KNIEXPORT KNI_RETURNTYPE_INT
Java_com_sun_cldc_io_j2me_socket_Protocol_writeBuf() {
int result;
int fd = KNI_GetParameterAsInt(1);
int offset = KNI_GetParameterAsInt(3);
int length = KNI_GetParameterAsInt(4);
KNI_StartHandles(1);
KNI_DeclareHandle(buffer_object);
KNI_GetParameterAsObject(2, buffer_object);
char *buffer = (char *) SNI_GetRawArrayPointer(buffer_object) + offset;
result = jvm_send(fd, buffer, length, 0); // We rely on open0() for setting the socket to non-blocking
KNI_EndHandles();
if (result < 0) {
int err_code = GET_LAST_ERROR();
if (err_code == EWOULDBLOCK) {
if (SNI_GetReentryData(NULL) == NULL) {
BlockingSocket *socket =
(BlockingSocket *) SNI_AllocateReentryData(sizeof(*socket));
socket->fd = fd;
socket->check_flags = CHECK_WRITE;
}
SNI_BlockThread();
}
}
KNI_ReturnInt(result);
}
/**
* The function blocks the calling thread if Transaction Store is locked.
* <p>Java declaration:
* <pre>
* private native void lockStore();
*/
KNIEXPORT KNI_RETURNTYPE_VOID
Java_com_sun_j2me_payment_TransactionStorageImpl_lockStore() {
MidpReentryData *info = NULL;
KNI_StartHandles(1);
KNI_DeclareHandle(thisObject);
KNI_GetThisPointer(thisObject);
if (locked == KNI_FALSE) {
locked = KNI_TRUE;
KNI_GetThisPointer(thisObject);
getStorageOpenFlag(thisObject)->isOpen = (jboolean)KNI_TRUE;
} else {
info = (MidpReentryData*)SNI_GetReentryData(NULL);
if (info == NULL) {
info = (MidpReentryData*)
(SNI_AllocateReentryData(sizeof (MidpReentryData)));
}
info->waitingFor = PAYMENT_TRANSACTION_STORE_SIGNAL;
info->descriptor = 0;
info->status = KNI_FALSE;
info->pResult = NULL;
/* try again later */
SNI_BlockThread();
}
KNI_EndHandles();
KNI_ReturnVoid();
}
/**
* Block this thread until unblocked.
* Initialize the reentry data needed to unblock this thread later.
* Only the waitingFor setting is used.
* The status is set to STATUS_OK.
* If canceled the status will be set to cancelled.
*/
static void blockThread() {
/* Initialize the re-entry data so later this thread can
* be unblocked.
*/
MidpReentryData* p = (MidpReentryData*)(SNI_GetReentryData(NULL));
if (p == NULL) {
p = (MidpReentryData*)
(SNI_AllocateReentryData(sizeof (MidpReentryData)));
}
p->waitingFor = JSR211_SIGNAL;
p->status = JSR211_INVOKE_OK;
SNI_BlockThread();
}
/**
* Blocks the current Java thread. The MidpReentryData block for
* the current Java thread is set to the passed values.
*
* @param waitingFor set into MidpReentryData.waitingFor
* @param descriptor set into MidpReentryData.descriptor
* @param pResult set into MidpReentryData.pResult
*/
void
midp_thread_wait(midpSignalType waitingFor, int descriptor, void* pResult)
{
MidpReentryData* p =
(MidpReentryData*)SNI_GetReentryData(NULL);
if (p == NULL) {
p = (MidpReentryData*)
(SNI_AllocateReentryData(sizeof (MidpReentryData)));
if (p == NULL) {
REPORT_CRIT(LC_CORE,
"midp_cond_wait: failed to allocate reentry data");
}
}
p->descriptor = descriptor;
p->waitingFor = waitingFor;
p->status = 0;
p->pResult = pResult;
SNI_BlockThread();
}
KNIEXPORT KNI_RETURNTYPE_INT
Java_com_sun_cldc_io_j2me_socket_Protocol_readBuf() {
int result;
int fd = KNI_GetParameterAsInt(1);
int offset = KNI_GetParameterAsInt(3);
int length = KNI_GetParameterAsInt(4);
KNI_StartHandles(1);
KNI_DeclareHandle(buffer_object);
KNI_GetParameterAsObject(2, buffer_object);
char *buffer = (char *) SNI_GetRawArrayPointer(buffer_object) + offset;
result = jvm_recv(fd, buffer, length, 0); // We rely on open0() for setting the socket to non-blocking
KNI_EndHandles();
if (result == 0) {
// If remote side has shut down the connection gracefully, and all
// data has been received, recv() will complete immediately with
// zero bytes received.
//
// This is true for Win32/CE and Linux
result = -1;
}
else if (result < 0) {
int err_code = GET_LAST_ERROR();
if (err_code == EWOULDBLOCK) {
if (SNI_GetReentryData(NULL) == NULL) {
BlockingSocket *socket =
(BlockingSocket *)SNI_AllocateReentryData(sizeof(*socket));
socket->fd = fd;
socket->check_flags = CHECK_READ;
}
SNI_BlockThread();
}
}
KNI_ReturnInt(result);
}
KNIEXPORT KNI_RETURNTYPE_INT
Java_com_sun_cldc_io_j2me_socket_Protocol_writeByte() {
int fd = KNI_GetParameterAsInt(1);
char byte = (char) KNI_GetParameterAsInt(2);
// We rely on open0() for setting the socket to non-blocking
int result = jvm_send(fd, &byte, 1, 0);
if (result < 0) {
int err_code = GET_LAST_ERROR();
if (err_code == EWOULDBLOCK) {
if (SNI_GetReentryData(NULL) == NULL) {
BlockingSocket *socket =
(BlockingSocket *)SNI_AllocateReentryData(sizeof(*socket));
socket->fd = fd;
socket->check_flags = CHECK_WRITE;
}
SNI_BlockThread();
}
}
KNI_ReturnInt(result);
}
KNIEXPORT KNI_RETURNTYPE_INT
Java_com_sun_cldc_io_j2me_socket_Protocol_readByte() {
jint result = -1;
unsigned char byte;
int fd = KNI_GetParameterAsInt(1);
int n = jvm_recv(fd, (char*)&byte, 1, 0);
if (n == 1) {
result = byte; // do not sign-extend
GUARANTEE(0 <= result && result <= 255, "no sign extension");
}
else if (n == 0) {
// If remote side has shut down the connection gracefully, and all
// data has been received, recv() will complete immediately with
// zero bytes received.
//
// This is true for Win32/CE and Linux
result = -1;
}
else {
int err_code = GET_LAST_ERROR();
if (err_code == EWOULDBLOCK) {
if (SNI_GetReentryData(NULL) == NULL) {
BlockingSocket *socket =
(BlockingSocket *)SNI_AllocateReentryData(sizeof(*socket));
socket->fd = fd;
socket->check_flags = CHECK_READ;
}
SNI_BlockThread();
} else {
result = -1;
}
}
KNI_ReturnInt(result);
}
KNIEXPORT KNI_RETURNTYPE_INT
Java_com_sun_cldc_io_j2me_socket_Protocol_open0() {
init_sockets();
SocketOpenParameter *p = (SocketOpenParameter*) SNI_GetReentryData(NULL);
if (p == NULL) {
p = (SocketOpenParameter*) SNI_AllocateReentryData(sizeof(*p));
p->fd = -1;
struct hostent *phostent;
KNI_StartHandles(1);
KNI_DeclareHandle(hostname_object);
KNI_GetParameterAsObject(1, hostname_object);
// hostname is always NUL terminated. See socket/Protocol.java for detail.
char *hostname = (char*) SNI_GetRawArrayPointer(hostname_object);
phostent = (struct hostent*)jvm_gethostbyname(hostname);
KNI_EndHandles();
if (phostent == NULL) {
KNI_ReturnInt(-1);
}
struct sockaddr_in destination_sin;
destination_sin.sin_family = AF_INET;
int port = KNI_GetParameterAsInt(2);
destination_sin.sin_port = jvm_htons(port);
jvm_memcpy((char *) &destination_sin.sin_addr, phostent->h_addr,
phostent->h_length);
p->fd = jvm_socket(AF_INET, SOCK_STREAM, 0);
if (p->fd < 0) {
KNI_ReturnInt(-1);
}
if (!set_blocking_flags(&p->fd, /*is_blocking*/ KNI_FALSE)) {
KNI_ReturnInt(-1);
}
if (jvm_connect(p->fd, (struct sockaddr *) &destination_sin,
sizeof(destination_sin)) < 0) {
int err_code = GET_LAST_ERROR();
if (err_code == EINPROGRESS) {
// When the socket is ready for connect, it becomes *writable*
// (according to BSD socket spec of select())
p->check_flags = CHECK_WRITE | CHECK_EXCEPTION;
SNI_BlockThread();
} else {
jvm_shutdown(p->fd, 2);
closesocket(p->fd);
p->fd = -1;
}
}
KNI_ReturnInt(p->fd);
} else {
// When we come to here, a CheckEvent() call has reported one of the
// following:
// [1] connect() has succeeded. In this case we return the socket fd.
// [2] connect() has failed. In this case CheckEvent has already closed
// the socket and set p->fd to -1. So we'd be returning -1.
KNI_ReturnInt(p->fd);
}
}