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Annotation of coherent/f/usr/include/kernel/__pl.h, revision 1.1

1.1     ! root        1: #ifndef        __KERNEL___PL_H__
        !             2: #define        __KERNEL___PL_H__
        !             3: 
        !             4: /*
        !             5:  * This internal header file is intended as the sole point of definition for
        !             6:  * the internal data type "__pl_t" and associated enumeration constants, from
        !             7:  * which the System V DDI/DKI data type "pl_t" is derived.
        !             8:  *
        !             9:  * If the definitions of the constants below are changed or augmented, please
        !            10:  * ensure that the same changes are made elsewhere for the benefit of the
        !            11:  * assembly-language code which uses similar constants.
        !            12:  */
        !            13: 
        !            14: 
        !            15: /*
        !            16:  * Processor priorities under the System V DDI/DKI are specified abstractly
        !            17:  * via the following types and names. The abstract priorities defined below
        !            18:  * must conform to the following partial order:
        !            19:  *     plbase < pltimeout <= pldisk, plstr <= plhi
        !            20:  *
        !            21:  * The actual numeric values are system-dependent. The primitive numeric
        !            22:  * processor priorities from 0 (base) to 8 (totally disabled) to keep software
        !            23:  * independent of the machine-specific priority-manipulation data.
        !            24:  */
        !            25: 
        !            26: typedef enum {
        !            27:        invpl = -1,                     /* invalid processor priority */
        !            28:        plbase = 0,                     /* block no interrupts */
        !            29:        pltimeout = 1,                  /*
        !            30:                                         * block functions scheduled by
        !            31:                                         * itimeout and dtimeout
        !            32:                                         */
        !            33:        pldisk = 5,                     /* block disk device interrupts */
        !            34:        plstr = 5,                      /* block STREAMS interrupts */
        !            35:        plhi = 8                        /* block all interrupts */
        !            36: } __pl_t;
        !            37: 
        !            38: 
        !            39: #endif /* ! defined (__KERNEL___PL_H__) */

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