Refresh is necessary in earlier systems, no penalty when doing in 10.3+

[wxWidgets.git] / src / unix / gsocket.c

diff --git a/src/unix/gsocket.c b/src/unix/gsocket.c
index dd8bfc5a92e504309e5d95f2c5c5b26cf61df6b5..fd8824ce95e7a11853616bba635fbecee1adc28a 100644 (file)
--- a/src/unix/gsocket.c
+++ b/src/unix/gsocket.c
@@ -4,7 +4,7 @@
  * Authors: Guilhem Lavaux,
  *          Guillermo Rodriguez Garcia <guille@iies.es> (maintainer)
  * Purpose: GSocket main Unix and OS/2 file
  * Authors: Guilhem Lavaux,
  *          Guillermo Rodriguez Garcia <guille@iies.es> (maintainer)
  * Purpose: GSocket main Unix and OS/2 file

- * Licence: The wxWindows licence
+ * Licence: The wxWidgets licence

  * CVSID:   $Id$
  * -------------------------------------------------------------------------
  */
  * CVSID:   $Id$
  * -------------------------------------------------------------------------
  */


@@ -197,7 +197,7 @@ void GSocket_SetGUIFunctions(struct GSocketGUIFunctionsTable *guifunc)
 {
   gs_gui_functions = guifunc;
 }
 {
   gs_gui_functions = guifunc;
 }

-         
+

 int GSocket_Init(void)
 {
   if (gs_gui_functions)
 int GSocket_Init(void)
 {
   if (gs_gui_functions)


@@ -437,11 +437,11 @@ GAddress *GSocket_GetPeer(GSocket *socket)
  *  Sets up this socket as a server. The local address must have been
  *  set with GSocket_SetLocal() before GSocket_SetServer() is called.
  *  Returns GSOCK_NOERROR on success, one of the following otherwise:
  *  Sets up this socket as a server. The local address must have been
  *  set with GSocket_SetLocal() before GSocket_SetServer() is called.
  *  Returns GSOCK_NOERROR on success, one of the following otherwise:

- * 
+ *

  *  Error codes:
  *    GSOCK_INVSOCK - the socket is in use.
  *    GSOCK_INVADDR - the local address has not been set.
  *  Error codes:
  *    GSOCK_INVSOCK - the socket is in use.
  *    GSOCK_INVADDR - the local address has not been set.

- *    GSOCK_IOERR   - low-level error. 
+ *    GSOCK_IOERR   - low-level error.

  */
 GSocketError GSocket_SetServer(GSocket *sck)
 {
  */
 GSocketError GSocket_SetServer(GSocket *sck)
 {


@@ -466,7 +466,6 @@ GSocketError GSocket_SetServer(GSocket *sck)
   /* Initialize all fields */
   sck->m_stream   = TRUE;
   sck->m_server   = TRUE;
   /* Initialize all fields */
   sck->m_stream   = TRUE;
   sck->m_server   = TRUE;

-  sck->m_oriented = TRUE;

 
   /* Create the socket */
   sck->m_fd = socket(sck->m_local->m_realfamily, SOCK_STREAM, 0);
 
   /* Create the socket */
   sck->m_fd = socket(sck->m_local->m_realfamily, SOCK_STREAM, 0);


@@ -486,7 +485,8 @@ GSocketError GSocket_SetServer(GSocket *sck)
   /* allow a socket to re-bind if the socket is in the TIME_WAIT
      state after being previously closed.
    */
   /* allow a socket to re-bind if the socket is in the TIME_WAIT
      state after being previously closed.
    */

-  setsockopt(sck->m_fd, SOL_SOCKET, SO_REUSEADDR, (const char*)&arg, sizeof(u_long));
+  if (sck->m_reusable)
+    setsockopt(sck->m_fd, SOL_SOCKET, SO_REUSEADDR, (const char*)&arg, sizeof(u_long));

 
   /* Bind to the local address,
    * retrieve the actual address bound,
 
   /* Bind to the local address,
    * retrieve the actual address bound,


@@ -516,7 +516,7 @@ GSocketError GSocket_SetServer(GSocket *sck)
  *    GSOCK_TIMEDOUT   - timeout, no incoming connections.
  *    GSOCK_WOULDBLOCK - the call would block and the socket is nonblocking.
  *    GSOCK_MEMERR     - couldn't allocate memory.
  *    GSOCK_TIMEDOUT   - timeout, no incoming connections.
  *    GSOCK_WOULDBLOCK - the call would block and the socket is nonblocking.
  *    GSOCK_MEMERR     - couldn't allocate memory.

- *    GSOCK_IOERR      - low-level error. 
+ *    GSOCK_IOERR      - low-level error.

  */
 GSocket *GSocket_WaitConnection(GSocket *socket)
 {
  */
 GSocket *GSocket_WaitConnection(GSocket *socket)
 {


@@ -571,7 +571,6 @@ GSocket *GSocket_WaitConnection(GSocket *socket)
   /* Initialize all fields */
   connection->m_server   = FALSE;
   connection->m_stream   = TRUE;
   /* Initialize all fields */
   connection->m_server   = FALSE;
   connection->m_stream   = TRUE;

-  connection->m_oriented = TRUE;

 
   /* Setup the peer address field */
   connection->m_peer = GAddress_new();
 
   /* Setup the peer address field */
   connection->m_peer = GAddress_new();


@@ -599,6 +598,16 @@ GSocket *GSocket_WaitConnection(GSocket *socket)
   return connection;
 }
 
   return connection;
 }
 

+int GSocket_SetReusable(GSocket *socket)
+{
+    /* socket must not be null, and must not be in use/already bound */
+    if (NULL != socket && socket->m_fd == INVALID_SOCKET) {
+        socket->m_reusable = TRUE;
+        return TRUE;
+    }
+    return FALSE;
+}
+

 /* Client specific parts */
 
 /* GSocket_Connect:
 /* Client specific parts */
 
 /* GSocket_Connect:


@@ -622,7 +631,7 @@ GSocket *GSocket_WaitConnection(GSocket *socket)
  *    GSOCK_TIMEDOUT   - timeout, the connection failed.
  *    GSOCK_WOULDBLOCK - connection in progress (nonblocking sockets only)
  *    GSOCK_MEMERR     - couldn't allocate memory.
  *    GSOCK_TIMEDOUT   - timeout, the connection failed.
  *    GSOCK_WOULDBLOCK - connection in progress (nonblocking sockets only)
  *    GSOCK_MEMERR     - couldn't allocate memory.

- *    GSOCK_IOERR      - low-level error. 
+ *    GSOCK_IOERR      - low-level error.

  */
 GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream)
 {
  */
 GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream)
 {


@@ -648,7 +657,6 @@ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream)
 
   /* Streamed or dgram socket? */
   sck->m_stream   = (stream == GSOCK_STREAMED);
 
   /* Streamed or dgram socket? */
   sck->m_stream   = (stream == GSOCK_STREAMED);

-  sck->m_oriented = TRUE;

   sck->m_server   = FALSE;
   sck->m_establishing = FALSE;
 
   sck->m_server   = FALSE;
   sck->m_establishing = FALSE;
 


@@ -758,7 +766,6 @@ GSocketError GSocket_SetNonOriented(GSocket *sck)
   /* Initialize all fields */
   sck->m_stream   = FALSE;
   sck->m_server   = FALSE;
   /* Initialize all fields */
   sck->m_stream   = FALSE;
   sck->m_server   = FALSE;

-  sck->m_oriented = FALSE;

 
   /* Create the socket */
   sck->m_fd = socket(sck->m_local->m_realfamily, SOCK_DGRAM, 0);
 
   /* Create the socket */
   sck->m_fd = socket(sck->m_local->m_realfamily, SOCK_DGRAM, 0);


@@ -808,7 +815,7 @@ int GSocket_Read(GSocket *socket, char *buffer, int size)
 
   /* Disable events during query of socket status */
   _GSocket_Disable(socket, GSOCK_INPUT);
 
   /* Disable events during query of socket status */
   _GSocket_Disable(socket, GSOCK_INPUT);

-    
+

   /* If the socket is blocking, wait for data (with a timeout) */
   if (_GSocket_Input_Timeout(socket) == GSOCK_TIMEDOUT)
     /* We no longer return here immediately, otherwise socket events would not be re-enabled! */
   /* If the socket is blocking, wait for data (with a timeout) */
   if (_GSocket_Input_Timeout(socket) == GSOCK_TIMEDOUT)
     /* We no longer return here immediately, otherwise socket events would not be re-enabled! */


@@ -820,7 +827,7 @@ int GSocket_Read(GSocket *socket, char *buffer, int size)
     else
       ret = _GSocket_Recv_Dgram(socket, buffer, size);
   }
     else
       ret = _GSocket_Recv_Dgram(socket, buffer, size);
   }

-    
+

   if (ret == -1)
   {
     if (errno == EWOULDBLOCK)
   if (ret == -1)
   {
     if (errno == EWOULDBLOCK)


@@ -828,19 +835,19 @@ int GSocket_Read(GSocket *socket, char *buffer, int size)
     else
       socket->m_error = GSOCK_IOERR;
   }
     else
       socket->m_error = GSOCK_IOERR;
   }

-  
+

   /* Enable events again now that we are done processing */
   _GSocket_Enable(socket, GSOCK_INPUT);
   /* Enable events again now that we are done processing */
   _GSocket_Enable(socket, GSOCK_INPUT);

-  
+

   return ret;
 }
 
 int GSocket_Write(GSocket *socket, const char *buffer, int size)
   return ret;
 }
 
 int GSocket_Write(GSocket *socket, const char *buffer, int size)

-{                        
+{

   int ret;
 
   assert(socket != NULL);
   int ret;
 
   assert(socket != NULL);

-  
+

   GSocket_Debug(( "GSocket_Write #1, size %d\n", size ));
 
   if (socket->m_fd == INVALID_SOCKET || socket->m_server)
   GSocket_Debug(( "GSocket_Write #1, size %d\n", size ));
 
   if (socket->m_fd == INVALID_SOCKET || socket->m_server)


@@ -862,7 +869,7 @@ int GSocket_Write(GSocket *socket, const char *buffer, int size)
     ret = _GSocket_Send_Stream(socket, buffer, size);
   else
     ret = _GSocket_Send_Dgram(socket, buffer, size);
     ret = _GSocket_Send_Stream(socket, buffer, size);
   else
     ret = _GSocket_Send_Dgram(socket, buffer, size);

-    
+

   GSocket_Debug(( "GSocket_Write #4, size %d\n", size ));
 
   if (ret == -1)
   GSocket_Debug(( "GSocket_Write #4, size %d\n", size ));
 
   if (ret == -1)


@@ -886,7 +893,7 @@ int GSocket_Write(GSocket *socket, const char *buffer, int size)
     _GSocket_Enable(socket, GSOCK_OUTPUT);
     return -1;
   }
     _GSocket_Enable(socket, GSOCK_OUTPUT);
     return -1;
   }

-  
+

   GSocket_Debug(( "GSocket_Write #5, size %d ret %d\n", size, ret ));
 
   return ret;
   GSocket_Debug(( "GSocket_Write #5, size %d ret %d\n", size, ret ));
 
   return ret;


@@ -964,7 +971,7 @@ GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags)
         {
           socket->m_detected = GSOCK_LOST_FLAG;
           socket->m_establishing = FALSE;
         {
           socket->m_detected = GSOCK_LOST_FLAG;
           socket->m_establishing = FALSE;

-      
+

           /* LOST event: Abort any further processing */
           return (GSOCK_LOST_FLAG & flags);
         }
           /* LOST event: Abort any further processing */
           return (GSOCK_LOST_FLAG & flags);
         }


@@ -1069,7 +1076,7 @@ GSocketError GSocket_GetError(GSocket *socket)
  *   operation, there is still data available, the callback function will
  *   be called again.
  * GSOCK_OUTPUT:
  *   operation, there is still data available, the callback function will
  *   be called again.
  * GSOCK_OUTPUT:

- *   The socket is available for writing. That is, the next write call 
+ *   The socket is available for writing. That is, the next write call

  *   won't block. This event is generated only once, when the connection is
  *   first established, and then only if a call failed with GSOCK_WOULDBLOCK,
  *   when the output buffer empties again. This means that the app should
  *   won't block. This event is generated only once, when the connection is
  *   first established, and then only if a call failed with GSOCK_WOULDBLOCK,
  *   when the output buffer empties again. This means that the app should


@@ -1129,6 +1136,25 @@ void GSocket_UnsetCallback(GSocket *socket, GSocketEventFlags flags)
   }
 }
 
   }
 }
 

+GSocketError GSocket_GetSockOpt(GSocket *socket, int level, int optname,
+                                void *optval, int *optlen)
+{
+    if (getsockopt(socket->m_fd, level, optname, optval, optlen) == 0)
+    {
+        return GSOCK_NOERROR;
+    }
+    return GSOCK_OPTERR;
+}
+
+GSocketError GSocket_SetSockOpt(GSocket *socket, int level, int optname,
+                                const void *optval, int optlen)
+{
+    if (setsockopt(socket->m_fd, level, optname, optval, optlen) == 0)
+    {
+        return GSOCK_NOERROR;
+    }
+    return GSOCK_OPTERR;
+}

 
 #define CALL_CALLBACK(socket, event) {                                  \
   _GSocket_Disable(socket, event);                                      \
 
 #define CALL_CALLBACK(socket, event) {                                  \
   _GSocket_Disable(socket, event);                                      \


@@ -1669,7 +1695,7 @@ GSocketError GAddress_INET_SetPortName(GAddress *address, const char *port,
     address->m_error = GSOCK_INVPORT;
     return GSOCK_INVPORT;
   }
     address->m_error = GSOCK_INVPORT;
     return GSOCK_INVPORT;
   }

- 
+

   se = getservbyname(port, protocol);
   if (!se)
   {
   se = getservbyname(port, protocol);
   if (!se)
   {


@@ -1701,7 +1727,7 @@ GSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port)
 
   assert(address != NULL);
   CHECK_ADDRESS(address, INET);
 
   assert(address != NULL);
   CHECK_ADDRESS(address, INET);

- 
+

   addr = (struct sockaddr_in *)address->m_addr;
   addr->sin_port = htons(port);
 
   addr = (struct sockaddr_in *)address->m_addr;
   addr->sin_port = htons(port);
 


@@ -1714,7 +1740,7 @@ GSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname, size_t
   char *addr_buf;
   struct sockaddr_in *addr;
 
   char *addr_buf;
   struct sockaddr_in *addr;
 

-  assert(address != NULL); 
+  assert(address != NULL);

   CHECK_ADDRESS(address, INET);
 
   addr = (struct sockaddr_in *)address->m_addr;
   CHECK_ADDRESS(address, INET);
 
   addr = (struct sockaddr_in *)address->m_addr;


@@ -1736,8 +1762,8 @@ unsigned long GAddress_INET_GetHostAddress(GAddress *address)
 {
   struct sockaddr_in *addr;
 
 {
   struct sockaddr_in *addr;
 

-  assert(address != NULL); 
-  CHECK_ADDRESS_RETVAL(address, INET, 0); 
+  assert(address != NULL);
+  CHECK_ADDRESS_RETVAL(address, INET, 0);

 
   addr = (struct sockaddr_in *)address->m_addr;
 
 
   addr = (struct sockaddr_in *)address->m_addr;
 


@@ -1748,8 +1774,8 @@ unsigned short GAddress_INET_GetPort(GAddress *address)
 {
   struct sockaddr_in *addr;
 
 {
   struct sockaddr_in *addr;
 

-  assert(address != NULL); 
-  CHECK_ADDRESS_RETVAL(address, INET, 0); 
+  assert(address != NULL);
+  CHECK_ADDRESS_RETVAL(address, INET, 0);

 
   addr = (struct sockaddr_in *)address->m_addr;
   return ntohs(addr->sin_port);
 
   addr = (struct sockaddr_in *)address->m_addr;
   return ntohs(addr->sin_port);


@@ -1786,9 +1812,9 @@ GSocketError GAddress_UNIX_SetPath(GAddress *address, const char *path)
 {
   struct sockaddr_un *addr;
 
 {
   struct sockaddr_un *addr;
 

-  assert(address != NULL); 
+  assert(address != NULL);

 
 

-  CHECK_ADDRESS(address, UNIX); 
+  CHECK_ADDRESS(address, UNIX);

 
   addr = ((struct sockaddr_un *)address->m_addr);
   strncpy(addr->sun_path, path, UNIX_SOCK_PATHLEN);
 
   addr = ((struct sockaddr_un *)address->m_addr);
   strncpy(addr->sun_path, path, UNIX_SOCK_PATHLEN);