| 1 |
– |
/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
| 2 |
– |
|
| 1 |
|
#ifndef lint |
| 2 |
< |
static char SCCSid[] = "$SunId$ SGI"; |
| 2 |
> |
static const char RCSid[] = "$Id$"; |
| 3 |
|
#endif |
| 6 |
– |
|
| 4 |
|
/* |
| 5 |
|
* Routines for local rtrace execution |
| 6 |
|
*/ |
| 7 |
|
|
| 8 |
+ |
#include <signal.h> |
| 9 |
+ |
#include <sys/time.h> |
| 10 |
+ |
#include <string.h> |
| 11 |
+ |
|
| 12 |
|
#include "rholo.h" |
| 13 |
|
#include "random.h" |
| 14 |
|
#include "paths.h" |
| 15 |
|
#include "selcall.h" |
| 16 |
< |
#include <signal.h> |
| 16 |
< |
#include <sys/time.h> |
| 16 |
> |
#include "rtprocess.h" |
| 17 |
|
|
| 18 |
|
#ifndef MAXPROC |
| 19 |
< |
#define MAXPROC 16 |
| 19 |
> |
#define MAXPROC 64 |
| 20 |
|
#endif |
| 21 |
|
|
| 22 |
+ |
int nprocs = 0; /* running process count */ |
| 23 |
+ |
|
| 24 |
|
static char pfile[] = TEMPLATE; /* persist file name */ |
| 25 |
|
|
| 26 |
< |
static int rtpd[MAXPROC][3]; /* process descriptors */ |
| 26 |
> |
static SUBPROC rtpd[MAXPROC]; /* process descriptors */ |
| 27 |
|
static float *rtbuf = NULL; /* allocated i/o buffer */ |
| 28 |
< |
static int maxqlen = 0; /* maximum packets per queue */ |
| 27 |
< |
static int nprocs = 0; /* number of processes */ |
| 28 |
> |
static int maxqlen; /* maximum packets per queue */ |
| 29 |
|
|
| 30 |
|
static PACKET *pqueue[MAXPROC]; /* packet queues */ |
| 31 |
|
static int pqlen[MAXPROC]; /* packet queue lengths */ |
| 32 |
|
|
| 33 |
+ |
static int bestout(void); |
| 34 |
+ |
static int slots_avail(void); |
| 35 |
+ |
static void queue_packet(PACKET *p); |
| 36 |
+ |
static PACKET * get_packets(int poll); |
| 37 |
+ |
static void killpersist(void); |
| 38 |
|
|
| 39 |
+ |
|
| 40 |
|
int |
| 41 |
< |
start_rtrace() /* start rtrace process */ |
| 41 |
> |
start_rtrace(void) /* start rtrace process */ |
| 42 |
|
{ |
| 43 |
|
static char buf1[8]; |
| 44 |
|
int rmaxpack = 0; |
| 45 |
< |
int psiz, npt, n; |
| 45 |
> |
int psiz, n; |
| 46 |
|
/* get number of processes */ |
| 47 |
< |
if ((npt = ncprocs) <= 0) |
| 47 |
> |
if (ncprocs <= 0 || nprocs > 0) |
| 48 |
|
return(0); |
| 49 |
< |
if (npt > MAXPROC) { |
| 49 |
> |
if (ncprocs > MAXPROC) { |
| 50 |
|
sprintf(errmsg, |
| 51 |
|
"number of rtrace processes reduced from %d to %d", |
| 52 |
< |
npt, MAXPROC); |
| 52 |
> |
ncprocs, MAXPROC); |
| 53 |
|
error(WARNING, errmsg); |
| 54 |
< |
npt = MAXPROC; |
| 54 |
> |
ncprocs = MAXPROC; |
| 55 |
|
} |
| 56 |
< |
/* add compulsory options */ |
| 57 |
< |
rtargv[rtargc++] = "-i-"; |
| 58 |
< |
rtargv[rtargc++] = "-I-"; |
| 59 |
< |
rtargv[rtargc++] = "-h-"; |
| 60 |
< |
rtargv[rtargc++] = "-ld-"; |
| 61 |
< |
sprintf(buf1, "%d", RPACKSIZ); |
| 62 |
< |
rtargv[rtargc++] = "-x"; rtargv[rtargc++] = buf1; |
| 63 |
< |
rtargv[rtargc++] = "-y"; rtargv[rtargc++] = "0"; |
| 64 |
< |
rtargv[rtargc++] = "-fff"; |
| 65 |
< |
rtargv[rtargc++] = vbool(VDIST) ? "-ovl" : "-ovL"; |
| 66 |
< |
rtargv[rtargc++] = nowarn ? "-w-" : "-w+"; |
| 67 |
< |
if (npt > 1) { |
| 68 |
< |
mktemp(pfile); |
| 69 |
< |
rtargv[rtargc++] = "-PP"; rtargv[rtargc++] = pfile; |
| 56 |
> |
if (rtargv[rtargc-1] != vval(OCTREE)) { |
| 57 |
> |
/* add compulsory options */ |
| 58 |
> |
rtargv[rtargc++] = "-i-"; |
| 59 |
> |
rtargv[rtargc++] = "-I-"; |
| 60 |
> |
rtargv[rtargc++] = "-h-"; |
| 61 |
> |
rtargv[rtargc++] = "-ld-"; |
| 62 |
> |
rtargv[rtargc++] = "-co-"; |
| 63 |
> |
sprintf(buf1, "%d", RPACKSIZ); |
| 64 |
> |
rtargv[rtargc++] = "-x"; rtargv[rtargc++] = buf1; |
| 65 |
> |
rtargv[rtargc++] = "-y"; rtargv[rtargc++] = "0"; |
| 66 |
> |
rtargv[rtargc++] = "-fff"; |
| 67 |
> |
rtargv[rtargc++] = vbool(VDIST) ? "-ovl" : "-ovL"; |
| 68 |
> |
if (nowarn) |
| 69 |
> |
rtargv[rtargc++] = "-w-"; |
| 70 |
> |
if (ncprocs > 1) { |
| 71 |
> |
mktemp(pfile); |
| 72 |
> |
rtargv[rtargc++] = "-PP"; rtargv[rtargc++] = pfile; |
| 73 |
> |
} |
| 74 |
> |
rtargv[rtargc++] = vval(OCTREE); |
| 75 |
> |
rtargv[rtargc] = NULL; |
| 76 |
|
} |
| 64 |
– |
rtargv[rtargc++] = vval(OCTREE); |
| 65 |
– |
rtargv[rtargc] = NULL; |
| 77 |
|
maxqlen = 0; |
| 78 |
< |
for (nprocs = 0; nprocs < npt; nprocs++) { /* spawn children */ |
| 79 |
< |
psiz = open_process(rtpd[nprocs], rtargv); |
| 78 |
> |
for (nprocs = 0; nprocs < ncprocs; nprocs++) { /* spawn children */ |
| 79 |
> |
psiz = open_process(&rtpd[nprocs], rtargv); |
| 80 |
|
if (psiz <= 0) |
| 81 |
|
error(SYSTEM, "cannot start rtrace process"); |
| 82 |
< |
n = psiz/(RPACKSIZ*6*sizeof(float)); |
| 83 |
< |
if (maxqlen == 0) { |
| 84 |
< |
if (!(maxqlen = n)) |
| 85 |
< |
error(INTERNAL, |
| 75 |
< |
"bad pipe buffer size assumption"); |
| 82 |
> |
n = psiz/(RPACKSIZ*6*sizeof(float)) + 1; |
| 83 |
> |
if (!maxqlen) { |
| 84 |
> |
maxqlen = n; |
| 85 |
> |
sleep(2); |
| 86 |
|
} else if (n != maxqlen) |
| 87 |
|
error(INTERNAL, "varying pipe buffer size!"); |
| 88 |
|
rmaxpack += n; |
| 95 |
|
|
| 96 |
|
|
| 97 |
|
static int |
| 98 |
< |
bestout() /* get best process to process packet */ |
| 98 |
> |
bestout(void) /* get best process to process packet */ |
| 99 |
|
{ |
| 100 |
|
int cnt; |
| 101 |
< |
register int pn, i; |
| 101 |
> |
int pn, i; |
| 102 |
|
|
| 103 |
|
pn = 0; /* find shortest queue */ |
| 104 |
|
for (i = 1; i < nprocs; i++) |
| 112 |
|
if (pqlen[i] == pqlen[pn]) |
| 113 |
|
cnt++; |
| 114 |
|
/* break ties fairly */ |
| 115 |
< |
if ((cnt = random() % cnt)) |
| 115 |
> |
if ((cnt = irandom(cnt))) |
| 116 |
|
for (i = pn; i < nprocs; i++) |
| 117 |
|
if (pqlen[i] == pqlen[pn] && !cnt--) |
| 118 |
|
return(i); |
| 120 |
|
} |
| 121 |
|
|
| 122 |
|
|
| 123 |
< |
int |
| 124 |
< |
slots_avail() /* count packet slots available */ |
| 123 |
> |
static int |
| 124 |
> |
slots_avail(void) /* count packet slots available */ |
| 125 |
|
{ |
| 126 |
< |
register int nslots = 0; |
| 127 |
< |
register int i; |
| 126 |
> |
int nslots = 0; |
| 127 |
> |
int i; |
| 128 |
|
|
| 129 |
|
for (i = nprocs; i--; ) |
| 130 |
|
nslots += maxqlen - pqlen[i]; |
| 132 |
|
} |
| 133 |
|
|
| 134 |
|
|
| 135 |
< |
queue_packet(p) /* queue up a beam packet */ |
| 136 |
< |
register PACKET *p; |
| 135 |
> |
static void |
| 136 |
> |
queue_packet( /* queue up a beam packet */ |
| 137 |
> |
PACKET *p |
| 138 |
> |
) |
| 139 |
|
{ |
| 140 |
|
int pn, n; |
| 141 |
|
/* determine process to write to */ |
| 144 |
|
/* write out the packet */ |
| 145 |
|
packrays(rtbuf, p); |
| 146 |
|
if ((n = p->nr) < RPACKSIZ) /* add flush block? */ |
| 147 |
< |
bzero((char *)(rtbuf+6*n++), 6*sizeof(float)); |
| 148 |
< |
if (writebuf(rtpd[pn][1], (char *)rtbuf, 6*sizeof(float)*n) < 0) |
| 147 |
> |
memset((char *)(rtbuf+6*n++), '\0', 6*sizeof(float)); |
| 148 |
> |
if (writebuf(rtpd[pn].w, rtbuf, 6*sizeof(float)*n) < 0) |
| 149 |
|
error(SYSTEM, "write error in queue_packet"); |
| 150 |
|
p->next = NULL; |
| 151 |
|
if (!pqlen[pn]++) /* add it to the end of the queue */ |
| 152 |
|
pqueue[pn] = p; |
| 153 |
|
else { |
| 154 |
< |
register PACKET *rpl = pqueue[pn]; |
| 154 |
> |
PACKET *rpl = pqueue[pn]; |
| 155 |
|
while (rpl->next != NULL) |
| 156 |
|
rpl = rpl->next; |
| 157 |
|
rpl->next = p; |
| 159 |
|
} |
| 160 |
|
|
| 161 |
|
|
| 162 |
< |
PACKET * |
| 163 |
< |
get_packets(poll) /* read packets from rtrace processes */ |
| 164 |
< |
int poll; |
| 162 |
> |
static PACKET * |
| 163 |
> |
get_packets( /* read packets from rtrace processes */ |
| 164 |
> |
int poll |
| 165 |
> |
) |
| 166 |
|
{ |
| 167 |
|
static struct timeval tpoll; /* zero timeval struct */ |
| 168 |
|
fd_set readset, errset; |
| 169 |
|
PACKET *pldone = NULL, *plend; |
| 170 |
< |
register PACKET *p; |
| 170 |
> |
PACKET *p; |
| 171 |
|
int n, nr; |
| 172 |
< |
register int pn; |
| 172 |
> |
int pn; |
| 173 |
|
float *bp; |
| 174 |
|
/* prepare select call */ |
| 175 |
|
FD_ZERO(&readset); FD_ZERO(&errset); n = 0; |
| 176 |
|
for (pn = nprocs; pn--; ) { |
| 177 |
|
if (pqlen[pn]) |
| 178 |
< |
FD_SET(rtpd[pn][0], &readset); |
| 179 |
< |
FD_SET(rtpd[pn][0], &errset); |
| 180 |
< |
if (rtpd[pn][0] >= n) |
| 181 |
< |
n = rtpd[pn][0] + 1; |
| 178 |
> |
FD_SET(rtpd[pn].r, &readset); |
| 179 |
> |
FD_SET(rtpd[pn].r, &errset); |
| 180 |
> |
if (rtpd[pn].r >= n) |
| 181 |
> |
n = rtpd[pn].r + 1; |
| 182 |
|
} |
| 183 |
|
/* make the call */ |
| 184 |
|
n = select(n, &readset, (fd_set *)NULL, &errset, |
| 192 |
|
return(NULL); |
| 193 |
|
/* make read call(s) */ |
| 194 |
|
for (pn = 0; pn < nprocs; pn++) { |
| 195 |
< |
if (!FD_ISSET(rtpd[pn][0], &readset) && |
| 196 |
< |
!FD_ISSET(rtpd[pn][0], &errset)) |
| 195 |
> |
if (!FD_ISSET(rtpd[pn].r, &readset) && |
| 196 |
> |
!FD_ISSET(rtpd[pn].r, &errset)) |
| 197 |
|
continue; |
| 198 |
|
reread: |
| 199 |
< |
n = read(rtpd[pn][0], (char *)rtbuf, |
| 199 |
> |
n = read(rtpd[pn].r, (char *)rtbuf, |
| 200 |
|
4*sizeof(float)*RPACKSIZ*pqlen[pn]); |
| 201 |
|
if (n < 0) { |
| 202 |
< |
if (errno == EINTR | errno == EAGAIN) |
| 202 |
> |
if ((errno == EINTR) | (errno == EAGAIN)) |
| 203 |
|
goto reread; |
| 204 |
|
error(SYSTEM, "read error in get_packets"); |
| 205 |
|
} |
| 211 |
|
nr++; /* add flush block */ |
| 212 |
|
n -= 4*sizeof(float)*nr; |
| 213 |
|
if (n < 0) { /* get remainder */ |
| 214 |
< |
n += readbuf(rtpd[pn][0], |
| 214 |
> |
n += readbuf(rtpd[pn].r, |
| 215 |
|
(char *)(bp+4*nr)+n, -n); |
| 216 |
|
if (n) |
| 217 |
|
goto eoferr; |
| 235 |
|
return(pldone); /* return finished packets */ |
| 236 |
|
eoferr: |
| 237 |
|
error(USER, "rtrace process died"); |
| 238 |
+ |
return NULL; /* pro forma return */ |
| 239 |
|
} |
| 240 |
|
|
| 241 |
|
|
| 242 |
|
PACKET * |
| 243 |
< |
do_packets(pl) /* queue a packet list, return finished */ |
| 244 |
< |
register PACKET *pl; |
| 243 |
> |
do_packets( /* queue a packet list, return finished */ |
| 244 |
> |
PACKET *pl |
| 245 |
> |
) |
| 246 |
|
{ |
| 247 |
< |
register PACKET *p; |
| 247 |
> |
PACKET *p; |
| 248 |
|
/* consistency check */ |
| 249 |
|
if (nprocs < 1) |
| 250 |
|
error(CONSISTENCY, "do_packets called with no active process"); |
| 258 |
|
|
| 259 |
|
|
| 260 |
|
PACKET * |
| 261 |
< |
flush_queue() /* empty all rtrace queues */ |
| 261 |
> |
flush_queue(void) /* empty all rtrace queues */ |
| 262 |
|
{ |
| 263 |
|
PACKET *rpdone = NULL; |
| 264 |
< |
register PACKET *rpl; |
| 264 |
> |
PACKET *rpl = NULL; |
| 265 |
|
float *bp; |
| 266 |
< |
register PACKET *p; |
| 266 |
> |
PACKET *p; |
| 267 |
|
int i, n, nr; |
| 268 |
|
|
| 269 |
|
for (i = 0; i < nprocs; i++) |
| 280 |
|
if (rpl->nr < RPACKSIZ) |
| 281 |
|
nr++; /* add flush block */ |
| 282 |
|
} |
| 283 |
< |
n = readbuf(rtpd[i][0], (char *)rtbuf, |
| 269 |
< |
4*sizeof(float)*nr); |
| 283 |
> |
n = readbuf(rtpd[i].r, rtbuf, 4*sizeof(float)*nr); |
| 284 |
|
if (n < 0) |
| 285 |
|
error(SYSTEM, "read failure in flush_queue"); |
| 286 |
|
bp = rtbuf; /* process packets */ |
| 301 |
|
} |
| 302 |
|
|
| 303 |
|
|
| 304 |
< |
static |
| 305 |
< |
killpersist() /* kill persistent process */ |
| 304 |
> |
static void |
| 305 |
> |
killpersist(void) /* kill persistent process */ |
| 306 |
|
{ |
| 307 |
|
FILE *fp; |
| 308 |
|
int pid; |
| 316 |
|
|
| 317 |
|
|
| 318 |
|
int |
| 319 |
< |
end_rtrace() /* close rtrace process(es) */ |
| 319 |
> |
end_rtrace(void) /* close rtrace process(es) */ |
| 320 |
|
{ |
| 321 |
|
int status = 0, rv; |
| 322 |
|
|
| 323 |
|
if (nprocs > 1) |
| 324 |
|
killpersist(); |
| 325 |
< |
while (nprocs > 0) { |
| 326 |
< |
rv = close_process(rtpd[--nprocs]); |
| 327 |
< |
if (rv > 0) |
| 314 |
< |
status = rv; |
| 315 |
< |
} |
| 316 |
< |
free((char *)rtbuf); |
| 325 |
> |
status = close_processes(rtpd, nprocs); |
| 326 |
> |
nprocs = 0; |
| 327 |
> |
free((void *)rtbuf); |
| 328 |
|
rtbuf = NULL; |
| 329 |
|
maxqlen = 0; |
| 330 |
|
return(status); |
