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pw-dot: add json input mode

Browse source 
This mode allows using a json file generated by pw-dump as input,
in order to visualize it.

Example usage:
 pw-dump > dump.json
 pw-dot -j dump.json -sL

This enables developers to easily visualize user dumps and at liberty switch
visualization modes (all, smart, detail, etc) without requiring the user
to do anything except for generating the initial dump.
This commit is contained in:
George Kiagiadakis 2022-03-21 18:27:31 +02:00
parent d161019b0d
commit b409792ea4
1 changed files with 342 additions and 77 deletions
Download patch file Download diff file Expand all files Collapse all files

419
src/tools/pw-dot.c
View file

@ -25,9 +25,15 @@
#include <stdio.h> #include <stdio.h>
#include <signal.h> #include <signal.h>
#include <getopt.h> #include <getopt.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <spa/utils/result.h> #include <spa/utils/result.h>
#include <spa/utils/string.h> #include <spa/utils/string.h>
#include <spa/utils/json.h>
#include <spa/debug/pod.h> #include <spa/debug/pod.h>
#include <spa/debug/format.h> #include <spa/debug/format.h>
#include <spa/debug/types.h> #include <spa/debug/types.h>
@ -77,7 +83,6 @@ struct global {
#define INTERFACE_Module 5 #define INTERFACE_Module 5
#define INTERFACE_Factory 6 #define INTERFACE_Factory 6
uint32_t type; uint32_t type;
struct pw_properties *props;
void *info; void *info;
pw_destroy_t info_destroy; pw_destroy_t info_destroy;
@ -152,9 +157,8 @@ static void draw_dict(char **str, const char *title,
} }
} }
static SPA_PRINTF_FUNC(7,0) void draw_vlabel(char **str, const char *name, uint32_t id, bool detail, static SPA_PRINTF_FUNC(6,0) void draw_vlabel(char **str, const char *name, uint32_t id, bool detail,
const struct spa_dict *info_p, const struct spa_dict *p, const struct spa_dict *props, const char *fmt, va_list varargs)
const char *fmt, va_list varargs)
{ {
/* draw the label header */ /* draw the label header */
dot_str_add(str, "%s_%u [label=\"", name, id); dot_str_add(str, "%s_%u [label=\"", name, id);
@ -162,22 +166,19 @@ static SPA_PRINTF_FUNC(7,0) void draw_vlabel(char **str, const char *name, uint3
/* draw the label body */ /* draw the label body */
dot_str_vadd(str, fmt, varargs); dot_str_vadd(str, fmt, varargs);
if (detail) { if (detail)
draw_dict(str, "info_props", info_p); draw_dict(str, "properties", props);
draw_dict(str, "properties", p);
}
/*draw the label footer */ /*draw the label footer */
dot_str_add(str, "%s", "\"];\n"); dot_str_add(str, "%s", "\"];\n");
} }
static SPA_PRINTF_FUNC(7,8) void draw_label(char **str, const char *name, uint32_t id, bool detail, static SPA_PRINTF_FUNC(6,7) void draw_label(char **str, const char *name, uint32_t id, bool detail,
const struct spa_dict *info_p, const struct spa_dict *p, const struct spa_dict *props, const char *fmt, ...)
const char *fmt, ...)
{ {
va_list varargs; va_list varargs;
va_start(varargs, fmt); va_start(varargs, fmt);
draw_vlabel(str, name, id, detail, info_p, p, fmt, varargs); draw_vlabel(str, name, id, detail, props, fmt, varargs);
va_end(varargs); va_end(varargs);
} }
@ -199,7 +200,7 @@ static void draw_port(struct global *g)
/* draw the label */ /* draw the label */
draw_label(dot_str, draw_label(dot_str,
"port", g->id, g->data->show_detail, info->props, &g->props->dict, "port", g->id, g->data->show_detail, info->props,
"port_id: %u\\lname: %s\\ldirection: %s\\l", "port_id: %u\\lname: %s\\ldirection: %s\\l",
g->id, g->id,
spa_dict_lookup(info->props, PW_KEY_PORT_NAME), spa_dict_lookup(info->props, PW_KEY_PORT_NAME),
@ -237,10 +238,9 @@ static void draw_node(struct global *g)
g->id, g->id,
spa_dict_lookup(info->props, PW_KEY_NODE_NAME), spa_dict_lookup(info->props, PW_KEY_NODE_NAME),
spa_dict_lookup(info->props, PW_KEY_MEDIA_CLASS)); spa_dict_lookup(info->props, PW_KEY_MEDIA_CLASS));
if (g->data->show_detail) {
draw_dict(dot_str, "info_props", info->props); if (g->data->show_detail)
draw_dict(dot_str, "properties", &g->props->dict); draw_dict(dot_str, "properties", info->props);
}
/*draw the label footer */ /*draw the label footer */
dot_str_add(dot_str, "%s", "\"\n"); dot_str_add(dot_str, "%s", "\"\n");
@ -249,11 +249,13 @@ static void draw_node(struct global *g)
struct global *p; struct global *p;
const char *prop_node_id; const char *prop_node_id;
spa_list_for_each(p, &g->data->globals, link) { spa_list_for_each(p, &g->data->globals, link) {
struct pw_port_info *pinfo;
if (p->info == NULL) if (p->info == NULL)
continue; continue;
if (p->type != INTERFACE_Port) if (p->type != INTERFACE_Port)
continue; continue;
prop_node_id = pw_properties_get(p->props, PW_KEY_NODE_ID); pinfo = p->info;
prop_node_id = spa_dict_lookup(pinfo->props, PW_KEY_NODE_ID);
if (!prop_node_id || (uint32_t)atoi(prop_node_id) != g->id) if (!prop_node_id || (uint32_t)atoi(prop_node_id) != g->id)
continue; continue;
if (p->draw) if (p->draw)
@ -290,7 +292,7 @@ static void draw_link(struct global *g)
/* draw the label */ /* draw the label */
draw_label(dot_str, draw_label(dot_str,
"link", g->id, g->data->show_detail, info->props, &g->props->dict, "link", g->id, g->data->show_detail, info->props,
"link_id: %u\\loutput_node_id: %u\\linput_node_id: %u\\loutput_port_id: %u\\linput_port_id: %u\\lstate: %s\\l", "link_id: %u\\loutput_node_id: %u\\linput_node_id: %u\\loutput_port_id: %u\\linput_port_id: %u\\lstate: %s\\l",
g->id, g->id,
info->output_node_id, info->output_node_id,
@ -318,7 +320,7 @@ static void draw_client(struct global *g)
/* draw the label */ /* draw the label */
draw_label(dot_str, draw_label(dot_str,
"client", g->id, g->data->show_detail, info->props, &g->props->dict, "client", g->id, g->data->show_detail, info->props,
"client_id: %u\\lname: %s\\lpid: %s\\l", "client_id: %u\\lname: %s\\lpid: %s\\l",
g->id, g->id,
spa_dict_lookup(info->props, PW_KEY_APP_NAME), spa_dict_lookup(info->props, PW_KEY_APP_NAME),
@ -345,7 +347,7 @@ static void draw_device(struct global *g)
/* draw the label */ /* draw the label */
draw_label(dot_str, draw_label(dot_str,
"device", g->id, g->data->show_detail, info->props, &g->props->dict, "device", g->id, g->data->show_detail, info->props,
"device_id: %u\\lname: %s\\lmedia_class: %s\\lapi: %s\\lpath: %s\\l", "device_id: %u\\lname: %s\\lmedia_class: %s\\lapi: %s\\lpath: %s\\l",
g->id, g->id,
spa_dict_lookup(info->props, PW_KEY_DEVICE_NAME), spa_dict_lookup(info->props, PW_KEY_DEVICE_NAME),
@ -376,7 +378,7 @@ static void draw_factory(struct global *g)
/* draw the label */ /* draw the label */
draw_label(dot_str, draw_label(dot_str,
"factory", g->id, g->data->show_detail, info->props, &g->props->dict, "factory", g->id, g->data->show_detail, info->props,
"factory_id: %u\\lname: %s\\lmodule_id: %u\\l", "factory_id: %u\\lname: %s\\lmodule_id: %u\\l",
g->id, info->name, module_id g->id, info->name, module_id
); );
@ -399,7 +401,7 @@ static void draw_module(struct global *g)
/* draw the label */ /* draw the label */
draw_label(dot_str, draw_label(dot_str,
"module", g->id, g->data->show_detail, info->props, &g->props->dict, "module", g->id, g->data->show_detail, info->props,
"module_id: %u\\lname: %s\\l", "module_id: %u\\lname: %s\\l",
g->id, info->name g->id, info->name
); );
@ -611,9 +613,6 @@ static void destroy_proxy(void *user_data)
struct global *g = user_data; struct global *g = user_data;
spa_hook_remove(&g->object_listener); spa_hook_remove(&g->object_listener);
spa_hook_remove(&g->proxy_listener); spa_hook_remove(&g->proxy_listener);
pw_properties_free(g->props);
if (g->info)
g->info_destroy(g->info);
} }
static const struct pw_proxy_events proxy_events = { static const struct pw_proxy_events proxy_events = {
@ -701,20 +700,17 @@ static void registry_event_global(void *data, uint32_t id, uint32_t permissions,
return; return;
} }
proxy = pw_registry_bind(d->registry, id, type, proxy = pw_registry_bind(d->registry, id, type, client_version, 0);
client_version,
sizeof(struct global));
if (proxy == NULL) if (proxy == NULL)
return; return;
/* set the global data */ /* set the global data */
g = pw_proxy_get_user_data(proxy); g = calloc(1, sizeof(struct global));
g->data = d; g->data = d;
g->proxy = proxy; g->proxy = proxy;
g->id = id; g->id = id;
g->type = object_type; g->type = object_type;
g->props = props ? pw_properties_new_dict(props) : NULL;
g->info = NULL; g->info = NULL;
g->info_destroy = info_destroy; g->info_destroy = info_destroy;
@ -762,6 +758,300 @@ static void do_quit(void *data, int signal_number)
pw_main_loop_quit(d->loop); pw_main_loop_quit(d->loop);
} }
static int get_data_from_pipewire(struct data *data, const char *opt_remote)
{
struct pw_loop *l;
struct global *g;
data->loop = pw_main_loop_new(NULL);
if (data->loop == NULL) {
fprintf(stderr, "can't create main loop: %m\n");
return -1;
}
l = pw_main_loop_get_loop(data->loop);
pw_loop_add_signal(l, SIGINT, do_quit, &data);
pw_loop_add_signal(l, SIGTERM, do_quit, &data);
data->context = pw_context_new(l, NULL, 0);
if (data->context == NULL) {
fprintf(stderr, "can't create context: %m\n");
pw_main_loop_destroy(data->loop);
return -1;
}
data->core = pw_context_connect(data->context,
pw_properties_new(
PW_KEY_REMOTE_NAME, opt_remote,
NULL),
0);
if (data->core == NULL) {
fprintf(stderr, "can't connect: %m\n");
pw_context_destroy(data->context);
pw_main_loop_destroy(data->loop);
return -1;
}
pw_core_add_listener(data->core,
&data->core_listener,
&core_events, data);
data->registry = pw_core_get_registry(data->core,
PW_VERSION_REGISTRY, 0);
pw_registry_add_listener(data->registry,
&data->registry_listener,
&registry_events, data);
pw_main_loop_run(data->loop);
spa_hook_remove(&data->registry_listener);
pw_proxy_destroy((struct pw_proxy*)data->registry);
spa_list_for_each(g, &data->globals, link)
pw_proxy_destroy(g->proxy);
spa_hook_remove(&data->core_listener);
pw_context_destroy(data->context);
pw_main_loop_destroy(data->loop);
return 0;
}
static void handle_json_obj(struct data *data, struct pw_properties *obj)
{
struct global *g;
struct pw_properties *info, *props;
const char *str;
str = pw_properties_get(obj, "type");
if (!str) {
fprintf(stderr, "invalid object without type\n");
return;
}
g = calloc(1, sizeof (struct global));
g->data = data;
if (spa_streq(str, PW_TYPE_INTERFACE_Port)) {
g->info_destroy = (pw_destroy_t)pw_port_info_free;
g->draw = draw_port;
g->type = INTERFACE_Port;
}
else if (spa_streq(str, PW_TYPE_INTERFACE_Node)) {
g->info_destroy = (pw_destroy_t)pw_node_info_free;
g->draw = draw_node;
g->type = INTERFACE_Node;
}
else if (spa_streq(str, PW_TYPE_INTERFACE_Link)) {
g->info_destroy = (pw_destroy_t)pw_link_info_free;
g->draw = draw_link;
g->type = INTERFACE_Link;
}
else if (spa_streq(str, PW_TYPE_INTERFACE_Client)) {
g->info_destroy = (pw_destroy_t)pw_client_info_free;
g->draw = draw_client;
g->type = INTERFACE_Client;
}
else if (spa_streq(str, PW_TYPE_INTERFACE_Device)) {
g->info_destroy = (pw_destroy_t)pw_device_info_free;
g->draw = draw_device;
g->type = INTERFACE_Device;
}
else if (spa_streq(str, PW_TYPE_INTERFACE_Factory)) {
g->info_destroy = (pw_destroy_t)pw_factory_info_free;
g->draw = draw_factory;
g->type = INTERFACE_Factory;
}
else if (spa_streq(str, PW_TYPE_INTERFACE_Module)) {
g->info_destroy = (pw_destroy_t)pw_module_info_free;
g->draw = draw_module;
g->type = INTERFACE_Module;
}
else {
free(g);
return;
}
g->id = pw_properties_get_uint32(obj, "id", 0);
str = pw_properties_get(obj, "info");
info = pw_properties_new_string(str);
str = pw_properties_get(info, "props");
props = str ? pw_properties_new_string(str) : NULL;
switch (g->type) {
case INTERFACE_Port: {
struct pw_port_info pinfo = {0};
pinfo.id = g->id;
str = pw_properties_get(info, "direction");
pinfo.direction = spa_streq(str, "output") ?
PW_DIRECTION_OUTPUT : PW_DIRECTION_INPUT;
pinfo.props = props ? &props->dict : NULL;
pinfo.change_mask = PW_PORT_CHANGE_MASK_PROPS;
g->info = pw_port_info_update(NULL, &pinfo);
break;
}
case INTERFACE_Node: {
struct pw_node_info ninfo = {0};
ninfo.id = g->id;
ninfo.max_input_ports =
pw_properties_get_uint32(info, "max-input-ports", 0);
ninfo.max_output_ports =
pw_properties_get_uint32(info, "max-output-ports", 0);
ninfo.n_input_ports =
pw_properties_get_uint32(info, "n-input-ports", 0);
ninfo.n_output_ports =
pw_properties_get_uint32(info, "n-output-ports", 0);
str = pw_properties_get(info, "state");
if (spa_streq(str, "running"))
ninfo.state = PW_NODE_STATE_RUNNING;
else if (spa_streq(str, "idle"))
ninfo.state = PW_NODE_STATE_IDLE;
else if (spa_streq(str, "suspended"))
ninfo.state = PW_NODE_STATE_SUSPENDED;
else if (spa_streq(str, "creating"))
ninfo.state = PW_NODE_STATE_CREATING;
else
ninfo.state = PW_NODE_STATE_ERROR;
ninfo.error = pw_properties_get(info, "error");
ninfo.props = props ? &props->dict : NULL;
ninfo.change_mask = PW_NODE_CHANGE_MASK_INPUT_PORTS |
PW_NODE_CHANGE_MASK_OUTPUT_PORTS |
PW_NODE_CHANGE_MASK_STATE |
PW_NODE_CHANGE_MASK_PROPS;
g->info = pw_node_info_update(NULL, &ninfo);
break;
}
case INTERFACE_Link: {
struct pw_link_info linfo = {0};
linfo.id = g->id;
linfo.output_node_id =
pw_properties_get_uint32(info, "output-node-id", 0);
linfo.output_port_id =
pw_properties_get_uint32(info, "output-port-id", 0);
linfo.input_node_id =
pw_properties_get_uint32(info, "input-node-id", 0);
linfo.input_port_id =
pw_properties_get_uint32(info, "input-port-id", 0);
str = pw_properties_get(info, "state");
if (spa_streq(str, "active"))
linfo.state = PW_LINK_STATE_ACTIVE;
else if (spa_streq(str, "paused"))
linfo.state = PW_LINK_STATE_PAUSED;
else if (spa_streq(str, "allocating"))
linfo.state = PW_LINK_STATE_ALLOCATING;
else if (spa_streq(str, "negotiating"))
linfo.state = PW_LINK_STATE_NEGOTIATING;
else if (spa_streq(str, "init"))
linfo.state = PW_LINK_STATE_INIT;
else if (spa_streq(str, "unlinked"))
linfo.state = PW_LINK_STATE_UNLINKED;
else
linfo.state = PW_LINK_STATE_ERROR;
linfo.error = pw_properties_get(info, "error");
linfo.props = props ? &props->dict : NULL;
linfo.change_mask = PW_LINK_CHANGE_MASK_STATE |
PW_LINK_CHANGE_MASK_PROPS;
g->info = pw_link_info_update(NULL, &linfo);
break;
}
case INTERFACE_Client: {
struct pw_client_info cinfo = {0};
cinfo.id = g->id;
cinfo.props = props ? &props->dict : NULL;
cinfo.change_mask = PW_CLIENT_CHANGE_MASK_PROPS;
g->info = pw_client_info_update(NULL, &cinfo);
break;
}
case INTERFACE_Device: {
struct pw_device_info dinfo = {0};
dinfo.id = g->id;
dinfo.props = props ? &props->dict : NULL;
dinfo.change_mask = PW_DEVICE_CHANGE_MASK_PROPS;
g->info = pw_device_info_update(NULL, &dinfo);
break;
}
case INTERFACE_Factory: {
struct pw_factory_info finfo = {0};
finfo.id = g->id;
finfo.name = pw_properties_get(info, "name");
finfo.type = pw_properties_get(info, "type");
finfo.version = pw_properties_get_uint32(info, "version", 0);
finfo.props = props ? &props->dict : NULL;
finfo.change_mask = PW_FACTORY_CHANGE_MASK_PROPS;
g->info = pw_factory_info_update(NULL, &finfo);
break;
}
case INTERFACE_Module: {
struct pw_module_info minfo = {0};
minfo.id = g->id;
minfo.name = pw_properties_get(info, "name");
minfo.filename = pw_properties_get(info, "filename");
minfo.args = pw_properties_get(info, "args");
minfo.props = props ? &props->dict : NULL;
minfo.change_mask = PW_MODULE_CHANGE_MASK_PROPS;
g->info = pw_module_info_update(NULL, &minfo);
break;
}
default:
break;
}
pw_properties_free(info);
pw_properties_free(props);
/* add the global to the list */
spa_list_insert(&data->globals, &g->link);
}
static int get_data_from_json(struct data *data, const char *json_path)
{
int fd, len;
void *json;
struct stat sbuf;
struct spa_json it[2];
const char *value;
if ((fd = open(json_path, O_CLOEXEC | O_RDONLY)) < 0) {
fprintf(stderr, "error opening file '%s': %m\n", json_path);
return -1;
}
if (fstat(fd, &sbuf) < 0) {
fprintf(stderr, "error statting file '%s': %m\n", json_path);
close(fd);
return -1;
}
if ((json = mmap(NULL, sbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0)) == MAP_FAILED) {
fprintf(stderr, "error mmapping file '%s': %m\n", json_path);
close(fd);
return -1;
}
close(fd);
spa_json_init(&it[0], json, sbuf.st_size);
if (spa_json_enter_array(&it[0], &it[1]) <= 0) {
fprintf(stderr, "expected top-level array in JSON file '%s'\n", json_path);
munmap(json, sbuf.st_size);
return -1;
}
while ((len = spa_json_next(&it[1], &value)) > 0 && spa_json_is_object(value, len)) {
struct pw_properties *obj;
obj = pw_properties_new(NULL, NULL);
len = spa_json_container_len(&it[1], value, len);
pw_properties_update_string(obj, value, len);
handle_json_obj(data, obj);
pw_properties_free(obj);
}
munmap(json, sbuf.st_size);
return 0;
}
static void show_help(const char *name, bool error) static void show_help(const char *name, bool error)
{ {
fprintf(error ? stderr : stdout, "%s [options]\n" fprintf(error ? stderr : stdout, "%s [options]\n"
@ -773,7 +1063,8 @@ static void show_help(const char *name, bool error)
" -r, --remote Remote daemon name\n" " -r, --remote Remote daemon name\n"
" -o, --output Output file (Default %s)\n" " -o, --output Output file (Default %s)\n"
" -L, --lr Use left-right rank direction\n" " -L, --lr Use left-right rank direction\n"
" -9, --90 Use orthogonal edges\n", " -9, --90 Use orthogonal edges\n"
" -j, --json Read objects from pw-dump JSON file\n",
name, name,
DEFAULT_DOT_PATH); DEFAULT_DOT_PATH);
} }
@ -781,9 +1072,10 @@ static void show_help(const char *name, bool error)
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
struct data data = { 0 }; struct data data = { 0 };
struct pw_loop *l; struct global *g;
const char *opt_remote = NULL; const char *opt_remote = NULL;
const char *dot_path = DEFAULT_DOT_PATH; const char *dot_path = DEFAULT_DOT_PATH;
const char *json_path = NULL;
static const struct option long_options[] = { static const struct option long_options[] = {
{ "help", no_argument, NULL, 'h' }, { "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' }, { "version", no_argument, NULL, 'V' },
@ -794,13 +1086,14 @@ int main(int argc, char *argv[])
{ "output", required_argument, NULL, 'o' }, { "output", required_argument, NULL, 'o' },
{ "lr", no_argument, NULL, 'L' }, { "lr", no_argument, NULL, 'L' },
{ "90", no_argument, NULL, '9' }, { "90", no_argument, NULL, '9' },
{ "json", required_argument, NULL, 'j' },
{ NULL, 0, NULL, 0} { NULL, 0, NULL, 0}
}; };
int c; int c;
pw_init(&argc, &argv); pw_init(&argc, &argv);
while ((c = getopt_long(argc, argv, "hVasdr:o:L9", long_options, NULL)) != -1) { while ((c = getopt_long(argc, argv, "hVasdr:o:L9j:", long_options, NULL)) != -1) {
switch (c) { switch (c) {
case 'h' : case 'h' :
show_help(argv[0], false); show_help(argv[0], false);
@ -841,63 +1134,35 @@ int main(int argc, char *argv[])
data.dot_orthoedges = true; data.dot_orthoedges = true;
fprintf(stderr, "orthogonal edges enabled\n"); fprintf(stderr, "orthogonal edges enabled\n");
break; break;
case 'j' :
json_path = optarg;
fprintf(stderr, "Using JSON file %s as input\n", json_path);
break;
default: default:
show_help(argv[0], true); show_help(argv[0], true);
return -1; return -1;
} }
} }
data.loop = pw_main_loop_new(NULL); if (!(data.dot_str = dot_str_new()))
if (data.loop == NULL) {
fprintf(stderr, "can't create main loop: %m\n");
return -1;
}
l = pw_main_loop_get_loop(data.loop);
pw_loop_add_signal(l, SIGINT, do_quit, &data);
pw_loop_add_signal(l, SIGTERM, do_quit, &data);
data.context = pw_context_new(l, NULL, 0);
if (data.context == NULL) {
fprintf(stderr, "can't create context: %m\n");
return -1;
}
data.core = pw_context_connect(data.context,
pw_properties_new(
PW_KEY_REMOTE_NAME, opt_remote,
NULL),
0);
if (data.core == NULL) {
fprintf(stderr, "can't connect: %m\n");
return -1;
}
data.dot_str = dot_str_new();
if (data.dot_str == NULL)
return -1; return -1;
spa_list_init(&data.globals); spa_list_init(&data.globals);
pw_core_add_listener(data.core, if (!json_path && get_data_from_pipewire(&data, opt_remote) < 0)
&data.core_listener, return -1;
&core_events, &data); else if (json_path && get_data_from_json(&data, json_path) < 0)
data.registry = pw_core_get_registry(data.core, return -1;
PW_VERSION_REGISTRY, 0);
pw_registry_add_listener(data.registry,
&data.registry_listener,
&registry_events, &data);
pw_main_loop_run(data.loop);
draw_graph(&data, dot_path); draw_graph(&data, dot_path);
dot_str_clear(&data.dot_str); dot_str_clear(&data.dot_str);
spa_hook_remove(&data.registry_listener); spa_list_consume(g, &data.globals, link) {
pw_proxy_destroy((struct pw_proxy*)data.registry); if (g->info && g->info_destroy)
spa_hook_remove(&data.core_listener); g->info_destroy(g->info);
pw_context_destroy(data.context); spa_list_remove(&g->link);
pw_main_loop_destroy(data.loop); free(g);
}
pw_deinit(); pw_deinit();
return 0; return 0;