/* Copyright (c) 1997-1999 Miller Puckette.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
/* Pd side of the Pd/Pd-gui interface. Also, some system interface routines
that didn't really belong anywhere. */
#include "config.h"
#include "m_pd.h"
#include "s_stuff.h"
#include "m_imp.h"
#include "g_canvas.h" /* for GUI queueing stuff */
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#else // if isatty exists outside unistd, please add another #ifdef
static int isatty(int fd) {return 0;}
#endif
#ifndef _WIN32
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <netdb.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/mman.h>
#include <sys/resource.h>
#endif
#ifdef HAVE_BSTRING_H
#include <bstring.h>
#endif
#ifdef HAVE_IO_H
#include <io.h>
#endif
#ifdef _WIN32
#include <fcntl.h>
#include <process.h>
#include <winsock.h>
#include <windows.h>
# ifdef _MSC_VER
typedef int pid_t;
# endif
typedef int socklen_t;
#define EADDRINUSE WSAEADDRINUSE
#endif
#include <stdarg.h>
#include <signal.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
#ifdef __APPLE__
#include <sys/types.h>
#include <sys/stat.h>
#include <pthread.h>
#include <glob.h>
#else
#include <stdlib.h>
#endif
#define DEBUG_MESSUP 1 /* messages up from pd to pd-gui */
#define DEBUG_MESSDOWN 2 /* messages down from pd-gui to pd */
#ifndef PDBINDIR
#define PDBINDIR "bin/"
#endif
#ifndef WISHAPP
#define WISHAPP "wish85.exe"
#endif
#ifdef __linux__
#define LOCALHOST "127.0.0.1"
#else
#define LOCALHOST "localhost"
#endif
static int stderr_isatty;
#include <execinfo.h>
typedef struct _fdpoll
{
int fdp_fd;
t_fdpollfn fdp_fn;
void *fdp_ptr;
} t_fdpoll;
#define INBUFSIZE 4096
struct _socketreceiver
{
char *sr_inbuf;
int sr_inhead;
int sr_intail;
void *sr_owner;
int sr_udp;
t_socketnotifier sr_notifier;
t_socketreceivefn sr_socketreceivefn;
};
extern char *pd_version;
extern int sys_guisetportnumber;
static int sys_nfdpoll;
static t_fdpoll *sys_fdpoll;
static int sys_maxfd;
static int sys_guisock;
static t_binbuf *inbinbuf;
static t_socketreceiver *sys_socketreceiver;
extern int sys_addhist(int phase);
#ifdef QTGUI
pthread_t sys_thread_main;
pthread_t sys_thread_qt;
#endif
/* ----------- functions for timing, signals, priorities, etc --------- */
#ifdef MSW
static LARGE_INTEGER nt_inittime;
static double nt_freq = 0;
static void sys_initntclock(void)
{
LARGE_INTEGER f1;
LARGE_INTEGER now;
QueryPerformanceCounter(&now);
if (!QueryPerformanceFrequency(&f1))
{
fprintf(stderr, "pd: QueryPerformanceFrequency failed\n");
f1.QuadPart = 1;
}
nt_freq = f1.QuadPart;
nt_inittime = now;
}
#if 0
/* this is a version you can call if you did the QueryPerformanceCounter
call yourself. Necessary for time tagging incoming MIDI at interrupt
level, for instance; but we're not doing that just now. */
double nt_tixtotime(LARGE_INTEGER *dumbass)
{
if (nt_freq == 0) sys_initntclock();
return (((double)(dumbass->QuadPart - nt_inittime.QuadPart)) / nt_freq);
}
#endif
#endif /* MSW */
/* get "real time" in seconds; take the
first time we get called as a reference time of zero. */
double sys_getrealtime(void)
{
#ifndef MSW
static struct timeval then;
struct timeval now;
gettimeofday(&now, 0);
if (then.tv_sec == 0 && then.tv_usec == 0) then = now;
return ((now.tv_sec - then.tv_sec) +
(1./1000000.) * (now.tv_usec - then.tv_usec));
#else
LARGE_INTEGER now;
QueryPerformanceCounter(&now);
if (nt_freq == 0) sys_initntclock();
return (((double)(now.QuadPart - nt_inittime.QuadPart)) / nt_freq);
#endif
}
extern int sys_nosleep;
static int sys_domicrosleep(int microsec, int pollem)
{
struct timeval timout;
int i, didsomething = 0;
t_fdpoll *fp;
timout.tv_sec = 0;
timout.tv_usec = (sys_nosleep ? 0 : microsec);
if (pollem)
{
fd_set readset, writeset, exceptset;
FD_ZERO(&writeset);
FD_ZERO(&readset);
FD_ZERO(&exceptset);
for (fp = sys_fdpoll, i = sys_nfdpoll; i--; fp++)
FD_SET(fp->fdp_fd, &readset);
#ifdef MSW
if (sys_maxfd == 0)
Sleep(microsec/1000);
else
#endif
select(sys_maxfd+1, &readset, &writeset, &exceptset, &timout);
for (i = 0; i < sys_nfdpoll; i++)
if (FD_ISSET(sys_fdpoll[i].fdp_fd, &readset))
{
#ifdef THREAD_LOCKING
sys_lock();
#endif
(*sys_fdpoll[i].fdp_fn)(sys_fdpoll[i].fdp_ptr, sys_fdpoll[i].fdp_fd);
#ifdef THREAD_LOCKING
sys_unlock();
#endif
didsomething = 1;
}
return (didsomething);
}
else
{
#ifdef MSW
if (sys_maxfd == 0)
Sleep(microsec/1000);
else
#endif
select(0, 0, 0, 0, &timout);
return (0);
}
}
void sys_microsleep(int microsec)
{
sys_domicrosleep(microsec, 1);
}
#ifdef HAVE_UNISTD_H
typedef void (*sighandler_t)(int);
static void sys_signal(int signo, sighandler_t sigfun)
{
struct sigaction action;
action.sa_flags = 0;
action.sa_handler = sigfun;
memset(&action.sa_mask, 0, sizeof(action.sa_mask));
#if 0 /* GG says: don't use that */
action.sa_restorer = 0;
#endif
if (sigaction(signo, &action, 0) < 0)
perror("sigaction");
}
static void sys_exithandler(int n)
{
static int trouble = 0;
if (!trouble)
{
trouble = 1;
fprintf(stderr, "Pd: signal %d\n", n);
sys_bail(1);
}
else _exit(1);
}
static void sys_alarmhandler(int n)
{
fprintf(stderr, "Pd: system call timed out\n");
}
static void sys_huphandler(int n)
{
struct timeval timout;
timout.tv_sec = 0;
timout.tv_usec = 30000;
select(1, 0, 0, 0, &timout);
}
void sys_setalarm(int microsec)
{
struct itimerval gonzo;
int sec = (int)(microsec/1000000);
microsec %= 1000000;
#if 0
fprintf(stderr, "timer %d:%d\n", sec, microsec);
#endif
gonzo.it_interval.tv_sec = 0;
gonzo.it_interval.tv_usec = 0;
gonzo.it_value.tv_sec = sec;
gonzo.it_value.tv_usec = microsec;
if (microsec)
sys_signal(SIGALRM, sys_alarmhandler);
else sys_signal(SIGALRM, SIG_IGN);
setitimer(ITIMER_REAL, &gonzo, 0);
}
#endif
#ifdef __linux
#if defined(_POSIX_PRIORITY_SCHEDULING) || defined(_POSIX_MEMLOCK)
#include <sched.h>
#endif
void sys_set_priority(int higher)
{
#ifdef _POSIX_PRIORITY_SCHEDULING
struct sched_param par;
int p1 ,p2, p3;
p1 = sched_get_priority_min(SCHED_FIFO);
p2 = sched_get_priority_max(SCHED_FIFO);
#ifdef USEAPI_JACK
p3 = (higher ? p1 + 7 : p1 + 5);
#else
p3 = (higher ? p2 - 1 : p2 - 3);
#endif
par.sched_priority = p3;
if (sched_setscheduler(0,SCHED_FIFO,&par) != -1)
fprintf(stderr, "priority %d scheduling enabled.\n", p3);
#endif
#ifdef REALLY_POSIX_MEMLOCK /* this doesn't work on Fedora 4, for example. */
#ifdef _POSIX_MEMLOCK
/* tb: force memlock to physical memory { */
{
struct rlimit mlock_limit;
mlock_limit.rlim_cur=0;
mlock_limit.rlim_max=0;
setrlimit(RLIMIT_MEMLOCK,&mlock_limit);
}
/* } tb */
if (mlockall(MCL_FUTURE) != -1)
fprintf(stderr, "memory locking enabled.\n");
#endif
#endif
}
#endif /* __linux__ */
#ifdef IRIX /* hack by <olaf.matthes@gmx.de> at 2003/09/21 */
#if defined(_POSIX_PRIORITY_SCHEDULING) || defined(_POSIX_MEMLOCK)
#include <sched.h>
#endif
void sys_set_priority(int higher)
{
#ifdef _POSIX_PRIORITY_SCHEDULING
struct sched_param par;
/* Bearing the table found in 'man realtime' in mind, I found it a */
/* good idea to use 192 as the priority setting for Pd. Any thoughts? */
if (higher)
par.sched_priority = 250; /* priority for watchdog */
else
par.sched_priority = 192; /* priority for pd (DSP) */
if (sched_setscheduler(0, SCHED_FIFO, &par) != -1)
fprintf(stderr, "priority %d scheduling enabled.\n", par.sched_priority);
#endif
#ifdef _POSIX_MEMLOCK
if (mlockall(MCL_FUTURE) != -1)
fprintf(stderr, "memory locking enabled.\n");
#endif
}
/* end of hack */
#endif /* IRIX */
/* ------------------ receiving incoming messages over sockets ------------- */
void sys_sockerror(char *s)
{
#ifdef MSW
int err = WSAGetLastError();
if (err == 10054) return;
else if (err == 10044)
{
fprintf(stderr,
"Warning: you might not have TCP/IP \"networking\" turned on\n");
fprintf(stderr, "which is needed for Pd to talk to its GUI layer.\n");
}
#else
int err = errno;
#endif
fprintf(stderr, "%s: %s (%d)\n", s, strerror(err), err);
}
void sys_addpollfn(int fd, t_fdpollfn fn, void *ptr)
{
int nfd = sys_nfdpoll;
int size = nfd * sizeof(t_fdpoll);
t_fdpoll *fp;
sys_fdpoll = (t_fdpoll *)t_resizebytes(sys_fdpoll, size,
size + sizeof(t_fdpoll));
fp = sys_fdpoll + nfd;
fp->fdp_fd = fd;
fp->fdp_fn = fn;
fp->fdp_ptr = ptr;
sys_nfdpoll = nfd + 1;
if (fd >= sys_maxfd) sys_maxfd = fd + 1;
}
void sys_rmpollfn(int fd)
{
int nfd = sys_nfdpoll;
int i, size = nfd * sizeof(t_fdpoll);
t_fdpoll *fp;
for (i = nfd, fp = sys_fdpoll; i--; fp++)
{
if (fp->fdp_fd == fd)
{
while (i--)
{
fp[0] = fp[1];
fp++;
}
sys_fdpoll = (t_fdpoll *)t_resizebytes(sys_fdpoll, size,
size - sizeof(t_fdpoll));
sys_nfdpoll = nfd - 1;
return;
}
}
post("warning: %d removed from poll list but not found", fd);
}
t_socketreceiver *socketreceiver_new(void *owner, t_socketnotifier notifier,
t_socketreceivefn socketreceivefn, int udp)
{
t_socketreceiver *x = (t_socketreceiver *)getbytes(sizeof(*x));
x->sr_inhead = x->sr_intail = 0;
x->sr_owner = owner;
x->sr_notifier = notifier;
x->sr_socketreceivefn = socketreceivefn;
x->sr_udp = udp;
if (!(x->sr_inbuf = malloc(INBUFSIZE))) bug("t_socketreceiver");;
return (x);
}
void socketreceiver_free(t_socketreceiver *x)
{
free(x->sr_inbuf);
freebytes(x, sizeof(*x));
}
/* this is in a separately called subroutine so that the buffer isn't
sitting on the stack while the messages are getting passed. */
static int socketreceiver_doread(t_socketreceiver *x)
{
char messbuf[INBUFSIZE], *bp = messbuf;
int indx, first = 1;
int inhead = x->sr_inhead;
int intail = x->sr_intail;
char *inbuf = x->sr_inbuf;
for (indx = intail; first || (indx != inhead);
first = 0, (indx = (indx+1)&(INBUFSIZE-1)))
{
/* if we hit a semi that isn't preceeded by a \, it's a message
boundary. LATER we should deal with the possibility that the
preceeding \ might itself be escaped! */
char c = *bp++ = inbuf[indx];
if (c == ';' && (!indx || inbuf[indx-1] != '\\'))
{
intail = (indx+1)&(INBUFSIZE-1);
binbuf_text(inbinbuf, messbuf, bp - messbuf);
if (sys_debuglevel & DEBUG_MESSDOWN) {
if (stderr_isatty)
fprintf(stderr,"<- \e[0;1;36m%.*s\e[0m\n", bp - messbuf, messbuf);
else
fprintf(stderr,"<- %.*s\n", bp - messbuf, messbuf);
}
x->sr_inhead = inhead;
x->sr_intail = intail;
return (1);
}
}
return (0);
}
static void socketreceiver_getudp(t_socketreceiver *x, int fd)
{
char buf[INBUFSIZE+1];
int ret = recv(fd, buf, INBUFSIZE, 0);
if (ret < 0)
{
sys_sockerror("recv");
sys_rmpollfn(fd);
sys_closesocket(fd);
}
else if (ret > 0)
{
buf[ret] = 0;
#if 0
post("%s", buf);
#endif
if (buf[ret-1] != '\n')
{
#if 0
buf[ret] = 0;
error("dropped bad buffer %s\n", buf);
#endif
}
else
{
char *semi = strchr(buf, ';');
if (semi)
*semi = 0;
binbuf_text(inbinbuf, buf, strlen(buf));
outlet_setstacklim();
if (x->sr_socketreceivefn)
(*x->sr_socketreceivefn)(x->sr_owner, inbinbuf);
else bug("socketreceiver_getudp");
}
}
}
void sys_exit(void);
void socketreceiver_read(t_socketreceiver *x, int fd)
{
if (x->sr_udp) /* UDP ("datagram") socket protocol */
socketreceiver_getudp(x, fd);
else /* TCP ("streaming") socket protocol */
{
int readto =
(x->sr_inhead >= x->sr_intail ? INBUFSIZE : x->sr_intail-1);
int ret;
/* the input buffer might be full. If so, drop the whole thing */
if (readto == x->sr_inhead)
{
fprintf(stderr, "pd: dropped message from gui\n");
x->sr_inhead = x->sr_intail = 0;
readto = INBUFSIZE;
}
else
{
ret = recv(fd, x->sr_inbuf + x->sr_inhead,
readto - x->sr_inhead, 0);
if (ret < 0)
{
sys_sockerror("recv");
if (x == sys_socketreceiver) sys_bail(1);
else
{
if (x->sr_notifier) (*x->sr_notifier)(x->sr_owner);
sys_rmpollfn(fd);
sys_closesocket(fd);
}
}
else if (ret == 0)
{
if (x == sys_socketreceiver)
{
fprintf(stderr, "pd: exiting\n");
sys_exit();
return;
}
else
{
post("EOF on socket %d\n", fd);
if (x->sr_notifier) (*x->sr_notifier)(x->sr_owner);
sys_rmpollfn(fd);
sys_closesocket(fd);
}
}
else
{
x->sr_inhead += ret;
if (x->sr_inhead >= INBUFSIZE) x->sr_inhead = 0;
while (socketreceiver_doread(x))
{
outlet_setstacklim();
if (x->sr_socketreceivefn)
(*x->sr_socketreceivefn)(x->sr_owner, inbinbuf);
else binbuf_eval(inbinbuf, 0, 0, 0);
if (x->sr_inhead == x->sr_intail)
break;
}
}
}
}
}
void sys_closesocket(int fd)
{
#ifdef HAVE_UNISTD_H
close(fd);
#endif
#ifdef MSW
closesocket(fd);
#endif
}
/* ---------------------- sending messages to the GUI ------------------ */
#define GUI_ALLOCCHUNK 8192
#define GUI_UPDATESLICE 512 /* how much we try to do in one idle period */
#define GUI_BYTESPERPING 1024 /* how much we send up per ping */
//#define GUI_BYTESPERPING 0x7fffffff /* as per Miller's suggestion to disable the flow control */
typedef struct _guiqueue
{
void *gq_client;
t_glist *gq_glist;
t_guicallbackfn gq_fn;
struct _guiqueue *gq_next;
} t_guiqueue;
static t_guiqueue *sys_guiqueuehead;
static char *sys_guibuf;
static int sys_guibufhead;
static int sys_guibuftail;
static int sys_guibufsize;
static int sys_waitingforping;
static int sys_bytessincelastping;
static void sys_trytogetmoreguibuf(int newsize)
{
char *newbuf = realloc(sys_guibuf, newsize);
#if 0
static int sizewas;
if (newsize > 70000 && sizewas < 70000)
{
int i;
for (i = sys_guibuftail; i < sys_guibufhead; i++)
fputc(sys_guibuf[i], stderr);
}
sizewas = newsize;
#endif
#if 0
fprintf(stderr, "new size %d (head %d, tail %d)\n",
newsize, sys_guibufhead, sys_guibuftail);
#endif
/* if realloc fails, make a last-ditch attempt to stay alive by
synchronously writing out the existing contents. LATER test
this by intentionally setting newbuf to zero */
if (!newbuf)
{
int bytestowrite = sys_guibuftail - sys_guibufhead;
int written = 0;
while (1)
{
int res = send(sys_guisock,
sys_guibuf + sys_guibuftail + written, bytestowrite, 0);
if (res < 0)
{
perror("pd output pipe");
sys_bail(1);
}
else
{
written += res;
if (written >= bytestowrite)
break;
}
}
sys_guibufhead = sys_guibuftail = 0;
}
else
{
sys_guibufsize = newsize;
sys_guibuf = newbuf;
}
}
void blargh(void) {
#ifdef MACOSX
fprintf(stderr,"unhandled exception\n");
#else
int i;
void *array[25];
int nSize = backtrace(array, 25);
char **symbols = backtrace_symbols(array, nSize);
for (i=0; i<nSize; i++) fprintf(stderr,"%d: %s\n",i,symbols[i]);
free(symbols);
#endif
}
static int lastend = -1;
void sys_vvgui(const char *fmt, va_list ap) {
va_list aq;
va_copy(aq,ap);
int msglen;
if (sys_nogui)
return;
if (!sys_guibuf)
{
if (!(sys_guibuf = malloc(GUI_ALLOCCHUNK)))
{
fprintf(stderr, "Pd: couldn't allocate GUI buffer\n");
sys_bail(1);
}
sys_guibufsize = GUI_ALLOCCHUNK;
sys_guibufhead = sys_guibuftail = 0;
}
if (sys_guibufhead > sys_guibufsize - (GUI_ALLOCCHUNK/2))
sys_trytogetmoreguibuf(sys_guibufsize + GUI_ALLOCCHUNK);
msglen = vsnprintf(sys_guibuf + sys_guibufhead,
sys_guibufsize - sys_guibufhead, fmt, ap);
va_end(ap);
if(msglen < 0)
{
fprintf(stderr, "Pd: buffer space wasn't sufficient for long GUI string\n");
return;
}
if (msglen >= sys_guibufsize - sys_guibufhead)
{
int msglen2, newsize = sys_guibufsize + 1 +
(msglen > GUI_ALLOCCHUNK ? msglen : GUI_ALLOCCHUNK);
sys_trytogetmoreguibuf(newsize);
va_copy(ap,aq);
msglen2 = vsnprintf(sys_guibuf + sys_guibufhead,
sys_guibufsize - sys_guibufhead, fmt, ap);
va_end(ap);
if (msglen2 != msglen)
bug("sys_vgui");
if (msglen >= sys_guibufsize - sys_guibufhead)
msglen = sys_guibufsize - sys_guibufhead;
}
if (sys_debuglevel & DEBUG_MESSUP) {
//blargh();
int begin = lastend=='\n' || lastend=='\r' || lastend==-1;
if (stderr_isatty)
fprintf(stderr, "%s\e[0;1;35m%s\e[0m",
begin ? "-> " : "", sys_guibuf + sys_guibufhead);
else
fprintf(stderr, "%s%s",
begin ? "-> " : "", sys_guibuf + sys_guibufhead);
}
sys_guibufhead += msglen;
sys_bytessincelastping += msglen;
if (sys_guibufhead>0) lastend=sys_guibuf[sys_guibufhead-1];
if (sys_guibufhead>1 && strcmp(sys_guibuf+sys_guibufhead-2,"\\\n")==0)
lastend=' ';
}
#undef sys_vgui
#undef sys_gui
void sys_vgui(const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
sys_vvgui(fmt,ap);
}
void sys_vvguid(const char *file, int line, const char *fmt, va_list ap) {
if ((sys_debuglevel&4) && /*line>=0 &&*/ (lastend=='\n' || lastend=='\r' || lastend==-1)) {
sys_vgui("AT %s:%d; ",file,line);
}
sys_vvgui(fmt,ap);
}
void sys_vguid(const char *file, int line, const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
sys_vvguid(file,line,fmt,ap);
}
void sys_gui(const char *s)
{
sys_vgui("%s", s);
}
char *escape_double_quotes(const char *src) {
static char ret[MAXPDSTRING*4+1];
char *escaped = ret;
int i, len = MAXPDSTRING*4;
for (i = 0; i < len-1 && src[i] != 0; i++)
{
if (src[i] == '\"')
*(escaped++) = '\\';
*(escaped++) = src[i];
}
*escaped = '\0';
if (i >= len) fprintf(stderr, "oops, you caught me statically allocating a string "
"in a lazy attempt to escape double-quotes for the gui. "
"Please call me out publicly for this regression, and/or revise this "
"so it doesn't arbitrarily limit the size of the strings "
"we can send to the gui.\n");
return ret;
}
void gui_end_vmess(void)
{
sys_gui("\v");
}
/* quick hack to send a parameter list for use as a function call in
Node-Webkit */
void gui_do_vmess(const char *sel, char *fmt, int end, va_list ap)
{
//va_list ap;
int nargs = 0;
char *fp = fmt;
//va_start(ap, end);
sys_vgui("\a%s ", sel); /* use a bell to signal the beginning of msg
(this can be replaced with any other obscure
ascii escape) */
while (*fp)
{
// stop-gap-- increase to 20 until we find a way to pass a list or array
if (nargs >= 20)
{
error("sys_gui_vmess: only 10 named parameters allowed");
break;
}
if (nargs > 0) sys_gui(",");
switch(*fp++)
{
case 'f': sys_vgui("%g", va_arg(ap, double)); break;
case 's': sys_vgui("\"%s\"", escape_double_quotes(va_arg(ap, const char *))); break;
case 'i': sys_vgui("%d", va_arg(ap, t_int)); break;
case 'x': sys_vgui("\"x%.6lx\"", va_arg(ap, long unsigned int)); break;
//case 'p': SETPOINTER(at, va_arg(ap, t_gpointer *)); break;
default: goto done;
}
nargs++;
}
done:
va_end(ap);
if (end)
gui_end_vmess();
}
void gui_vmess(const char *sel, char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
gui_do_vmess(sel, fmt, 1, ap);
}
void gui_start_vmess(const char *sel, char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
gui_do_vmess(sel, fmt, 0, ap);
}
static int gui_array_head;
static int gui_array_tail;
void gui_start_array(void)
{
if (gui_array_head && !gui_array_tail)
sys_gui("[");
else
sys_gui(",[");
gui_array_head = 1;
gui_array_tail = 0;
}
void gui_f(t_float f)
{
if (gui_array_head && !gui_array_tail)
{
sys_vgui("%g", f);
}
else
sys_vgui(",%g", f);
gui_array_head = 0;
gui_array_tail = 0;
}
void gui_i(int i)
{
if (gui_array_head && !gui_array_tail)
{
sys_vgui("%d", i);
}
else
sys_vgui(",%d", i);
gui_array_head = 0;
gui_array_tail = 0;
}
void gui_s(const char *s)
{
if (gui_array_head && !gui_array_tail)
{
sys_vgui("\"%s\"", escape_double_quotes(s));
}
else
sys_vgui(",\"%s\"", escape_double_quotes(s));
gui_array_head = 0;
gui_array_tail = 0;
}
void gui_end_array(void)
{
sys_gui("]");
gui_array_tail = 1;
}
int sys_flushtogui( void)
{
int writesize = sys_guibufhead - sys_guibuftail, nwrote = 0;
if (writesize > 0)
nwrote = send(sys_guisock, sys_guibuf + sys_guibuftail, writesize, 0);
#if 0
if (writesize)
fprintf(stderr, "wrote %d of %d\n", nwrote, writesize);
#endif
if (nwrote < 0)
{
perror("pd-to-gui socket");
sys_bail(1);
}
else if (!nwrote)
return (0);
else if (nwrote >= sys_guibufhead - sys_guibuftail)
sys_guibufhead = sys_guibuftail = 0;
else if (nwrote)
{
sys_guibuftail += nwrote;
if (sys_guibuftail > (sys_guibufsize >> 2))
{
memmove(sys_guibuf, sys_guibuf + sys_guibuftail,
sys_guibufhead - sys_guibuftail);
sys_guibufhead = sys_guibufhead - sys_guibuftail;
sys_guibuftail = 0;
}
}
return (1);
}
void glob_ping(t_pd *dummy)
{
sys_waitingforping = 0;
}
static int sys_flushqueue(void )
{
int wherestop = sys_bytessincelastping + GUI_UPDATESLICE;
if (wherestop + (GUI_UPDATESLICE >> 1) > GUI_BYTESPERPING)
wherestop = 0x7fffffff;
if (sys_waitingforping)
return (0);
if (!sys_guiqueuehead)
return (0);
while (1)
{
if (sys_bytessincelastping >= GUI_BYTESPERPING)
{
sys_gui("pdtk_ping\n");
gui_vmess("gui_ping", "");
sys_bytessincelastping = 0;
sys_waitingforping = 1;
return (1);
}
if (sys_guiqueuehead)
{
t_guiqueue *headwas = sys_guiqueuehead;
sys_guiqueuehead = headwas->gq_next;
(*headwas->gq_fn)(headwas->gq_client, headwas->gq_glist);
t_freebytes(headwas, sizeof(*headwas));
if (sys_bytessincelastping >= wherestop)
break;
}
else break;
}
sys_flushtogui();
return (1);
}
/* flush output buffer and update queue to gui in small time slices */
static int sys_poll_togui(void) /* returns 1 if did anything */
{
if (sys_nogui)
return (0);
/* see if there is stuff still in the buffer, if so we
must have fallen behind, so just try to clear that. */
if (sys_flushtogui())
return (1);
/* if the flush wasn't complete, wait. */
if (sys_guibufhead > sys_guibuftail)
return (0);
/* check for queued updates */
if (sys_flushqueue())
return (1);
return (0);
}
/* if some GUI object is having to do heavy computations, it can tell
us to back off from doing more updates by faking a big one itself. */
void sys_pretendguibytes(int n)
{
sys_bytessincelastping += n;
}
void sys_queuegui(void *client, t_glist *glist, t_guicallbackfn f)
{
t_guiqueue **gqnextptr, *gq;
if (!sys_guiqueuehead)
gqnextptr = &sys_guiqueuehead;
else
{
for (gq = sys_guiqueuehead; gq->gq_next; gq = gq->gq_next)
if (gq->gq_client == client)
return;
if (gq->gq_client == client)
return;
gqnextptr = &gq->gq_next;
}
gq = t_getbytes(sizeof(*gq));
gq->gq_next = 0;
gq->gq_client = client;
gq->gq_glist = glist;
gq->gq_fn = f;
gq->gq_next = 0;
*gqnextptr = gq;
}
void sys_unqueuegui(void *client)
{
t_guiqueue *gq, *gq2;
while (sys_guiqueuehead && sys_guiqueuehead->gq_client == client)
{
gq = sys_guiqueuehead;
sys_guiqueuehead = sys_guiqueuehead->gq_next;
t_freebytes(gq, sizeof(*gq));
}
if (!sys_guiqueuehead)
return;
for (gq = sys_guiqueuehead; gq2 = gq->gq_next; gq = gq2)
if (gq2->gq_client == client)
{
gq->gq_next = gq2->gq_next;
t_freebytes(gq2, sizeof(*gq2));
break;
}
}
int sys_pollgui(void)
{
// return (sys_domicrosleep(0, 1) || sys_poll_togui());
// "fix" for sluggish gui proposed by Miller on 12/16/2012
return (sys_domicrosleep(0, 1) + sys_poll_togui());
}
/* --------------------- starting up the GUI connection ------------- */
static int sys_watchfd;
#ifdef __linux__
void glob_watchdog(t_pd *dummy)
{
if (write(sys_watchfd, "\n", 1) < 1)
{
fprintf(stderr, "pd: watchdog process died\n");
sys_bail(1);
}
}
#endif
#define FIRSTPORTNUM 5400
#define MAXFONTS 21
static int defaultfontshit[MAXFONTS] = {
8, 5, 9, 10, 6, 10, 12, 7, 13, 14, 9, 17, 16, 10, 19, 24, 15, 28,
24, 15, 28};
#define NDEFAULTFONT (sizeof(defaultfontshit)/sizeof(*defaultfontshit))
#ifdef QTGUI
void sys_start_qt () {
sys_thread_main = pthread_self();
int r = pthread_create(&sys_thread_qt,0,qt_thread_main,0);
if (r) fprintf(stderr,"pthread_create: %s",strerror(r));
}
#endif
int sys_startgui(const char *guidir)
{
pid_t childpid;
char cmdbuf[4*MAXPDSTRING];
struct sockaddr_in server;
int len = sizeof(server);
int ntry = 0, portno = FIRSTPORTNUM;
int xsock = -1;
stderr_isatty = isatty(2);
#ifdef MSW
short version = MAKEWORD(2, 0);
WSADATA nobby;
#endif
#ifdef HAVE_UNISTD_H
int stdinpipe[2];
#endif
/* create an empty FD poll list */
sys_fdpoll = (t_fdpoll *)t_getbytes(0);
sys_nfdpoll = 0;
inbinbuf = binbuf_new();
#ifdef HAVE_UNISTD_H
signal(SIGHUP, sys_huphandler);
signal(SIGINT, sys_exithandler);
signal(SIGQUIT, sys_exithandler);
signal(SIGILL, sys_exithandler);
signal(SIGIOT, sys_exithandler);
signal(SIGFPE, SIG_IGN);
/* signal(SIGILL, sys_exithandler);
signal(SIGBUS, sys_exithandler);
signal(SIGSEGV, sys_exithandler); */
signal(SIGPIPE, SIG_IGN);
signal(SIGALRM, SIG_IGN);
#if 0 /* GG says: don't use that */
signal(SIGSTKFLT, sys_exithandler);
#endif
#endif
#ifdef MSW
if (WSAStartup(version, &nobby)) sys_sockerror("WSAstartup");
#endif
if (sys_nogui)
{
/* fake the GUI's message giving cwd and font sizes; then
skip starting the GUI up. */
t_atom zz[NDEFAULTFONT+2];
int i;
#ifdef MSW
if (GetCurrentDirectory(MAXPDSTRING, cmdbuf) == 0)
strcpy(cmdbuf, ".");
#endif
#ifdef HAVE_UNISTD_H
if (!getcwd(cmdbuf, MAXPDSTRING))
strcpy(cmdbuf, ".");
#endif
SETSYMBOL(zz, gensym(cmdbuf));
for (i = 0; i < (int)NDEFAULTFONT; i++)
SETFLOAT(zz+i+1, defaultfontshit[i]);
SETFLOAT(zz+NDEFAULTFONT+1,0);
glob_initfromgui(0, 0, 23, zz);
}
else if (sys_guisetportnumber) /* GUI exists and sent us a port number */
{
struct sockaddr_in server;
struct hostent *hp;
/* create a socket */
sys_guisock = socket(AF_INET, SOCK_STREAM, 0);
if (sys_guisock < 0)
sys_sockerror("socket");
/* connect socket using hostname provided in command line */
server.sin_family = AF_INET;
hp = gethostbyname(LOCALHOST);
if (hp == 0)
{
fprintf(stderr,
"localhost not found (inet protocol not installed?)\n");
exit(1);
}
memcpy((char *)&server.sin_addr, (char *)hp->h_addr, hp->h_length);
/* assign client port number */
server.sin_port = htons((unsigned short)sys_guisetportnumber);
/* try to connect */
if (connect(sys_guisock, (struct sockaddr *) &server, sizeof (server))
< 0)
{
sys_sockerror("connecting stream socket");
exit(1);
}
}
else /* default behavior: start up the GUI ourselves. */
{
#ifdef MSW
char scriptbuf[MAXPDSTRING+30], wishbuf[MAXPDSTRING+30], portbuf[80];
int spawnret;
#endif
#ifdef MSW
char intarg;
#else
int intarg;
#endif
/* create a socket */
xsock = socket(AF_INET, SOCK_STREAM, 0);
if (xsock < 0) sys_sockerror("socket");
#if 0
intarg = 0;
if (setsockopt(xsock, SOL_SOCKET, SO_SNDBUF,
&intarg, sizeof(intarg)) < 0)
post("setsockopt (SO_RCVBUF) failed\n");
intarg = 0;
if (setsockopt(xsock, SOL_SOCKET, SO_RCVBUF,
&intarg, sizeof(intarg)) < 0)
post("setsockopt (SO_RCVBUF) failed\n");
#endif
intarg = 1;
if (setsockopt(xsock, IPPROTO_TCP, TCP_NODELAY,
&intarg, sizeof(intarg)) < 0)
#ifndef MSW
post("setsockopt (TCP_NODELAY) failed\n")
#endif
;
server.sin_family = AF_INET;
server.sin_addr.s_addr = INADDR_ANY;
/* assign server port number */
server.sin_port = htons((unsigned short)portno);
/* name the socket */
while (bind(xsock, (struct sockaddr *)&server, sizeof(server)) < 0)
{
#ifdef MSW
int err = WSAGetLastError();
#else
int err = errno;
#endif
if ((ntry++ > 20) || (err != EADDRINUSE))
{
perror("bind");
fprintf(stderr,
"Pd needs your machine to be configured with\n");
fprintf(stderr,
"'networking' turned on (see Pd's html doc for details.)\n");
exit(1);
}
portno++;
server.sin_port = htons((unsigned short)(portno));
}
if (sys_verbose) fprintf(stderr, "port %d\n", portno);
#ifdef HAVE_UNISTD_H
if (!sys_guicmd)
{
#ifdef __APPLE__
int i;
struct stat statbuf;
glob_t glob_buffer;
char *homedir = getenv("HOME");
char embed_glob[FILENAME_MAX];
char embed_filename[FILENAME_MAX], home_filename[FILENAME_MAX];
char *wish_paths[10] = {
"(did not find an embedded wish)",
"(did not find a home directory)",
"/Applications/Utilities/Wish.app/Contents/MacOS/Wish",
"/Applications/Utilities/Wish Shell.app/Contents/MacOS/Wish Shell",
"/Applications/Wish.app/Contents/MacOS/Wish",
"/Applications/Wish Shell.app/Contents/MacOS/Wish Shell",
"/usr/local/bin/wish8.4",
"/sw/bin/wish8.4"
"/opt/bin/wish8.4"
"/usr/bin/wish8.4"
"/usr/local/bin/wish8.4",
"/usr/local/bin/wish",
"/usr/bin/wish"
};
/* this glob is needed so the Wish executable can have the same
* filename as the Pd.app, i.e. 'Pd-0.42-3.app' should have a Wish
* executable called 'Pd-0.42-3.app/Contents/MacOS/Pd-0.42-3' */
sprintf(embed_glob, "%s/../../MacOS/Pd*", guidir);
glob_buffer.gl_matchc = 1; /* we only need one match */
glob(embed_glob, GLOB_LIMIT, NULL, &glob_buffer);
if (glob_buffer.gl_pathc > 0) {
strcpy(embed_filename, glob_buffer.gl_pathv[0]);
wish_paths[0] = embed_filename;
}
sprintf(home_filename,
"%s/Applications/Wish.app/Contents/MacOS/Wish",homedir);
wish_paths[1] = home_filename;
for(i=0;i<10;i++) {
if (sys_verbose)
fprintf(stderr, "Trying Wish at \"%s\"\n", wish_paths[i]);
if (stat(wish_paths[i], &statbuf) >= 0)
break;
}
sprintf(cmdbuf,"\"%s\" %s/pd.tk %d\n",wish_paths[i],guidir,portno);
#else
sprintf(cmdbuf,
"TCL_LIBRARY=\"%s/tcl/library\" TK_LIBRARY=\"%s/tk/library\" \
\"%s/pd-gui\" %d localhost %s\n",
sys_libdir->s_name, sys_libdir->s_name, guidir, portno, (sys_k12_mode ? "pd-l2ork-k12" : "pd-l2ork"));
/* SUPERHACK - let's just load node-webkit and see what happens */
// sprintf(cmdbuf,
// "/home/user/Downloads/nwjs-v0.12.2-linux-ia32/nw "
// "/home/nu/Downloads/nwjs-v0.12.0-alpha2-linux-ia32/nw "
// "/home/user/pd-nw/pd/nw/ %d localhost %s\n",
// portno,
// (sys_k12_mode ? "pd-l2ork-k12" : "pd-l2ork"));
fprintf(stderr, "guidir is %s\n", guidir);
sprintf(cmdbuf,
"%s/nw/nw %s %d localhost %s\n",
guidir,
guidir,
// "/home/user/pd-nw/pd/nw",
portno,
(sys_k12_mode ? "pd-l2ork-k12" : "pd-l2ork"));
#endif
sys_guicmd = cmdbuf;
}
if (sys_verbose)
fprintf(stderr, "%s", sys_guicmd);
childpid = fork();
if (childpid < 0)
{
if (errno) perror("sys_startgui");
else fprintf(stderr, "sys_startgui failed\n");
return (1);
}
else if (!childpid) /* we're the child */
{
setuid(getuid()); /* lose setuid priveliges */
#ifndef __APPLE__
/* the wish process in Unix will make a wish shell and
read/write standard in and out unless we close the
file descriptors. Somehow this doesn't make the MAC OSX
version of Wish happy...*/
if (pipe(stdinpipe) < 0)
sys_sockerror("pipe");
else
{
if (stdinpipe[0] != 0)
{
close (0);
dup2(stdinpipe[0], 0);
close(stdinpipe[0]);
}
}
#endif
execl("/bin/sh", "sh", "-c", sys_guicmd, (char*)0);
perror("pd: exec");
_exit(1);
}
#endif /* HAVE_UNISTD_H */
#ifdef MSW
/* in MSW land "guipath" is unused; we just do everything from
the libdir. */
/* fprintf(stderr, "%s\n", sys_libdir->s_name); */
strcpy(scriptbuf, "\"");
strcat(scriptbuf, sys_libdir->s_name);
strcat(scriptbuf, "/" PDBINDIR "pd.tk\"");
sys_bashfilename(scriptbuf, scriptbuf);
sprintf(portbuf, "%d", portno);
strcpy(wishbuf, sys_libdir->s_name);
strcat(wishbuf, "/" PDBINDIR WISHAPP);
sys_bashfilename(wishbuf, wishbuf);
spawnret = _spawnl(P_NOWAIT, wishbuf, WISHAPP, scriptbuf, portbuf, 0);
if (spawnret < 0)
{
perror("spawnl");
fprintf(stderr, "%s: couldn't load TCL\n", wishbuf);
exit(1);
}
#endif /* MSW */
}
#ifdef QTGUI
if (sys_qtcanvas) sys_start_qt();
#endif
#if defined(__linux__) || defined(IRIX)
/* now that we've spun off the child process we can promote
our process's priority, if we can and want to. If not specfied
(-1), we assume real-time was wanted. Afterward, just in case
someone made Pd setuid in order to get permission to do this,
unset setuid and lose root priveliges after doing this. Starting
in Linux 2.6 this is accomplished by putting lines like:
@audio - rtprio 99
@audio - memlock unlimited
in the system limits file, perhaps /etc/limits.conf or
/etc/security/limits.conf */
if (sys_hipriority == -1)
sys_hipriority = 1; //(!getuid() || !geteuid());
sprintf(cmdbuf, "%s/pd-watchdog\n", guidir);
if (sys_hipriority)
{
/* To prevent lockup, we fork off a watchdog process with
higher real-time priority than ours. The GUI has to send
a stream of ping messages to the watchdog THROUGH the Pd
process which has to pick them up from the GUI and forward
them. If any of these things aren't happening the watchdog
starts sending "stop" and "cont" signals to the Pd process
to make it timeshare with the rest of the system. (Version
0.33P2 : if there's no GUI, the watchdog pinging is done
from the scheduler idle routine in this process instead.) */
int pipe9[2], watchpid;
if (pipe(pipe9) < 0)
{
setuid(getuid()); /* lose setuid priveliges */
sys_sockerror("pipe");
return (1);
}
watchpid = fork();
if (watchpid < 0)
{
setuid(getuid()); /* lose setuid priveliges */
if (errno)
perror("sys_startgui");
else fprintf(stderr, "sys_startgui failed\n");
return (1);
}
else if (!watchpid) /* we're the child */
{
sys_set_priority(1);
setuid(getuid()); /* lose setuid priveliges */
if (pipe9[1] != 0)
{
dup2(pipe9[0], 0);
close(pipe9[0]);
}
close(pipe9[1]);
if (sys_verbose) fprintf(stderr, "%s", cmdbuf);
execl("/bin/sh", "sh", "-c", cmdbuf, (char*)0);
perror("pd: exec");
_exit(1);
}
else /* we're the parent */
{
sys_set_priority(0);
setuid(getuid()); /* lose setuid priveliges */
close(pipe9[0]);
sys_watchfd = pipe9[1];
/* We also have to start the ping loop in the GUI;
this is done later when the socket is open. */
}
}
setuid(getuid()); /* lose setuid priveliges */
#endif /* __linux__ */
#ifdef MSW
if (!SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS))
fprintf(stderr, "pd: couldn't set high priority class\n");
#endif
#ifdef __APPLE__
if (sys_hipriority)
{
struct sched_param param;
int policy = SCHED_RR;
int err;
param.sched_priority = 80; /* adjust 0 : 100 */
err = pthread_setschedparam(pthread_self(), policy, ¶m);
if (err)
post("warning: high priority scheduling failed\n");
}
#endif /* __APPLE__ */
if (!sys_nogui && !sys_guisetportnumber)
{
if (sys_verbose)
fprintf(stderr, "Waiting for connection request... \n");
if (listen(xsock, 5) < 0) sys_sockerror("listen");
sys_guisock = accept(xsock, (struct sockaddr *) &server,
(socklen_t *)&len);
#ifdef OOPS
sys_closesocket(xsock);
#endif
if (sys_guisock < 0) sys_sockerror("accept");
if (sys_verbose)
fprintf(stderr, "... connected\n");
}
if (!sys_nogui)
{
char buf[256], buf2[256];
sys_socketreceiver = socketreceiver_new(0, 0, 0, 0);
sys_addpollfn(sys_guisock, (t_fdpollfn)socketreceiver_read,
sys_socketreceiver);
/* here is where we start the pinging. */
#if defined(__linux__) || defined(IRIX)
if (sys_hipriority)
gui_vmess("gui_watchdog", "");
#endif
sys_get_audio_apis(buf);
sys_get_midi_apis(buf2);
// sys_vgui("pdtk_pd_startup {%s} %s %s {%s} %s\n", pd_version, buf, buf2,
// sys_font, sys_fontweight);
t_binbuf *aapis = binbuf_new(), *mapis = binbuf_new();
sys_get_audio_apis2(aapis);
sys_get_midi_apis2(mapis);
gui_start_vmess("gui_startup", "sss",
pd_version,
sys_font,
sys_fontweight);
int i;
gui_start_array(); // audio apis
for (i = 0; i < binbuf_getnatom(aapis); i+=2)
{
gui_s(atom_getsymbol(binbuf_getvec(aapis)+i)->s_name);
gui_i(atom_getint(binbuf_getvec(aapis)+i+1));
}
gui_end_array();
gui_start_array(); // midi apis
for (i = 0; i < binbuf_getnatom(mapis); i+=2)
{
gui_s(atom_getsymbol(binbuf_getvec(mapis)+i)->s_name);
gui_i(atom_getint(binbuf_getvec(mapis)+i+1));
}
gui_end_array();
gui_end_vmess();
binbuf_free(aapis);
binbuf_free(mapis);
}
return (0);
}
extern void sys_exit(void);
/* This is called when something bad has happened, like a segfault.
Call glob_quit() below to exit cleanly.
LATER try to save dirty documents even in the bad case. */
void sys_bail(int n)
{
static int reentered = 0;
if (!reentered)
{
reentered = 1;
#ifndef __linux__ /* sys_close_audio() hangs if you're in a signal? */
fprintf(stderr, "closing audio...\n");
sys_close_audio();
fprintf(stderr, "closing MIDI...\n");
sys_close_midi();
fprintf(stderr, "... done.\n");
#endif
exit(n);
}
else _exit(1);
}
//extern t_pd *garray_arraytemplatecanvas;
//extern t_pd *garray_floattemplatecanvas;
extern void glob_closeall(void *dummy, t_floatarg fforce);
extern int do_not_redraw;
void glob_quit(void *dummy)
{
/* If we're going to try to cleanly close everything here, we should
do the same for all open patches and that is currently not the case,
so for the time being, let's just leave OS to deal with freeing of all
memory when the program exits... */
/* Let's try to cleanly remove invisible template canvases */
//if (garray_arraytemplatecanvas)
// canvas_free((t_canvas *)garray_arraytemplatecanvas);
//if (garray_floattemplatecanvas)
// canvas_free( (t_canvas *)garray_floattemplatecanvas);
canvas_suspend_dsp();
do_not_redraw = 1;
glob_closeall(0, 1);
//sys_vgui("exit\n");
gui_vmess("app_quit", "");
if (!sys_nogui)
{
sys_closesocket(sys_guisock);
sys_rmpollfn(sys_guisock);
}
sys_bail(0);
}