minix/lib/libc/sys/pipe.c

   1 #include <sys/cdefs.h>
   2 #include "namespace.h"
   3 #include <lib.h>
   4
   5 #include <string.h>
   6 #include <unistd.h>
   7
   8 #ifdef __weak_alias
   9 __weak_alias(pipe, _pipe)
  10 #endif
  11
  12 int
  13 pipe2(int fild[2], int flags)
  14 {
  15         message m;
  16
  17         memset(&m, 0, sizeof(m));
  18         m.m_lc_vfs_pipe2.flags = flags;
  19         m.m_lc_vfs_pipe2.oflags = flags;        /* backward compatibility */
  20
  21         if (_syscall(VFS_PROC_NR, VFS_PIPE2, &m) < 0) return(-1);
  22         fild[0] = m.m_vfs_lc_fdpair.fd0;
  23         fild[1] = m.m_vfs_lc_fdpair.fd1;
  24         return(0);
  25 }
  26
  27 int
  28 pipe(int fild[2])
  29 {
  30         return pipe2(fild, 0);
  31 }