pipewire/pinos/client/array.h
Wim Taymans 89bc235924 Cleanups
Hide GDBus from RTKit API
Remove register node from dbus API
Add signal
Add object and register objects in the registry
Add some preregistered types to the registry
Let the daemon listen to the registry
2016-11-08 18:00:52 +01:00

119 lines
3 KiB
C

/* Simple Plugin API
* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __PINOS_ARRAY_H__
#define __PINOS_ARRAY_H__
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _PinosArray PinosArray;
#include <spa/defs.h>
struct _PinosArray {
void *data;
size_t size;
size_t alloc;
};
#define pinos_array_get_len_s(a,s) ((a)->size / (s))
#define pinos_array_get_unchecked_s(a,idx,s,t) SPA_MEMBER ((a)->data,(idx)*(s),t)
#define pinos_array_check_index_s(a,idx,s) ((idx) < pinos_array_get_len(a,s))
#define pinos_array_get_len(a,t) pinos_array_get_len_s(a,sizeof(t))
#define pinos_array_get_unchecked(a,idx,t) pinos_array_get_unchecked_s(a,idx,sizeof(t),t)
#define pinos_array_check_index(a,idx,t) pinos_array_check_index_s(a,idx,sizeof(t))
#define PINOS_ARRAY_FOREACH(pos, array) \
for (pos = (array)->data; \
(const char *) pos < ((const char *) (array)->data + (array)->size); \
(pos)++)
static inline void
pinos_array_init (PinosArray *arr)
{
arr->data = NULL;
arr->size = arr->alloc = 0;
}
static inline void
pinos_array_clear (PinosArray *arr)
{
free (arr->data);
}
static inline bool
pinos_array_ensure_size (PinosArray *arr,
size_t size)
{
size_t alloc, need;
alloc = arr->alloc;
need = arr->size + size;
if (SPA_UNLIKELY (alloc < need)) {
void *data;
alloc = SPA_MAX (alloc, 16);
while (alloc < need)
alloc *= 2;
if (SPA_UNLIKELY ((data = realloc (arr->data, alloc)) == NULL))
return false;
arr->data = data;
arr->alloc = alloc;
}
return true;
}
static inline void *
pinos_array_add (PinosArray *arr,
size_t size)
{
void *p;
if (!pinos_array_ensure_size (arr, size))
return NULL;
p = arr->data + arr->size;
arr->size += size;
return p;
}
static inline void *
pinos_array_add_fixed (PinosArray *arr,
size_t size)
{
void *p;
if (SPA_UNLIKELY (arr->alloc < arr->size + size))
return NULL;
p = arr->data + arr->size;
arr->size += size;
return p;
}
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* __PINOS_ARRAY_H__ */