Adding upstream version 14.2.upstream/14.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 227 insertions, 0 deletions

diff --git a/src/pulsecore/namereg.c b/src/pulsecore/namereg.c
new file mode 100644
index 0000000..0b73885
--- /dev/null
+++ b/src/pulsecore/namereg.c
@@ -0,0 +1,227 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2004-2006 Lennart Poettering
+
+  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 2.1 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, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/source.h>
+#include <pulsecore/sink.h>
+#include <pulsecore/core-subscribe.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/macro.h>
+
+#include "namereg.h"
+
+struct namereg_entry {
+    pa_namereg_type_t type;
+    char *name;
+    void *data;
+};
+
+static bool is_valid_char(char c) {
+    return
+        (c >= 'a' && c <= 'z') ||
+        (c >= 'A' && c <= 'Z') ||
+        (c >= '0' && c <= '9') ||
+        c == '.' ||
+        c == '-' ||
+        c == '_';
+}
+
+bool pa_namereg_is_valid_name(const char *name) {
+    const char *c;
+
+    pa_assert(name);
+
+    if (*name == 0)
+        return false;
+
+    for (c = name; *c && (c-name < PA_NAME_MAX); c++)
+        if (!is_valid_char(*c))
+            return false;
+
+    if (*c)
+        return false;
+
+    return true;
+}
+
+bool pa_namereg_is_valid_name_or_wildcard(const char *name, pa_namereg_type_t type) {
+
+    pa_assert(name);
+
+    if (pa_namereg_is_valid_name(name))
+        return true;
+
+    if (type == PA_NAMEREG_SINK &&
+        pa_streq(name, "@DEFAULT_SINK@"))
+        return true;
+
+    if (type == PA_NAMEREG_SOURCE &&
+        (pa_streq(name, "@DEFAULT_SOURCE@") ||
+         pa_streq(name, "@DEFAULT_MONITOR@")))
+        return true;
+
+    return false;
+}
+
+char* pa_namereg_make_valid_name(const char *name) {
+    const char *a;
+    char *b, *n;
+
+    if (*name == 0)
+        return NULL;
+
+    n = pa_xnew(char, strlen(name)+1);
+
+    for (a = name, b = n; *a && (a-name < PA_NAME_MAX); a++, b++)
+        *b = (char) (is_valid_char(*a) ? *a : '_');
+
+    *b = 0;
+
+    return n;
+}
+
+const char *pa_namereg_register(pa_core *c, const char *name, pa_namereg_type_t type, void *data, bool fail) {
+    struct namereg_entry *e;
+    char *n = NULL;
+
+    pa_assert(c);
+    pa_assert(name);
+    pa_assert(data);
+
+    if (!*name)
+        return NULL;
+
+    if ((type == PA_NAMEREG_SINK || type == PA_NAMEREG_SOURCE || type == PA_NAMEREG_CARD) &&
+        !pa_namereg_is_valid_name(name)) {
+
+        if (fail)
+            return NULL;
+
+        if (!(name = n = pa_namereg_make_valid_name(name)))
+            return NULL;
+    }
+
+    if ((e = pa_hashmap_get(c->namereg, name)) && fail) {
+        pa_xfree(n);
+        return NULL;
+    }
+
+    if (e) {
+        unsigned i;
+        size_t l = strlen(name);
+        char *k;
+
+        if (l+4 > PA_NAME_MAX) {
+            pa_xfree(n);
+            return NULL;
+        }
+
+        k = pa_xmalloc(l+4);
+
+        for (i = 2; i <= 99; i++) {
+            pa_snprintf(k, l+4, "%s.%u", name, i);
+
+            if (!(e = pa_hashmap_get(c->namereg, k)))
+                break;
+        }
+
+        if (e) {
+            pa_xfree(n);
+            pa_xfree(k);
+            return NULL;
+        }
+
+        pa_xfree(n);
+        n = k;
+    }
+
+    e = pa_xnew(struct namereg_entry, 1);
+    e->type = type;
+    e->name = n ? n : pa_xstrdup(name);
+    e->data = data;
+
+    pa_assert_se(pa_hashmap_put(c->namereg, e->name, e) >= 0);
+
+    return e->name;
+}
+
+void pa_namereg_unregister(pa_core *c, const char *name) {
+    struct namereg_entry *e;
+
+    pa_assert(c);
+    pa_assert(name);
+
+    pa_assert_se(e = pa_hashmap_remove(c->namereg, name));
+    pa_xfree(e->name);
+    pa_xfree(e);
+}
+
+void* pa_namereg_get(pa_core *c, const char *name, pa_namereg_type_t type) {
+    struct namereg_entry *e;
+    uint32_t idx;
+    pa_assert(c);
+
+    if (type == PA_NAMEREG_SOURCE && (!name || pa_streq(name, "@DEFAULT_SOURCE@"))) {
+        return c->default_source;
+
+    } else if (type == PA_NAMEREG_SINK && (!name || pa_streq(name, "@DEFAULT_SINK@"))) {
+        return c->default_sink;
+
+    } else if (type == PA_NAMEREG_SOURCE && name && pa_streq(name, "@DEFAULT_MONITOR@")) {
+        if (c->default_sink)
+            return c->default_sink->monitor_source;
+        else
+            return NULL;
+    }
+
+    if (!name)
+        return NULL;
+
+    if ((type == PA_NAMEREG_SINK || type == PA_NAMEREG_SOURCE || type == PA_NAMEREG_CARD) &&
+        !pa_namereg_is_valid_name(name))
+        return NULL;
+
+    if ((e = pa_hashmap_get(c->namereg, name)))
+        if (e->type == type)
+            return e->data;
+
+    if (pa_atou(name, &idx) < 0)
+        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);
+    else if (type == PA_NAMEREG_CARD)
+        return pa_idxset_get_by_index(c->cards, idx);
+
+    return NULL;
+}