本文整理汇总了C++中Activity::setInterpreterRoot方法的典型用法代码示例。如果您正苦于以下问题:C++ Activity::setInterpreterRoot方法的具体用法?C++ Activity::setInterpreterRoot怎么用?C++ Activity::setInterpreterRoot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Activity
的用法示例。
在下文中一共展示了Activity::setInterpreterRoot方法的1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: findActivity
/**
* Get a root activity for a new interpreter instance.
*
* @return The newly created activity.
*/
Activity *ActivityManager::getRootActivity()
{
// it's possible we already have an activity active for this thread. That
// most likely occurs in nested RexxStart() calls. Get that activity first,
// and if we have one, we'll need to push this down.
Activity *oldActivity = findActivity();
// we need to lock the kernel to have access to the memory manager to
// create this activity.
lockKernel();
// get a new activity object
Activity *activityObject = createCurrentActivity();
unlockKernel();
// mark this as the root activity for an interpreter instance. Some operations
// are only permitted from the root threads.
activityObject->setInterpreterRoot();
// Do we have a nested interpreter call occurring on the same thread? We need to
// mark the old activity as suspended, and chain this to the new activity.
if (oldActivity != OREF_NULL)
{
oldActivity->setSuspended(true);
// this pushes this down the stack.
activityObject->setNestedActivity(oldActivity);
}
// now we need to have this activity become the kernel owner.
activityObject->requestAccess();
// this will help ensure that the code after the request access call
// is only executed after access acquired.
sentinel = true;
activityObject->activate(); // let the activity know it's in use, potentially nested
// belt-and-braces. Make sure the current activity is explicitly set to
// this activity before leaving.
currentActivity = activityObject;
return activityObject;
}