Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/sound/util_mem.h b/include/sound/util_mem.h
new file mode 100644
index 0000000..9d2cdfa
--- /dev/null
+++ b/include/sound/util_mem.h
@@ -0,0 +1,64 @@
+#ifndef __SOUND_UTIL_MEM_H
+#define __SOUND_UTIL_MEM_H
+/*
+ * Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
+ *
+ * Generic memory management routines for soundcard memory allocation
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+typedef struct snd_util_memblk snd_util_memblk_t;
+typedef struct snd_util_memhdr snd_util_memhdr_t;
+typedef unsigned int snd_util_unit_t;
+
+/*
+ * memory block
+ */
+struct snd_util_memblk {
+ snd_util_unit_t size; /* size of this block */
+ snd_util_unit_t offset; /* zero-offset of this block */
+ struct list_head list; /* link */
+};
+
+#define snd_util_memblk_argptr(blk) (void*)((char*)(blk) + sizeof(snd_util_memblk_t))
+
+/*
+ * memory management information
+ */
+struct snd_util_memhdr {
+ snd_util_unit_t size; /* size of whole data */
+ struct list_head block; /* block linked-list header */
+ int nblocks; /* # of allocated blocks */
+ snd_util_unit_t used; /* used memory size */
+ int block_extra_size; /* extra data size of chunk */
+ struct semaphore block_mutex; /* lock */
+};
+
+/*
+ * prototypes
+ */
+snd_util_memhdr_t *snd_util_memhdr_new(int memsize);
+void snd_util_memhdr_free(snd_util_memhdr_t *hdr);
+snd_util_memblk_t *snd_util_mem_alloc(snd_util_memhdr_t *hdr, int size);
+int snd_util_mem_free(snd_util_memhdr_t *hdr, snd_util_memblk_t *blk);
+int snd_util_mem_avail(snd_util_memhdr_t *hdr);
+
+/* functions without mutex */
+snd_util_memblk_t *__snd_util_mem_alloc(snd_util_memhdr_t *hdr, int size);
+void __snd_util_mem_free(snd_util_memhdr_t *hdr, snd_util_memblk_t *blk);
+snd_util_memblk_t *__snd_util_memblk_new(snd_util_memhdr_t *hdr, snd_util_unit_t units, struct list_head *prev);
+
+#endif /* __SOUND_UTIL_MEM_H */