2.9BSD - /usr/src/sys/stand/c.c

   1: #include <sys/param.h>
   2: #include <sys/inode.h>
   3: #include <saio.h>
   4: 
   5: devread(io)
   6: register struct iob *io;
   7: {
   8: 
   9:     return( (*devsw[io->i_ino.i_dev].dv_strategy)(io,READ) );
  10: }
  11: 
  12: devwrite(io)
  13: register struct iob *io;
  14: {
  15:     return( (*devsw[io->i_ino.i_dev].dv_strategy)(io, WRITE) );
  16: }
  17: 
  18: devopen(io)
  19: register struct iob *io;
  20: {
  21:     (*devsw[io->i_ino.i_dev].dv_open)(io);
  22: }
  23: 
  24: devclose(io)
  25: register struct iob *io;
  26: {
  27:     (*devsw[io->i_ino.i_dev].dv_close)(io);
  28: }
  29: 
  30: nullsys()
  31: { ; }
  32: 
  33: int xpstrategy();
  34: int rpstrategy();
  35: int rkstrategy();
  36: int hkstrategy();
  37: int rlstrategy();
  38: int nullsys();
  39: int tmstrategy(), tmrew(), tmopen();
  40: int htstrategy(), htopen(), htclose();
  41: int tsstrategy(), tsopen(), tsclose();
  42: struct devsw devsw[] {
  43:     "xp",   xpstrategy, nullsys,    nullsys,
  44:     "rp",   rpstrategy, nullsys,    nullsys,
  45:     /* "hp" and "rm" are synonyms for "xp" */
  46:     "hp",   xpstrategy, nullsys,    nullsys,
  47:     "rm",   xpstrategy, nullsys,    nullsys,
  48:     "rk",   rkstrategy, nullsys,    nullsys,
  49:     "hk",   hkstrategy, nullsys,    nullsys,
  50:     "rl",   rlstrategy, nullsys,    nullsys,
  51:     "tm",   tmstrategy, tmopen,     tmrew,
  52:     "ht",   htstrategy, htopen,     htclose,
  53:     "ts",   tsstrategy, tsopen,     tsclose,
  54:     0,0,0,0
  55: };

Defined functions

Defined variables