cpp: Eliminate the use of fprintf [THRIFT-77]

Add printf and perror methods to TOutput and use them to
replace uses of fprintf in the C++ library.


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@676448 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/cpp/src/transport/TFileTransport.cpp b/lib/cpp/src/transport/TFileTransport.cpp
index d376795..121b4df 100644
--- a/lib/cpp/src/transport/TFileTransport.cpp
+++ b/lib/cpp/src/transport/TFileTransport.cpp
@@ -100,11 +100,10 @@
   if (fd_ > 0) {
     // flush any events in the queue
     flush();
-    fprintf(stderr, "error, current file (%s) not closed\n", filename_.c_str());
+    GlobalOutput.printf("error, current file (%s) not closed", filename_.c_str());
     if (-1 == ::close(fd_)) {
       int errno_copy = errno;
-      string errStr = "TFileTransport: resetOutputFile() ::close() " + TOutput::strerror_s(errno_copy);
-      GlobalOutput(errStr.c_str());
+      GlobalOutput.perror("TFileTransport: resetOutputFile() ::close() ", errno_copy);
       throw TTransportException(TTransportException::UNKNOWN, "TFileTransport: error in file close", errno_copy);
     }
   }
@@ -162,9 +161,7 @@
   // close logfile
   if (fd_ > 0) {
     if(-1 == ::close(fd_)) {
-      int errno_copy = errno;
-      string errStr = "TFileTransport: ~TFileTransport() ::close() " + TOutput::strerror_s(errno_copy);
-      GlobalOutput(errStr.c_str());
+      GlobalOutput.perror("TFileTransport: ~TFileTransport() ::close() ", errno);
     }
   }
 }
@@ -321,8 +318,7 @@
       if (enqueueBuffer_->isEmpty() && dequeueBuffer_->isEmpty()) {
         if (-1 == ::close(fd_)) {
           int errno_copy = errno;
-          string errStr = "TFileTransport: writerThread() ::close() " + TOutput::strerror_s(errno_copy);
-          GlobalOutput(errStr.c_str());
+          GlobalOutput.perror("TFileTransport: writerThread() ::close() ", errno_copy);
           throw TTransportException(TTransportException::UNKNOWN, "TFileTransport: error in file close", errno_copy);
         }
         // just be safe and sync to disk
@@ -370,8 +366,7 @@
             bzero(zeros, padding);
             if (-1 == ::write(fd_, zeros, padding)) {
               int errno_copy = errno;
-              string errStr = "TFileTransport: writerThread() error while padding zeros " + TOutput::strerror_s(errno_copy);
-              GlobalOutput(errStr.c_str());
+              GlobalOutput.perror("TFileTransport: writerThread() error while padding zeros ", errno_copy);
               throw TTransportException(TTransportException::UNKNOWN, "TFileTransport: error while padding zeros", errno_copy);
             }
             unflushed += padding;
@@ -383,8 +378,7 @@
         if (outEvent->eventSize_ > 0) {
           if (-1 == ::write(fd_, outEvent->eventBuff_, outEvent->eventSize_)) {
             int errno_copy = errno;
-            string errStr = "TFileTransport: error while writing event " + TOutput::strerror_s(errno_copy);
-            GlobalOutput(errStr.c_str());
+            GlobalOutput.perror("TFileTransport: error while writing event ", errno_copy);
             throw TTransportException(TTransportException::UNKNOWN, "TFileTransport: error while writing event", errno_copy);
           }
 
@@ -767,9 +761,8 @@
   // make sure open call was successful
   if(fd_ == -1) {
     int errno_copy = errno;
-    string errStr = "TFileTransport: openLogFile() ::open() file: " + filename_ + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
-    throw TTransportException(TTransportException::NOT_OPEN, errStr, errno_copy);
+    GlobalOutput.perror("TFileTransport: openLogFile() ::open() file: " + filename_, errno_copy);
+    throw TTransportException(TTransportException::NOT_OPEN, filename_, errno_copy);
   }
 
 }
diff --git a/lib/cpp/src/transport/TServerSocket.cpp b/lib/cpp/src/transport/TServerSocket.cpp
index 428dc1b..3493fc0 100644
--- a/lib/cpp/src/transport/TServerSocket.cpp
+++ b/lib/cpp/src/transport/TServerSocket.cpp
@@ -80,9 +80,7 @@
 void TServerSocket::listen() {
   int sv[2];
   if (-1 == socketpair(AF_LOCAL, SOCK_STREAM, 0, sv)) {
-    int errno_copy = errno;
-    string errStr = "TServerSocket::listen() socketpair() " + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TServerSocket::listen() socketpair() ", errno);
     intSock1_ = -1;
     intSock2_ = -1;
   } else {
@@ -102,7 +100,7 @@
   // Wildcard address
   error = getaddrinfo(NULL, port, &hints, &res0);
   if (error) {
-    fprintf(stderr, "getaddrinfo %d: %s\n", error, gai_strerror(error));
+    GlobalOutput.printf("getaddrinfo %d: %s", error, gai_strerror(error));
     close();
     throw TTransportException(TTransportException::NOT_OPEN, "Could not resolve host for server socket.");
   }
@@ -117,8 +115,7 @@
   serverSocket_ = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
   if (serverSocket_ == -1) {
     int errno_copy = errno;
-    string errStr = "TServerSocket::listen() socket() " + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TServerSocket::listen() socket() ", errno_copy);
     close();
     throw TTransportException(TTransportException::NOT_OPEN, "Could not create server socket.", errno_copy);
   }
@@ -128,8 +125,7 @@
   if (-1 == setsockopt(serverSocket_, SOL_SOCKET, SO_REUSEADDR,
                        &one, sizeof(one))) {
     int errno_copy = errno;
-    string errStr = "TServerSocket::listen() setsockopt() SO_REUSEADDR " + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TServerSocket::listen() setsockopt() SO_REUSEADDR ", errno_copy);
     close();
     throw TTransportException(TTransportException::NOT_OPEN, "Could not set SO_REUSEADDR", errno_copy);
   }
@@ -139,8 +135,7 @@
     if (-1 == setsockopt(serverSocket_, SOL_SOCKET, SO_SNDBUF,
                          &tcpSendBuffer_, sizeof(tcpSendBuffer_))) {
       int errno_copy = errno;
-      string errStr = "TServerSocket::listen() setsockopt() SO_SNDBUF " + TOutput::strerror_s(errno_copy);
-      GlobalOutput(errStr.c_str());
+      GlobalOutput.perror("TServerSocket::listen() setsockopt() SO_SNDBUF ", errno_copy);
       close();
       throw TTransportException(TTransportException::NOT_OPEN, "Could not set SO_SNDBUF", errno_copy);
     }
@@ -150,8 +145,7 @@
     if (-1 == setsockopt(serverSocket_, SOL_SOCKET, SO_RCVBUF,
                          &tcpRecvBuffer_, sizeof(tcpRecvBuffer_))) {
       int errno_copy = errno;
-      string errStr = "TServerSocket::listen() setsockopt() SO_RCVBUF " + TOutput::strerror_s(errno_copy);
-      GlobalOutput(errStr.c_str());
+      GlobalOutput.perror("TServerSocket::listen() setsockopt() SO_RCVBUF ", errno_copy);
       close();
       throw TTransportException(TTransportException::NOT_OPEN, "Could not set SO_RCVBUF", errno_copy);
     }
@@ -162,8 +156,7 @@
   if (-1 == setsockopt(serverSocket_, SOL_SOCKET, TCP_DEFER_ACCEPT,
                        &one, sizeof(one))) {
     int errno_copy = errno;
-    string errStr = "TServerSocket::listen() setsockopt() TCP_DEFER_ACCEPT " + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TServerSocket::listen() setsockopt() TCP_DEFER_ACCEPT ", errno_copy);
     close();
     throw TTransportException(TTransportException::NOT_OPEN, "Could not set TCP_DEFER_ACCEPT", errno_copy);
   }
@@ -173,7 +166,7 @@
   int zero = 0;
   if (-1 == setsockopt(serverSocket_, IPPROTO_IPV6, IPV6_V6ONLY,
                         &zero, sizeof(zero))) {
-    GlobalOutput("TServerSocket::listen() IPV6_V6ONLY");
+    GlobalOutput.perror("TServerSocket::listen() IPV6_V6ONLY ", errno);
   }
   #endif // #ifdef IPV6_V6ONLY
 
@@ -182,8 +175,7 @@
   if (-1 == setsockopt(serverSocket_, SOL_SOCKET, SO_LINGER,
                        &ling, sizeof(ling))) {
     int errno_copy = errno;
-    string errStr = "TServerSocket::listen() setsockopt() SO_LINGER " + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TServerSocket::listen() setsockopt() SO_LINGER ", errno_copy);
     close();
     throw TTransportException(TTransportException::NOT_OPEN, "Could not set SO_LINGER", errno_copy);
   }
@@ -192,8 +184,7 @@
   if (-1 == setsockopt(serverSocket_, IPPROTO_TCP, TCP_NODELAY,
                        &one, sizeof(one))) {
     int errno_copy = errno;
-    string errStr = "TServerSocket::listen() setsockopt() TCP_NODELAY " + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TServerSocket::listen() setsockopt() TCP_NODELAY ", errno_copy);
     close();
     throw TTransportException(TTransportException::NOT_OPEN, "Could not set TCP_NODELAY", errno_copy);
   }
@@ -202,15 +193,13 @@
   int flags = fcntl(serverSocket_, F_GETFL, 0);
   if (flags == -1) {
     int errno_copy = errno;
-    string errStr = "TServerSocket::listen() fcntl() F_GETFL " + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TServerSocket::listen() fcntl() F_GETFL ", errno_copy);
     throw TTransportException(TTransportException::NOT_OPEN, "fcntl() failed", errno_copy);
   }
 
   if (-1 == fcntl(serverSocket_, F_SETFL, flags | O_NONBLOCK)) {
     int errno_copy = errno;
-    string errStr = "TServerSocket::listen() fcntl() O_NONBLOCK " + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TServerSocket::listen() fcntl() O_NONBLOCK ", errno_copy);
     throw TTransportException(TTransportException::NOT_OPEN, "fcntl() failed", errno_copy);
   }
 
@@ -241,8 +230,7 @@
   // Call listen
   if (-1 == ::listen(serverSocket_, acceptBacklog_)) {
     int errno_copy = errno;
-    string errStr = "TServerSocket::listen() listen() " + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TServerSocket::listen() listen() ", errno_copy);
     close();
     throw TTransportException(TTransportException::NOT_OPEN, "Could not listen", errno_copy);
   }
@@ -278,17 +266,14 @@
         continue;
       }
       int errno_copy = errno;
-      string errStr = "TServerSocket::acceptImpl() poll() " + TOutput::strerror_s(errno_copy);
-      GlobalOutput(errStr.c_str());
+      GlobalOutput.perror("TServerSocket::acceptImpl() poll() ", errno_copy);
       throw TTransportException(TTransportException::UNKNOWN, "Unknown", errno_copy);
     } else if (ret > 0) {
       // Check for an interrupt signal
       if (intSock2_ >= 0 && (fds[1].revents & POLLIN)) {
         int8_t buf;
         if (-1 == recv(intSock2_, &buf, sizeof(int8_t), 0)) {
-          int errno_copy = errno;
-          string errStr = "TServerSocket::acceptImpl() recv() interrupt " + TOutput::strerror_s(errno_copy);
-          GlobalOutput(errStr.c_str());
+          GlobalOutput.perror("TServerSocket::acceptImpl() recv() interrupt ", errno);
         }
         throw TTransportException(TTransportException::INTERRUPTED);
       }
@@ -311,8 +296,7 @@
 
   if (clientSocket < 0) {
     int errno_copy = errno;
-    string errStr = "TServerSocket::acceptImpl() ::accept() " + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TServerSocket::acceptImpl() ::accept() ", errno_copy);
     throw TTransportException(TTransportException::UNKNOWN, "accept()", errno_copy);
   }
 
@@ -320,15 +304,13 @@
   int flags = fcntl(clientSocket, F_GETFL, 0);
   if (flags == -1) {
     int errno_copy = errno;
-    string errStr = "TServerSocket::acceptImpl() fcntl() F_GETFL " + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TServerSocket::acceptImpl() fcntl() F_GETFL ", errno_copy);
     throw TTransportException(TTransportException::UNKNOWN, "fcntl(F_GETFL)", errno_copy);
   }
 
   if (-1 == fcntl(clientSocket, F_SETFL, flags & ~O_NONBLOCK)) {
     int errno_copy = errno;
-    string errStr = "TServerSocket::acceptImpl() fcntl() F_SETFL ~O_NONBLOCK " + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TServerSocket::acceptImpl() fcntl() F_SETFL ~O_NONBLOCK ", errno_copy);
     throw TTransportException(TTransportException::UNKNOWN, "fcntl(F_SETFL)", errno_copy);
   }
 
@@ -347,9 +329,7 @@
   if (intSock1_ >= 0) {
     int8_t byte = 0;
     if (-1 == send(intSock1_, &byte, sizeof(int8_t), 0)) {
-      int errno_copy = errno;
-      string errStr = "TServerSocket::interrupt() send() " + TOutput::strerror_s(errno_copy);
-      GlobalOutput(errStr.c_str());
+      GlobalOutput.perror("TServerSocket::interrupt() send() ", errno);
     }
   }
 }
diff --git a/lib/cpp/src/transport/TSocket.cpp b/lib/cpp/src/transport/TSocket.cpp
index 34ab1c8..46cd2b4 100644
--- a/lib/cpp/src/transport/TSocket.cpp
+++ b/lib/cpp/src/transport/TSocket.cpp
@@ -96,8 +96,7 @@
   int r = recv(socket_, &buf, 1, MSG_PEEK);
   if (r == -1) {
     int errno_copy = errno;
-    string errStr = "TSocket::peek() recv() " + getSocketInfo() + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TSocket::peek() recv() " + getSocketInfo(), errno_copy);
     throw TTransportException(TTransportException::UNKNOWN, "recv()", errno_copy);
   }
   return (r > 0);
@@ -111,8 +110,7 @@
   socket_ = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
   if (socket_ == -1) {
     int errno_copy = errno;
-    string errStr = "TSocket::open() socket() " + getSocketInfo() + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TSocket::open() socket() " + getSocketInfo(), errno_copy);
     throw TTransportException(TTransportException::NOT_OPEN, "socket()", errno_copy);
   }
 
@@ -137,15 +135,13 @@
   if (connTimeout_ > 0) {
     if (-1 == fcntl(socket_, F_SETFL, flags | O_NONBLOCK)) {
       int errno_copy = errno;
-      string errStr = "TSocket::open() fcntl() " + getSocketInfo() + TOutput::strerror_s(errno_copy);
-      GlobalOutput(errStr.c_str());
+      GlobalOutput.perror("TSocket::open() fcntl() " + getSocketInfo(), errno_copy);
       throw TTransportException(TTransportException::NOT_OPEN, "fcntl() failed", errno_copy);
     }
   } else {
     if (-1 == fcntl(socket_, F_SETFL, flags & ~O_NONBLOCK)) {
       int errno_copy = errno;
-      string errStr = "TSocket::open() fcntl " + getSocketInfo() + TOutput::strerror_s(errno_copy);
-      GlobalOutput(errStr.c_str());
+      GlobalOutput.perror("TSocket::open() fcntl " + getSocketInfo(), errno_copy);
       throw TTransportException(TTransportException::NOT_OPEN, "fcntl() failed", errno_copy);
     }
   }
@@ -160,8 +156,7 @@
 
   if (errno != EINPROGRESS) {
     int errno_copy = errno;
-    string errStr = "TSocket::open() connect() " + getSocketInfo() + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TSocket::open() connect() " + getSocketInfo(), errno_copy);
     throw TTransportException(TTransportException::NOT_OPEN, "connect() failed", errno_copy);
   }
 
@@ -180,16 +175,14 @@
     int ret2 = getsockopt(socket_, SOL_SOCKET, SO_ERROR, (void *)&val, &lon);
     if (ret2 == -1) {
       int errno_copy = errno;
-      string errStr = "TSocket::open() getsockopt() " + getSocketInfo() + TOutput::strerror_s(errno_copy);
-      GlobalOutput(errStr.c_str());
+      GlobalOutput.perror("TSocket::open() getsockopt() " + getSocketInfo(), errno_copy);
       throw TTransportException(TTransportException::NOT_OPEN, "getsockopt()", errno_copy);
     }
     // no errors on socket, go to town
     if (val == 0) {
       goto done;
     }
-    string errStr = "TSocket::open() error on socket (after poll) " + getSocketInfo() + TOutput::strerror_s(val);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TSocket::open() error on socket (after poll) " + getSocketInfo(), val);
     throw TTransportException(TTransportException::NOT_OPEN, "socket open() error", val);
   } else if (ret == 0) {
     // socket timed out
@@ -199,8 +192,7 @@
   } else {
     // error on poll()
     int errno_copy = errno;
-    string errStr = "TSocket::open() poll() " + getSocketInfo() + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    GlobalOutput.perror("TSocket::open() poll() " + getSocketInfo(), errno_copy);
     throw TTransportException(TTransportException::NOT_OPEN, "poll() failed", errno_copy);
   }
 
@@ -323,8 +315,8 @@
     }
 
     // Now it's not a try again case, but a real probblez
-    string errStr = "TSocket::read() recv() " + getSocketInfo() + TOutput::strerror_s(errno);
-    GlobalOutput(errStr.c_str());
+    int errno_copy = errno;  // Copy errno because we're allocating memory.
+    GlobalOutput.perror("TSocket::read() recv() " + getSocketInfo(), errno_copy);
 
     // If we disconnect with no linger time
     if (errno == ECONNRESET) {
@@ -342,7 +334,8 @@
     }
 
     // Some other error, whatevz
-    throw TTransportException(TTransportException::UNKNOWN, "Unknown", errno);
+    errno_copy = errno;
+    throw TTransportException(TTransportException::UNKNOWN, "Unknown", errno_copy);
   }
 
   // The remote host has closed the socket
@@ -377,8 +370,7 @@
     // Fail on a send error
     if (b < 0) {
       int errno_copy = errno;
-      string errStr = "TSocket::write() send() " + getSocketInfo() + TOutput::strerror_s(errno_copy);
-      GlobalOutput(errStr.c_str());
+      GlobalOutput.perror("TSocket::write() send() " + getSocketInfo(), errno_copy);
 
       if (errno == EPIPE || errno == ECONNRESET || errno == ENOTCONN) {
         close();
@@ -422,9 +414,8 @@
   struct linger l = {(lingerOn_ ? 1 : 0), lingerVal_};
   int ret = setsockopt(socket_, SOL_SOCKET, SO_LINGER, &l, sizeof(l));
   if (ret == -1) {
-    int errno_copy = errno;
-    string errStr = "TSocket::setLinger() setsockopt() " + getSocketInfo() + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    int errno_copy = errno;  // Copy errno because we're allocating memory.
+    GlobalOutput.perror("TSocket::setLinger() setsockopt() " + getSocketInfo(), errno_copy);
   }
 }
 
@@ -438,9 +429,8 @@
   int v = noDelay_ ? 1 : 0;
   int ret = setsockopt(socket_, IPPROTO_TCP, TCP_NODELAY, &v, sizeof(v));
   if (ret == -1) {
-    int errno_copy = errno;
-    string errStr = "TSocket::setNoDelay() setsockopt() " + getSocketInfo() + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    int errno_copy = errno;  // Copy errno because we're allocating memory.
+    GlobalOutput.perror("TSocket::setNoDelay() setsockopt() " + getSocketInfo(), errno_copy);
   }
 }
 
@@ -468,9 +458,8 @@
   struct timeval r = recvTimeval_;
   int ret = setsockopt(socket_, SOL_SOCKET, SO_RCVTIMEO, &r, sizeof(r));
   if (ret == -1) {
-    int errno_copy = errno;
-    string errStr = "TSocket::setRecvTimeout() setsockopt() " + getSocketInfo() + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    int errno_copy = errno;  // Copy errno because we're allocating memory.
+    GlobalOutput.perror("TSocket::setRecvTimeout() setsockopt() " + getSocketInfo(), errno_copy);
   }
 }
 
@@ -491,9 +480,8 @@
                       (int)((sendTimeout_%1000)*1000)};
   int ret = setsockopt(socket_, SOL_SOCKET, SO_SNDTIMEO, &s, sizeof(s));
   if (ret == -1) {
-    int errno_copy = errno;
-    string errStr = "TSocket::setSendTimeout() setsockopt() " + getSocketInfo() + TOutput::strerror_s(errno_copy);
-    GlobalOutput(errStr.c_str());
+    int errno_copy = errno;  // Copy errno because we're allocating memory.
+    GlobalOutput.perror("TSocket::setSendTimeout() setsockopt() " + getSocketInfo(), errno_copy);
   }
 }