pcloudcc-lneely/pclsync/plist.h

158 lines
6.1 KiB
C

/*
Copyright (c) 2013 Anton Titov.
Copyright (c) 2013 pCloud Ltd. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met: Redistributions of source code must retain the above
copyright notice, this list of conditions and the following
disclaimer. Redistributions in binary form must reproduce the
above copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution. Neither the name of pCloud Ltd nor the
names of its contributors may be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL pCloud
Ltd BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.
*/
#ifndef _PSYNC_LIST_H
#define _PSYNC_LIST_H
#include "pcompiler.h"
#include <stddef.h>
#include <stdint.h>
typedef uint32_t psync_listtype_t;
typedef struct _psync_list {
struct _psync_list *next;
struct _psync_list *prev;
} psync_list;
typedef struct {
psync_list list;
unsigned long used;
char elements[];
} psync_list_element_list;
typedef struct {
psync_list list;
char *next;
char *end;
} psync_list_string_list;
typedef struct {
psync_list list;
unsigned long used;
uint32_t numbers[1000];
} psync_list_num_list;
struct psync_list_builder_t_ {
size_t element_size;
size_t elements_offset;
size_t elements_per_list;
size_t stringalloc;
uint64_t cnt;
psync_list element_list;
psync_list_element_list *last_elements;
psync_list string_list;
psync_list_string_list *last_strings;
psync_list number_list;
psync_list_num_list *last_numbers;
unsigned long popoff;
char *current_element;
uint32_t *cstrcnt;
};
struct psync_list_builder_t_;
typedef struct psync_list_builder_t_ psync_list_builder_t;
typedef int (*psync_list_compare)(const psync_list *, const psync_list *);
#define psync_list_init(l) \
do { \
(l)->next = (l); \
(l)->prev = (l); \
} while (0)
#define PSYNC_LIST_STATIC_INIT(l) \
{ &l, &l }
#define psync_list_isempty(l) ((l)->next == (l))
#define psync_list_is_head(l, e) ((l)->next == (e))
#define psync_list_is_tail(l, e) ((l)->prev == (e))
static inline void psync_list_add_between(psync_list *l1, psync_list *l2,
psync_list *a) {
a->next = l2;
a->prev = l1;
l1->next = a;
l2->prev = a;
}
#define psync_list_add_head(l, a) psync_list_add_between(l, (l)->next, a)
#define psync_list_add_tail(l, a) psync_list_add_between((l)->prev, l, a)
#define psync_list_add_before(e, a) psync_list_add_between((e)->prev, e, a)
#define psync_list_add_after(e, a) psync_list_add_between(e, (e)->next, a)
#define psync_list_del(a) \
do { \
(a)->next->prev = (a)->prev; \
(a)->prev->next = (a)->next; \
} while (0)
#define psync_list_element(a, t, n) ((t *)((char *)(a)-offsetof(t, n)))
#define psync_list_for_each(a, l) \
for (a = (l)->next; psync_prefetch(a->next), a != (l); a = a->next)
#define psync_list_for_each_safe(a, b, l) \
for (a = (l)->next, b = a->next; psync_prefetch(b), a != (l); \
a = b, b = b->next)
#define psync_list_for_each_element(a, l, t, n) \
for (a = psync_list_element((l)->next, t, n); \
psync_prefetch(a->n.next), &a->n != (l); \
a = psync_list_element(a->n.next, t, n))
#define psync_list_for_each_element_call(l, t, n, c) \
do { \
psync_list *___tmpa, *___tmpb; \
psync_list_for_each_safe(___tmpa, ___tmpb, l) \
c(psync_list_element(___tmpa, t, n)); \
} while (0)
static inline psync_list *psync_list_remove_head(psync_list *l) {
l = l->next;
psync_list_del(l);
return l;
}
#define psync_list_remove_head_element(l, t, n) \
psync_list_element(psync_list_remove_head(l), t, n)
void psync_list_sort(psync_list *l, psync_list_compare cmp);
void psync_list_extract_repeating(psync_list *l1, psync_list *l2, psync_list *extracted1, psync_list *extracted2, psync_list_compare cmp);
uint32_t *psync_list_builder_push_num(psync_list_builder_t *builder);
uint32_t psync_list_builder_pop_num(psync_list_builder_t *builder);
psync_list_builder_t *psync_list_builder_create(size_t element_size, size_t offset);
void *psync_list_builder_add_element(psync_list_builder_t *builder);
void psync_list_add_string_offset(psync_list_builder_t *builder, size_t offset);
void psync_list_add_lstring_offset(psync_list_builder_t *builder, size_t offset, size_t length);
void *psync_list_builder_finalize(psync_list_builder_t *builder);
#endif