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/*
* Worldvisions Weaver Software:
* Copyright (C) 1997-2004 Net Integration Technologies, Inc.
*/
#include "wvmagicloopback.h"
WvMagicLoopback::WvMagicLoopback(size_t size)
: circle(size), loop()
{
}
bool WvMagicLoopback::pre_select(SelectInfo &si)
{
loop.drain();
loop.pre_select(si);
if (si.wants.readable)
{
if (circle.used() > 0)
return true;
}
if (si.wants.writable)
{
if (circle.left() > 0)
return true;
}
return false;
}
size_t WvMagicLoopback::uread(void *buf, size_t len)
{
return circle.get(buf, len);
}
size_t WvMagicLoopback::uwrite(const void *buf, size_t len)
{
len = circle.put(buf, len);
if (len > 0)
loop.uwrite("", 1); // Make select wake up
return len;
}
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