示例#1
0
int bu_scan (char const *s, unsigned int len, uint32 *x, unsigned int xn, unsigned int zeron)
{
  register unsigned int n = bitarray_div8(zeron) ;
  if (xn < n) return (errno = EOVERFLOW, 0) ;
  bu_scan_internal(s, len, x) ;
  bu_zero(x + n, xn - n) ;
  return 1 ;
}
示例#2
0
static inline int got (s6_svlisten_t const *foo, int wantup, int wantready, int or)
{
  register unsigned int m = bitarray_div8(foo->n) ;
  unsigned char t[m] ;
  byte_copy(t, m, foo->upstate) ;
  if (!wantup) bitarray_not(t, 0, foo->n) ;
  if (wantready) bitarray_and(t, t, foo->readystate, foo->n) ;
  return (bitarray_first(t, foo->n, or) < foo->n) == or ;
}
示例#3
0
unsigned int bitarray_firstclear (register unsigned char const *s, unsigned int max)
{
  unsigned int n = bitarray_div8(max) ;
  register unsigned int i = 0 ;
  for (; i < n ; i++) if (s[i] != 0xffU) break ;
  if (i == n) return max ;
  i <<= 3 ;
  while ((i < max) && bitarray_peek(s, i)) i++ ;
  return i ;
}
示例#4
0
void s6rc_graph_closure (s6rc_db_t const *db, unsigned char *bits, unsigned int bitno, int h)
{
  unsigned int n = db->nshort + db->nlong ;
  unsigned int m = bitarray_div8(n) ;
  unsigned char mark[m] ;
  recinfo_t info = { .db = db, .n = n, .bits = bits, .mark = mark, .mask = 1 << (bitno & 7), .h = !!h } ;
  register unsigned int i = n ;
  byte_zero(mark, m) ;
  while (i--)
    if (bits[i] & info.mask) s6rc_graph_closure_rec(&info, i) ;
}
示例#5
0
unsigned int bitarray_firstclear_skip (register unsigned char const *s, unsigned int max, unsigned int skip)
{
  register unsigned int i = bitarray_div8(skip) ;
  register unsigned int j = i << 3 > max ? max : i << 3 ;
  if (i && s[i-1] != 0xffU)
  {
    while ((skip < j) && bitarray_peek(s, skip)) skip++ ;
    if (skip < j) return skip ;
  }
  return j + bitarray_firstclear(s + i, max - j) ;
}
示例#6
0
文件： s6-svlisten.c 项目： 8l/s6 
int main (int argc, char const **argv, char const *const *envp)
{
  tain_t deadline, tto ;
  int spfd ;
  int argc1 ;
  int or = 0 ;
  int wantup = 1, wantready = 0, wantrestart = 0 ;
  PROG = "s6-svlisten" ;
  {
    subgetopt_t l = SUBGETOPT_ZERO ;
    unsigned int t = 0 ;
    for (;;)
    {
      register int opt = subgetopt_r(argc, argv, "uUdDrRaot:", &l) ;
      if (opt == -1) break ;
      switch (opt)
      {
        case 'u' : wantup = 1 ; wantready = 0 ; break ;
        case 'U' : wantup = 1 ; wantready = 1 ; break ;
        case 'd' : wantup = 0 ; wantready = 0 ; break ;
        case 'D' : wantup = 0 ; wantready = 1 ; break ;
        case 'r' : wantrestart = 1 ; wantready = 0 ; break ;
        case 'R' : wantrestart = 1 ; wantready = 1 ; break ;
        case 'a' : or = 0 ; break ;
        case 'o' : or = 1 ; break ;
        case 't' : if (!uint0_scan(l.arg, &t)) dieusage() ; break ;
        default : dieusage() ;
      }
    }
    argc -= l.ind ; argv += l.ind ;
    if (t) tain_from_millisecs(&tto, t) ; else tto = tain_infinite_relative ;
  }
  if (argc < 3) dieusage() ;

  argc1 = el_semicolon(argv) ;
  if (!argc1 || argc == argc1 + 1) dieusage() ;
  if (argc1 >= argc) strerr_dief1x(100, "unterminated servicedir block") ;
  if (wantrestart && or)
  {
    or = 0 ;
    strerr_warnw3x("-o is unsupported when combined with -", wantready ? "R" : "r", "- using -a instead") ;
  }

  tain_now_g() ;
  tain_add_g(&deadline, &tto) ;
  spfd = s6_svlisten_selfpipe_init() ;

  {
    s6_svlisten_t foo = S6_SVLISTEN_ZERO ;
    pid_t pid ;
    uint16 ids[argc1] ;
    unsigned char upstate[bitarray_div8(argc1)] ;
    unsigned char readystate[bitarray_div8(argc1)] ;
    s6_svlisten_init(argc1, argv, &foo, ids, upstate, readystate, &deadline) ;
    pid = child_spawn0(argv[argc1 + 1], argv + argc1 + 1, envp) ;
    if (!pid) strerr_diefu2sys(111, "spawn ", argv[argc1 + 1]) ;
    if (wantrestart)
    {
      argc1 = s6_svlisten_loop(&foo, 0, 1, or, &deadline, spfd, &s6_svlisten_signal_handler) ;
      if (argc1) return argc1 ;
      wantup = 1 ;
    }
    return s6_svlisten_loop(&foo, wantup, wantready, or, &deadline, spfd, &s6_svlisten_signal_handler) ;
  }
}
示例#7
0
/* ISC license. */

#include <skalibs/bitarray.h>
#include <skalibs/unixmessage.h>

static unsigned char _unixmessage_bits_closeall[bitarray_div8(UNIXMESSAGE_MAXFDS)] = "\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377" ;
unsigned char const *const unixmessage_bits_closeall = _unixmessage_bits_closeall ;
示例#8
0
void bitarray_or (unsigned char *c, unsigned char const *a, unsigned char const *b, unsigned int n)
{
  unsigned int len = bitarray_div8(n) ;
  register unsigned int i = 0 ;
  for (; i < len ; i++) c[i] = a[i] | b[i] ;
}