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
|
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "Input.h"
#include "Exceptions.h"
#ifdef HAVE_CONFIG_H
#include "config.h"
#else
#define _(x) x
#endif
Input::Input(const String & no) throw (GeneralException) :
Handle(no.strlen() ? open(no.to_charp(), O_RDONLY) : dup(0)),
n(no) {
#ifdef DEBUG
fprintf(stderr, "Opening file %s, Input at %p\n", no.to_charp(), this);
#endif
if (GetHandle() < 0) {
throw IOGeneral(String(_("Error opening file ")) + no + _(" for reading: ") + strerror(errno));
}
struct stat s;
fstat(GetHandle(), &s);
date_modif = s.st_mtime;
if (S_ISREG(s.st_mode)) {
size = seek(0, SEEK_END);
seek(0, SEEK_SET);
}
}
Input::Input(const Input & i) : Handle(i), n(i.n), size(i.size), date_modif(i.date_modif) {
}
bool Input::CanWrite() const {
return 0;
}
bool Input::CanRead() const {
return 1;
}
bool Input::CanSeek() const {
struct stat s;
fstat(GetHandle(), &s);
return S_ISREG(s.st_mode);
}
String Input::GetName() const {
return n;
}
ssize_t Input::GetSize() const {
return size;
}
time_t Input::GetModif() const {
return date_modif;
}
off_t Input::seek(off_t offset, int whence) throw (GeneralException) {
if ((itell = lseek(GetHandle(), offset, whence)) < 0) {
throw IOGeneral(String(_("Error seeking file ")) + GetName() + _(": ") + strerror(errno));
}
#ifdef PARANOID_SEEK
if (itell != lseek(GetHandle(), 0, SEEK_CUR)) {
throw IOGeneral(String(_("Error seeking file ")) + GetName() + _(": the position does not match"));
}
#endif
return itell;
}
Stdin_t::Stdin_t() { }
bool Stdin_t::CanSeek() const {
return 0;
}
String Stdin_t::GetName() const {
return "Stdin";
}
Stdin_t Stdin;
|
