Merge branch 'development' into LTS_development

# Conflicts:
#	lib/shared_memory.cpp
#	src/controller/controller.cpp
#	src/controller/controller_storage.h
#	src/output/output.cpp

lib/config.cpp

@@ -229,7 +229,7 @@ bool Util::Config::parseArgs(int & argc, char ** & argv) {
         #endif
         /*LTS-END*/
         std::cout << "Built on " __DATE__ ", " __TIME__ << std::endl;
-        exit(1);
+        exit(0);
         break;
       default:
         jsonForEach(vals, it) {

lib/dtsc.h

@@ -19,6 +19,12 @@
 #define DTSC_ARR 0x0A
 #define DTSC_CON 0xFF
 
+//Increase this value every time the DTSH file format changes in an incompatible way
+//Changelog:
+//  Version 0-2: Undocumented changes
+//  Version 3: switched to bigMeta-style by default, Parts layout switched from 3/2/4 to 3/3/3 bytes
+#define DTSH_VERSION 3
+
 namespace DTSC {
 
   ///\brief This enum holds all possible datatypes for DTSC packets.
@@ -125,6 +131,7 @@ namespace DTSC {
       int getDataLen() const;
       int getPayloadLen() const;
       JSON::Value toJSON() const;
+      std::string toSummary() const;
       Scan getScan() const;
     protected:
       bool master;
@@ -193,21 +200,22 @@ namespace DTSC {
   ///\brief Basic class for storage of data associated with single DTSC packets, a.k.a. parts.
   class Part {
     public:
-      long getSize();
+      uint32_t getSize();
-      void setSize(long newSize);
+      void setSize(uint32_t newSize);
-      short getDuration();
+      uint32_t getDuration();
-      void setDuration(short newDuration);
+      void setDuration(uint32_t newDuration);
-      long getOffset();
+      uint32_t getOffset();
-      void setOffset(long newOffset);
+      void setOffset(uint32_t newOffset);
       char * getData();
       void toPrettyString(std::ostream & str, int indent = 0);
     private:
+#define PACKED_PART_SIZE 9
       ///\brief Data storage for this Part.
       ///
       /// - 3 bytes: MSB storage of the payload size of this packet in bytes.
-      /// - 2 bytes: MSB storage of the duration of this packet in milliseconds.
+      /// - 3 bytes: MSB storage of the duration of this packet in milliseconds.
-      /// - 4 bytes: MSB storage of the presentation time offset of this packet in milliseconds.
+      /// - 3 bytes: MSB storage of the presentation time offset of this packet in milliseconds.
-      char data[9];
+      char data[PACKED_PART_SIZE];
   };
 
   ///\brief Basic class for storage of data associated with keyframes.
@@ -228,7 +236,6 @@ namespace DTSC {
       char * getData();
       void toPrettyString(std::ostream & str, int indent = 0);
     private:
-#ifdef BIGMETA
 #define PACKED_KEY_SIZE 25
       ///\brief Data storage for this Key.
       ///
@@ -237,16 +244,6 @@ namespace DTSC {
       /// - 4 bytes: MSB storage of the number of this keyframe.
       /// - 2 bytes: MSB storage of the amount of parts in this keyframe.
       /// - 8 bytes: MSB storage of the timestamp associated with this keyframe's first packet.
-#else
-#define PACKED_KEY_SIZE 16
-      ///\brief Data storage for this Key.
-      ///
-      /// - 5 bytes: MSB storage of the position of the first packet of this keyframe within the file.
-      /// - 3 bytes: MSB storage of the duration of this keyframe.
-      /// - 2 bytes: MSB storage of the number of this keyframe.
-      /// - 2 bytes: MSB storage of the amount of parts in this keyframe.
-      /// - 4 bytes: MSB storage of the timestamp associated with this keyframe's first packet.
-#endif
       char data[PACKED_KEY_SIZE];
   };
 
@@ -264,7 +261,6 @@ namespace DTSC {
       char * getData();
       void toPrettyString(std::ostream & str, int indent = 0);
     private:
-#ifdef BIGMETA
 #define PACKED_FRAGMENT_SIZE 13
       ///\brief Data storage for this Fragment.
       ///
@@ -272,15 +268,6 @@ namespace DTSC {
       /// - 1 byte: length (amount of keyframes)
       /// - 4 bytes: number of first keyframe in fragment
       /// - 4 bytes: size of fragment in bytes
-#else
-#define PACKED_FRAGMENT_SIZE 11
-      ///\brief Data storage for this Fragment.
-      ///
-      /// - 4 bytes: duration (in milliseconds)
-      /// - 1 byte: length (amount of keyframes)
-      /// - 2 bytes: number of first keyframe in fragment
-      /// - 4 bytes: size of fragment in bytes
-#endif
       char data[PACKED_FRAGMENT_SIZE];
   };
 
@@ -362,12 +349,14 @@ namespace DTSC {
       void writeTo(char * p);
       JSON::Value toJSON();
       void reset();
+      bool toFile(const std::string & fileName);
       void toPrettyString(std::ostream & str, int indent = 0, int verbosity = 0);
       //members:
       std::map<unsigned int, Track> tracks;
       bool vod;
       bool live;
       bool merged;
+      uint16_t version;
       long long int moreheader;
       long long int bufferWindow;
   };

lib/dtscmeta.cpp

@@ -4,6 +4,7 @@
 #include <cstdlib>
 #include <cstring>
 #include <iomanip>
+#include <fstream>
 
 #define AUDIO_KEY_INTERVAL 5000 ///< This define controls the keyframe interval for non-video tracks, such as audio and metadata tracks.
 
@@ -437,6 +438,18 @@ namespace DTSC {
     return result;
   }
 
+  std::string Packet::toSummary() const {
+    std::stringstream out;
+    char * res = 0;
+    unsigned int len = 0;
+    getString("data", res, len);
+    out << getTrackId() << "@" << getTime() << ": " << len << " bytes";
+    if (hasMember("keyframe")){
+      out << " (keyframe)";
+    }
+    return out.str();
+  }
+
   /// Create an invalid DTSC::Scan object by default.
   Scan::Scan() {
     p = 0;
@@ -870,33 +883,33 @@ namespace DTSC {
   /*LTS-END*/
 
   ///\brief Returns the payloadsize of a part
-  long Part::getSize() {
+  uint32_t Part::getSize() {
     return Bit::btoh24(data);
   }
 
   ///\brief Sets the payloadsize of a part
-  void Part::setSize(long newSize) {
+  void Part::setSize(uint32_t newSize) {
     Bit::htob24(data, newSize);
   }
 
-  ///\brief Retruns the duration of a part
+  ///\brief Returns the duration of a part
-  short Part::getDuration() {
+  uint32_t Part::getDuration() {
-    return Bit::btohs(data + 3);
+    return Bit::btoh24(data + 3);
   }
 
   ///\brief Sets the duration of a part
-  void Part::setDuration(short newDuration) {
+  void Part::setDuration(uint32_t newDuration) {
-    Bit::htobs(data + 3, newDuration);
+    Bit::htob24(data + 3, newDuration);
   }
 
   ///\brief returns the offset of a part
-  long Part::getOffset() {
+  uint32_t Part::getOffset() {
-    return Bit::btohl(data + 5);
+    return Bit::btoh24(data + 6);
   }
 
   ///\brief Sets the offset of a part
-  void Part::setOffset(long newOffset) {
+  void Part::setOffset(uint32_t newOffset) {
-    Bit::htobl(data + 5, newOffset);
+    Bit::htob24(data + 6, newOffset);
   }
 
   ///\brief Returns the data of a part
@@ -913,93 +926,49 @@ namespace DTSC {
 
   ///\brief Returns the byteposition of a keyframe
   unsigned long long Key::getBpos() {
-#ifdef BIGMETA
     return Bit::btohll(data);
-#else
-    return (((unsigned long long)data[0] << 32) | (data[1] << 24) | (data[2] << 16) | (data[3] << 8) | data[4]);
-#endif
   }
 
   void Key::setBpos(unsigned long long newBpos) {
-#ifdef BIGMETA
     Bit::htobll(data, newBpos);
-#else
-    data[4] = newBpos & 0xFF;
-    data[3] = (newBpos >> 8) & 0xFF;
-    data[2] = (newBpos >> 16) & 0xFF;
-    data[1] = (newBpos >> 24) & 0xFF;
-    data[0] = (newBpos >> 32) & 0xFF;
-#endif
   }
 
   unsigned long Key::getLength() {
-#ifdef BIGMETA
     return Bit::btoh24(data+8);
-#else
-    return Bit::btoh24(data+5);
-#endif
   }
 
   void Key::setLength(unsigned long newLength) {
-#ifdef BIGMETA
     Bit::htob24(data+8, newLength);
-#else
-    Bit::htob24(data+5, newLength);
-#endif
   }
 
   ///\brief Returns the number of a keyframe
   unsigned long Key::getNumber() {
-#ifdef BIGMETA
     return Bit::btohl(data + 11);
-#else
-    return Bit::btohs(data + 8);
-#endif
   }
 
   ///\brief Sets the number of a keyframe
   void Key::setNumber(unsigned long newNumber) {
-#ifdef BIGMETA
     Bit::htobl(data + 11, newNumber);
-#else
-    Bit::htobs(data + 8, newNumber);
-#endif
   }
 
   ///\brief Returns the number of parts of a keyframe
   unsigned short Key::getParts() {
-#ifdef BIGMETA
     return Bit::btohs(data + 15);
-#else
-    return Bit::btohs(data + 10);
-#endif
   }
 
   ///\brief Sets the number of parts of a keyframe
   void Key::setParts(unsigned short newParts) {
-#ifdef BIGMETA
     Bit::htobs(data + 15, newParts);
-#else
-    Bit::htobs(data + 10, newParts);
-#endif
   }
 
   ///\brief Returns the timestamp of a keyframe
   unsigned long long Key::getTime() {
-#ifdef BIGMETA
     return Bit::btohll(data + 17);
-#else
-    return Bit::btohl(data + 12);
-#endif
   }
 
   ///\brief Sets the timestamp of a keyframe
   void Key::setTime(unsigned long long newTime) {
-#ifdef BIGMETA
     Bit::htobll(data + 17, newTime);
-#else
-    Bit::htobl(data + 12, newTime);
-#endif
   }
 
   ///\brief Returns the data of this keyframe struct
@@ -1036,38 +1005,22 @@ namespace DTSC {
 
   ///\brief Returns the number of the first keyframe in this fragment
   unsigned long Fragment::getNumber() {
-#ifdef BIGMETA
     return Bit::btohl(data + 5);
-#else
-    return Bit::btohs(data + 5);
-#endif
   }
 
   ///\brief Sets the number of the first keyframe in this fragment
   void Fragment::setNumber(unsigned long newNumber) {
-#ifdef BIGMETA
     Bit::htobl(data + 5, newNumber);
-#else
-    Bit::htobs(data + 5, newNumber);
-#endif
   }
 
   ///\brief Returns the size of a fragment
   unsigned long Fragment::getSize() {
-#ifdef BIGMETA
     return Bit::btohl(data + 9);
-#else
-    return Bit::btohl(data + 7);
-#endif
   }
 
   ///\brief Sets the size of a fragement
   void Fragment::setSize(unsigned long newSize) {
-#ifdef BIGMETA
     Bit::htobl(data + 9, newSize);
-#else
-    Bit::htobl(data + 7, newSize);
-#endif
   }
 
   ///\brief Returns thte data of this fragment structure
@@ -1348,6 +1301,7 @@ namespace DTSC {
   Meta::Meta() {
     vod = false;
     live = false;
+    version = DTSH_VERSION;
     moreheader = 0;
     merged = false;
     bufferWindow = 0;
@@ -1361,6 +1315,7 @@ namespace DTSC {
     tracks.clear();
     vod = source.getFlag("vod");
     live = source.getFlag("live");
+    version = source.getInt("version");
     merged = source.getFlag("merged");
     bufferWindow = source.getInt("buffer_window");
     moreheader = source.getInt("moreheader");
@@ -1383,6 +1338,7 @@ namespace DTSC {
   Meta::Meta(JSON::Value & meta) {
     vod = meta.isMember("vod") && meta["vod"];
     live = meta.isMember("live") && meta["live"];
+    version = meta.isMember("version") ? meta["version"].asInt() : 0;
     merged = meta.isMember("merged") && meta["merged"];
     bufferWindow = 0;
     if (meta.isMember("buffer_window")) {
@@ -1798,6 +1754,7 @@ namespace DTSC {
         dataLen += it->second.getSendLen(skipDynamic);
       }
     }
+    if (version){dataLen += 17;}
     return dataLen + 8; //add 8 bytes header
   }
 
@@ -1823,6 +1780,10 @@ namespace DTSC {
       writePointer(p, "\000\006merged\001", 9);
       writePointer(p, convertLongLong(1), 8);
     }
+    if (version) {
+      writePointer(p, "\000\006version\001", 9);
+      writePointer(p, convertLongLong(version), 8);
+    }
     if (bufferWindow) {
       writePointer(p, "\000\015buffer_window\001", 16);
       writePointer(p, convertLongLong(bufferWindow), 8);
@@ -1856,6 +1817,10 @@ namespace DTSC {
       conn.SendNow("\000\006merged\001", 9);
       conn.SendNow(convertLongLong(1), 8);
     }
+    if (version) {
+      conn.SendNow("\000\006version\001", 9);
+      conn.SendNow(convertLongLong(version), 8);
+    }
     if (bufferWindow) {
       conn.SendNow("\000\015buffer_window\001", 16);
       conn.SendNow(convertLongLong(bufferWindow), 8);
@@ -1948,10 +1913,20 @@ namespace DTSC {
     if (bufferWindow) {
       result["buffer_window"] = bufferWindow;
     }
+    if (version) {
+      result["version"] = (long long)version;
+    }
     result["moreheader"] = moreheader;
     return result;
   }
 
+  ///\brief Writes metadata to a filename. Wipes existing contents, if any.
+  bool Meta::toFile(const std::string & fileName){
+    std::ofstream oFile(fileName.c_str());
+    oFile << toJSON().toNetPacked();
+    oFile.close();
+  }
+
   ///\brief Converts a meta object to a human readable string
   ///\param str The stringstream to append to
   ///\param indent the amount of indentation needed

lib/procs.h

@@ -17,17 +17,17 @@ namespace Util {
     private:
       static bool childRunning(pid_t p);
       static tthread::mutex plistMutex;
-      static tthread::thread * reaper_thread;
       static std::set<pid_t> plist; ///< Holds active process list.
-      static bool handler_set; ///< If true, the sigchld handler has been setup.
       static bool thread_handler;///< True while thread handler should be running.
       static void childsig_handler(int signum);
       static void exit_handler();
       static void runCmd(std::string & cmd);
-      static void setHandler();
       static char* const* dequeToArgv(std::deque<std::string> & argDeq);
       static void grim_reaper(void * n);
     public:
+      static tthread::thread * reaper_thread;
+      static bool handler_set; ///< If true, the sigchld handler has been setup.
+      static void setHandler();
       static std::string getOutputOf(char * const * argv);
       static std::string getOutputOf(std::deque<std::string> & argDeq);
       static pid_t StartPiped(char * const * argv, int * fdin, int * fdout, int * fderr);

lib/rtmpchunks.cpp

@@ -537,9 +537,14 @@ bool RTMPStream::doHandshake() {
   Secure::hmac_sha256bin(pTempBuffer, 1504, genuineFMSKey, 36, (char*)Server + serverDigestOffset);
 
   //SECOND 1536 bytes for server response
-  char pTempHash[32];
+  if (_validationScheme == 5 && Version == 3){
-  Secure::hmac_sha256bin((char*)Client + keyChallengeIndex, 32, genuineFMSKey, 68, pTempHash);
+    //copy exactly from client
-  Secure::hmac_sha256bin((char*)Server + 1536, 1536 - 32, pTempHash, 32, (char*)Server + 1536 * 2 - 32);
+    memcpy(Server+1536, Client, 1536);
+  }else{
+    char pTempHash[32];
+    Secure::hmac_sha256bin((char*)Client + keyChallengeIndex, 32, genuineFMSKey, 68, pTempHash);
+    Secure::hmac_sha256bin((char*)Server + 1536, 1536 - 32, pTempHash, 32, (char*)Server + 1536 * 2 - 32);
+  }
 
   Server[ -1] = Version;
   RTMPStream::snd_cnt += 3073;

lib/shared_memory.cpp

@@ -22,6 +22,11 @@
 #endif
 
 
+/// Forces a disconnect to all users.
+static void killStatistics(char * data, size_t len, unsigned int id){
+  (*(data - 1)) = 60 | ((*(data - 1))&0x80);//Send disconnect message;
+}
+
 namespace IPC {
 
 #if defined(__CYGWIN__) || defined(_WIN32)
@@ -776,7 +781,6 @@ namespace IPC {
 
   ///\brief The deconstructor
   sharedServer::~sharedServer() {
-    finishEach();
     mySemaphore.close();
     mySemaphore.unlink();
   }
@@ -833,21 +837,16 @@ namespace IPC {
     return false;
   }
 
-  ///Disconnect all connected users
+  ///Disconnect all connected users, waits at most 2.5 seconds until completed
   void sharedServer::finishEach(){
     if (!hasCounter){
       return;
     }
-    for (std::set<sharedPage>::iterator it = myPages.begin(); it != myPages.end(); it++) {
+    unsigned int c = 0;//to prevent eternal loops
-      if (!it->mapped || !it->len) {
+    do{
-        break;
+      parseEach(killStatistics);
-      }
+      Util::wait(250);
-      unsigned int offset = 0;
+    }while(amount && c++ < 10);
-      while (offset + payLen + (hasCounter ? 1 : 0) <= it->len) {
-        it->mapped[offset] = 126;
-        offset += payLen + (hasCounter ? 1 : 0);
-      }
-    }
   }
 
   ///Returns a pointer to the data for the given index.
@@ -917,17 +916,18 @@ namespace IPC {
             if (*counter & 0x80){
               connectedUsers++;
             }
+            char countNum = (*counter) & 0x7F;
             if (id >= amount) {
               amount = id + 1;
               VERYHIGH_MSG("Shared memory %s is now at count %u", baseName.c_str(), amount);
             }
             uint32_t tmpPID = *((uint32_t *)(it->mapped + 1 + offset + payLen - 4));
-            if (!Util::Procs::isRunning(tmpPID) && !(*counter == 126 || *counter == 127)){
+            if (!Util::Procs::isRunning(tmpPID) && !(countNum == 126 || countNum == 127)){
               WARN_MSG("process disappeared, timing out. (pid %lu)", tmpPID);
-              *counter = 126; //if process is already dead, instant timeout.
+              *counter = 125 | (0x80 & (*counter)); //if process is already dead, instant timeout.
             }
             callback(it->mapped + offset + 1, payLen, id);
-            switch (*counter) {
+            switch (countNum) {
               case 127:
                 HIGH_MSG("Client %u requested disconnect", id);
                 break;
@@ -937,9 +937,9 @@ namespace IPC {
               default:
 #ifndef NOCRASHCHECK
                 if (tmpPID) {
-                  if (*counter > 10 && *counter < 126) {
+                  if (countNum > 10 && countNum < 60) {
-                    if (*counter < 30) {
+                    if (countNum < 30) {
-                      if (*counter > 15) {
+                      if (countNum > 15) {
                         WARN_MSG("Process %d is unresponsive", tmpPID);
                       }
                       Util::Procs::Stop(tmpPID); //soft kill
@@ -948,11 +948,22 @@ namespace IPC {
                       Util::Procs::Murder(tmpPID); //improved kill
                     }
                   }
+                  if (countNum > 70) {
+                    if (countNum < 90) {
+                      if (countNum > 75) {
+                        WARN_MSG("Stopping process %d is unresponsive", tmpPID);
+                      }
+                      Util::Procs::Stop(tmpPID); //soft kill
+                    } else {
+                      ERROR_MSG("Killing unresponsive stopping process %d", tmpPID);
+                      Util::Procs::Murder(tmpPID); //improved kill
+                    }
+                  }
                 }
 #endif
                 break;
             }
-            if (*counter == 127 || *counter == 126){
+            if (countNum == 127 || countNum == 126){
               memset(it->mapped + offset + 1, 0, payLen);
               it->mapped[offset] = 0;
             } else {
@@ -1153,7 +1164,7 @@ namespace IPC {
     }
     if (myPage.mapped) {
       semGuard tmpGuard(&mySemaphore);
-      myPage.mapped[offsetOnPage] = 126;
+      myPage.mapped[offsetOnPage] = 126 | (countAsViewer?0x80:0);
       HIGH_MSG("sharedClient finished ID %d", offsetOnPage/(payLen+1));
     }
   }
@@ -1164,16 +1175,19 @@ namespace IPC {
       DEBUG_MSG(DLVL_WARN, "Trying to keep-alive an element without counters");
       return;
     }
-    if ((myPage.mapped[offsetOnPage] & 0x7F) < 126) {
+    if (isAlive()){
       myPage.mapped[offsetOnPage] = (countAsViewer ? 0x81 : 0x01);
     }
   }
 
   bool sharedClient::isAlive() {
     if (!hasCounter) {
-      return true;
+      return (myPage.mapped != 0);
     }
-    return (myPage.mapped[offsetOnPage] & 0x7F) < 126;
+    if (myPage.mapped){
+      return (myPage.mapped[offsetOnPage] & 0x7F) < 60;
+    }
+    return false;
   }
 
   ///\brief Get a pointer to the data of this client

lib/shared_memory.h

@@ -186,6 +186,7 @@ namespace IPC {
       ///\brief The amount of connected clients
       unsigned int amount;
       unsigned int connectedUsers;
+      void finishEach();
     private:
       bool isInUse(unsigned int id);
       void newPage();
@@ -200,7 +201,6 @@ namespace IPC {
       semaphore mySemaphore;
       ///\brief Whether the payload has a counter, if so, it is added in front of the payload
       bool hasCounter;
-      void finishEach();
   };
 
   ///\brief The client part of a server/client model for shared memory.

src/controller/controller.cpp

@@ -34,6 +34,7 @@
 #include <ctime>
 #include <vector>
 #include <sys/stat.h>
+#include <sys/wait.h>
 #include <mist/config.h>
 #include <mist/socket.h>
 #include <mist/http_parser.h>
@@ -95,6 +96,7 @@ void createAccount (std::string account){
   }
 }
 
+
 /// Status monitoring thread.
 /// Will check outputs, inputs and converters every five seconds
 void statusMonitor(void * np){
@@ -138,15 +140,14 @@ void statusMonitor(void * np){
   configLock.unlink();
 }
 
-///\brief The main entry point for the controller.
+///\brief The main loop for the controller.
 /// 
 /// \triggers 
 /// The `"SYSTEM_STOP"` trigger is global, and is ran when the controller shuts down. If cancelled, the controller does not shut down and will attempt to re-open the API socket. Its payload is:
 /// ~~~~~~~~~~~~~~~
 /// shutdown reason
 /// ~~~~~~~~~~~~~~~
-int main(int argc, char ** argv){
+int main_loop(int argc, char ** argv){
-  
   Controller::Storage = JSON::fromFile("config.json");
   JSON::Value stored_port = JSON::fromString("{\"long\":\"port\", \"short\":\"p\", \"arg\":\"integer\", \"help\":\"TCP port to listen on.\"}");
   stored_port["default"] = Controller::Storage["config"]["controller"]["port"];
@@ -163,7 +164,6 @@ int main(int argc, char ** argv){
   if ( !stored_user["default"]){
     stored_user["default"] = "root";
   }
-  Controller::conf = Util::Config(argv[0]);
   Controller::conf.addOption("port", stored_port);
   Controller::conf.addOption("interface", stored_interface);
   Controller::conf.addOption("username", stored_user);
@@ -205,6 +205,7 @@ int main(int argc, char ** argv){
     if (pipe(pipeErr) >= 0){
       dup2(pipeErr[1], STDERR_FILENO);//cause stderr to write to the pipe
       close(pipeErr[1]);//close the unneeded pipe file descriptor
+      Util::Procs::socketList.insert(pipeErr[0]);
       tthread::thread msghandler(Controller::handleMsg, (void*)(((char*)0) + pipeErr[0]));
       msghandler.detach();
     }
@@ -262,7 +263,7 @@ int main(int argc, char ** argv){
             }
           }else if(yna(in_string) == 'a'){
             //abort controller startup
-            return 0;
+            return 1;
           }
         }
       }
@@ -284,7 +285,7 @@ int main(int argc, char ** argv){
             }
           }else if(yna(in_string) == 'a'){
             //abort controller startup
-            return 0;
+            return 1;
           }
         }
       }
@@ -334,10 +335,10 @@ int main(int argc, char ** argv){
   }else{
     shutdown_reason = "socket problem (API port closed)";
   }
-  /*LTS-START*/
   if (Controller::restarting){
-    shutdown_reason = "update (on request)";
+    shutdown_reason = "restart (on request)";
   }
+  /*LTS-START*/
   if(Triggers::shouldTrigger("SYSTEM_STOP")){ 
     if (!Triggers::doTrigger("SYSTEM_STOP", shutdown_reason)){
       Controller::conf.is_active = true;
@@ -348,8 +349,10 @@ int main(int argc, char ** argv){
       Controller::Log("CONF", "Controller shutting down because of "+shutdown_reason);
     }
   }else{
+    /*LTS-END*/
     Controller::conf.is_active = false;
     Controller::Log("CONF", "Controller shutting down because of "+shutdown_reason);
+    /*LTS-START*/
   }
   }//indentation intentionally wrong, to minimize Pro/nonPro diffs
   /*LTS-END*/
@@ -374,16 +377,85 @@ int main(int argc, char ** argv){
   Util::Procs::StopAll();
   //give everything some time to print messages
   Util::wait(100);
+  std::cout << "Killed all processes, wrote config to disk. Exiting." << std::endl;
+  if (Controller::restarting){
+    return 42;
+  }
   //close stderr to make the stderr reading thread exit
   close(STDERR_FILENO);
-  std::cout << "Killed all processes, wrote config to disk. Exiting." << std::endl;
+  return 0;
-  /*LTS-START*/
+}
-  if (Controller::restarting){
+
-    std::string myFile = Util::getMyPath() + "MistController";
+void handleUSR1(int signum, siginfo_t * sigInfo, void * ignore){
-    execvp(myFile.c_str(), argv);
+  Controller::Log("CONF", "USR1 received - restarting controller");
-    std::cout << "Error restarting: " << strerror(errno) << std::endl;
+  Controller::restarting = true;
-  }
+  raise(SIGINT); //trigger restart
-  /*LTS-END*/
+}
+
+///\brief The controller angel process.
+///Starts a forked main_loop in a loop. Yes, you read that right.
+int main(int argc, char ** argv){
+  Util::Procs::setHandler();//set child handler
+  {
+    struct sigaction new_action;
+    struct sigaction cur_action;
+    new_action.sa_sigaction = handleUSR1;
+    sigemptyset(&new_action.sa_mask);
+    new_action.sa_flags = 0;
+    sigaction(SIGUSR1, &new_action, NULL);
+  }
+
+  Controller::conf = Util::Config(argv[0]);
+  Controller::conf.activate();
+  uint64_t reTimer = 0;
+  while (Controller::conf.is_active){
+    pid_t pid = fork();
+    if (pid == 0){
+      Util::Procs::handler_set = false;
+      Util::Procs::reaper_thread = 0;
+      {
+        struct sigaction new_action;
+        struct sigaction cur_action;
+        new_action.sa_sigaction = handleUSR1;
+        sigemptyset(&new_action.sa_mask);
+        new_action.sa_flags = 0;
+        sigaction(SIGUSR1, &new_action, NULL);
+      }
+      return main_loop(argc, argv);
+    }
+    if (pid == -1){
+      FAIL_MSG("Unable to spawn controller process!");
+      return 2;
+    }
+    //wait for the process to exit
+    int status;
+    while (waitpid(pid, &status, 0) != pid && errno == EINTR){
+      if (Controller::restarting){
+        Controller::conf.is_active = true;
+        Controller::restarting = false;
+        kill(pid, SIGUSR1);
+      }
+      if (!Controller::conf.is_active){
+        INFO_MSG("Shutting down controller because of signal interrupt...");
+        Util::Procs::Stop(pid);
+      }
+      continue;
+    }
+    //if the exit was clean, don't restart it
+    if (WIFEXITED(status) && (WEXITSTATUS(status) == 0)){
+      MEDIUM_MSG("Controller shut down cleanly");
+      break;
+    }
+    if (WIFEXITED(status) && (WEXITSTATUS(status) == 42)){
+      WARN_MSG("Refreshing angel process for update");
+      std::string myFile = Util::getMyPath() + "MistController";
+      execvp(myFile.c_str(), argv);
+      FAIL_MSG("Error restarting: %s", strerror(errno));
+    }
+    INFO_MSG("Controller uncleanly shut down! Restarting in %llu...", reTimer);
+    Util::wait(reTimer);
+    reTimer += 1000;
+  }
   return 0;
 }
 

src/controller/controller_storage.cpp

@@ -18,6 +18,7 @@ namespace Controller {
   tthread::mutex logMutex;
   unsigned long long logCounter = 0;
   bool configChanged = false;
+  bool restarting = false;
 
   ///\brief Store and print a log message.
   ///\param kind The type of message.

src/controller/controller_storage.h

@@ -9,6 +9,7 @@ namespace Controller {
   extern tthread::mutex logMutex;///< Mutex for log thread.
   extern tthread::mutex configMutex;///< Mutex for server config access.
   extern bool configChanged; ///< Bool that indicates config must be written to SHM.
+  extern bool restarting;///< Signals if the controller is shutting down (false) or restarting (true).
   extern unsigned long long logCounter; ///<Count of logged messages since boot
   
   /// Store and print a log message.

src/controller/controller_updater.cpp

@@ -18,7 +18,6 @@
 #include "controller_updater.h"
 
 namespace Controller {
-  bool restarting = false;
   JSON::Value updates;
   std::string uniqId;
 

src/controller/controller_updater.h

@@ -8,7 +8,6 @@
 #endif
 
 namespace Controller {
-  extern bool restarting;///< Signals if the controller is shutting down (false) or restarting (true).
   extern JSON::Value updates;
   extern std::string uniqId;
 

src/input/input.cpp

@@ -581,5 +581,19 @@ namespace Mist {
   void Input::quitPlay() {
     playing = 0;
   }
+
+  bool Input::readExistingHeader(){
+    DTSC::File tmpdtsh(config->getString("input") + ".dtsh");
+    if (!tmpdtsh){
+      return false;
+    }
+    if (tmpdtsh.getMeta().version != DTSH_VERSION){
+      INFO_MSG("Updating wrong version header file from version %llu to %llu", tmpdtsh.getMeta().version, DTSH_VERSION);
+      return false;
+    }
+    myMeta = tmpdtsh.getMeta();
+    return true;
+  }
+
 }
 

src/input/input.h

@@ -29,6 +29,7 @@ namespace Mist {
       static void callbackWrapper(char * data, size_t len, unsigned int id);
       virtual bool setup() = 0;
       virtual bool readHeader() = 0;
+      virtual bool readExistingHeader();
       virtual bool atKeyFrame();
       virtual void getNext(bool smart = true) {};
       virtual void seek(int seekTime){};

src/input/input_buffer.cpp

@@ -526,6 +526,7 @@ namespace Mist {
     } else if (everHadPush && !resumeMode && config->is_active) {
       INFO_MSG("Shutting down buffer because resume mode is disabled and the source disconnected");
       config->is_active = false;
+      userPage.finishEach();
     }
   }
 

src/input/input_flv.cpp

@@ -49,23 +49,13 @@ namespace Mist {
   }
 
   bool inputFLV::readHeader() {
-    JSON::Value lastPack;
+    if (!inFile){return false;}
-    if (!inFile) {
-      return false;
-    }
     //See whether a separate header file exists.
-    DTSC::File tmp(config->getString("input") + ".dtsh");
+    if (readExistingHeader()){return true;}
-    if (tmp){
-      myMeta = tmp.getMeta();
-      if (myMeta){
-        return true;
-      }else{
-        myMeta = DTSC::Meta();
-      }
-    }
     //Create header file from FLV data
     fseek(inFile, 13, SEEK_SET);
     AMF::Object amf_storage;
+    JSON::Value lastPack;
     long long int lastBytePos = 13;
     while (!feof(inFile) && !FLV::Parse_Error){
       if (tmpTag.FileLoader(inFile)){
@@ -80,9 +70,7 @@ namespace Mist {
       std::cerr << FLV::Error_Str << std::endl;
       return false;
     }
-    std::ofstream oFile(std::string(config->getString("input") + ".dtsh").c_str());
+    myMeta.toFile(config->getString("input") + ".dtsh");
-    oFile << myMeta.toJSON().toNetPacked();
-    oFile.close();
     return true;
   }
   

src/input/input_mp3.cpp

@@ -47,17 +47,9 @@ namespace Mist {
   }
 
   bool inputMP3::readHeader() {
-    if (!inFile) {
+    if (!inFile){return false;}
-      return false;
-    }
     //See whether a separate header file exists.
-    DTSC::File tmp(config->getString("input") + ".dtsh");
+    if (readExistingHeader()){return true;}
-    if (tmp){
-      myMeta = tmp.getMeta();
-      if (myMeta){
-        return true;
-      }
-    }
     myMeta = DTSC::Meta();
     myMeta.tracks[1].trackID = 1;
     myMeta.tracks[1].type = "audio";
@@ -93,9 +85,7 @@ namespace Mist {
 
     fseek(inFile, 0, SEEK_SET);
     timestamp = 0;
-    std::ofstream oFile(std::string(config->getString("input") + ".dtsh").c_str());
+    myMeta.toFile(config->getString("input") + ".dtsh");
-    oFile << myMeta.toJSON().toNetPacked();
-    oFile.close();
     return true;
   }
   

src/input/input_ogg.cpp

@@ -222,11 +222,7 @@ namespace Mist {
       getNext();
     }
 
-    std::ofstream oFile(std::string(config->getString("input") + ".dtsh").c_str());
+    myMeta.toFile(config->getString("input") + ".dtsh");
-    oFile << myMeta.toJSON().toNetPacked();
-    oFile.close();
-
-    //myMeta.toPrettyString(std::cout);
     return true;
   }
 

src/output/output.cpp

@@ -73,6 +73,10 @@ namespace Mist {
   }
 
   void Output::updateMeta(){
+    //cancel if not alive
+    if (!nProxy.userClient.isAlive()){
+      return;
+    }
     //read metadata from page to myMeta variable
     if (nProxy.metaPages[0].mapped){
       IPC::semaphore * liveSem = 0;
@@ -249,22 +253,30 @@ namespace Mist {
       statsPage.finish();
       myConn.resetCounter();
     }
-    statsPage = IPC::sharedClient(SHM_STATISTICS, STAT_EX_SIZE, true);
     if (nProxy.userClient.getData()){
       nProxy.userClient.finish();
     }
     char userPageName[NAME_BUFFER_SIZE];
     snprintf(userPageName, NAME_BUFFER_SIZE, SHM_USERS, streamName.c_str());
-    nProxy.userClient = IPC::sharedClient(userPageName, PLAY_EX_SIZE, true);
+    unsigned int attempts = 0;
+    while (!nProxy.userClient.isAlive() && ++attempts < 20 && Util::streamAlive(streamName)){
+      nProxy.userClient = IPC::sharedClient(userPageName, PLAY_EX_SIZE, true);
+    }
+    if (!nProxy.userClient.isAlive()){
+      FAIL_MSG("Could not register as client for %s", streamName.c_str());
+      onFail();
+      return;
+    }
     char pageId[NAME_BUFFER_SIZE];
     snprintf(pageId, NAME_BUFFER_SIZE, SHM_STREAM_INDEX, streamName.c_str());
     nProxy.metaPages.clear();
     nProxy.metaPages[0].init(pageId, DEFAULT_STRM_PAGE_SIZE);
     if (!nProxy.metaPages[0].mapped){
-      FAIL_MSG("Could not connect to server for %s", streamName.c_str());
+      FAIL_MSG("Could not connect to data for %s", streamName.c_str());
       onFail();
       return;
     }
+    statsPage = IPC::sharedClient(SHM_STATISTICS, STAT_EX_SIZE, true);
     stats(true);
     updateMeta();
     selectDefaultTracks();
@@ -490,8 +502,12 @@ namespace Mist {
   }
   
   void Output::loadPageForKey(long unsigned int trackId, long long int keyNum){
+    if (!myMeta.tracks.count(trackId) || !myMeta.tracks[trackId].keys.size()){
+      WARN_MSG("Load for track %lu key %lld aborted - track is empty", trackId, keyNum);
+      return;
+    }
     if (myMeta.vod && keyNum > myMeta.tracks[trackId].keys.rbegin()->getNumber()){
-      INFO_MSG("Seek in track %lu to key %lld aborted, is > %lld", trackId, keyNum, myMeta.tracks[trackId].keys.rbegin()->getNumber());
+      INFO_MSG("Load for track %lu key %lld aborted, is > %lld", trackId, keyNum, myMeta.tracks[trackId].keys.rbegin()->getNumber());
       nProxy.curPage.erase(trackId);
       currKeyOpen.erase(trackId);
       return;
@@ -1229,25 +1245,28 @@ namespace Mist {
       //check where the next key is
       nxtKeyNum[nxt.tid] = getKeyForTime(nxt.tid, thisPacket.getTime());
       int nextPage = pageNumForKey(nxt.tid, nxtKeyNum[nxt.tid]+1);
-      //are we live, and the next key hasn't shown up on another page, then we're waiting.
+      //if the next key hasn't shown up on another page, then we're waiting.
-      if (myMeta.live && currKeyOpen.count(nxt.tid) && (currKeyOpen[nxt.tid] == (unsigned int)nextPage || nextPage == -1)){
+      //VoD might be slow, so we check VoD case also, just in case
+      if (currKeyOpen.count(nxt.tid) && (currKeyOpen[nxt.tid] == (unsigned int)nextPage || nextPage == -1)){
         if (++emptyCount < 100){
           Util::wait(250);
           //we're waiting for new data to show up
           if (emptyCount % 64 == 0){
             reconnect();//reconnect every 16 seconds
           }else{
-            if (emptyCount % 4 == 0){
+            //updating meta is only useful with live streams
+            if (myMeta.live && emptyCount % 4 == 0){
               updateMeta();
             }
           }
         }else{
           //after ~25 seconds, give up and drop the track.
-          dropTrack(nxt.tid, "EOP: could not reload empty packet");
+          dropTrack(nxt.tid, "EOP: data wait timeout");
         }
         return false;
       }
 
+      //The next key showed up on another page!
       //We've simply reached the end of the page. Load the next key = next page.
       loadPageForKey(nxt.tid, ++nxtKeyNum[nxt.tid]);
       nxt.offset = 0;
@@ -1297,6 +1316,10 @@ namespace Mist {
 
     //when live, every keyframe, check correctness of the keyframe number
     if (myMeta.live && thisPacket.getFlag("keyframe")){
+      //cancel if not alive
+      if (!nProxy.userClient.isAlive()){
+        return false;
+      }
       //Check whether returned keyframe is correct. If not, wait for approximately 10 seconds while checking.
       //Failure here will cause tracks to drop due to inconsistent internal state.
       nxtKeyNum[nxt.tid] = getKeyForTime(nxt.tid, thisPacket.getTime());

src/output/output_rtmp.cpp

@@ -586,6 +586,16 @@ namespace Mist {
   void OutRTMP::parseAMFCommand(AMF::Object & amfData, int messageType, int streamId) {
     MEDIUM_MSG("Received command: %s", amfData.Print().c_str());
     HIGH_MSG("AMF0 command: %s", amfData.getContentP(0)->StrValue().c_str());
+    if (amfData.getContentP(0)->StrValue() == "xsbwtest") {
+      //send a _result reply
+      AMF::Object amfReply("container", AMF::AMF0_DDV_CONTAINER);
+      amfReply.addContent(AMF::Object("", "_error")); //result success
+      amfReply.addContent(amfData.getContent(1)); //same transaction ID
+      amfReply.addContent(AMF::Object("", amfData.getContentP(0)->StrValue())); //null - command info
+      amfReply.addContent(AMF::Object("", "Hai XSplit user!")); //stream ID?
+      sendCommand(amfReply, messageType, streamId);
+      return;
+    }
     if (amfData.getContentP(0)->StrValue() == "connect") {
       double objencoding = 0;
       if (amfData.getContentP(2)->getContentP("objectEncoding")) {