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Annotation of 41BSD/sys/h/inline.h, revision 1.1.1.1

1.1       root        1: /*     inline.h        4.1     11/9/80 */
                      2: /*
                      3:  * Definitions of inlines for FASTVAX, and macro replacements
                      4:  * for them if not FASTVAX (latter only scantily tested).
                      5:  */
                      6: 
                      7: #ifdef FASTVAX
                      8: 
                      9: #define        plock(ip) \
                     10: { \
                     11:        while ((ip)->i_flag & ILOCK) { \
                     12:                (ip)->i_flag |= IWANT; \
                     13:                sleep((caddr_t)(ip), PINOD); \
                     14:        } \
                     15:        (ip)->i_flag |= ILOCK; \
                     16: }
                     17: 
                     18: #define        prele(ip) \
                     19: { \
                     20:        (ip)->i_flag &= ~ILOCK; \
                     21:        if ((ip)->i_flag&IWANT) { \
                     22:                (ip)->i_flag &= ~IWANT; \
                     23:                wakeup((caddr_t)(ip)); \
                     24:        } \
                     25: }
                     26: 
                     27: #define        GETF(fp, fd) { \
                     28:        if ((unsigned)(fd) >= NOFILE || ((fp) = u.u_ofile[fd]) == NULL) { \
                     29:                u.u_error = EBADF; \
                     30:                return; \
                     31:        } \
                     32: }
                     33: 
                     34: #define        IUPDAT(ip, t1, t2, waitfor) { \
                     35:        if (ip->i_flag&(IUPD|IACC|ICHG)) \
                     36:                iupdat(ip, t1, t2, waitfor); \
                     37: }
                     38: #define        ISSIG(p)        ((p)->p_sig && \
                     39:        ((p)->p_flag&STRC || ((p)->p_sig &~ (p)->p_ignsig)) && issig())
                     40: #else
                     41: 
                     42: #define        GETF(fp, fd) { \
                     43:        (fp) = getf(fd); \
                     44:        if ((fp) == NULL) \
                     45:                return; \
                     46: }
                     47: 
                     48: #define        IUPDAT(ip, t1, t2, waitfor)     iupdat(ip, t1, t2, waitfor)
                     49: 
                     50: #define        ISSIG(p)        issig(p)
                     51: #endif

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