bool ring_fifo_is_full(ring_fifo_t *cobj)
{
struct s_ring_fifo_private * obj = (struct s_ring_fifo_private *)cobj;
PTR_CHECK_RETURN(obj, "ring_fifo", false);
return _full(obj);
}
BUFFER_PTR ring_fifo_zerocopy_push_start(ring_fifo_t * cobj)
{
struct s_ring_fifo_private * obj = (struct s_ring_fifo_private *)cobj;
PTR_CHECK_RETURN(obj, "ring_fifo", NULL);
if (_full(obj))
return NULL;
obj->nocp_push_started = true;
return _wr_ptr(obj);
}
bool LuaRunBuffer::addString(const std::string &str, bool blocking) {
if (!_script.isValid()) {
VRJLUA_MSG_START(dbgVRJLUA_BUFFER, MSG_WARNING)
<< "in AddString, but init not run with a valid LuaScript "
"state!" << VRJLUA_MSG_END(dbgVRJLUA_BUFFER, MSG_WARNING);
return false;
}
vpr::Guard<vpr::CondVar> guard(_cond, blocking);
if (guard.locked()) {
if (!blocking) {
// Non-blocking case: If it's full, bail out
if (_full()) {
VRJLUA_MSG_START(dbgVRJLUA_BUFFER, MSG_STATUS)
<< "Buffer full, so returning false..."
<< VRJLUA_MSG_END(dbgVRJLUA_BUFFER, MSG_STATUS);
return false;
}
} else {
// Blocking case: wait on the condition variable
while (_full()) {
_cond.wait();
}
}
// OK, so we have space. Put it in, increase the number,
// and get out of this critical region!
_buf.push_back(str);
return true;
} else {
VRJLUA_MSG_START(dbgVRJLUA_BUFFER, MSG_STATUS)
<< "Could not acquire buffer lock for producing, returning "
"false..." << VRJLUA_MSG_END(dbgVRJLUA_BUFFER, MSG_STATUS);
return false;
}
}
bool ring_fifo_push(ring_fifo_t *cobj, BUFFER_PTR_RDOLY copy_src)
{
struct s_ring_fifo_private * obj = (struct s_ring_fifo_private *)cobj;
PTR_CHECK_RETURN(obj, "ring_fifo", false);
if (_full(obj))
return false;
if (!copy_src)
return false;
memcpy(_wr_ptr(obj), copy_src, obj->element_size);
obj->wr++;
return true;
}
