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-rw-r--r--win/tclWinSock.c162
1 files changed, 110 insertions, 52 deletions
diff --git a/win/tclWinSock.c b/win/tclWinSock.c
index 33eddd5..0ea8f04 100644
--- a/win/tclWinSock.c
+++ b/win/tclWinSock.c
@@ -170,7 +170,8 @@ struct SocketInfo {
struct addrinfo *myaddr; /* Iterator over myaddrlist. */
int status; /* Cache status of async socket. */
int cachedBlocking; /* Cache blocking mode of async socket. */
- int lastError; /* Error code from last message. */
+ int lastError; /* Error code from notifier thread. */
+ int connectError; /* Error code from failed async connect. */
struct SocketInfo *nextPtr; /* The next socket on the per-thread socket
* list. */
};
@@ -243,7 +244,8 @@ static LRESULT CALLBACK SocketProc(HWND hwnd, UINT message, WPARAM wParam,
LPARAM lParam);
static int SocketsEnabled(void);
static void TcpAccept(TcpFdList *fds, SOCKET newSocket, address addr);
-static int WaitForConnect(SocketInfo *infoPtr, int *errorCodePtr);
+static int WaitForConnect(SocketInfo *infoPtr, int *errorCodePtr,
+ int terminate_connect);
static int WaitForSocketEvent(SocketInfo *infoPtr, int events,
int *errorCodePtr);
static int FindFDInList(SocketInfo *infoPtr, SOCKET socket);
@@ -778,9 +780,13 @@ SocketEventProc(
infoPtr->readyEvents &= ~(FD_CONNECT);
DEBUG("FD_CONNECT");
if ( infoPtr->flags & SOCKET_REENTER_PENDING ) {
+ /* free list lock */
SetEvent(tsdPtr->socketListLock);
- CreateClientSocket(NULL, infoPtr);
- return 1;
+ /* Do one connect step */
+ if (TCL_OK != CreateClientSocket(NULL, infoPtr) ) {
+ /* On final fail save error for fconfigure -error */
+ infoPtr->connectError = Tcl_GetErrno();
+ }
}
}
@@ -1393,41 +1399,65 @@ CreateClientSocket(
}
out:
+ /*
+ * Socket connected or connection failed
+ */
DEBUG("connected or finally failed");
/* Clear async flag (not really necessary, not used any more) */
infoPtr->flags &= ~(SOCKET_ASYNC_CONNECT);
- if ( Tcl_GetErrno() != 0 ) {
+
+ /*
+ * Final connect failure
+ */
+
+ if ( Tcl_GetErrno() == 0 ) {
+ /*
+ * Succesfully connected
+ */
+ /*
+ * Set up the select mask for read/write events.
+ */
+ DEBUG("selectEvents = FD_READ | FD_WRITE | FD_CLOSE");
+ infoPtr->selectEvents = FD_READ | FD_WRITE | FD_CLOSE;
+
+ /*
+ * Register for interest in events in the select mask. Note that this
+ * automatically places the socket into non-blocking mode.
+ */
+
+ SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) SELECT,
+ (LPARAM) infoPtr);
+ } else {
+ /*
+ * Connect failed
+ */
DEBUG("ERRNO");
- if (interp != NULL) {
- Tcl_SetObjResult(interp, Tcl_ObjPrintf(
- "couldn't open socket: %s", Tcl_PosixError(interp)));
- }
+
/*
- * In the final error case inform fileevent that we failed
+ * For async connect schedule a writable event to report the fail.
*/
if (async_callback) {
- Tcl_NotifyChannel(infoPtr->channel, TCL_WRITABLE);
+ /*
+ * Set up the select mask for read/write events.
+ */
+ DEBUG("selectEvents = FD_WRITE for fail writable");
+ infoPtr->selectEvents = FD_WRITE;
+ /* get infoPtr lock */
+ WaitForSingleObject(tsdPtr->socketListLock, INFINITE);
+ /* Clear eventual connect flag */
+ infoPtr->readyEvents |= FD_WRITE;
+ /* Free list lock */
+ SetEvent(tsdPtr->socketListLock);
+ }
+ /*
+ * Error message on syncroneous connect
+ */
+ if (interp != NULL) {
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "couldn't open socket: %s", Tcl_PosixError(interp)));
}
return TCL_ERROR;
}
- /*
- * Set up the select mask for read/write events.
- */
- DEBUG("selectEvents = FD_READ | FD_WRITE | FD_CLOSE");
- infoPtr->selectEvents = FD_READ | FD_WRITE | FD_CLOSE;
-
- /*
- * Register for interest in events in the select mask. Note that this
- * automatically places the socket into non-blocking mode.
- */
-
- tsdPtr = TclThreadDataKeyGet(&dataKey);
- ioctlsocket(infoPtr->sockets->fd, (long) FIONBIO, &flag);
- SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) SELECT,
- (LPARAM) infoPtr);
- if (async_callback) {
- Tcl_NotifyChannel(infoPtr->channel, TCL_WRITABLE);
- }
return TCL_OK;
}
@@ -1436,15 +1466,20 @@ out:
*
* WaitForConnect --
*
- * Process an asyncroneous connect by gets/puts commands.
- * For blocking calls, terminate connect synchroneously.
- * For non blocking calls, do one asynchroneous step if possible.
+ * Process an asyncroneous connect by other commands (gets... ).
+ * Do one connect step if pending as if the event loop would run.
+ *
+ * Blocking commands may call in with terminate_connect to terminate
+ * the syncroneous connect syncroneously.
+ *
* This routine should only be called if flag SOCKET_REENTER_PENDING
* is set.
*
* Results:
- * Returns 1 on success or 0 on failure, with an error code in
+ * Returns 1 on success or 0 on failure, with a possix error code in
* errorCodePtr.
+ * If the connect is not terminated, errorCode is set to EWOULDBLOCK
+ * and 0 is returned.
*
* Side effects:
* Processes socket events off the system queue.
@@ -1456,7 +1491,8 @@ out:
static int
WaitForConnect(
SocketInfo *infoPtr, /* Information about this socket. */
- int *errorCodePtr) /* Where to store errors? */
+ int *errorCodePtr, /* Where to store errors? */
+ int terminate_connect) /* Should the connect be terminated? */
{
int result;
int oldMode;
@@ -1483,7 +1519,7 @@ WaitForConnect(
* For blocking sockets disable async connect
* as we continue now synchoneously
*/
- if (! ( infoPtr->flags & TCP_ASYNC_SOCKET ) ) {
+ if ( terminate_connect ) {
infoPtr->flags &= ~(SOCKET_ASYNC_CONNECT);
}
@@ -1516,7 +1552,7 @@ WaitForConnect(
* A non blocking socket waiting for an asyncronous connect
* returns directly an error
*/
- if ( infoPtr->flags & TCP_ASYNC_SOCKET ) {
+ if ( ! terminate_connect ) {
*errorCodePtr = EWOULDBLOCK;
return 0;
}
@@ -2068,11 +2104,14 @@ TcpInputProc(
}
/*
- * Check if there is an async connect to terminate
+ * Check if there is an async connect running.
+ * For blocking sockets terminate connect, otherwise do one step.
+ * For a non blocking socket return EWOULDBLOCK if connect not terminated
*/
if ( (infoPtr->flags & SOCKET_REENTER_PENDING)
- && !WaitForConnect(infoPtr, errorCodePtr)) {
+ && !WaitForConnect(infoPtr, errorCodePtr,
+ ! ( infoPtr->flags & TCP_ASYNC_SOCKET ))) {
return -1;
}
@@ -2196,11 +2235,14 @@ TcpOutputProc(
}
/*
- * Check if there is an async connect to terminate
+ * Check if there is an async connect running.
+ * For blocking sockets terminate connect, otherwise do one step.
+ * For a non blocking socket return EWOULDBLOCK if connect not terminated
*/
if ( (infoPtr->flags & SOCKET_REENTER_PENDING)
- && !WaitForConnect(infoPtr, errorCodePtr)) {
+ && !WaitForConnect(infoPtr, errorCodePtr,
+ ! ( infoPtr->flags & TCP_ASYNC_SOCKET ))) {
return -1;
}
@@ -2418,28 +2460,44 @@ TcpGetOptionProc(
if ((len > 1) && (optionName[1] == 'e') &&
(strncmp(optionName, "-error", len) == 0)) {
- DWORD err;
- /*
- * Check if an asyncroneous connect is running
- * and return ok
- */
- if (infoPtr->flags & SOCKET_REENTER_PENDING) {
- err = 0;
+
+ if ( (infoPtr->flags & SOCKET_REENTER_PENDING) ) {
+
+ /*
+ * Asyncroneous connect is running.
+ * Process it one step without blocking.
+ * Return its error or nothing if connect not
+ * terminated.
+ */
+
+ int errorCode;
+ if (!WaitForConnect(infoPtr, &errorCode, 0)
+ && errorCode != EWOULDBLOCK) {
+ /* connect terminated with error */
+ Tcl_DStringAppend(dsPtr, Tcl_ErrnoMsg(errorCode), -1);
+ }
+ } else if (infoPtr->connectError != 0) {
+ /*
+ * An async connect error was not jet reported.
+ */
+ Tcl_DStringAppend(dsPtr, Tcl_ErrnoMsg(infoPtr->connectError), -1);
+ infoPtr->connectError = 0;
} else {
int optlen;
int ret;
+ DWORD err;
optlen = sizeof(int);
ret = TclWinGetSockOpt(sock, SOL_SOCKET, SO_ERROR,
(char *)&err, &optlen);
if (ret == SOCKET_ERROR) {
err = WSAGetLastError();
+ if (err) {
+ TclWinConvertError(err);
+ Tcl_DStringAppend(dsPtr, Tcl_ErrnoMsg(Tcl_GetErrno()), -1);
+ }
}
}
- if (err) {
- TclWinConvertError(err);
- Tcl_DStringAppend(dsPtr, Tcl_ErrnoMsg(Tcl_GetErrno()), -1);
- }
return TCL_OK;
}
@@ -2971,7 +3029,7 @@ FindFDInList(
TcpFdList *fds;
for (fds = infoPtr->sockets; fds != NULL; fds = fds->next) {
#ifdef DEBUGGING
- fprintf(stderr,"socket = %d, fd=%d",socket,fds);
+ fprintf(stderr,"socket = %d, fd=%d\n",socket,fds);
#endif
if (fds->fd == socket) {
return 1;
generated by cgit v0.12 at 2024-11-19 04:06:33 (GMT)