s_inter.c 43.9 KB
Newer Older
Miller Puckette's avatar
Miller Puckette committed
1
2
3
4
5
6
7
/* 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. */

Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
8
9
#include "config.h"

Miller Puckette's avatar
Miller Puckette committed
10
11
12
13
#include "m_pd.h"
#include "s_stuff.h"
#include "m_imp.h"
#include "g_canvas.h"   /* for GUI queueing stuff */
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
14
15

#ifdef HAVE_UNISTD_H
Miller Puckette's avatar
Miller Puckette committed
16
#include <unistd.h>
17
18
#else // if isatty exists outside unistd, please add another #ifdef
static int isatty(int fd) {return 0;}
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
19
20
21
#endif

#ifndef _WIN32
Miller Puckette's avatar
Miller Puckette committed
22
23
24
25
26
27
28
29
30
#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
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
31

Miller Puckette's avatar
Miller Puckette committed
32
33
34
#ifdef HAVE_BSTRING_H
#include <bstring.h>
#endif
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
35
36

#ifdef HAVE_IO_H
Miller Puckette's avatar
Miller Puckette committed
37
#include <io.h>
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
38
39
40
#endif 

#ifdef _WIN32
Miller Puckette's avatar
Miller Puckette committed
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
#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>
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
63
#include <glob.h>
Miller Puckette's avatar
Miller Puckette committed
64
65
66
67
68
69
70
71
72
73
74
75
#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
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
76
#define WISHAPP "wish85.exe"
Miller Puckette's avatar
Miller Puckette committed
77
78
79
80
81
82
83
84
#endif

#ifdef __linux__
#define LOCALHOST "127.0.0.1"
#else
#define LOCALHOST "localhost"
#endif

85
86
static int stderr_isatty;

87
88
#include <execinfo.h>

Miller Puckette's avatar
Miller Puckette committed
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
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);

121
122
123
124
125
#ifdef QTGUI
pthread_t sys_thread_main;
pthread_t sys_thread_qt;
#endif

Miller Puckette's avatar
Miller Puckette committed
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
/* ----------- 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);
}

Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
232
#ifdef HAVE_UNISTD_H
Miller Puckette's avatar
Miller Puckette committed
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
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;
Miller Puckette's avatar
Miller Puckette committed
276
277
    int sec = (int)(microsec/1000000);
    microsec %= 1000000;
Miller Puckette's avatar
Miller Puckette committed
278
#if 0
Miller Puckette's avatar
Miller Puckette committed
279
    fprintf(stderr, "timer %d:%d\n", sec, microsec);
Miller Puckette's avatar
Miller Puckette committed
280
281
282
#endif
    gonzo.it_interval.tv_sec = 0;
    gonzo.it_interval.tv_usec = 0;
Miller Puckette's avatar
Miller Puckette committed
283
    gonzo.it_value.tv_sec = sec;
Miller Puckette's avatar
Miller Puckette committed
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
    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;
444
    int indx, first = 1;
Miller Puckette's avatar
Miller Puckette committed
445
446
447
    int inhead = x->sr_inhead;
    int intail = x->sr_intail;
    char *inbuf = x->sr_inbuf;
448
449
    for (indx = intail; first || (indx != inhead);
        first = 0, (indx = (indx+1)&(INBUFSIZE-1)))
Miller Puckette's avatar
Miller Puckette committed
450
451
452
453
454
455
456
457
458
    {
            /* 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);
459
460
461
462
463
            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);
Miller Puckette's avatar
Miller Puckette committed
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
            }
            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);
570
571
                    if (x->sr_inhead == x->sr_intail)
                        break;
Miller Puckette's avatar
Miller Puckette committed
572
573
574
575
576
577
578
579
                }
            }
        }
    }
}

void sys_closesocket(int fd)
{
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
580
#ifdef HAVE_UNISTD_H
Miller Puckette's avatar
Miller Puckette committed
581
582
583
584
585
586
587
588
589
590
    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 */
591
592
#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 */
Miller Puckette's avatar
Miller Puckette committed
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659

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;
    }
}

660
661
662
663
664
665
666
667
668
669
670
671
672
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
}

673
674
675
676
static int lastend = -1;
void sys_vvgui(const char *fmt, va_list ap) {
	va_list aq;
	va_copy(aq,ap);
677
    int msglen;
Miller Puckette's avatar
Miller Puckette committed
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706

    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);

707
        va_copy(ap,aq);
Miller Puckette's avatar
Miller Puckette committed
708
709
710
711
712
713
714
715
        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;
    }
716
    if (sys_debuglevel & DEBUG_MESSUP) {
717
        //blargh();
718
719
720
721
722
723
724
        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);
725
    }
Miller Puckette's avatar
Miller Puckette committed
726
727
    sys_guibufhead += msglen;
    sys_bytessincelastping += msglen;
728
    if (sys_guibufhead>0) lastend=sys_guibuf[sys_guibufhead-1];
Mathieu L Bouchard's avatar
Mathieu L Bouchard committed
729
730
    if (sys_guibufhead>1 && strcmp(sys_guibuf+sys_guibufhead-2,"\\\n")==0)
        lastend=' ';
Miller Puckette's avatar
Miller Puckette committed
731
}
732
#undef sys_vgui
733
#undef sys_gui
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
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)
Miller Puckette's avatar
Miller Puckette committed
751
752
753
754
{
    sys_vgui("%s", s);
}

Jonathan Wilkes's avatar
Jonathan Wilkes committed
755
char *escape_double_quotes(const char *src) {
756
    static char ret[MAXPDSTRING*4+1];
Jonathan Wilkes's avatar
Jonathan Wilkes committed
757
    char *escaped = ret; 
758
    int i, len = MAXPDSTRING*4;
Jonathan Wilkes's avatar
Jonathan Wilkes committed
759
760
761
762
763
764
765
766
767
768
769
    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 "
770
                       "we can send to the gui.\n");
Jonathan Wilkes's avatar
Jonathan Wilkes committed
771
772
773
    return ret;
}

774
775
776
777
778
779
void gui_end_vmess(void)
{
    sys_gui("\v");
}


Jonathan Wilkes's avatar
Jonathan Wilkes committed
780
781
782
783
784
785
786
787
/* 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);
788
789
790
    sys_vgui("\a%s ", sel); /* use a bell to signal the beginning of msg
                               (this can be replaced with any other obscure
                                ascii escape)                            */
Jonathan Wilkes's avatar
Jonathan Wilkes committed
791
792
793
794
795
796
797
798
799
800
801
802
803
804
    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;
805
        case 'x': sys_vgui("\"x%.6lx\"", va_arg(ap, long unsigned int)); break;
Jonathan Wilkes's avatar
Jonathan Wilkes committed
806
807
808
809
810
811
812
813
        //case 'p': SETPOINTER(at, va_arg(ap, t_gpointer *)); break;
        default: goto done;
        }
        nargs++;
    }
done:
    va_end(ap);
    if (end)
814
        gui_end_vmess();
Jonathan Wilkes's avatar
Jonathan Wilkes committed
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
}

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;
832
static int gui_array_tail;
Jonathan Wilkes's avatar
Jonathan Wilkes committed
833
834
void gui_start_array(void)
{
835
    if (gui_array_head && !gui_array_tail)
836
837
838
        sys_gui("[");
    else
        sys_gui(",[");
Jonathan Wilkes's avatar
Jonathan Wilkes committed
839
    gui_array_head = 1;
840
    gui_array_tail = 0;
Jonathan Wilkes's avatar
Jonathan Wilkes committed
841
842
}

843
void gui_f(t_float f)
Jonathan Wilkes's avatar
Jonathan Wilkes committed
844
{
845
    if (gui_array_head && !gui_array_tail)
Jonathan Wilkes's avatar
Jonathan Wilkes committed
846
847
848
849
850
    {
        sys_vgui("%g", f);
    }
    else
        sys_vgui(",%g", f);
851
    gui_array_head = 0;
852
    gui_array_tail = 0;
Jonathan Wilkes's avatar
Jonathan Wilkes committed
853
854
}

855
void gui_i(int i)
Jonathan Wilkes's avatar
Jonathan Wilkes committed
856
{
857
    if (gui_array_head && !gui_array_tail)
Jonathan Wilkes's avatar
Jonathan Wilkes committed
858
859
860
861
862
    {
        sys_vgui("%d", i);
    }
    else
        sys_vgui(",%d", i);
863
    gui_array_head = 0;
864
    gui_array_tail = 0;
Jonathan Wilkes's avatar
Jonathan Wilkes committed
865
866
}

867
void gui_s(const char *s) 
Jonathan Wilkes's avatar
Jonathan Wilkes committed
868
{
869
    if (gui_array_head && !gui_array_tail)
Jonathan Wilkes's avatar
Jonathan Wilkes committed
870
871
872
873
874
    {
        sys_vgui("\"%s\"", escape_double_quotes(s));
    }
    else
        sys_vgui(",\"%s\"", escape_double_quotes(s));
875
    gui_array_head = 0;
876
    gui_array_tail = 0;
Jonathan Wilkes's avatar
Jonathan Wilkes committed
877
878
879
880
881
}

void gui_end_array(void)
{
    sys_gui("]");
882
    gui_array_tail = 1;
Jonathan Wilkes's avatar
Jonathan Wilkes committed
883
884
}

885
int sys_flushtogui( void)
Miller Puckette's avatar
Miller Puckette committed
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
{
    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");
Jonathan Wilkes's avatar
Jonathan Wilkes committed
938
            gui_vmess("gui_ping", "");
Miller Puckette's avatar
Miller Puckette committed
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
            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;
1011
    while (sys_guiqueuehead && sys_guiqueuehead->gq_client == client)
Miller Puckette's avatar
Miller Puckette committed
1012
    {
1013
1014
1015
        gq = sys_guiqueuehead;
        sys_guiqueuehead = sys_guiqueuehead->gq_next;
        t_freebytes(gq, sizeof(*gq));
Miller Puckette's avatar
Miller Puckette committed
1016
    }
1017
1018
    if (!sys_guiqueuehead)
        return;
1019
    for (gq = sys_guiqueuehead; gq2 = gq->gq_next; gq = gq2)
Miller Puckette's avatar
Miller Puckette committed
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
        if (gq2->gq_client == client)
    {
        gq->gq_next = gq2->gq_next;
        t_freebytes(gq2, sizeof(*gq2));
        break;
    }
}

int sys_pollgui(void)
{
1030
    // return (sys_domicrosleep(0, 1) || sys_poll_togui());
1031
1032
    // "fix" for sluggish gui proposed by Miller on 12/16/2012
    return (sys_domicrosleep(0, 1) + sys_poll_togui());
Miller Puckette's avatar
Miller Puckette committed
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
}



/* --------------------- 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

Miller Puckette's avatar
Miller Puckette committed
1054
1055
#define MAXFONTS 21
static int defaultfontshit[MAXFONTS] = {
Miller Puckette's avatar
Miller Puckette committed
1056
1057
1058
1059
    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))

1060
1061
1062
1063
1064
1065
1066
1067
1068

#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

Miller Puckette's avatar
Miller Puckette committed
1069
1070
1071
1072
1073
1074
1075
1076
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;
1077
    stderr_isatty = isatty(2);
Miller Puckette's avatar
Miller Puckette committed
1078
1079
1080
1081
#ifdef MSW
    short version = MAKEWORD(2, 0);
    WSADATA nobby;
#endif
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1082
#ifdef HAVE_UNISTD_H
Miller Puckette's avatar
Miller Puckette committed
1083
1084
1085
1086
1087
1088
1089
    int stdinpipe[2];
#endif
    /* create an empty FD poll list */
    sys_fdpoll = (t_fdpoll *)t_getbytes(0);
    sys_nfdpoll = 0;
    inbinbuf = binbuf_new();

Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1090
#ifdef HAVE_UNISTD_H
Miller Puckette's avatar
Miller Puckette committed
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
    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
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1120
#ifdef HAVE_UNISTD_H
Miller Puckette's avatar
Miller Puckette committed
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
        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);


Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1229
#ifdef HAVE_UNISTD_H
1230
1231
1232
        if (!sys_guicmd)
        {
#ifdef __APPLE__
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1233
            int i;
1234
            struct stat statbuf;
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
            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);
1274
1275
1276
#else
            sprintf(cmdbuf,
                "TCL_LIBRARY=\"%s/tcl/library\" TK_LIBRARY=\"%s/tk/library\" \
1277
1278
                 \"%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"));
Jonathan Wilkes's avatar
Jonathan Wilkes committed
1279
1280

/* SUPERHACK - let's just load node-webkit and see what happens */
1281
1282
//            sprintf(cmdbuf,
//                  "/home/user/Downloads/nwjs-v0.12.2-linux-ia32/nw "
1283
//                  "/home/nu/Downloads/nwjs-v0.12.0-alpha2-linux-ia32/nw "
1284
1285
1286
1287
//                "/home/user/pd-nw/pd/nw/ %d localhost %s\n",
//                portno,
//                (sys_k12_mode ? "pd-l2ork-k12" : "pd-l2ork"));

1288
fprintf(stderr, "guidir is %s\n", guidir);
1289

1290
1291
1292
1293
1294
            /* For some reason, the nw binary doesn't give you access to
               the first argument-- this is the path to the directory where
               package.json lives (or the zip file if it's compressed). So
               we add it again as the last argument to make sure we can fetch
               it on the GUI side. */
1295
            sprintf(cmdbuf,
1296
                "%s/nw/nw %s %d localhost %s %s\n",
1297
1298
1299
1300
                guidir,
                guidir,
//                "/home/user/pd-nw/pd/nw",
                portno,
1301
1302
                (sys_k12_mode ? "pd-l2ork-k12" : "pd-l2ork"),
                guidir);
Jonathan Wilkes's avatar
Jonathan Wilkes committed
1303

1304
1305
1306
1307
1308
1309
1310
#endif
            sys_guicmd = cmdbuf;
        }

        if (sys_verbose) 
            fprintf(stderr, "%s", sys_guicmd);

Miller Puckette's avatar
Miller Puckette committed
1311
1312
1313
1314
1315
1316
1317
1318
1319
        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 */
        {
1320
            setuid(getuid());          /* lose setuid priveliges */
Miller Puckette's avatar
Miller Puckette committed
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
#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);
1341
       }
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1342
#endif /* HAVE_UNISTD_H */
Miller Puckette's avatar
Miller Puckette committed
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369

#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 */
    }
1370
1371
1372
1373
    
#ifdef QTGUI
	if (sys_qtcanvas) sys_start_qt();
#endif
Miller Puckette's avatar
Miller Puckette committed
1374
1375
1376
1377

#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
1378
1379
1380
1381
1382
1383
1384
1385
        (-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 */
Miller Puckette's avatar
Miller Puckette committed
1386
    if (sys_hipriority == -1)
1387
        sys_hipriority = 1; //(!getuid() || !geteuid());
Miller Puckette's avatar
Miller Puckette committed
1388
    
1389
    sprintf(cmdbuf, "%s/pd-watchdog\n", guidir);
Miller Puckette's avatar
Miller Puckette committed
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
    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)
        {
1405
            setuid(getuid());      /* lose setuid priveliges */
Miller Puckette's avatar
Miller Puckette committed
1406
1407
1408
1409
1410
1411
            sys_sockerror("pipe");
            return (1);
        }
        watchpid = fork();
        if (watchpid < 0)
        {
1412
            setuid(getuid());      /* lose setuid priveliges */
Miller Puckette's avatar
Miller Puckette committed
1413
1414
1415
1416
1417
1418
1419
1420
            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);
1421
            setuid(getuid());      /* lose setuid priveliges */
Miller Puckette's avatar
Miller Puckette committed
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
            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);
1437
            setuid(getuid());      /* lose setuid priveliges */
Miller Puckette's avatar
Miller Puckette committed
1438
1439
1440
1441
1442
1443
1444
            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. */
        }
    }

1445
    setuid(getuid());          /* lose setuid priveliges */
Miller Puckette's avatar
Miller Puckette committed
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
#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, &param);
        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
1475
        sys_closesocket(xsock);
Miller Puckette's avatar
Miller Puckette committed
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
#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)
Jonathan Wilkes's avatar
Jonathan Wilkes committed
1491
             gui_vmess("gui_watchdog", "");
Miller Puckette's avatar
Miller Puckette committed
1492
1493
1494
#endif
         sys_get_audio_apis(buf);
         sys_get_midi_apis(buf2);
Jonathan Wilkes's avatar
Jonathan Wilkes committed
1495
1496
1497
//         sys_vgui("pdtk_pd_startup {%s} %s %s {%s} %s\n", pd_version, buf, buf2, 
//                  sys_font, sys_fontweight); 

1498
1499
1500
1501
        t_binbuf *aapis = binbuf_new(), *mapis = binbuf_new();
        sys_get_audio_apis2(aapis);
        sys_get_midi_apis2(mapis);
        gui_start_vmess("gui_startup", "sss",
Jonathan Wilkes's avatar
Jonathan Wilkes committed
1502
1503
1504
		  pd_version,
		  sys_font,
		  sys_fontweight);
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525

        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);
Miller Puckette's avatar
Miller Puckette committed
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
    }
    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);
}

1554
1555
1556
//extern t_pd *garray_arraytemplatecanvas;
//extern t_pd *garray_floattemplatecanvas;
extern void glob_closeall(void *dummy, t_floatarg fforce);
1557

1558
1559
extern int do_not_redraw;

Miller Puckette's avatar
Miller Puckette committed
1560
1561
void glob_quit(void *dummy)
{
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
    /* 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);
Jonathan Wilkes's avatar
Jonathan Wilkes committed
1575
1576
    //sys_vgui("exit\n");
    gui_vmess("app_quit", "");
Miller Puckette's avatar
Miller Puckette committed
1577
1578
    if (!sys_nogui)
    {
1579
        sys_closesocket(sys_guisock);
Miller Puckette's avatar
Miller Puckette committed
1580
1581
1582
1583
1584
        sys_rmpollfn(sys_guisock);
    }
    sys_bail(0); 
}