/*
* Handle a packet. Returns "false" if we encounter a connection-fatal error.
*/
static bool handlePacket(JdwpState* state)
{
JdwpNetState* netState = state->netState;
const unsigned char* buf = netState->inputBuffer;
JdwpReqHeader hdr;
u4 length, id;
u1 flags, cmdSet, cmd;
//u2 error;
bool reply;
int dataLen;
cmd = cmdSet = 0; // shut up gcc
/*dumpPacket(netState->inputBuffer);*/
length = read4BE(&buf);
id = read4BE(&buf);
flags = read1(&buf);
if ((flags & kJDWPFlagReply) != 0) {
reply = true;
/*error =*/ read2BE(&buf);
} else {
reply = false;
cmdSet = read1(&buf);
cmd = read1(&buf);
}
assert((int) length <= netState->inputCount);
dataLen = length - (buf - netState->inputBuffer);
if (!reply) {
ExpandBuf* pReply = expandBufAlloc();
hdr.length = length;
hdr.id = id;
hdr.cmdSet = cmdSet;
hdr.cmd = cmd;
dvmJdwpProcessRequest(state, &hdr, buf, dataLen, pReply);
if (expandBufGetLength(pReply) > 0) {
ssize_t cc = netState->writePacket(pReply);
if (cc != (ssize_t) expandBufGetLength(pReply)) {
ALOGE("Failed sending reply to debugger: %s", strerror(errno));
expandBufFree(pReply);
return false;
}
} else {
ALOGW("No reply created for set=%d cmd=%d", cmdSet, cmd);
}
expandBufFree(pReply);
} else {
ALOGV("reply?!");
assert(false);
}
ALOGV("----------");
consumeBytes(netState, length);
return true;
}
/*
* Write the header into the buffer and send the packet off to the debugger.
*
* Takes ownership of "pReq" (currently discards it).
*/
static void eventFinish(JdwpState* state, ExpandBuf* pReq)
{
u1* buf = expandBufGetBuffer(pReq);
set4BE(buf, expandBufGetLength(pReq));
set4BE(buf+4, dvmJdwpNextRequestSerial(state));
set1(buf+8, 0); /* flags */
set1(buf+9, kJdwpEventCommandSet);
set1(buf+10, kJdwpCompositeCommand);
dvmJdwpSendRequest(state, pReq);
expandBufFree(pReq);
}
/*
* Handle a packet. Returns "false" if we encounter a connection-fatal error.
*/
static bool handlePacket(JdwpState* state)
{
JdwpNetState* netState = state->netState;
const unsigned char* buf = netState->inputBuffer;
JdwpReqHeader hdr;
u4 length, id;
u1 flags, cmdSet, cmd;
u2 error;
bool reply;
int dataLen;
cmd = cmdSet = 0; // shut up gcc
/*dumpPacket(netState->inputBuffer);*/
length = read4BE(&buf);
id = read4BE(&buf);
flags = read1(&buf);
if ((flags & kJDWPFlagReply) != 0) {
reply = true;
error = read2BE(&buf);
} else {
reply = false;
cmdSet = read1(&buf);
cmd = read1(&buf);
}
assert((int) length <= netState->inputCount);
dataLen = length - (buf - netState->inputBuffer);
if (!reply) {
ExpandBuf* pReply = expandBufAlloc();
hdr.length = length;
hdr.id = id;
hdr.cmdSet = cmdSet;
hdr.cmd = cmd;
dvmJdwpProcessRequest(state, &hdr, buf, dataLen, pReply);
if (expandBufGetLength(pReply) > 0) {
int cc;
/*
* TODO: we currently assume the write() will complete in one
* go, which may not be safe for a network socket. We may need
* to mutex this against sendRequest().
*/
cc = write(netState->clientSock, expandBufGetBuffer(pReply),
expandBufGetLength(pReply));
if (cc != (int) expandBufGetLength(pReply)) {
LOGE("Failed sending reply to debugger: %s\n", strerror(errno));
expandBufFree(pReply);
return false;
}
} else {
LOGW("No reply created for set=%d cmd=%d\n", cmdSet, cmd);
}
expandBufFree(pReply);
} else {
LOGV("reply?!\n");
assert(false);
}
LOGV("----------\n");
consumeBytes(netState, length);
return true;
}