]> git.saurik.com Git - wxWidgets.git/blobdiff - src/msw/gsocket.c
Some doc corrections
[wxWidgets.git] / src / msw / gsocket.c
index 59214ea7d64fd591f2903d333b010ab91b882212..60d2c3f417c1d9ba254fac62c7588a3243a20046 100644 (file)
  * PLEASE don't put C++ comments here - this is a C source file.
  */
 
+#ifdef _MSC_VER
+   /* RPCNOTIFICATION_ROUTINE in rasasync.h (included from winsock.h),
+    * warning: conditional expression is constant.
+    */
+#  pragma warning(disable:4115)
+   /* FD_SET,
+    * warning: named type definition in parentheses.
+    */
+#  pragma warning(disable:4127)
+   /* GAddress_UNIX_GetPath,
+    * warning: unreferenced formal parameter.
+    */
+#  pragma warning(disable:4100)
+#endif /* _MSC_VER */
+
+
 #ifndef __GSOCKET_STANDALONE__
-#include "wx/setup.h"
+#  include "wx/setup.h"
 #endif
 
 #if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__)
 
 #ifndef __GSOCKET_STANDALONE__
-
-#include "wx/msw/gsockmsw.h"
-#include "wx/gsocket.h"
-
+#  include "wx/msw/gsockmsw.h"
+#  include "wx/gsocket.h"
 #else
+#  include "gsockmsw.h"
+#  include "gsocket.h"
+#endif /* __GSOCKET_STANDALONE__ */
 
-#include "gsockmsw.h"
-#include "gsocket.h"
+/* Redefine some GUI-only functions to do nothing in console mode */
+#if defined(wxUSE_GUI) && !wxUSE_GUI
+#  define _GSocket_GUI_Init(socket) (1)
+#  define _GSocket_GUI_Destroy(socket)
+#  define _GSocket_Enable_Events(socket)
+#  define _GSocket_Disable_Events(socket)
+#endif /* wxUSE_GUI */
 
-#endif /* __GSOCKET_STANDALONE__ */
 
 #include <assert.h>
 #include <string.h>
 #include <stdlib.h>
 #include <stddef.h>
 #include <ctype.h>
+
 #include <winsock.h>
 
+
 /* if we use configure for MSW SOCKLEN_T will be already defined */
 #ifndef SOCKLEN_T
-#define SOCKLEN_T  int
-#endif
-
-#if defined(__BORLANDC__)
-GAddress *GAddress_new(void);
-GSocket *GSocket_new(void);
+#  define SOCKLEN_T int
 #endif
 
-#ifdef _MSC_VER
-    /* using FD_SET results in this warning */
-    #pragma warning(disable:4127) /* conditional expression is constant */
-#endif /* Visual C++ */
-
 
 /* Constructors / Destructors for GSocket */
 
-GSocket *GSocket_new()
+GSocket *GSocket_new(void)
 {
-  int i;
+  int i, success;
   GSocket *socket;
 
   if ((socket = (GSocket *) malloc(sizeof(GSocket))) == NULL)
@@ -68,6 +81,7 @@ GSocket *GSocket_new()
   {
     socket->m_cbacks[i]     = NULL;
   }
+  socket->m_detected        = 0;
   socket->m_local           = NULL;     
   socket->m_peer            = NULL;     
   socket->m_error           = GSOCK_NOERROR;
@@ -76,13 +90,14 @@ GSocket *GSocket_new()
   socket->m_non_blocking    = FALSE;
   socket->m_timeout.tv_sec  = 10 * 60;  /* 10 minutes */
   socket->m_timeout.tv_usec = 0;
-  socket->m_detected        = 0;
+  socket->m_establishing    = FALSE;
 
   /* Per-socket GUI-specific initialization */
-  if (!_GSocket_GUI_Init(socket))
+  success = _GSocket_GUI_Init(socket);
+  if (!success)
   {
     free(socket);
-    return NULL;
+    socket = NULL;
   }
 
   return socket;
@@ -460,6 +475,7 @@ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream)
   sck->m_stream   = (stream == GSOCK_STREAMED);
   sck->m_oriented = TRUE;
   sck->m_server   = FALSE;
+  sck->m_establishing = FALSE;
 
   /* Create the socket */
   sck->m_fd = socket(sck->m_peer->m_realfamily,
@@ -508,6 +524,7 @@ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream)
      */
     if ((err == WSAEWOULDBLOCK) && (sck->m_non_blocking))
     {
+      sck->m_establishing = TRUE;
       sck->m_error = GSOCK_WOULDBLOCK;
       return GSOCK_WOULDBLOCK;
     }
@@ -679,9 +696,70 @@ int GSocket_Write(GSocket *socket, const char *buffer, int size)
  */
 GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags)
 {
+#if defined(wxUSE_GUI) && !wxUSE_GUI
+
+  GSocketEventFlags result = 0;
+  fd_set readfds;
+  fd_set writefds;
+  fd_set exceptfds;
+  static const struct timeval tv = { 0, 0 };
+
   assert(socket != NULL);
 
+  FD_ZERO(&readfds);
+  FD_ZERO(&writefds);
+  FD_ZERO(&exceptfds);
+  FD_SET(socket->m_fd, &readfds);
+  FD_SET(socket->m_fd, &writefds);
+  FD_SET(socket->m_fd, &exceptfds);
+
+  /* Check known state first */
+  result |= (GSOCK_CONNECTION_FLAG & socket->m_detected & flags);
+  result |= (GSOCK_LOST_FLAG       & socket->m_detected & flags);
+
+  /* Try select now */
+  if (select(socket->m_fd + 1, &readfds, &writefds, &exceptfds, &tv) <= 0)
+    return result;
+
+  /* Check for readability */
+  if (FD_ISSET(socket->m_fd, &readfds))
+  {
+    /* Assume that closure of the socket is always reported via exceptfds */
+    if (socket->m_server && socket->m_stream)
+      result |= (GSOCK_CONNECTION_FLAG & flags);
+    else
+      result |= (GSOCK_INPUT_FLAG & flags);
+  }
+
+  /* Check for writability */
+  if (FD_ISSET(socket->m_fd, &writefds))
+  {
+    if (socket->m_establishing && !socket->m_server)
+    {
+      result |= (GSOCK_CONNECTION_FLAG & flags);
+      socket->m_establishing = FALSE;
+      socket->m_detected |= GSOCK_CONNECTION_FLAG;
+    }
+    else
+      result |= (GSOCK_OUTPUT_FLAG & flags);
+  }
+
+  /* Check for exceptions and errors */
+  if (FD_ISSET(socket->m_fd, &exceptfds))
+  {
+    result |= (GSOCK_LOST_FLAG & flags);
+    socket->m_establishing = FALSE;
+    socket->m_detected = GSOCK_LOST_FLAG;
+  }
+
+  return result;
+
+#else 
+
+  assert(socket != NULL);
   return flags & socket->m_detected;
+
+#endif /* !wxUSE_GUI */
 }
 
 /* Attributes */
@@ -690,7 +768,7 @@ GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags)
  *  Sets the socket to non-blocking mode. All IO calls will return
  *  immediately.
  */
-void GSocket_SetNonBlocking(GSocket *socket, bool non_block)
+void GSocket_SetNonBlocking(GSocket *socket, int non_block)
 {
   assert(socket != NULL);
 
@@ -937,23 +1015,39 @@ int _GSocket_Send_Dgram(GSocket *socket, const char *buffer, int size)
  * -------------------------------------------------------------------------
  */
 
-/* CHECK_ADDRESS verifies that the current family is either GSOCK_NOFAMILY
- * or GSOCK_*family*, and if it is GSOCK_NOFAMILY, it initalizes address
- * to be a GSOCK_*family*. In other cases, it returns GSOCK_INVADDR.
+/* CHECK_ADDRESS verifies that the current address family is either
+ * GSOCK_NOFAMILY or GSOCK_*family*, and if it is GSOCK_NOFAMILY, it
+ * initalizes it to be a GSOCK_*family*. In other cases, it returns
+ * an appropiate error code.
+ *
+ * CHECK_ADDRESS_RETVAL does the same but returning 'retval' on error.
  */
-#define CHECK_ADDRESS(address, family, retval)                      \
+#define CHECK_ADDRESS(address, family)                              \
 {                                                                   \
   if (address->m_family == GSOCK_NOFAMILY)                          \
     if (_GAddress_Init_##family(address) != GSOCK_NOERROR)          \
       return address->m_error;                                      \
   if (address->m_family != GSOCK_##family)                          \
+  {                                                                 \
+    address->m_error = GSOCK_INVADDR;                               \
+    return GSOCK_INVADDR;                                           \
+  }                                                                 \
+}
+
+#define CHECK_ADDRESS_RETVAL(address, family, retval)               \
+{                                                                   \
+  if (address->m_family == GSOCK_NOFAMILY)                          \
+    if (_GAddress_Init_##family(address) != GSOCK_NOERROR)          \
+      return retval;                                                \
+  if (address->m_family != GSOCK_##family)                          \
   {                                                                 \
     address->m_error = GSOCK_INVADDR;                               \
     return retval;                                                  \
   }                                                                 \
 }
 
-GAddress *GAddress_new()
+
+GAddress *GAddress_new(void)
 {
   GAddress *address;
 
@@ -996,6 +1090,9 @@ void GAddress_destroy(GAddress *address)
 {
   assert(address != NULL);
 
+  if (address->m_addr)
+    free(address->m_addr);
+
   free(address);
 }
 
@@ -1105,7 +1202,7 @@ GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname)
 
   assert(address != NULL);
 
-  CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+  CHECK_ADDRESS(address, INET);
 
   addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
 
@@ -1141,7 +1238,7 @@ GSocketError GAddress_INET_SetHostAddress(GAddress *address,
 
   assert(address != NULL);
 
-  CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+  CHECK_ADDRESS(address, INET);
 
   addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
   addr->s_addr = hostaddr;
@@ -1156,7 +1253,7 @@ GSocketError GAddress_INET_SetPortName(GAddress *address, const char *port,
   struct sockaddr_in *addr;
 
   assert(address != NULL);
-  CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+  CHECK_ADDRESS(address, INET);
 
   if (!port)
   {
@@ -1192,7 +1289,7 @@ GSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port)
   struct sockaddr_in *addr;
 
   assert(address != NULL);
-  CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+  CHECK_ADDRESS(address, INET);
 
   addr = (struct sockaddr_in *)address->m_addr;
   addr->sin_port = htons(port);
@@ -1207,7 +1304,7 @@ GSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname, size_t
   struct sockaddr_in *addr;
 
   assert(address != NULL);
-  CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+  CHECK_ADDRESS(address, INET);
 
   addr = (struct sockaddr_in *)address->m_addr;
   addr_buf = (char *)&(addr->sin_addr);
@@ -1229,7 +1326,7 @@ unsigned long GAddress_INET_GetHostAddress(GAddress *address)
   struct sockaddr_in *addr;
 
   assert(address != NULL);
-  CHECK_ADDRESS(address, INET, 0);
+  CHECK_ADDRESS_RETVAL(address, INET, 0);
 
   addr = (struct sockaddr_in *)address->m_addr;
 
@@ -1241,7 +1338,7 @@ unsigned short GAddress_INET_GetPort(GAddress *address)
   struct sockaddr_in *addr;
 
   assert(address != NULL);
-  CHECK_ADDRESS(address, INET, 0);
+  CHECK_ADDRESS_RETVAL(address, INET, 0);
 
   addr = (struct sockaddr_in *)address->m_addr;
   return ntohs(addr->sin_port);
@@ -1253,10 +1350,6 @@ unsigned short GAddress_INET_GetPort(GAddress *address)
  * -------------------------------------------------------------------------
  */
 
-#ifdef _MSC_VER
-    #pragma warning(disable:4100) /* unreferenced formal parameter */
-#endif /* Visual C++ */
-
 GSocketError _GAddress_Init_UNIX(GAddress *address)
 {
   assert (address != NULL);