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conf: factor out pw_conf_match_rules()

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Refactor and expose the rules matching code so that it can be used
elsewhere.
This commit is contained in:
Wim Taymans 2023-01-23 08:56:27 +01:00
parent d83f2520b6
commit 8f90446042
2 changed files with 28 additions and 12 deletions
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35
src/pipewire/conf.c
View file

@ -1013,12 +1013,6 @@ int pw_context_conf_update_props(struct pw_context *context,
return res == 0 ? data.count : res;
}
struct match {
const struct spa_dict *props;
int (*matched) (void *data, const char *location, const char *action,
const char *val, size_t len);
void *data;
};
/*
* {
@ -1080,7 +1074,7 @@ static bool find_match(struct spa_json *arr, const struct spa_dict *props)
}
/**
* rules = [
* [
* {
* matches = [
* # any of the items in matches needs to match, if one does,
@ -1099,11 +1093,13 @@ static bool find_match(struct spa_json *arr, const struct spa_dict *props)
* }
* ]
*/
static int match_rules(void *data, const char *location, const char *section,
const char *str, size_t len)
SPA_EXPORT
int pw_conf_match_rules(const char *str, size_t len, const char *location,
const struct spa_dict *props,
int (*callback) (void *data, const char *location, const char *action,
const char *str, size_t len),
void *data)
{
struct match *match = data;
const struct spa_dict *props = match->props;
const char *val;
struct spa_json it[4], actions;
@ -1142,13 +1138,28 @@ static int match_rules(void *data, const char *location, const char *section,
if (spa_json_is_container(val, len))
len = spa_json_container_len(&actions, val, len);
if ((res = match->matched(match->data, location, key, val, len)) < 0)
if ((res = callback(data, location, key, val, len)) < 0)
return res;
}
}
return 0;
}
struct match {
const struct spa_dict *props;
int (*matched) (void *data, const char *location, const char *action,
const char *val, size_t len);
void *data;
};
static int match_rules(void *data, const char *location, const char *section,
const char *str, size_t len)
{
struct match *match = data;
return pw_conf_match_rules(str, len, location,
match->props, match->matched, match->data);
}
SPA_EXPORT
int pw_context_conf_section_match_rules(struct pw_context *context, const char *section,
const struct spa_dict *props,

5
src/pipewire/conf.h
View file

@ -38,6 +38,11 @@ int pw_conf_load_conf(const char *prefix, const char *name, struct pw_properties
int pw_conf_load_state(const char *prefix, const char *name, struct pw_properties *conf);
int pw_conf_save_state(const char *prefix, const char *name, const struct pw_properties *conf);
int pw_conf_match_rules(const char *str, size_t len, const char *location,
const struct spa_dict *props,
int (*callback) (void *data, const char *location, const char *action,
const char *str, size_t len),
void *data);
/**
* \}