blob: ca5d521cebcdb71bc5c5ceab4ba94486b00a6bc6 (
plain)
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
|
#pragma once
#include <Task.h>
namespace Balau {
class StacklessTask : public Task {
public:
StacklessTask() : m_state(0) { setStackless(); }
protected:
void taskSwitch() throw (GeneralException) { throw TaskSwitch(); }
unsigned int m_state;
};
};
#define StacklessBegin() \
switch(m_state) { \
case 0: { \
#define StacklessOperation(operation) \
m_state = __LINE__; \
} \
case __LINE__: { \
try { \
operation; \
} \
catch (Balau::EAgain & e) { \
auto evt = e.getEvent(); \
waitFor(evt); \
taskSwitch(); \
} \
#define StacklessWaitFor(evt) \
m_state = __LINE__; \
waitFor(evt); \
taskSwitch(); \
} \
case __LINE__: { \
#define StacklessWait(cond) \
m_state = __LINE__; \
} \
case __LINE__: { \
if (!(cond)) \
taskSwitch(); \
#define StacklessYield() \
m_state = __LINE__; \
try { \
yield(true); \
} \
catch (Balau::EAgain & e) { \
taskSwitch(); \
} \
} \
case __LINE__: { \
#define StacklessEnd() \
} \
default: \
AssertHelper("unknown state", "State %i is out of range in task %s at %p", m_state, getName(), this); \
}
|