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deduplicate insert and delete logic in qr module

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This commit is contained in:
Yinan Zhang 2020-04-01 16:13:57 -07:00
parent c9d56cddf2
commit 1ad06aa53b
1 changed files with 8 additions and 22 deletions
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30
include/jemalloc/internal/qr.h
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@ -18,20 +18,6 @@ struct { \
#define qr_prev(a_qr, a_field) ((a_qr)->a_field.qre_prev)
#define qr_before_insert(a_qrelm, a_qr, a_field) do { \
(a_qr)->a_field.qre_prev = (a_qrelm)->a_field.qre_prev; \
(a_qr)->a_field.qre_next = (a_qrelm); \
(a_qr)->a_field.qre_prev->a_field.qre_next = (a_qr); \
(a_qrelm)->a_field.qre_prev = (a_qr); \
} while (0)
#define qr_after_insert(a_qrelm, a_qr, a_field) do { \
(a_qr)->a_field.qre_next = (a_qrelm)->a_field.qre_next; \
(a_qr)->a_field.qre_prev = (a_qrelm); \
(a_qr)->a_field.qre_next->a_field.qre_prev = (a_qr); \
(a_qrelm)->a_field.qre_next = (a_qr); \
} while (0)
/* a_qr_a can directly be a qr_next() macro, but a_qr_b cannot. */
#define qr_meld(a_qr_a, a_qr_b, a_field) do { \
(a_qr_b)->a_field.qre_prev->a_field.qre_next = \
@ -43,6 +29,12 @@ struct { \
(a_qr_b)->a_field.qre_prev->a_field.qre_next = (a_qr_b); \
} while (0)
#define qr_before_insert(a_qrelm, a_qr, a_field) \
qr_meld((a_qrelm), (a_qr), a_field)
#define qr_after_insert(a_qrelm, a_qr, a_field) \
qr_before_insert(qr_next(a_qrelm, a_field), (a_qr), a_field)
/*
* qr_meld() and qr_split() are functionally equivalent, so there's no need to
* have two copies of the code.
@ -50,14 +42,8 @@ struct { \
#define qr_split(a_qr_a, a_qr_b, a_field) \
qr_meld((a_qr_a), (a_qr_b), a_field)
#define qr_remove(a_qr, a_field) do { \
(a_qr)->a_field.qre_prev->a_field.qre_next \
= (a_qr)->a_field.qre_next; \
(a_qr)->a_field.qre_next->a_field.qre_prev \
= (a_qr)->a_field.qre_prev; \
(a_qr)->a_field.qre_next = (a_qr); \
(a_qr)->a_field.qre_prev = (a_qr); \
} while (0)
#define qr_remove(a_qr, a_field) \
qr_split(qr_next(a_qr, a_field), (a_qr), a_field)
#define qr_foreach(var, a_qr, a_field) \
for ((var) = (a_qr); \