rename src to polyp

[pulseaudio] / polyp / dynarray.c

diff --git a/polyp/dynarray.c b/polyp/dynarray.c
new file mode 100644 (file)
index 0000000..2430696
--- /dev/null
+++ b/polyp/dynarray.c
@@ -0,0 +1,98 @@
+/* $Id$ */
+
+/***
+  This file is part of polypaudio.
+ 
+  polypaudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published
+  by the Free Software Foundation; either version 2 of the License,
+  or (at your option) any later version.
+ 
+  polypaudio 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 General Public License
+  along with polypaudio; 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 <string.h>
+#include <assert.h>
+#include <stdlib.h>
+
+#include "dynarray.h"
+
+struct pa_dynarray {
+    void **data;
+    unsigned n_allocated, n_entries;
+};
+
+struct pa_dynarray* pa_dynarray_new(void) {
+    struct pa_dynarray *a;
+    a = malloc(sizeof(struct pa_dynarray));
+    assert(a);
+    a->data = NULL;
+    a->n_entries = 0;
+    a->n_allocated = 0;
+    return a;
+}
+
+void pa_dynarray_free(struct pa_dynarray* a, void (*func)(void *p, void *userdata), void *userdata) {
+    unsigned i;
+    assert(a);
+
+    if (func)
+        for (i = 0; i < a->n_entries; i++)
+            if (a->data[i])
+                func(a->data[i], userdata);
+
+    free(a->data);
+    free(a);
+}
+
+void pa_dynarray_put(struct pa_dynarray*a, unsigned i, void *p) {
+    assert(a);
+
+    if (i >= a->n_allocated) {
+        unsigned n;
+
+        if (!p)
+            return;
+
+        n = i+100;
+        a->data = realloc(a->data, sizeof(void*)*n);
+        memset(a->data+a->n_allocated, 0, sizeof(void*)*(n-a->n_allocated));
+        a->n_allocated = n;
+    }
+
+    a->data[i] = p;
+
+    if (i >= a->n_entries)
+        a->n_entries = i+1;
+}
+
+unsigned pa_dynarray_append(struct pa_dynarray*a, void *p) {
+    unsigned i = a->n_entries;
+    pa_dynarray_put(a, i, p);
+    return i;
+}
+
+void *pa_dynarray_get(struct pa_dynarray*a, unsigned i) {
+    assert(a);
+    if (i >= a->n_allocated)
+        return NULL;
+    assert(a->data);
+    return a->data[i];
+}
+
+unsigned pa_dynarray_ncontents(struct pa_dynarray*a) {
+    assert(a);
+    return a->n_entries;
+}