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/* See LICENSE file for copyright and license details. */
#include "libgamma_LibgammaException.h"
#include <stdlib.h>
#include <string.h>
#include <libgamma.h>
/**
* 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(JNIEnv *env, jclass class, 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)
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(JNIEnv *env, jclass class, jstring name)
{
const char *name_chars;
int rc;
if (!name)
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(JNIEnv *env, jclass class)
{
return (jint)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(JNIEnv *env, jclass class)
{
/* 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)
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(JNIEnv *env, jclass class, 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)
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;
}
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