/
Error.c
131 lines (102 loc) · 2.18 KB
/
Error.c
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
#include "Error.h"
#include "LinkedList.h"
#include "allocation.h"
/*
As i'm mostly writing C code, not using the C++ exception handling, it's nice to have some general error-description and -handling code present.
-- Wim Decelle
*/
LinkedList * ErrorStack=0;
LinkedList * ErrorHandlerStack=0;
void DeleteErrorStack(void * par);
void DeleteErrorHandlerStack(void * par);
void PushErrorHandler(ErrorHandler handler)
{
if(!ErrorHandlerStack)
ErrorHandlerStack=LL_create();
LL_push(ErrorHandlerStack,(void *)handler);
return;
}
void PopErrorHandler()
{
if(ErrorHandlerStack&&(ErrorHandlerStack->itemcount))
LL_pop(ErrorHandlerStack);
return;
}
Error * CreateError(int id, char * description, void * data, Error * inner)
{
Error * toreturn;
toreturn=alloc(sizeof(Error));
toreturn->id=id;
toreturn->description=description;
toreturn->data=data;
toreturn->inner=inner;
return toreturn;
}
void PushError(Error * topush)
{
LinkedListEnum * llenum;
ErrorHandler curhandler;
if(!ErrorStack)
ErrorStack=LL_create();
LL_push(ErrorStack,(void *)topush);
if(ErrorHandlerStack)
{
llenum=LL_newenum(ErrorHandlerStack);
curhandler=(ErrorHandler)LL_end(llenum);
while(curhandler)
{
curhandler();
curhandler=(ErrorHandler)LL_previous(llenum);
}
LL_enumdelete(llenum);
}
return;
}
Error * PopError()
{
if(ErrorStack&&(ErrorStack->itemcount))
return LL_pop(ErrorStack);
else
return 0;
}
Error * PeekError()
{
if(ErrorStack&&(ErrorStack->tail))
return (Error *)ErrorStack->tail->value;
else
return 0;
}
int ErrorCount()
{
if(ErrorStack)
return ErrorStack->itemcount;
else
return 0;
}
void DeleteError(Error * todelete)
{
if(todelete->inner)
DeleteError(todelete);
clean((void *)todelete);
return;
}
void DeleteErrorHandlerStack(void * par)
{
if(ErrorHandlerStack)
{
LL_delete(ErrorHandlerStack);
ErrorHandlerStack=0;
}
return;
}
void DeleteErrorStack(void * par)
{
if(ErrorStack)
{
while(ErrorStack->itemcount)
DeleteError((Error *)LL_pop(ErrorStack));
LL_delete(ErrorStack);
ErrorStack=0;
}
return;
}