/* ----------------------------------------------------------------- init --- */ int MROOM::init(double p[], int n_args) { float outskip = p[0]; float inskip = p[1]; float dur = p[2]; ovamp = p[3]; xdim = p[4]; ydim = p[5]; float rvbtime = p[6]; reflect = p[7]; innerwidth = p[8]; inchan = n_args > 9 ? (int)p[9] : AVERAGE_CHANS; int quant = n_args > 10 ? (int)p[10] : DEFAULT_QUANTIZATION; if (outputchans != 2) return die("MROOM", "Requires stereo output."); float ringdur = (rvbtime > MAX_DELAY) ? rvbtime : MAX_DELAY; if (rtsetoutput(outskip, dur + ringdur, this) == -1) return DONT_SCHEDULE; if (rtsetinput(inskip, this) == -1) return DONT_SCHEDULE; insamps = (int)(dur * SR + 0.5); if (inchan >= inputChannels()) return die("MROOM", "You asked for channel %d of a %d-channel input file.", inchan, inputChannels()); if (inputChannels() == 1) inchan = 0; // ***FIXME: input validation for trajectory points? int ntimes = get_timeset(timepts, xvals, yvals); if (ntimes == 0) return die("MROOM", "Must have at least two timeset calls before MROOM."); traject(ntimes); tableset(SR, dur, POS_ARRAY_SIZE, xpostabs); tableset(SR, dur, POS_ARRAY_SIZE, ypostabs); int delsamps = (int)(MAX_DELAY * SR + 0.5); delayline = new float[delsamps]; delset(SR, delayline, deltabs, MAX_DELAY); /* Array dimensions taken from lib/rvbset.c (+ 2 extra for caution). */ int rvbsamps = (int)((0.1583 * SR) + 18 + 2); rvbarrayl = new float[rvbsamps]; rvbarrayr = new float[rvbsamps]; rvbset(SR, rvbtime, 0, rvbarrayl); rvbset(SR, rvbtime, 0, rvbarrayr); amparray = floc(1); if (amparray) { int amplen = fsize(1); tableset(SR, dur, amplen, amptabs); } else rtcmix_advise("MROOM", "Setting phrase curve to all 1's."); aamp = ovamp; /* in case amparray == NULL */ skip = (int)(SR / (float)resetval); quantskip = (int)(SR / (float)quant); return nSamps(); }
/* * The mother of all processes. */ int main(int argc, char *argv[]) { state_t initial_transition = runcom; char kenv_value[PATH_MAX]; int c; struct sigaction sa; sigset_t mask; /* Dispose of random users. */ if (getuid() != 0) errx(1, "%s", strerror(EPERM)); /* System V users like to reexec init. */ if (getpid() != 1) { #ifdef COMPAT_SYSV_INIT /* So give them what they want */ if (argc > 1) { if (strlen(argv[1]) == 1) { char runlevel = *argv[1]; int sig; switch (runlevel) { case '0': /* halt + poweroff */ sig = SIGUSR2; break; case '1': /* single-user */ sig = SIGTERM; break; case '6': /* reboot */ sig = SIGINT; break; case 'c': /* block further logins */ sig = SIGTSTP; break; case 'q': /* rescan /etc/ttys */ sig = SIGHUP; break; default: goto invalid; } kill(1, sig); _exit(0); } else invalid: errx(1, "invalid run-level ``%s''", argv[1]); } else #endif errx(1, "already running"); } /* * Note that this does NOT open a file... * Does 'init' deserve its own facility number? */ openlog("init", LOG_CONS, LOG_AUTH); /* * Create an initial session. */ if (setsid() < 0) warning("initial setsid() failed: %m"); /* * Establish an initial user so that programs running * single user do not freak out and die (like passwd). */ if (setlogin("root") < 0) warning("setlogin() failed: %m"); /* * This code assumes that we always get arguments through flags, * never through bits set in some random machine register. */ while ((c = getopt(argc, argv, "dsf")) != -1) switch (c) { case 'd': devfs = 1; break; case 's': initial_transition = single_user; break; case 'f': runcom_mode = FASTBOOT; break; default: warning("unrecognized flag '-%c'", c); break; } if (optind != argc) warning("ignoring excess arguments"); /* * We catch or block signals rather than ignore them, * so that they get reset on exec. */ handle(badsys, SIGSYS, 0); handle(disaster, SIGABRT, SIGFPE, SIGILL, SIGSEGV, SIGBUS, SIGXCPU, SIGXFSZ, 0); handle(transition_handler, SIGHUP, SIGINT, SIGTERM, SIGTSTP, SIGUSR1, SIGUSR2, 0); handle(alrm_handler, SIGALRM, 0); sigfillset(&mask); delset(&mask, SIGABRT, SIGFPE, SIGILL, SIGSEGV, SIGBUS, SIGSYS, SIGXCPU, SIGXFSZ, SIGHUP, SIGINT, SIGTERM, SIGTSTP, SIGALRM, SIGUSR1, SIGUSR2, 0); sigprocmask(SIG_SETMASK, &mask, (sigset_t *) 0); sigemptyset(&sa.sa_mask); sa.sa_flags = 0; sa.sa_handler = SIG_IGN; sigaction(SIGTTIN, &sa, (struct sigaction *)0); sigaction(SIGTTOU, &sa, (struct sigaction *)0); /* * Paranoia. */ close(0); close(1); close(2); if (kenv(KENV_GET, "init_script", kenv_value, sizeof(kenv_value)) > 0) { state_func_t next_transition; if ((next_transition = run_script(kenv_value)) != 0) initial_transition = (state_t) next_transition; } if (kenv(KENV_GET, "init_chroot", kenv_value, sizeof(kenv_value)) > 0) { if (chdir(kenv_value) != 0 || chroot(".") != 0) warning("Can't chroot to %s: %m", kenv_value); } /* * Additional check if devfs needs to be mounted: * If "/" and "/dev" have the same device number, * then it hasn't been mounted yet. */ if (!devfs) { struct stat stst; dev_t root_devno; stat("/", &stst); root_devno = stst.st_dev; if (stat("/dev", &stst) != 0) warning("Can't stat /dev: %m"); else if (stst.st_dev == root_devno) devfs++; } if (devfs) { struct iovec iov[4]; char *s; int i; char _fstype[] = "fstype"; char _devfs[] = "devfs"; char _fspath[] = "fspath"; char _path_dev[]= _PATH_DEV; iov[0].iov_base = _fstype; iov[0].iov_len = sizeof(_fstype); iov[1].iov_base = _devfs; iov[1].iov_len = sizeof(_devfs); iov[2].iov_base = _fspath; iov[2].iov_len = sizeof(_fspath); /* * Try to avoid the trailing slash in _PATH_DEV. * Be *very* defensive. */ s = strdup(_PATH_DEV); if (s != NULL) { i = strlen(s); if (i > 0 && s[i - 1] == '/') s[i - 1] = '\0'; iov[3].iov_base = s; iov[3].iov_len = strlen(s) + 1; } else { iov[3].iov_base = _path_dev; iov[3].iov_len = sizeof(_path_dev); } nmount(iov, 4, 0); if (s != NULL) free(s); } /* * Start the state machine. */ transition(initial_transition); /* * Should never reach here. */ return 1; }
int REVERBIT::init(double p[], int n_args) { float outskip = p[0]; float inskip = p[1]; float dur = p[2]; reverbtime = p[4]; reverbpct = p[5]; rtchan_delaytime = p[6]; cutoff = p[7]; dcblock = n_args > 8 ? (p[8] != 0.0) : true; // default is "yes" float ringdur = n_args > 9 ? p[9] : reverbtime + RVTSLOP; if (outputChannels() != 2) return die("REVERBIT", "Output must be stereo."); if (rtsetinput(inskip, this) == -1) return DONT_SCHEDULE; if (inputChannels() > 2) return die("REVERBIT", "Can't have more than 2 input channels."); if (rtsetoutput(outskip, dur + ringdur, this) == -1) return DONT_SCHEDULE; insamps = (int) (dur * SR); if (reverbtime <= 0.0) return die("REVERBIT", "Reverb time must be greater than 0."); if (reverbpct < 0.0 || reverbpct > 1.0) return die("REVERBIT", "Reverb percent must be between 0 and 1 inclusive."); if (rtchan_delaytime <= 0.0) return die("REVERBIT", "Right chan delay time must be greater than 0."); if (cutoff < 0.0) return die("REVERBIT", "Cutoff frequency should be positive (or zero to " "disable filter)."); usefilt = (cutoff > 0.0); if (usefilt) toneset(SR, cutoff, 1, tonedata); else rtcmix_advise("REVERBIT", "Low-pass filter disabled."); float maxdeltime = rtchan_delaytime; // If delay time is very short, make delay line longer than necessary. if (rtchan_delaytime < MIN_DELAY) maxdeltime *= DELAY_FACTOR; int delsamps = (int) (maxdeltime * SR + 0.5); delarray = new float[delsamps]; delset(SR, delarray, deltabs, maxdeltime); // Array dimensions taken from lib/rvbset.c (+ 2 extra for caution). int rvbsamps = (int)((0.1583 * SR) + 18 + 2); rvbarray = new float[rvbsamps]; rvbset(SR, reverbtime, 0, rvbarray); amparray = floc(1); if (amparray) { int amplen = fsize(1); tableset(SR, dur, amplen, amptabs); } prev_in[0] = prev_out[0] = 0.0; // for DC-blocker prev_in[1] = prev_out[1] = 0.0; return nSamps(); }