ladish/daemon/jack.c

462 lines
9.9 KiB
C

/* -*- Mode: C ; c-basic-offset: 2 -*- */
/*****************************************************************************
*
* DESCRIPTION:
* JACK server monitor and control
*
*****************************************************************************/
#include "jack.h"
#include "jack_proxy.h"
#include "studio.h"
bool
jack_conf_container_create(
struct jack_conf_container ** container_ptr_ptr,
const char * name)
{
struct jack_conf_container * container_ptr;
container_ptr = malloc(sizeof(struct jack_conf_container));
if (container_ptr == NULL)
{
lash_error("malloc() failed to allocate struct jack_conf_container");
goto fail;
}
container_ptr->name = strdup(name);
if (container_ptr->name == NULL)
{
lash_error("strdup() failed to duplicate \"%s\"", name);
goto fail_free;
}
INIT_LIST_HEAD(&container_ptr->children);
container_ptr->children_leafs = false;
*container_ptr_ptr = container_ptr;
return true;
fail_free:
free(container_ptr);
fail:
return false;
}
void
jack_conf_container_destroy(
struct jack_conf_container * container_ptr)
{
struct list_head * node_ptr;
//lash_info("\"%s\" jack_conf_parameter destroy", container_ptr->name);
if (!container_ptr->children_leafs)
{
while (!list_empty(&container_ptr->children))
{
node_ptr = container_ptr->children.next;
list_del(node_ptr);
jack_conf_container_destroy(list_entry(node_ptr, struct jack_conf_container, siblings));
}
}
else
{
while (!list_empty(&container_ptr->children))
{
node_ptr = container_ptr->children.next;
list_del(node_ptr);
jack_conf_parameter_destroy(list_entry(node_ptr, struct jack_conf_parameter, siblings));
}
}
free(container_ptr->name);
free(container_ptr);
}
bool
jack_conf_parameter_create(
struct jack_conf_parameter ** parameter_ptr_ptr,
const char * name)
{
struct jack_conf_parameter * parameter_ptr;
parameter_ptr = malloc(sizeof(struct jack_conf_parameter));
if (parameter_ptr == NULL)
{
lash_error("malloc() failed to allocate struct jack_conf_parameter");
goto fail;
}
parameter_ptr->name = strdup(name);
if (parameter_ptr->name == NULL)
{
lash_error("strdup() failed to duplicate \"%s\"", name);
goto fail_free;
}
*parameter_ptr_ptr = parameter_ptr;
return true;
fail_free:
free(parameter_ptr);
fail:
return false;
}
void
jack_conf_parameter_destroy(
struct jack_conf_parameter * parameter_ptr)
{
#if 0
lash_info("jack_conf_parameter destroy");
switch (parameter_ptr->parameter.type)
{
case jack_boolean:
lash_info("%s value is %s (boolean)", parameter_ptr->name, parameter_ptr->parameter.value.boolean ? "true" : "false");
break;
case jack_string:
lash_info("%s value is %s (string)", parameter_ptr->name, parameter_ptr->parameter.value.string);
break;
case jack_byte:
lash_info("%s value is %u/%c (byte/char)", parameter_ptr->name, parameter_ptr->parameter.value.byte, (char)parameter_ptr->parameter.value.byte);
break;
case jack_uint32:
lash_info("%s value is %u (uint32)", parameter_ptr->name, (unsigned int)parameter_ptr->parameter.value.uint32);
break;
case jack_int32:
lash_info("%s value is %u (int32)", parameter_ptr->name, (signed int)parameter_ptr->parameter.value.int32);
break;
default:
lash_error("unknown jack parameter_ptr->parameter type %d (%s)", (int)parameter_ptr->parameter.type, parameter_ptr->name);
break;
}
#endif
if (parameter_ptr->parameter.type == jack_string)
{
free(parameter_ptr->parameter.value.string);
}
free(parameter_ptr->name);
free(parameter_ptr);
}
bool
jack_init(
void)
{
if (!jack_proxy_init())
{
return false;
}
return true;
}
void
jack_uninit(
void)
{
jack_proxy_uninit();
}
void
on_jack_client_appeared(
uint64_t client_id,
const char * client_name)
{
lash_info("JACK client appeared.");
}
void
on_jack_client_disappeared(
uint64_t client_id)
{
lash_info("JACK client disappeared.");
}
void
on_jack_port_appeared(
uint64_t client_id,
uint64_t port_id,
const char * port_name)
{
lash_info("JACK port appeared.");
}
void
on_jack_port_disappeared(
uint64_t client_id,
uint64_t port_id,
const char * port_name)
{
lash_info("JACK port disappeared.");
}
void
on_jack_ports_connected(
uint64_t client1_id,
uint64_t port1_id,
uint64_t client2_id,
uint64_t port2_id)
{
lash_info("JACK ports connected.");
}
void
on_jack_ports_disconnected(
uint64_t client1_id,
uint64_t port1_id,
uint64_t client2_id,
uint64_t port2_id)
{
lash_info("JACK ports disconnected.");
}
struct conf_callback_context
{
char address[1024];
struct list_head * container_ptr;
struct studio * studio_ptr;
struct jack_conf_container * parent_ptr;
};
#define context_ptr ((struct conf_callback_context *)context)
bool
conf_callback(
void * context,
bool leaf,
const char * address,
char * child)
{
char path[1024];
const char * component;
char * dst;
size_t len;
bool is_set;
struct jack_conf_container * parent_ptr;
struct jack_conf_container * container_ptr;
struct jack_conf_parameter * parameter_ptr;
if (context_ptr->studio_ptr->jack_conf_obsolete)
{
context_ptr->studio_ptr = NULL;
return false;
}
assert(context_ptr->studio_ptr);
parent_ptr = context_ptr->parent_ptr;
dst = path;
component = address;
while (*component != 0)
{
len = strlen(component);
memcpy(dst, component, len);
dst[len] = ':';
component += len + 1;
dst += len + 1;
}
strcpy(dst, child);
/* address always is same buffer as the one supplied through context pointer */
assert(context_ptr->address == address);
dst = (char *)component;
len = strlen(child) + 1;
memcpy(dst, child, len);
dst[len] = 0;
if (leaf)
{
lash_debug("%s (leaf)", path);
if (parent_ptr == NULL)
{
lash_error("jack conf parameters can't appear in root container");
return false;
}
if (!parent_ptr->children_leafs)
{
if (!list_empty(&parent_ptr->children))
{
lash_error("jack conf parameters cant be mixed with containers at same hierarchy level");
return false;
}
parent_ptr->children_leafs = true;
}
if (!jack_conf_parameter_create(&parameter_ptr, child))
{
lash_error("jack_conf_parameter_create() failed");
return false;
}
if (!jack_proxy_get_parameter_value(context_ptr->address, &is_set, &parameter_ptr->parameter))
{
lash_error("cannot get value of %s", path);
return false;
}
if (is_set)
{
switch (parameter_ptr->parameter.type)
{
case jack_boolean:
lash_info("%s value is %s (boolean)", path, parameter_ptr->parameter.value.boolean ? "true" : "false");
break;
case jack_string:
lash_info("%s value is %s (string)", path, parameter_ptr->parameter.value.string);
break;
case jack_byte:
lash_info("%s value is %u/%c (byte/char)", path, parameter_ptr->parameter.value.byte, (char)parameter_ptr->parameter.value.byte);
break;
case jack_uint32:
lash_info("%s value is %u (uint32)", path, (unsigned int)parameter_ptr->parameter.value.uint32);
break;
case jack_int32:
lash_info("%s value is %u (int32)", path, (signed int)parameter_ptr->parameter.value.int32);
break;
default:
lash_error("unknown jack parameter_ptr->parameter type %d (%s)", (int)parameter_ptr->parameter.type, path);
jack_conf_parameter_destroy(parameter_ptr);
return false;
}
list_add_tail(&parameter_ptr->siblings, &parent_ptr->children);
}
else
{
jack_conf_parameter_destroy(parameter_ptr);
}
}
else
{
lash_debug("%s (container)", path);
if (parent_ptr != NULL && parent_ptr->children_leafs)
{
lash_error("jack conf containers cant be mixed with parameters at same hierarchy level");
return false;
}
if (!jack_conf_container_create(&container_ptr, child))
{
lash_error("jack_conf_container_create() failed");
return false;
}
if (parent_ptr == NULL)
{
list_add_tail(&container_ptr->siblings, &context_ptr->studio_ptr->jack_conf);
}
else
{
list_add_tail(&container_ptr->siblings, &parent_ptr->children);
}
context_ptr->parent_ptr = container_ptr;
if (!jack_proxy_read_conf_container(context_ptr->address, context, conf_callback))
{
lash_error("cannot read container %s", path);
return false;
}
context_ptr->parent_ptr = parent_ptr;
}
*dst = 0;
return true;
}
#undef context_ptr
void
on_jack_server_started(
void)
{
struct conf_callback_context context;
lash_info("JACK server start detected.");
if (g_studio_ptr == NULL)
{
if (!studio_create(&g_studio_ptr))
{
lash_error("failed to create studio object");
return;
}
}
context.address[0] = 0;
context.container_ptr = &g_studio_ptr->jack_conf;
context.studio_ptr = g_studio_ptr;
context.parent_ptr = NULL;
if (jack_proxy_read_conf_container(context.address, &context, conf_callback))
{
if (g_studio_ptr == context.studio_ptr &&
!g_studio_ptr->jack_conf_obsolete)
{
g_studio_ptr->jack_conf_stable = true;
lash_info("jack conf successfully retrieved");
return;
}
}
else
{
lash_error("jack_proxy_read_conf_container() failed.");
g_studio_ptr = NULL;
}
studio_destroy(context.studio_ptr);
}
void
on_jack_server_stopped(
void)
{
lash_info("JACK server stop detected.");
if (g_studio_ptr == NULL)
{
return;
}
g_studio_ptr->jack_conf_obsolete = true;
if (!g_studio_ptr->persisted)
{
studio_destroy(g_studio_ptr);
g_studio_ptr = NULL;
return;
}
/* TODO: if user wants, restart jack server and reconnect all jack apps to it */
}
void
on_jack_server_appeared(
void)
{
lash_info("JACK controller appeared.");
}
void
on_jack_server_disappeared(
void)
{
lash_info("JACK controller disappeared.");
}