1 /**
2 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
3 * SPDX-License-Identifier: Apache-2.0.
4 */
5 #include <jni.h>
6
7 #include <aws/io/host_resolver.h>
8
9 #include "crt.h"
10 #include "java_class_ids.h"
11
12 /* on 32-bit platforms, casting pointers to longs throws a warning we don't need */
13 #if UINTPTR_MAX == 0xffffffff
14 # if defined(_MSC_VER)
15 # pragma warning(push)
16 # pragma warning(disable : 4305) /* 'type cast': truncation from 'jlong' to 'aws_event_loop_group *' */
17 # else
18 # pragma GCC diagnostic push
19 # pragma GCC diagnostic ignored "-Wpointer-to-int-cast"
20 # pragma GCC diagnostic ignored "-Wint-to-pointer-cast"
21 # endif
22 #endif
23
Java_software_amazon_awssdk_crt_io_HostResolver_hostResolverNew(JNIEnv * env,jclass jni_class,jlong jni_elg,jint max_entries)24 JNIEXPORT jlong JNICALL Java_software_amazon_awssdk_crt_io_HostResolver_hostResolverNew(
25 JNIEnv *env,
26 jclass jni_class,
27 jlong jni_elg,
28 jint max_entries) {
29
30 (void)jni_class;
31 aws_cache_jni_ids(env);
32
33 struct aws_allocator *allocator = aws_jni_get_allocator();
34 struct aws_event_loop_group *el_group = (struct aws_event_loop_group *)jni_elg;
35
36 if (!el_group) {
37 aws_jni_throw_runtime_exception(env, "HostResolver.hostResolverNew: Invalid EventLoopGroup");
38 return (jlong)NULL;
39 }
40
41 if (max_entries <= 0) {
42 aws_jni_throw_runtime_exception(env, "HostResolver.hostResolverNew: max_entries must be >= 0");
43 return (jlong)NULL;
44 }
45
46 struct aws_host_resolver_default_options resolver_options = {
47 .max_entries = max_entries,
48 .el_group = el_group,
49 };
50
51 struct aws_host_resolver *resolver = aws_host_resolver_new_default(allocator, &resolver_options);
52 if (resolver == NULL) {
53 aws_jni_throw_runtime_exception(env, "aws_host_resolver_new_default failed");
54 return (jlong)NULL;
55 }
56
57 return (jlong)resolver;
58 }
59
Java_software_amazon_awssdk_crt_io_HostResolver_hostResolverRelease(JNIEnv * env,jclass jni_class,jlong jni_host_resolver)60 JNIEXPORT void JNICALL Java_software_amazon_awssdk_crt_io_HostResolver_hostResolverRelease(
61 JNIEnv *env,
62 jclass jni_class,
63 jlong jni_host_resolver) {
64
65 (void)jni_class;
66 aws_cache_jni_ids(env);
67
68 struct aws_host_resolver *resolver = (struct aws_host_resolver *)jni_host_resolver;
69 if (!resolver) {
70 aws_jni_throw_runtime_exception(env, "HostResolver.hostResolverRelease: Invalid aws_host_resolver");
71 return;
72 }
73
74 aws_host_resolver_release(resolver);
75
76 return;
77 }
78
79 #if UINTPTR_MAX == 0xffffffff
80 # if defined(_MSC_VER)
81 # pragma warning(pop)
82 # else
83 # pragma GCC diagnostic pop
84 # endif
85 #endif
86