4 files changed, 25 insertions, 20 deletions
diff --git a/src/net/ea/network.cpp b/src/net/ea/network.cpp
index 87ab01722..ab76fd220 100644
--- a/src/net/ea/network.cpp
+++ b/src/net/ea/network.cpp
@@ -61,7 +61,8 @@ Network::Network() :
     mState(IDLE),
     mError(),
     mWorkerThread(nullptr),
-    mMutex(SDL_CreateMutex()),
+    mMutexIn(SDL_CreateMutex()),
+    mMutexOut(SDL_CreateMutex()),
     mSleep(config.getIntValue("networksleep"))
 {
     TcpNet::init();
@@ -72,8 +73,10 @@ Network::~Network()
     if (mState != IDLE && mState != NET_ERROR)
         disconnect();
 
-    SDL_DestroyMutex(mMutex);
-    mMutex = nullptr;
+    SDL_DestroyMutex(mMutexIn);
+    mMutexIn = nullptr;
+    SDL_DestroyMutex(mMutexOut);
+    mMutexOut = nullptr;
 
     delete []mInBuffer;
     delete []mOutBuffer;
@@ -146,25 +149,26 @@ void Network::flush()
     if (!mOutSize || mState != CONNECTED)
         return;
 
-    SDL_mutexP(mMutex);
+    SDL_mutexP(mMutexOut);
     const int ret = TcpNet::send(mSocket, mOutBuffer, mOutSize);
     DEBUGLOG(std::string("Send ").append(toString(mOutSize)).append(" bytes"));
     if (ret < static_cast<int>(mOutSize))
     {
+        SDL_mutexV(mMutexOut);
         setError("Error in TcpNet::send(): " +
             std::string(TcpNet::getError()));
     }
     mOutSize = 0;
-    SDL_mutexV(mMutex);
+    SDL_mutexV(mMutexOut);
 }
 
 void Network::skip(const int len)
 {
-    SDL_mutexP(mMutex);
+    SDL_mutexP(mMutexIn);
     mToSkip += len;
     if (!mInSize)
     {
-        SDL_mutexV(mMutex);
+        SDL_mutexV(mMutexIn);
         return;
     }
 
@@ -179,7 +183,7 @@ void Network::skip(const int len)
         mToSkip -= mInSize;
         mInSize = 0;
     }
-    SDL_mutexV(mMutex);
+    SDL_mutexV(mMutexIn);
 }
 
 bool Network::realConnect()
@@ -252,10 +256,10 @@ void Network::receive()
             case 1:
             {
                 // Receive data from the socket
-                SDL_mutexP(mMutex);
+                SDL_mutexP(mMutexIn);
                 if (mInSize > BUFFER_LIMIT)
                 {
-                    SDL_mutexV(mMutex);
+                    SDL_mutexV(mMutexIn);
                     SDL_Delay(100);
                     continue;
                 }
@@ -294,7 +298,7 @@ void Network::receive()
                         }
                     }
                 }
-                SDL_mutexV(mMutex);
+                SDL_mutexV(mMutexIn);
                 break;
             }
 
diff --git a/src/net/ea/network.h b/src/net/ea/network.h
index 81a95566b..9298f021f 100644
--- a/src/net/ea/network.h
+++ b/src/net/ea/network.h
@@ -104,7 +104,8 @@ class Network
         std::string mError;
 
         SDL_Thread *mWorkerThread;
-        SDL_mutex *mMutex;
+        SDL_mutex *mMutexIn;
+        SDL_mutex *mMutexOut;
         int mSleep;
 };
 
diff --git a/src/net/eathena/network.cpp b/src/net/eathena/network.cpp
index 4786d9ee7..481a945ba 100644
--- a/src/net/eathena/network.cpp
+++ b/src/net/eathena/network.cpp
@@ -162,7 +162,7 @@ void Network::dispatchMessages()
 {
     while (messageReady())
     {
-        SDL_mutexP(mMutex);
+        SDL_mutexP(mMutexIn);
         const int msgId = readWord(0);
         int len = -1;
         if (msgId == SMSG_SERVER_VERSION_RESPONSE)
@@ -183,7 +183,7 @@ void Network::dispatchMessages()
             len = readWord(2);
 
         MessageIn msg(mInBuffer, len);
-        SDL_mutexV(mMutex);
+        SDL_mutexV(mMutexIn);
 
         if (len == 0)
         {
@@ -210,7 +210,7 @@ bool Network::messageReady()
 {
     int len = -1;
 
-    SDL_mutexP(mMutex);
+    SDL_mutexP(mMutexIn);
     if (mInSize >= 2)
     {
         const int msgId = readWord(0);
@@ -226,7 +226,7 @@ bool Network::messageReady()
     }
 
     const bool ret = (mInSize >= static_cast<unsigned int>(len));
-    SDL_mutexV(mMutex);
+    SDL_mutexV(mMutexIn);
 
     return ret;
 }
diff --git a/src/net/tmwa/network.cpp b/src/net/tmwa/network.cpp
index 175713d49..9c1508ccb 100644
--- a/src/net/tmwa/network.cpp
+++ b/src/net/tmwa/network.cpp
@@ -141,7 +141,7 @@ void Network::dispatchMessages()
     BLOCK_START("Network::dispatchMessages 1")
     while (messageReady())
     {
-        SDL_mutexP(mMutex);
+        SDL_mutexP(mMutexIn);
         BLOCK_START("Network::dispatchMessages 2")
         const int msgId = readWord(0);
         int len;
@@ -156,7 +156,7 @@ void Network::dispatchMessages()
             len = readWord(2);
 
         MessageIn msg(mInBuffer, len);
-        SDL_mutexV(mMutex);
+        SDL_mutexV(mMutexIn);
         BLOCK_END("Network::dispatchMessages 2")
         BLOCK_START("Network::dispatchMessages 3")
 
@@ -187,7 +187,7 @@ bool Network::messageReady()
 {
     int len = -1;
 
-    SDL_mutexP(mMutex);
+    SDL_mutexP(mMutexIn);
     if (mInSize >= 2)
     {
         const int msgId = readWord(0);
@@ -210,7 +210,7 @@ bool Network::messageReady()
     }
 
     const bool ret = (mInSize >= static_cast<unsigned int>(len));
-    SDL_mutexV(mMutex);
+    SDL_mutexV(mMutexIn);
 
     return ret;
 }