2
* Copyright (c) 2005, Eric Crahen
4
* Permission is hereby granted, free of charge, to any person obtaining a copy
5
* of this software and associated documentation files (the "Software"), to deal
6
* in the Software without restriction, including without limitation the rights
7
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8
* copies of the Software, and to permit persons to whom the Software is furnished
9
* to do so, subject to the following conditions:
11
* The above copyright notice and this permission notice shall be included in all
12
* copies or substantial portions of the Software.
14
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
18
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
30
* @author Eric Crahen <http://www.code-foo.com>
31
* @date <2003-07-16T20:04:01-0400>
34
* Class to encapsulate the current state of the threads life-cycle.
40
typedef enum { REFERENCE, IDLE, RUNNING, JOINED } STATE;
43
* Create State with the given flag set.
45
State(STATE initialState) : _state(initialState) {}
48
* Test for the IDLE state. No task has yet run.
51
return _state == IDLE;
55
* Test for the JOINED state. A task has completed and
56
* the thread is join()ed.
60
bool isJoined() const {
61
return _state == JOINED;
65
* Test for the RUNNING state. A task is in progress.
69
bool isRunning() const {
70
return _state == RUNNING;
74
* Test for the REFERENCE state. A task is in progress but not
75
* under control of this library.
79
bool isReference() const {
80
return _state == REFERENCE;
84
* Transition to the IDLE state.
86
* @return bool true if successful
99
* Transition to the RUNNING state.
101
* @return bool true if successful
114
* Transition to the REFERENCE state.
116
* @return bool true if successful
118
bool setReference() {
130
* Transition to the JOINED state.
132
* @return bool true if successful