compilation fix for non-threaded compilation (threads are still broken

[wxWidgets.git] / src / unix / threadpsx.cpp

diff --git a/src/unix/threadpsx.cpp b/src/unix/threadpsx.cpp
index fad73a2df9fb83bd6f923e0707dd7adf4e12d270..5bbb54a77826457f2ea1dc0bfbd0491a617e2add 100644 (file)
--- a/src/unix/threadpsx.cpp
+++ b/src/unix/threadpsx.cpp
@@ -45,6 +45,15 @@
     #include <sched.h>
 #endif
 
+#ifdef HAVE_THR_SETCONCURRENCY
+    #include <thread.h>
+#endif
+
+// we use wxFFile under Linux in GetCPUCount()
+#ifdef __LINUX__
+    #include "wx/ffile.h"
+#endif
+
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
@@ -716,7 +725,7 @@ void wxThreadInternal::Wait()
         wxMutexGuiLeave();
 
     bool isDetached = m_isDetached;
-    long id = GetId();
+    long id = (long)GetId();
     wxLogTrace(TRACE_THREADS, _T("Starting to wait for thread %ld to exit."),
                id);
 
@@ -740,7 +749,7 @@ void wxThreadInternal::Wait()
             //       we're cancelled inside pthread_join(), things will almost
             //       certainly break - but if we disable the cancellation, we
             //       might deadlock
-            if ( pthread_join(id, &m_exitcode) != 0 )
+            if ( pthread_join((pthread_t)id, &m_exitcode) != 0 )
             {
                 wxLogError(_("Failed to join a thread, potential memory leak "
                              "detected - please restart the program"));
@@ -834,6 +843,63 @@ void wxThread::Sleep(unsigned long milliseconds)
     wxUsleep(milliseconds);
 }
 
+int wxThread::GetCPUCount()
+{
+#if defined(__LINUX__)
+    // read from proc (can't use wxTextFile here because it's a special file:
+    // it has 0 size but still can be read from)
+    wxLogNull nolog;
+
+    wxFFile file(_T("/proc/cpuinfo"));
+    if ( file.IsOpened() )
+    {
+        // slurp the whole file
+        wxString s;
+        if ( file.ReadAll(&s) )
+        {
+            // (ab)use Replace() to find the number of "processor" strings
+            size_t count = s.Replace(_T("processor"), _T(""));
+            if ( count > 0 )
+            {
+                return count;
+            }
+
+            wxLogDebug(_T("failed to parse /proc/cpuinfo"));
+        }
+        else
+        {
+            wxLogDebug(_T("failed to read /proc/cpuinfo"));
+        }
+    }
+#elif defined(_SC_NPROCESSORS_ONLN)
+    // this works for Solaris
+    int rc = sysconf(_SC_NPROCESSORS_ONLN);
+    if ( rc != -1 )
+    {
+        return rc;
+    }
+#endif // different ways to get number of CPUs
+
+    // unknown
+    return -1;
+}
+
+bool wxThread::SetConcurrency(size_t level)
+{
+#ifdef HAVE_THR_SETCONCURRENCY
+    int rc = thr_setconcurrency(level);
+    if ( rc != 0 )
+    {
+        wxLogSysError(rc, _T("thr_setconcurrency() failed"));
+    }
+
+    return rc == 0;
+#else // !HAVE_THR_SETCONCURRENCY
+    // ok only for the default value
+    return level == 0;
+#endif // HAVE_THR_SETCONCURRENCY/!HAVE_THR_SETCONCURRENCY
+}
+
 // -----------------------------------------------------------------------------
 // creating thread
 // -----------------------------------------------------------------------------
@@ -867,8 +933,18 @@ wxThreadError wxThread::Create()
         wxLogError(_("Cannot retrieve thread scheduling policy."));
     }
 
-    int min_prio = sched_get_priority_min(policy),
-        max_prio = sched_get_priority_max(policy),
+#ifdef __VMS__
+   /* the pthread.h contains too many spaces. This is a work-around */
+# undef sched_get_priority_max
+#undef sched_get_priority_min
+#define sched_get_priority_max(_pol_) \
+     (_pol_ == SCHED_OTHER ? PRI_FG_MAX_NP : PRI_FIFO_MAX)
+#define sched_get_priority_min(_pol_) \
+     (_pol_ == SCHED_OTHER ? PRI_FG_MIN_NP : PRI_FIFO_MIN)
+#endif
+   
+    int max_prio = sched_get_priority_max(policy),
+        min_prio = sched_get_priority_min(policy),
         prio = m_internal->GetPriority();
 
     if ( min_prio == -1 || max_prio == -1 )