148 lines
3.7 KiB
C
148 lines
3.7 KiB
C
/* apk_defines.c - Alpine Package Keeper (APK)
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*
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* Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
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* Copyright (C) 2008 Timo Teräs <timo.teras@iki.fi>
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation. See http://www.gnu.org/ for details.
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*/
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#ifndef APK_DEFINES_H
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#define APK_DEFINES_H
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#define BIT(x) (1 << (x))
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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#ifndef NULL
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#define NULL 0L
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#endif
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#ifndef container_of
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#define container_of(ptr, type, member) ({ \
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const typeof( ((type *)0)->member ) *__mptr = (ptr); \
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(type *)( (char *)__mptr - offsetof(type,member) );})
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#endif
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#if 1
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#include "md5.h"
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typedef md5sum_t csum_t;
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typedef struct md5_ctx csum_ctx_t;
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#define csum_init(ctx) md5_init(ctx)
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#define csum_process(ctx, buf, len) md5_process(ctx, buf, len)
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#define csum_finish(ctx, buf) md5_finish(ctx, buf)
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#endif
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#define apk_error(args...) apk_log("ERROR: ", args)
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#define apk_warning(args...) apk_log("WARNING: ", args)
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#define apk_message(args...) apk_log(NULL, args)
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void apk_log(const char *prefix, const char *format, ...);
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#define APK_ARRAY(array_type_name, elem_type_name) \
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struct array_type_name { \
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int num; \
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elem_type_name item[]; \
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}; \
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static inline struct array_type_name * \
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array_type_name##_resize(struct array_type_name *a, int size) \
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{ \
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struct array_type_name *tmp; \
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tmp = (struct array_type_name *) \
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realloc(a, sizeof(struct array_type_name) + \
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size * sizeof(elem_type_name)); \
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tmp->num = size; \
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return tmp; \
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} \
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static inline elem_type_name * \
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array_type_name##_add(struct array_type_name **a) \
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{ \
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int size = 1; \
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if (*a != NULL) size += (*a)->num; \
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*a = array_type_name##_resize(*a, size); \
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return &(*a)->item[size-1]; \
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}
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#define LIST_END (void *) 0xe01
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#define LIST_POISON1 (void *) 0xdeadbeef
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#define LIST_POISON2 (void *) 0xabbaabba
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struct hlist_head {
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struct hlist_node *first;
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};
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struct hlist_node {
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struct hlist_node *next;
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};
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static inline int hlist_empty(const struct hlist_head *h)
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{
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return !h->first;
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}
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static inline int hlist_hashed(const struct hlist_node *n)
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{
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return n->next != NULL;
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}
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static inline void __hlist_del(struct hlist_node *n, struct hlist_node **pprev)
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{
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*pprev = n->next;
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}
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static inline void hlist_del(struct hlist_node *n, struct hlist_node **pprev)
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{
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__hlist_del(n, pprev);
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n->next = LIST_POISON1;
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}
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static inline void hlist_add_head(struct hlist_node *n, struct hlist_head *h)
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{
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struct hlist_node *first = h->first;
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n->next = first ? first : LIST_END;
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h->first = n;
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}
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static inline void hlist_add_after(struct hlist_node *n, struct hlist_node **prev)
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{
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n->next = *prev ? *prev : LIST_END;
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*prev = n;
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}
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#define hlist_entry(ptr, type, member) container_of(ptr,type,member)
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#define hlist_for_each(pos, head) \
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for (pos = (head)->first; pos && pos != LIST_END; \
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pos = pos->next)
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#define hlist_for_each_safe(pos, n, head) \
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for (pos = (head)->first; pos && pos != LIST_END && \
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({ n = pos->next; 1; }); \
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pos = n)
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#define hlist_for_each_entry(tpos, pos, head, member) \
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for (pos = (head)->first; \
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pos && pos != LIST_END && \
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({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
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pos = pos->next)
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#define hlist_for_each_entry_safe(tpos, pos, n, head, member) \
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for (pos = (head)->first; \
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pos && pos != LIST_END && ({ n = pos->next; 1; }) && \
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({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
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pos = n)
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#endif
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