From d6c74352427367a334d37469962bbcf1b9ae364c Mon Sep 17 00:00:00 2001
From: Timo Teras <timo.teras@iki.fi>
Date: Thu, 17 Apr 2008 14:09:13 +0000
Subject: Initial commit of some stuff written so far. Still in state of flux.
 Expect breakage and major changes.

---
 src/apk_defines.h | 147 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 147 insertions(+)
 create mode 100644 src/apk_defines.h

(limited to 'src/apk_defines.h')

diff --git a/src/apk_defines.h b/src/apk_defines.h
new file mode 100644
index 0000000..ecd08e3
--- /dev/null
+++ b/src/apk_defines.h
@@ -0,0 +1,147 @@
+/* apk_defines.c - Alpine Package Keeper (APK)
+ *
+ * Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
+ * Copyright (C) 2008 Timo Teräs <timo.teras@iki.fi>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it 
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation. See http://www.gnu.org/ for details.
+ */
+
+#ifndef APK_DEFINES_H
+#define APK_DEFINES_H
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#define BIT(x) (1 << (x))
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#ifndef NULL
+#define NULL 0L
+#endif
+
+#ifndef container_of
+#define container_of(ptr, type, member) ({                      \
+        const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
+        (type *)( (char *)__mptr - offsetof(type,member) );})
+#endif
+
+#if 1
+#include "md5.h"
+
+typedef md5sum_t csum_t;
+typedef struct md5_ctx csum_ctx_t;
+
+#define csum_init(ctx)			md5_init(ctx)
+#define csum_process(ctx, buf, len)	md5_process(ctx, buf, len)
+#define csum_finish(ctx, buf)		md5_finish(ctx, buf)
+#endif
+
+#define apk_error(args...)	apk_log("ERROR: ", args)
+#define apk_warning(args...)	apk_log("WARNING: ", args)
+#define apk_message(args...)	apk_log(NULL, args)
+
+void apk_log(const char *prefix, const char *format, ...);
+
+#define APK_ARRAY(array_type_name, elem_type_name)			\
+	struct array_type_name {					\
+		int num;						\
+		elem_type_name item[];					\
+	};								\
+	static inline struct array_type_name *				\
+	array_type_name##_resize(struct array_type_name *a, int size)	\
+	{								\
+		struct array_type_name *tmp;				\
+		tmp = (struct array_type_name *)			\
+			realloc(a, sizeof(struct array_type_name) +	\
+				   size * sizeof(elem_type_name));	\
+		tmp->num = size;					\
+		return tmp;						\
+	}								\
+	static inline elem_type_name *					\
+	array_type_name##_add(struct array_type_name **a)		\
+	{								\
+		int size = 1;						\
+		if (*a != NULL) size += (*a)->num;			\
+		*a = array_type_name##_resize(*a, size);		\
+		return &(*a)->item[size-1];				\
+	}
+
+#define LIST_END (void *) 0xe01
+#define LIST_POISON1 (void *) 0xdeadbeef
+#define LIST_POISON2 (void *) 0xabbaabba
+
+struct hlist_head {
+	struct hlist_node *first;
+};
+
+struct hlist_node {
+	struct hlist_node *next;
+};
+
+static inline int hlist_empty(const struct hlist_head *h)
+{
+	return !h->first;
+}
+
+static inline int hlist_hashed(const struct hlist_node *n)
+{
+	return n->next != NULL;
+}
+
+static inline void __hlist_del(struct hlist_node *n, struct hlist_node **pprev)
+{
+	*pprev = n->next;
+}
+
+static inline void hlist_del(struct hlist_node *n, struct hlist_node **pprev)
+{
+	__hlist_del(n, pprev);
+	n->next = LIST_POISON1;
+}
+
+static inline void hlist_add_head(struct hlist_node *n, struct hlist_head *h)
+{
+	struct hlist_node *first = h->first;
+
+	n->next = first ? first : LIST_END;
+	h->first = n;
+}
+
+static inline void hlist_add_after(struct hlist_node *n, struct hlist_node **prev)
+{
+	n->next = *prev ? *prev : LIST_END;
+	*prev = n;
+}
+
+#define hlist_entry(ptr, type, member) container_of(ptr,type,member)
+
+#define hlist_for_each(pos, head) \
+	for (pos = (head)->first; pos && pos != LIST_END; \
+	     pos = pos->next)
+
+#define hlist_for_each_safe(pos, n, head) \
+	for (pos = (head)->first; pos && pos != LIST_END && \
+		({ n = pos->next; 1; }); \
+	     pos = n)
+
+#define hlist_for_each_entry(tpos, pos, head, member)			 \
+	for (pos = (head)->first;					 \
+	     pos && pos != LIST_END  &&					 \
+		({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
+	     pos = pos->next)
+
+#define hlist_for_each_entry_safe(tpos, pos, n, head, member) 		 \
+	for (pos = (head)->first;					 \
+	     pos && pos != LIST_END && ({ n = pos->next; 1; }) && 	 \
+		({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
+	     pos = n)
+
+#endif
-- 
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