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/* ALSA Card Profile
*
* Copyright © 2020 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef PA_PROPLIST_H
#define PA_PROPLIST_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdio.h>
#include "array.h"
#include "acp.h"
#define PA_PROP_DEVICE_DESCRIPTION "device.description"
#define PA_PROP_DEVICE_CLASS "device.class"
#define PA_PROP_DEVICE_FORM_FACTOR "device.form_factor"
#define PA_PROP_DEVICE_INTENDED_ROLES "device.intended_roles"
#define PA_PROP_DEVICE_PROFILE_NAME "device.profile.name"
#define PA_PROP_DEVICE_STRING "device.string"
#define PA_PROP_DEVICE_API "device.api"
#define PA_PROP_DEVICE_PRODUCT_NAME "device.product.name"
#define PA_PROP_DEVICE_PROFILE_DESCRIPTION "device.profile.description"
typedef struct pa_proplist_item {
char *key;
char *value;
} pa_proplist_item;
typedef struct pa_proplist {
struct pa_array array;
} pa_proplist;
static inline pa_proplist* pa_proplist_new(void)
{
pa_proplist *p = calloc(1, sizeof(*p));
pa_array_init(&p->array, 16);
return p;
}
static inline pa_proplist_item* pa_proplist_item_find(const pa_proplist *p, const void *key)
{
pa_proplist_item *item;
pa_array_for_each(item, &p->array) {
if (strcmp(key, item->key) == 0)
return item;
}
return NULL;
}
static inline void pa_proplist_item_free(pa_proplist_item* it)
{
free(it->key);
free(it->value);
}
static inline void pa_proplist_clear(pa_proplist* p)
{
pa_proplist_item *item;
pa_array_for_each(item, &p->array)
pa_proplist_item_free(item);
pa_array_reset(&p->array);
}
static inline void pa_proplist_free(pa_proplist* p)
{
pa_proplist_clear(p);
pa_array_clear(&p->array);
free(p);
}
static inline unsigned pa_proplist_size(const pa_proplist *p)
{
return pa_array_get_len(&p->array, pa_proplist_item);
}
static inline int pa_proplist_contains(const pa_proplist *p, const char *key)
{
return pa_proplist_item_find(p, key) ? 1 : 0;
}
static inline int pa_proplist_sets(pa_proplist *p, const char *key, const char *value)
{
pa_proplist_item *item = pa_proplist_item_find(p, key);
if (item != NULL)
pa_proplist_item_free(item);
else
item = pa_array_add(&p->array, sizeof(*item));
item->key = strdup(key);
item->value = strdup(value);
return 0;
}
static inline int pa_proplist_unset(pa_proplist *p, const char *key)
{
pa_proplist_item *item = pa_proplist_item_find(p, key);
if (item == NULL)
return -ENOENT;
pa_proplist_item_free(item);
pa_array_remove(&p->array, item);
return 0;
}
static PA_PRINTF_FUNC(3,4) inline int pa_proplist_setf(pa_proplist *p, const char *key, const char *format, ...)
{
pa_proplist_item *item = pa_proplist_item_find(p, key);
va_list args;
int res;
va_start(args, format);
if (item != NULL)
pa_proplist_item_free(item);
else
item = pa_array_add(&p->array, sizeof(*item));
item->key = strdup(key);
if ((res = vasprintf(&item->value, format, args)) < 0)
res = -errno;
va_end(args);
return res;
}
static inline const char *pa_proplist_gets(const pa_proplist *p, const char *key)
{
pa_proplist_item *item = pa_proplist_item_find(p, key);
return item ? item->value : NULL;
}
typedef enum pa_update_mode {
PA_UPDATE_SET
/**< Replace the entire property list with the new one. Don't keep
* any of the old data around. */,
PA_UPDATE_MERGE
/**< Merge new property list into the existing one, not replacing
* any old entries if they share a common key with the new
* property list. */,
PA_UPDATE_REPLACE
/**< Merge new property list into the existing one, replacing all
* old entries that share a common key with the new property
* list. */
} pa_update_mode_t;
static inline void pa_proplist_update(pa_proplist *p, pa_update_mode_t mode, const pa_proplist *other)
{
pa_proplist_item *item;
if (mode == PA_UPDATE_SET)
pa_proplist_clear(p);
pa_array_for_each(item, &other->array) {
if (mode == PA_UPDATE_MERGE && pa_proplist_contains(p, item->key))
continue;
pa_proplist_sets(p, item->key, item->value);
}
}
static inline pa_proplist* pa_proplist_new_dict(const struct acp_dict *dict)
{
pa_proplist *p = pa_proplist_new();
if (dict) {
const struct acp_dict_item *item;
struct acp_dict_item *it;
acp_dict_for_each(item, dict) {
it = pa_array_add(&p->array, sizeof(*it));
it->key = strdup(item->key);
it->value = strdup(item->value);
}
}
return p;
}
static inline void pa_proplist_as_dict(const pa_proplist *p, struct acp_dict *dict)
{
dict->n_items = pa_proplist_size(p);
dict->items = p->array.data;
}
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* PA_PROPLIST_H */
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