1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/*****************************************************************************
Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
more contributor license agreements. See the NOTICE file distributed
with this work for additional information regarding copyright ownership.
Accellera licenses this file to you under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with the
License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied. See the License for the specific language governing
permissions and limitations under the License.
*****************************************************************************/
/*****************************************************************************
Original Author: Mark Burton, GreenSocs
*****************************************************************************/
#ifndef ASYNC_EVENT_H
#define ASYNC_EVENT_H
/* this is a very simplistic implementation of an event that can be notified
* from a different thread. Ensuring that the normal systemc semantics of
* 'write-over-write' are maintained is left to the interested reader.
*/
class async_event : public sc_core::sc_prim_channel, public sc_event
{
private:
sc_core::sc_time m_delay;
public:
async_event(sc_module_name n = "")
{
async_attach_suspending();
}
void notify(sc_core::sc_time delay = SC_ZERO_TIME)
{
m_delay = delay; // no guarantee if event notified multiple times.
async_request_update();
}
protected:
void update(void)
{
sc_event::notify(m_delay);
}
};
#endif
|
