+++ /dev/null
-/* -------------------------------------------------------------------------
- * Project: GSocket (Generic Socket) for WX
- * Name: src/mac/carbon/gsocket.cpp
- * Copyright: (c) Guilhem Lavaux
- * Licence: wxWindows Licence
- * 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/platform.h"
-#endif
-
-#if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__)
-
-#ifdef __DARWIN__
- #include <CoreServices/CoreServices.h>
-#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 )
- {
- 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);
-*/
-}
-
-bool GSocket_Init()
-{
- return true;
-}
-
-bool 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()
-{
- int i;
-
- m_ok = GSocket_Verify_Inited();
-
- m_endpoint = NULL ;
- for (i=0;i<GSOCK_MAX_EVENT;i++)
- {
- m_cbacks[i] = NULL;
- }
- m_detected = 0;
- m_local = NULL;
- m_peer = NULL;
- m_error = GSOCK_NOERROR;
- m_server = false;
- m_stream = true;
- m_non_blocking = false;
- m_timeout = 1*1000;
- /* 10 sec * 1000 millisec */
- m_takesEvents = true ;
- m_mac_events = wxMacGetNotifierTable() ;
-}
-
-GSocket::~GSocket()
-{
- assert(this);
-
- /* Check that the socket is really shutdowned */
- if (m_endpoint != kOTInvalidEndpointRef)
- Shutdown();
-
-
- /* Destroy private addresses */
- if (m_local)
- GAddress_destroy(m_local);
-
- if (m_peer)
- GAddress_destroy(m_peer);
-}
-
-/* GSocket_Shutdown:
- * Disallow further read/write operations on this socket, close
- * the fd and disable all callbacks.
- */
-void GSocket::Shutdown()
-{
- OSStatus err ;
- int evt;
-
- assert(this);
-
- /* If socket has been created, shutdown it */
- if (m_endpoint != kOTInvalidEndpointRef )
- {
- err = OTSndOrderlyDisconnect( m_endpoint ) ;
- if ( err != kOTNoError )
- {
- }
-
- err = OTRcvOrderlyDisconnect( m_endpoint ) ;
- err = OTUnbind( m_endpoint ) ;
- err = OTCloseProvider( m_endpoint ) ;
- m_endpoint = kOTInvalidEndpointRef ;
- }
-
- /* Disable GUI callbacks */
- for (evt = 0; evt < GSOCK_MAX_EVENT; evt++)
- m_cbacks[evt] = NULL;
-
- m_detected = 0;
- Disable_Events();
- wxMacRemoveAllNotifiersForData( wxMacGetNotifierTable() , this ) ;
-}
-
-
-/* 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(GAddress *address)
-{
- assert(this);
-
- /* the socket must be initialized, or it must be a server */
- if ((m_endpoint != kOTInvalidEndpointRef && !m_server))
- {
- m_error = GSOCK_INVSOCK;
- return GSOCK_INVSOCK;
- }
-
- /* check address */
- if (address == NULL || address->m_family == GSOCK_NOFAMILY)
- {
- m_error = GSOCK_INVADDR;
- return GSOCK_INVADDR;
- }
-
- if (m_local)
- GAddress_destroy(m_local);
-
- m_local = GAddress_copy(address);
-
- return GSOCK_NOERROR;
-}
-
-GSocketError GSocket::SetPeer(GAddress *address)
-{
- assert(this);
-
- /* check address */
- if (address == NULL || address->m_family == GSOCK_NOFAMILY)
- {
- m_error = GSOCK_INVADDR;
- return GSOCK_INVADDR;
- }
-
- if (m_peer)
- GAddress_destroy(m_peer);
-
- m_peer = GAddress_copy(address);
-
- return GSOCK_NOERROR;
-}
-
-GAddress *GSocket::GetLocal()
-{
- GAddress *address = NULL ;
- GSocketError err;
- InetAddress loc ;
-
- assert(this);
-
- /* try to get it from the m_local var first */
- if (m_local)
- return GAddress_copy(m_local);
-
- /* else, if the socket is initialized, try getsockname */
- if (m_endpoint == kOTInvalidEndpointRef)
- {
- 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)
- {
- m_error = GSOCK_MEMERR;
- return NULL;
- }
-
- err = _GAddress_translate_from(address, &loc);
- if (err != GSOCK_NOERROR)
- {
- GAddress_destroy(address);
- m_error = err;
- return NULL;
- }
-
- return address;
-}
-
-GAddress *GSocket::GetPeer()
-{
- assert(this);
-
- /* try to get it from the m_peer var */
- if (m_peer)
- return GAddress_copy(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()
-{
- assert(this);
-
- /* must not be in use */
- if (m_endpoint != kOTInvalidEndpointRef )
- {
- m_error = GSOCK_INVSOCK;
- return GSOCK_INVSOCK;
- }
-
- /* the local addr must have been set */
- if (!m_local)
- {
- m_error = GSOCK_INVADDR;
- return GSOCK_INVADDR;
- }
-
- /* Initialize all fields */
- m_stream = true;
- m_server = true;
- m_oriented = true;
-
-// TODO
-#if 0
- /* Create the socket */
- m_endpoint = socket(m_local->m_realfamily, SOCK_STREAM, 0);
- socket_set_ref( m_endpoint , (unsigned long) &gMacNetEvents , (unsigned long) this ) ;
- if (m_endpoint == kOTInvalidEndpointRef)
- {
- m_error = GSOCK_IOERR;
- return GSOCK_IOERR;
- }
-
- ioctl(m_endpoint, FIONBIO, &arg);
- Enable_Events();
-
- /* Bind to the local address,
- * retrieve the actual address bound,
- * and listen up to 5 connections.
- */
- if ((bind(m_endpoint, m_local->m_addr, m_local->m_len) != 0) ||
- (getsockname(m_endpoint,
- m_local->m_addr,
- (WX_SOCKLEN_T *) &m_local->m_len) != 0) ||
- (listen(m_endpoint, 5) != 0))
- {
- close(m_endpoint);
- m_endpoint = -1;
- 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 *connection = NULL ;
-
- assert(this);
-
- /* Reenable CONNECTION events */
- m_detected &= ~GSOCK_CONNECTION_FLAG;
-
- /* If the socket has already been created, we exit immediately */
- if (m_endpoint == kOTInvalidEndpointRef || !m_server)
- {
- m_error = GSOCK_INVSOCK;
- return NULL;
- }
-
- /* Create a GSocket object for the new connection */
- connection = GSocket_new();
-
- if (!connection)
- {
- m_error = GSOCK_MEMERR;
- return NULL;
- }
-
- /* Wait for a connection (with timeout) */
- if (Input_Timeout() == GSOCK_TIMEDOUT)
- {
- delete connection;
- /* m_error set by _GSocket_Input_Timeout */
- return NULL;
- }
-
-// TODO
-#if 0
- connection->m_endpoint = accept(m_endpoint, &from, (WX_SOCKLEN_T *) &fromlen);
-#endif
-
- if (connection->m_endpoint == kOTInvalidEndpointRef )
- {
- if (errno == EWOULDBLOCK)
- m_error = GSOCK_WOULDBLOCK;
- else
- m_error = GSOCK_IOERR;
-
- delete 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)
- {
- delete connection;
- 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);
- m_error = err;
- return NULL;
- }
-
- ioctl(connection->m_endpoint, FIONBIO, &arg);
-#endif
- connection->Enable_Events();
-
- 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()
-{
- assert(this);
-
- if (m_endpoint != kOTInvalidEndpointRef )
- {
- m_error = GSOCK_INVSOCK;
- return GSOCK_INVSOCK;
- }
-
- if (!m_local)
- {
- m_error = GSOCK_INVADDR;
- return GSOCK_INVADDR;
- }
-
- /* Initialize all fields */
- m_stream = false;
- m_server = false;
- m_oriented = false;
-
- /* Create the socket */
-
-// TODO
-#if 0
- m_endpoint = socket(m_local->m_realfamily, SOCK_DGRAM, 0);
- socket_set_ref( m_endpoint , (unsigned long) &gMacNetEvents , (unsigned long) this ) ;
-#endif
- if (m_endpoint == kOTInvalidEndpointRef )
- {
- m_error = GSOCK_IOERR;
- return GSOCK_IOERR;
- }
-
-// TODO
-#if 0
- ioctl(m_endpoint, FIONBIO, &arg);
-#endif
- Enable_Events();
-
- /* Bind to the local address,
- * and retrieve the actual address bound.
- */
-// TODO
-#if 0
- if ((bind(m_endpoint, m_local->m_addr, m_local->m_len) != 0) ||
- (getsockname(m_endpoint,
- m_local->m_addr,
- (WX_SOCKLEN_T *) &m_local->m_len) != 0))
- {
- close(m_endpoint);
- m_endpoint = -1;
- 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 successfully 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(GSocketStream stream)
-{
- InetAddress addr ;
- TEndpointInfo info;
- OSStatus err = kOTNoError;
- TCall peer ;
-
- assert(this);
-
- /* Enable CONNECTION events (needed for nonblocking connections) */
- m_detected &= ~GSOCK_CONNECTION_FLAG;
-
- if (m_endpoint != kOTInvalidEndpointRef )
- {
- m_error = GSOCK_INVSOCK;
- return GSOCK_INVSOCK;
- }
-
- if (!m_peer)
- {
- m_error = GSOCK_INVADDR;
- return GSOCK_INVADDR;
- }
-
- /* Streamed or dgram socket? */
- m_stream = (stream == GSOCK_STREAMED);
- m_oriented = true;
- m_server = false;
-
- /* Create the socket */
-#if TARGET_CARBON
- m_endpoint =
- OTOpenEndpointInContext( OTCreateConfiguration( kTCPName) , 0 , &info , &err , NULL ) ;
-#else
- m_endpoint =
- OTOpenEndpoint( OTCreateConfiguration( kTCPName) , 0 , &info , &err ) ;
-#endif
- if ( m_endpoint == kOTInvalidEndpointRef || err != kOTNoError )
- {
- m_endpoint = kOTInvalidEndpointRef ;
- m_error = GSOCK_IOERR;
- return GSOCK_IOERR;
- }
- err = OTBind( m_endpoint , nil , nil ) ;
- if ( err != kOTNoError )
- {
- return GSOCK_IOERR;
- }
- SetDefaultEndpointModes( m_endpoint , this ) ;
-// TODO
-#if 0
- ioctl(m_endpoint, FIONBIO, &arg);
-#endif
- Enable_Events();
-
- _GAddress_translate_to( m_peer , &addr ) ;
- memset( &peer , 0 , sizeof( TCall ) ) ;
- peer.addr.len = sizeof( InetAddress ) ;
- peer.addr.buf = (unsigned char*) &addr ;
- err = OTConnect( 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 ) && (!m_non_blocking))
- {
- if (Output_Timeout() == GSOCK_TIMEDOUT)
- {
- OTSndOrderlyDisconnect( m_endpoint ) ;
- m_endpoint = kOTInvalidEndpointRef ;
- /* m_error is set in _GSocket_Output_Timeout */
- return GSOCK_TIMEDOUT;
- }
- else
- {
-/*
- int error;
- WX_SOCKLEN_T len = sizeof(error);
-
- getsockopt(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) && (m_non_blocking))
- {
- 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( m_endpoint ) ;
-
- m_endpoint = kOTInvalidEndpointRef ;
- m_error = GSOCK_IOERR;
- return GSOCK_IOERR;
- }
-// OTInetEventHandler(this, T_CONNECT , kOTNoError , NULL ) ;
- return GSOCK_NOERROR;
-}
-
-/* Generic IO */
-
-/* Like recv(), send(), ... */
-int GSocket::Read(char *buffer, int size)
-{
- int ret = 0 ;
-
- assert(this);
-
- /* Reenable INPUT events */
- m_detected &= ~GSOCK_INPUT_FLAG;
-
- if (m_endpoint == kOTInvalidEndpointRef || m_server)
- {
- m_error = GSOCK_INVSOCK;
- return -1;
- }
-
- /* If the socket is blocking, wait for data (with a timeout) */
- if (Input_Timeout() == GSOCK_TIMEDOUT)
- return -1;
-
- /* Read the data */
- if (m_stream)
- ret = Recv_Stream(buffer, size);
- else
- ret = Recv_Dgram(buffer, size);
-
- if (ret == -1)
- {
- if (errno == EWOULDBLOCK)
- m_error = GSOCK_WOULDBLOCK;
- else
- m_error = GSOCK_IOERR;
- }
-
- return ret;
-}
-
-int GSocket::Write(const char *buffer, int size)
-{
- int ret;
-
- assert(this);
-
- if (m_endpoint == kOTInvalidEndpointRef || m_server)
- {
- m_error = GSOCK_INVSOCK;
- return -1;
- }
-
- /* If the socket is blocking, wait for writability (with a timeout) */
- if (Output_Timeout() == GSOCK_TIMEDOUT)
- return -1;
-
- /* Write the data */
- if (m_stream)
- ret = Send_Stream(buffer, size);
- else
- ret = Send_Dgram(buffer, size);
-
- if (ret == -1)
- {
- if (errno == EWOULDBLOCK)
- m_error = GSOCK_WOULDBLOCK;
- else
- 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.
- */
- 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(GSocketEventFlags flags)
-{
- assert(this);
- wxMacProcessNotifierEvents() ;
- /*
- state = OTGetEndpointState(m_endpoint);
-
- if ( ( flags & GSOCK_INPUT_FLAG ) && ! ( m_detected & GSOCK_INPUT_FLAG ) )
- {
- size_t sz = 0 ;
- OTCountDataBytes( m_endpoint , &sz ) ;
- if ( state == T_INCON || sz > 0 )
- {
- m_detected |= GSOCK_INPUT_FLAG ;
- (m_cbacks[GSOCK_INPUT])(this, GSOCK_INPUT, m_data[GSOCK_INPUT]);
- }
- }
- if ( ( flags & GSOCK_INPUT_FLAG ) && ! ( m_detected & GSOCK_OUTPUT_FLAG ) )
- {
- if ( state == T_DATAXFER || state == T_INREL )
- {
- m_detected |=GSOCK_OUTPUT_FLAG ;
- (m_cbacks[GSOCK_OUTPUT])(this, GSOCK_OUTPUT, m_data[GSOCK_OUTPUT]);
- }
- }
- */
- return ( flags & m_detected ) ;
-}
-
-/* Flags */
-
-/* GSocket_SetNonBlocking:
- * Sets the socket to non-blocking mode. All IO calls will return
- * immediately.
- */
-void GSocket::SetNonBlocking(bool non_block)
-{
- assert(this);
-
- m_non_blocking = non_block;
-}
-
-/* GSocket_SetTimeout:
- * Sets the timeout for blocking calls. Time is expressed in
- * milliseconds.
- */
-void GSocket::SetTimeout(unsigned long millisec)
-{
- assert(this);
-
-// 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
-// m_timeout = millisec;
-}
-
-/* GSocket_GetError:
- * Returns the last error which occurred for this socket. Note that successful
- * operations do not clear this back to GSOCK_NOERROR, so use it only
- * after an error.
- */
-GSocketError WXDLLIMPEXP_NET GSocket::GetError()
-{
- assert(this);
-
- return 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 successfully 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(GSocketEventFlags flags,
- GSocketCallback callback, char *cdata)
-{
- int count;
-
- assert(this);
-
- for (count = 0; count < GSOCK_MAX_EVENT; count++)
- {
- if ((flags & (1 << count)) != 0)
- {
- m_cbacks[count] = callback;
- 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(GSocketEventFlags flags)
-{
- int count;
-
- assert(this);
-
- for (count = 0; count < GSOCK_MAX_EVENT; count++)
- {
- if ((flags & (1 << count)) != 0)
- {
- m_cbacks[count] = NULL;
- 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(char *buffer, int size)
-{
- OTFlags flags ;
- OTResult res ;
- OTByteCount sz = 0 ;
-
- OTCountDataBytes( m_endpoint , &sz ) ;
- if ( size > (int)sz )
- size = sz ;
- res = OTRcv( m_endpoint , buffer , size , &flags ) ;
- if ( res < 0 )
- {
- return -1 ;
- }
-
- // we simulate another read event if there are still bytes
- if ( m_takesEvents )
- {
- OTByteCount sz = 0 ;
- OTCountDataBytes( m_endpoint , &sz ) ;
- if ( sz > 0 )
- {
- m_detected |= GSOCK_INPUT_FLAG ;
- (m_cbacks[GSOCK_INPUT])(this, GSOCK_INPUT, m_data[GSOCK_INPUT]);
- }
- }
- return res ;
-}
-
-int GSocket::Recv_Dgram(char *buffer, int size)
-{
-// TODO
- int ret = -1;
-#if 0
- struct sockaddr from;
- WX_SOCKLEN_T fromlen = sizeof(from);
- GSocketError err;
-
- fromlen = sizeof(from);
-
- ret = recvfrom(m_endpoint, buffer, size, 0, &from, (WX_SOCKLEN_T *) &fromlen);
-
- if (ret == -1)
- return -1;
-
- /* Translate a system address into a GSocket address */
- if (!m_peer)
- {
- m_peer = GAddress_new();
- if (!m_peer)
- {
- m_error = GSOCK_MEMERR;
- return -1;
- }
- }
- err = _GAddress_translate_from(m_peer, &from, fromlen);
- if (err != GSOCK_NOERROR)
- {
- GAddress_destroy(m_peer);
- m_peer = NULL;
- m_error = err;
- return -1;
- }
-#endif
- return ret;
-}
-
-int GSocket::Send_Stream(const char *buffer, int size)
-{
- OTFlags flags = 0 ;
- OTResult res ;
-
- res = OTSnd( m_endpoint , (void*) buffer , size , flags ) ;
- return res ;
-}
-
-int GSocket::Send_Dgram(const char *buffer, int size)
-{
- int ret = -1 ;
-// TODO
-#if 0
- struct sockaddr *addr;
- int len ;
- GSocketError err;
-
- if (!m_peer)
- {
- m_error = GSOCK_INVADDR;
- return -1;
- }
-
- err = _GAddress_translate_to(m_peer, &addr, &len);
- if (err != GSOCK_NOERROR)
- {
- m_error = err;
- return -1;
- }
-
- ret = sendto(m_endpoint, buffer, size, 0, addr, len);
-
- /* Frees memory allocated from _GAddress_translate_to */
- free(addr);
-#endif
- return ret;
-}
-
-/* Compatibility functions for GSocket */
-GSocket *GSocket_new(void)
-{
- GSocket *newsocket = new GSocket();
- if(newsocket->IsOk())
- return newsocket;
- delete newsocket;
- return NULL;
-}
-
-
-/*
- * -------------------------------------------------------------------------
- * 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() )
- 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() )
- 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_SetBroadcastAddress(GAddress *address)
-{
- return GAddress_INET_SetHostAddress(address, INADDR_BROADCAST);
-}
-
-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
-{
- const char * name ;
- unsigned short port ;
- const 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() )
- 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()
-{
- if ( m_takesEvents )
- return ;
-
- {
- OTResult state ;
- m_takesEvents = true ;
- state = OTGetEndpointState(m_endpoint);
-
- {
- OTByteCount sz = 0 ;
- OTCountDataBytes( m_endpoint , &sz ) ;
- if ( state == T_INCON || sz > 0 )
- {
- m_detected |= GSOCK_INPUT_FLAG ;
- (m_cbacks[GSOCK_INPUT])(this, GSOCK_INPUT, m_data[GSOCK_INPUT]);
- }
- }
- {
- if ( state == T_DATAXFER || state == T_INREL )
- {
- m_detected |=GSOCK_OUTPUT_FLAG ;
- (m_cbacks[GSOCK_OUTPUT])(this, GSOCK_OUTPUT, m_data[GSOCK_OUTPUT]);
- }
- }
- }
-}
-
-void GSocket::Disable_Events()
-{
- m_takesEvents = false ;
-}
-
-/* _GSocket_Input_Timeout:
- * For blocking sockets, wait until data is available or
- * until timeout ellapses.
- */
-GSocketError GSocket::Input_Timeout()
-{
- if ( !m_non_blocking )
- {
- UnsignedWide now , start ;
- bool formerTakesEvents = m_takesEvents ;
- Microseconds(&start);
- now = start ;
- m_takesEvents = false ;
-
- while( (now.hi * 4294967296.0 + now.lo) - (start.hi * 4294967296.0 + start.lo) < m_timeout * 1000.0 )
- {
- OTResult state ;
- OTByteCount sz = 0 ;
- state = OTGetEndpointState(m_endpoint);
-
- OTCountDataBytes( m_endpoint , &sz ) ;
- if ( state == T_INCON || sz > 0 )
- {
- m_takesEvents = formerTakesEvents ;
- return GSOCK_NOERROR;
- }
- Microseconds(&now);
- }
- m_takesEvents = formerTakesEvents ;
- 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()
-{
- if ( !m_non_blocking )
- {
- UnsignedWide now , start ;
- bool formerTakesEvents = m_takesEvents ;
- Microseconds(&start);
- now = start ;
- m_takesEvents = false ;
-
- while( (now.hi * 4294967296.0 + now.lo) - (start.hi * 4294967296.0 + start.lo) < m_timeout * 1000.0 )
- {
- OTResult state ;
- state = OTGetEndpointState(m_endpoint);
-
- if ( state == T_DATAXFER || state == T_INREL )
- {
- m_takesEvents = formerTakesEvents ;
- return GSOCK_NOERROR;
- }
- Microseconds(&now);
- }
- m_takesEvents = formerTakesEvents ;
- 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 successfully 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 ;
-
- if ( !socket )
- return ;
-
- OTEventCode ev = (OTEventCode) e ;
- GSocketEvent event;
- GSocketEvent event2;
- GSocketCallback cback;
- char *data;
- GSocketCallback cback2;
- char *data2;
-
- 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__) */
+++ /dev/null
-/////////////////////////////////////////////////////////////////////////////
-// Name: src/mac/carbon/mpthread.cpp
-// Purpose: wxThread Implementation
-// Author: Original from Wolfram Gloger/Guilhem Lavaux/Vadim Zeitlin
-// Modified by: Aj Lavin, Stefan Csomor
-// Created: 04/22/98
-// RCS-ID: $Id$
-// Copyright: (c) Wolfram Gloger (1996, 1997); Guilhem Lavaux (1998),
-// Vadim Zeitlin (1999) , Stefan Csomor (2000)
-// Licence: wxWindows licence
-/////////////////////////////////////////////////////////////////////////////
-
-// ----------------------------------------------------------------------------
-// headers
-// ----------------------------------------------------------------------------
-
-// For compilers that support precompilation, includes "wx.h".
-#include "wx/wxprec.h"
-
-#if defined(__BORLANDC__)
- #pragma hdrstop
-#endif
-
-#if wxUSE_THREADS
-
-#ifndef WX_PRECOMP
- #include "wx/wx.h"
- #include "wx/module.h"
-#endif
-
-#include "wx/thread.h"
-
-#ifdef __WXMAC__
-#if TARGET_API_MAC_OSX
-#include <CoreServices/CoreServices.h>
-#else
-#include <DriverServices.h>
-#include <Multiprocessing.h>
-#endif
-#include "wx/mac/uma.h"
-#endif
-
-// ----------------------------------------------------------------------------
-// constants
-// ----------------------------------------------------------------------------
-
-// the possible states of the thread ("=>" shows all possible transitions from
-// this state)
-enum wxThreadState
-{
- STATE_NEW, // didn't start execution yet (=> RUNNING)
- STATE_RUNNING, // thread is running (=> PAUSED, CANCELED)
- STATE_PAUSED, // thread is temporarily suspended (=> RUNNING)
- STATE_CANCELED, // thread should terminate a.s.a.p. (=> EXITED)
- STATE_EXITED // thread is terminating
-};
-
-// ----------------------------------------------------------------------------
-// this module globals
-// ----------------------------------------------------------------------------
-
-
-// the task ID of the main thread
-static wxThreadIdType gs_idMainThread = kInvalidID;
-
-// this is the Per-Task Storage for the pointer to the appropriate wxThread
-TaskStorageIndex gs_tlsForWXThread = 0 ;
-
-// if it's false, some secondary thread is holding the GUI lock
-static bool gs_bGuiOwnedByMainThread = true;
-
-// critical section which controls access to all GUI functions: any secondary
-// thread (i.e. except the main one) must enter this crit section before doing
-// any GUI calls
-static wxCriticalSection *gs_critsectGui = NULL;
-
-// critical section which protects gs_nWaitingForGui variable
-static wxCriticalSection *gs_critsectWaitingForGui = NULL;
-
-// number of threads waiting for GUI in wxMutexGuiEnter()
-static size_t gs_nWaitingForGui = 0;
-
-// overall number of threads, needed for determining the sleep value of the main
-// event loop
-size_t g_numberOfThreads = 0;
-
-
-
-#if wxUSE_GUI
-
-MPCriticalRegionID gs_guiCritical = kInvalidID;
-
-#endif
-
-// ============================================================================
-// MacOS implementation of thread classes
-// ============================================================================
-
-/*
- Notes :
-
- The implementation is very close to the phtreads implementation, the reason for
- using MPServices is the fact that these are also available under OS 9. Thus allowing
- for one common API for all current builds.
-
- As soon as wxThreads are on a 64 bit address space, the TLS must be extended
- to use two indices one for each 32 bit part as the MP implementation is limited
- to longs.
-
- I have two implementations for mutexes :
- version A based on a binary semaphore, problem - not reentrant, version B based
- on a critical region, allows for reentrancy, performance implications not
- yet tested
-
- The same for condition internal, one implementation by Aj Lavin and the other one
- copied from the thrimpl.cpp which I assume has been more broadly tested, I've just
- replaced the interlock increment with the appropriate PPC calls
-*/
-
-// ----------------------------------------------------------------------------
-// wxMutex implementation
-// ----------------------------------------------------------------------------
-
-static bool wxMacMPThreadsInitVerify()
-{
- static bool hasThreadManager = false ;
- if ( !hasThreadManager )
- hasThreadManager = MPLibraryIsLoaded();
-
- if ( !hasThreadManager )
- {
- wxMessageBox( wxT("Error") , wxT("MP Thread Support is not available on this System" ), wxOK ) ;
- return false ;
- }
- return true ;
-}
-
-#if 0
-
-class wxMutexInternal
-{
-public:
- wxMutexInternal(wxMutexType mutexType) ;
- ~wxMutexInternal() ;
- bool IsOk() const { return m_isOk; }
-
- wxMutexError Lock() ;
- wxMutexError TryLock() ;
- wxMutexError Unlock();
-private:
- MPSemaphoreID m_semaphore;
- bool m_isOk ;
-};
-
-wxMutexInternal::wxMutexInternal(wxMutexType mutexType )
-{
- wxMacMPThreadsInitVerify() ;
-
- m_isOk = false ;
- m_semaphore = kInvalidID ;
-
- OSStatus err = noErr ;
- switch( mutexType )
- {
- case wxMUTEX_DEFAULT :
- {
- verify_noerr( MPCreateBinarySemaphore( & m_semaphore) );
- m_isOk = ( m_semaphore != kInvalidID ) ;
- }
- break ;
- case wxMUTEX_RECURSIVE :
- wxFAIL_MSG(wxT("Recursive Mutex not supported yet") ) ;
- break ;
- default :
- wxFAIL_MSG(wxT("Unknown mutex type") ) ;
- break ;
- }
-}
-
-wxMutexInternal::~wxMutexInternal()
-{
- if ( m_semaphore != kInvalidID )
- MPDeleteSemaphore( m_semaphore);
-}
-
-wxMutexError wxMutexInternal::Lock()
-{
- wxCHECK_MSG( m_isOk , wxMUTEX_MISC_ERROR , wxT("Invalid Mutex") ) ;
- OSStatus err = MPWaitOnSemaphore( m_semaphore, kDurationForever);
- if ( err)
- {
- wxLogSysError(wxT("Could not lock mutex"));
- return wxMUTEX_MISC_ERROR;
- }
-
- return wxMUTEX_NO_ERROR;
-}
-
-wxMutexError wxMutexInternal::TryLock()
-{
- wxCHECK_MSG( m_isOk , wxMUTEX_MISC_ERROR , wxT("Invalid Mutex") ) ;
- OSStatus err = MPWaitOnSemaphore( m_semaphore, kDurationImmediate);
- if ( err)
- {
- if ( err == kMPTimeoutErr)
- {
- return wxMUTEX_BUSY;
- }
- wxLogSysError(wxT("Could not try lock mutex"));
- return wxMUTEX_MISC_ERROR;
- }
-
- return wxMUTEX_NO_ERROR;
-}
-
-wxMutexError wxMutexInternal::Unlock()
-{
- wxCHECK_MSG( m_isOk , wxMUTEX_MISC_ERROR , wxT("Invalid Mutex") ) ;
- OSStatus err = MPSignalSemaphore( m_semaphore);
- if ( err)
- {
- wxLogSysError(_("Could not unlock mutex"));
- return wxMUTEX_MISC_ERROR;
- }
-
- return wxMUTEX_NO_ERROR;
-}
-
-#else
-
-class wxMutexInternal
-{
-public:
- wxMutexInternal(wxMutexType mutexType) ;
- ~wxMutexInternal() ;
- bool IsOk() const { return m_isOk; }
-
- wxMutexError Lock() ;
- wxMutexError TryLock() ;
- wxMutexError Unlock();
-private:
- MPCriticalRegionID m_critRegion ;
- bool m_isOk ;
-};
-
-wxMutexInternal::wxMutexInternal(wxMutexType mutexType )
-{
- wxMacMPThreadsInitVerify() ;
- m_isOk = false ;
- m_critRegion = kInvalidID ;
-
- verify_noerr( MPCreateCriticalRegion( & m_critRegion) );
- m_isOk = ( m_critRegion != kInvalidID ) ;
-
- if ( !IsOk() )
- wxFAIL_MSG(wxT("Error when creating mutex") ) ;
-}
-
-wxMutexInternal::~wxMutexInternal()
-{
- if ( m_critRegion != kInvalidID )
- MPDeleteCriticalRegion( m_critRegion);
-}
-
-wxMutexError wxMutexInternal::Lock()
-{
- wxCHECK_MSG( m_isOk , wxMUTEX_MISC_ERROR , wxT("Invalid Mutex") ) ;
- OSStatus err = MPEnterCriticalRegion( m_critRegion, kDurationForever);
- if ( err)
- {
- wxLogSysError(wxT("Could not lock mutex"));
- return wxMUTEX_MISC_ERROR;
- }
-
- return wxMUTEX_NO_ERROR;
-}
-
-wxMutexError wxMutexInternal::TryLock()
-{
- wxCHECK_MSG( m_isOk , wxMUTEX_MISC_ERROR , wxT("Invalid Mutex") ) ;
- OSStatus err = MPEnterCriticalRegion( m_critRegion, kDurationImmediate);
- if ( err)
- {
- if ( err == kMPTimeoutErr)
- {
- return wxMUTEX_BUSY;
- }
- wxLogSysError(wxT("Could not try lock mutex"));
- return wxMUTEX_MISC_ERROR;
- }
-
- return wxMUTEX_NO_ERROR;
-}
-
-wxMutexError wxMutexInternal::Unlock()
-{
- wxCHECK_MSG( m_isOk , wxMUTEX_MISC_ERROR , wxT("Invalid Mutex") ) ;
- OSStatus err = MPExitCriticalRegion( m_critRegion);
- if ( err)
- {
- wxLogSysError(_("Could not unlock mutex"));
- return wxMUTEX_MISC_ERROR;
- }
-
- return wxMUTEX_NO_ERROR;
-}
-
-#endif
-
-// --------------------------------------------------------------------------
-// wxSemaphore
-// --------------------------------------------------------------------------
-
-class wxSemaphoreInternal
-{
-public:
- wxSemaphoreInternal(int initialcount, int maxcount);
- ~wxSemaphoreInternal();
-
- bool IsOk() const { return m_isOk; }
-
- wxSemaError WaitTimeout(unsigned long milliseconds);
-
- wxSemaError Wait() { return WaitTimeout( kDurationForever); }
-
- wxSemaError TryWait()
- {
- wxSemaError err = WaitTimeout(kDurationImmediate);
- if ( err == wxSEMA_TIMEOUT )
- err = wxSEMA_BUSY ;
- return err ;
- }
- wxSemaError Post();
-
-private:
- MPSemaphoreID m_semaphore;
- bool m_isOk ;
-};
-
-wxSemaphoreInternal::wxSemaphoreInternal(int initialcount, int maxcount)
-{
- wxMacMPThreadsInitVerify() ;
- m_isOk = false ;
- m_semaphore = kInvalidID ;
- if ( maxcount == 0 )
- {
- // make it practically infinite
- maxcount = INT_MAX;
- }
- verify_noerr( MPCreateSemaphore( maxcount, initialcount, & m_semaphore) );
- m_isOk = ( m_semaphore != kInvalidID ) ;
-
- if ( !IsOk() )
- wxFAIL_MSG(wxT("Error when creating semaphore") ) ;
-}
-
-wxSemaphoreInternal::~wxSemaphoreInternal()
-{
- if( m_semaphore != kInvalidID )
- MPDeleteSemaphore( m_semaphore);
-}
-
-wxSemaError wxSemaphoreInternal::WaitTimeout(unsigned long milliseconds)
-{
- OSStatus err = MPWaitOnSemaphore( m_semaphore, milliseconds);
- if ( err)
- {
- if ( err == kMPTimeoutErr)
- {
- return wxSEMA_TIMEOUT;
- }
- return wxSEMA_MISC_ERROR;
- }
- return wxSEMA_NO_ERROR;
-}
-
-wxSemaError wxSemaphoreInternal::Post()
-{
- OSStatus err = MPSignalSemaphore( m_semaphore);
- if ( err)
- {
- return wxSEMA_MISC_ERROR;
- }
- return wxSEMA_NO_ERROR;
-}
-
-// ----------------------------------------------------------------------------
-// wxCondition implementation
-// ----------------------------------------------------------------------------
-
-#if 0
-
-class wxConditionInternal
-{
-public:
-
- wxConditionInternal(wxMutex& mutex)
- : m_mutex( mutex),
- m_semaphore( 0, 1),
- m_gate( 1, 1)
- {
- m_waiters = 0;
- m_signals = 0;
- m_canceled = 0;
- }
-
- ~wxConditionInternal()
- {
- }
-
- bool IsOk() const { return m_mutex.IsOk() ; }
-
- wxCondError Wait()
- {
- return WaitTimeout( kDurationForever);
- }
-
- wxCondError WaitTimeout(unsigned long msectimeout);
-
- wxCondError Signal()
- {
- return DoSignal( false);
- }
-
- wxCondError Broadcast()
- {
- return DoSignal( true);
- }
-
-private:
-
- wxCondError DoSignal( bool signalAll);
-
- wxMutex& m_mutex;
- wxSemaphoreInternal m_semaphore; // Signals the waiting threads.
- wxSemaphoreInternal m_gate;
- wxCriticalSection m_varSection;
- size_t m_waiters; // Number of threads waiting for a signal.
- size_t m_signals; // Number of signals to send.
- size_t m_canceled; // Number of canceled waiters in m_waiters.
-};
-
-
-wxCondError wxConditionInternal::WaitTimeout(unsigned long msectimeout)
-{
- m_gate.Wait();
- if ( ++ m_waiters == INT_MAX)
- {
- m_varSection.Enter();
- m_waiters -= m_canceled;
- m_signals -= m_canceled;
- m_canceled = 0;
- m_varSection.Leave();
- }
- m_gate.Post();
-
- m_mutex.Unlock();
-
- wxSemaError err = m_semaphore.WaitTimeout( msectimeout);
- wxASSERT( err == wxSEMA_NO_ERROR || err == wxSEMA_TIMEOUT);
-
- m_varSection.Enter();
- if ( err != wxSEMA_NO_ERROR)
- {
- if ( m_signals > m_canceled)
- {
- // A signal is being sent after we timed out.
-
- if ( m_waiters == m_signals)
- {
- // There are no excess waiters to catch the signal, so
- // we must throw it away.
-
- wxSemaError err2 = m_semaphore.Wait();
- if ( err2 != wxSEMA_NO_ERROR)
- {
- wxLogSysError(_("Error while waiting on semaphore"));
- }
- wxASSERT( err2 == wxSEMA_NO_ERROR);
- -- m_waiters;
- if ( -- m_signals == m_canceled)
- {
- // This was the last signal. open the gate.
- wxASSERT( m_waiters == m_canceled);
- m_gate.Post();
- }
- }
- else
- {
- // There are excess waiters to catch the signal, leave
- // it be.
- -- m_waiters;
- }
- }
- else
- {
- // No signals is being sent.
- // The gate may be open or closed, so we can't touch m_waiters.
- ++ m_canceled;
- ++ m_signals;
- }
- }
- else
- {
- // We caught a signal.
- wxASSERT( m_signals > m_canceled);
- -- m_waiters;
- if ( -- m_signals == m_canceled)
- {
- // This was the last signal. open the gate.
- wxASSERT( m_waiters == m_canceled);
- m_gate.Post();
- }
- }
- m_varSection.Leave();
-
- m_mutex.Lock();
-
- if ( err)
- {
- return err == wxSEMA_TIMEOUT ? wxCOND_TIMEOUT : wxCOND_MISC_ERROR;
- }
-
- return wxCOND_NO_ERROR;
-}
-
-
-wxCondError wxConditionInternal::DoSignal( bool signalAll)
-{
- m_gate.Wait();
- m_varSection.Enter();
-
- wxASSERT( m_signals == m_canceled);
-
- if ( m_waiters == m_canceled)
- {
- m_varSection.Leave();
- m_gate.Post();
- return wxCOND_NO_ERROR;
- }
-
- if ( m_canceled > 0)
- {
- m_waiters -= m_canceled;
- m_signals = 0;
- m_canceled = 0;
- }
-
- m_signals = signalAll ? m_waiters : 1;
- size_t n = m_signals;
-
- m_varSection.Leave();
-
- // Let the waiters inherit the gate lock.
-
- do
- {
- wxSemaError err = m_semaphore.Post();
- wxASSERT( err == wxSEMA_NO_ERROR);
- } while ( -- n);
-
- return wxCOND_NO_ERROR;
-}
-
-#else
-class wxConditionInternal
-{
-public:
- wxConditionInternal(wxMutex& mutex);
-
- bool IsOk() const { return m_mutex.IsOk() && m_semaphore.IsOk(); }
-
- wxCondError Wait();
- wxCondError WaitTimeout(unsigned long milliseconds);
-
- wxCondError Signal();
- wxCondError Broadcast();
-
-private:
- // the number of threads currently waiting for this condition
- SInt32 m_numWaiters;
-
- // the critical section protecting m_numWaiters
- wxCriticalSection m_csWaiters;
-
- wxMutex& m_mutex;
- wxSemaphore m_semaphore;
-
- DECLARE_NO_COPY_CLASS(wxConditionInternal)
-};
-
-wxConditionInternal::wxConditionInternal(wxMutex& mutex)
- : m_mutex(mutex)
-{
- // another thread can't access it until we return from ctor, so no need to
- // protect access to m_numWaiters here
- m_numWaiters = 0;
-}
-
-wxCondError wxConditionInternal::Wait()
-{
- // increment the number of waiters
- IncrementAtomic(&m_numWaiters);
-
- m_mutex.Unlock();
-
- // a potential race condition can occur here
- //
- // after a thread increments nwaiters, and unlocks the mutex and before the
- // semaphore.Wait() is called, if another thread can cause a signal to be
- // generated
- //
- // this race condition is handled by using a semaphore and incrementing the
- // semaphore only if 'nwaiters' is greater that zero since the semaphore,
- // can 'remember' signals the race condition will not occur
-
- // wait ( if necessary ) and decrement semaphore
- wxSemaError err = m_semaphore.Wait();
- m_mutex.Lock();
-
- return err == wxSEMA_NO_ERROR ? wxCOND_NO_ERROR : wxCOND_MISC_ERROR;
-}
-
-wxCondError wxConditionInternal::WaitTimeout(unsigned long milliseconds)
-{
- IncrementAtomic(&m_numWaiters);
-
- m_mutex.Unlock();
-
- // a race condition can occur at this point in the code
- //
- // please see the comments in Wait(), for details
-
- wxSemaError err = m_semaphore.WaitTimeout(milliseconds);
-
- if ( err == wxSEMA_BUSY )
- {
- // another potential race condition exists here it is caused when a
- // 'waiting' thread timesout, and returns from WaitForSingleObject, but
- // has not yet decremented 'nwaiters'.
- //
- // at this point if another thread calls signal() then the semaphore
- // will be incremented, but the waiting thread will miss it.
- //
- // to handle this particular case, the waiting thread calls
- // WaitForSingleObject again with a timeout of 0, after locking
- // 'nwaiters_mutex'. this call does not block because of the zero
- // timeout, but will allow the waiting thread to catch the missed
- // signals.
- wxCriticalSectionLocker lock(m_csWaiters);
-
- err = m_semaphore.WaitTimeout(0);
-
- if ( err != wxSEMA_NO_ERROR )
- {
- m_numWaiters--;
- }
- }
-
- m_mutex.Lock();
-
- return err == wxSEMA_NO_ERROR ? wxCOND_NO_ERROR : wxCOND_MISC_ERROR;
-}
-
-wxCondError wxConditionInternal::Signal()
-{
- wxCriticalSectionLocker lock(m_csWaiters);
-
- if ( m_numWaiters > 0 )
- {
- // increment the semaphore by 1
- if ( m_semaphore.Post() != wxSEMA_NO_ERROR )
- return wxCOND_MISC_ERROR;
-
- m_numWaiters--;
- }
-
- return wxCOND_NO_ERROR;
-}
-
-wxCondError wxConditionInternal::Broadcast()
-{
- wxCriticalSectionLocker lock(m_csWaiters);
-
- while ( m_numWaiters > 0 )
- {
- if ( m_semaphore.Post() != wxSEMA_NO_ERROR )
- return wxCOND_MISC_ERROR;
-
- m_numWaiters--;
- }
-
- return wxCOND_NO_ERROR;
-}
-#endif
-
-// ----------------------------------------------------------------------------
-// wxCriticalSection implementation
-// ----------------------------------------------------------------------------
-
-// XXX currently implemented as mutex in headers. Change to critical section.
-
-// ----------------------------------------------------------------------------
-// wxThread implementation
-// ----------------------------------------------------------------------------
-
-// wxThreadInternal class
-// ----------------------
-
-class wxThreadInternal
-{
-public:
- wxThreadInternal()
- {
- m_tid = kInvalidID;
- m_state = STATE_NEW;
- m_prio = WXTHREAD_DEFAULT_PRIORITY;
- m_notifyQueueId = kInvalidID;
- m_exitcode = 0;
- m_cancelled = false ;
-
- // set to true only when the thread starts waiting on m_semSuspend
- m_isPaused = false;
-
- // defaults for joinable threads
- m_shouldBeJoined = true;
- m_isDetached = false;
- }
- ~wxThreadInternal()
- {
- if ( m_notifyQueueId)
- {
- MPDeleteQueue( m_notifyQueueId);
- m_notifyQueueId = kInvalidID ;
- }
- }
-
- // thread function
- static OSStatus MacThreadStart(void* arg);
-
- // create a new (suspended) thread (for the given thread object)
- bool Create(wxThread *thread, unsigned int stackSize);
-
- // thread actions
- // start the thread
- wxThreadError Run();
- // unblock the thread allowing it to run
- void SignalRun() { m_semRun.Post(); }
- // ask the thread to terminate
- void Wait();
- // go to sleep until Resume() is called
- void Pause();
- // resume the thread
- void Resume();
-
- // accessors
- // priority
- int GetPriority() const { return m_prio; }
- void SetPriority(int prio) ;
- // state
- wxThreadState GetState() const { return m_state; }
- void SetState(wxThreadState state) { m_state = state; }
-
- // Get the ID of this thread's underlying MP Services task.
- MPTaskID GetId() const { return m_tid; }
-
- void SetCancelFlag() { m_cancelled = true; }
- bool WasCancelled() const { return m_cancelled; }
- // exit code
- void SetExitCode(wxThread::ExitCode exitcode) { m_exitcode = exitcode; }
- wxThread::ExitCode GetExitCode() const { return m_exitcode; }
-
- // the pause flag
- void SetReallyPaused(bool paused) { m_isPaused = paused; }
- bool IsReallyPaused() const { return m_isPaused; }
-
- // tell the thread that it is a detached one
- void Detach()
- {
- wxCriticalSectionLocker lock(m_csJoinFlag);
-
- m_shouldBeJoined = false;
- m_isDetached = true;
- }
-
-private:
- // the thread we're associated with
- wxThread * m_thread;
-
- MPTaskID m_tid; // thread id
- MPQueueID m_notifyQueueId; // its notification queue
-
- wxThreadState m_state; // see wxThreadState enum
- int m_prio; // in wxWidgets units: from 0 to 100
-
- // this flag is set when the thread should terminate
- bool m_cancelled;
-
- // this flag is set when the thread is blocking on m_semSuspend
- bool m_isPaused;
-
- // the thread exit code - only used for joinable (!detached) threads and
- // is only valid after the thread termination
- wxThread::ExitCode m_exitcode;
-
- // many threads may call Wait(), but only one of them should call
- // pthread_join(), so we have to keep track of this
- wxCriticalSection m_csJoinFlag;
- bool m_shouldBeJoined;
- bool m_isDetached;
-
- // this semaphore is posted by Run() and the threads Entry() is not
- // called before it is done
- wxSemaphore m_semRun;
-
- // this one is signaled when the thread should resume after having been
- // Pause()d
- wxSemaphore m_semSuspend;
-};
-
-OSStatus wxThreadInternal::MacThreadStart(void *parameter)
-{
- wxThread* thread = (wxThread*) parameter ;
- wxThreadInternal *pthread = thread->m_internal;
-
- // add to TLS so that This() will work
- verify_noerr( MPSetTaskStorageValue( gs_tlsForWXThread , (long) thread ) ) ;
-
- // have to declare this before pthread_cleanup_push() which defines a
- // block!
- bool dontRunAtAll;
-
- // wait for the semaphore to be posted from Run()
- pthread->m_semRun.Wait();
-
- // test whether we should run the run at all - may be it was deleted
- // before it started to Run()?
- {
- wxCriticalSectionLocker lock(thread->m_critsect);
-
- dontRunAtAll = pthread->GetState() == STATE_NEW &&
- pthread->WasCancelled();
- }
-
- if ( !dontRunAtAll )
- {
- pthread->m_exitcode = thread->Entry();
-
- {
- wxCriticalSectionLocker lock(thread->m_critsect);
- pthread->SetState(STATE_EXITED);
- }
- }
-
- if ( dontRunAtAll )
- {
- if ( pthread->m_isDetached )
- delete thread;
-
- return -1 ;
- }
- else
- {
- // on mac for the running code the correct thread termination is to
- // return
-
- // terminate the thread
- thread->Exit(pthread->m_exitcode);
-
- return (OSStatus) NULL ; // pthread->m_exitcode;
- }
-}
-
-bool wxThreadInternal::Create(wxThread *thread, unsigned int stackSize)
-{
- wxMacMPThreadsInitVerify() ;
- wxASSERT_MSG( m_state == STATE_NEW && !m_tid,
- _T("Create()ing thread twice?") );
-
- OSStatus err = noErr ;
- m_thread = thread;
-
- if ( m_notifyQueueId == kInvalidID )
- {
- OSStatus err = MPCreateQueue( & m_notifyQueueId);
- if( err)
- {
- wxLogSysError(_("Cant create the thread event queue"));
- return false;
- }
- }
-
- m_state = STATE_NEW;
-
- err = MPCreateTask( MacThreadStart,
- (void*) m_thread,
- stackSize,
- m_notifyQueueId,
- &m_exitcode,
- 0,
- 0,
- &m_tid);
-
- if ( err)
- {
- wxLogSysError(_("Can't create thread"));
- return false;
- }
-
- if ( m_prio != WXTHREAD_DEFAULT_PRIORITY )
- {
- SetPriority(m_prio);
- }
-
- return true;
-}
-
-void wxThreadInternal::SetPriority( int priority)
-{
- m_prio = priority;
-
- if ( m_tid)
- {
- // Mac priorities range from 1 to 10,000, with a default of 100.
- // wxWidgets priorities range from 0 to 100 with a default of 50.
- // We can map wxWidgets to Mac priorities easily by assuming
- // the former uses a logarithmic scale.
- const unsigned int macPriority = ( int)( exp( priority / 25.0 * log( 10.0)) + 0.5);
-
- MPSetTaskWeight( m_tid, macPriority);
- }
-}
-
-wxThreadError wxThreadInternal::Run()
-{
- wxCHECK_MSG( GetState() == STATE_NEW, wxTHREAD_RUNNING,
- wxT("thread may only be started once after Create()") );
-
- SetState(STATE_RUNNING);
-
- // wake up threads waiting for our start
- SignalRun();
-
- return wxTHREAD_NO_ERROR;
-}
-
-void wxThreadInternal::Wait()
-{
- wxCHECK_RET( !m_isDetached, _T("can't wait for a detached thread") );
-
- // if the thread we're waiting for is waiting for the GUI mutex, we will
- // deadlock so make sure we release it temporarily
- if ( wxThread::IsMain() )
- wxMutexGuiLeave();
-
- {
- wxCriticalSectionLocker lock(m_csJoinFlag);
-
- if ( m_shouldBeJoined )
- {
- void * param1;
- void * param2;
- void * rc;
-
- OSStatus err = MPWaitOnQueue ( m_notifyQueueId,
- & param1,
- & param2,
- & rc,
- kDurationForever);
- if ( err)
- {
- wxLogSysError( _( "Cannot wait for thread termination."));
- rc = (void*) -1;
- }
-
- // actually param1 would be the address of m_exitcode
- // but we don't need this here
- m_exitcode = rc;
-
- m_shouldBeJoined = false;
- }
- }
-
- // reacquire GUI mutex
- if ( wxThread::IsMain() )
- wxMutexGuiEnter();
-}
-
-void wxThreadInternal::Pause()
-{
- // the state is set from the thread which pauses us first, this function
- // is called later so the state should have been already set
- wxCHECK_RET( m_state == STATE_PAUSED,
- wxT("thread must first be paused with wxThread::Pause().") );
-
- // wait until the semaphore is Post()ed from Resume()
- m_semSuspend.Wait();
-}
-
-void wxThreadInternal::Resume()
-{
- wxCHECK_RET( m_state == STATE_PAUSED,
- wxT("can't resume thread which is not suspended.") );
-
- // the thread might be not actually paused yet - if there were no call to
- // TestDestroy() since the last call to Pause() for example
- if ( IsReallyPaused() )
- {
- // wake up Pause()
- m_semSuspend.Post();
-
- // reset the flag
- SetReallyPaused(FALSE);
- }
-
- SetState(STATE_RUNNING);
-}
-
-// static functions
-// ----------------
-
-wxThread *wxThread::This()
-{
- wxThread* thr = (wxThread*) MPGetTaskStorageValue( gs_tlsForWXThread ) ;
- return thr;
-}
-
-bool wxThread::IsMain()
-{
- return GetCurrentId() == gs_idMainThread;
-}
-
-#ifdef Yield
-#undef Yield
-#endif
-
-void wxThread::Yield()
-{
-#if TARGET_API_MAC_OSX
- CFRunLoopRunInMode( kCFRunLoopDefaultMode , 0 , true ) ;
-#endif
- MPYield();
-}
-
-
-void wxThread::Sleep(unsigned long milliseconds)
-{
- AbsoluteTime wakeup = AddDurationToAbsolute( milliseconds, UpTime());
- MPDelayUntil( & wakeup);
-}
-
-
-int wxThread::GetCPUCount()
-{
- return MPProcessors();
-}
-
-unsigned long wxThread::GetCurrentId()
-{
- return (unsigned long)MPCurrentTaskID();
-}
-
-
-bool wxThread::SetConcurrency(size_t level)
-{
- // Cannot be set in MacOS.
- return false;
-}
-
-
-wxThread::wxThread(wxThreadKind kind)
-{
- g_numberOfThreads++;
- m_internal = new wxThreadInternal();
-
- m_isDetached = (kind == wxTHREAD_DETACHED);
-}
-
-wxThread::~wxThread()
-{
- wxASSERT_MSG( g_numberOfThreads>0 , wxT("More threads deleted than created.") ) ;
- g_numberOfThreads--;
-
-#ifdef __WXDEBUG__
- m_critsect.Enter();
-
- // check that the thread either exited or couldn't be created
- if ( m_internal->GetState() != STATE_EXITED &&
- m_internal->GetState() != STATE_NEW )
- {
- wxLogDebug(_T("The thread %ld is being destroyed although it is still running! The application may crash."), GetId());
- }
-
- m_critsect.Leave();
-#endif // __WXDEBUG__
-
- wxDELETE( m_internal ) ;
-}
-
-
-wxThreadError wxThread::Create(unsigned int stackSize)
-{
- wxCriticalSectionLocker lock(m_critsect);
-
- if ( m_isDetached )
- {
- m_internal->Detach() ;
- }
- if ( m_internal->Create(this, stackSize) == false )
- {
- m_internal->SetState(STATE_EXITED);
- return wxTHREAD_NO_RESOURCE;
- }
-
- return wxTHREAD_NO_ERROR;
-}
-
-wxThreadError wxThread::Run()
-{
- wxCriticalSectionLocker lock(m_critsect);
-
- wxCHECK_MSG( m_internal->GetId(), wxTHREAD_MISC_ERROR,
- wxT("must call wxThread::Create() first") );
-
- return m_internal->Run();
-}
-
-// -----------------------------------------------------------------------------
-// pause/resume
-// -----------------------------------------------------------------------------
-
-wxThreadError wxThread::Pause()
-{
- wxCHECK_MSG( This() != this, wxTHREAD_MISC_ERROR,
- _T("a thread can't pause itself") );
-
- wxCriticalSectionLocker lock(m_critsect);
-
- if ( m_internal->GetState() != STATE_RUNNING )
- {
- wxLogDebug(wxT("Can't pause thread which is not running."));
-
- return wxTHREAD_NOT_RUNNING;
- }
-
- // just set a flag, the thread will be really paused only during the next
- // call to TestDestroy()
- m_internal->SetState(STATE_PAUSED);
-
- return wxTHREAD_NO_ERROR;
-}
-
-wxThreadError wxThread::Resume()
-{
- wxCHECK_MSG( This() != this, wxTHREAD_MISC_ERROR,
- _T("a thread can't resume itself") );
-
- wxCriticalSectionLocker lock(m_critsect);
-
- wxThreadState state = m_internal->GetState();
-
- switch ( state )
- {
- case STATE_PAUSED:
- m_internal->Resume();
- return wxTHREAD_NO_ERROR;
- case STATE_EXITED:
- return wxTHREAD_NO_ERROR;
-
- default:
- wxLogDebug(_T("Attempt to resume a thread which is not paused."));
-
- return wxTHREAD_MISC_ERROR;
- }
-}
-
-// -----------------------------------------------------------------------------
-// exiting thread
-// -----------------------------------------------------------------------------
-
-wxThread::ExitCode wxThread::Wait()
-{
- wxCHECK_MSG( This() != this, (ExitCode)-1,
- _T("a thread can't wait for itself") );
-
- wxCHECK_MSG( !m_isDetached, (ExitCode)-1,
- _T("can't wait for detached thread") );
-
- m_internal->Wait();
-
- return m_internal->GetExitCode();
-}
-
-wxThreadError wxThread::Delete(ExitCode *rc)
-{
- wxCHECK_MSG( This() != this, wxTHREAD_MISC_ERROR,
- _T("a thread can't delete itself") );
-
- bool isDetached = m_isDetached;
-
- m_critsect.Enter();
- wxThreadState state = m_internal->GetState();
-
- // ask the thread to stop
- m_internal->SetCancelFlag();
-
- m_critsect.Leave();
-
- switch ( state )
- {
- case STATE_NEW:
- // we need to wake up the thread so that PthreadStart() will
- // terminate - right now it's blocking on run semaphore in
- // PthreadStart()
- m_internal->SignalRun();
-
- // fall through
-
- case STATE_EXITED:
- // nothing to do
- break;
-
- case STATE_PAUSED:
- // resume the thread first
- m_internal->Resume();
-
- // fall through
-
- default:
- if ( !isDetached )
- {
- // wait until the thread stops
- m_internal->Wait();
-
- if ( rc )
- {
- // return the exit code of the thread
- *rc = m_internal->GetExitCode();
- }
- }
- //else: can't wait for detached threads
- }
-
- return wxTHREAD_NO_ERROR;
-}
-
-wxThreadError wxThread::Kill()
-{
- wxCHECK_MSG( This() != this, wxTHREAD_MISC_ERROR,
- _T("a thread can't kill itself") );
-
- switch ( m_internal->GetState() )
- {
- case STATE_NEW:
- case STATE_EXITED:
- return wxTHREAD_NOT_RUNNING;
-
- case STATE_PAUSED:
- // resume the thread first
- Resume();
-
- // fall through
-
- default:
- OSStatus err = MPTerminateTask( m_internal->GetId() , -1 ) ;
- if ( err )
- {
- wxLogError(_("Failed to terminate a thread."));
-
- return wxTHREAD_MISC_ERROR;
- }
-
- if ( m_isDetached )
- {
- delete this ;
- }
- else
- {
- // this should be retrieved by Wait actually
- m_internal->SetExitCode((void*)-1);
- }
-
- return wxTHREAD_NO_ERROR;
- }
-}
-
-void wxThread::Exit(ExitCode status)
-{
- wxASSERT_MSG( This() == this,
- _T("wxThread::Exit() can only be called in the context of the same thread") );
-
- // don't enter m_critsect before calling OnExit() because the user code
- // might deadlock if, for example, it signals a condition in OnExit() (a
- // common case) while the main thread calls any of functions entering
- // m_critsect on us (almost all of them do)
- OnExit();
-
- MPTerminateTask( m_internal->GetId() , (long) status) ;
-
- if ( IsDetached() )
- {
- delete this;
- }
- else // joinable
- {
- // update the status of the joinable thread
- wxCriticalSectionLocker lock(m_critsect);
- m_internal->SetState(STATE_EXITED);
- }
-}
-
-// also test whether we were paused
-bool wxThread::TestDestroy()
-{
- wxASSERT_MSG( This() == this,
- _T("wxThread::TestDestroy() can only be called in the context of the same thread") );
-
- m_critsect.Enter();
-
- if ( m_internal->GetState() == STATE_PAUSED )
- {
- m_internal->SetReallyPaused(TRUE);
-
- // leave the crit section or the other threads will stop too if they
- // try to call any of (seemingly harmless) IsXXX() functions while we
- // sleep
- m_critsect.Leave();
-
- m_internal->Pause();
- }
- else
- {
- // thread wasn't requested to pause, nothing to do
- m_critsect.Leave();
- }
-
- return m_internal->WasCancelled();
-}
-
-// -----------------------------------------------------------------------------
-// priority setting
-// -----------------------------------------------------------------------------
-
-void wxThread::SetPriority(unsigned int prio)
-{
- wxCHECK_RET( ((int)WXTHREAD_MIN_PRIORITY <= (int)prio) &&
- ((int)prio <= (int)WXTHREAD_MAX_PRIORITY),
- wxT("invalid thread priority") );
-
- wxCriticalSectionLocker lock(m_critsect);
-
- switch ( m_internal->GetState() )
- {
- case STATE_RUNNING:
- case STATE_PAUSED:
- case STATE_NEW:
- // thread not yet started, priority will be set when it is
- m_internal->SetPriority(prio);
- break;
-
- case STATE_EXITED:
- default:
- wxFAIL_MSG(wxT("impossible to set thread priority in this state"));
- }
-}
-
-unsigned int wxThread::GetPriority() const
-{
- wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
-
- return m_internal->GetPriority();
-}
-
-unsigned long wxThread::GetId() const
-{
- wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
-
- return (unsigned long)m_internal->GetId();
-}
-
-// -----------------------------------------------------------------------------
-// state tests
-// -----------------------------------------------------------------------------
-
-bool wxThread::IsRunning() const
-{
- wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
-
- return m_internal->GetState() == STATE_RUNNING;
-}
-
-bool wxThread::IsAlive() const
-{
- wxCriticalSectionLocker lock((wxCriticalSection&)m_critsect);
-
- switch ( m_internal->GetState() )
- {
- case STATE_RUNNING:
- case STATE_PAUSED:
- return true;
-
- default:
- return false;
- }
-}
-
-bool wxThread::IsPaused() const
-{
- wxCriticalSectionLocker lock((wxCriticalSection&)m_critsect);
-
- return (m_internal->GetState() == STATE_PAUSED);
-}
-
-// ----------------------------------------------------------------------------
-// Automatic initialization for thread module
-// ----------------------------------------------------------------------------
-
-class wxThreadModule : public wxModule
-{
-public:
- virtual bool OnInit();
- virtual void OnExit();
-
-private:
- DECLARE_DYNAMIC_CLASS(wxThreadModule)
-};
-
-IMPLEMENT_DYNAMIC_CLASS(wxThreadModule, wxModule)
-
-bool wxThreadModule::OnInit()
-{
- if ( !wxMacMPThreadsInitVerify() )
- {
- return false ;
- }
-
- verify_noerr( MPAllocateTaskStorageIndex( &gs_tlsForWXThread ) ) ;
- // main thread's This() is NULL
- verify_noerr( MPSetTaskStorageValue( gs_tlsForWXThread , NULL ) ) ;
-
- gs_idMainThread = wxThread::GetCurrentId() ;
-
- gs_critsectWaitingForGui = new wxCriticalSection();
-
- gs_critsectGui = new wxCriticalSection();
- gs_critsectGui->Enter();
-
- return true;
-}
-
-void wxThreadModule::OnExit()
-{
- if ( gs_critsectGui )
- {
- gs_critsectGui->Leave();
- delete gs_critsectGui;
- gs_critsectGui = NULL;
- }
-
- delete gs_critsectWaitingForGui;
- gs_critsectWaitingForGui = NULL;
-}
-
-// ----------------------------------------------------------------------------
-// GUI Serialization copied from MSW implementation
-// ----------------------------------------------------------------------------
-
-void WXDLLIMPEXP_BASE wxMutexGuiEnter()
-{
- // this would dead lock everything...
- wxASSERT_MSG( !wxThread::IsMain(),
- wxT("main thread doesn't want to block in wxMutexGuiEnter()!") );
-
- // the order in which we enter the critical sections here is crucial!!
-
- // set the flag telling to the main thread that we want to do some GUI
- {
- wxCriticalSectionLocker enter(*gs_critsectWaitingForGui);
-
- gs_nWaitingForGui++;
- }
-
- wxWakeUpMainThread();
-
- // now we may block here because the main thread will soon let us in
- // (during the next iteration of OnIdle())
- gs_critsectGui->Enter();
-}
-
-void WXDLLIMPEXP_BASE wxMutexGuiLeave()
-{
- wxCriticalSectionLocker enter(*gs_critsectWaitingForGui);
-
- if ( wxThread::IsMain() )
- {
- gs_bGuiOwnedByMainThread = false;
- }
- else
- {
- // decrement the number of threads waiting for GUI access now
- wxASSERT_MSG( gs_nWaitingForGui > 0,
- wxT("calling wxMutexGuiLeave() without entering it first?") );
-
- gs_nWaitingForGui--;
-
- wxWakeUpMainThread();
- }
-
- gs_critsectGui->Leave();
-}
-
-void WXDLLIMPEXP_BASE wxMutexGuiLeaveOrEnter()
-{
- wxASSERT_MSG( wxThread::IsMain(),
- wxT("only main thread may call wxMutexGuiLeaveOrEnter()!") );
-
- wxCriticalSectionLocker enter(*gs_critsectWaitingForGui);
-
- if ( gs_nWaitingForGui == 0 )
- {
- // no threads are waiting for GUI - so we may acquire the lock without
- // any danger (but only if we don't already have it)
- if ( !wxGuiOwnedByMainThread() )
- {
- gs_critsectGui->Enter();
-
- gs_bGuiOwnedByMainThread = true;
- }
- //else: already have it, nothing to do
- }
- else
- {
- // some threads are waiting, release the GUI lock if we have it
- if ( wxGuiOwnedByMainThread() )
- {
- wxMutexGuiLeave();
- }
- //else: some other worker thread is doing GUI
- }
-}
-
-bool WXDLLIMPEXP_BASE wxGuiOwnedByMainThread()
-{
- return gs_bGuiOwnedByMainThread;
-}
-
-// wake up the main thread
-void WXDLLEXPORT wxWakeUpMainThread()
-{
- wxMacWakeUp() ;
-}
-
-// ----------------------------------------------------------------------------
-// include common implementation code
-// ----------------------------------------------------------------------------
-
-#include "wx/thrimpl.cpp"
-
-#endif // wxUSE_THREADS
projects / wxWidgets.git / commitdiff
