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From: "Han-Wen Nienhuys via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: Han-Wen Nienhuys <hanwenn@gmail.com>,
	Han-Wen Nienhuys <hanwen@google.com>
Subject: [PATCH v2 09/25] reftable: reading/writing blocks
Date: Mon, 16 Aug 2021 20:17:00 +0000	[thread overview]
Message-ID: <e4da0a2ef370c5559543294e8b4e6142613e6bf2.1629145036.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.1054.v2.git.git.1629145036.gitgitgadget@gmail.com>

From: Han-Wen Nienhuys <hanwen@google.com>

The reftable format is structured as a sequence of block. Within a block,
records are prefix compressed, with an index of offsets for fully expand keys to
enable binary search within blocks.

This commit provides the logic to read and write these blocks.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
---
 Makefile                 |   2 +
 reftable/block.c         | 448 +++++++++++++++++++++++++++++++++++++++
 reftable/block.h         | 127 +++++++++++
 reftable/block_test.c    | 121 +++++++++++
 t/helper/test-reftable.c |   1 +
 5 files changed, 699 insertions(+)
 create mode 100644 reftable/block.c
 create mode 100644 reftable/block.h
 create mode 100644 reftable/block_test.c

diff --git a/Makefile b/Makefile
index 16c883978d4..1d396c87be9 100644
--- a/Makefile
+++ b/Makefile
@@ -2454,10 +2454,12 @@ xdiff-objs: $(XDIFF_OBJS)
 
 REFTABLE_OBJS += reftable/basics.o
 REFTABLE_OBJS += reftable/error.o
+REFTABLE_OBJS += reftable/block.o
 REFTABLE_OBJS += reftable/blocksource.o
 REFTABLE_OBJS += reftable/publicbasics.o
 REFTABLE_OBJS += reftable/record.o
 
+REFTABLE_TEST_OBJS += reftable/block_test.o
 REFTABLE_TEST_OBJS += reftable/record_test.o
 REFTABLE_TEST_OBJS += reftable/test_framework.o
 REFTABLE_TEST_OBJS += reftable/basics_test.o
diff --git a/reftable/block.c b/reftable/block.c
new file mode 100644
index 00000000000..eb5268dd3a6
--- /dev/null
+++ b/reftable/block.c
@@ -0,0 +1,448 @@
+/*
+Copyright 2020 Google LLC
+
+Use of this source code is governed by a BSD-style
+license that can be found in the LICENSE file or at
+https://developers.google.com/open-source/licenses/bsd
+*/
+
+#include "block.h"
+
+#include "blocksource.h"
+#include "constants.h"
+#include "record.h"
+#include "reftable-error.h"
+#include "system.h"
+#include <zlib.h>
+
+#ifdef NO_UNCOMPRESS2
+/*
+ * This is uncompress2, which is only available in zlib >= 1.2.9
+ * (released as of early 2017)
+ */
+int uncompress2(Bytef *dest, uLongf *destLen, const Bytef *source,
+		uLong *sourceLen);
+#endif
+
+int header_size(int version)
+{
+	switch (version) {
+	case 1:
+		return 24;
+	case 2:
+		return 28;
+	}
+	abort();
+}
+
+int footer_size(int version)
+{
+	switch (version) {
+	case 1:
+		return 68;
+	case 2:
+		return 72;
+	}
+	abort();
+}
+
+static int block_writer_register_restart(struct block_writer *w, int n,
+					 int is_restart, struct strbuf *key)
+{
+	int rlen = w->restart_len;
+	if (rlen >= MAX_RESTARTS) {
+		is_restart = 0;
+	}
+
+	if (is_restart) {
+		rlen++;
+	}
+	if (2 + 3 * rlen + n > w->block_size - w->next)
+		return -1;
+	if (is_restart) {
+		if (w->restart_len == w->restart_cap) {
+			w->restart_cap = w->restart_cap * 2 + 1;
+			w->restarts = reftable_realloc(
+				w->restarts, sizeof(uint32_t) * w->restart_cap);
+		}
+
+		w->restarts[w->restart_len++] = w->next;
+	}
+
+	w->next += n;
+
+	strbuf_reset(&w->last_key);
+	strbuf_addbuf(&w->last_key, key);
+	w->entries++;
+	return 0;
+}
+
+void block_writer_init(struct block_writer *bw, uint8_t typ, uint8_t *buf,
+		       uint32_t block_size, uint32_t header_off, int hash_size)
+{
+	bw->buf = buf;
+	bw->hash_size = hash_size;
+	bw->block_size = block_size;
+	bw->header_off = header_off;
+	bw->buf[header_off] = typ;
+	bw->next = header_off + 4;
+	bw->restart_interval = 16;
+	bw->entries = 0;
+	bw->restart_len = 0;
+	bw->last_key.len = 0;
+}
+
+uint8_t block_writer_type(struct block_writer *bw)
+{
+	return bw->buf[bw->header_off];
+}
+
+/* adds the reftable_record to the block. Returns -1 if it does not fit, 0 on
+   success */
+int block_writer_add(struct block_writer *w, struct reftable_record *rec)
+{
+	struct strbuf empty = STRBUF_INIT;
+	struct strbuf last =
+		w->entries % w->restart_interval == 0 ? empty : w->last_key;
+	struct string_view out = {
+		.buf = w->buf + w->next,
+		.len = w->block_size - w->next,
+	};
+
+	struct string_view start = out;
+
+	int is_restart = 0;
+	struct strbuf key = STRBUF_INIT;
+	int n = 0;
+
+	reftable_record_key(rec, &key);
+	n = reftable_encode_key(&is_restart, out, last, key,
+				reftable_record_val_type(rec));
+	if (n < 0)
+		goto done;
+	string_view_consume(&out, n);
+
+	n = reftable_record_encode(rec, out, w->hash_size);
+	if (n < 0)
+		goto done;
+	string_view_consume(&out, n);
+
+	if (block_writer_register_restart(w, start.len - out.len, is_restart,
+					  &key) < 0)
+		goto done;
+
+	strbuf_release(&key);
+	return 0;
+
+done:
+	strbuf_release(&key);
+	return -1;
+}
+
+int block_writer_finish(struct block_writer *w)
+{
+	int i = 0;
+	for (i = 0; i < w->restart_len; i++) {
+		put_be24(w->buf + w->next, w->restarts[i]);
+		w->next += 3;
+	}
+
+	put_be16(w->buf + w->next, w->restart_len);
+	w->next += 2;
+	put_be24(w->buf + 1 + w->header_off, w->next);
+
+	if (block_writer_type(w) == BLOCK_TYPE_LOG) {
+		int block_header_skip = 4 + w->header_off;
+		uint8_t *compressed = NULL;
+		int zresult = 0;
+		uLongf src_len = w->next - block_header_skip;
+		size_t dest_cap = src_len;
+
+		compressed = reftable_malloc(dest_cap);
+		while (1) {
+			uLongf out_dest_len = dest_cap;
+
+			zresult = compress2(compressed, &out_dest_len,
+					    w->buf + block_header_skip, src_len,
+					    9);
+			if (zresult == Z_BUF_ERROR) {
+				dest_cap *= 2;
+				compressed =
+					reftable_realloc(compressed, dest_cap);
+				continue;
+			}
+
+			if (Z_OK != zresult) {
+				reftable_free(compressed);
+				return REFTABLE_ZLIB_ERROR;
+			}
+
+			memcpy(w->buf + block_header_skip, compressed,
+			       out_dest_len);
+			w->next = out_dest_len + block_header_skip;
+			reftable_free(compressed);
+			break;
+		}
+	}
+	return w->next;
+}
+
+uint8_t block_reader_type(struct block_reader *r)
+{
+	return r->block.data[r->header_off];
+}
+
+int block_reader_init(struct block_reader *br, struct reftable_block *block,
+		      uint32_t header_off, uint32_t table_block_size,
+		      int hash_size)
+{
+	uint32_t full_block_size = table_block_size;
+	uint8_t typ = block->data[header_off];
+	uint32_t sz = get_be24(block->data + header_off + 1);
+
+	uint16_t restart_count = 0;
+	uint32_t restart_start = 0;
+	uint8_t *restart_bytes = NULL;
+
+	if (!reftable_is_block_type(typ))
+		return REFTABLE_FORMAT_ERROR;
+
+	if (typ == BLOCK_TYPE_LOG) {
+		int block_header_skip = 4 + header_off;
+		uLongf dst_len = sz - block_header_skip; /* total size of dest
+							    buffer. */
+		uLongf src_len = block->len - block_header_skip;
+		/* Log blocks specify the *uncompressed* size in their header.
+		 */
+		uint8_t *uncompressed = reftable_malloc(sz);
+
+		/* Copy over the block header verbatim. It's not compressed. */
+		memcpy(uncompressed, block->data, block_header_skip);
+
+		/* Uncompress */
+		if (Z_OK !=
+		    uncompress2(uncompressed + block_header_skip, &dst_len,
+				block->data + block_header_skip, &src_len)) {
+			reftable_free(uncompressed);
+			return REFTABLE_ZLIB_ERROR;
+		}
+
+		if (dst_len + block_header_skip != sz)
+			return REFTABLE_FORMAT_ERROR;
+
+		/* We're done with the input data. */
+		reftable_block_done(block);
+		block->data = uncompressed;
+		block->len = sz;
+		block->source = malloc_block_source();
+		full_block_size = src_len + block_header_skip;
+	} else if (full_block_size == 0) {
+		full_block_size = sz;
+	} else if (sz < full_block_size && sz < block->len &&
+		   block->data[sz] != 0) {
+		/* If the block is smaller than the full block size, it is
+		   padded (data followed by '\0') or the next block is
+		   unaligned. */
+		full_block_size = sz;
+	}
+
+	restart_count = get_be16(block->data + sz - 2);
+	restart_start = sz - 2 - 3 * restart_count;
+	restart_bytes = block->data + restart_start;
+
+	/* transfer ownership. */
+	br->block = *block;
+	block->data = NULL;
+	block->len = 0;
+
+	br->hash_size = hash_size;
+	br->block_len = restart_start;
+	br->full_block_size = full_block_size;
+	br->header_off = header_off;
+	br->restart_count = restart_count;
+	br->restart_bytes = restart_bytes;
+
+	return 0;
+}
+
+static uint32_t block_reader_restart_offset(struct block_reader *br, int i)
+{
+	return get_be24(br->restart_bytes + 3 * i);
+}
+
+void block_reader_start(struct block_reader *br, struct block_iter *it)
+{
+	it->br = br;
+	strbuf_reset(&it->last_key);
+	it->next_off = br->header_off + 4;
+}
+
+struct restart_find_args {
+	int error;
+	struct strbuf key;
+	struct block_reader *r;
+};
+
+static int restart_key_less(size_t idx, void *args)
+{
+	struct restart_find_args *a = args;
+	uint32_t off = block_reader_restart_offset(a->r, idx);
+	struct string_view in = {
+		.buf = a->r->block.data + off,
+		.len = a->r->block_len - off,
+	};
+
+	/* the restart key is verbatim in the block, so this could avoid the
+	   alloc for decoding the key */
+	struct strbuf rkey = STRBUF_INIT;
+	struct strbuf last_key = STRBUF_INIT;
+	uint8_t unused_extra;
+	int n = reftable_decode_key(&rkey, &unused_extra, last_key, in);
+	int result;
+	if (n < 0) {
+		a->error = 1;
+		return -1;
+	}
+
+	result = strbuf_cmp(&a->key, &rkey);
+	strbuf_release(&rkey);
+	return result;
+}
+
+void block_iter_copy_from(struct block_iter *dest, struct block_iter *src)
+{
+	dest->br = src->br;
+	dest->next_off = src->next_off;
+	strbuf_reset(&dest->last_key);
+	strbuf_addbuf(&dest->last_key, &src->last_key);
+}
+
+int block_iter_next(struct block_iter *it, struct reftable_record *rec)
+{
+	struct string_view in = {
+		.buf = it->br->block.data + it->next_off,
+		.len = it->br->block_len - it->next_off,
+	};
+	struct string_view start = in;
+	struct strbuf key = STRBUF_INIT;
+	uint8_t extra = 0;
+	int n = 0;
+
+	if (it->next_off >= it->br->block_len)
+		return 1;
+
+	n = reftable_decode_key(&key, &extra, it->last_key, in);
+	if (n < 0)
+		return -1;
+
+	string_view_consume(&in, n);
+	n = reftable_record_decode(rec, key, extra, in, it->br->hash_size);
+	if (n < 0)
+		return -1;
+	string_view_consume(&in, n);
+
+	strbuf_reset(&it->last_key);
+	strbuf_addbuf(&it->last_key, &key);
+	it->next_off += start.len - in.len;
+	strbuf_release(&key);
+	return 0;
+}
+
+int block_reader_first_key(struct block_reader *br, struct strbuf *key)
+{
+	struct strbuf empty = STRBUF_INIT;
+	int off = br->header_off + 4;
+	struct string_view in = {
+		.buf = br->block.data + off,
+		.len = br->block_len - off,
+	};
+
+	uint8_t extra = 0;
+	int n = reftable_decode_key(key, &extra, empty, in);
+	if (n < 0)
+		return n;
+
+	return 0;
+}
+
+int block_iter_seek(struct block_iter *it, struct strbuf *want)
+{
+	return block_reader_seek(it->br, it, want);
+}
+
+void block_iter_close(struct block_iter *it)
+{
+	strbuf_release(&it->last_key);
+}
+
+int block_reader_seek(struct block_reader *br, struct block_iter *it,
+		      struct strbuf *want)
+{
+	struct restart_find_args args = {
+		.key = *want,
+		.r = br,
+	};
+	struct reftable_record rec = reftable_new_record(block_reader_type(br));
+	struct strbuf key = STRBUF_INIT;
+	int err = 0;
+	struct block_iter next = {
+		.last_key = STRBUF_INIT,
+	};
+
+	int i = binsearch(br->restart_count, &restart_key_less, &args);
+	if (args.error) {
+		err = REFTABLE_FORMAT_ERROR;
+		goto done;
+	}
+
+	it->br = br;
+	if (i > 0) {
+		i--;
+		it->next_off = block_reader_restart_offset(br, i);
+	} else {
+		it->next_off = br->header_off + 4;
+	}
+
+	/* We're looking for the last entry less/equal than the wanted key, so
+	   we have to go one entry too far and then back up.
+	*/
+	while (1) {
+		block_iter_copy_from(&next, it);
+		err = block_iter_next(&next, &rec);
+		if (err < 0)
+			goto done;
+
+		reftable_record_key(&rec, &key);
+		if (err > 0 || strbuf_cmp(&key, want) >= 0) {
+			err = 0;
+			goto done;
+		}
+
+		block_iter_copy_from(it, &next);
+	}
+
+done:
+	strbuf_release(&key);
+	strbuf_release(&next.last_key);
+	reftable_record_destroy(&rec);
+
+	return err;
+}
+
+void block_writer_release(struct block_writer *bw)
+{
+	FREE_AND_NULL(bw->restarts);
+	strbuf_release(&bw->last_key);
+	/* the block is not owned. */
+}
+
+void reftable_block_done(struct reftable_block *blockp)
+{
+	struct reftable_block_source source = blockp->source;
+	if (blockp && source.ops)
+		source.ops->return_block(source.arg, blockp);
+	blockp->data = NULL;
+	blockp->len = 0;
+	blockp->source.ops = NULL;
+	blockp->source.arg = NULL;
+}
diff --git a/reftable/block.h b/reftable/block.h
new file mode 100644
index 00000000000..e207706a644
--- /dev/null
+++ b/reftable/block.h
@@ -0,0 +1,127 @@
+/*
+Copyright 2020 Google LLC
+
+Use of this source code is governed by a BSD-style
+license that can be found in the LICENSE file or at
+https://developers.google.com/open-source/licenses/bsd
+*/
+
+#ifndef BLOCK_H
+#define BLOCK_H
+
+#include "basics.h"
+#include "record.h"
+#include "reftable-blocksource.h"
+
+/*
+ * Writes reftable blocks. The block_writer is reused across blocks to minimize
+ * allocation overhead.
+ */
+struct block_writer {
+	uint8_t *buf;
+	uint32_t block_size;
+
+	/* Offset ofof the global header. Nonzero in the first block only. */
+	uint32_t header_off;
+
+	/* How often to restart keys. */
+	int restart_interval;
+	int hash_size;
+
+	/* Offset of next uint8_t to write. */
+	uint32_t next;
+	uint32_t *restarts;
+	uint32_t restart_len;
+	uint32_t restart_cap;
+
+	struct strbuf last_key;
+	int entries;
+};
+
+/*
+ * initializes the blockwriter to write `typ` entries, using `buf` as temporary
+ * storage. `buf` is not owned by the block_writer. */
+void block_writer_init(struct block_writer *bw, uint8_t typ, uint8_t *buf,
+		       uint32_t block_size, uint32_t header_off, int hash_size);
+
+/* returns the block type (eg. 'r' for ref records. */
+uint8_t block_writer_type(struct block_writer *bw);
+
+/* appends the record, or -1 if it doesn't fit. */
+int block_writer_add(struct block_writer *w, struct reftable_record *rec);
+
+/* appends the key restarts, and compress the block if necessary. */
+int block_writer_finish(struct block_writer *w);
+
+/* clears out internally allocated block_writer members. */
+void block_writer_release(struct block_writer *bw);
+
+/* Read a block. */
+struct block_reader {
+	/* offset of the block header; nonzero for the first block in a
+	 * reftable. */
+	uint32_t header_off;
+
+	/* the memory block */
+	struct reftable_block block;
+	int hash_size;
+
+	/* size of the data, excluding restart data. */
+	uint32_t block_len;
+	uint8_t *restart_bytes;
+	uint16_t restart_count;
+
+	/* size of the data in the file. For log blocks, this is the compressed
+	 * size. */
+	uint32_t full_block_size;
+};
+
+/* Iterate over entries in a block */
+struct block_iter {
+	/* offset within the block of the next entry to read. */
+	uint32_t next_off;
+	struct block_reader *br;
+
+	/* key for last entry we read. */
+	struct strbuf last_key;
+};
+
+/* initializes a block reader. */
+int block_reader_init(struct block_reader *br, struct reftable_block *bl,
+		      uint32_t header_off, uint32_t table_block_size,
+		      int hash_size);
+
+/* Position `it` at start of the block */
+void block_reader_start(struct block_reader *br, struct block_iter *it);
+
+/* Position `it` to the `want` key in the block */
+int block_reader_seek(struct block_reader *br, struct block_iter *it,
+		      struct strbuf *want);
+
+/* Returns the block type (eg. 'r' for refs) */
+uint8_t block_reader_type(struct block_reader *r);
+
+/* Decodes the first key in the block */
+int block_reader_first_key(struct block_reader *br, struct strbuf *key);
+
+void block_iter_copy_from(struct block_iter *dest, struct block_iter *src);
+
+/* return < 0 for error, 0 for OK, > 0 for EOF. */
+int block_iter_next(struct block_iter *it, struct reftable_record *rec);
+
+/* Seek to `want` with in the block pointed to by `it` */
+int block_iter_seek(struct block_iter *it, struct strbuf *want);
+
+/* deallocate memory for `it`. The block reader and its block is left intact. */
+void block_iter_close(struct block_iter *it);
+
+/* size of file header, depending on format version */
+int header_size(int version);
+
+/* size of file footer, depending on format version */
+int footer_size(int version);
+
+/* returns a block to its source. */
+void reftable_block_done(struct reftable_block *ret);
+
+#endif
diff --git a/reftable/block_test.c b/reftable/block_test.c
new file mode 100644
index 00000000000..c3d35eedb98
--- /dev/null
+++ b/reftable/block_test.c
@@ -0,0 +1,121 @@
+/*
+Copyright 2020 Google LLC
+
+Use of this source code is governed by a BSD-style
+license that can be found in the LICENSE file or at
+https://developers.google.com/open-source/licenses/bsd
+*/
+
+#include "block.h"
+
+#include "system.h"
+
+#include "blocksource.h"
+#include "basics.h"
+#include "constants.h"
+#include "record.h"
+#include "test_framework.h"
+#include "reftable-tests.h"
+
+static void test_block_read_write(void)
+{
+	const int header_off = 21; /* random */
+	char *names[30];
+	const int N = ARRAY_SIZE(names);
+	const int block_size = 1024;
+	struct reftable_block block = { NULL };
+	struct block_writer bw = {
+		.last_key = STRBUF_INIT,
+	};
+	struct reftable_ref_record ref = { NULL };
+	struct reftable_record rec = { NULL };
+	int i = 0;
+	int n;
+	struct block_reader br = { 0 };
+	struct block_iter it = { .last_key = STRBUF_INIT };
+	int j = 0;
+	struct strbuf want = STRBUF_INIT;
+
+	block.data = reftable_calloc(block_size);
+	block.len = block_size;
+	block.source = malloc_block_source();
+	block_writer_init(&bw, BLOCK_TYPE_REF, block.data, block_size,
+			  header_off, hash_size(GIT_SHA1_FORMAT_ID));
+	reftable_record_from_ref(&rec, &ref);
+
+	for (i = 0; i < N; i++) {
+		char name[100];
+		uint8_t hash[GIT_SHA1_RAWSZ];
+		snprintf(name, sizeof(name), "branch%02d", i);
+		memset(hash, i, sizeof(hash));
+
+		ref.refname = name;
+		ref.value_type = REFTABLE_REF_VAL1;
+		ref.value.val1 = hash;
+
+		names[i] = xstrdup(name);
+		n = block_writer_add(&bw, &rec);
+		ref.refname = NULL;
+		ref.value_type = REFTABLE_REF_DELETION;
+		EXPECT(n == 0);
+	}
+
+	n = block_writer_finish(&bw);
+	EXPECT(n > 0);
+
+	block_writer_release(&bw);
+
+	block_reader_init(&br, &block, header_off, block_size, GIT_SHA1_RAWSZ);
+
+	block_reader_start(&br, &it);
+
+	while (1) {
+		int r = block_iter_next(&it, &rec);
+		EXPECT(r >= 0);
+		if (r > 0) {
+			break;
+		}
+		EXPECT_STREQ(names[j], ref.refname);
+		j++;
+	}
+
+	reftable_record_release(&rec);
+	block_iter_close(&it);
+
+	for (i = 0; i < N; i++) {
+		struct block_iter it = { .last_key = STRBUF_INIT };
+		strbuf_reset(&want);
+		strbuf_addstr(&want, names[i]);
+
+		n = block_reader_seek(&br, &it, &want);
+		EXPECT(n == 0);
+
+		n = block_iter_next(&it, &rec);
+		EXPECT(n == 0);
+
+		EXPECT_STREQ(names[i], ref.refname);
+
+		want.len--;
+		n = block_reader_seek(&br, &it, &want);
+		EXPECT(n == 0);
+
+		n = block_iter_next(&it, &rec);
+		EXPECT(n == 0);
+		EXPECT_STREQ(names[10 * (i / 10)], ref.refname);
+
+		block_iter_close(&it);
+	}
+
+	reftable_record_release(&rec);
+	reftable_block_done(&br.block);
+	strbuf_release(&want);
+	for (i = 0; i < N; i++) {
+		reftable_free(names[i]);
+	}
+}
+
+int block_test_main(int argc, const char *argv[])
+{
+	RUN_TEST(test_block_read_write);
+	return 0;
+}
diff --git a/t/helper/test-reftable.c b/t/helper/test-reftable.c
index 09d4b83ef9b..c9deeaf08c7 100644
--- a/t/helper/test-reftable.c
+++ b/t/helper/test-reftable.c
@@ -4,6 +4,7 @@
 int cmd__reftable(int argc, const char **argv)
 {
 	basics_test_main(argc, argv);
+	block_test_main(argc, argv);
 	record_test_main(argc, argv);
 	return 0;
 }
-- 
gitgitgadget


  parent reply	other threads:[~2021-08-16 20:18 UTC|newest]

Thread overview: 132+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-20 17:04 [PATCH 00/26] Support reftable ref backend for Git Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 01/26] hash.h: provide constants for the hash IDs Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 02/26] init-db: set the_repository->hash_algo early on Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 03/26] reftable: RFC: add LICENSE Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 04/26] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 05/26] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 06/26] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 07/26] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 08/26] Provide zlib's uncompress2 from compat/zlib-compat.c Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 09/26] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 10/26] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 11/26] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 12/26] reftable: generic interface to tables Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 13/26] reftable: read reftable files Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 14/26] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 15/26] reftable: add a heap-based priority queue for reftable records Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 16/26] reftable: add merged table view Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 17/26] reftable: implement refname validation Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 18/26] reftable: implement stack, a mutable database of reftable files Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 19/26] reftable: add dump utility Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 20/26] refs: RFC: Reftable support for git-core Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 21/26] git-prompt: prepare for reftable refs backend SZEDER Gábor via GitGitGadget
2021-07-20 17:04 ` [PATCH 22/26] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 23/26] t1301: document what needs to be done for reftable Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 24/26] t1401,t2011: parameterize HEAD.lock for REFFILES Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 25/26] t1404: annotate test cases with REFFILES Han-Wen Nienhuys via GitGitGadget
2021-07-20 17:04 ` [PATCH 26/26] t7004: avoid direct filesystem access Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:16 ` [PATCH v2 00/25] Support reftable ref backend for Git Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:16   ` [PATCH v2 01/25] hash.h: provide constants for the hash IDs Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:16   ` [PATCH v2 02/25] init-db: set the_repository->hash_algo early on Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:16   ` [PATCH v2 03/25] reftable: RFC: add LICENSE Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:16   ` [PATCH v2 04/25] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:16   ` [PATCH v2 05/25] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:16   ` [PATCH v2 06/25] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:16   ` [PATCH v2 07/25] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2021-08-16 21:54     ` Carlo Marcelo Arenas Belón
2021-08-17 13:44       ` Han-Wen Nienhuys
2021-08-16 20:16   ` [PATCH v2 08/25] Provide zlib's uncompress2 from compat/zlib-compat.c Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` Han-Wen Nienhuys via GitGitGadget [this message]
2021-08-16 20:17   ` [PATCH v2 10/25] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 11/25] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 12/25] reftable: generic interface to tables Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 13/25] reftable: read reftable files Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 14/25] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 15/25] reftable: add a heap-based priority queue for reftable records Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 16/25] reftable: add merged table view Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 17/25] reftable: implement refname validation Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 18/25] reftable: implement stack, a mutable database of reftable files Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 19/25] reftable: add dump utility Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 20/25] refs: RFC: Reftable support for git-core Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 21/25] git-prompt: prepare for reftable refs backend SZEDER Gábor via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 22/25] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 23/25] t1301: document what needs to be done for reftable Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 24/25] t1401,t2011: parameterize HEAD.lock for REFFILES Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:17   ` [PATCH v2 25/25] t1404: annotate test cases with REFFILES Han-Wen Nienhuys via GitGitGadget
2021-08-16 20:48   ` [PATCH v2 00/25] Support reftable ref backend for Git Junio C Hamano
2021-08-17 16:38     ` Han-Wen Nienhuys
2021-08-17 13:39   ` [PATCH v3 " Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 01/25] hash.h: provide constants for the hash IDs Han-Wen Nienhuys via GitGitGadget
2021-08-23  9:47       ` Ævar Arnfjörð Bjarmason
2021-08-17 13:39     ` [PATCH v3 02/25] init-db: set the_repository->hash_algo early on Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 03/25] reftable: RFC: add LICENSE Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 04/25] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 05/25] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 06/25] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 07/25] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 08/25] Provide zlib's uncompress2 from compat/zlib-compat.c Han-Wen Nienhuys via GitGitGadget
2021-08-18 10:14       ` Philip Oakley
2021-08-18 10:39         ` Han-Wen Nienhuys
2021-08-18 11:53           ` Philip Oakley
2021-08-17 13:39     ` [PATCH v3 09/25] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 10/25] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 11/25] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 12/25] reftable: generic interface to tables Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 13/25] reftable: read reftable files Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 14/25] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 15/25] reftable: add a heap-based priority queue for reftable records Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 16/25] reftable: add merged table view Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:39     ` [PATCH v3 17/25] reftable: implement refname validation Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:40     ` [PATCH v3 18/25] reftable: implement stack, a mutable database of reftable files Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:40     ` [PATCH v3 19/25] reftable: add dump utility Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:40     ` [PATCH v3 20/25] refs: RFC: Reftable support for git-core Han-Wen Nienhuys via GitGitGadget
2021-08-23  9:50       ` Ævar Arnfjörð Bjarmason
2021-08-30 13:31         ` Han-Wen Nienhuys
2021-08-30 14:10           ` Ævar Arnfjörð Bjarmason
2021-08-17 13:40     ` [PATCH v3 21/25] git-prompt: prepare for reftable refs backend SZEDER Gábor via GitGitGadget
2021-08-17 13:40     ` [PATCH v3 22/25] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:40     ` [PATCH v3 23/25] t1301: document what needs to be done for reftable Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:40     ` [PATCH v3 24/25] t1401,t2011: parameterize HEAD.lock for REFFILES Han-Wen Nienhuys via GitGitGadget
2021-08-17 13:40     ` [PATCH v3 25/25] t1404: annotate test cases with REFFILES Han-Wen Nienhuys via GitGitGadget
2021-08-23  9:08     ` [PATCH v3 00/25] Support reftable ref backend for Git Ævar Arnfjörð Bjarmason
2021-08-26 16:02       ` Ævar Arnfjörð Bjarmason
2021-08-23 12:12     ` [PATCH v4 00/28] " Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 01/28] hash.h: provide constants for the hash IDs Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 02/28] init-db: set the_repository->hash_algo early on Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 03/28] reftable: RFC: add LICENSE Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 04/28] reftable: add error related functionality Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 05/28] reftable: utility functions Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 06/28] reftable: add blocksource, an abstraction for random access reads Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 07/28] reftable: (de)serialization for the polymorphic record type Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 08/28] Provide zlib's uncompress2 from compat/zlib-compat.c Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 09/28] reftable: reading/writing blocks Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 10/28] reftable: a generic binary tree implementation Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 11/28] reftable: write reftable files Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 12/28] reftable: generic interface to tables Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 13/28] reftable: read reftable files Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 14/28] reftable: reftable file level tests Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 15/28] reftable: add a heap-based priority queue for reftable records Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 16/28] reftable: add merged table view Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 17/28] reftable: implement refname validation Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 18/28] reftable: implement stack, a mutable database of reftable files Ævar Arnfjörð Bjarmason
2021-08-27  5:33         ` Junio C Hamano
2021-08-27  6:01           ` [RFC PATCH] reftable: fixup for broken __FUNCTION__ use Ævar Arnfjörð Bjarmason
2021-08-27  7:00             ` Carlo Arenas
2021-08-30 12:11             ` Han-Wen Nienhuys
2021-08-23 12:12       ` [PATCH v4 19/28] reftable: add dump utility Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 20/28] refs: RFC: Reftable support for git-core Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 21/28] git-prompt: prepare for reftable refs backend Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 22/28] Add "test-tool dump-reftable" command Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 23/28] t1301: document what needs to be done for reftable Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 24/28] t1401,t2011: parameterize HEAD.lock for REFFILES Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 25/28] t1404: annotate test cases with REFFILES Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 26/28] reftable: fixup for new base topic 1/3 Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 27/28] reftable: fixup for new base topic 2/3 Ævar Arnfjörð Bjarmason
2021-08-30 12:32         ` Han-Wen Nienhuys
2021-08-30 13:01           ` Ævar Arnfjörð Bjarmason
2021-08-30 13:48             ` Han-Wen Nienhuys
2021-08-30 14:03               ` Ævar Arnfjörð Bjarmason
2021-08-23 12:12       ` [PATCH v4 28/28] reftable: fixup for new base topic 3/3 Ævar Arnfjörð Bjarmason
2021-08-26  8:39       ` [PATCH v4 00/28] Support reftable ref backend for Git Junio C Hamano
2021-08-26  8:56         ` Han-Wen Nienhuys
2021-08-26 15:05           ` Junio C Hamano

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