Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/pms/RefTisa/discovery/dm/dmlist.h
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1 /******************************************************************************* 2 ** 3 *Copyright (c) 2014 PMC-Sierra, Inc. All rights reserved. 4 * 5 *Redistribution and use in source and binary forms, with or without modification, are permitted provided 6 *that the following conditions are met: 7 *1. Redistributions of source code must retain the above copyright notice, this list of conditions and the 8 *following disclaimer. 9 *2. Redistributions in binary form must reproduce the above copyright notice, 10 *this list of conditions and the following disclaimer in the documentation and/or other materials provided 11 *with the distribution. 12 * 13 *THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED 14 *WARRANTIES,INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 15 *FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 16 *FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 17 *NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 18 *BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 19 *LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 20 *SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE 21 * 22 * $FreeBSD$ 23 * 24 ********************************************************************************/ 25 26 #ifndef __DMLIST_H__ 27 #define __DMLIST_H__ 28 29 typedef struct dmList_s dmList_t; 30 31 struct dmList_s { 32 dmList_t *flink; 33 dmList_t *blink; 34 }; 35 36 #define DMLIST_INIT_HDR(hdr) \ 37 do { \ 38 ((dmList_t *)(hdr))->flink = (dmList_t *)(hdr); \ 39 ((dmList_t *)(hdr))->blink = (dmList_t *)(hdr); \ 40 } while (0) 41 42 #define DMLIST_INIT_ELEMENT(hdr) \ 43 do { \ 44 ((dmList_t *)(hdr))->flink = (dmList_t *)agNULL; \ 45 ((dmList_t *)(hdr))->blink = (dmList_t *)agNULL; \ 46 } while (0) 47 48 #define DMLIST_ENQUEUE_AT_HEAD(toAddHdr,listHdr) \ 49 do { \ 50 ((dmList_t *)(toAddHdr))->flink = ((dmList_t *)(listHdr))->flink; \ 51 ((dmList_t *)(toAddHdr))->blink = (dmList_t *)(listHdr) ; \ 52 ((dmList_t *)(listHdr))->flink->blink = (dmList_t *)(toAddHdr); \ 53 ((dmList_t *)(listHdr))->flink = (dmList_t *)(toAddHdr); \ 54 } while (0) 55 56 #define DMLIST_ENQUEUE_AT_TAIL(toAddHdr,listHdr) \ 57 do { \ 58 ((dmList_t *)(toAddHdr))->flink = (dmList_t *)(listHdr); \ 59 ((dmList_t *)(toAddHdr))->blink = ((dmList_t *)(listHdr))->blink; \ 60 ((dmList_t *)(listHdr))->blink->flink = (dmList_t *)(toAddHdr); \ 61 ((dmList_t *)(listHdr))->blink = (dmList_t *)(toAddHdr); \ 62 } while (0) 63 64 #define DMLIST_EMPTY(listHdr) \ 65 (((dmList_t *)(listHdr))->flink == ((dmList_t *)(listHdr))) 66 67 #define DMLIST_NOT_EMPTY(listHdr) \ 68 (!DMLIST_EMPTY(listHdr)) 69 70 #define DMLIST_DEQUEUE_THIS(hdr) \ 71 do { \ 72 ((dmList_t *)(hdr))->blink->flink = ((dmList_t *)(hdr))->flink; \ 73 ((dmList_t *)(hdr))->flink->blink = ((dmList_t *)(hdr))->blink; \ 74 ((dmList_t *)(hdr))->flink = ((dmList_t *)(hdr))->blink = agNULL; \ 75 } while (0) 76 77 #define DMLIST_DEQUEUE_FROM_HEAD_FAST(atHeadHdr,listHdr) \ 78 do { \ 79 *((dmList_t **)(atHeadHdr)) = ((dmList_t *)(listHdr))->flink; \ 80 (*((dmList_t **)(atHeadHdr)))->flink->blink = (dmList_t *)(listHdr); \ 81 ((dmList_t *)(listHdr))->flink = (*(dmList_t **)(atHeadHdr))->flink; \ 82 } while (0) 83 84 #define DMLIST_DEQUEUE_FROM_HEAD(atHeadHdr,listHdr) \ 85 do { \ 86 if (DMLIST_NOT_EMPTY((listHdr))) \ 87 { \ 88 DMLIST_DEQUEUE_FROM_HEAD_FAST(atHeadHdr,listHdr); \ 89 } \ 90 else \ 91 { \ 92 (*((dmList_t **)(atHeadHdr))) = (dmList_t *)agNULL; \ 93 } \ 94 } while (0) 95 96 #define DMLIST_DEQUEUE_FROM_TAIL_FAST(atTailHdr,listHdr) \ 97 do { \ 98 (*((dmList_t **)(atTailHdr))) = ((dmList_t *)(listHdr))->blink; \ 99 (*((dmList_t **)(atTailHdr)))->blink->flink = (dmList_t *)(listHdr); \ 100 ((dmList_t *)(listHdr))->blink = (*((dmList_t **)(atTailHdr)))->blink; \ 101 } while (0) 102 103 #define DMLIST_DEQUEUE_FROM_TAIL(atTailHdr,listHdr) \ 104 do { \ 105 if (DMLIST_NOT_EMPTY((listHdr))) \ 106 { \ 107 DMLIST_DEQUEUE_FROM_TAIL_FAST(atTailHdr,listHdr); \ 108 } \ 109 else \ 110 { \ 111 (*((dmList_t **)(atTailHdr))) = (dmList_t *)agNULL; \ 112 } \ 113 } while (0) 114 115 #define DMLIST_ENQUEUE_LIST_AT_TAIL_FAST(toAddListHdr, listHdr) \ 116 do { \ 117 ((dmList_t *)toAddListHdr)->blink->flink = ((dmList_t *)listHdr); \ 118 ((dmList_t *)toAddListHdr)->flink->blink = ((dmList_t *)listHdr)->blink; \ 119 ((dmList_t *)listHdr)->blink->flink = ((dmList_t *)toAddListHdr)->flink; \ 120 ((dmList_t *)listHdr)->blink = ((dmList_t *)toAddListHdr)->blink; \ 121 DMLIST_INIT_HDR(toAddListHdr); \ 122 } while (0) 123 124 #define DMLIST_ENQUEUE_LIST_AT_TAIL(toAddListHdr, listHdr) \ 125 do { \ 126 if (DMLIST_NOT_EMPTY(toAddListHdr)) \ 127 { \ 128 DMLIST_ENQUEUE_LIST_AT_TAIL_FAST(toAddListHdr, listHdr); \ 129 } \ 130 } while (0) 131 132 #define DMLIST_ENQUEUE_LIST_AT_HEAD_FAST(toAddListHdr, listHdr) \ 133 do { \ 134 ((dmList_t *)toAddListHdr)->blink->flink = ((dmList_t *)listHdr)->flink; \ 135 ((dmList_t *)toAddListHdr)->flink->blink = ((dmList_t *)listHdr); \ 136 ((dmList_t *)listHdr)->flink->blink = ((dmList_t *)toAddListHdr)->blink; \ 137 ((dmList_t *)listHdr)->flink = ((dmList_t *)toAddListHdr)->flink; \ 138 DMLIST_INIT_HDR(toAddListHdr); \ 139 } while (0) 140 141 #define DMLIST_ENQUEUE_LIST_AT_HEAD(toAddListHdr, listHdr) \ 142 do { \ 143 if (DMLIST_NOT_EMPTY(toAddListHdr)) \ 144 { \ 145 DMLIST_ENQUEUE_LIST_AT_HEAD_FAST(toAddListHdr, listHdr); \ 146 } \ 147 } while (0) 148 149 #define TD_FIELD_OFFSET(baseType,fieldName) \ 150 ((bit32)((bitptr)(&(((baseType *)0)->fieldName)))) 151 152 #define DMLIST_OBJECT_BASE(baseType,fieldName,fieldPtr) \ 153 (void *)fieldPtr == (void *)0 ? (baseType *)0 : \ 154 ((baseType *)((bit8 *)(fieldPtr) - ((bitptr)(&(((baseType *)0)->fieldName))))) 155 156 157 158 159 #endif /* __DMLIST_H__ */ 160 161
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