diff options
Diffstat (limited to 'media/libstagefright/wifi-display/ANetworkSession.cpp')
| -rw-r--r-- | media/libstagefright/wifi-display/ANetworkSession.cpp | 1255 |
1 files changed, 0 insertions, 1255 deletions
diff --git a/media/libstagefright/wifi-display/ANetworkSession.cpp b/media/libstagefright/wifi-display/ANetworkSession.cpp deleted file mode 100644 index 938d601..0000000 --- a/media/libstagefright/wifi-display/ANetworkSession.cpp +++ /dev/null @@ -1,1255 +0,0 @@ -/* - * Copyright 2012, The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -//#define LOG_NDEBUG 0 -#define LOG_TAG "NetworkSession" -#include <utils/Log.h> - -#include "ANetworkSession.h" -#include "ParsedMessage.h" - -#include <arpa/inet.h> -#include <fcntl.h> -#include <linux/tcp.h> -#include <net/if.h> -#include <netdb.h> -#include <netinet/in.h> -#include <sys/ioctl.h> -#include <sys/socket.h> - -#include <media/stagefright/foundation/ABuffer.h> -#include <media/stagefright/foundation/ADebug.h> -#include <media/stagefright/foundation/AMessage.h> -#include <media/stagefright/foundation/hexdump.h> -#include <media/stagefright/Utils.h> - -namespace android { - -static const size_t kMaxUDPSize = 1500; -static const int32_t kMaxUDPRetries = 200; - -struct ANetworkSession::NetworkThread : public Thread { - NetworkThread(ANetworkSession *session); - -protected: - virtual ~NetworkThread(); - -private: - ANetworkSession *mSession; - - virtual bool threadLoop(); - - DISALLOW_EVIL_CONSTRUCTORS(NetworkThread); -}; - -struct ANetworkSession::Session : public RefBase { - enum State { - CONNECTING, - CONNECTED, - LISTENING_RTSP, - LISTENING_TCP_DGRAMS, - DATAGRAM, - }; - - Session(int32_t sessionID, - State state, - int s, - const sp<AMessage> ¬ify); - - int32_t sessionID() const; - int socket() const; - sp<AMessage> getNotificationMessage() const; - - bool isRTSPServer() const; - bool isTCPDatagramServer() const; - - bool wantsToRead(); - bool wantsToWrite(); - - status_t readMore(); - status_t writeMore(); - - status_t sendRequest( - const void *data, ssize_t size, bool timeValid, int64_t timeUs); - - void setIsRTSPConnection(bool yesno); - -protected: - virtual ~Session(); - -private: - enum { - FRAGMENT_FLAG_TIME_VALID = 1, - }; - struct Fragment { - uint32_t mFlags; - int64_t mTimeUs; - sp<ABuffer> mBuffer; - }; - - int32_t mSessionID; - State mState; - bool mIsRTSPConnection; - int mSocket; - sp<AMessage> mNotify; - bool mSawReceiveFailure, mSawSendFailure; - int32_t mUDPRetries; - - List<Fragment> mOutFragments; - - AString mInBuffer; - - int64_t mLastStallReportUs; - - void notifyError(bool send, status_t err, const char *detail); - void notify(NotificationReason reason); - - void dumpFragmentStats(const Fragment &frag); - - DISALLOW_EVIL_CONSTRUCTORS(Session); -}; -//////////////////////////////////////////////////////////////////////////////// - -ANetworkSession::NetworkThread::NetworkThread(ANetworkSession *session) - : mSession(session) { -} - -ANetworkSession::NetworkThread::~NetworkThread() { -} - -bool ANetworkSession::NetworkThread::threadLoop() { - mSession->threadLoop(); - - return true; -} - -//////////////////////////////////////////////////////////////////////////////// - -ANetworkSession::Session::Session( - int32_t sessionID, - State state, - int s, - const sp<AMessage> ¬ify) - : mSessionID(sessionID), - mState(state), - mIsRTSPConnection(false), - mSocket(s), - mNotify(notify), - mSawReceiveFailure(false), - mSawSendFailure(false), - mUDPRetries(kMaxUDPRetries), - mLastStallReportUs(-1ll) { - if (mState == CONNECTED) { - struct sockaddr_in localAddr; - socklen_t localAddrLen = sizeof(localAddr); - - int res = getsockname( - mSocket, (struct sockaddr *)&localAddr, &localAddrLen); - CHECK_GE(res, 0); - - struct sockaddr_in remoteAddr; - socklen_t remoteAddrLen = sizeof(remoteAddr); - - res = getpeername( - mSocket, (struct sockaddr *)&remoteAddr, &remoteAddrLen); - CHECK_GE(res, 0); - - in_addr_t addr = ntohl(localAddr.sin_addr.s_addr); - AString localAddrString = StringPrintf( - "%d.%d.%d.%d", - (addr >> 24), - (addr >> 16) & 0xff, - (addr >> 8) & 0xff, - addr & 0xff); - - addr = ntohl(remoteAddr.sin_addr.s_addr); - AString remoteAddrString = StringPrintf( - "%d.%d.%d.%d", - (addr >> 24), - (addr >> 16) & 0xff, - (addr >> 8) & 0xff, - addr & 0xff); - - sp<AMessage> msg = mNotify->dup(); - msg->setInt32("sessionID", mSessionID); - msg->setInt32("reason", kWhatClientConnected); - msg->setString("server-ip", localAddrString.c_str()); - msg->setInt32("server-port", ntohs(localAddr.sin_port)); - msg->setString("client-ip", remoteAddrString.c_str()); - msg->setInt32("client-port", ntohs(remoteAddr.sin_port)); - msg->post(); - } -} - -ANetworkSession::Session::~Session() { - ALOGV("Session %d gone", mSessionID); - - close(mSocket); - mSocket = -1; -} - -int32_t ANetworkSession::Session::sessionID() const { - return mSessionID; -} - -int ANetworkSession::Session::socket() const { - return mSocket; -} - -void ANetworkSession::Session::setIsRTSPConnection(bool yesno) { - mIsRTSPConnection = yesno; -} - -sp<AMessage> ANetworkSession::Session::getNotificationMessage() const { - return mNotify; -} - -bool ANetworkSession::Session::isRTSPServer() const { - return mState == LISTENING_RTSP; -} - -bool ANetworkSession::Session::isTCPDatagramServer() const { - return mState == LISTENING_TCP_DGRAMS; -} - -bool ANetworkSession::Session::wantsToRead() { - return !mSawReceiveFailure && mState != CONNECTING; -} - -bool ANetworkSession::Session::wantsToWrite() { - return !mSawSendFailure - && (mState == CONNECTING - || (mState == CONNECTED && !mOutFragments.empty()) - || (mState == DATAGRAM && !mOutFragments.empty())); -} - -status_t ANetworkSession::Session::readMore() { - if (mState == DATAGRAM) { - status_t err; - do { - sp<ABuffer> buf = new ABuffer(kMaxUDPSize); - - struct sockaddr_in remoteAddr; - socklen_t remoteAddrLen = sizeof(remoteAddr); - - ssize_t n; - do { - n = recvfrom( - mSocket, buf->data(), buf->capacity(), 0, - (struct sockaddr *)&remoteAddr, &remoteAddrLen); - } while (n < 0 && errno == EINTR); - - err = OK; - if (n < 0) { - err = -errno; - } else if (n == 0) { - err = -ECONNRESET; - } else { - buf->setRange(0, n); - - int64_t nowUs = ALooper::GetNowUs(); - buf->meta()->setInt64("arrivalTimeUs", nowUs); - - sp<AMessage> notify = mNotify->dup(); - notify->setInt32("sessionID", mSessionID); - notify->setInt32("reason", kWhatDatagram); - - uint32_t ip = ntohl(remoteAddr.sin_addr.s_addr); - notify->setString( - "fromAddr", - StringPrintf( - "%u.%u.%u.%u", - ip >> 24, - (ip >> 16) & 0xff, - (ip >> 8) & 0xff, - ip & 0xff).c_str()); - - notify->setInt32("fromPort", ntohs(remoteAddr.sin_port)); - - notify->setBuffer("data", buf); - notify->post(); - } - } while (err == OK); - - if (err == -EAGAIN) { - err = OK; - } - - if (err != OK) { - if (!mUDPRetries) { - notifyError(false /* send */, err, "Recvfrom failed."); - mSawReceiveFailure = true; - } else { - mUDPRetries--; - ALOGE("Recvfrom failed, %d/%d retries left", - mUDPRetries, kMaxUDPRetries); - err = OK; - } - } else { - mUDPRetries = kMaxUDPRetries; - } - - return err; - } - - char tmp[512]; - ssize_t n; - do { - n = recv(mSocket, tmp, sizeof(tmp), 0); - } while (n < 0 && errno == EINTR); - - status_t err = OK; - - if (n > 0) { - mInBuffer.append(tmp, n); - -#if 0 - ALOGI("in:"); - hexdump(tmp, n); -#endif - } else if (n < 0) { - err = -errno; - } else { - err = -ECONNRESET; - } - - if (!mIsRTSPConnection) { - // TCP stream carrying 16-bit length-prefixed datagrams. - - while (mInBuffer.size() >= 2) { - size_t packetSize = U16_AT((const uint8_t *)mInBuffer.c_str()); - - if (mInBuffer.size() < packetSize + 2) { - break; - } - - sp<ABuffer> packet = new ABuffer(packetSize); - memcpy(packet->data(), mInBuffer.c_str() + 2, packetSize); - - int64_t nowUs = ALooper::GetNowUs(); - packet->meta()->setInt64("arrivalTimeUs", nowUs); - - sp<AMessage> notify = mNotify->dup(); - notify->setInt32("sessionID", mSessionID); - notify->setInt32("reason", kWhatDatagram); - notify->setBuffer("data", packet); - notify->post(); - - mInBuffer.erase(0, packetSize + 2); - } - } else { - for (;;) { - size_t length; - - if (mInBuffer.size() > 0 && mInBuffer.c_str()[0] == '$') { - if (mInBuffer.size() < 4) { - break; - } - - length = U16_AT((const uint8_t *)mInBuffer.c_str() + 2); - - if (mInBuffer.size() < 4 + length) { - break; - } - - sp<AMessage> notify = mNotify->dup(); - notify->setInt32("sessionID", mSessionID); - notify->setInt32("reason", kWhatBinaryData); - notify->setInt32("channel", mInBuffer.c_str()[1]); - - sp<ABuffer> data = new ABuffer(length); - memcpy(data->data(), mInBuffer.c_str() + 4, length); - - int64_t nowUs = ALooper::GetNowUs(); - data->meta()->setInt64("arrivalTimeUs", nowUs); - - notify->setBuffer("data", data); - notify->post(); - - mInBuffer.erase(0, 4 + length); - continue; - } - - sp<ParsedMessage> msg = - ParsedMessage::Parse( - mInBuffer.c_str(), mInBuffer.size(), err != OK, &length); - - if (msg == NULL) { - break; - } - - sp<AMessage> notify = mNotify->dup(); - notify->setInt32("sessionID", mSessionID); - notify->setInt32("reason", kWhatData); - notify->setObject("data", msg); - notify->post(); - -#if 1 - // XXX The (old) dongle sends the wrong content length header on a - // SET_PARAMETER request that signals a "wfd_idr_request". - // (17 instead of 19). - const char *content = msg->getContent(); - if (content - && !memcmp(content, "wfd_idr_request\r\n", 17) - && length >= 19 - && mInBuffer.c_str()[length] == '\r' - && mInBuffer.c_str()[length + 1] == '\n') { - length += 2; - } -#endif - - mInBuffer.erase(0, length); - - if (err != OK) { - break; - } - } - } - - if (err != OK) { - notifyError(false /* send */, err, "Recv failed."); - mSawReceiveFailure = true; - } - - return err; -} - -void ANetworkSession::Session::dumpFragmentStats(const Fragment &frag) { -#if 0 - int64_t nowUs = ALooper::GetNowUs(); - int64_t delayMs = (nowUs - frag.mTimeUs) / 1000ll; - - static const int64_t kMinDelayMs = 0; - static const int64_t kMaxDelayMs = 300; - - const char *kPattern = "########################################"; - size_t kPatternSize = strlen(kPattern); - - int n = (kPatternSize * (delayMs - kMinDelayMs)) - / (kMaxDelayMs - kMinDelayMs); - - if (n < 0) { - n = 0; - } else if ((size_t)n > kPatternSize) { - n = kPatternSize; - } - - ALOGI("[%lld]: (%4lld ms) %s\n", - frag.mTimeUs / 1000, - delayMs, - kPattern + kPatternSize - n); -#endif -} - -status_t ANetworkSession::Session::writeMore() { - if (mState == DATAGRAM) { - CHECK(!mOutFragments.empty()); - - status_t err; - do { - const Fragment &frag = *mOutFragments.begin(); - const sp<ABuffer> &datagram = frag.mBuffer; - - int n; - do { - n = send(mSocket, datagram->data(), datagram->size(), 0); - } while (n < 0 && errno == EINTR); - - err = OK; - - if (n > 0) { - if (frag.mFlags & FRAGMENT_FLAG_TIME_VALID) { - dumpFragmentStats(frag); - } - - mOutFragments.erase(mOutFragments.begin()); - } else if (n < 0) { - err = -errno; - } else if (n == 0) { - err = -ECONNRESET; - } - } while (err == OK && !mOutFragments.empty()); - - if (err == -EAGAIN) { - if (!mOutFragments.empty()) { - ALOGI("%d datagrams remain queued.", mOutFragments.size()); - } - err = OK; - } - - if (err != OK) { - if (!mUDPRetries) { - notifyError(true /* send */, err, "Send datagram failed."); - mSawSendFailure = true; - } else { - mUDPRetries--; - ALOGE("Send datagram failed, %d/%d retries left", - mUDPRetries, kMaxUDPRetries); - err = OK; - } - } else { - mUDPRetries = kMaxUDPRetries; - } - - return err; - } - - if (mState == CONNECTING) { - int err; - socklen_t optionLen = sizeof(err); - CHECK_EQ(getsockopt(mSocket, SOL_SOCKET, SO_ERROR, &err, &optionLen), 0); - CHECK_EQ(optionLen, (socklen_t)sizeof(err)); - - if (err != 0) { - notifyError(kWhatError, -err, "Connection failed"); - mSawSendFailure = true; - - return -err; - } - - mState = CONNECTED; - notify(kWhatConnected); - - return OK; - } - - CHECK_EQ(mState, CONNECTED); - CHECK(!mOutFragments.empty()); - - ssize_t n; - while (!mOutFragments.empty()) { - const Fragment &frag = *mOutFragments.begin(); - - do { - n = send(mSocket, frag.mBuffer->data(), frag.mBuffer->size(), 0); - } while (n < 0 && errno == EINTR); - - if (n <= 0) { - break; - } - - frag.mBuffer->setRange( - frag.mBuffer->offset() + n, frag.mBuffer->size() - n); - - if (frag.mBuffer->size() > 0) { - break; - } - - if (frag.mFlags & FRAGMENT_FLAG_TIME_VALID) { - dumpFragmentStats(frag); - } - - mOutFragments.erase(mOutFragments.begin()); - } - - status_t err = OK; - - if (n < 0) { - err = -errno; - } else if (n == 0) { - err = -ECONNRESET; - } - - if (err != OK) { - notifyError(true /* send */, err, "Send failed."); - mSawSendFailure = true; - } - -#if 0 - int numBytesQueued; - int res = ioctl(mSocket, SIOCOUTQ, &numBytesQueued); - if (res == 0 && numBytesQueued > 50 * 1024) { - if (numBytesQueued > 409600) { - ALOGW("!!! numBytesQueued = %d", numBytesQueued); - } - - int64_t nowUs = ALooper::GetNowUs(); - - if (mLastStallReportUs < 0ll - || nowUs > mLastStallReportUs + 100000ll) { - sp<AMessage> msg = mNotify->dup(); - msg->setInt32("sessionID", mSessionID); - msg->setInt32("reason", kWhatNetworkStall); - msg->setSize("numBytesQueued", numBytesQueued); - msg->post(); - - mLastStallReportUs = nowUs; - } - } -#endif - - return err; -} - -status_t ANetworkSession::Session::sendRequest( - const void *data, ssize_t size, bool timeValid, int64_t timeUs) { - CHECK(mState == CONNECTED || mState == DATAGRAM); - - if (size < 0) { - size = strlen((const char *)data); - } - - if (size == 0) { - return OK; - } - - sp<ABuffer> buffer; - - if (mState == CONNECTED && !mIsRTSPConnection) { - CHECK_LE(size, 65535); - - buffer = new ABuffer(size + 2); - buffer->data()[0] = size >> 8; - buffer->data()[1] = size & 0xff; - memcpy(buffer->data() + 2, data, size); - } else { - buffer = new ABuffer(size); - memcpy(buffer->data(), data, size); - } - - Fragment frag; - - frag.mFlags = 0; - if (timeValid) { - frag.mFlags = FRAGMENT_FLAG_TIME_VALID; - frag.mTimeUs = timeUs; - } - - frag.mBuffer = buffer; - - mOutFragments.push_back(frag); - - return OK; -} - -void ANetworkSession::Session::notifyError( - bool send, status_t err, const char *detail) { - sp<AMessage> msg = mNotify->dup(); - msg->setInt32("sessionID", mSessionID); - msg->setInt32("reason", kWhatError); - msg->setInt32("send", send); - msg->setInt32("err", err); - msg->setString("detail", detail); - msg->post(); -} - -void ANetworkSession::Session::notify(NotificationReason reason) { - sp<AMessage> msg = mNotify->dup(); - msg->setInt32("sessionID", mSessionID); - msg->setInt32("reason", reason); - msg->post(); -} - -//////////////////////////////////////////////////////////////////////////////// - -ANetworkSession::ANetworkSession() - : mNextSessionID(1) { - mPipeFd[0] = mPipeFd[1] = -1; -} - -ANetworkSession::~ANetworkSession() { - stop(); -} - -status_t ANetworkSession::start() { - if (mThread != NULL) { - return INVALID_OPERATION; - } - - int res = pipe(mPipeFd); - if (res != 0) { - mPipeFd[0] = mPipeFd[1] = -1; - return -errno; - } - - mThread = new NetworkThread(this); - - status_t err = mThread->run("ANetworkSession", ANDROID_PRIORITY_AUDIO); - - if (err != OK) { - mThread.clear(); - - close(mPipeFd[0]); - close(mPipeFd[1]); - mPipeFd[0] = mPipeFd[1] = -1; - - return err; - } - - return OK; -} - -status_t ANetworkSession::stop() { - if (mThread == NULL) { - return INVALID_OPERATION; - } - - mThread->requestExit(); - interrupt(); - mThread->requestExitAndWait(); - - mThread.clear(); - - close(mPipeFd[0]); - close(mPipeFd[1]); - mPipeFd[0] = mPipeFd[1] = -1; - - return OK; -} - -status_t ANetworkSession::createRTSPClient( - const char *host, unsigned port, const sp<AMessage> ¬ify, - int32_t *sessionID) { - return createClientOrServer( - kModeCreateRTSPClient, - NULL /* addr */, - 0 /* port */, - host, - port, - notify, - sessionID); -} - -status_t ANetworkSession::createRTSPServer( - const struct in_addr &addr, unsigned port, - const sp<AMessage> ¬ify, int32_t *sessionID) { - return createClientOrServer( - kModeCreateRTSPServer, - &addr, - port, - NULL /* remoteHost */, - 0 /* remotePort */, - notify, - sessionID); -} - -status_t ANetworkSession::createUDPSession( - unsigned localPort, const sp<AMessage> ¬ify, int32_t *sessionID) { - return createUDPSession(localPort, NULL, 0, notify, sessionID); -} - -status_t ANetworkSession::createUDPSession( - unsigned localPort, - const char *remoteHost, - unsigned remotePort, - const sp<AMessage> ¬ify, - int32_t *sessionID) { - return createClientOrServer( - kModeCreateUDPSession, - NULL /* addr */, - localPort, - remoteHost, - remotePort, - notify, - sessionID); -} - -status_t ANetworkSession::createTCPDatagramSession( - const struct in_addr &addr, unsigned port, - const sp<AMessage> ¬ify, int32_t *sessionID) { - return createClientOrServer( - kModeCreateTCPDatagramSessionPassive, - &addr, - port, - NULL /* remoteHost */, - 0 /* remotePort */, - notify, - sessionID); -} - -status_t ANetworkSession::createTCPDatagramSession( - unsigned localPort, - const char *remoteHost, - unsigned remotePort, - const sp<AMessage> ¬ify, - int32_t *sessionID) { - return createClientOrServer( - kModeCreateTCPDatagramSessionActive, - NULL /* addr */, - localPort, - remoteHost, - remotePort, - notify, - sessionID); -} - -status_t ANetworkSession::destroySession(int32_t sessionID) { - Mutex::Autolock autoLock(mLock); - - ssize_t index = mSessions.indexOfKey(sessionID); - - if (index < 0) { - return -ENOENT; - } - - mSessions.removeItemsAt(index); - - interrupt(); - - return OK; -} - -// static -status_t ANetworkSession::MakeSocketNonBlocking(int s) { - int flags = fcntl(s, F_GETFL, 0); - if (flags < 0) { - flags = 0; - } - - int res = fcntl(s, F_SETFL, flags | O_NONBLOCK); - if (res < 0) { - return -errno; - } - - return OK; -} - -status_t ANetworkSession::createClientOrServer( - Mode mode, - const struct in_addr *localAddr, - unsigned port, - const char *remoteHost, - unsigned remotePort, - const sp<AMessage> ¬ify, - int32_t *sessionID) { - Mutex::Autolock autoLock(mLock); - - *sessionID = 0; - status_t err = OK; - int s, res; - sp<Session> session; - - s = socket( - AF_INET, - (mode == kModeCreateUDPSession) ? SOCK_DGRAM : SOCK_STREAM, - 0); - - if (s < 0) { - err = -errno; - goto bail; - } - - if (mode == kModeCreateRTSPServer - || mode == kModeCreateTCPDatagramSessionPassive) { - const int yes = 1; - res = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)); - - if (res < 0) { - err = -errno; - goto bail2; - } - } - - if (mode == kModeCreateUDPSession) { - int size = 256 * 1024; - - res = setsockopt(s, SOL_SOCKET, SO_RCVBUF, &size, sizeof(size)); - - if (res < 0) { - err = -errno; - goto bail2; - } - - res = setsockopt(s, SOL_SOCKET, SO_SNDBUF, &size, sizeof(size)); - - if (res < 0) { - err = -errno; - goto bail2; - } - } else if (mode == kModeCreateTCPDatagramSessionActive) { - int flag = 1; - res = setsockopt(s, IPPROTO_TCP, TCP_NODELAY, &flag, sizeof(flag)); - - if (res < 0) { - err = -errno; - goto bail2; - } - - int tos = 224; // VOICE - res = setsockopt(s, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)); - - if (res < 0) { - err = -errno; - goto bail2; - } - } - - err = MakeSocketNonBlocking(s); - - if (err != OK) { - goto bail2; - } - - struct sockaddr_in addr; - memset(addr.sin_zero, 0, sizeof(addr.sin_zero)); - addr.sin_family = AF_INET; - - if (mode == kModeCreateRTSPClient - || mode == kModeCreateTCPDatagramSessionActive) { - struct hostent *ent= gethostbyname(remoteHost); - if (ent == NULL) { - err = -h_errno; - goto bail2; - } - - addr.sin_addr.s_addr = *(in_addr_t *)ent->h_addr; - addr.sin_port = htons(remotePort); - } else if (localAddr != NULL) { - addr.sin_addr = *localAddr; - addr.sin_port = htons(port); - } else { - addr.sin_addr.s_addr = htonl(INADDR_ANY); - addr.sin_port = htons(port); - } - - if (mode == kModeCreateRTSPClient - || mode == kModeCreateTCPDatagramSessionActive) { - in_addr_t x = ntohl(addr.sin_addr.s_addr); - ALOGI("connecting socket %d to %d.%d.%d.%d:%d", - s, - (x >> 24), - (x >> 16) & 0xff, - (x >> 8) & 0xff, - x & 0xff, - ntohs(addr.sin_port)); - - res = connect(s, (const struct sockaddr *)&addr, sizeof(addr)); - - CHECK_LT(res, 0); - if (errno == EINPROGRESS) { - res = 0; - } - } else { - res = bind(s, (const struct sockaddr *)&addr, sizeof(addr)); - - if (res == 0) { - if (mode == kModeCreateRTSPServer - || mode == kModeCreateTCPDatagramSessionPassive) { - res = listen(s, 4); - } else { - CHECK_EQ(mode, kModeCreateUDPSession); - - if (remoteHost != NULL) { - struct sockaddr_in remoteAddr; - memset(remoteAddr.sin_zero, 0, sizeof(remoteAddr.sin_zero)); - remoteAddr.sin_family = AF_INET; - remoteAddr.sin_port = htons(remotePort); - - struct hostent *ent= gethostbyname(remoteHost); - if (ent == NULL) { - err = -h_errno; - goto bail2; - } - - remoteAddr.sin_addr.s_addr = *(in_addr_t *)ent->h_addr; - - res = connect( - s, - (const struct sockaddr *)&remoteAddr, - sizeof(remoteAddr)); - } - } - } - } - - if (res < 0) { - err = -errno; - goto bail2; - } - - Session::State state; - switch (mode) { - case kModeCreateRTSPClient: - state = Session::CONNECTING; - break; - - case kModeCreateTCPDatagramSessionActive: - state = Session::CONNECTING; - break; - - case kModeCreateTCPDatagramSessionPassive: - state = Session::LISTENING_TCP_DGRAMS; - break; - - case kModeCreateRTSPServer: - state = Session::LISTENING_RTSP; - break; - - default: - CHECK_EQ(mode, kModeCreateUDPSession); - state = Session::DATAGRAM; - break; - } - - session = new Session( - mNextSessionID++, - state, - s, - notify); - - if (mode == kModeCreateTCPDatagramSessionActive) { - session->setIsRTSPConnection(false); - } else if (mode == kModeCreateRTSPClient) { - session->setIsRTSPConnection(true); - } - - mSessions.add(session->sessionID(), session); - - interrupt(); - - *sessionID = session->sessionID(); - - goto bail; - -bail2: - close(s); - s = -1; - -bail: - return err; -} - -status_t ANetworkSession::connectUDPSession( - int32_t sessionID, const char *remoteHost, unsigned remotePort) { - Mutex::Autolock autoLock(mLock); - - ssize_t index = mSessions.indexOfKey(sessionID); - - if (index < 0) { - return -ENOENT; - } - - const sp<Session> session = mSessions.valueAt(index); - int s = session->socket(); - - struct sockaddr_in remoteAddr; - memset(remoteAddr.sin_zero, 0, sizeof(remoteAddr.sin_zero)); - remoteAddr.sin_family = AF_INET; - remoteAddr.sin_port = htons(remotePort); - - status_t err = OK; - struct hostent *ent = gethostbyname(remoteHost); - if (ent == NULL) { - err = -h_errno; - } else { - remoteAddr.sin_addr.s_addr = *(in_addr_t *)ent->h_addr; - - int res = connect( - s, - (const struct sockaddr *)&remoteAddr, - sizeof(remoteAddr)); - - if (res < 0) { - err = -errno; - } - } - - return err; -} - -status_t ANetworkSession::sendRequest( - int32_t sessionID, const void *data, ssize_t size, - bool timeValid, int64_t timeUs) { - Mutex::Autolock autoLock(mLock); - - ssize_t index = mSessions.indexOfKey(sessionID); - - if (index < 0) { - return -ENOENT; - } - - const sp<Session> session = mSessions.valueAt(index); - - status_t err = session->sendRequest(data, size, timeValid, timeUs); - - interrupt(); - - return err; -} - -void ANetworkSession::interrupt() { - static const char dummy = 0; - - ssize_t n; - do { - n = write(mPipeFd[1], &dummy, 1); - } while (n < 0 && errno == EINTR); - - if (n < 0) { - ALOGW("Error writing to pipe (%s)", strerror(errno)); - } -} - -void ANetworkSession::threadLoop() { - fd_set rs, ws; - FD_ZERO(&rs); - FD_ZERO(&ws); - - FD_SET(mPipeFd[0], &rs); - int maxFd = mPipeFd[0]; - - { - Mutex::Autolock autoLock(mLock); - - for (size_t i = 0; i < mSessions.size(); ++i) { - const sp<Session> &session = mSessions.valueAt(i); - - int s = session->socket(); - - if (s < 0) { - continue; - } - - if (session->wantsToRead()) { - FD_SET(s, &rs); - if (s > maxFd) { - maxFd = s; - } - } - - if (session->wantsToWrite()) { - FD_SET(s, &ws); - if (s > maxFd) { - maxFd = s; - } - } - } - } - - int res = select(maxFd + 1, &rs, &ws, NULL, NULL /* tv */); - - if (res == 0) { - return; - } - - if (res < 0) { - if (errno == EINTR) { - return; - } - - ALOGE("select failed w/ error %d (%s)", errno, strerror(errno)); - return; - } - - if (FD_ISSET(mPipeFd[0], &rs)) { - char c; - ssize_t n; - do { - n = read(mPipeFd[0], &c, 1); - } while (n < 0 && errno == EINTR); - - if (n < 0) { - ALOGW("Error reading from pipe (%s)", strerror(errno)); - } - - --res; - } - - { - Mutex::Autolock autoLock(mLock); - - List<sp<Session> > sessionsToAdd; - - for (size_t i = mSessions.size(); res > 0 && i-- > 0;) { - const sp<Session> &session = mSessions.valueAt(i); - - int s = session->socket(); - - if (s < 0) { - continue; - } - - if (FD_ISSET(s, &rs) || FD_ISSET(s, &ws)) { - --res; - } - - if (FD_ISSET(s, &rs)) { - if (session->isRTSPServer() || session->isTCPDatagramServer()) { - struct sockaddr_in remoteAddr; - socklen_t remoteAddrLen = sizeof(remoteAddr); - - int clientSocket = accept( - s, (struct sockaddr *)&remoteAddr, &remoteAddrLen); - - if (clientSocket >= 0) { - status_t err = MakeSocketNonBlocking(clientSocket); - - if (err != OK) { - ALOGE("Unable to make client socket non blocking, " - "failed w/ error %d (%s)", - err, strerror(-err)); - - close(clientSocket); - clientSocket = -1; - } else { - in_addr_t addr = ntohl(remoteAddr.sin_addr.s_addr); - - ALOGI("incoming connection from %d.%d.%d.%d:%d " - "(socket %d)", - (addr >> 24), - (addr >> 16) & 0xff, - (addr >> 8) & 0xff, - addr & 0xff, - ntohs(remoteAddr.sin_port), - clientSocket); - - sp<Session> clientSession = - new Session( - mNextSessionID++, - Session::CONNECTED, - clientSocket, - session->getNotificationMessage()); - - clientSession->setIsRTSPConnection( - session->isRTSPServer()); - - sessionsToAdd.push_back(clientSession); - } - } else { - ALOGE("accept returned error %d (%s)", - errno, strerror(errno)); - } - } else { - status_t err = session->readMore(); - if (err != OK) { - ALOGE("readMore on socket %d failed w/ error %d (%s)", - s, err, strerror(-err)); - } - } - } - - if (FD_ISSET(s, &ws)) { - status_t err = session->writeMore(); - if (err != OK) { - ALOGE("writeMore on socket %d failed w/ error %d (%s)", - s, err, strerror(-err)); - } - } - } - - while (!sessionsToAdd.empty()) { - sp<Session> session = *sessionsToAdd.begin(); - sessionsToAdd.erase(sessionsToAdd.begin()); - - mSessions.add(session->sessionID(), session); - - ALOGI("added clientSession %d", session->sessionID()); - } - } -} - -} // namespace android - |