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3d640cfc403ebc5cd96c95f325057b709550c4d1
wxWidgets/src/mac/carbon/gsocket.c
Stefan Csomor 3d640cfc40 added network-to-host noops 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26935 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2004-04-23 12:24:55 +00:00

1661 lines
42 KiB
C
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/* -------------------------------------------------------------------------
* Project: GSocket (Generic Socket) for WX
* Name: gsocket.c
* Authors: Guilhem Lavaux,
* Guillermo Rodriguez Garcia <guille@iies.es> (maintainer)
* Stefan CSomor
* Purpose: GSocket main mac file
* CVSID: $Id$
* -------------------------------------------------------------------------
*/
/*
* PLEASE don't put C++ comments here - this is a C source file.
*/
#ifndef __GSOCKET_STANDALONE__
#include "wx/setup.h"
#include "wx/platform.h"
#endif
#if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__)
#ifdef __DARWIN__
#include <CoreServices/CoreServices.h>
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
#else
#include <MacHeaders.c>
#define OTUNIXERRORS 1
#include <OpenTransport.h>
#include <OpenTransportProviders.h>
#include <OpenTptInternet.h>
#endif
#if TARGET_CARBON && !defined(OTAssert)
#define OTAssert( str , cond ) /* does not exists in Carbon */
#endif
#include <assert.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <ctype.h>
#include <utime.h>
/*
* INADDR_BROADCAST is identical to INADDR_NONE which is not defined
* on all unices. INADDR_BROADCAST should be fine to indicate an error.
*/
#ifndef INADDR_BROADCAST
#define INADDR_BROADCAST 0xFFFFFFFFUL
#endif
#ifndef INADDR_NONE
#define INADDR_NONE INADDR_BROADCAST
#endif
#ifndef INADDR_ANY
#define INADDR_ANY 0x0UL
#endif
#ifndef __GSOCKET_STANDALONE__
#include "wx/mac/macnotfy.h"
#include "wx/mac/gsockmac.h"
#include "wx/gsocket.h"
#else
#include "gsockmac.h"
#include "gsocket.h"
#endif /* __GSOCKET_STANDALONE__ */
#ifndef ntohl
#define ntohl(x) (x)
#define ntohs(x) (x)
#define htonl(x) (x)
#define htons(x) (x)
#endif
void wxCYield() ;
#ifdef __WXDEBUG__
#define qDebug 1
#define qDebug2 1
extern pascal void OTDebugStr(const char* str);
#endif
#ifndef __DARWIN__
#include <OTDebug.h>
#endif
InetSvcRef gInetSvcRef = 0 ;
int gOTInited = 0 ;
OTNotifyUPP gOTNotifierUPP = NULL ;
OSStatus DoNegotiateIPReuseAddrOption(EndpointRef ep, Boolean enableReuseIPMode);
/* Input: ep - endpointref on which to negotiate the option
enableReuseIPMode - desired option setting - true/false
Return: kOTNoError indicates that the option was successfully negotiated
OSStatus is an error if < 0, otherwise, the status field is
returned and is > 0.
IMPORTANT NOTE: The endpoint is assumed to be in synchronous more, otherwise
this code will not function as desired
*/
OSStatus DoNegotiateIPReuseAddrOption(EndpointRef ep, Boolean enableReuseIPMode)
{
UInt8 buf[kOTFourByteOptionSize]; // define buffer for fourByte Option size
TOption* opt; // option ptr to make items easier to access
TOptMgmt req;
TOptMgmt ret;
OSStatus err;
if (!OTIsSynchronous(ep))
{
return (-1);
}
opt = (TOption*)buf; // set option ptr to buffer
req.opt.buf = buf;
req.opt.len = sizeof(buf);
req.flags = T_NEGOTIATE; // negotiate for option
ret.opt.buf = buf;
ret.opt.maxlen = kOTFourByteOptionSize;
opt->level = INET_IP; // dealing with an IP Level function
#ifdef __DARWIN__
opt->name = kIP_REUSEADDR;
#else
opt->name = IP_REUSEADDR;
#endif
opt->len = kOTFourByteOptionSize;
opt->status = 0;
*(UInt32*)opt->value = enableReuseIPMode; // set the desired option level, true or false
err = OTOptionManagement(ep, &req, &ret);
// if no error then return the option status value
if (err == kOTNoError)
{
if (opt->status != T_SUCCESS)
err = opt->status;
else
err = kOTNoError;
}
return err;
}
pascal void OTInetEventHandler(void*s, OTEventCode event, OTResult, void *cookie) ;
pascal void OTInetEventHandler(void*s, OTEventCode event, OTResult result, void *cookie)
{
int wakeUp = true ;
GSocket* sock = (GSocket*) s ;
if ( event == kOTSyncIdleEvent )
{
YieldToAnyThread() ;
return ;
}
if ( s )
{
wxMacAddEvent( sock->m_mac_events , _GSocket_Internal_Proc , event , s , wakeUp ) ;
}
return;
}
static void SetDefaultEndpointModes(EndpointRef ep , void *data )
// This routine sets the supplied endpoint into the default
// mode used in this application. The specifics are:
// blocking, synchronous, and using synch idle events with
// the standard YieldingNotifier.
{
OSStatus junk = kOTNoError ;
OTAssert ("SetDefaultEndpointModes:invalid ref", ep != kOTInvalidEndpointRef ) ;
junk = OTSetAsynchronous(ep);
OTAssert("SetDefaultEndpointModes: Could not set asynchronous", junk == noErr);
/*
junk = OTSetBlocking(ep);
OTAssert("SetDefaultEndpointModes: Could not set blocking", junk == noErr);
junk = OTSetSynchronous(ep);
OTAssert("SetDefaultEndpointModes: Could not set synchronous", junk == noErr);
junk = OTSetBlocking(ep);
OTAssert("SetDefaultEndpointModes: Could not set blocking", junk == noErr);
*/
junk = OTInstallNotifier(ep, gOTNotifierUPP, data);
OTAssert("SetDefaultEndpointModes: Could not install notifier", junk == noErr);
/*
junk = OTUseSyncIdleEvents(ep, true);
OTAssert("SetDefaultEndpointModes: Could not use sync idle events", junk == noErr);
*/
}
/* Global initialisers */
void GSocket_SetGUIFunctions(struct GSocketGUIFunctionsTable *table)
{
// do nothing, wxMac doesn't have wxBase-GUI separation yet
}
int GSocket_Init()
{
return TRUE;
}
int GSocket_Verify_Inited() ;
int GSocket_Verify_Inited()
{
OSStatus err ;
#if TARGET_CARBON
// Marc Newsam: added the clientcontext variable
// however, documentation is unclear how this works
OTClientContextPtr clientcontext;
if ( gInetSvcRef )
return TRUE ;
InitOpenTransportInContext(kInitOTForApplicationMask, &clientcontext);
gOTInited = 1 ;
gInetSvcRef = OTOpenInternetServicesInContext(kDefaultInternetServicesPath,
NULL, &err, clientcontext);
#else
if ( gInetSvcRef )
return TRUE ;
InitOpenTransport() ;
gOTInited = 1 ;
gInetSvcRef = OTOpenInternetServices(kDefaultInternetServicesPath, NULL, &err);
#endif
if ( gInetSvcRef == NULL || err != kOTNoError )
{
OTAssert("Could not open Inet Services", err == noErr);
return FALSE ;
}
gOTNotifierUPP = NewOTNotifyUPP( OTInetEventHandler ) ;
return TRUE ;
}
void GSocket_Cleanup()
{
if ( gOTInited != 0 )
{
if ( gInetSvcRef != NULL )
OTCloseProvider( gInetSvcRef );
#if TARGET_CARBON
CloseOpenTransportInContext( NULL ) ;
#else
CloseOpenTransport() ;
#endif
if ( gOTNotifierUPP )
DisposeOTNotifyUPP( gOTNotifierUPP ) ;
}
}
/* Constructors / Destructors for GSocket */
GSocket *GSocket_new()
{
int i;
GSocket *socket;
if ( GSocket_Verify_Inited() == FALSE )
return NULL ;
socket = (GSocket *)malloc(sizeof(GSocket));
if (socket == NULL)
return NULL;
socket->m_endpoint = NULL ;
for (i=0;i<GSOCK_MAX_EVENT;i++)
{
socket->m_cbacks[i] = NULL;
}
socket->m_detected = 0;
socket->m_local = NULL;
socket->m_peer = NULL;
socket->m_error = GSOCK_NOERROR;
socket->m_server = FALSE;
socket->m_stream = TRUE;
socket->m_non_blocking = FALSE;
socket->m_timeout = 1*1000;
/* 10 sec * 1000 millisec */
socket->m_takesEvents = TRUE ;
socket->m_mac_events = wxMacGetNotifierTable() ;
return socket;
}
void GSocket_destroy(GSocket *socket)
{
assert(socket != NULL);
/* Check that the socket is really shutdowned */
if (socket->m_endpoint != kOTInvalidEndpointRef)
GSocket_Shutdown(socket);
/* Destroy private addresses */
if (socket->m_local)
GAddress_destroy(socket->m_local);
if (socket->m_peer)
GAddress_destroy(socket->m_peer);
/* Destroy the socket itself */
free(socket);
}
/* GSocket_Shutdown:
* Disallow further read/write operations on this socket, close
* the fd and disable all callbacks.
*/
void GSocket_Shutdown(GSocket *socket)
{
OSStatus err ;
int evt;
assert(socket != NULL);
/* If socket has been created, shutdown it */
if (socket->m_endpoint != kOTInvalidEndpointRef )
{
err = OTSndOrderlyDisconnect( socket->m_endpoint ) ;
if ( err != kOTNoError )
{
}
err = OTRcvOrderlyDisconnect( socket->m_endpoint ) ;
err = OTUnbind( socket->m_endpoint ) ;
err = OTCloseProvider( socket->m_endpoint ) ;
socket->m_endpoint = kOTInvalidEndpointRef ;
}
/* Disable GUI callbacks */
for (evt = 0; evt < GSOCK_MAX_EVENT; evt++)
socket->m_cbacks[evt] = NULL;
socket->m_detected = 0;
_GSocket_Disable_Events(socket);
wxMacRemoveAllNotifiersForData( wxMacGetNotifierTable() , socket ) ;
}
/* Address handling */
/* GSocket_SetLocal:
* GSocket_GetLocal:
* GSocket_SetPeer:
* GSocket_GetPeer:
* Set or get the local or peer address for this socket. The 'set'
* functions return GSOCK_NOERROR on success, an error code otherwise.
* The 'get' functions return a pointer to a GAddress object on success,
* or NULL otherwise, in which case they set the error code of the
* corresponding GSocket.
*
* Error codes:
* GSOCK_INVSOCK - the socket is not valid.
* GSOCK_INVADDR - the address is not valid.
*/
GSocketError GSocket_SetLocal(GSocket *socket, GAddress *address)
{
assert(socket != NULL);
/* the socket must be initialized, or it must be a server */
if ((socket->m_endpoint != kOTInvalidEndpointRef && !socket->m_server))
{
socket->m_error = GSOCK_INVSOCK;
return GSOCK_INVSOCK;
}
/* check address */
if (address == NULL || address->m_family == GSOCK_NOFAMILY)
{
socket->m_error = GSOCK_INVADDR;
return GSOCK_INVADDR;
}
if (socket->m_local)
GAddress_destroy(socket->m_local);
socket->m_local = GAddress_copy(address);
return GSOCK_NOERROR;
}
GSocketError GSocket_SetPeer(GSocket *socket, GAddress *address)
{
assert(socket != NULL);
/* check address */
if (address == NULL || address->m_family == GSOCK_NOFAMILY)
{
socket->m_error = GSOCK_INVADDR;
return GSOCK_INVADDR;
}
if (socket->m_peer)
GAddress_destroy(socket->m_peer);
socket->m_peer = GAddress_copy(address);
return GSOCK_NOERROR;
}
GAddress *GSocket_GetLocal(GSocket *socket)
{
GAddress *address = NULL ;
GSocketError err;
InetAddress loc ;
assert(socket != NULL);
/* try to get it from the m_local var first */
if (socket->m_local)
return GAddress_copy(socket->m_local);
/* else, if the socket is initialized, try getsockname */
if (socket->m_endpoint == kOTInvalidEndpointRef)
{
socket->m_error = GSOCK_INVSOCK;
return NULL;
}
/* we do not support multihoming with this code at the moment
OTGetProtAddress will have to be used then - but we don't have a handy
method to use right now
*/
{
InetInterfaceInfo info;
OTInetGetInterfaceInfo(&info, kDefaultInetInterface);
loc.fHost = info.fAddress ;
loc.fPort = 0 ;
loc.fAddressType = AF_INET ;
}
/* got a valid address from getsockname, create a GAddress object */
address = GAddress_new();
if (address == NULL)
{
socket->m_error = GSOCK_MEMERR;
return NULL;
}
err = _GAddress_translate_from(address, &loc);
if (err != GSOCK_NOERROR)
{
GAddress_destroy(address);
socket->m_error = err;
return NULL;
}
return address;
}
GAddress *GSocket_GetPeer(GSocket *socket)
{
assert(socket != NULL);
/* try to get it from the m_peer var */
if (socket->m_peer)
return GAddress_copy(socket->m_peer);
return NULL;
}
/* Server specific parts */
/* GSocket_SetServer:
* 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.
* GSOCK_IOERR - low-level error.
*/
GSocketError GSocket_SetServer(GSocket *sck)
{
assert(sck != NULL);
/* must not be in use */
if (sck->m_endpoint != kOTInvalidEndpointRef )
{
sck->m_error = GSOCK_INVSOCK;
return GSOCK_INVSOCK;
}
/* the local addr must have been set */
if (!sck->m_local)
{
sck->m_error = GSOCK_INVADDR;
return GSOCK_INVADDR;
}
/* Initialize all fields */
sck->m_stream = TRUE;
sck->m_server = TRUE;
sck->m_oriented = TRUE;
// TODO
#if 0
/* Create the socket */
sck->m_endpoint = socket(sck->m_local->m_realfamily, SOCK_STREAM, 0);
socket_set_ref( sck->m_endpoint , (unsigned long) &gMacNetEvents , (unsigned long) sck ) ;
if (sck->m_endpoint == kOTInvalidEndpointRef)
{
sck->m_error = GSOCK_IOERR;
return GSOCK_IOERR;
}
ioctl(sck->m_endpoint, FIONBIO, &arg);
_GSocket_Enable_Events(sck);
/* Bind to the local address,
* retrieve the actual address bound,
* and listen up to 5 connections.
*/
if ((bind(sck->m_endpoint, sck->m_local->m_addr, sck->m_local->m_len) != 0) ||
(getsockname(sck->m_endpoint,
sck->m_local->m_addr,
(SOCKLEN_T *) &sck->m_local->m_len) != 0) ||
(listen(sck->m_endpoint, 5) != 0))
{
close(sck->m_endpoint);
sck->m_endpoint = -1;
sck->m_error = GSOCK_IOERR;
return GSOCK_IOERR;
}
#endif
return GSOCK_NOERROR;
}
/* GSocket_WaitConnection:
* Waits for an incoming client connection. Returns a pointer to
* a GSocket object, or NULL if there was an error, in which case
* the last error field will be updated for the calling GSocket.
*
* Error codes (set in the calling GSocket)
* GSOCK_INVSOCK - the socket is not valid or not a server.
* 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.
*/
GSocket *GSocket_WaitConnection(GSocket *socket)
{
GSocket *connection = NULL ;
assert(socket != NULL);
/* Reenable CONNECTION events */
socket->m_detected &= ~GSOCK_CONNECTION_FLAG;
/* If the socket has already been created, we exit immediately */
if (socket->m_endpoint == kOTInvalidEndpointRef || !socket->m_server)
{
socket->m_error = GSOCK_INVSOCK;
return NULL;
}
/* Create a GSocket object for the new connection */
connection = GSocket_new();
if (!connection)
{
socket->m_error = GSOCK_MEMERR;
return NULL;
}
/* Wait for a connection (with timeout) */
if (_GSocket_Input_Timeout(socket) == GSOCK_TIMEDOUT)
{
GSocket_destroy(connection);
/* socket->m_error set by _GSocket_Input_Timeout */
return NULL;
}
// TODO
#if 0
connection->m_endpoint = accept(socket->m_endpoint, &from, (SOCKLEN_T *) &fromlen);
#endif
if (connection->m_endpoint == kOTInvalidEndpointRef )
{
if (errno == EWOULDBLOCK)
socket->m_error = GSOCK_WOULDBLOCK;
else
socket->m_error = GSOCK_IOERR;
GSocket_destroy(connection);
return NULL;
}
/* 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();
if (!connection->m_peer)
{
GSocket_destroy(connection);
socket->m_error = GSOCK_MEMERR;
return NULL;
}
// TODO
#if 0
err = _GAddress_translate_from(connection->m_peer, &from, fromlen);
if (err != GSOCK_NOERROR)
{
GAddress_destroy(connection->m_peer);
GSocket_destroy(connection);
socket->m_error = err;
return NULL;
}
ioctl(connection->m_endpoint, FIONBIO, &arg);
#endif
_GSocket_Enable_Events(connection);
return connection;
}
/* Datagram sockets */
/* GSocket_SetNonOriented:
* Sets up this socket as a non-connection oriented (datagram) socket.
* Before using this function, the local address must have been set
* with GSocket_SetLocal(), or the call will fail. Returns GSOCK_NOERROR
* on success, or one of the following otherwise.
*
* Error codes:
* GSOCK_INVSOCK - the socket is in use.
* GSOCK_INVADDR - the local address has not been set.
* GSOCK_IOERR - low-level error.
*/
GSocketError GSocket_SetNonOriented(GSocket *sck)
{
assert(sck != NULL);
if (sck->m_endpoint != kOTInvalidEndpointRef )
{
sck->m_error = GSOCK_INVSOCK;
return GSOCK_INVSOCK;
}
if (!sck->m_local)
{
sck->m_error = GSOCK_INVADDR;
return GSOCK_INVADDR;
}
/* Initialize all fields */
sck->m_stream = FALSE;
sck->m_server = FALSE;
sck->m_oriented = FALSE;
/* Create the socket */
// TODO
#if 0
sck->m_endpoint = socket(sck->m_local->m_realfamily, SOCK_DGRAM, 0);
socket_set_ref( sck->m_endpoint , (unsigned long) &gMacNetEvents , (unsigned long) sck ) ;
#endif
if (sck->m_endpoint == kOTInvalidEndpointRef )
{
sck->m_error = GSOCK_IOERR;
return GSOCK_IOERR;
}
// TODO
#if 0
ioctl(sck->m_endpoint, FIONBIO, &arg);
#endif
_GSocket_Enable_Events(sck);
/* Bind to the local address,
* and retrieve the actual address bound.
*/
// TODO
#if 0
if ((bind(sck->m_endpoint, sck->m_local->m_addr, sck->m_local->m_len) != 0) ||
(getsockname(sck->m_endpoint,
sck->m_local->m_addr,
(SOCKLEN_T *) &sck->m_local->m_len) != 0))
{
close(sck->m_endpoint);
sck->m_endpoint = -1;
sck->m_error = GSOCK_IOERR;
return GSOCK_IOERR;
}
#endif
return GSOCK_NOERROR;
}
/* Client specific parts */
/* GSocket_Connect:
* For stream (connection oriented) sockets, GSocket_Connect() tries
* to establish a client connection to a server using the peer address
* as established with GSocket_SetPeer(). Returns GSOCK_NOERROR if the
* connection has been succesfully established, or one of the error
* codes listed below. Note that for nonblocking sockets, a return
* value of GSOCK_WOULDBLOCK doesn't mean a failure. The connection
* request can be completed later; you should use GSocket_Select()
* to poll for GSOCK_CONNECTION | GSOCK_LOST, or wait for the
* corresponding asynchronous events.
*
* For datagram (non connection oriented) sockets, GSocket_Connect()
* just sets the peer address established with GSocket_SetPeer() as
* default destination.
*
* Error codes:
* GSOCK_INVSOCK - the socket is in use or not valid.
* GSOCK_INVADDR - the peer address has not been established.
* 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.
*/
GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream)
{
InetAddress addr ;
TEndpointInfo info;
OSStatus err = kOTNoError;
TCall peer ;
assert(sck != NULL);
/* Enable CONNECTION events (needed for nonblocking connections) */
sck->m_detected &= ~GSOCK_CONNECTION_FLAG;
if (sck->m_endpoint != kOTInvalidEndpointRef )
{
sck->m_error = GSOCK_INVSOCK;
return GSOCK_INVSOCK;
}
if (!sck->m_peer)
{
sck->m_error = GSOCK_INVADDR;
return GSOCK_INVADDR;
}
/* Streamed or dgram socket? */
sck->m_stream = (stream == GSOCK_STREAMED);
sck->m_oriented = TRUE;
sck->m_server = FALSE;
/* Create the socket */
#if TARGET_CARBON
sck->m_endpoint =
OTOpenEndpointInContext( OTCreateConfiguration( kTCPName) , 0 , &info , &err , NULL ) ;
#else
sck->m_endpoint =
OTOpenEndpoint( OTCreateConfiguration( kTCPName) , 0 , &info , &err ) ;
#endif
if ( sck->m_endpoint == kOTInvalidEndpointRef || err != kOTNoError )
{
sck->m_endpoint = kOTInvalidEndpointRef ;
sck->m_error = GSOCK_IOERR;
return GSOCK_IOERR;
}
err = OTBind( sck->m_endpoint , nil , nil ) ;
if ( err != kOTNoError )
{
return GSOCK_IOERR;
}
SetDefaultEndpointModes( sck->m_endpoint , sck ) ;
// TODO
#if 0
ioctl(sck->m_endpoint, FIONBIO, &arg);
#endif
_GSocket_Enable_Events(sck);
_GAddress_translate_to( sck->m_peer , &addr ) ;
memset( &peer , 0 , sizeof( TCall ) ) ;
peer.addr.len = sizeof( InetAddress ) ;
peer.addr.buf = (unsigned char*) &addr ;
err = OTConnect( sck->m_endpoint , &peer , nil ) ;
if ( err != noErr )
{
/* If connect failed with EINPROGRESS and the GSocket object
* is in blocking mode, we select() for the specified timeout
* checking for writability to see if the connection request
* completes.
*/
if ((err == kOTNoDataErr ) && (!sck->m_non_blocking))
{
if (_GSocket_Output_Timeout(sck) == GSOCK_TIMEDOUT)
{
OTSndOrderlyDisconnect( sck->m_endpoint ) ;
sck->m_endpoint = kOTInvalidEndpointRef ;
/* sck->m_error is set in _GSocket_Output_Timeout */
return GSOCK_TIMEDOUT;
}
else
{
/*
int error;
SOCKLEN_T len = sizeof(error);
getsockopt(sck->m_endpoint, SOL_SOCKET, SO_ERROR, (void*) &error, &len);
if (!error)
*/
return GSOCK_NOERROR;
}
}
/* If connect failed with EINPROGRESS and the GSocket object
* is set to nonblocking, we set m_error to GSOCK_WOULDBLOCK
* (and return GSOCK_WOULDBLOCK) but we don't close the socket;
* this way if the connection completes, a GSOCK_CONNECTION
* event will be generated, if enabled.
*/
if ((err == kOTNoDataErr) && (sck->m_non_blocking))
{
sck->m_error = GSOCK_WOULDBLOCK;
return GSOCK_WOULDBLOCK;
}
/* If connect failed with an error other than EINPROGRESS,
* then the call to GSocket_Connect has failed.
*/
OTSndOrderlyDisconnect( sck->m_endpoint ) ;
sck->m_endpoint = kOTInvalidEndpointRef ;
sck->m_error = GSOCK_IOERR;
return GSOCK_IOERR;
}
// OTInetEventHandler(sck, T_CONNECT , kOTNoError , NULL ) ;
return GSOCK_NOERROR;
}
/* Generic IO */
/* Like recv(), send(), ... */
int GSocket_Read(GSocket *socket, char *buffer, int size)
{
int ret = 0 ;
assert(socket != NULL);
/* Reenable INPUT events */
socket->m_detected &= ~GSOCK_INPUT_FLAG;
if (socket->m_endpoint == kOTInvalidEndpointRef || 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)
ret = _GSocket_Recv_Stream(socket, buffer, size);
else
ret = _GSocket_Recv_Dgram(socket, buffer, size);
if (ret == -1)
{
if (errno == EWOULDBLOCK)
socket->m_error = GSOCK_WOULDBLOCK;
else
socket->m_error = GSOCK_IOERR;
}
return ret;
}
int GSocket_Write(GSocket *socket, const char *buffer, int size)
{
int ret;
assert(socket != NULL);
if (socket->m_endpoint == kOTInvalidEndpointRef || socket->m_server)
{
socket->m_error = GSOCK_INVSOCK;
return -1;
}
/* If the socket is blocking, wait for writability (with a timeout) */
if (_GSocket_Output_Timeout(socket) == GSOCK_TIMEDOUT)
return -1;
/* Write the data */
if (socket->m_stream)
ret = _GSocket_Send_Stream(socket, buffer, size);
else
ret = _GSocket_Send_Dgram(socket, buffer, size);
if (ret == -1)
{
if (errno == EWOULDBLOCK)
socket->m_error = GSOCK_WOULDBLOCK;
else
socket->m_error = GSOCK_IOERR;
/* Only reenable OUTPUT events after an error (just like WSAAsyncSelect
* in MSW). Once the first OUTPUT event is received, users can assume
* that the socket is writable until a read operation fails. Only then
* will further OUTPUT events be posted.
*/
socket->m_detected &= ~GSOCK_OUTPUT_FLAG;
return -1;
}
return ret;
}
/* 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);
wxMacProcessNotifierEvents() ;
/*
state = OTGetEndpointState(socket->m_endpoint);
if ( ( flags & GSOCK_INPUT_FLAG ) && ! ( socket->m_detected & GSOCK_INPUT_FLAG ) )
{
size_t sz = 0 ;
OTCountDataBytes( socket->m_endpoint , &sz ) ;
if ( state == T_INCON || sz > 0 )
{
socket->m_detected |= GSOCK_INPUT_FLAG ;
(socket->m_cbacks[GSOCK_INPUT])(socket, GSOCK_INPUT, socket->m_data[GSOCK_INPUT]);
}
}
if ( ( flags & GSOCK_INPUT_FLAG ) && ! ( socket->m_detected & GSOCK_OUTPUT_FLAG ) )
{
if ( state == T_DATAXFER || state == T_INREL )
{
socket->m_detected |=GSOCK_OUTPUT_FLAG ;
(socket->m_cbacks[GSOCK_OUTPUT])(socket, GSOCK_OUTPUT, socket->m_data[GSOCK_OUTPUT]);
}
}
*/
return ( flags & socket->m_detected ) ;
}
/* Flags */
/* GSocket_SetNonBlocking:
* Sets the socket to non-blocking mode. All IO calls will return
* immediately.
*/
void GSocket_SetNonBlocking(GSocket *socket, int non_block)
{
assert(socket != NULL);
socket->m_non_blocking = non_block;
}
/* GSocket_SetTimeout:
* Sets the timeout for blocking calls. Time is expressed in
* milliseconds.
*/
void GSocket_SetTimeout(GSocket *socket, unsigned long millisec)
{
assert(socket != NULL);
// this is usually set too high and we have not yet been able to detect a closed
// stream, thus we leave the 10 sec timeout
// socket->m_timeout = millisec;
}
/* GSocket_GetError:
* Returns the last error occured for this socket. Note that successful
* operations do not clear this back to GSOCK_NOERROR, so use it only
* after an error.
*/
GSocketError GSocket_GetError(GSocket *socket)
{
assert(socket != NULL);
return socket->m_error;
}
/* Callbacks */
/* GSOCK_INPUT:
* There is data to be read in the input buffer. If, after a read
* 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
* 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
* assume that it can write since the first OUTPUT event, and no more
* OUTPUT events will be generated unless an error occurs.
* GSOCK_CONNECTION:
* Connection succesfully established, for client sockets, or incoming
* client connection, for server sockets. Wait for this event (also watch
* out for GSOCK_LOST) after you issue a nonblocking GSocket_Connect() call.
* GSOCK_LOST:
* The connection is lost (or a connection request failed); this could
* be due to a failure, or due to the peer closing it gracefully.
*/
/* GSocket_SetCallback:
* 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 flags,
GSocketCallback callback, char *cdata)
{
int count;
assert(socket != NULL);
for (count = 0; count < GSOCK_MAX_EVENT; count++)
{
if ((flags & (1 << count)) != 0)
{
socket->m_cbacks[count] = callback;
socket->m_data[count] = cdata;
}
}
}
/* GSocket_UnsetCallback:
* Disables all callbacks specified by 'flags', which may be a
* combination of flags OR'ed toghether.
*/
void GSocket_UnsetCallback(GSocket *socket, GSocketEventFlags flags)
{
int count;
assert(socket != NULL);
for (count = 0; count < GSOCK_MAX_EVENT; count++)
{
if ((flags & (1 << count)) != 0)
{
socket->m_cbacks[count] = NULL;
socket->m_data[count] = NULL;
}
}
}
#define CALL_CALLBACK(socket, event) { \
_GSocket_Disable(socket, event); \
if (socket->m_cbacks[event]) \
socket->m_cbacks[event](socket, event, socket->m_data[event]); \
}
int _GSocket_Recv_Stream(GSocket *socket, char *buffer, int size)
{
OTFlags flags ;
OTResult res ;
OTByteCount sz = 0 ;
OTCountDataBytes( socket->m_endpoint , &sz ) ;
if ( size > (int)sz )
size = sz ;
res = OTRcv( socket->m_endpoint , buffer , size , &flags ) ;
if ( res < 0 )
{
return -1 ;
}
// we simulate another read event if there are still bytes
if ( socket->m_takesEvents )
{
OTByteCount sz = 0 ;
OTCountDataBytes( socket->m_endpoint , &sz ) ;
if ( sz > 0 )
{
socket->m_detected |= GSOCK_INPUT_FLAG ;
(socket->m_cbacks[GSOCK_INPUT])(socket, GSOCK_INPUT, socket->m_data[GSOCK_INPUT]);
}
}
return res ;
}
int _GSocket_Recv_Dgram(GSocket *socket, char *buffer, int size)
{
// TODO
int ret = -1;
#if 0
struct sockaddr from;
SOCKLEN_T fromlen = sizeof(from);
GSocketError err;
fromlen = sizeof(from);
ret = recvfrom(socket->m_endpoint, buffer, size, 0, &from, (SOCKLEN_T *) &fromlen);
if (ret == -1)
return -1;
/* Translate a system address into a GSocket address */
if (!socket->m_peer)
{
socket->m_peer = GAddress_new();
if (!socket->m_peer)
{
socket->m_error = GSOCK_MEMERR;
return -1;
}
}
err = _GAddress_translate_from(socket->m_peer, &from, fromlen);
if (err != GSOCK_NOERROR)
{
GAddress_destroy(socket->m_peer);
socket->m_peer = NULL;
socket->m_error = err;
return -1;
}
#endif
return ret;
}
int _GSocket_Send_Stream(GSocket *socket, const char *buffer, int size)
{
OTFlags flags = 0 ;
OTResult res ;
res = OTSnd( socket->m_endpoint , (void*) buffer , size , flags ) ;
return res ;
}
int _GSocket_Send_Dgram(GSocket *socket, const char *buffer, int size)
{
int ret = -1 ;
// TODO
#if 0
struct sockaddr *addr;
int len ;
GSocketError err;
if (!socket->m_peer)
{
socket->m_error = GSOCK_INVADDR;
return -1;
}
err = _GAddress_translate_to(socket->m_peer, &addr, &len);
if (err != GSOCK_NOERROR)
{
socket->m_error = err;
return -1;
}
ret = sendto(socket->m_endpoint, buffer, size, 0, addr, len);
/* Frees memory allocated from _GAddress_translate_to */
free(addr);
#endif
return ret;
}
/*
* -------------------------------------------------------------------------
* GAddress
* -------------------------------------------------------------------------
*/
/* 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.
*/
#define CHECK_ADDRESS(address, family, retval) \
{ \
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 retval; \
} \
}
GAddress *GAddress_new()
{
GAddress *address;
if ((address = (GAddress *) malloc(sizeof(GAddress))) == NULL)
return NULL;
address->m_family = GSOCK_NOFAMILY;
address->m_host = INADDR_NONE ;
address->m_port = 0 ;
return address;
}
GAddress *GAddress_copy(GAddress *address)
{
GAddress *addr2;
assert(address != NULL);
if ((addr2 = (GAddress *) malloc(sizeof(GAddress))) == NULL)
return NULL;
memcpy(addr2, address, sizeof(GAddress));
return addr2;
}
void GAddress_destroy(GAddress *address)
{
assert(address != NULL);
free(address);
}
void GAddress_SetFamily(GAddress *address, GAddressType type)
{
assert(address != NULL);
address->m_family = type;
}
GAddressType GAddress_GetFamily(GAddress *address)
{
assert(address != NULL);
return address->m_family;
}
GSocketError _GAddress_translate_from(GAddress *address,
InetAddress *addr)
{
switch (addr->fAddressType)
{
case AF_INET:
address->m_family = GSOCK_INET;
break;
#ifdef AF_INET6
case AF_INET6:
address->m_family = GSOCK_INET6;
break;
#endif
default:
{
address->m_error = GSOCK_INVOP;
return GSOCK_INVOP;
}
}
address->m_host = addr->fHost ;
address->m_port = addr->fPort ;
return GSOCK_NOERROR;
}
GSocketError _GAddress_translate_to(GAddress *address,
InetAddress *addr)
{
if ( GSocket_Verify_Inited() == FALSE )
return GSOCK_IOERR ;
memset(addr, 0 , sizeof(struct InetAddress));
OTInitInetAddress( addr , address->m_port , address->m_host ) ;
return GSOCK_NOERROR;
}
/*
* -------------------------------------------------------------------------
* Internet address family
* -------------------------------------------------------------------------
*/
GSocketError _GAddress_Init_INET(GAddress *address)
{
address->m_family = GSOCK_INET;
address->m_host = kOTAnyInetAddress ;
return GSOCK_NOERROR;
}
GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname)
{
InetHostInfo hinfo ;
OSStatus ret ;
if ( GSocket_Verify_Inited() == FALSE )
return GSOCK_IOERR ;
assert(address != NULL);
CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
ret = OTInetStringToAddress( gInetSvcRef , (char*) hostname , &hinfo ) ;
if ( ret != kOTNoError )
{
address->m_host = INADDR_NONE ;
address->m_error = GSOCK_NOHOST;
return GSOCK_NOHOST;
}
address->m_host = hinfo.addrs[0] ;
return GSOCK_NOERROR;
}
GSocketError GAddress_INET_SetAnyAddress(GAddress *address)
{
return GAddress_INET_SetHostAddress(address, INADDR_ANY);
}
GSocketError GAddress_INET_SetHostAddress(GAddress *address,
unsigned long hostaddr)
{
assert(address != NULL);
CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
address->m_host = htonl(hostaddr) ;
return GSOCK_NOERROR;
}
struct service_entry
{
char * name ;
unsigned short port ;
char * protocol ;
} ;
typedef struct service_entry service_entry ;
service_entry gServices[] =
{
{ "http" , 80 , "tcp" }
} ;
GSocketError GAddress_INET_SetPortName(GAddress *address, const char *port,
const char *protocol)
{
size_t i ;
assert(address != NULL);
CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
if (!port)
{
address->m_error = GSOCK_INVPORT;
return GSOCK_INVPORT;
}
for ( i = 0 ; i < sizeof( gServices) / sizeof( service_entry ) ; ++i )
{
if ( strcmp( port , gServices[i].name ) == 0 )
{
if ( protocol == NULL || strcmp( protocol , gServices[i].protocol ) )
{
address->m_port = gServices[i].port ;
return GSOCK_NOERROR;
}
}
}
if (isdigit(port[0]))
{
address->m_port = atoi(port);
return GSOCK_NOERROR;
}
address->m_error = GSOCK_INVPORT;
return GSOCK_INVPORT;
}
GSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port)
{
assert(address != NULL);
CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
address->m_port = port ;
return GSOCK_NOERROR;
}
GSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname, size_t sbuf)
{
InetDomainName name ;
if ( GSocket_Verify_Inited() == FALSE )
return GSOCK_IOERR ;
assert(address != NULL);
CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
OTInetAddressToName( gInetSvcRef , address->m_host , name ) ;
strncpy( hostname , name , sbuf ) ;
return GSOCK_NOERROR;
}
unsigned long GAddress_INET_GetHostAddress(GAddress *address)
{
assert(address != NULL);
CHECK_ADDRESS(address, INET, 0);
return ntohl(address->m_host);
}
unsigned short GAddress_INET_GetPort(GAddress *address)
{
assert(address != NULL);
CHECK_ADDRESS(address, INET, 0);
return address->m_port;
}
void _GSocket_Enable_Events(GSocket *socket)
{
if ( socket->m_takesEvents )
return ;
{
OTResult state ;
socket->m_takesEvents = TRUE ;
state = OTGetEndpointState(socket->m_endpoint);
{
OTByteCount sz = 0 ;
OTCountDataBytes( socket->m_endpoint , &sz ) ;
if ( state == T_INCON || sz > 0 )
{
socket->m_detected |= GSOCK_INPUT_FLAG ;
(socket->m_cbacks[GSOCK_INPUT])(socket, GSOCK_INPUT, socket->m_data[GSOCK_INPUT]);
}
}
{
if ( state == T_DATAXFER || state == T_INREL )
{
socket->m_detected |=GSOCK_OUTPUT_FLAG ;
(socket->m_cbacks[GSOCK_OUTPUT])(socket, GSOCK_OUTPUT, socket->m_data[GSOCK_OUTPUT]);
}
}
}
}
void _GSocket_Disable_Events(GSocket *socket)
{
socket->m_takesEvents = FALSE ;
}
/* _GSocket_Input_Timeout:
* For blocking sockets, wait until data is available or
* until timeout ellapses.
*/
GSocketError _GSocket_Input_Timeout(GSocket *socket)
{
if ( !socket->m_non_blocking )
{
UnsignedWide now , start ;
short formerTakesEvents = socket->m_takesEvents ;
Microseconds(&start);
now = start ;
socket->m_takesEvents = FALSE ;
while( (now.hi * 4294967296.0 + now.lo) - (start.hi * 4294967296.0 + start.lo) < socket->m_timeout * 1000.0 )
{
OTResult state ;
OTByteCount sz = 0 ;
state = OTGetEndpointState(socket->m_endpoint);
OTCountDataBytes( socket->m_endpoint , &sz ) ;
if ( state == T_INCON || sz > 0 )
{
socket->m_takesEvents = formerTakesEvents ;
return GSOCK_NOERROR;
}
Microseconds(&now);
}
socket->m_takesEvents = formerTakesEvents ;
socket->m_error = GSOCK_TIMEDOUT;
return GSOCK_TIMEDOUT;
}
return GSOCK_NOERROR;
}
/* _GSocket_Output_Timeout:
* For blocking sockets, wait until data can be sent without
* blocking or until timeout ellapses.
*/
GSocketError _GSocket_Output_Timeout(GSocket *socket)
{
if ( !socket->m_non_blocking )
{
UnsignedWide now , start ;
short formerTakesEvents = socket->m_takesEvents ;
Microseconds(&start);
now = start ;
socket->m_takesEvents = FALSE ;
while( (now.hi * 4294967296.0 + now.lo) - (start.hi * 4294967296.0 + start.lo) < socket->m_timeout * 1000.0 )
{
OTResult state ;
state = OTGetEndpointState(socket->m_endpoint);
if ( state == T_DATAXFER || state == T_INREL )
{
socket->m_takesEvents = formerTakesEvents ;
return GSOCK_NOERROR;
}
Microseconds(&now);
}
socket->m_takesEvents = formerTakesEvents ;
socket->m_error = GSOCK_TIMEDOUT;
return GSOCK_TIMEDOUT;
}
return GSOCK_NOERROR;
}
/* GSOCK_INPUT:
* There is data to be read in the input buffer. If, after a read
* 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
* 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
* assume that it can write since the first OUTPUT event, and no more
* OUTPUT events will be generated unless an error occurs.
* GSOCK_CONNECTION:
* Connection succesfully established, for client sockets, or incoming
* client connection, for server sockets. Wait for this event (also watch
* out for GSOCK_LOST) after you issue a nonblocking GSocket_Connect() call.
* GSOCK_LOST:
* The connection is lost (or a connection request failed); this could
* be due to a failure, or due to the peer closing it gracefully.
*/
void _GSocket_Internal_Proc(unsigned long e , void* d )
{
GSocket * socket = (GSocket*) d ;
OTEventCode ev = (OTEventCode) e ;
GSocketEvent event;
GSocketEvent event2;
GSocketCallback cback;
char *data;
GSocketCallback cback2;
char *data2;
if ( !socket )
return ;
event = GSOCK_MAX_EVENT ;
event2 = GSOCK_MAX_EVENT ;
cback = NULL;
data = NULL;
cback2 = NULL;
data2 = NULL;
/* Check that the socket still exists (it has not been
* destroyed) and for safety, check that the m_endpoint field
* is what we expect it to be.
*/
if ((socket != NULL) && (socket->m_takesEvents))
{
switch (ev)
{
case T_LISTEN :
event = GSOCK_CONNECTION ;
break ;
case T_CONNECT :
event = GSOCK_CONNECTION ;
event2 = GSOCK_OUTPUT ;
{
TCall retCall;
retCall.addr.buf = NULL;
retCall.addr.maxlen = 0;
retCall.opt.buf = NULL;
retCall.opt.maxlen = 0;
retCall.udata.buf = NULL;
retCall.udata.maxlen= 0;
OTRcvConnect( socket->m_endpoint , &retCall ) ;
}
break ;
case T_DISCONNECT :
event = GSOCK_LOST ;
break ;
case T_GODATA :
case T_GOEXDATA :
event = GSOCK_OUTPUT ;
break ;
case T_DATA :
event = GSOCK_INPUT ;
break ;
case T_EXDATA :
event = GSOCK_INPUT ;
break ;
}
if (event != GSOCK_MAX_EVENT)
{
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);
}
if (event2 != GSOCK_MAX_EVENT)
{
cback2 = socket->m_cbacks[event2];
data2 = socket->m_data[event2];
if (event2 == GSOCK_LOST)
socket->m_detected = GSOCK_LOST_FLAG;
else
socket->m_detected |= (1 << event2);
}
}
/* OK, we can now leave the critical section because we have
* already obtained the callback address (we make no further
* accesses to socket->whatever). However, the app should
* be prepared to handle events from a socket that has just
* been closed!
*/
if (cback != NULL)
(cback)(socket, event, data);
if (cback2 != NULL)
(cback2)(socket, event2, data2);
}
/* Hack added for Mac OS X */
GSocketError GAddress_UNIX_GetPath(GAddress *addr, char *path, size_t buf)
{
return GSOCK_INVADDR;
}
GSocketError GAddress_UNIX_SetPath(GAddress *addr, const char *path)
{
return GSOCK_INVADDR;
}
#endif /* wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) */
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