37 |
32 |
38 #if defined(__linux__) || defined(_ALLBSD_SOURCE) |
33 #if defined(__linux__) || defined(_ALLBSD_SOURCE) |
39 #include <netinet/in.h> |
34 #include <netinet/in.h> |
40 #endif |
35 #endif |
41 |
36 |
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37 #include "jni.h" |
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38 #include "jni_util.h" |
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39 #include "jlong.h" |
42 #include "net_util.h" |
40 #include "net_util.h" |
43 #include "net_util_md.h" |
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44 #include "nio.h" |
41 #include "nio.h" |
45 #include "nio_util.h" |
42 #include "nio_util.h" |
46 |
43 |
47 #include "sun_nio_ch_DatagramChannelImpl.h" |
44 #include "sun_nio_ch_DatagramChannelImpl.h" |
48 |
45 |
49 static jfieldID dci_senderID; /* sender in sun.nio.ch.DatagramChannelImpl */ |
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50 static jfieldID dci_senderAddrID; /* sender InetAddress in sun.nio.ch.DatagramChannelImpl */ |
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51 static jfieldID dci_senderPortID; /* sender port in sun.nio.ch.DatagramChannelImpl */ |
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52 static jclass isa_class; /* java.net.InetSocketAddress */ |
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53 static jmethodID isa_ctorID; /* .InetSocketAddress(InetAddress, int) */ |
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54 |
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55 JNIEXPORT void JNICALL |
46 JNIEXPORT void JNICALL |
56 Java_sun_nio_ch_DatagramChannelImpl_initIDs(JNIEnv *env, jclass clazz) |
47 Java_sun_nio_ch_DatagramChannelImpl_disconnect0(JNIEnv *env, jclass clazz, |
57 { |
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58 clazz = (*env)->FindClass(env, "java/net/InetSocketAddress"); |
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59 CHECK_NULL(clazz); |
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60 isa_class = (*env)->NewGlobalRef(env, clazz); |
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61 if (isa_class == NULL) { |
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62 JNU_ThrowOutOfMemoryError(env, NULL); |
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63 return; |
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64 } |
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65 isa_ctorID = (*env)->GetMethodID(env, clazz, "<init>", |
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66 "(Ljava/net/InetAddress;I)V"); |
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67 CHECK_NULL(isa_ctorID); |
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68 |
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69 clazz = (*env)->FindClass(env, "sun/nio/ch/DatagramChannelImpl"); |
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70 CHECK_NULL(clazz); |
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71 dci_senderID = (*env)->GetFieldID(env, clazz, "sender", |
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72 "Ljava/net/SocketAddress;"); |
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73 CHECK_NULL(dci_senderID); |
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74 dci_senderAddrID = (*env)->GetFieldID(env, clazz, |
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75 "cachedSenderInetAddress", |
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76 "Ljava/net/InetAddress;"); |
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77 CHECK_NULL(dci_senderAddrID); |
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78 dci_senderPortID = (*env)->GetFieldID(env, clazz, |
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79 "cachedSenderPort", "I"); |
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80 CHECK_NULL(dci_senderPortID); |
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81 } |
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82 |
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83 JNIEXPORT void JNICALL |
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84 Java_sun_nio_ch_DatagramChannelImpl_disconnect0(JNIEnv *env, jobject this, |
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85 jobject fdo, jboolean isIPv6) |
48 jobject fdo, jboolean isIPv6) |
86 { |
49 { |
87 jint fd = fdval(env, fdo); |
50 jint fd = fdval(env, fdo); |
88 int rv; |
51 int rv; |
89 |
52 |
120 if (rv < 0) |
83 if (rv < 0) |
121 handleSocketError(env, errno); |
84 handleSocketError(env, errno); |
122 } |
85 } |
123 |
86 |
124 JNIEXPORT jint JNICALL |
87 JNIEXPORT jint JNICALL |
125 Java_sun_nio_ch_DatagramChannelImpl_receive0(JNIEnv *env, jobject this, |
88 Java_sun_nio_ch_DatagramChannelImpl_receive0(JNIEnv *env, jclass clazz, |
126 jobject fdo, jlong address, |
89 jobject fdo, jlong bufAddress, |
127 jint len, jboolean connected) |
90 jint len, jlong senderAddress, |
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91 jboolean connected) |
128 { |
92 { |
129 jint fd = fdval(env, fdo); |
93 jint fd = fdval(env, fdo); |
130 void *buf = (void *)jlong_to_ptr(address); |
94 void *buf = (void *)jlong_to_ptr(bufAddress); |
131 SOCKETADDRESS sa; |
95 SOCKETADDRESS *sa = (SOCKETADDRESS *)jlong_to_ptr(senderAddress); |
132 socklen_t sa_len = sizeof(SOCKETADDRESS); |
96 socklen_t sa_len = sizeof(SOCKETADDRESS); |
133 jboolean retry = JNI_FALSE; |
97 jboolean retry = JNI_FALSE; |
134 jint n = 0; |
98 jint n; |
135 jobject senderAddr; |
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136 |
99 |
137 if (len > MAX_PACKET_LEN) { |
100 if (len > MAX_PACKET_LEN) { |
138 len = MAX_PACKET_LEN; |
101 len = MAX_PACKET_LEN; |
139 } |
102 } |
140 |
103 |
141 do { |
104 do { |
142 retry = JNI_FALSE; |
105 retry = JNI_FALSE; |
143 n = recvfrom(fd, buf, len, 0, &sa.sa, &sa_len); |
106 n = recvfrom(fd, buf, len, 0, (struct sockaddr *)sa, &sa_len); |
144 if (n < 0) { |
107 if (n < 0) { |
145 if (errno == EAGAIN || errno == EWOULDBLOCK) { |
108 if (errno == EAGAIN || errno == EWOULDBLOCK) { |
146 return IOS_UNAVAILABLE; |
109 return IOS_UNAVAILABLE; |
147 } |
110 } |
148 if (errno == EINTR) { |
111 if (errno == EINTR) { |
150 } |
113 } |
151 if (errno == ECONNREFUSED) { |
114 if (errno == ECONNREFUSED) { |
152 if (connected == JNI_FALSE) { |
115 if (connected == JNI_FALSE) { |
153 retry = JNI_TRUE; |
116 retry = JNI_TRUE; |
154 } else { |
117 } else { |
155 JNU_ThrowByName(env, JNU_JAVANETPKG |
118 JNU_ThrowByName(env, JNU_JAVANETPKG "PortUnreachableException", 0); |
156 "PortUnreachableException", 0); |
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157 return IOS_THROWN; |
119 return IOS_THROWN; |
158 } |
120 } |
159 } else { |
121 } else { |
160 return handleSocketError(env, errno); |
122 return handleSocketError(env, errno); |
161 } |
123 } |
162 } |
124 } |
163 } while (retry == JNI_TRUE); |
125 } while (retry == JNI_TRUE); |
164 |
126 |
165 /* |
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166 * If the source address and port match the cached address |
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167 * and port in DatagramChannelImpl then we don't need to |
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168 * create InetAddress and InetSocketAddress objects. |
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169 */ |
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170 senderAddr = (*env)->GetObjectField(env, this, dci_senderAddrID); |
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171 if (senderAddr != NULL) { |
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172 if (!NET_SockaddrEqualsInetAddress(env, &sa, senderAddr)) { |
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173 senderAddr = NULL; |
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174 } else { |
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175 jint port = (*env)->GetIntField(env, this, dci_senderPortID); |
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176 if (port != NET_GetPortFromSockaddr(&sa)) { |
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177 senderAddr = NULL; |
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178 } |
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179 } |
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180 } |
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181 if (senderAddr == NULL) { |
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182 jobject isa = NULL; |
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183 int port = 0; |
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184 jobject ia = NET_SockaddrToInetAddress(env, &sa, &port); |
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185 if (ia != NULL) { |
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186 isa = (*env)->NewObject(env, isa_class, isa_ctorID, ia, port); |
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187 } |
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188 CHECK_NULL_RETURN(isa, IOS_THROWN); |
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189 |
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190 (*env)->SetObjectField(env, this, dci_senderAddrID, ia); |
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191 (*env)->SetIntField(env, this, dci_senderPortID, |
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192 NET_GetPortFromSockaddr(&sa)); |
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193 (*env)->SetObjectField(env, this, dci_senderID, isa); |
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194 } |
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195 return n; |
127 return n; |
196 } |
128 } |
197 |
129 |
198 JNIEXPORT jint JNICALL |
130 JNIEXPORT jint JNICALL |
199 Java_sun_nio_ch_DatagramChannelImpl_send0(JNIEnv *env, jobject this, |
131 Java_sun_nio_ch_DatagramChannelImpl_send0(JNIEnv *env, jclass clazz, |
200 jboolean preferIPv6, jobject fdo, jlong address, |
132 jboolean preferIPv6, jobject fdo, jlong address, |
201 jint len, jobject destAddress, jint destPort) |
133 jint len, jobject destAddress, jint destPort) |
202 { |
134 { |
203 jint fd = fdval(env, fdo); |
135 jint fd = fdval(env, fdo); |
204 void *buf = (void *)jlong_to_ptr(address); |
136 void *buf = (void *)jlong_to_ptr(address); |