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-rw-r--r--src/pulsecore/namereg.c214
1 files changed, 214 insertions, 0 deletions
diff --git a/src/pulsecore/namereg.c b/src/pulsecore/namereg.c
new file mode 100644
index 00000000..0f35ed1c
--- /dev/null
+++ b/src/pulsecore/namereg.c
@@ -0,0 +1,214 @@
+/* $Id$ */
+
+/***
+ This file is part of PulseAudio.
+
+ PulseAudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License,
+ or (at your option) any later version.
+
+ PulseAudio is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with PulseAudio; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/autoload.h>
+#include <pulsecore/source.h>
+#include <pulsecore/sink.h>
+#include <pulsecore/core-subscribe.h>
+#include <pulsecore/core-util.h>
+
+#include "namereg.h"
+
+struct namereg_entry {
+ pa_namereg_type_t type;
+ char *name;
+ void *data;
+};
+
+void pa_namereg_free(pa_core *c) {
+ assert(c);
+ if (!c->namereg)
+ return;
+ assert(pa_hashmap_size(c->namereg) == 0);
+ pa_hashmap_free(c->namereg, NULL, NULL);
+}
+
+const char *pa_namereg_register(pa_core *c, const char *name, pa_namereg_type_t type, void *data, int fail) {
+ struct namereg_entry *e;
+ char *n = NULL;
+ int r;
+
+ assert(c && name && data);
+
+ if (!c->namereg) {
+ c->namereg = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
+ assert(c->namereg);
+ }
+
+ if ((e = pa_hashmap_get(c->namereg, name)) && fail)
+ return NULL;
+
+ if (!e)
+ n = pa_xstrdup(name);
+ else {
+ unsigned i;
+ size_t l = strlen(name);
+ n = pa_xmalloc(l+3);
+
+ for (i = 1; i <= 99; i++) {
+ snprintf(n, l+2, "%s%u", name, i);
+
+ if (!(e = pa_hashmap_get(c->namereg, n)))
+ break;
+ }
+
+ if (e) {
+ pa_xfree(n);
+ return NULL;
+ }
+ }
+
+ assert(n);
+ e = pa_xmalloc(sizeof(struct namereg_entry));
+ e->type = type;
+ e->name = n;
+ e->data = data;
+
+ r = pa_hashmap_put(c->namereg, e->name, e);
+ assert (r >= 0);
+
+ return e->name;
+
+}
+
+void pa_namereg_unregister(pa_core *c, const char *name) {
+ struct namereg_entry *e;
+ assert(c && name);
+
+ e = pa_hashmap_remove(c->namereg, name);
+ assert(e);
+
+ pa_xfree(e->name);
+ pa_xfree(e);
+}
+
+void* pa_namereg_get(pa_core *c, const char *name, pa_namereg_type_t type, int autoload) {
+ struct namereg_entry *e;
+ uint32_t idx;
+ assert(c);
+
+ if (!name) {
+ if (type == PA_NAMEREG_SOURCE)
+ name = pa_namereg_get_default_source_name(c);
+ else if (type == PA_NAMEREG_SINK)
+ name = pa_namereg_get_default_sink_name(c);
+ }
+
+ if (!name)
+ return NULL;
+
+ if (c->namereg && (e = pa_hashmap_get(c->namereg, name)))
+ if (e->type == type)
+ return e->data;
+
+ if (pa_atou(name, &idx) < 0) {
+
+ if (autoload) {
+ pa_autoload_request(c, name, type);
+
+ if (c->namereg && (e = pa_hashmap_get(c->namereg, name)))
+ if (e->type == type)
+ return e->data;
+ }
+
+ return NULL;
+ }
+
+ if (type == PA_NAMEREG_SINK)
+ return pa_idxset_get_by_index(c->sinks, idx);
+ else if (type == PA_NAMEREG_SOURCE)
+ return pa_idxset_get_by_index(c->sources, idx);
+ else if (type == PA_NAMEREG_SAMPLE && c->scache)
+ return pa_idxset_get_by_index(c->scache, idx);
+
+ return NULL;
+}
+
+void pa_namereg_set_default(pa_core*c, const char *name, pa_namereg_type_t type) {
+ char **s;
+ assert(c && (type == PA_NAMEREG_SINK || type == PA_NAMEREG_SOURCE));
+
+ s = type == PA_NAMEREG_SINK ? &c->default_sink_name : &c->default_source_name;
+ assert(s);
+
+ if (!name && !*s)
+ return;
+
+ if (name && *s && !strcmp(name, *s))
+ return;
+
+ pa_xfree(*s);
+ *s = pa_xstrdup(name);
+ pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_SERVER|PA_SUBSCRIPTION_EVENT_CHANGE, PA_INVALID_INDEX);
+}
+
+const char *pa_namereg_get_default_sink_name(pa_core *c) {
+ pa_sink *s;
+ assert(c);
+
+ if (c->default_sink_name)
+ return c->default_sink_name;
+
+ if ((s = pa_idxset_first(c->sinks, NULL)))
+ pa_namereg_set_default(c, s->name, PA_NAMEREG_SINK);
+
+ if (c->default_sink_name)
+ return c->default_sink_name;
+
+ return NULL;
+}
+
+const char *pa_namereg_get_default_source_name(pa_core *c) {
+ pa_source *s;
+ uint32_t idx;
+
+ assert(c);
+
+ if (c->default_source_name)
+ return c->default_source_name;
+
+ for (s = pa_idxset_first(c->sources, &idx); s; s = pa_idxset_next(c->sources, &idx))
+ if (!s->monitor_of) {
+ pa_namereg_set_default(c, s->name, PA_NAMEREG_SOURCE);
+ break;
+ }
+
+ if (!c->default_source_name)
+ if ((s = pa_idxset_first(c->sources, NULL)))
+ pa_namereg_set_default(c, s->name, PA_NAMEREG_SOURCE);
+
+ if (c->default_source_name)
+ return c->default_source_name;
+
+ return NULL;
+}