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
|
/**
* jlibgamma -- Display server abstraction layer for gamma ramp and Java
* Copyright (C) 2014 Mattias Andrée (maandree@member.fsf.org)
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "libgamma_LibgammaException.h"
#include <stdlib.h>
#include <string.h>
#include <libgamma.h>
#define J JNIEnv* env, jclass class
/**
* Returns the name of the definition associated with
* a <tt>libgamma</tt> error code.
*
* @param value The error code.
* @return The name of the definition associated with the error code,
* {@code null} if the error code does not exist.
*/
jstring Java_libgamma_LibgammaException_name_1of_1error(J, jint value)
{
/* It is really unlikely that `malloc` returns `NULL` here
* and error handing makes this unnecessarily comples,
* therefore we will simply skip it. */
const char* do_not_free_this = libgamma_name_of_error(value);
char* this_will_be_freed;
size_t n;
if (do_not_free_this == NULL)
return NULL;
n = strlen(do_not_free_this) + 1;
this_will_be_freed = malloc(n * sizeof(char));
memcpy(this_will_be_freed, do_not_free_this, n * sizeof(char));
return (*env)->NewStringUTF(env, this_will_be_freed);
(void) class;
}
/**
* Return the value of a <tt>libgamma</tt> error definition
* refered to by name.
*
* @param name The name of the definition associated with the error code.
* @return The error code, zero if the name is {@code null}
* or does not refer to a <tt>libgamma</tt> error.
*/
jint Java_libgamma_LibgammaException_value_1of_1error(J, jstring name)
{
const char* name_chars;
int rc;
if (name == NULL)
return 0;
name_chars = (*env)->GetStringUTFChars(env, name, NULL);
rc = libgamma_value_of_error(name_chars);
(*env)->ReleaseStringUTFChars(env, name, name_chars);
return rc;
(void) class;
}
/**
* Acquire the value that should go to {@link #group_gid}.
*
* @return The value that should go to {@link #group_gid}.
*/
jint Java_libgamma_LibgammaException_libgamma_1group_1gid(J)
{
return libgamma_group_gid;
(void) env;
(void) class;
}
/**
* Acquire the value that should go to {@link #group_name}.
*
* @return The value that should go to {@link #group_name}.
*/
jstring Java_libgamma_LibgammaException_libgamma_1group_1name(J)
{
/* It is really unlikely that `malloc` returns `NULL` here
* and error handing makes this unnecessarily comples,
* therefore we will simply skip it. */
const char* do_not_free_this = libgamma_group_name;
char* this_will_be_freed;
size_t n;
if (do_not_free_this == NULL)
return NULL;
n = strlen(do_not_free_this) + 1;
this_will_be_freed = malloc(n * sizeof(char));
memcpy(this_will_be_freed, do_not_free_this, n * sizeof(char));
return (*env)->NewStringUTF(env, this_will_be_freed);
(void) class;
}
/**
* Get a textual description of a system error code.
*
* @param error_code The error code.
* @return A textual description of the error code.
*/
jstring Java_libgamma_LibgammaException_strerror(J, jint error_code)
{
/* It is really unlikely that `malloc` returns `NULL` here
* and error handing makes this unnecessarily comples,
* therefore we will simply skip it. */
const char* do_not_free_this = strerror(error_code);
char* this_will_be_freed;
size_t n;
if (do_not_free_this == NULL)
return NULL;
n = strlen(do_not_free_this) + 1;
this_will_be_freed = malloc(n * sizeof(char));
memcpy(this_will_be_freed, do_not_free_this, n * sizeof(char));
return (*env)->NewStringUTF(env, this_will_be_freed);
(void) class;
}
|
