BSD 4 development

[unix-history] / usr / src / sys / h / inline.h

/*      inline.h        4.1     11/9/80 */
/*
* Definitions of inlines for FASTVAX, and macro replacements
* for them if not FASTVAX (latter only scantily tested).
*/

#ifdef FASTVAX

#define plock(ip) \
{ \
       while ((ip)->i_flag & ILOCK) { \
               (ip)->i_flag |= IWANT; \
               sleep((caddr_t)(ip), PINOD); \
       } \
       (ip)->i_flag |= ILOCK; \
}

#define prele(ip) \
{ \
       (ip)->i_flag &= ~ILOCK; \
       if ((ip)->i_flag&IWANT) { \
               (ip)->i_flag &= ~IWANT; \
               wakeup((caddr_t)(ip)); \
       } \
}

#define GETF(fp, fd) { \
       if ((unsigned)(fd) >= NOFILE || ((fp) = u.u_ofile[fd]) == NULL) { \
               u.u_error = EBADF; \
               return; \
       } \
}

#define IUPDAT(ip, t1, t2, waitfor) { \
       if (ip->i_flag&(IUPD|IACC|ICHG)) \
               iupdat(ip, t1, t2, waitfor); \
}
#define ISSIG(p)        ((p)->p_sig && \
       ((p)->p_flag&STRC || ((p)->p_sig &~ (p)->p_ignsig)) && issig())
#else

#define GETF(fp, fd) { \
       (fp) = getf(fd); \
       if ((fp) == NULL) \
               return; \
}

#define IUPDAT(ip, t1, t2, waitfor)     iupdat(ip, t1, t2, waitfor)

#define ISSIG(p)        issig(p)
#endif