Annotation of embedaddon/lighttpd/src/vector.h, revision 1.1.1.1
1.1 misho 1: #ifndef LI_VECTOR_H
2: #define LI_VECTOR_H
3: #include "first.h"
4:
5: #ifndef SIZE_MAX
6: # ifdef SIZE_T_MAX
7: # define SIZE_MAX SIZE_T_MAX
8: # else
9: # define SIZE_MAX ((size_t)~0)
10: # endif
11: #endif
12:
13: #include <stdlib.h>
14: #include <string.h>
15:
16: static inline size_t vector_align_size(size_t s) {
17: size_t a = (s + 16) & ((size_t)~15);
18: return (a < s) ? s : a;
19: }
20:
21: void *vector_realloc(void *data, size_t elem_size, size_t size, size_t used);
22:
23: #define DEFINE_TYPED_VECTOR(name, entry, release) \
24: typedef struct vector_ ## name { \
25: entry* data; \
26: size_t used; \
27: size_t size; \
28: } vector_ ## name; \
29: static inline void vector_ ## name ## _init(vector_ ## name *v) { \
30: v->data = NULL; \
31: v->used = v->size = 0; \
32: } \
33: static inline vector_ ## name *vector_ ## name ## _alloc() { \
34: vector_ ## name *v = malloc(sizeof(*v)); \
35: force_assert(NULL != v); \
36: vector_ ## name ## _init(v); \
37: return v; \
38: } \
39: static inline void vector_ ## name ## _clear(vector_ ## name *v) { \
40: size_t ndx; \
41: vector_ ## name vcopy = *v; \
42: vector_ ## name ## _init(v); \
43: if (release) for (ndx = 0; ndx < vcopy.used; ++ndx) release(vcopy.data[ndx]); \
44: free(vcopy.data); \
45: } \
46: static inline void vector_ ## name ## _free(vector_ ## name *v) { \
47: if (NULL != v) { \
48: vector_ ## name ## _clear(v); \
49: free(v); \
50: } \
51: } \
52: static inline void vector_ ## name ## _reserve(vector_ ## name *v, size_t p) { \
53: force_assert(v->used < SIZE_MAX - p); \
54: if (v->size < v->used + p) { \
55: v->size = vector_align_size(v->used + p); \
56: v->data = vector_realloc(v->data, sizeof(entry), v->size, v->used); \
57: } \
58: } \
59: static inline void vector_ ## name ## _push(vector_ ## name *v, entry e) { \
60: vector_ ## name ## _reserve(v, 1); \
61: v->data[v->used++] = e; \
62: } \
63: static inline entry vector_ ## name ## _pop(vector_ ## name *v) { \
64: force_assert(v->used > 0); \
65: return v->data[--v->used]; \
66: } \
67: struct vector_ ## name /* expect trailing semicolon */ \
68: /* end of DEFINE_TYPED_VECTOR */
69:
70: #define DEFINE_TYPED_VECTOR_NO_RELEASE(name, entry) \
71: DEFINE_TYPED_VECTOR(name, entry, ((void(*)(entry)) NULL)) \
72: /* end of DEFINE_TYPED_VECTOR_NO_RELEASE */
73:
74:
75: #endif
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