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
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/**
* @file llrun.h
* @author Phoenix
* @date 2006-02-16
* @brief Declaration of LLRunner and LLRunnable classes.
*
* Copyright (c) 2006-$CurrentYear$, Linden Research, Inc.
* $License$
*/
#ifndef LL_LLRUN_H
#define LL_LLRUN_H
#include <vector>
#include <boost/shared_ptr.hpp>
class LLRunnable;
/**
* @class LLRunner
* @brief This class manages a set of LLRunnable objects.
*
* An instance of this class has a collection of LLRunnable objects
* which are scheduled to run on a repeating or one time basis.
* @see LLRunnable
*/
class LLRunner
{
public:
/**
* @brief The pointer to a runnable.
*/
typedef boost::shared_ptr<LLRunnable> run_ptr_t;
/**
* @brief The handle for use in the API.
*/
typedef S64 run_handle_t;
/**
* @brief Constructor.
*/
LLRunner();
/**
* @brief Destructor.
*/
~LLRunner();
/**
* @brief Enumeration which specifies when to run.
*/
enum ERunSchedule
{
// The runnable will run in N seconds
RUN_IN,
// The run every N seconds
RUN_EVERY,
// A count of the run types
RUN_SCHEDULE_COUNT
};
/**
* @brief Run the runnables which are scheduled to run
*
* @return Returns the number of runnables run.
*/
S32 run();
/**
* @brief Add a runnable to the run list.
*
* The handle of the runnable is unique to each addition. If the
* same runnable is added a second time with the same or different
* schedule, this method will return a new handle.
* @param runnable The runnable to run() on schedule.
* @param schedule Specifies the run schedule.
* @param seconds When to run the runnable as interpreted by schedule.
* @return Returns the handle to the runnable. handle == 0 means failure.
*/
run_handle_t addRunnable(
run_ptr_t runnable,
ERunSchedule schedule,
F64 seconds);
/**
* @brief Remove the specified runnable.
*
* @param handle The handle of the runnable to remove.
* @return Returns the pointer to the runnable removed which may
* be empty.
*/
run_ptr_t removeRunnable(run_handle_t handle);
protected:
struct LLRunInfo
{
run_handle_t mHandle;
run_ptr_t mRunnable;
ERunSchedule mSchedule;
F64 mNextRunAt;
F64 mIncrement;
LLRunInfo(
run_handle_t handle,
run_ptr_t runnable,
ERunSchedule schedule,
F64 next_run_at,
F64 increment);
};
typedef std::vector<LLRunInfo> run_list_t;
run_list_t mRunOnce;
run_list_t mRunEvery;
run_handle_t mNextHandle;
};
/**
* @class LLRunnable
* @brief Abstract base class for running some scheduled process.
*
* Users of the LLRunner class are expected to derive a concrete
* implementation of this class which overrides the run() method to do
* something useful.
* @see LLRunner
*/
class LLRunnable
{
public:
LLRunnable();
virtual ~LLRunnable();
/**
* @brief Do the process.
*
* This method will be called from the LLRunner according to
* @param runner The Runner which call run().
* @param handle The handle this run instance is run under.
*/
virtual void run(LLRunner* runner, S64 handle) = 0;
};
#endif // LL_LLRUN_H
|
