Port of Qt to VxWorks

This makes Qt work on VxWorks 6.6+ in native (kernel) mode.
 * compiles with the WindRiver GNU toolchain (Linux only)
 * works with QWS (tested with the VNC driver only)
 * tested on PPC hardware and the x86 VxWorks simulator
 * no q3support, no phonon, no webkit
 * no QSharedMemory, no QSystemSemaphore, no QProcess
 * only one QApplication instance (flat address space)
 * filesystem support depends heavily on the quality of the native driver
 * QLibrary is just a dummy to make plugins work at all
 * qmake transparently creates VxWorks munching rules for static ctors
 * made auto-test cope with missing OS features

A special note regarding the Q_FOREACH patch for dcc:
when calling foreach(a,c) with c being a function returning a container,
the compiler would generate 5 references to some labels (.LXXXX), which
are not there (so the linker complains in the end).
Seems like dcc doesn't really like the 'true ? 0 : <function call to get type>'
statement

Reviewed-By: Harald Fernengel

6 files changed, 61 insertions, 15 deletions

diff --git a/src/network/kernel/qhostinfo_unix.cpp b/src/network/kernel/qhostinfo_unix.cpp
index fef488b..64e9e29 100644
--- a/src/network/kernel/qhostinfo_unix.cpp
+++ b/src/network/kernel/qhostinfo_unix.cpp
@@ -57,7 +57,11 @@ static const int RESOLVER_TIMEOUT = 2000;
 #include <sys/types.h>
 #include <netdb.h>
 #include <arpa/inet.h>
-#include <resolv.h>
+#if defined(Q_OS_VXWORKS)
+#  include <hostLib.h>
+#else
+#  include <resolv.h>
+#endif
 
 #if defined (QT_NO_GETADDRINFO)
 #include <qmutex.h>
@@ -275,10 +279,12 @@ QHostInfo QHostInfoAgent::fromName(const QString &hostName)
             results.setError(QHostInfo::UnknownError);
             results.setErrorString(tr("Unknown address type"));
         }
+#if !defined(Q_OS_VXWORKS)
     } else if (h_errno == HOST_NOT_FOUND || h_errno == NO_DATA
                || h_errno == NO_ADDRESS) {
         results.setError(QHostInfo::HostNotFound);
         results.setErrorString(tr("Host not found"));
+#endif
     } else {
         results.setError(QHostInfo::UnknownError);
         results.setErrorString(tr("Unknown error"));
@@ -315,6 +321,7 @@ QString QHostInfo::localHostName()
 
 QString QHostInfo::localDomainName()
 {
+#if !defined(Q_OS_VXWORKS)
     resolveLibrary();
     if (local_res_ninit) {
         // using thread-safe version
@@ -344,7 +351,7 @@ QString QHostInfo::localDomainName()
             domainName = QUrl::fromAce(local_res->dnsrch[0]);
         return domainName;
     }
-
+#endif
     // nothing worked, try doing it by ourselves:
     QFile resolvconf;
 #if defined(_PATH_RESCONF)
diff --git a/src/network/socket/qlocalserver_unix.cpp b/src/network/socket/qlocalserver_unix.cpp
index c2e05cd..3df6b6a 100644
--- a/src/network/socket/qlocalserver_unix.cpp
+++ b/src/network/socket/qlocalserver_unix.cpp
@@ -54,6 +54,10 @@
 #include <qdir.h>
 #include <qdatetime.h>
 
+#ifdef Q_OS_VXWORKS
+#  include <selectLib.h>
+#endif
+
 QT_BEGIN_NAMESPACE
 
 void QLocalServerPrivate::init()
diff --git a/src/network/socket/qlocalsocket_unix.cpp b/src/network/socket/qlocalsocket_unix.cpp
index d038794..08d94ef 100644
--- a/src/network/socket/qlocalsocket_unix.cpp
+++ b/src/network/socket/qlocalsocket_unix.cpp
@@ -56,6 +56,10 @@
 #include <qdir.h>
 #include <qdebug.h>
 
+#ifdef Q_OS_VXWORKS
+#  include <selectLib.h>
+#endif
+
 #define QT_CONNECT_TIMEOUT 30000
 
 QT_BEGIN_NAMESPACE
diff --git a/src/network/socket/qnativesocketengine_p.h b/src/network/socket/qnativesocketengine_p.h
index a9479d3..24dc344 100644
--- a/src/network/socket/qnativesocketengine_p.h
+++ b/src/network/socket/qnativesocketengine_p.h
@@ -56,9 +56,9 @@
 #include "QtNetwork/qhostaddress.h"
 #include "private/qabstractsocketengine_p.h"
 #ifndef Q_OS_WIN
-# include "qplatformdefs.h"
+#  include "qplatformdefs.h"
 #else
-# include <winsock2.h>
+#  include <winsock2.h>
 #endif
 
 QT_BEGIN_NAMESPACE
diff --git a/src/network/socket/qnativesocketengine_unix.cpp b/src/network/socket/qnativesocketengine_unix.cpp
index b4b673a..6f9ee1a 100644
--- a/src/network/socket/qnativesocketengine_unix.cpp
+++ b/src/network/socket/qnativesocketengine_unix.cpp
@@ -237,7 +237,7 @@ int QNativeSocketEnginePrivate::option(QNativeSocketEngine::SocketOption opt) co
 
     int v = -1;
     QT_SOCKOPTLEN_T len = sizeof(v);
-    if (getsockopt(socketDescriptor, level, n, (char *) &v, &len) != -1)
+    if (::getsockopt(socketDescriptor, level, n, (char *) &v, &len) != -1)
         return v;
     return -1;
 }
@@ -267,6 +267,7 @@ bool QNativeSocketEnginePrivate::setOption(QNativeSocketEngine::SocketOption opt
         break;
     case QNativeSocketEngine::NonBlockingSocketOption: {
         // Make the socket nonblocking.
+#if !defined(Q_OS_VXWORKS)
         int flags = ::fcntl(socketDescriptor, F_GETFL, 0);
         if (flags == -1) {
 #ifdef QNATIVESOCKETENGINE_DEBUG
@@ -280,7 +281,15 @@ bool QNativeSocketEnginePrivate::setOption(QNativeSocketEngine::SocketOption opt
 #endif
             return false;
         }
-
+#else // Q_OS_VXWORKS
+        int onoff = 1;
+        if (qt_safe_ioctl(socketDescriptor, FIONBIO, &onoff) < 0) {
+#ifdef QNATIVESOCKETENGINE_DEBUG
+            perror("QNativeSocketEnginePrivate::setOption(): ioctl(FIONBIO, 1) failed");
+#endif
+            return false;
+        }
+#endif // Q_OS_VXWORKS
         return true;
     }
     case QNativeSocketEngine::AddressReusable:
@@ -652,11 +661,8 @@ qint64 QNativeSocketEnginePrivate::nativeSendDatagram(const char *data, qint64 l
     // ignore the SIGPIPE signal
     qt_ignore_sigpipe();
 
-    ssize_t sentBytes;
-    do {
-        sentBytes = qt_safe_sendto(socketDescriptor, data, len,
-                                   0, sockAddrPtr, sockAddrSize);
-    } while (sentBytes == -1 && errno == EINTR);
+    ssize_t sentBytes = qt_safe_sendto(socketDescriptor, data, len,
+                                       0, sockAddrPtr, sockAddrSize);
 
     if (sentBytes < 0) {
         switch (errno) {
@@ -722,7 +728,7 @@ bool QNativeSocketEnginePrivate::fetchConnectionParameters()
     // Determine the socket type (UDP/TCP)
     int value = 0;
     QT_SOCKOPTLEN_T valueSize = sizeof(int);
-    if (::getsockopt(socketDescriptor, SOL_SOCKET, SO_TYPE, &value, &valueSize) == 0) {
+    if (::getsockopt(socketDescriptor, SOL_SOCKET, SO_TYPE, (char *) &value, &valueSize) == 0) {
         if (value == SOCK_STREAM)
             socketType = QAbstractSocket::TcpSocket;
         else if (value == SOCK_DGRAM)
@@ -767,7 +773,7 @@ qint64 QNativeSocketEnginePrivate::nativeWrite(const char *data, qint64 len)
     // of an interrupting signal.
     ssize_t writtenBytes;
     do {
-        writtenBytes = ::write(socketDescriptor, data, len);
+        writtenBytes = QT_WRITE(socketDescriptor, data, len);
     } while (writtenBytes < 0 && errno == EINTR);
 
     if (writtenBytes < 0) {
@@ -828,6 +834,9 @@ qint64 QNativeSocketEnginePrivate::nativeRead(char *data, qint64 maxSize)
             setError(QAbstractSocket::NetworkError, ReadErrorString);
             break;
         case ECONNRESET:
+#if defined(Q_OS_VXWORKS)
+        case ESHUTDOWN:
+#endif
             r = 0;
             break;
         default:
diff --git a/src/network/socket/qnet_unix_p.h b/src/network/socket/qnet_unix_p.h
index 03ed3b4..f38c2fc 100644
--- a/src/network/socket/qnet_unix_p.h
+++ b/src/network/socket/qnet_unix_p.h
@@ -59,11 +59,18 @@
 #include <sys/socket.h>
 #include <netinet/in.h>
 
+#if defined(Q_OS_VXWORKS)
+#  include <sockLib.h>
+#endif
+
 // for inet_addr
 #include <netdb.h>
 #include <arpa/inet.h>
-#include <resolv.h>
-
+#if defined(Q_OS_VXWORKS)
+#  include <hostLib.h>
+#else
+#  include <resolv.h>
+#endif
 
 QT_BEGIN_NAMESPACE
 
@@ -155,17 +162,28 @@ static inline int qt_safe_connect(int sockfd, const struct sockaddr *addr, QT_SO
 # undef listen
 #endif
 
+// VxWorks' headers specify 'int' instead of '...' for the 3rd ioctl() parameter.
 template <typename T>
 static inline int qt_safe_ioctl(int sockfd, int request, T arg)
 {
+#ifdef Q_OS_VXWORKS
+    return ::ioctl(sockfd, request, (int) arg);
+#else
     return ::ioctl(sockfd, request, arg);
+#endif
 }
 
+// VxWorks' headers do not specify any const modifiers
 static inline in_addr_t qt_safe_inet_addr(const char *cp)
 {
+#ifdef Q_OS_VXWORKS
+    return ::inet_addr((char *) cp);
+#else
     return ::inet_addr(cp);
+#endif
 }
 
+// VxWorks' headers do not specify any const modifiers
 static inline int qt_safe_sendto(int sockfd, const void *buf, size_t len, int flags, const struct sockaddr *to, QT_SOCKLEN_T tolen)
 {
 #ifdef MSG_NOSIGNAL
@@ -173,7 +191,11 @@ static inline int qt_safe_sendto(int sockfd, const void *buf, size_t len, int fl
 #endif
 
     register int ret;
+#ifdef Q_OS_VXWORKS
+    EINTR_LOOP(ret, ::sendto(sockfd, (char *) buf, len, flags, (struct sockaddr *) to, tolen));
+#else
     EINTR_LOOP(ret, ::sendto(sockfd, buf, len, flags, to, tolen));
+#endif
     return ret;
 }