From a7283ab143d4e95e8f5f22b58c61cb4e2f604749 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 23 Jul 2021 13:29:01 +0200 Subject: Merging upstream version 0.7.1 (Closes: #991419). Signed-off-by: Daniel Baumann --- include/ck_queue.h | 230 ++++++++++++++++++++++++++++------------------------- 1 file changed, 120 insertions(+), 110 deletions(-) (limited to 'include/ck_queue.h') diff --git a/include/ck_queue.h b/include/ck_queue.h index c1e9872..fd38d8a 100644 --- a/include/ck_queue.h +++ b/include/ck_queue.h @@ -125,7 +125,7 @@ */ #define CK_SLIST_HEAD(name, type) \ struct name { \ - struct type *slh_first; /* first element */ \ + struct type *cslh_first; /* first element */ \ } #define CK_SLIST_HEAD_INITIALIZER(head) \ @@ -133,85 +133,95 @@ struct name { \ #define CK_SLIST_ENTRY(type) \ struct { \ - struct type *sle_next; /* next element */ \ + struct type *csle_next; /* next element */ \ } /* * Singly-linked List functions. */ #define CK_SLIST_EMPTY(head) \ - (ck_pr_load_ptr(&(head)->slh_first) == NULL) + (ck_pr_load_ptr(&(head)->cslh_first) == NULL) #define CK_SLIST_FIRST(head) \ - (ck_pr_load_ptr(&(head)->slh_first)) + (ck_pr_load_ptr(&(head)->cslh_first)) #define CK_SLIST_NEXT(elm, field) \ - ck_pr_load_ptr(&((elm)->field.sle_next)) + ck_pr_load_ptr(&((elm)->field.csle_next)) #define CK_SLIST_FOREACH(var, head, field) \ for ((var) = CK_SLIST_FIRST((head)); \ - (var) && (ck_pr_fence_load(), 1); \ + (var); \ (var) = CK_SLIST_NEXT((var), field)) -#define CK_SLIST_FOREACH_SAFE(var, head, field, tvar) \ - for ((var) = CK_SLIST_FIRST(head); \ - (var) && (ck_pr_fence_load(), (tvar) = CK_SLIST_NEXT(var, field), 1);\ +#define CK_SLIST_FOREACH_SAFE(var, head, field, tvar) \ + for ((var) = CK_SLIST_FIRST(head); \ + (var) && ((tvar) = CK_SLIST_NEXT(var, field), 1); \ (var) = (tvar)) #define CK_SLIST_FOREACH_PREVPTR(var, varp, head, field) \ - for ((varp) = &(head)->slh_first; \ - ((var) = ck_pr_load_ptr(varp)) != NULL && (ck_pr_fence_load(), 1); \ - (varp) = &(var)->field.sle_next) + for ((varp) = &(head)->cslh_first; \ + ((var) = ck_pr_load_ptr(varp)) != NULL; \ + (varp) = &(var)->field.csle_next) #define CK_SLIST_INIT(head) do { \ - ck_pr_store_ptr(&(head)->slh_first, NULL); \ + ck_pr_store_ptr(&(head)->cslh_first, NULL); \ ck_pr_fence_store(); \ } while (0) #define CK_SLIST_INSERT_AFTER(a, b, field) do { \ - (b)->field.sle_next = (a)->field.sle_next; \ + (b)->field.csle_next = (a)->field.csle_next; \ ck_pr_fence_store(); \ - ck_pr_store_ptr(&(a)->field.sle_next, b); \ + ck_pr_store_ptr(&(a)->field.csle_next, b); \ } while (0) #define CK_SLIST_INSERT_HEAD(head, elm, field) do { \ - (elm)->field.sle_next = (head)->slh_first; \ + (elm)->field.csle_next = (head)->cslh_first; \ ck_pr_fence_store(); \ - ck_pr_store_ptr(&(head)->slh_first, elm); \ + ck_pr_store_ptr(&(head)->cslh_first, elm); \ +} while (0) + +#define CK_SLIST_INSERT_PREVPTR(prevp, slistelm, elm, field) do { \ + (elm)->field.csle_next = (slistelm); \ + ck_pr_fence_store(); \ + ck_pr_store_ptr(prevp, elm); \ } while (0) #define CK_SLIST_REMOVE_AFTER(elm, field) do { \ - ck_pr_store_ptr(&(elm)->field.sle_next, \ - (elm)->field.sle_next->field.sle_next); \ + ck_pr_store_ptr(&(elm)->field.csle_next, \ + (elm)->field.csle_next->field.csle_next); \ } while (0) #define CK_SLIST_REMOVE(head, elm, type, field) do { \ - if ((head)->slh_first == (elm)) { \ + if ((head)->cslh_first == (elm)) { \ CK_SLIST_REMOVE_HEAD((head), field); \ } else { \ - struct type *curelm = (head)->slh_first; \ - while (curelm->field.sle_next != (elm)) \ - curelm = curelm->field.sle_next; \ + struct type *curelm = (head)->cslh_first; \ + while (curelm->field.csle_next != (elm)) \ + curelm = curelm->field.csle_next; \ CK_SLIST_REMOVE_AFTER(curelm, field); \ } \ } while (0) #define CK_SLIST_REMOVE_HEAD(head, field) do { \ - ck_pr_store_ptr(&(head)->slh_first, \ - (head)->slh_first->field.sle_next); \ + ck_pr_store_ptr(&(head)->cslh_first, \ + (head)->cslh_first->field.csle_next); \ +} while (0) + +#define CK_SLIST_REMOVE_PREVPTR(prevp, elm, field) do { \ + ck_pr_store_ptr(prevptr, (elm)->field.csle_next); \ } while (0) #define CK_SLIST_MOVE(head1, head2, field) do { \ - ck_pr_store_ptr(&(head1)->slh_first, (head2)->slh_first); \ + ck_pr_store_ptr(&(head1)->cslh_first, (head2)->cslh_first); \ } while (0) /* * This operation is not applied atomically. */ #define CK_SLIST_SWAP(a, b, type) do { \ - struct type *swap_first = (a)->slh_first; \ - (a)->slh_first = (b)->slh_first; \ - (b)->slh_first = swap_first; \ + struct type *swap_first = (a)->cslh_first; \ + (a)->cslh_first = (b)->cslh_first; \ + (b)->cslh_first = swap_first; \ } while (0) /* @@ -219,107 +229,107 @@ struct { \ */ #define CK_STAILQ_HEAD(name, type) \ struct name { \ - struct type *stqh_first;/* first element */ \ - struct type **stqh_last;/* addr of last next element */ \ + struct type *cstqh_first;/* first element */ \ + struct type **cstqh_last;/* addr of last next element */ \ } #define CK_STAILQ_HEAD_INITIALIZER(head) \ - { NULL, &(head).stqh_first } + { NULL, &(head).cstqh_first } #define CK_STAILQ_ENTRY(type) \ struct { \ - struct type *stqe_next; /* next element */ \ + struct type *cstqe_next; /* next element */ \ } /* * Singly-linked Tail queue functions. */ #define CK_STAILQ_CONCAT(head1, head2) do { \ - if ((head2)->stqh_first == NULL) { \ - ck_pr_store_ptr((head1)->stqh_last, (head2)->stqh_first); \ + if ((head2)->cstqh_first != NULL) { \ + ck_pr_store_ptr((head1)->cstqh_last, (head2)->cstqh_first); \ ck_pr_fence_store(); \ - (head1)->stqh_last = (head2)->stqh_last; \ + (head1)->cstqh_last = (head2)->cstqh_last; \ CK_STAILQ_INIT((head2)); \ } \ } while (0) -#define CK_STAILQ_EMPTY(head) (ck_pr_load_ptr(&(head)->stqh_first) == NULL) +#define CK_STAILQ_EMPTY(head) (ck_pr_load_ptr(&(head)->cstqh_first) == NULL) -#define CK_STAILQ_FIRST(head) (ck_pr_load_ptr(&(head)->stqh_first)) +#define CK_STAILQ_FIRST(head) (ck_pr_load_ptr(&(head)->cstqh_first)) #define CK_STAILQ_FOREACH(var, head, field) \ for((var) = CK_STAILQ_FIRST((head)); \ - (var) && (ck_pr_fence_load(), 1); \ + (var); \ (var) = CK_STAILQ_NEXT((var), field)) #define CK_STAILQ_FOREACH_SAFE(var, head, field, tvar) \ for ((var) = CK_STAILQ_FIRST((head)); \ - (var) && (ck_pr_fence_load(), (tvar) = \ + (var) && ((tvar) = \ CK_STAILQ_NEXT((var), field), 1); \ (var) = (tvar)) #define CK_STAILQ_INIT(head) do { \ - ck_pr_store_ptr(&(head)->stqh_first, NULL); \ + ck_pr_store_ptr(&(head)->cstqh_first, NULL); \ ck_pr_fence_store(); \ - (head)->stqh_last = &(head)->stqh_first; \ + (head)->cstqh_last = &(head)->cstqh_first; \ } while (0) #define CK_STAILQ_INSERT_AFTER(head, tqelm, elm, field) do { \ - (elm)->field.stqe_next = (tqelm)->field.stqe_next; \ + (elm)->field.cstqe_next = (tqelm)->field.cstqe_next; \ ck_pr_fence_store(); \ - ck_pr_store_ptr(&(tqelm)->field.stqe_next, elm); \ - if ((elm)->field.stqe_next == NULL) \ - (head)->stqh_last = &(elm)->field.stqe_next; \ + ck_pr_store_ptr(&(tqelm)->field.cstqe_next, elm); \ + if ((elm)->field.cstqe_next == NULL) \ + (head)->cstqh_last = &(elm)->field.cstqe_next; \ } while (0) #define CK_STAILQ_INSERT_HEAD(head, elm, field) do { \ - (elm)->field.stqe_next = (head)->stqh_first; \ + (elm)->field.cstqe_next = (head)->cstqh_first; \ ck_pr_fence_store(); \ - ck_pr_store_ptr(&(head)->stqh_first, elm); \ - if ((elm)->field.stqe_next == NULL) \ - (head)->stqh_last = &(elm)->field.stqe_next; \ + ck_pr_store_ptr(&(head)->cstqh_first, elm); \ + if ((elm)->field.cstqe_next == NULL) \ + (head)->cstqh_last = &(elm)->field.cstqe_next; \ } while (0) #define CK_STAILQ_INSERT_TAIL(head, elm, field) do { \ - (elm)->field.stqe_next = NULL; \ + (elm)->field.cstqe_next = NULL; \ ck_pr_fence_store(); \ - ck_pr_store_ptr((head)->stqh_last, (elm)); \ - (head)->stqh_last = &(elm)->field.stqe_next; \ + ck_pr_store_ptr((head)->cstqh_last, (elm)); \ + (head)->cstqh_last = &(elm)->field.cstqe_next; \ } while (0) #define CK_STAILQ_NEXT(elm, field) \ - (ck_pr_load_ptr(&(elm)->field.stqe_next)) + (ck_pr_load_ptr(&(elm)->field.cstqe_next)) #define CK_STAILQ_REMOVE(head, elm, type, field) do { \ - if ((head)->stqh_first == (elm)) { \ + if ((head)->cstqh_first == (elm)) { \ CK_STAILQ_REMOVE_HEAD((head), field); \ } else { \ - struct type *curelm = (head)->stqh_first; \ - while (curelm->field.stqe_next != (elm)) \ - curelm = curelm->field.stqe_next; \ + struct type *curelm = (head)->cstqh_first; \ + while (curelm->field.cstqe_next != (elm)) \ + curelm = curelm->field.cstqe_next; \ CK_STAILQ_REMOVE_AFTER(head, curelm, field); \ } \ } while (0) #define CK_STAILQ_REMOVE_AFTER(head, elm, field) do { \ - ck_pr_store_ptr(&(elm)->field.stqe_next, \ - (elm)->field.stqe_next->field.stqe_next); \ - if ((elm)->field.stqe_next == NULL) \ - (head)->stqh_last = &(elm)->field.stqe_next; \ + ck_pr_store_ptr(&(elm)->field.cstqe_next, \ + (elm)->field.cstqe_next->field.cstqe_next); \ + if ((elm)->field.cstqe_next == NULL) \ + (head)->cstqh_last = &(elm)->field.cstqe_next; \ } while (0) #define CK_STAILQ_REMOVE_HEAD(head, field) do { \ - ck_pr_store_ptr(&(head)->stqh_first, \ - (head)->stqh_first->field.stqe_next); \ - if ((head)->stqh_first == NULL) \ - (head)->stqh_last = &(head)->stqh_first; \ + ck_pr_store_ptr(&(head)->cstqh_first, \ + (head)->cstqh_first->field.cstqe_next); \ + if ((head)->cstqh_first == NULL) \ + (head)->cstqh_last = &(head)->cstqh_first; \ } while (0) #define CK_STAILQ_MOVE(head1, head2, field) do { \ - ck_pr_store_ptr(&(head1)->stqh_first, (head2)->stqh_first); \ - (head1)->stqh_last = (head2)->stqh_last; \ - if ((head2)->stqh_last == &(head2)->stqh_first) \ - (head1)->stqh_last = &(head1)->stqh_first; \ + ck_pr_store_ptr(&(head1)->cstqh_first, (head2)->cstqh_first); \ + (head1)->cstqh_last = (head2)->cstqh_last; \ + if ((head2)->cstqh_last == &(head2)->cstqh_first) \ + (head1)->cstqh_last = &(head1)->cstqh_first; \ } while (0) /* @@ -327,15 +337,15 @@ struct { \ */ #define CK_STAILQ_SWAP(head1, head2, type) do { \ struct type *swap_first = CK_STAILQ_FIRST(head1); \ - struct type **swap_last = (head1)->stqh_last; \ + struct type **swap_last = (head1)->cstqh_last; \ CK_STAILQ_FIRST(head1) = CK_STAILQ_FIRST(head2); \ - (head1)->stqh_last = (head2)->stqh_last; \ + (head1)->cstqh_last = (head2)->cstqh_last; \ CK_STAILQ_FIRST(head2) = swap_first; \ - (head2)->stqh_last = swap_last; \ + (head2)->cstqh_last = swap_last; \ if (CK_STAILQ_EMPTY(head1)) \ - (head1)->stqh_last = &(head1)->stqh_first; \ + (head1)->cstqh_last = &(head1)->cstqh_first; \ if (CK_STAILQ_EMPTY(head2)) \ - (head2)->stqh_last = &(head2)->stqh_first; \ + (head2)->cstqh_last = &(head2)->cstqh_first; \ } while (0) /* @@ -343,7 +353,7 @@ struct { \ */ #define CK_LIST_HEAD(name, type) \ struct name { \ - struct type *lh_first; /* first element */ \ + struct type *clh_first; /* first element */ \ } #define CK_LIST_HEAD_INITIALIZER(head) \ @@ -351,78 +361,78 @@ struct name { \ #define CK_LIST_ENTRY(type) \ struct { \ - struct type *le_next; /* next element */ \ - struct type **le_prev; /* address of previous next element */ \ + struct type *cle_next; /* next element */ \ + struct type **cle_prev; /* address of previous next element */ \ } -#define CK_LIST_FIRST(head) ck_pr_load_ptr(&(head)->lh_first) +#define CK_LIST_FIRST(head) ck_pr_load_ptr(&(head)->clh_first) #define CK_LIST_EMPTY(head) (CK_LIST_FIRST(head) == NULL) -#define CK_LIST_NEXT(elm, field) ck_pr_load_ptr(&(elm)->field.le_next) +#define CK_LIST_NEXT(elm, field) ck_pr_load_ptr(&(elm)->field.cle_next) #define CK_LIST_FOREACH(var, head, field) \ for ((var) = CK_LIST_FIRST((head)); \ - (var) && (ck_pr_fence_load(), 1); \ + (var); \ (var) = CK_LIST_NEXT((var), field)) #define CK_LIST_FOREACH_SAFE(var, head, field, tvar) \ for ((var) = CK_LIST_FIRST((head)); \ - (var) && (ck_pr_fence_load(), (tvar) = CK_LIST_NEXT((var), field), 1);\ + (var) && ((tvar) = CK_LIST_NEXT((var), field), 1); \ (var) = (tvar)) #define CK_LIST_INIT(head) do { \ - ck_pr_store_ptr(&(head)->lh_first, NULL); \ + ck_pr_store_ptr(&(head)->clh_first, NULL); \ ck_pr_fence_store(); \ } while (0) #define CK_LIST_INSERT_AFTER(listelm, elm, field) do { \ - (elm)->field.le_next = (listelm)->field.le_next; \ - (elm)->field.le_prev = &(listelm)->field.le_next; \ + (elm)->field.cle_next = (listelm)->field.cle_next; \ + (elm)->field.cle_prev = &(listelm)->field.cle_next; \ ck_pr_fence_store(); \ - if ((listelm)->field.le_next != NULL) \ - (listelm)->field.le_next->field.le_prev = &(elm)->field.le_next;\ - ck_pr_store_ptr(&(listelm)->field.le_next, elm); \ + if ((listelm)->field.cle_next != NULL) \ + (listelm)->field.cle_next->field.cle_prev = &(elm)->field.cle_next;\ + ck_pr_store_ptr(&(listelm)->field.cle_next, elm); \ } while (0) #define CK_LIST_INSERT_BEFORE(listelm, elm, field) do { \ - (elm)->field.le_prev = (listelm)->field.le_prev; \ - (elm)->field.le_next = (listelm); \ + (elm)->field.cle_prev = (listelm)->field.cle_prev; \ + (elm)->field.cle_next = (listelm); \ ck_pr_fence_store(); \ - ck_pr_store_ptr((listelm)->field.le_prev, (elm)); \ - (listelm)->field.le_prev = &(elm)->field.le_next; \ + ck_pr_store_ptr((listelm)->field.cle_prev, (elm)); \ + (listelm)->field.cle_prev = &(elm)->field.cle_next; \ } while (0) #define CK_LIST_INSERT_HEAD(head, elm, field) do { \ - (elm)->field.le_next = (head)->lh_first; \ + (elm)->field.cle_next = (head)->clh_first; \ ck_pr_fence_store(); \ - if ((elm)->field.le_next != NULL) \ - (head)->lh_first->field.le_prev = &(elm)->field.le_next; \ - ck_pr_store_ptr(&(head)->lh_first, elm); \ - (elm)->field.le_prev = &(head)->lh_first; \ + if ((elm)->field.cle_next != NULL) \ + (head)->clh_first->field.cle_prev = &(elm)->field.cle_next; \ + ck_pr_store_ptr(&(head)->clh_first, elm); \ + (elm)->field.cle_prev = &(head)->clh_first; \ } while (0) #define CK_LIST_REMOVE(elm, field) do { \ - ck_pr_store_ptr((elm)->field.le_prev, (elm)->field.le_next); \ - if ((elm)->field.le_next != NULL) \ - (elm)->field.le_next->field.le_prev = (elm)->field.le_prev; \ + ck_pr_store_ptr((elm)->field.cle_prev, (elm)->field.cle_next); \ + if ((elm)->field.cle_next != NULL) \ + (elm)->field.cle_next->field.cle_prev = (elm)->field.cle_prev; \ } while (0) #define CK_LIST_MOVE(head1, head2, field) do { \ - ck_pr_store_ptr(&(head1)->lh_first, (head2)->lh_first); \ - if ((head1)->lh_first != NULL) \ - (head1)->lh_first->field.le_prev = &(head1)->lh_first; \ + ck_pr_store_ptr(&(head1)->clh_first, (head2)->clh_first); \ + if ((head1)->clh_first != NULL) \ + (head1)->clh_first->field.cle_prev = &(head1)->clh_first; \ } while (0) /* * This operation is not applied atomically. */ #define CK_LIST_SWAP(head1, head2, type, field) do { \ - struct type *swap_tmp = (head1)->lh_first; \ - (head1)->lh_first = (head2)->lh_first; \ - (head2)->lh_first = swap_tmp; \ - if ((swap_tmp = (head1)->lh_first) != NULL) \ - swap_tmp->field.le_prev = &(head1)->lh_first; \ - if ((swap_tmp = (head2)->lh_first) != NULL) \ - swap_tmp->field.le_prev = &(head2)->lh_first; \ + struct type *swap_tmp = (head1)->clh_first; \ + (head1)->clh_first = (head2)->clh_first; \ + (head2)->clh_first = swap_tmp; \ + if ((swap_tmp = (head1)->clh_first) != NULL) \ + swap_tmp->field.cle_prev = &(head1)->clh_first; \ + if ((swap_tmp = (head2)->clh_first) != NULL) \ + swap_tmp->field.cle_prev = &(head2)->clh_first; \ } while (0) #endif /* CK_QUEUE_H */ -- cgit v1.2.3