jobject Java_com_rprata_socketjni_socket_SocketResource_nativeStartLocalClient(JNIEnv* env, jobject obj, jstring name)
{
int clientSocket = NewLocalSocket(env, obj);
if (NULL == env->ExceptionOccurred())
{
const char * nameText = env->GetStringUTFChars(name, NULL);
if (NULL == nameText)
goto exit;
// Connect to IP address and port
ConnectToLocalAddress(env, obj, clientSocket, nameText);
// Release the IP address
env->ReleaseStringUTFChars(name, nameText);
// If connection was successful
if (NULL != env->ExceptionOccurred())
goto exit;
// jobject fdObject = jniCreateFileDescriptor(env, clientSocket);
jclass class_fdesc = env->FindClass("java/io/FileDescriptor");
jmethodID const_fdesc = env->GetMethodID(class_fdesc, "<init>", "()V");
if (const_fdesc == NULL) return NULL;
jobject fdObject = env->NewObject(class_fdesc, const_fdesc);
jfieldID field_fd = env->GetFieldID(class_fdesc, "descriptor", "I");
if (field_fd == NULL) return NULL;
env->SetIntField(fdObject, field_fd, clientSocket);
return fdObject;
}
exit:
if (clientSocket > 0)
{
close(clientSocket);
}
return NULL;
}
void Java_com_apress_echo_LocalEchoActivity_nativeStartLocalServer(
JNIEnv* env,
jobject obj,
jstring name)
{
// Construct a new local UNIX socket.
int serverSocket = NewLocalSocket(env, obj);
if (NULL == env->ExceptionOccurred())
{
// Get name as C string
const char* nameText = env->GetStringUTFChars(name, NULL);
if (NULL == nameText)
goto exit;
// Bind socket to a port number
BindLocalSocketToName(env, obj, serverSocket, nameText);
// Release the name text
env->ReleaseStringUTFChars(name, nameText);
// If bind is failed
if (NULL != env->ExceptionOccurred())
goto exit;
// Listen on socket with a backlog of 4 pending connections
ListenOnSocket(env, obj, serverSocket, 4);
if (NULL != env->ExceptionOccurred())
goto exit;
// Accept a client connection on socket
int clientSocket = AcceptOnLocalSocket(env, obj, serverSocket);
if (NULL != env->ExceptionOccurred())
goto exit;
char buffer[MAX_BUFFER_SIZE];
ssize_t recvSize;
ssize_t sentSize;
// Receive and send back the data
while (1)
{
// Receive from the socket
recvSize = ReceiveFromSocket(env, obj, clientSocket,
buffer, MAX_BUFFER_SIZE);
if ((0 == recvSize) || (NULL != env->ExceptionOccurred()))
break;
// Send to the socket
sentSize = SendToSocket(env, obj, clientSocket,
buffer, (size_t) recvSize);
if ((0 == sentSize) || (NULL != env->ExceptionOccurred()))
break;
}
// Close the client socket
close(clientSocket);
}
exit:
if (serverSocket > 0)
{
close(serverSocket);
}
}
void Java_com_rprata_socketjni_socket_SocketResource_nativeStartLocalServer(JNIEnv* env, jobject obj, jstring name, jstring filename)
{
// Construct a new local UNIX socket.
int serverSocket = NewLocalSocket(env, obj);
if (NULL == env->ExceptionOccurred())
{
// Get filename from String class
const char * utf8 = env->GetStringUTFChars(filename, NULL);
FILE * file = fopen(utf8, "rb");
if (file == NULL)
{
LOGI("Erro ao abrir o arquivo");
goto exit;
}
env->ReleaseStringUTFChars(filename, utf8);
// Get name as C string
const char * nameText = env->GetStringUTFChars(name, NULL);
if (NULL == nameText)
goto exit;
// Bind socket to a port number
BindLocalSocketToName(env, obj, serverSocket, nameText);
// Release the name text
env->ReleaseStringUTFChars(name, nameText);
// If bind is failed
if (NULL != env->ExceptionOccurred())
goto exit;
// Listen on socket with a backlog of 4 pending connections
ListenOnSocket(env, obj, serverSocket, 4);
if (NULL != env->ExceptionOccurred())
goto exit;
// Accept a client connection on socket
int clientSocket = AcceptOnLocalSocket(env, obj, serverSocket);
if (NULL != env->ExceptionOccurred())
goto exit;
char buffer[MAX_BUFFER_SIZE];
ssize_t recvSize;
ssize_t sentSize;
size_t bytesRead;
// Receive and send back the data
while ((bytesRead = fread(videoBuffer, 1, BUFFER_SIZE, file)) > 0)
{
sentSize = SendToSocket(env, obj, clientSocket,
videoBuffer, bytesRead);
}
// Close the client socket
close(clientSocket);
}
exit:
if (serverSocket > 0)
{
close(serverSocket);
}
}
