* -------------------------------------------------------------------------
*/
+#ifndef __GSOCKET_STANDALONE__
+#include "wx/setup.h"
+#endif
-#ifdef __WXMSW__
+#if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__)
+
+
+#ifndef __GSOCKET_STANDALONE__
-#include "wx/setup.h"
#include "wx/msw/gsockmsw.h"
#include "wx/gsocket.h"
-#define INSTANCE wxhInstance
+#define INSTANCE wxGetInstance()
#else
* be available and it must containt the app's instance
* handle.
*/
-#define INSTANCE hInst
+#define INSTANCE hInst
-#endif /* __WXMSW__ */
+#endif /* __GSOCKET_STANDALONE__ */
-#if !defined(__WXMSW__) || (defined(__WXMSW__) && wxUSE_SOCKETS)
-
#include <assert.h>
#include <string.h>
#include <stdio.h>
socket->m_stream = TRUE;
socket->m_non_blocking = FALSE;
socket->m_timeout.tv_sec = 10 * 60; /* 10 minutes */
- socket->m_timeout.tv_usec = 0;
+ socket->m_timeout.tv_usec = 0;
+ socket->m_detected = 0;
/* Allocate a new message number for this socket */
EnterCriticalSection(&critical);
{
assert(socket != NULL);
- /* We don't want more event notifications; so first of all we
- * remove the socket from the list (NOTE: we won't get a CLOSE
- * event for this socket if it wasn't closed before).
- */
+ /* Remove the socket from the list */
EnterCriticalSection(&critical);
socketList[(socket->m_msgnumber - WM_USER)] = NULL;
LeaveCriticalSection(&critical);
- /* We check that the socket is really shutdowned */
+ /* Check that the socket is really shutdowned */
if (socket->m_fd != INVALID_SOCKET)
GSocket_Shutdown(socket);
- /* We destroy private addresses */
+ /* Destroy private addresses */
if (socket->m_local)
GAddress_destroy(socket->m_local);
if (socket->m_peer)
GAddress_destroy(socket->m_peer);
- /* We destroy socket itself */
+ /* Destroy socket itself */
free(socket);
}
assert(socket != NULL);
- /* If socket has been created, we shutdown it */
+ /* If socket has been created, shutdown it */
if (socket->m_fd != INVALID_SOCKET)
{
- /* TODO: Guilhem only does this for connection oriented sockets (?) */
shutdown(socket->m_fd, 2);
closesocket(socket->m_fd);
socket->m_fd = INVALID_SOCKET;
}
- /* We disable GUI callbacks */
+ /* Disable GUI callbacks */
for (evt = 0; evt < GSOCK_MAX_EVENT; evt++)
- {
socket->m_cbacks[evt] = NULL;
- }
- _GSocket_Configure_Callbacks(socket);
+ socket->m_detected = 0;
+ _GSocket_Disable_Events(socket);
}
/* Address handling */
/* Create the socket */
sck->m_fd = socket(sck->m_local->m_realfamily, SOCK_STREAM, 0);
- ioctlsocket(sck->m_fd, FIONBIO, (u_long FAR *) &arg);
if (sck->m_fd == INVALID_SOCKET)
{
return GSOCK_IOERR;
}
+ ioctlsocket(sck->m_fd, FIONBIO, (u_long FAR *) &arg);
+ _GSocket_Enable_Events(sck);
+
/* Bind the socket to the LOCAL address */
if (bind(sck->m_fd, sck->m_local->m_addr, sck->m_local->m_len) != 0)
{
}
return GSOCK_NOERROR;
-}
+}
/* GSocket_WaitConnection:
* Waits for an incoming client connection.
assert(sck != NULL);
- /* If the socket has already been created, we exit immediately */
+ sck->m_detected &= ~GSOCK_CONNECTION_FLAG;
+
if (sck->m_fd == INVALID_SOCKET || !sck->m_server)
{
sck->m_error = GSOCK_INVSOCK;
return NULL;
}
- ioctlsocket(connection->m_fd, FIONBIO, (u_long FAR *) &arg);
-
/* Initialize all fields */
connection->m_server = FALSE;
connection->m_stream = TRUE;
connection->m_oriented = TRUE;
+ ioctlsocket(connection->m_fd, FIONBIO, (u_long FAR *) &arg);
+ _GSocket_Enable_Events(connection);
+
return connection;
}
/* Create the socket */
sck->m_fd = socket(sck->m_local->m_realfamily, SOCK_DGRAM, 0);
- ioctlsocket(sck->m_fd, FIONBIO, (u_long FAR *) &arg);
if (sck->m_fd == INVALID_SOCKET)
{
return GSOCK_IOERR;
}
+ ioctlsocket(sck->m_fd, FIONBIO, (u_long FAR *) &arg);
+ _GSocket_Enable_Events(sck);
+
/* Bind it to the LOCAL address */
if (bind(sck->m_fd, sck->m_local->m_addr, sck->m_local->m_len) != 0)
{
GSocketError GSocket_SetBroadcast(GSocket *sck)
{
- BOOL b;
+ BOOL b = TRUE;
assert(sck != NULL);
if (GSocket_SetNonOriented(sck) != GSOCK_NOERROR)
return sck->m_error;
- b = TRUE;
- setsockopt(sck->m_fd, SOL_SOCKET, SO_BROADCAST, (const char FAR *) &b, sizeof(b));
+ setsockopt(sck->m_fd, SOL_SOCKET, SO_BROADCAST,
+ (const char FAR *) &b, sizeof(b));
return GSOCK_NOERROR;
}
/* GSocket_Connect:
* Establishes a client connection to a server using the "Peer"
* field of GSocket. "Peer" must be set by GSocket_SetPeer() before
- * GSocket_Connect() is called. Possible error codes are GSOCK_INVSOCK
- * if the socket is alredy in use, GSOCK_INVADDR if the peer address
- * has not been set, or GSOCK_IOERR for other internal errors.
+ * GSocket_Connect() is called. Possible error codes are GSOCK_INVSOCK,
+ * GSOCK_INVADDR, GSOCK_TIMEDOUT, GSOCK_WOULDBLOCK and GSOCK_IOERR.
+ * If a socket is nonblocking and Connect() returns GSOCK_WOULDBLOCK,
+ * the connection request can be completed later. Use GSocket_Select()
+ * to check or wait for a GSOCK_CONNECTION event.
*/
GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream)
{
assert(sck != NULL);
+ sck->m_detected &= ~GSOCK_CONNECTION_FLAG;
+
if (sck->m_fd != INVALID_SOCKET)
{
sck->m_error = GSOCK_INVSOCK;
/* Create the socket */
sck->m_fd = socket(sck->m_peer->m_realfamily, type, 0);
- ioctlsocket(sck->m_fd, FIONBIO, (u_long FAR *) &arg);
if (sck->m_fd == INVALID_SOCKET)
{
return GSOCK_IOERR;
}
+ ioctlsocket(sck->m_fd, FIONBIO, (u_long FAR *) &arg);
+ _GSocket_Enable_Events(sck);
+
/* Connect it to the PEER address, with a timeout (see below) */
ret = connect(sck->m_fd, sck->m_peer->m_addr, sck->m_peer->m_len);
* checking for writability to see if the connection request
* completes.
*/
- if ((err == WSAEWOULDBLOCK) && (sck->m_non_blocking == FALSE))
+ if ((err == WSAEWOULDBLOCK) && (!sck->m_non_blocking))
{
if (_GSocket_Output_Timeout(sck) == GSOCK_TIMEDOUT)
{
closesocket(sck->m_fd);
sck->m_fd = INVALID_SOCKET;
- /* sck->m_error is set in _GSocket_Input_Timeout */
+ /* sck->m_error is set in _GSocket_Output_Timeout */
return GSOCK_TIMEDOUT;
}
else
* this way if the connection completes, a GSOCK_CONNECTION
* event will be generated, if enabled.
*/
- if ((err == WSAEWOULDBLOCK) && (sck->m_non_blocking == TRUE))
+ if ((err == WSAEWOULDBLOCK) && (sck->m_non_blocking))
{
sck->m_error = GSOCK_WOULDBLOCK;
return GSOCK_WOULDBLOCK;
/* Like recv(), send(), ... */
int GSocket_Read(GSocket *socket, char *buffer, int size)
{
+ int ret;
+
assert(socket != NULL);
+ socket->m_detected &= ~GSOCK_INPUT_FLAG;
+
if (socket->m_fd == INVALID_SOCKET || socket->m_server)
{
socket->m_error = GSOCK_INVSOCK;
return -1;
}
+ /* If the socket is blocking, wait for data (with a timeout) */
if (_GSocket_Input_Timeout(socket) == GSOCK_TIMEDOUT)
return -1;
+ /* Read the data */
if (socket->m_stream)
- return _GSocket_Recv_Stream(socket, buffer, size);
+ ret = _GSocket_Recv_Stream(socket, buffer, size);
else
- return _GSocket_Recv_Dgram(socket, buffer, size);
+ ret = _GSocket_Recv_Dgram(socket, buffer, size);
+
+ if (ret == SOCKET_ERROR)
+ {
+ /* NOTE: Window sockets exhibit a very strange property;
+ * if the socket is in non-blocking mode (which is always
+ * the case here, no matter the setting of GSocket itself)
+ * a call to send() can fail with EWOULDBLOCK even when
+ * select() says that the socket is readable.
+ *
+ * This can break several things because, usually, if
+ * select() says that the socket is writable, it is
+ * assumed that send() won't fail. To avoid this, we
+ * return 0 instead of -1 for this special case.
+ */
+ if (WSAGetLastError() != WSAEWOULDBLOCK)
+ {
+ socket->m_error = GSOCK_IOERR;
+ return -1;
+ }
+ else
+ {
+ socket->m_error = GSOCK_WOULDBLOCK;
+ return 0;
+ }
+ }
+
+ return ret;
}
int GSocket_Write(GSocket *socket, const char *buffer, int size)
{
+ int ret;
+
assert(socket != NULL);
if (socket->m_fd == INVALID_SOCKET || socket->m_server)
return -1;
}
+ /* If the socket is blocking, wait for writability (with a timeout) */
if (_GSocket_Output_Timeout(socket) == GSOCK_TIMEDOUT)
return -1;
+ /* Read the data */
if (socket->m_stream)
- return _GSocket_Send_Stream(socket, buffer, size);
+ ret = _GSocket_Send_Stream(socket, buffer, size);
else
- return _GSocket_Send_Dgram(socket, buffer, size);
-}
-
-bool GSocket_DataAvailable(GSocket *socket)
-{
- fd_set read_set;
- struct timeval tv;
-
- assert(socket != NULL);
+ ret = _GSocket_Send_Dgram(socket, buffer, size);
- if (socket->m_fd == INVALID_SOCKET || socket->m_server)
+ if (ret == SOCKET_ERROR)
{
- socket->m_error = GSOCK_INVSOCK;
- return FALSE;
- }
+ if (WSAGetLastError() != WSAEWOULDBLOCK)
+ socket->m_error = GSOCK_IOERR;
+ else
+ socket->m_error = GSOCK_WOULDBLOCK;
- FD_ZERO(&read_set);
- FD_SET(socket->m_fd, &read_set);
+ socket->m_detected &= ~GSOCK_OUTPUT_FLAG;
+ return -1;
+ }
- tv.tv_sec = 0;
- tv.tv_usec = 0;
+ return ret;
+}
- select(socket->m_fd + 1, &read_set, NULL, NULL, &tv);
+/* GSocket_Select:
+ * Polls the socket to determine its status. This function will
+ * check for the events specified in the 'flags' parameter, and
+ * it will return a mask indicating which operations can be
+ * performed. This function won't block, regardless of the
+ * mode (blocking|nonblocking) of the socket.
+ */
+GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags)
+{
+ assert(socket != NULL);
- return FD_ISSET(socket->m_fd, &read_set);
+ return (flags & socket->m_detected);
}
/* Flags */
/* GSocket_SetNonBlocking:
- * Sets the socket in non-blocking mode. This is useful if
+ * Sets the socket to non-blocking mode. This is useful if
* we don't want to wait.
*/
void GSocket_SetNonBlocking(GSocket *socket, bool non_block)
}
/* GSocket_SetTimeout:
+ * Sets the timeout for blocking calls. Time is
+ * expressed in milliseconds.
*/
-void GSocket_SetTimeout(GSocket *socket, unsigned long millisecs)
+void GSocket_SetTimeout(GSocket *socket, unsigned long millis)
{
assert(socket != NULL);
- socket->m_timeout.tv_sec = (millisecs / 1000);
- socket->m_timeout.tv_usec = (millisecs % 1000) * 1000;
+ socket->m_timeout.tv_sec = (millis / 1000);
+ socket->m_timeout.tv_usec = (millis % 1000) * 1000;
}
/* GSocket_GetError:
*/
/* GSocket_SetCallback:
- * Enables the callbacks specified by 'event'. Note that 'event'
+ * Enables the callbacks specified by 'flags'. Note that 'flags'
* may be a combination of flags OR'ed toghether, so the same
* callback function can be made to accept different events.
* The callback function must have the following prototype:
*
* void function(GSocket *socket, GSocketEvent event, char *cdata)
*/
-void GSocket_SetCallback(GSocket *socket, GSocketEventFlags event,
+void GSocket_SetCallback(GSocket *socket, GSocketEventFlags flags,
GSocketCallback callback, char *cdata)
{
int count;
for (count = 0; count < GSOCK_MAX_EVENT; count++)
{
- /* We test each flag and enable the corresponding events */
- if ((event & (1 << count)) != 0)
+ if ((flags & (1 << count)) != 0)
{
socket->m_cbacks[count] = callback;
socket->m_data[count] = cdata;
}
}
-
- _GSocket_Configure_Callbacks(socket);
}
/* GSocket_UnsetCallback:
- * Disables all callbacks specified by 'event', which may be a
+ * Disables all callbacks specified by 'flags', which may be a
* combination of flags OR'ed toghether.
*/
-void GSocket_UnsetCallback(GSocket *socket, GSocketEventFlags event)
+void GSocket_UnsetCallback(GSocket *socket, GSocketEventFlags flags)
{
int count = 0;
for (count = 0; count < GSOCK_MAX_EVENT; count++)
{
- /* We test each flag and disable the corresponding events */
- if ((event & (1 << count)) != 0)
+ if ((flags & (1 << count)) != 0)
{
socket->m_cbacks[count] = NULL;
+ socket->m_data[count] = NULL;
}
}
-
- _GSocket_Configure_Callbacks(socket);
}
/* Internals */
-void _GSocket_Configure_Callbacks(GSocket *socket)
+/* _GSocket_Enable_Events:
+ * We enable all event notifications here (we need to be notified
+ * of all events for internal processing) but we will only notify
+ * users when an appropiate callback function has been installed.
+ */
+void _GSocket_Enable_Events(GSocket *socket)
{
- long mask = 0;
- int count;
+ assert (socket != NULL);
- for (count = 0; count < GSOCK_MAX_EVENT; count++)
+ if (socket->m_fd != INVALID_SOCKET)
{
- if (socket->m_cbacks[count] != NULL)
- {
- switch (count)
- {
- case GSOCK_INPUT: mask |= FD_READ; break;
- case GSOCK_OUTPUT: mask |= FD_WRITE; break;
- case GSOCK_CONNECTION: mask |= (FD_ACCEPT | FD_CONNECT); break;
- case GSOCK_LOST: mask |= FD_CLOSE; break;
- }
- }
+ WSAAsyncSelect(socket->m_fd, hWin, socket->m_msgnumber,
+ FD_READ | FD_WRITE | FD_ACCEPT | FD_CONNECT | FD_CLOSE);
}
+}
- WSAAsyncSelect(socket->m_fd, hWin, socket->m_msgnumber, mask);
+/* _GSocket_Disable_Events:
+ * Disable event notifications (when shutdowning the socket)
+ */
+void _GSocket_Disable_Events(GSocket *socket)
+{
+ assert (socket != NULL);
+
+ if (socket->m_fd != INVALID_SOCKET)
+ {
+ WSAAsyncSelect(socket->m_fd, hWin, socket->m_msgnumber, 0);
+ }
}
+
LRESULT CALLBACK _GSocket_Internal_WinProc(HWND hWnd,
UINT uMsg,
WPARAM wParam,
GSocket *socket;
GSocketEvent event;
GSocketCallback cback;
+ char *data;
if (uMsg >= WM_USER && uMsg <= (WM_USER + MAXSOCKETS - 1))
{
socket = socketList[(uMsg - WM_USER)];
event = -1;
cback = NULL;
+ data = NULL;
/* Check that the socket still exists (it has not been
* destroyed) and for safety, check that the m_fd field
case FD_READ: event = GSOCK_INPUT; break;
case FD_WRITE: event = GSOCK_OUTPUT; break;
case FD_ACCEPT: event = GSOCK_CONNECTION; break;
- case FD_CONNECT: event = GSOCK_CONNECTION; break;
+ case FD_CONNECT:
+ {
+ if (WSAGETSELECTERROR(lParam) != 0)
+ event = GSOCK_LOST;
+ else
+ event = GSOCK_CONNECTION;
+ break;
+ }
case FD_CLOSE: event = GSOCK_LOST; break;
}
if (event != -1)
+ {
cback = socket->m_cbacks[event];
+ data = socket->m_data[event];
+
+ if (event == GSOCK_LOST)
+ socket->m_detected = GSOCK_LOST_FLAG;
+ else
+ socket->m_detected |= (1 << event);
+ }
}
/* OK, we can now leave the critical section because we have
LeaveCriticalSection(&critical);
if (cback != NULL)
- (cback)(socket, event, socket->m_data[event]);
+ (cback)(socket, event, data);
return (LRESULT) 0;
}
{
fd_set readfds;
- if (socket->m_non_blocking == FALSE)
+ if (!socket->m_non_blocking)
{
FD_ZERO(&readfds);
FD_SET(socket->m_fd, &readfds);
{
fd_set writefds;
- if (socket->m_non_blocking == FALSE)
+ if (!socket->m_non_blocking)
{
FD_ZERO(&writefds);
FD_SET(socket->m_fd, &writefds);
int _GSocket_Recv_Stream(GSocket *socket, char *buffer, int size)
{
- int ret;
-
- ret = recv(socket->m_fd, buffer, size, 0);
-
- if (ret == SOCKET_ERROR)
- {
- if (WSAGetLastError() != WSAEWOULDBLOCK)
- socket->m_error = GSOCK_IOERR;
- else
- socket->m_error = GSOCK_WOULDBLOCK;
-
- return -1;
- }
-
- return ret;
+ return recv(socket->m_fd, buffer, size, 0);
}
int _GSocket_Recv_Dgram(GSocket *socket, char *buffer, int size)
{
struct sockaddr from;
- SOCKLEN_T fromlen;
+ SOCKLEN_T fromlen = sizeof(from);
int ret;
- fromlen = sizeof(from);
-
ret = recvfrom(socket->m_fd, buffer, size, 0, &from, &fromlen);
if (ret == SOCKET_ERROR)
- {
- if (WSAGetLastError() != WSAEWOULDBLOCK)
- socket->m_error = GSOCK_IOERR;
- else
- socket->m_error = GSOCK_WOULDBLOCK;
-
- return -1;
- }
+ return SOCKET_ERROR;
/* Translate a system address into a GSocket address */
if (!socket->m_peer)
}
if (_GAddress_translate_from(socket->m_peer, &from, fromlen) != GSOCK_NOERROR)
{
- socket->m_error = GSOCK_MEMERR; /* TODO: bug in Unix GSocket! */
- GAddress_destroy(socket->m_peer); /* TODO: bug in Unix GSocket! */
+ socket->m_error = GSOCK_MEMERR;
+ GAddress_destroy(socket->m_peer);
return -1;
}
int _GSocket_Send_Stream(GSocket *socket, const char *buffer, int size)
{
- int ret;
-
- ret = send(socket->m_fd, buffer, size, 0);
-
- if (ret == SOCKET_ERROR)
- {
- if (WSAGetLastError() != WSAEWOULDBLOCK)
- socket->m_error = GSOCK_IOERR;
- else
- socket->m_error = GSOCK_WOULDBLOCK;
-
- return -1;
- }
- return ret;
+ return send(socket->m_fd, buffer, size, 0);
}
int _GSocket_Send_Dgram(GSocket *socket, const char *buffer, int size)
/* Frees memory allocated by _GAddress_translate_to */
free(addr);
- if (ret == SOCKET_ERROR)
- {
- if (WSAGetLastError() != WSAEWOULDBLOCK)
- socket->m_error = GSOCK_IOERR;
- else
- socket->m_error = GSOCK_WOULDBLOCK;
-
- return -1;
- }
return ret;
}
GSocketError _GAddress_Init_INET(GAddress *address)
{
+ address->m_len = sizeof(struct sockaddr_in);
address->m_addr = (struct sockaddr *) malloc(address->m_len);
if (address->m_addr == NULL)
{
return GSOCK_MEMERR;
}
- address->m_len = sizeof(struct sockaddr_in);
address->m_family = GSOCK_INET;
address->m_realfamily = PF_INET;
((struct sockaddr_in *)address->m_addr)->sin_family = AF_INET;
- ((struct sockaddr_in *)address->m_addr)->sin_addr.s_addr = INADDR_ANY;
+ ((struct sockaddr_in *)address->m_addr)->sin_addr.s_addr = INADDR_NONE;
return GSOCK_NOERROR;
}
addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
addr->s_addr = inet_addr(hostname);
-
+
/* If it is a numeric host name, convert it now */
if (addr->s_addr == INADDR_NONE)
{
address->m_error = GSOCK_INVPORT;
return GSOCK_INVOP;
}
-
+
se = getservbyname(port, protocol);
if (!se)
{
assert(address != NULL);
CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
-
+
addr = (struct sockaddr_in *)address->m_addr;
addr->sin_port = htons(port);
char *addr_buf;
struct sockaddr_in *addr;
- assert(address != NULL);
+ assert(address != NULL);
CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
addr = (struct sockaddr_in *)address->m_addr;
{
struct sockaddr_in *addr;
- assert(address != NULL);
- CHECK_ADDRESS(address, INET, 0);
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET, 0);
addr = (struct sockaddr_in *)address->m_addr;
{
struct sockaddr_in *addr;
- assert(address != NULL);
- CHECK_ADDRESS(address, INET, 0);
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET, 0);
addr = (struct sockaddr_in *)address->m_addr;
return ntohs(addr->sin_port);
return GSOCK_INVADDR;
}
+#else /* !wxUSE_SOCKETS */
-#endif /* !defined(__WXMSW__) || (defined(__WXMSW__) && wxUSE_SOCKETS) */
-
+/*
+ * translation unit shouldn't be empty, so include this typedef to make the
+ * compiler (VC++ 6.0, for example) happy
+ */
+typedef (*wxDummy)();
+#endif /* wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) */
/* Diferencias con la version Unix:
* - El descriptor es SOCKET y no int
* - inet_addr en lugar de inet_aton
* - Codigo de inicializacion y terminacion para inicializar y
* terminar WinSocket y para la ventana interna.
- * - SetTimeout en la version MSW simplemente guarda el valor en
- * socket.m_timeout, por tanto no hay necesidad de llamar a
- * SetTimeout cada vez que se crea realmente un socket (no
- * un gsocket).
- * - Lo mismo para SetNonBlocking.
+ * - SetTimeout, SetNonBlocking y la implementacion de los
+ * timeouts eran bastante diferentes, pero ahora se han
+ * hecho en la version Unix igual que en esta.
*/
projects / wxWidgets.git / blobdiff