Circular-dependancy-protected reference-counting object base class.
#include <crefptr.hh>
void init_done (int code=0)
After calling this, the object is destroyed without references.
static int set_default_tag (int tag)
Set the default tag for when init_done is called. static void check (bool fatal=true)
Check if all objects have called init_done.
crefbase ()
Constructor, which is called when an object is created. virtual ~crefbase ()
Virtual destructor, which does nothing except allowing derived class to have a virtual destructor.
template<typename _T > class crefptr
Circular-dependancy-protected reference-counting object base class.
Objects which derive from this class are reference-counted in a way that detects dependency loops and destroys the entire loop when it is no longer externally referenced. For this, it is important that objects which contain pointers register them appropriately.
Check if all objects have called init_done. When debugging is enabled, this function checks for all objects if they have called init_done. When debugging is not enabled, no list of objects is kept, and this check does nothing.
After calling this, the object is destroyed without references. On creation, an object does not have any references. To prevent immediate destruction, it is first in an initialisation phase. During that phase, it will not be destroyed, even if it has no references. This function should be called immeiately after creating the object (normally through crefptr::init): shevek::crefptr <foo> bar = foo::create ().init (); If code is not given or 0, the default tag (set with set_default_tag) will be used.
Set the default tag for when init_done is called. If the tag is not set to 1, a message will be printed to standard error on destruction. The previous tag is returned. If tag is set to 0, the old value is not changed. The initial default value is 1.
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