25 #ifndef PIPEWIRE_ARRAY_H
26 #define PIPEWIRE_ARRAY_H
55 #define PW_ARRAY_INIT(extend) (struct pw_array) { NULL, 0, 0, extend }
57 #define pw_array_get_len_s(a,s) ((a)->size / (s))
58 #define pw_array_get_unchecked_s(a,idx,s,t) SPA_PTROFF((a)->data,(idx)*(s),t)
59 #define pw_array_check_index_s(a,idx,s) ((idx) < pw_array_get_len_s(a,s))
62 #define pw_array_get_len(a,t) pw_array_get_len_s(a,sizeof(t))
64 #define pw_array_get_unchecked(a,idx,t) pw_array_get_unchecked_s(a,idx,sizeof(t),t)
66 #define pw_array_check_index(a,idx,t) pw_array_check_index_s(a,idx,sizeof(t))
68 #define pw_array_first(a) ((a)->data)
69 #define pw_array_end(a) SPA_PTROFF((a)->data, (a)->size, void)
70 #define pw_array_check(a,p) (SPA_PTROFF(p,sizeof(*p),void) <= pw_array_end(a))
72 #define pw_array_for_each(pos, array) \
73 for (pos = (__typeof__(pos)) pw_array_first(array); \
74 pw_array_check(array, pos); \
77 #define pw_array_consume(pos, array) \
78 for (pos = (__typeof__(pos)) pw_array_first(array); \
79 pw_array_check(array, pos); \
80 pos = (__typeof__(pos)) pw_array_first(array))
82 #define pw_array_remove(a,p) \
84 (a)->size -= sizeof(*(p)); \
85 memmove(p, SPA_PTROFF((p), sizeof(*(p)), void), \
86 SPA_PTRDIFF(pw_array_end(a),(p))); \
90 static inline void pw_array_init(
struct pw_array *arr,
size_t extend)
98 static inline void pw_array_clear(
struct pw_array *arr)
104 static inline void pw_array_reset(
struct pw_array *arr)
110 static inline int pw_array_ensure_size(
struct pw_array *arr,
size_t size)
115 need = arr->
size + size;
132 static inline void *pw_array_add(
struct pw_array *arr,
size_t size)
136 if (pw_array_ensure_size(arr, size) < 0)
147 static inline void *pw_array_add_fixed(
struct pw_array *arr,
size_t size)
163 #define pw_array_add_ptr(a,p) \
164 *((void**) pw_array_add(a, sizeof(void*))) = (p)
#define SPA_UNLIKELY(x)
Definition: defs.h:232
#define SPA_PTROFF(ptr_, offset_, type_)
Return the address (buffer + offset) as pointer of type.
Definition: defs.h:158
#define SPA_MAX(a, b)
Definition: defs.h:128
size_t size
length of array in bytes
Definition: array.h:50
size_t alloc
number of allocated memory in data
Definition: array.h:51
size_t extend
number of bytes to extend with
Definition: array.h:52
void * data
pointer to array data
Definition: array.h:49