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/*********************************************************************
Project : GUSI - Grand Unified Socket Interface
File : GUSIDispatch.cp- Dispatch calls to their correct recipient
Author : Matthias Neeracher
Language: MPW C/C++
$Log$
Revision 1.1 2000/09/12 20:24:47 jack
Moved to Unsupported.
Revision 1.1 1998/08/18 14:52:37 jack
Putting Python-specific GUSI modifications under CVS.
Revision 1.4 1994/12/30 19:48:09 neeri
Remove (theoretical) support for pre-System 6 systems.
Remove built-in support for INETd.
Fix problems in connection with ROM PowerPC library.
Move open() to GUSIFileDispatch.cp.
Support AF_UNSPEC domains.
More work on spinning performance.
Revision 1.3 1994/08/10 00:30:30 neeri
Sanitized for universal headers.
Prevent overly fast spinning.
Revision 1.2 1994/05/01 23:47:34 neeri
Extend fflush() kludge.
Define _lastbuf for MPW 3.2 compatibility.
Revision 1.1 1994/02/25 02:28:36 neeri
Initial revision
Revision 0.27 1993/11/24 00:00:00 neeri
Flush stdio before closing
Revision 0.26 1993/11/22 00:00:00 neeri
Extend two time loser for EBADF
Revision 0.25 1993/11/12 00:00:00 neeri
Two time loser workaround for flush bug
Revision 0.24 1993/06/27 00:00:00 neeri
{pre,post}_select
Revision 0.23 1993/06/27 00:00:00 neeri
ftruncate
Revision 0.22 1993/06/20 00:00:00 neeri
Further subtleties in console handling
Revision 0.21 1993/05/21 00:00:00 neeri
Suffixes
Revision 0.20 1993/05/15 00:00:00 neeri
Try to keep errno always set on error returns
Revision 0.19 1993/05/13 00:00:00 neeri
Limit Search for configuration resource to application
Revision 0.18 1993/01/31 00:00:00 neeri
Introducing daemons (pleased to meet you, hope you guess my name)
Revision 0.17 1993/01/17 00:00:00 neeri
Be more careful about user aborts.
Revision 0.16 1993/01/03 00:00:00 neeri
GUSIConfiguration
Revision 0.15 1992/11/25 00:00:00 neeri
Still trying to get standard descriptors for standalone programs right. sigh.
Revision 0.14 1992/10/05 00:00:00 neeri
Small fix in event dispatching
Revision 0.13 1992/09/12 00:00:00 neeri
getdtablesize()
Revision 0.12 1992/08/30 00:00:00 neeri
Move hasPPC to GUSIPPC.cp, AppleTalkIdentity
Revision 0.11 1992/08/05 00:00:00 neeri
Change the way standard I/O channels are opened
Revision 0.10 1992/08/03 00:00:00 neeri
Move Scatter/Gather to GUSIBuffer.cp
Revision 0.9 1992/07/30 00:00:00 neeri
Features with initializers
Revision 0.8 1992/07/13 00:00:00 neeri
hasProcessMgr
Revision 0.7 1992/06/27 00:00:00 neeri
choose(), hasNewSF
Revision 0.6 1992/06/06 00:00:00 neeri
Feature
Revision 0.5 1992/04/19 00:00:00 neeri
C++ Rewrite
Revision 0.4 1992/04/18 00:00:00 neeri
Changed read/write/send/recv dispatchers
Revision 0.3 1992/04/17 00:00:00 neeri
Spin routines
Revision 0.2 1992/04/16 00:00:00 neeri
User interrupt stuff
Revision 0.1 1992/03/31 00:00:00 neeri
unix domain socket calls
*********************************************************************/
#include "GUSIFile_P.h"
#include "GUSIMPW_P.h"
#include <SetJmp.h>
#include <Signal.h>
#include <CursorCtl.h>
#include <Resources.h>
#include <Events.h>
#include <Windows.h>
#include <Finder.h>
#include <Script.h>
#include <Events.h>
#include <Traps.h>
#include <CommResources.h>
#include <CTBUtilities.h>
#include <Connections.h>
#include <FileTransfers.h>
#include <Terminals.h>
#include <EPPC.h>
#include <PLStringFuncs.h>
#include <LowMem.h>
#include <Processes.h>
#if GENERATINGCFM
#include <CodeFragments.h>
#endif
#pragma segment GUSI
/***************************** Globals ******************************/
GUSIConfiguration GUSIConfig; // Change the order of these declarations
SocketTable Sockets; // and you'll regret it (ARM <20>12.6.1)
GUSISpinFn GUSISpin = GUSIDefaultSpin;
GUSIExecFn GUSIExec = GUSIDefaultExec;
GUSIFTypeFn GUSIFType = (GUSIFTypeFn)0;
long gGUSISpeed = 1;
static GUSIEvtHandler * evtHandler = nil;
static short evtMask = 0;
static int errorSock = -1;
static int errorType = 0;
static int errorCount = 0;
const int errorMax = 3;
Boolean CatchStdIO = false;
Feature hasMakeFSSpec(
gestaltFSAttr,
(1<<gestaltHasFSSpecCalls),
(1<<gestaltHasFSSpecCalls));
Feature hasAlias(
gestaltAliasMgrAttr,
(1<<gestaltAliasMgrPresent),
(1<<gestaltAliasMgrPresent));
Feature hasNewSF(
gestaltStandardFileAttr,
(1<<gestaltStandardFile58),
(1<<gestaltStandardFile58));
Feature hasProcessMgr(
gestaltOSAttr,
(1<<gestaltLaunchControl),
(1<<gestaltLaunchControl));
Feature hasCRM_P(
gestaltCRMAttr,
(1<<gestaltCRMPresent),
(1<<gestaltCRMPresent));
Feature hasCRM(hasCRM_P, InitCRM);
Feature hasCTB(hasCRM, InitCTBUtilities);
Feature hasStdNBP_P(
gestaltStdNBPAttr,
(1<<gestaltStdNBPPresent),
(1<<gestaltStdNBPPresent));
Feature hasStdNBP(hasCTB, hasStdNBP_P);
Feature hasAppleEvents(
gestaltAppleEventsAttr,
(1<<gestaltAppleEventsPresent),
(1<<gestaltAppleEventsPresent));
Feature hasRevisedTimeMgr(
gestaltTimeMgrVersion,
2L);
/*********************** Error propagation ************************/
#ifdef GUSI_DISPATCH
inline
#endif
int GUSI_error(int err)
{
if (err)
errno = err;
return -1;
}
#ifdef GUSI_DISPATCH
inline
#endif
void * GUSI_error_nil(int err)
{
if (err)
errno = err;
return nil;
}
/*********************** GUSIConfiguration members ************************/
#ifndef GUSI_DISPATCH
Boolean GUSIConfiguration::firstTime = false;
short GUSIConfiguration::we;
void GUSIConfiguration::GUSILoadConfiguration(Handle h)
{
typedef GUSIConfigRsrc ** GUSIConfHdl;
GUSIConfHdl config = GUSIConfHdl(h);
long confSize = config ? GetHandleSize(Handle(config)) : 0;
if (confSize < 4 || !(defaultType = (*config)->defaultType))
defaultType = 'TEXT';
if (confSize < 8 || !(defaultCreator = (*config)->defaultCreator))
defaultCreator = 'MPS ';
if (confSize < 9)
autoSpin = 1; // do automatic spin on read/write
else
autoSpin = (*config)->autoSpin;
if (confSize < 14)
version = '0102';
else
version = (*config)->version;
if (confSize < 10) {
noChdir = false; // Use chdir()
accurStat = false; // st_nlink = # of entries + 2
hasConsole = false;
noAutoInitGraf = false;
sharedOpen = false;
sigPipe = false;
noAppleEvents = false;
delayConsole = false;
} else {
noChdir = ((*config)->flags & 0x80) != 0;
accurStat = ((*config)->flags & 0x40) != 0;
hasConsole = version >= '0150' && version <= '0180' && ((*config)->flags & 0x08) != 0;
delayConsole = version >= '0181' && ((*config)->flags & 0x20) != 0;
noAppleEvents = version >= '0181' && ((*config)->flags & 0x08) != 0;
noAutoInitGraf = version >= '0174' && ((*config)->flags & 0x04) != 0;
sharedOpen = version >= '0174' && ((*config)->flags & 0x02) != 0;
sigPipe = version >= '0174' && ((*config)->flags & 0x01) != 0;
}
if (version < '0120' || confSize < 16)
numSuffices = 0;
else
numSuffices = (*config)->numSuffices;
if (!numSuffices)
suffices = nil;
else if (suffices = new GUSISuffix[numSuffices]) {
HLock((Handle)config);
memcpy(suffices, (*config)->suffices, numSuffices*sizeof(GUSISuffix));
for (int i=0; i<numSuffices; i++)
for (int j=0; j<4; j++)
if (((char *) (suffices+i))[j] == ' ')
((char *) (suffices+i))[j] = 0;
}
}
GUSIConfiguration::GUSIConfiguration()
{
short oldResFile = CurResFile();
if (!firstTime)
we = oldResFile;
else
UseResFile(we);
Handle config = Get1Resource('GU<EFBFBD>I', GUSIRsrcID);
GUSILoadConfiguration(config);
if (!firstTime) {
firstTime = true;
if (!noChdir)
chdir(":");
} else
UseResFile(oldResFile);
ReleaseResource((Handle)config);
}
void GUSIConfiguration::SetDefaultFType(const TFileSpec & name) const
{
FInfo info;
//
// Custom hook if existing
//
if (GUSIFType && GUSIFType(name))
return;
//
// Otherwise default behaviour
//
if (HGetFInfo(name.vRefNum, name.parID, name.name, &info))
return;
Ptr dot = PLstrrchr(name.name, '.');
if (dot && (name.name[0] - (dot-Ptr(name.name))) <= 4) {
char searchsuffix[5];
strncpy(searchsuffix, dot+1, name.name[0] - (dot-Ptr(name.name)));
for (int i = 0; i<numSuffices; i++)
if (!strncmp(suffices[i].suffix, searchsuffix, 4)) {
info.fdType = suffices[i].suffType;
info.fdCreator = suffices[i].suffCreator;
goto determined;
}
}
info.fdType = defaultType;
info.fdCreator = defaultCreator;
info.fdFlags &= ~kHasBeenInited;
determined:
HSetFInfo(name.vRefNum, name.parID, name.name, &info);
}
void GUSIConfiguration::DoAutoInitGraf() const
{
if (*(GrafPtr **) LMGetCurrentA5() != &qd.thePort)
InitGraf(&qd.thePort);
const_cast<GUSIConfiguration *>(this)->noAutoInitGraf = true;
}
#endif // GUSI_DISPATCH
inline void GUSIConfiguration::DoAutoSpin() const
{
if (autoSpin)
SAFESPIN(0, SP_AUTO_SPIN, autoSpin);
}
Boolean GUSIConfiguration::DelayConsole() const
{
return delayConsole;
}
/************************ Handle nonstandard consoles *************************/
#ifndef GUSI_DISPATCH
static void InitConsole()
{
if (MPWDomain::stdopen) {
for (int i = 0; i < 3; i++) {
Socket * sock = MPWDomain::stdopen(i);
if (sock)
Sockets.Install(sock);
}
} else {
if (open("dev:console", O_RDONLY) < 0)
open("dev:null", O_RDONLY);
if (open("dev:console", O_WRONLY) < 0)
open("dev:null", O_WRONLY);
if (open("dev:console", O_WRONLY) < 0)
open("dev:null", O_WRONLY);
}
}
void SocketTable::InitConsole()
{
if (needsConsole) {
needsConsole = false;
::InitConsole();
}
}
#endif // GUSI_DISPATCH
/************************ External routines *************************/
int getdtablesize()
{
return GUSI_MAX_FD;
}
int socket(int domain, int type, int protocol)
{
SocketDomain * dom;
Socket * sock;
int fd;
Sockets.InitConsole();
if (dom = SocketDomain::Domain(domain))
if (sock = dom->socket(type, protocol))
if ((fd = Sockets.Install(sock)) != -1)
return fd;
else
delete sock;
if (!errno)
return GUSI_error(ENOMEM);
else
return -1;
}
int socketpair(int domain, int type, int protocol, int * sv)
{
SocketDomain * dom;
Socket * sock[2];
Sockets.InitConsole();
if (dom = SocketDomain::Domain(domain))
if (!dom->socketpair(type, protocol, sock))
if ((sv[0] = Sockets.Install(sock[0])) != -1)
if ((sv[1] = Sockets.Install(sock[1])) != -1)
return 0;
else {
Sockets.Remove(sv[0]);
goto failInstall;
}
else {
failInstall:
delete sock[0];
delete sock[1];
}
if (!errno)
return GUSI_error(ENOMEM);
else
return -1;
}
int pipe(int * fd)
{
GUSIwithUnixSockets();
if (socketpair(AF_UNIX, SOCK_STREAM, 0, fd))
return -1;
shutdown(fd[0], 1);
shutdown(fd[1], 0);
return 0;
}
int choose(int domain, int type, char * prompt, void * constraint, int flags, void * name, int * namelen)
{
SocketDomain * dom;
if (dom = SocketDomain::Domain(domain))
return dom->choose(type, prompt, constraint, flags, name, namelen);
return -1;
}
int bind(int s, const struct sockaddr *name, int namelen)
{
Socket * sock = Sockets[s];
return sock ? sock->bind((void *) name, namelen) : -1;
}
int connect(int s, const struct sockaddr *addr, int addrlen)
{
Socket * sock = Sockets[s];
return sock ? sock->connect((void *) addr, addrlen) : -1;
}
int listen(int s, int qlen)
{
Socket * sock = Sockets[s];
return sock ? sock->listen(qlen) : -1;
}
int accept(int s, struct sockaddr *addr, int *addrlen)
{
Socket * sock = Sockets[s];
if (sock)
if (sock = sock->accept(addr, addrlen))
if ((s = Sockets.Install(sock)) != -1)
return s;
else
delete sock;
return -1;
}
int close(int s)
{
errorSock = -1;
return Sockets.Remove(s);
}
#ifdef __MWERKS__
int read(int s, char *buffer, int buflen)
#else
int read(int s, char *buffer, unsigned buflen)
#endif
{
GUSIConfig.DoAutoSpin();
Socket * sock = Sockets[s];
return sock ? sock->read(buffer, (unsigned) buflen) : -1;
}
int readv(int s, const struct iovec *iov, int count)
{
GUSIConfig.DoAutoSpin();
Socket * sock = Sockets[s];
if (sock) {
Scatterer scatt(iov, count);
if (scatt)
return scatt.length(sock->read(scatt.buffer(), scatt.buflen()));
else
return GUSI_error(ENOMEM);
} else
return -1;
}
int recv(int s, void *buffer, int buflen, int flags)
{
GUSIConfig.DoAutoSpin();
int fromlen = 0;
Socket * sock = Sockets[s];
return sock ? sock->recvfrom(buffer, buflen, flags, nil, &fromlen) : -1;
}
int recvfrom(int s, void *buffer, int buflen, int flags, struct sockaddr *from, int *fromlen)
{
GUSIConfig.DoAutoSpin();
Socket * sock = Sockets[s];
return sock ? sock->recvfrom(buffer, buflen, flags, from, fromlen) : -1;
}
int recvmsg(int s, struct msghdr *msg, int flags)
{
GUSIConfig.DoAutoSpin();
Socket * sock = Sockets[s];
if (sock) {
Scatterer scatt((struct iovec *)msg->msg_iov, msg->msg_iovlen);
if (scatt)
return
scatt.length(
sock->recvfrom(
scatt.buffer(),
scatt.buflen(),
flags,
msg->msg_name,
(int *)&msg->msg_namelen));
else
return GUSI_error(ENOMEM);
} else
return -1;
}
#ifdef __MWERKS__
int write(int s, const char *buffer, int buflen)
#else
int write(int s, const char *buffer, unsigned buflen)
#endif
{
/* fflush() in the MPW stdio library doesn't take no for an answer.
Our workaround is to treat a second subsequent ESHUTDOWN or EBADF as
an invitation to lie by pretending the write worked.
*/
int len;
GUSIConfig.DoAutoSpin();
Socket * sock = Sockets[s];
if (sock && (len = sock->write((char *) buffer, (unsigned) buflen)) != -1)
return len;
switch (errno) {
case EINTR:
case EWOULDBLOCK:
case EINPROGRESS:
case EALREADY:
break;
default:
if (GUSIConfig.sigPipe)
raise(SIGPIPE);
if (errorSock == s && errorType == errno) {
if (++errorCount == errorMax) {
errorSock = -1;
return buflen;
}
} else {
errorSock = s;
errorType = errno;
errorCount= 1;
}
}
return -1;
}
static int HandleWriteErrors(int retval)
{
if (retval == -1)
switch (errno) {
case EINTR:
case EWOULDBLOCK:
case EINPROGRESS:
case EALREADY:
break;
default:
if (GUSIConfig.sigPipe)
raise(SIGPIPE);
break;
}
return retval;
}
int writev(int s, const struct iovec *iov, int count)
{
GUSIConfig.DoAutoSpin();
Socket * sock = Sockets[s];
if (sock) {
Gatherer gath(iov, count);
if (gath)
return HandleWriteErrors(gath.length(sock->write(gath.buffer(), gath.buflen())));
else
return GUSI_error(ENOMEM);
} else
return -1;
}
int send(int s, const void *buffer, int buflen, int flags)
{
GUSIConfig.DoAutoSpin();
Socket * sock = Sockets[s];
return sock ? HandleWriteErrors(sock->sendto((void *)buffer, buflen, flags, nil, 0)) : -1;
}
int sendto(int s, const void *buffer, int buflen, int flags, const struct sockaddr *to, int tolen)
{
GUSIConfig.DoAutoSpin();
Socket * sock = Sockets[s];
return sock ? HandleWriteErrors(sock->sendto((void *)buffer, buflen, flags, (void *) to, tolen)) : -1;
}
int sendmsg(int s, const struct msghdr *msg, int flags)
{
GUSIConfig.DoAutoSpin();
Socket * sock = Sockets[s];
if (sock) {
Gatherer gath((struct iovec *) msg->msg_iov, msg->msg_iovlen);
if (gath)
return
HandleWriteErrors(gath.length(
sock->sendto(
gath.buffer(),
gath.buflen(),
flags,
msg->msg_name,
msg->msg_namelen)));
else
return GUSI_error(ENOMEM);
} else
return -1;
}
int select(int width, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout)
{
Socket * sock;
long count;
int s;
long starttime, waittime;
fd_set rd, wd, ed;
Boolean r,w,e;
Boolean * canRead;
Boolean * canWrite;
Boolean * exception;
count = 0;
FD_ZERO(&rd);
FD_ZERO(&wd);
FD_ZERO(&ed);
if (timeout)
waittime = timeout->tv_sec*60 + timeout->tv_usec/16666;
else
waittime = 2000000000; // Slightly more than a year; close enough to "no timeout"
starttime = LMGetTicks();
// Check files for kosherness
for (s = 0; s < width ; ++s)
if ( (readfds && FD_ISSET(s,readfds))
|| (writefds && FD_ISSET(s,writefds))
|| (exceptfds && FD_ISSET(s,exceptfds))
)
if (!Sockets[s])
return GUSI_error(EBADF);
for (s = 0; s < width ; ++s)
if (sock = Sockets[s]) {
r = readfds && FD_ISSET(s,readfds);
w = writefds && FD_ISSET(s,writefds);
e = exceptfds && FD_ISSET(s,exceptfds);
if (r || w || e)
sock->pre_select(r, w, e);
}
do {
for (s = 0; s < width ; ++s) {
if (sock = Sockets[s]) {
r = false;
w = false;
e = false;
canRead = (readfds && FD_ISSET(s,readfds)) ? &r : nil;
canWrite = (writefds && FD_ISSET(s,writefds)) ? &w : nil;
exception = (exceptfds && FD_ISSET(s,exceptfds)) ? &e : nil;
if (canRead || canWrite || exception) {
count += sock->select(canRead, canWrite, exception);
if (r)
FD_SET(s,&rd);
if (w)
FD_SET(s,&wd);
if (e)
FD_SET(s,&ed);
}
}
}
if (count)
break;
SAVE_AND_CLEAR_ERRNO;
SAFESPIN(false, SP_SELECT, waittime);
if (errno) {
count = -1;
break;
}
} while (LMGetTicks() - starttime < waittime);
for (s = 0; s < width ; ++s)
if (sock = Sockets[s]) {
r = readfds && FD_ISSET(s,readfds);
w = writefds && FD_ISSET(s,writefds);
e = exceptfds && FD_ISSET(s,exceptfds);
if (r || w || e)
sock->post_select(r, w, e);
}
if (count < 0)
return GUSI_error(EINTR);
if (readfds)
*readfds = rd;
if (writefds)
*writefds = wd;
if (exceptfds)
*exceptfds = ed;
return count;
}
int getsockname(int s, struct sockaddr *name, int *namelen)
{
Socket * sock = Sockets[s];
return sock ? sock->getsockname(name, namelen) : -1;
}
int getpeername(int s, struct sockaddr *name, int *namelen)
{
Socket * sock = Sockets[s];
return sock ? sock->getpeername(name, namelen) : -1;
}
int shutdown(int s, int how)
{
Socket * sock = Sockets[s];
return sock ? sock->shutdown(how) : -1;
}
int fcntl(int s, unsigned int cmd, int arg)
{
Socket * sock = Sockets[s];
if (sock)
return (cmd == F_DUPFD) ? Sockets.Install(sock, arg) : sock->fcntl(cmd, arg);
else
return -1;
}
int dup(int s)
{
Socket * sock = Sockets[s];
return sock ? Sockets.Install(sock) : -1;
}
int dup2(int s, int s1)
{
Socket * sock = Sockets[s];
if (!sock)
return -1;
if (Sockets[s1])
Sockets.Remove(s1);
return Sockets.Install(sock, s1);
}
int ioctl(int s, unsigned int request, long *argp)
{
Socket * sock = Sockets[s];
if (!sock)
return -1;
return sock->ioctl(request, argp);
}
int getsockopt(int s, int level, int optname, void *optval, int * optlen)
{
Socket * sock = Sockets[s];
return sock ? sock->getsockopt(level, optname, optval, optlen) : -1;
}
int setsockopt(int s, int level, int optname, const void *optval, int optlen)
{
Socket * sock = Sockets[s];
return sock ? sock->setsockopt(level, optname, (void *) optval, optlen) : -1;
}
int fstat(int s, struct stat * buf)
{
Socket * sock = Sockets[s];
return sock ? sock->fstat(buf) : -1;
}
long lseek(int s, long offset, int whence)
{
Socket * sock = Sockets[s];
return sock ? sock->lseek(offset, whence) : -1;
}
int ftruncate(int s, long offset)
{
Socket * sock = Sockets[s];
return sock ? sock->ftruncate(offset) : -1;
}
int isatty(int s)
{
Socket * sock = Sockets[s];
return sock ? sock->isatty() : -1;
}
void GUSISetHook(GUSIHookCode code, GUSIHook hook)
{
switch (code) {
case GUSI_SpinHook:
GUSISpin = (GUSISpinFn) hook;
break;
case GUSI_ExecHook:
GUSIExec = (GUSIExecFn) hook;
break;
case GUSI_FTypeHook:
GUSIFType = (GUSIFTypeFn) hook;
break;
case GUSI_SpeedHook:
gGUSISpeed = (long) hook;
break;
}
}
GUSIHook GUSIGetHook(GUSIHookCode code)
{
switch (code) {
case GUSI_SpinHook:
return (GUSIHook) GUSISpin;
case GUSI_ExecHook:
return (GUSIHook) GUSIExec;
case GUSI_FTypeHook:
return (GUSIHook) GUSIFType;
case GUSI_SpeedHook:
return (GUSIHook) gGUSISpeed;
break;
default:
return (GUSIHook) nil;
}
}
int GUSISetEvents(GUSIEvtTable table)
{
short evt;
evtHandler = table;
evtMask = 0;
for (evt = 0; evt<16; ++evt)
if (evtHandler[evt])
evtMask |= 1 << evt;
return 0;
}
GUSIEvtHandler * GUSIGetEvents(void)
{
return evtHandler;
}
/*********************** SocketDomain members ***********************/
#ifndef GUSI_DISPATCH
SocketDomain * SocketDomain::domains[GUSI_MAX_DOMAIN];
ProcessSerialNumber SocketDomain::process;
SocketDomain * SocketDomain::Domain(int domain)
{
if (domain < 0 || domain >= GUSI_MAX_DOMAIN || !domains[domain]) {
GUSI_error(EINVAL);
return nil;
} else
return domains[domain];
}
void SocketDomain::Ready()
{
if (hasProcessMgr)
WakeUpProcess(&process);
}
SocketDomain::SocketDomain(int domain)
{
#ifdef PREVENT_DUPLICATE_DOMAINS
if (domains[domain]) {
Str63 msg;
sprintf((char *) msg+1, "Duplicate declaration for domain %d\n", domain);
msg[0] = (unsigned char)strlen((char *) msg+1);
DebugStr(msg);
}
#endif
if (domain) // Ignore AF_UNSPEC domains
domains[domain] = this;
if (hasProcessMgr && !process.highLongOfPSN && !process.lowLongOfPSN)
GetCurrentProcess(&process);
}
SocketDomain::~SocketDomain()
{
}
// Default implementations of socket() just returns an error
Socket * SocketDomain::socket(int, short)
{
GUSI_error(EOPNOTSUPP);
return nil;
}
// Same with socketpair
int SocketDomain::socketpair(int, short, Socket **)
{
return GUSI_error(EOPNOTSUPP);
}
int SocketDomain::choose(int, char *, void *, int, void *, int *)
{
return GUSI_error(EOPNOTSUPP);
}
void SocketDomain::DontStrip()
{
}
/*********************** SocketTable members ************************/
static void FlushStdio()
{
fwalk(fflush);
}
SocketTable::SocketTable()
{
atexit(FlushStdio);
needsConsole = true;
}
int SocketTable::Install(Socket * sock, int start)
{
short fd;
if (start<0 || start >= GUSI_MAX_FD)
return GUSI_error(EINVAL);
for (fd=start; fd<GUSI_MAX_FD; ++fd)
if (!sockets[fd]) {
sockets[fd] = sock;
++sock->refCount;
return fd;
}
return GUSI_error(EMFILE);
}
int SocketTable::Remove(int fd)
{
Socket * sock;
InitConsole();
if (fd<0 || fd >= GUSI_MAX_FD || !(sock = sockets[fd]))
return GUSI_error(EBADF);
sockets[fd] = nil;
if (!--sock->refCount)
delete sock;
return 0;
}
Socket * SocketTable::operator[](int fd)
{
Socket * sock;
InitConsole();
if (fd<0 || fd >= GUSI_MAX_FD || !(sock = sockets[fd])) {
GUSI_error(EBADF);
return nil;
} else
return sock;
}
#ifndef powerc
#pragma far_code
#endif
SocketTable::~SocketTable()
{
int i;
// Flush stdio files (necessary to flush buffers)
fwalk(fflush);
// If we didn't need a console so far, we certainly don't need one now!
// Doing this further up would be dangerous for small write only apps
needsConsole = false;
// Now close stdio files, just to be sure
fwalk(fclose);
// Close all files
for (i = 0; i<GUSI_MAX_FD; ++i)
if (sockets[i])
close(i);
}
#endif // GUSI_DISPATCH
/********************** sleep()/alarm() ***********************/
static long GUSIAlarm = 0;
int GUSICheckAlarm()
{
if (GUSIAlarm && LMGetTicks() > GUSIAlarm) {
GUSIAlarm = 0;
raise(SIGALRM);
return 1;
} else
return 0;
}
u_int alarm(u_int seconds)
{
long remaining = GUSIAlarm ? (LMGetTicks() - GUSIAlarm) / 60 : 0;
GUSIAlarm = seconds ? LMGetTicks() + 60 * seconds : 0;
return (remaining < 0) ? 0 : (u_int) remaining;
}
static u_int DoSleep(long ticks)
{
long wakeup = LMGetTicks() + ticks;
SAFESPIN(wakeup > LMGetTicks(), SP_SLEEP, wakeup - LMGetTicks());
long remaining = (LMGetTicks() - wakeup) / 60;
return (remaining < 0) ? 0 : (u_int) remaining;
}
u_int sleep(u_int seconds)
{
return DoSleep(seconds * 60);
}
void usleep(u_int useconds)
{
DoSleep((useconds * 3) / 50000);
}
/********************** Default spin function ***********************/
#ifndef GUSI_DISPATCH
#ifndef powerc
#pragma smart_code
#endif
/* Borrowed from tech note 263 */
#define kMaskModifiers 0xFE00 // we need the modifiers without the
// command key for KeyTrans
#define kMaskVirtualKey 0x0000FF00 // get virtual key from event message
// for KeyTrans
#define kUpKeyMask 0x0080
#define kShiftWord 8 // we shift the virtual key to mask it
// into the keyCode for KeyTrans
#define kMaskASCII1 0x00FF0000 // get the key out of the ASCII1 byte
#define kMaskASCII2 0x000000FF // get the key out of the ASCII2 byte
#define kPeriod 0x2E // ascii for a period
static Boolean CmdPeriod(EventRecord *theEvent)
{
Boolean fTimeToQuit;
short keyCode;
long virtualKey, keyInfo, lowChar, highChar, keyCId;
UInt32 state;
Handle hKCHR;
Ptr KCHRPtr;
fTimeToQuit = false;
if (((*theEvent).what == keyDown) || ((*theEvent).what == autoKey)) {
// see if the command key is down. If it is, find out the ASCII
// equivalent for the accompanying key.
if ((*theEvent).modifiers & cmdKey ) {
virtualKey = ((*theEvent).message & kMaskVirtualKey) >> kShiftWord;
// And out the command key and Or in the virtualKey
keyCode = short(((*theEvent).modifiers & kMaskModifiers) | virtualKey);
state = 0;
hKCHR = nil; /* set this to nil before starting */
KCHRPtr = (Ptr)GetScriptManagerVariable(smKCHRCache);
if ( !KCHRPtr ) {
keyCId = GetScriptVariable(short(GetScriptManagerVariable(smKeyScript)), smScriptKeys);
hKCHR = GetResource('KCHR',short(keyCId));
KCHRPtr = *hKCHR;
}
if (KCHRPtr) {
keyInfo = KeyTrans(KCHRPtr, keyCode, &state);
if (hKCHR)
ReleaseResource(hKCHR);
} else
keyInfo = (*theEvent).message;
lowChar = keyInfo & kMaskASCII2;
highChar = (keyInfo & kMaskASCII1) >> 16;
if (lowChar == kPeriod || highChar == kPeriod)
fTimeToQuit = true;
} // end the command key is down
} // end key down event
return( fTimeToQuit );
}
Boolean GUSIInterrupt()
{
EvQElPtr eventQ;
for (eventQ = (EvQElPtr) LMGetEventQueue()->qHead; eventQ; )
if (CmdPeriod((EventRecord *) &eventQ->evtQWhat))
return true;
else
eventQ = (EvQElPtr)eventQ->qLink;
return false;
}
int StandAlone = 1;
long gGUSISpinControl = 0;
int GUSIDefaultSpin(spin_msg msg, long arg)
{
static Boolean inForeground = true;
WindowPtr win;
EventRecord ev;
long sleepTime = 6; // 1/10 of a second by default
short mask = osMask|highLevelEventMask|mDownMask|evtMask;
GUSIConfig.AutoInitGraf();
if (inForeground) {
register long contrib = (msg == SP_AUTO_SPIN) ? arg : gGUSISpeed;
gGUSISpinControl += contrib;
// Tweak when a spin point has been overshot
RotateCursor((gGUSISpinControl & 31) < contrib ? 32 : gGUSISpinControl);
}
if (GUSIInterrupt())
goto interrupt;
if (!StandAlone && inForeground) // For MPW tools, SpinCursor already calls WNE
if (!GUSIConfig.noAppleEvents) // but it no longer reports AppleEvents
mask = highLevelEventMask|evtMask;
else
return 0;
switch (msg) {
case SP_SLEEP:
case SP_SELECT:
if (arg >= sleepTime) // Only sleep if patience guaranteed
break;
// Otherwise, fall through
case SP_AUTO_SPIN:
sleepTime = 0;
break;
default:
break;
}
if (WaitNextEvent(mask, &ev, sleepTime, nil))
switch (ev.what) {
case mouseDown:
if (!evtHandler || !evtHandler[mouseDown])
if (FindWindow(ev.where, &win) == inSysWindow)
SystemClick(&ev, win);
break;
case osEvt:
if (ev.message & 1)
inForeground = true;
else
inForeground = false;
break;
case kHighLevelEvent:
if (!evtHandler || !evtHandler[kHighLevelEvent])
if (hasAppleEvents) // actually pretty likely, if we get HL Events
AEProcessAppleEvent(&ev); // Ignore errors
break;
default:
break;
}
if (ev.what >= 0 && ev.what < 24 && evtHandler && evtHandler[ev.what])
evtHandler[ev.what](&ev);
return 0;
interrupt:
FlushEvents(-1, 0);
return -1;
}
/************************** Feature members **************************/
Feature::Feature(unsigned short trapNum, TrapType tTyp)
{
good =
NGetTrapAddress(trapNum, tTyp) != NGetTrapAddress(_Unimplemented, ToolTrap);
}
Feature::Feature(OSType type, long value)
{
long attr;
good = (!Gestalt(type, &attr) && (attr >= value));
}
Feature::Feature(OSType type, long mask, long value)
{
long attr;
good = (!Gestalt(type, &attr) && ((attr & mask) == value));
}
Feature::Feature(const Feature & precondition, OSErrInitializer init)
{
good = precondition && !init();
}
Feature::Feature(OSErrInitializer init)
{
good = !init();
}
Feature::Feature(const Feature & precondition, voidInitializer init)
{
if (precondition) {
good = true;
init();
} else
good = false;
}
Feature::Feature(voidInitializer init)
{
good = true;
init();
}
Feature::Feature(const Feature & cond1, const Feature & cond2)
{
good = cond1 && cond2;
}
OSErr AppleTalkIdentity(short & net, short & node)
{
static short mynet;
static short mynode;
static OSErr err = 1;
if (err == 1)
if (!(err = MPPOpen()))
err = GetNodeAddress(&mynode, &mynet);
net = mynet;
node = mynode;
return err;
}
/************************** Setup suppport **************************/
/* Pray that the following function never inlines GUSISetup */
void GUSIDefaultSetup()
{
GUSISetup(GUSIwithAppleTalkSockets);
GUSISetup(GUSIwithInternetSockets);
GUSISetup(GUSIwithPAPSockets);
GUSISetup(GUSIwithPPCSockets);
GUSISetup(GUSIwithUnixSockets);
GUSISetup(GUSIwithSIOUXSockets);
}
void GUSISetup(void (*proc)())
{
proc();
}
void GUSILoadConfiguration(Handle hdl)
{
GUSIConfig.GUSILoadConfiguration(hdl);
}
#endif // GUSI_DISPATCH
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