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pw-dump: add pattern matching

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Do pattern matching on object properties to also allow lookups on
type, object.path, object.serial and <type>.name.

ex:

  pw-dump alsa_card.usb-BEHRINGER_UMC404HD_192k-00
  pw-dump alsa_input*
  pw-dump Node
This commit is contained in:
Wim Taymans 2022-01-26 16:27:34 +01:00
parent 97d571d1e7
commit b7e0b5437b
1 changed files with 41 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

47
src/tools/pw-dump.c
View file

@ -30,6 +30,7 @@
#include <getopt.h>
#include <limits.h>
#include <math.h>
#include <fnmatch.h>
#include <spa/utils/result.h>
#include <spa/utils/string.h>
@ -37,6 +38,7 @@
#include <spa/debug/types.h>
#include <spa/utils/json.h>
#include <spa/utils/ansi.h>
#include <spa/utils/string.h>
#include <pipewire/pipewire.h>
#include <pipewire/extensions/metadata.h>
@ -65,7 +67,7 @@ struct data {
struct spa_list object_list;
uint32_t id;
const char *pattern;
FILE *out;
int level;
@ -93,6 +95,7 @@ struct class {
const void *events;
void (*destroy) (struct object *object);
void (*dump) (struct object *object);
const char *name_key;
};
struct object {
@ -552,6 +555,7 @@ static const struct class core_class = {
.type = PW_TYPE_INTERFACE_Core,
.version = PW_VERSION_CORE,
.dump = core_dump,
.name_key = PW_KEY_CORE_NAME,
};
/* client */
@ -608,6 +612,7 @@ static const struct class client_class = {
.events = &client_events,
.destroy = client_destroy,
.dump = client_dump,
.name_key = PW_KEY_APP_NAME,
};
/* module */
@ -667,6 +672,7 @@ static const struct class module_class = {
.events = &module_events,
.destroy = module_destroy,
.dump = module_dump,
.name_key = PW_KEY_MODULE_NAME,
};
/* factory */
@ -726,6 +732,7 @@ static const struct class factory_class = {
.events = &factory_events,
.destroy = factory_destroy,
.dump = factory_dump,
.name_key = PW_KEY_FACTORY_NAME,
};
/* device */
@ -810,6 +817,7 @@ static const struct class device_class = {
.events = &device_events,
.destroy = device_destroy,
.dump = device_dump,
.name_key = PW_KEY_DEVICE_NAME,
};
/* node */
@ -906,6 +914,7 @@ static const struct class node_class = {
.events = &node_events,
.destroy = node_destroy,
.dump = node_dump,
.name_key = PW_KEY_NODE_NAME,
};
/* port */
@ -991,6 +1000,7 @@ static const struct class port_class = {
.events = &port_events,
.destroy = port_destroy,
.dump = port_dump,
.name_key = PW_KEY_PORT_NAME,
};
/* link */
@ -1206,6 +1216,7 @@ static const struct class metadata_class = {
.events = &metadata_events,
.destroy = metadata_destroy,
.dump = metadata_dump,
.name_key = PW_KEY_METADATA_NAME,
};
static const struct class *classes[] =
@ -1331,6 +1342,32 @@ static const struct pw_registry_events registry_events = {
.global_remove = registry_event_global_remove,
};
static bool object_matches(struct object *o, const char *pattern)
{
uint32_t id;
const char *str;
if (spa_atou32(pattern, &id, 0) && o->id == id)
return true;
if (o->props == NULL)
return false;
if (strstr(o->type, pattern) != NULL)
return true;
if ((str = pw_properties_get(o->props, PW_KEY_OBJECT_PATH)) != NULL &&
fnmatch(pattern, str, FNM_EXTMATCH) == 0)
return true;
if ((str = pw_properties_get(o->props, PW_KEY_OBJECT_SERIAL)) != NULL &&
spa_streq(pattern, str))
return true;
if (o->class != NULL && o->class->name_key != NULL &&
(str = pw_properties_get(o->props, o->class->name_key)) != NULL &&
fnmatch(pattern, str, FNM_EXTMATCH) == 0)
return true;
return false;
}
static void dump_objects(struct data *d)
{
static const struct flags_info fl[] = {
@ -1345,7 +1382,7 @@ static void dump_objects(struct data *d)
d->state = STATE_FIRST;
spa_list_for_each(o, &d->object_list, link) {
if (d->id != SPA_ID_INVALID && d->id != o->id)
if (d->pattern != NULL && !object_matches(o, d->pattern))
continue;
if (o->changed == 0)
continue;
@ -1493,10 +1530,8 @@ int main(int argc, char *argv[])
}
}
data.id = SPA_ID_INVALID;
if (optind < argc) {
spa_atou32(argv[optind++], &data.id, 0);
}
if (optind < argc)
data.pattern = argv[optind++];
data.loop = pw_main_loop_new(NULL);
if (data.loop == NULL) {