert(dynamic_cast<c_WaitableWaitHandle*>(c_WaitHandle::fromCell(value)));
m_child = static_cast<c_WaitableWaitHandle*>(value->m_data.pobj);
assert(!m_child->isFinished());
// import child into the current context, detect cross-context cycles
try {
m_child->enterContext(getContextIdx());
} catch (Object& e) {
m_continuation->call_raise(e.get());
goto retry;
}
// detect cycles
if (UNLIKELY(isDescendantOf(m_child.get()))) {
Object e(createCycleException(m_child.get()));
m_continuation->call_raise(e.get());
goto retry;
}
// on await callback
AsioSession* session = AsioSession::Get();
if (UNLIKELY(session->hasOnAsyncFunctionAwaitCallback())) {
session->onAsyncFunctionAwait(this, m_child.get());
}
// set up dependency
blockOn(m_child.get());
} catch (const Object& exception) {
// process exception thrown by the async function
markAsFailed(exception);
} catch (...) {
// process C++ exception
markAsFailed(AsioSession::Get()->getAbruptInterruptException());
throw;
}
}