X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a12698abb72c090dba6907506781ae979b0ef606..d2e66707deb10dea6f92e3e4092f8a43ef942a5d:/src/unix/epolldispatcher.cpp

diff --git a/src/unix/epolldispatcher.cpp b/src/unix/epolldispatcher.cpp
index b5b7a8cce6..47f4dd4f56 100644
--- a/src/unix/epolldispatcher.cpp
+++ b/src/unix/epolldispatcher.cpp
@@ -1,11 +1,11 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        src/common/epolldispatcher.cpp
+// Name:        src/unix/epolldispatcher.cpp
 // Purpose:     implements dispatcher for epoll_wait() call
 // Author:      Lukasz Michalski
 // Created:     April 2007
 // RCS-ID:      $Id$
 // Copyright:   (c) 2007 Lukasz Michalski
-// License:     wxWindows licence
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
@@ -42,29 +42,31 @@
 
 // helper: return EPOLLxxx mask corresponding to the given flags (and also log
 // debugging messages about it)
-static uint32_t GetEpollMask(int flags, int WXUNUSED_UNLESS_DEBUG(fd))
+static uint32_t GetEpollMask(int flags, int fd)
 {
+    wxUnusedVar(fd); // unused if wxLogTrace() disabled
+
     uint32_t ep = 0;
 
     if ( flags & wxFDIO_INPUT )
     {
         ep |= EPOLLIN;
         wxLogTrace(wxEpollDispatcher_Trace,
-                   _T("Registered fd %d for input events"), fd);
+                   wxT("Registered fd %d for input events"), fd);
     }
 
     if ( flags & wxFDIO_OUTPUT )
     {
         ep |= EPOLLOUT;
         wxLogTrace(wxEpollDispatcher_Trace,
-                   _T("Registered fd %d for output events"), fd);
+                   wxT("Registered fd %d for output events"), fd);
     }
 
     if ( flags & wxFDIO_EXCEPTION )
     {
         ep |= EPOLLERR | EPOLLHUP;
         wxLogTrace(wxEpollDispatcher_Trace,
-                   _T("Registered fd %d for exceptional events"), fd);
+                   wxT("Registered fd %d for exceptional events"), fd);
     }
 
     return ep;
@@ -84,13 +86,13 @@ wxEpollDispatcher *wxEpollDispatcher::Create()
         return NULL;
     }
     wxLogTrace(wxEpollDispatcher_Trace,
-                   _T("Epoll fd %d created"), epollDescriptor);
+                   wxT("Epoll fd %d created"), epollDescriptor);
     return new wxEpollDispatcher(epollDescriptor);
 }
 
 wxEpollDispatcher::wxEpollDispatcher(int epollDescriptor)
 {
-    wxASSERT_MSG( epollDescriptor != -1, _T("invalid descriptor") );
+    wxASSERT_MSG( epollDescriptor != -1, wxT("invalid descriptor") );
 
     m_epollDescriptor = epollDescriptor;
 }
@@ -118,7 +120,7 @@ bool wxEpollDispatcher::RegisterFD(int fd, wxFDIOHandler* handler, int flags)
         return false;
     }
     wxLogTrace(wxEpollDispatcher_Trace,
-               _T("Added fd %d (handler %p) to epoll %d"), fd, handler, m_epollDescriptor);
+               wxT("Added fd %d (handler %p) to epoll %d"), fd, handler, m_epollDescriptor);
 
     return true;
 }
@@ -139,7 +141,7 @@ bool wxEpollDispatcher::ModifyFD(int fd, wxFDIOHandler* handler, int flags)
     }
 
     wxLogTrace(wxEpollDispatcher_Trace,
-                _T("Modified fd %d (handler: %p) on epoll %d"), fd, handler, m_epollDescriptor);
+                wxT("Modified fd %d (handler: %p) on epoll %d"), fd, handler, m_epollDescriptor);
     return true;
 }
 
@@ -155,7 +157,7 @@ bool wxEpollDispatcher::UnregisterFD(int fd)
                       fd, m_epollDescriptor);
     }
     wxLogTrace(wxEpollDispatcher_Trace,
-                _T("removed fd %d from %d"), fd, m_epollDescriptor);
+                wxT("removed fd %d from %d"), fd, m_epollDescriptor);
     return true;
 }
 
@@ -194,7 +196,11 @@ wxEpollDispatcher::DoPoll(epoll_event *events, int numEvents, int timeout) const
 bool wxEpollDispatcher::HasPending() const
 {
     epoll_event event;
-    return DoPoll(&event, 1, 0) == 1;
+
+    // NB: it's not really clear if epoll_wait() can return a number greater
+    //     than the number of events passed to it but just in case it can, use
+    //     >= instead of == here, see #10397
+    return DoPoll(&event, 1, 0) >= 1;
 }
 
 int wxEpollDispatcher::Dispatch(int timeout)
@@ -216,7 +222,7 @@ int wxEpollDispatcher::Dispatch(int timeout)
         wxFDIOHandler * const handler = (wxFDIOHandler *)(p->data.ptr);
         if ( !handler )
         {
-            wxFAIL_MSG( _T("NULL handler in epoll_event?") );
+            wxFAIL_MSG( wxT("NULL handler in epoll_event?") );
             continue;
         }