Merge https://salsa.debian.org/debian/libgit2 into proxmox/bullseye

[libgit2.git] / src / libgit2 / pack-objects.h

diff --git a/src/libgit2/pack-objects.h b/src/libgit2/pack-objects.h
new file mode 100644 (file)
index 0000000..2faa3ec
--- /dev/null
+++ b/src/libgit2/pack-objects.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#ifndef INCLUDE_pack_objects_h__
+#define INCLUDE_pack_objects_h__
+
+#include "common.h"
+
+#include "str.h"
+#include "hash.h"
+#include "oidmap.h"
+#include "netops.h"
+#include "zstream.h"
+#include "pool.h"
+#include "indexer.h"
+
+#include "git2/oid.h"
+#include "git2/pack.h"
+
+#define GIT_PACK_WINDOW 10 /* number of objects to possibly delta against */
+#define GIT_PACK_DEPTH 50 /* max delta depth */
+#define GIT_PACK_DELTA_CACHE_SIZE (256 * 1024 * 1024)
+#define GIT_PACK_DELTA_CACHE_LIMIT 1000
+#define GIT_PACK_BIG_FILE_THRESHOLD (512 * 1024 * 1024)
+
+typedef struct git_pobject {
+       git_oid id;
+       git_object_t type;
+       off64_t offset;
+
+       size_t size;
+
+       unsigned int hash; /* name hint hash */
+
+       struct git_pobject *delta; /* delta base object */
+       struct git_pobject *delta_child; /* deltified objects who bases me */
+       struct git_pobject *delta_sibling; /* other deltified objects
+                                           * who uses the same base as
+                                           * me */
+
+       void *delta_data;
+       size_t delta_size;
+       size_t z_delta_size;
+
+       unsigned int written:1,
+                    recursing:1,
+                    tagged:1,
+                    filled:1;
+} git_pobject;
+
+struct git_packbuilder {
+       git_repository *repo; /* associated repository */
+       git_odb *odb; /* associated object database */
+
+       git_hash_ctx ctx;
+       git_zstream zstream;
+
+       uint32_t nr_objects,
+               nr_deltified,
+               nr_written,
+               nr_remaining;
+
+       size_t nr_alloc;
+
+       git_pobject *object_list;
+
+       git_oidmap *object_ix;
+
+       git_oidmap *walk_objects;
+       git_pool object_pool;
+
+#ifndef GIT_DEPRECATE_HARD
+       git_oid pack_oid; /* hash of written pack */
+#endif
+       char *pack_name; /* name of written pack */
+
+       /* synchronization objects */
+       git_mutex cache_mutex;
+       git_mutex progress_mutex;
+       git_cond progress_cond;
+
+       /* configs */
+       size_t delta_cache_size;
+       size_t max_delta_cache_size;
+       size_t cache_max_small_delta_size;
+       size_t big_file_threshold;
+       size_t window_memory_limit;
+
+       unsigned int nr_threads; /* nr of threads to use */
+
+       git_packbuilder_progress progress_cb;
+       void *progress_cb_payload;
+       double last_progress_report_time; /* the time progress was last reported */
+
+       bool done;
+};
+
+int git_packbuilder__write_buf(git_str *buf, git_packbuilder *pb);
+int git_packbuilder__prepare(git_packbuilder *pb);
+
+
+#endif