fifo_put_get.hh revision 13521:74fa3ac44057 
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3  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
4  more contributor license agreements.  See the NOTICE file distributed
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6  Accellera licenses this file to you under the Apache License, Version 2.0
7  (the "License"); you may not use this file except in compliance with the
8  License.  You may obtain a copy of the License at
9
10    http://www.apache.org/licenses/LICENSE-2.0
11
12  Unless required by applicable law or agreed to in writing, software
13  distributed under the License is distributed on an "AS IS" BASIS,
14  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
15  implied.  See the License for the specific language governing
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19
20#ifndef __TLM_CORE_1_REQ_RSP_CHANNELS_FIFO_FIFO_PUT_GET_HH__
21#define __TLM_CORE_1_REQ_RSP_CHANNELS_FIFO_FIFO_PUT_GET_HH__
22
23namespace tlm
24{
25
26// Get interface.
27template <typename T>
28inline T
29tlm_fifo<T>::get(tlm_tag<T> *)
30{
31    while (is_empty()) {
32        wait(m_data_written_event);
33    }
34
35    m_num_read++;
36    request_update();
37
38    return buffer.read();
39}
40
41// Non-blocking read.
42template <typename T>
43inline bool
44tlm_fifo<T>::nb_get(T &val_)
45{
46    if (is_empty()) {
47        return false;
48    }
49
50    m_num_read++;
51    request_update();
52
53    val_ = buffer.read();
54
55    return true;
56}
57
58template <typename T>
59inline bool
60tlm_fifo<T>::nb_can_get(tlm_tag<T> *) const
61{
62    return !is_empty();
63}
64
65
66// Put interface.
67template <typename T>
68inline void
69tlm_fifo<T>::put(const T &val_)
70{
71    while (is_full()) {
72        wait(m_data_read_event);
73    }
74
75    if (buffer.is_full()) {
76        buffer.resize(buffer.size() * 2);
77    }
78
79    m_num_written++;
80    buffer.write(val_);
81
82    request_update();
83}
84
85template <typename T>
86inline bool
87tlm_fifo<T>::nb_put(const T &val_)
88{
89    if (is_full()) {
90        return false;
91    }
92
93    if (buffer.is_full()) {
94        buffer.resize(buffer.size() * 2);
95    }
96
97    m_num_written++;
98    buffer.write(val_);
99    request_update();
100
101    return true;
102}
103
104template <typename T>
105inline bool
106tlm_fifo<T>::nb_can_put(tlm_tag<T> *) const
107{
108    return !is_full();
109}
110
111} // namespace tlm
112
113#endif /* __TLM_CORE_1_REQ_RSP_CHANNELS_FIFO_FIFO_PUT_GET_HH__ */
114