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
145
146
147
148
149
150
151
152
|
#include <malloc.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <stddef.h>
#include "String.h"
#include "Exceptions.h"
#include "generic.h"
#ifdef HAVE_CONFIG_H
#include "config.h"
#else
#define _(x) x
#endif
char GeneralException::t[BUFSIZ];
GeneralException::GeneralException(String emsg) : msg(emsg.strdup()) {
#ifdef DEBUG
cerr << _("Generating a General Exception error: '") << msg << "'.\n";
#endif
}
GeneralException::GeneralException() : msg(0) {
#ifdef DEBUG
cerr << _("Generating a General Exception error: '") << msg << "'.\n";
#endif
}
GeneralException::GeneralException(const GeneralException & e) : msg(strdup(e.msg)) {
#ifdef DEBUG
cerr << _("Generating a General Exception error: '") << msg << "'.\n";
#endif
}
GeneralException::~GeneralException() {
free(msg);
}
TaskNotFound::TaskNotFound() : GeneralException("Task not found") { }
char * GeneralException::GetMsg() {
return msg;
}
MemoryException::MemoryException(ssize_t s) {
sprintf(t, _("Failed allocating %u bytes."), s);
msg = strdup(t);
}
IOException::IOException(String fn, op_t op, ssize_t s) {
sprintf(t, _("An error has occured while %s %u bytes on %s: %s"), op == IO_WRITE ? _("writing") : _("reading"),
s, fn.to_charp(), strerror(errno));
msg = strdup(t);
}
IOGeneral::IOGeneral(String fn) : GeneralException(fn) { }
IOGeneral::IOGeneral() { }
IOAgain::IOAgain() : IOGeneral(_("No more bytes for reading or writing.")) {
#ifdef DEBUG
cerr << "Generating an IOAgain exception: '" << GetMsg() << "'.\n";
#endif
}
TaskSwitch::TaskSwitch() : GeneralException(_("Switching task in a non-tasked environnement")) {
#ifdef DEBUG
cerr << "Generating a TaskSwitch exception: '" << GetMsg() << "'.\n";
#endif
}
char * xstrdup(const char * s) {
char * r;
r = (char *) xmalloc(strlen(s) + 1);
strcpy(r, s);
return r;
}
void * xmalloc(size_t s) throw (GeneralException) {
char * r;
if (!s) {
return 0;
}
if (!(r = (char *) ::malloc(s + sizeof(size_t)))) {
throw MemoryException(s + sizeof(size_t));
}
memset(r, 0, s + sizeof(size_t));
*((size_t *)r) = s;
return (void *)(r + sizeof(size_t));
}
void * xrealloc(void * ptr, size_t s) {
char * r;
size_t os;
if (!ptr) {
return xmalloc(s);
}
os = *(((size_t *) ptr) - 1);
r = (char *) xmalloc(s);
if (s) {
memcpy(r, ptr, MIN(s, os));
}
xfree(ptr);
return r;
}
#ifdef OVER_FREE
#undef free
#endif
void xfree(void *& p) {
if (p) {
::free(((char *)p) - sizeof(size_t));
p = 0;
}
}
void xfree(char *& p) {
if (p) {
::free(p - sizeof(size_t));
p = 0;
}
}
int xpipe(int * p, int flag) throw (GeneralException) {
if (pipe(p)) {
throw GeneralException(String(_("Error creating pipe: ")) + strerror(errno));
}
return p[flag];
}
pid_t xfork() throw (GeneralException) {
pid_t p;
p = fork();
if (p == -1) {
throw GeneralException(_("Was not able to fork().\n"));
}
return p;
}
|
