X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/accb325754496ee949369884bd1bc2c1263c89ff..b09bda689c8525886d217a9b171b354391cd6d78:/src/unix/utilsunx.cpp

diff --git a/src/unix/utilsunx.cpp b/src/unix/utilsunx.cpp
index deeaa836ba..1f09b3d448 100644
--- a/src/unix/utilsunx.cpp
+++ b/src/unix/utilsunx.cpp
@@ -28,6 +28,10 @@
 
 #include "wx/stream.h"
 
+#ifdef HAVE_STATFS
+    #include <sys/vfs.h>
+#endif // HAVE_STATFS
+
 #if wxUSE_GUI
     #include "wx/unix/execute.h"
 #endif
@@ -135,9 +139,39 @@ void wxUsleep(unsigned long milliseconds)
 // process management
 // ----------------------------------------------------------------------------
 
-int wxKill(long pid, wxSignal sig)
+int wxKill(long pid, wxSignal sig, wxKillError *rc)
 {
-    return kill((pid_t)pid, (int)sig);
+    int err = kill((pid_t)pid, (int)sig);
+    if ( rc )
+    {
+        switch ( err )
+        {
+            case 0:
+                *rc = wxKILL_OK;
+                break;
+
+            case EINVAL:
+                *rc = wxKILL_BAD_SIGNAL;
+                break;
+
+            case EPERM:
+                *rc = wxKILL_ACCESS_DENIED;
+                break;
+
+            case ESRCH:
+                *rc = wxKILL_NO_PROCESS;
+                break;
+
+            default:
+                // this goes against Unix98 docs so log it
+                wxLogDebug(_T("unexpected kill(2) return value %d"), err);
+
+                // something else...
+                *rc = wxKILL_ERROR;
+        }
+    }
+
+    return err;
 }
 
 #define WXEXECUTE_NARGS   127
@@ -264,17 +298,33 @@ void wxHandleProcessTermination(wxEndProcessData *proc_data)
     }
     while ( rc == -1 && errno == EINTR );
 
-
-    if( rc == -1 || ! (WIFEXITED(status) || WIFSIGNALED(status)) )
+    if (rc == -1)
+    {
+        // JACS: this could happen if the process was terminated and waitpid called,
+        // so commenting out for now.
+        //wxLogSysError(_("Waiting for subprocess termination failed (return code = -1)"));
+    }
+    else if (! (WIFEXITED(status)))
     {
-       wxLogSysError(_("Waiting for subprocess termination failed"));
+        wxLogSysError(_("Waiting for subprocess termination failed (WIFEXITED returned zero)"));
+	
        /* AFAIK, this can only happen if something went wrong within
           wxGTK, i.e. due to a race condition or some serious bug.
           After having fixed the order of statements in
           GTK_EndProcessDetector(). (KB)
        */
     }
-    else
+    else if (WIFSIGNALED(status))
+    {
+        wxLogSysError(_("Waiting for subprocess termination failed (signal not caught)"));
+	
+       /* AFAIK, this can only happen if something went wrong within
+          wxGTK, i.e. due to a race condition or some serious bug.
+          After having fixed the order of statements in
+          GTK_EndProcessDetector(). (KB)
+       */
+    }
+    // else
     {
         // notify user about termination if required
         if (proc_data->process)
@@ -303,6 +353,8 @@ void wxHandleProcessTermination(wxEndProcessData *proc_data)
 // wxStream classes to support IO redirection in wxExecute
 // ----------------------------------------------------------------------------
 
+#if wxUSE_STREAMS
+
 class wxProcessFileInputStream : public wxInputStream
 {
 public:
@@ -399,6 +451,8 @@ size_t wxProcessFileOutputStream::OnSysWrite(const void *buffer, size_t bufsize)
     return ret;
 }
 
+#endif // wxUSE_STREAMS
+
 long wxExecute(wxChar **argv,
                bool sync,
                wxProcess *process)
@@ -552,6 +606,13 @@ long wxExecute(wxChar **argv,
 
         // there is no return after successful exec()
         _exit(-1);
+
+        // some compilers complain about missing return - of course, they
+        // should know that exit() doesn't return but what else can we do if
+        // they don't?
+#if defined(__VMS) || defined(__INTEL_COMPILER)
+        return 0;
+#endif
     }
     else // we're in parent
     {
@@ -560,19 +621,21 @@ long wxExecute(wxChar **argv,
         // pipe initialization: construction of the wxStreams
         if ( process && process->IsRedirected() )
         {
+#if wxUSE_STREAMS
             // These two streams are relative to this process.
             wxOutputStream *outStream = new wxProcessFileOutputStream(pipeIn[1]);
             wxInputStream *inStream = new wxProcessFileInputStream(pipeOut[0]);
             wxInputStream *errStream = new wxProcessFileInputStream(pipeErr[0]);
 
+            process->SetPipeStreams(inStream, outStream, errStream);
+#endif // wxUSE_STREAMS
+
             close(pipeIn[0]); // close reading side
             close(pipeOut[1]); // close writing side
             close(pipeErr[1]); // close writing side
-
-            process->SetPipeStreams(inStream, outStream, errStream);
         }
 
-#if wxUSE_GUI
+#if wxUSE_GUI && !defined(__WXMICROWIN__)
         wxEndProcessData *data = new wxEndProcessData;
 
         if ( sync )
@@ -625,13 +688,6 @@ long wxExecute(wxChar **argv,
         return exitcode;
 #endif // wxUSE_GUI
     }
-#ifdef __VMS
-   // VMS does not recognise exit as a return and complains about
-   // a missing return
-   // I think VMS is wrong in this
-   //     JJ
-   return 0;
-#endif
 }
 
 #undef ERROR_RETURN_CODE
@@ -873,6 +929,34 @@ long wxGetFreeMemory()
     return -1;
 }
 
+bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
+{
+#ifdef HAVE_STATFS
+
+    struct statfs fs;
+    if ( statfs(path, &fs) != 0 )
+    {
+        wxLogSysError("Failed to get file system statistics");
+
+        return FALSE;
+    }
+
+    if ( pTotal )
+    {
+        *pTotal = wxLongLong(fs.f_blocks) * fs.f_bsize;
+    }
+
+    if ( pFree )
+    {
+        *pFree = wxLongLong(fs.f_bavail) * fs.f_bsize;
+    }
+
+    return TRUE;
+#endif // HAVE_STATFS
+
+    return FALSE;
+}
+
 // ----------------------------------------------------------------------------
 // env vars
 // ----------------------------------------------------------------------------