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/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Routines for local rtrace execution |
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*/ |
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#include "rholo.h" |
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#include "random.h" |
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#include "paths.h" |
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#include "selcall.h" |
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#include <signal.h> |
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#include <sys/time.h> |
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#ifndef MAXPROC |
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#define MAXPROC 16 |
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#define MAXPROC 64 |
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#endif |
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static char PFILE[] = "/usr/tmp/RHpersist"; /* persist file name */ |
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int nprocs = 0; /* running process count */ |
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static char pfile[] = TEMPLATE; /* persist file name */ |
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static int rtpd[MAXPROC][3]; /* process descriptors */ |
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static float *rtbuf = NULL; /* allocated i/o buffer */ |
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static int maxqlen = 0; /* maximum packets per queue */ |
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static int nprocs = 0; /* number of processes */ |
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static PACKET *pqueue[MAXPROC]; /* packet queues */ |
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static int pqlen[MAXPROC]; /* packet queue lengths */ |
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{ |
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static char buf1[8]; |
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int rmaxpack = 0; |
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int psiz, npt, n; |
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int psiz, n; |
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/* get number of processes */ |
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if ((npt = ncprocs) <= 0) |
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if (ncprocs <= 0 || nprocs > 0) |
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return(0); |
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if (npt > MAXPROC) { |
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if (ncprocs > MAXPROC) { |
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sprintf(errmsg, |
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"number of rtrace processes reduced from %d to %d", |
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npt, MAXPROC); |
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ncprocs, MAXPROC); |
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error(WARNING, errmsg); |
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npt = MAXPROC; |
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ncprocs = MAXPROC; |
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} |
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/* add compulsory options */ |
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rtargv[rtargc++] = "-i-"; |
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rtargv[rtargc++] = "-I-"; |
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rtargv[rtargc++] = "-h-"; |
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rtargv[rtargc++] = "-ld-"; |
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sprintf(buf1, "%d", RPACKSIZ); |
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rtargv[rtargc++] = "-x"; rtargv[rtargc++] = buf1; |
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rtargv[rtargc++] = "-y"; rtargv[rtargc++] = "0"; |
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rtargv[rtargc++] = "-fff"; |
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rtargv[rtargc++] = "-ovL"; |
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rtargv[rtargc++] = nowarn ? "-w-" : "-w+"; |
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if (npt > 1) { |
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rtargv[rtargc++] = "-PP"; rtargv[rtargc++] = PFILE; |
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if (rtargv[rtargc-1] != vval(OCTREE)) { |
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/* add compulsory options */ |
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rtargv[rtargc++] = "-i-"; |
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rtargv[rtargc++] = "-I-"; |
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rtargv[rtargc++] = "-h-"; |
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rtargv[rtargc++] = "-ld-"; |
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sprintf(buf1, "%d", RPACKSIZ); |
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rtargv[rtargc++] = "-x"; rtargv[rtargc++] = buf1; |
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rtargv[rtargc++] = "-y"; rtargv[rtargc++] = "0"; |
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rtargv[rtargc++] = "-fff"; |
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rtargv[rtargc++] = vbool(VDIST) ? "-ovl" : "-ovL"; |
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if (nowarn) |
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rtargv[rtargc++] = "-w-"; |
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if (ncprocs > 1) { |
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mktemp(pfile); |
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rtargv[rtargc++] = "-PP"; rtargv[rtargc++] = pfile; |
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} |
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rtargv[rtargc++] = vval(OCTREE); |
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rtargv[rtargc] = NULL; |
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} |
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rtargv[rtargc++] = vval(OCTREE); |
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rtargv[rtargc] = NULL; |
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maxqlen = 0; |
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for (nprocs = 0; nprocs < npt; nprocs++) { /* spawn children */ |
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for (nprocs = 0; nprocs < ncprocs; nprocs++) { /* spawn children */ |
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psiz = open_process(rtpd[nprocs], rtargv); |
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if (psiz <= 0) |
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error(SYSTEM, "cannot start rtrace process"); |
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if (!(maxqlen = n)) |
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error(INTERNAL, |
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"bad pipe buffer size assumption"); |
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sleep(2); |
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} else if (n != maxqlen) |
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error(INTERNAL, "varying pipe buffer size!"); |
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rmaxpack += n; |
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FILE *fp; |
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int pid; |
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if ((fp = fopen(PFILE, "r")) == NULL) |
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if ((fp = fopen(pfile, "r")) == NULL) |
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return; |
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if (fscanf(fp, "%*s %d", &pid) != 1 || kill(pid, SIGALRM) < 0) |
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unlink(PFILE); |
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unlink(pfile); |
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fclose(fp); |
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} |
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if (rv > 0) |
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status = rv; |
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} |
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free((char *)rtbuf); |
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free((void *)rtbuf); |
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rtbuf = NULL; |
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maxqlen = 0; |
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return(status); |
