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authorRobert Griebl <rgriebl@trolltech.com>2008-07-30 21:14:24 (GMT)
committerRobert Griebl <rgriebl@trolltech.com>2009-07-29 08:50:20 (GMT)
commitd7b688870aead912690188b324d370b920a7a600 (patch)
treeaac6c19d222ca3bad65cfbb850483a647013c67a /src/corelib/thread
parente5262a0c29c743f2afd4ba249e8adff984c1ca83 (diff)
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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
Diffstat (limited to 'src/corelib/thread')
-rw-r--r--src/corelib/thread/qmutex_unix.cpp4
-rw-r--r--src/corelib/thread/qthread_unix.cpp41
2 files changed, 43 insertions, 2 deletions
diff --git a/src/corelib/thread/qmutex_unix.cpp b/src/corelib/thread/qmutex_unix.cpp
index 43ba668..02c7c6f 100644
--- a/src/corelib/thread/qmutex_unix.cpp
+++ b/src/corelib/thread/qmutex_unix.cpp
@@ -49,6 +49,10 @@
#include <errno.h>
+#if defined(Q_OS_VXWORKS) && defined(wakeup)
+#undef wakeup
+#endif
+
QT_BEGIN_NAMESPACE
static void report_error(int code, const char *where, const char *what)
diff --git a/src/corelib/thread/qthread_unix.cpp b/src/corelib/thread/qthread_unix.cpp
index 19b5104..efe37ad 100644
--- a/src/corelib/thread/qthread_unix.cpp
+++ b/src/corelib/thread/qthread_unix.cpp
@@ -61,6 +61,13 @@
#ifdef Q_OS_BSD4
#include <sys/sysctl.h>
#endif
+#ifdef Q_OS_VXWORKS
+# if (_WRS_VXWORKS_MAJOR > 6) || ((_WRS_VXWORKS_MAJOR == 6) && (_WRS_VXWORKS_MINOR >= 6))
+# include <vxCpuLib.h>
+# include <cpuset.h>
+# define QT_VXWORKS_HAS_CPUSET
+# endif
+#endif
#if defined(Q_OS_MAC)
# ifdef qDebug
@@ -85,6 +92,13 @@ static pthread_key_t current_thread_data_key;
static void destroy_current_thread_data(void *p)
{
+#if defined(Q_OS_VXWORKS)
+ // Calling setspecific(..., 0) sets the value to 0 for ALL threads.
+ // The 'set to 1' workaround adds a bit of an overhead though,
+ // since this function is called twice now.
+ if (p == (void *)1)
+ return;
+#endif
// POSIX says the value in our key is set to zero before calling
// this destructor function, so we need to set it back to the
// right value...
@@ -93,7 +107,12 @@ static void destroy_current_thread_data(void *p)
// ... but we must reset it to zero before returning so we aren't
// called again (POSIX allows implementations to call destructor
// functions repeatedly until all values are zero)
- pthread_setspecific(current_thread_data_key, 0);
+ pthread_setspecific(current_thread_data_key,
+#if defined(Q_OS_VXWORKS)
+ (void *)1);
+#else
+ 0);
+#endif
}
static void create_current_thread_data_key()
@@ -267,7 +286,25 @@ int QThread::idealThreadCount()
// IRIX
cores = (int)sysconf(_SC_NPROC_ONLN);
#elif defined(Q_OS_INTEGRITY)
- // ### TODO - how to get the amound of CPUs on INTEGRITY?
+ // as of aug 2008 Integrity only supports one single core CPU
+ cores = 1;
+#elif defined(Q_OS_VXWORKS)
+ // VxWorks
+# if defined(QT_VXWORKS_HAS_CPUSET)
+ cpuset_t cpus = vxCpuEnabledGet();
+ cores = 0;
+
+ // 128 cores should be enough for everyone ;)
+ for (int i = 0; i < 128 && !CPUSET_ISZERO(cpus); ++i) {
+ if (CPUSET_ISSET(cpus, i)) {
+ CPUSET_CLR(cpus, i);
+ cores++;
+ }
+ }
+# else
+ // as of aug 2008 VxWorks < 6.6 only supports one single core CPU
+ cores = 1;
+# endif
#else
// the rest: Linux, Solaris, AIX, Tru64
cores = (int)sysconf(_SC_NPROCESSORS_ONLN);