On Saturday, 7 June 2014 at 21:18:39 UTC, Denis Martinez wrote:
2. Is it possible to make a delegate to be allocated on the
heap ?
I think of a syntax such as:
client.process_callback = new delegate int(jack_nframes_t
nframes) {
AFAIK, no.
3. I have coded a workaround for the time being.
The function here copies the delegate into a heap-allocated
structure, and takes the interior pointer.
T *copyDelegate(T)(T dg) {
struct Tmp { T dg; }
auto x = new Tmp;
x.dg = dg;
return &x.dg;
}
I'll have to note that if you're passing this somewhere in C, D
won't be keeping track of it automatically anymore. Thus, it's
very likely your delegate will be garbage collected at some point
(thus the memory might be repurposed for other things causing a
similar issue to what you're having now).
Ultimately, I think if you want to keep the delegate around it's
probably simpler to store it somewhere and use the pointer to
that somewhere. See: http://dlang.org/interfaceToC.html for more
info.
