X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9e03e02d0ca493bc65f083600f1427d2ac8028ff..7f47faf4f2fb142f715e3e47ed6f25a002d7a5d2:/src/unix/gsocket.cpp

diff --git a/src/unix/gsocket.cpp b/src/unix/gsocket.cpp
index ab459eb018..550b3d51b3 100644
--- a/src/unix/gsocket.cpp
+++ b/src/unix/gsocket.cpp
@@ -12,10 +12,6 @@
  * -------------------------------------------------------------------------
  */
 
-/*
- * PLEASE don't put C++ comments here - this is a C source file.
- */
-
 #if defined(__WATCOMC__)
 #include "wx/wxprec.h"
 #include <errno.h>
@@ -23,13 +19,10 @@
 #endif
 
 #ifndef __GSOCKET_STANDALONE__
-#include "wx/setup.h"
+#include "wx/defs.h"
 #endif
 
 #if defined(__VISAGECPP__)
-/* Seems to be needed by Visual Age C++, though I don't see how it manages
-   to not break on including a C++ header into a plain C source file      */
-#include "wx/defs.h"
 #define BSD_SELECT /* use Berkley Sockets select */
 #endif
 
@@ -162,12 +155,11 @@ int _System soclose(int);
     #define UNMASK_SIGNAL() }
 
 #else
+    extern "C" { typedef void (*wxSigHandler)(int); }
 
     #define MASK_SIGNAL()                       \
     {                                           \
-        void (*old_handler)(int);               \
-                                                \
-        old_handler = signal(SIGPIPE, SIG_IGN);
+        wxSigHandler old_handler = signal(SIGPIPE, SIG_IGN);
 
     #define UNMASK_SIGNAL()                     \
         signal(SIGPIPE, old_handler);           \
@@ -187,6 +179,7 @@ int _System soclose(int);
 
 #ifndef __GSOCKET_STANDALONE__
 #  include "wx/unix/gsockunx.h"
+#  include "wx/unix/private.h"
 #  include "wx/gsocket.h"
 #else
 #  include "gsockunx.h"
@@ -720,9 +713,15 @@ GSocketError GSocket::Connect(GSocketStream stream)
   /* Connect it to the peer address, with a timeout (see below) */
   ret = connect(m_fd, m_peer->m_addr, m_peer->m_len);
 
-  /* We only call Enable_Events if we know e aren't shutting down the socket */
+  /* We only call Enable_Events if we know we aren't shutting down the socket.
+   * NB: Enable_Events needs to be called whether the socket is blocking or
+   * non-blocking, it just shouldn't be called prior to knowing there is a
+   * connection _if_ blocking sockets are being used.
+   * If connect above returns 0, we are already connected and need to make the
+   * call to Enable_Events now.
+   */
 
-  if (m_non_blocking)
+  if (m_non_blocking || ret == 0)
   {
     gs_gui_functions->Enable_Events(this);
   }
@@ -867,23 +866,25 @@ int GSocket::Read(char *buffer, int size)
   Disable(GSOCK_INPUT);
 
   /* If the socket is blocking, wait for data (with a timeout) */
-  if (Input_Timeout() == GSOCK_TIMEDOUT)
-    /* We no longer return here immediately, otherwise socket events would not be re-enabled! */
+  if (Input_Timeout() == GSOCK_TIMEDOUT) {
+    m_error = GSOCK_TIMEDOUT;
+    /* Don't return here immediately, otherwise socket events would not be
+     * re-enabled! */
     ret = -1;
+  }
   else {
     /* Read the data */
     if (m_stream)
       ret = Recv_Stream(buffer, size);
     else
       ret = Recv_Dgram(buffer, size);
-  }
 
-  if (ret == -1)
-  {
-    if ((errno == EWOULDBLOCK) || (errno == EAGAIN))
-      m_error = GSOCK_WOULDBLOCK;
-    else
-      m_error = GSOCK_IOERR;
+    if (ret == -1) {
+      if ((errno == EWOULDBLOCK) || (errno == EAGAIN))
+        m_error = GSOCK_WOULDBLOCK;
+      else
+        m_error = GSOCK_IOERR;
+    }
   }
 
   /* Enable events again now that we are done processing */
@@ -969,17 +970,20 @@ GSocketEventFlags GSocket::Select(GSocketEventFlags flags)
 
     assert(this);
 
+    if (m_fd == -1)
+        return (GSOCK_LOST_FLAG & flags);
+
     /* Do not use a static struct, Linux can garble it */
     tv.tv_sec = m_timeout / 1000;
     tv.tv_usec = (m_timeout % 1000) * 1000;
 
-    FD_ZERO(&readfds);
-    FD_ZERO(&writefds);
-    FD_ZERO(&exceptfds);
-    FD_SET(m_fd, &readfds);
+    wxFD_ZERO(&readfds);
+    wxFD_ZERO(&writefds);
+    wxFD_ZERO(&exceptfds);
+    wxFD_SET(m_fd, &readfds);
     if (flags & GSOCK_OUTPUT_FLAG || flags & GSOCK_CONNECTION_FLAG)
-      FD_SET(m_fd, &writefds);
-    FD_SET(m_fd, &exceptfds);
+      wxFD_SET(m_fd, &writefds);
+    wxFD_SET(m_fd, &exceptfds);
 
     /* Check 'sticky' CONNECTION flag first */
     result |= (GSOCK_CONNECTION_FLAG & m_detected);
@@ -1002,7 +1006,7 @@ GSocketEventFlags GSocket::Select(GSocketEventFlags flags)
     }
 
     /* Check for readability */
-    if (FD_ISSET(m_fd, &readfds))
+    if (wxFD_ISSET(m_fd, &readfds))
     {
       char c;
 
@@ -1031,7 +1035,7 @@ GSocketEventFlags GSocket::Select(GSocketEventFlags flags)
     }
 
     /* Check for writability */
-    if (FD_ISSET(m_fd, &writefds))
+    if (wxFD_ISSET(m_fd, &writefds))
     {
       if (m_establishing && !m_server)
       {
@@ -1062,7 +1066,7 @@ GSocketEventFlags GSocket::Select(GSocketEventFlags flags)
     }
 
     /* Check for exceptions and errors (is this useful in Unices?) */
-    if (FD_ISSET(m_fd, &exceptfds))
+    if (wxFD_ISSET(m_fd, &exceptfds))
     {
       m_establishing = false;
       m_detected = GSOCK_LOST_FLAG;
@@ -1243,8 +1247,8 @@ GSocketError GSocket::Input_Timeout()
 
   if (!m_non_blocking)
   {
-    FD_ZERO(&readfds);
-    FD_SET(m_fd, &readfds);
+    wxFD_ZERO(&readfds);
+    wxFD_SET(m_fd, &readfds);
     ret = select(m_fd + 1, &readfds, NULL, NULL, &tv);
     if (ret == 0)
     {
@@ -1284,8 +1288,8 @@ GSocketError GSocket::Output_Timeout()
 
   if (!m_non_blocking)
   {
-    FD_ZERO(&writefds);
-    FD_SET(m_fd, &writefds);
+    wxFD_ZERO(&writefds);
+    wxFD_SET(m_fd, &writefds);
     ret = select(m_fd + 1, NULL, &writefds, NULL, &tv);
     if (ret == 0)
     {
@@ -1303,7 +1307,7 @@ GSocketError GSocket::Output_Timeout()
       m_error = GSOCK_TIMEDOUT;
       return GSOCK_TIMEDOUT;
     }
-    if ( ! FD_ISSET(m_fd, &writefds) ) {
+    if ( ! wxFD_ISSET(m_fd, &writefds) ) {
         GSocket_Debug(( "GSocket_Output_Timeout is buggy!\n" ));
     }
     else {