2.9BSD - /usr/include/sys/inline.h

   1: /*
   2:  * Definitions of inline expansions used for speed,
   3:  * and replacements for them if UNFAST is defined.
   4:  */
   5: 
   6: #ifndef UNFAST
   7: 
   8: #define plock(ip) \
   9: { \
  10:     while ((ip)->i_flag & ILOCK) { \
  11:         (ip)->i_flag |= IWANT; \
  12:         sleep((caddr_t)(ip), PINOD); \
  13:     } \
  14:     (ip)->i_flag |= ILOCK; \
  15: }
  16: 
  17: #define prele(ip) \
  18: { \
  19:     (ip)->i_flag &= ~ILOCK; \
  20:     if ((ip)->i_flag&IWANT) { \
  21:         (ip)->i_flag &= ~IWANT; \
  22:         wakeup((caddr_t)(ip)); \
  23:     } \
  24: }
  25: 
  26: /*
  27:  * The GETF macro is used in a conditional, e.g.
  28:  *	if (GETF(fp,fd)) {
  29:  *		u.u_error = EBADF;
  30:  *		return;
  31:  *	}
  32:  */
  33: #define GETF(fp, fd) \
  34:     ((unsigned)(fd) >= NOFILE || ((fp) = u.u_ofile[fd]) == NULL)
  35: 
  36: #ifdef  UCB_FSFIX
  37: #define IUPDAT(ip, t1, t2, waitfor) { \
  38:     if (ip->i_flag&(IUPD|IACC|ICHG)) \
  39:         iupdat(ip, t1, t2, waitfor); \
  40: }
  41: #else
  42: #define IUPDAT(ip, t1, t2) { \
  43:     if (ip->i_flag&(IUPD|IACC|ICHG)) \
  44:         iupdat(ip, t1, t2); \
  45: }
  46: #endif	UCB_FSFIX
  47: 
  48: #ifndef MENLO_JCL
  49: #define ISSIG(p)    ((p)->p_sig && issig())
  50: #endif	MENLO_JCL
  51: 
  52: #else   UNFAST
  53: 
  54: #ifdef  UCB_FSFIX
  55: #define IUPDAT(ip, t1, t2, waitfor) iupdat(ip, t1, t2, waitfor)
  56: #else
  57: #define IUPDAT(ip, t1, t2)  iupdat(ip, t1, t2)
  58: #endif	UCB_FSFIX
  59: 
  60: #ifndef MENLO_JCL
  61: #define ISSIG(p)    issig(p)
  62: #endif
  63: 
  64: #endif	UNFAST
  65: 
  66: /*
  67:  *  Other macros that are always used, or replace null routines.
  68:  */
  69: 
  70: #ifdef  MENLO_JCL
  71: #define ISSIG(p)    ((p)->p_sig && \
  72:     ((p)->p_flag&STRC || ((p)->p_sig & ~(p)->p_ignsig)) && issig())
  73: #endif
  74: 
  75: #ifndef INTRLVE
  76: #define dkblock(bp) ((bp)->b_blkno)
  77: #define dkunit(bp)  ((minor((bp)->b_dev) >> 3) & 07)
  78: #endif	INTRLVE

Defined macros

Usage of this include