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Annotation of 41BSD/4.0.upgrade/sys/h/inline.h, revision 1.1

1.1     ! root        1: /*     inline.h        4.3     81/02/26        */
        !             2: /*
        !             3:  * Definitions of inlines, and macro replacements
        !             4:  * for them if UNFAST (latter only scantily tested).
        !             5:  */
        !             6: 
        !             7: #ifndef UNFAST
        !             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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