From: "Han-Wen Nienhuys via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: "Han-Wen Nienhuys" <hanwen@google.com>,
"Jeff King" <peff@peff.net>,
"Ramsay Jones" <ramsay@ramsayjones.plus.com>,
"Jonathan Nieder" <jrnieder@gmail.com>,
"Johannes Schindelin" <Johannes.Schindelin@gmx.de>,
"Jonathan Tan" <jonathantanmy@google.com>,
"Josh Steadmon" <steadmon@google.com>,
"Emily Shaffer" <emilyshaffer@google.com>,
"Patrick Steinhardt" <ps@pks.im>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
"Felipe Contreras" <felipe.contreras@gmail.com>,
"Derrick Stolee" <stolee@gmail.com>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
"Han-Wen Nienhuys g" <hanwen@google.com>,
"Han-Wen Nienhuys" <hanwenn@gmail.com>,
"Han-Wen Nienhuys" <hanwen@google.com>
Subject: [PATCH v7 16/28] reftable: read reftable files
Date: Mon, 19 Apr 2021 11:37:44 +0000 [thread overview]
Message-ID: <501cf0677ce47f5e0f2f5b5e32b84bd180f98002.1618832277.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.847.v7.git.git.1618832276.gitgitgadget@gmail.com>
From: Han-Wen Nienhuys <hanwen@google.com>
This supports reading a single reftable file.
The commit introduces an abstract iterator type, which captures the usecases
both of reading individual refs, and iterating over a segment of the ref
namespace.
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
---
Makefile | 2 +
reftable/iter.c | 194 +++++++++
reftable/iter.h | 69 ++++
reftable/reader.c | 794 +++++++++++++++++++++++++++++++++++++
reftable/reader.h | 66 +++
reftable/reftable-reader.h | 101 +++++
6 files changed, 1226 insertions(+)
create mode 100644 reftable/iter.c
create mode 100644 reftable/iter.h
create mode 100644 reftable/reader.c
create mode 100644 reftable/reader.h
create mode 100644 reftable/reftable-reader.h
diff --git a/Makefile b/Makefile
index 97b69ce8f080..6593e632ac08 100644
--- a/Makefile
+++ b/Makefile
@@ -2412,7 +2412,9 @@ REFTABLE_OBJS += reftable/basics.o
REFTABLE_OBJS += reftable/error.o
REFTABLE_OBJS += reftable/block.o
REFTABLE_OBJS += reftable/blocksource.o
+REFTABLE_OBJS += reftable/iter.o
REFTABLE_OBJS += reftable/publicbasics.o
+REFTABLE_OBJS += reftable/reader.o
REFTABLE_OBJS += reftable/record.o
REFTABLE_OBJS += reftable/refname.o
REFTABLE_OBJS += reftable/generic.o
diff --git a/reftable/iter.c b/reftable/iter.c
new file mode 100644
index 000000000000..93d04f735b85
--- /dev/null
+++ b/reftable/iter.c
@@ -0,0 +1,194 @@
+/*
+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 "iter.h"
+
+#include "system.h"
+
+#include "block.h"
+#include "generic.h"
+#include "constants.h"
+#include "reader.h"
+#include "reftable-error.h"
+
+int iterator_is_null(struct reftable_iterator *it)
+{
+ return !it->ops;
+}
+
+static void filtering_ref_iterator_close(void *iter_arg)
+{
+ struct filtering_ref_iterator *fri = iter_arg;
+ strbuf_release(&fri->oid);
+ reftable_iterator_destroy(&fri->it);
+}
+
+static int filtering_ref_iterator_next(void *iter_arg,
+ struct reftable_record *rec)
+{
+ struct filtering_ref_iterator *fri = iter_arg;
+ struct reftable_ref_record *ref = rec->data;
+ int err = 0;
+ while (1) {
+ err = reftable_iterator_next_ref(&fri->it, ref);
+ if (err != 0) {
+ break;
+ }
+
+ if (fri->double_check) {
+ struct reftable_iterator it = { NULL };
+
+ err = reftable_table_seek_ref(&fri->tab, &it,
+ ref->refname);
+ if (err == 0) {
+ err = reftable_iterator_next_ref(&it, ref);
+ }
+
+ reftable_iterator_destroy(&it);
+
+ if (err < 0) {
+ break;
+ }
+
+ if (err > 0) {
+ continue;
+ }
+ }
+
+ if (ref->value_type == REFTABLE_REF_VAL2 &&
+ (!memcmp(fri->oid.buf, ref->value.val2.target_value,
+ fri->oid.len) ||
+ !memcmp(fri->oid.buf, ref->value.val2.value,
+ fri->oid.len)))
+ return 0;
+
+ if (ref->value_type == REFTABLE_REF_VAL1 &&
+ !memcmp(fri->oid.buf, ref->value.val1, fri->oid.len)) {
+ return 0;
+ }
+ }
+
+ reftable_ref_record_release(ref);
+ return err;
+}
+
+static struct reftable_iterator_vtable filtering_ref_iterator_vtable = {
+ .next = &filtering_ref_iterator_next,
+ .close = &filtering_ref_iterator_close,
+};
+
+void iterator_from_filtering_ref_iterator(struct reftable_iterator *it,
+ struct filtering_ref_iterator *fri)
+{
+ assert(!it->ops);
+ it->iter_arg = fri;
+ it->ops = &filtering_ref_iterator_vtable;
+}
+
+static void indexed_table_ref_iter_close(void *p)
+{
+ struct indexed_table_ref_iter *it = p;
+ block_iter_close(&it->cur);
+ reftable_block_done(&it->block_reader.block);
+ reftable_free(it->offsets);
+ strbuf_release(&it->oid);
+}
+
+static int indexed_table_ref_iter_next_block(struct indexed_table_ref_iter *it)
+{
+ uint64_t off;
+ int err = 0;
+ if (it->offset_idx == it->offset_len) {
+ it->is_finished = 1;
+ return 1;
+ }
+
+ reftable_block_done(&it->block_reader.block);
+
+ off = it->offsets[it->offset_idx++];
+ err = reader_init_block_reader(it->r, &it->block_reader, off,
+ BLOCK_TYPE_REF);
+ if (err < 0) {
+ return err;
+ }
+ if (err > 0) {
+ /* indexed block does not exist. */
+ return REFTABLE_FORMAT_ERROR;
+ }
+ block_reader_start(&it->block_reader, &it->cur);
+ return 0;
+}
+
+static int indexed_table_ref_iter_next(void *p, struct reftable_record *rec)
+{
+ struct indexed_table_ref_iter *it = p;
+ struct reftable_ref_record *ref = rec->data;
+
+ while (1) {
+ int err = block_iter_next(&it->cur, rec);
+ if (err < 0) {
+ return err;
+ }
+
+ if (err > 0) {
+ err = indexed_table_ref_iter_next_block(it);
+ if (err < 0) {
+ return err;
+ }
+
+ if (it->is_finished) {
+ return 1;
+ }
+ continue;
+ }
+ /* BUG */
+ if (!memcmp(it->oid.buf, ref->value.val2.target_value,
+ it->oid.len) ||
+ !memcmp(it->oid.buf, ref->value.val2.value, it->oid.len)) {
+ return 0;
+ }
+ }
+}
+
+int new_indexed_table_ref_iter(struct indexed_table_ref_iter **dest,
+ struct reftable_reader *r, uint8_t *oid,
+ int oid_len, uint64_t *offsets, int offset_len)
+{
+ struct indexed_table_ref_iter empty = INDEXED_TABLE_REF_ITER_INIT;
+ struct indexed_table_ref_iter *itr =
+ reftable_calloc(sizeof(struct indexed_table_ref_iter));
+ int err = 0;
+
+ *itr = empty;
+ itr->r = r;
+ strbuf_add(&itr->oid, oid, oid_len);
+
+ itr->offsets = offsets;
+ itr->offset_len = offset_len;
+
+ err = indexed_table_ref_iter_next_block(itr);
+ if (err < 0) {
+ reftable_free(itr);
+ } else {
+ *dest = itr;
+ }
+ return err;
+}
+
+static struct reftable_iterator_vtable indexed_table_ref_iter_vtable = {
+ .next = &indexed_table_ref_iter_next,
+ .close = &indexed_table_ref_iter_close,
+};
+
+void iterator_from_indexed_table_ref_iter(struct reftable_iterator *it,
+ struct indexed_table_ref_iter *itr)
+{
+ assert(!it->ops);
+ it->iter_arg = itr;
+ it->ops = &indexed_table_ref_iter_vtable;
+}
diff --git a/reftable/iter.h b/reftable/iter.h
new file mode 100644
index 000000000000..09eb0cbfa599
--- /dev/null
+++ b/reftable/iter.h
@@ -0,0 +1,69 @@
+/*
+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 ITER_H
+#define ITER_H
+
+#include "system.h"
+#include "block.h"
+#include "record.h"
+
+#include "reftable-iterator.h"
+#include "reftable-generic.h"
+
+/* Returns true for a zeroed out iterator, such as the one returned from
+ * iterator_destroy. */
+int iterator_is_null(struct reftable_iterator *it);
+
+/* iterator that produces only ref records that point to `oid` */
+struct filtering_ref_iterator {
+ int double_check;
+ struct reftable_table tab;
+ struct strbuf oid;
+ struct reftable_iterator it;
+};
+#define FILTERING_REF_ITERATOR_INIT \
+ { \
+ .oid = STRBUF_INIT \
+ }
+
+void iterator_from_filtering_ref_iterator(struct reftable_iterator *,
+ struct filtering_ref_iterator *);
+
+/* iterator that produces only ref records that point to `oid`,
+ * but using the object index.
+ */
+struct indexed_table_ref_iter {
+ struct reftable_reader *r;
+ struct strbuf oid;
+
+ /* mutable */
+ uint64_t *offsets;
+
+ /* Points to the next offset to read. */
+ int offset_idx;
+ int offset_len;
+ struct block_reader block_reader;
+ struct block_iter cur;
+ int is_finished;
+};
+
+#define INDEXED_TABLE_REF_ITER_INIT \
+ { \
+ .cur = { .last_key = STRBUF_INIT }, .oid = STRBUF_INIT, \
+ }
+
+void iterator_from_indexed_table_ref_iter(struct reftable_iterator *it,
+ struct indexed_table_ref_iter *itr);
+
+/* Takes ownership of `offsets` */
+int new_indexed_table_ref_iter(struct indexed_table_ref_iter **dest,
+ struct reftable_reader *r, uint8_t *oid,
+ int oid_len, uint64_t *offsets, int offset_len);
+
+#endif
diff --git a/reftable/reader.c b/reftable/reader.c
new file mode 100644
index 000000000000..5c9e1d6b1da7
--- /dev/null
+++ b/reftable/reader.c
@@ -0,0 +1,794 @@
+/*
+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 "reader.h"
+
+#include "system.h"
+#include "block.h"
+#include "constants.h"
+#include "generic.h"
+#include "iter.h"
+#include "record.h"
+#include "reftable-error.h"
+#include "reftable-generic.h"
+#include "tree.h"
+
+uint64_t block_source_size(struct reftable_block_source *source)
+{
+ return source->ops->size(source->arg);
+}
+
+int block_source_read_block(struct reftable_block_source *source,
+ struct reftable_block *dest, uint64_t off,
+ uint32_t size)
+{
+ int result = source->ops->read_block(source->arg, dest, off, size);
+ dest->source = *source;
+ return result;
+}
+
+void block_source_close(struct reftable_block_source *source)
+{
+ if (!source->ops) {
+ return;
+ }
+
+ source->ops->close(source->arg);
+ source->ops = NULL;
+}
+
+static struct reftable_reader_offsets *
+reader_offsets_for(struct reftable_reader *r, uint8_t typ)
+{
+ switch (typ) {
+ case BLOCK_TYPE_REF:
+ return &r->ref_offsets;
+ case BLOCK_TYPE_LOG:
+ return &r->log_offsets;
+ case BLOCK_TYPE_OBJ:
+ return &r->obj_offsets;
+ }
+ abort();
+}
+
+static int reader_get_block(struct reftable_reader *r,
+ struct reftable_block *dest, uint64_t off,
+ uint32_t sz)
+{
+ if (off >= r->size)
+ return 0;
+
+ if (off + sz > r->size) {
+ sz = r->size - off;
+ }
+
+ return block_source_read_block(&r->source, dest, off, sz);
+}
+
+uint32_t reftable_reader_hash_id(struct reftable_reader *r)
+{
+ return r->hash_id;
+}
+
+const char *reader_name(struct reftable_reader *r)
+{
+ return r->name;
+}
+
+static int parse_footer(struct reftable_reader *r, uint8_t *footer,
+ uint8_t *header)
+{
+ uint8_t *f = footer;
+ uint8_t first_block_typ;
+ int err = 0;
+ uint32_t computed_crc;
+ uint32_t file_crc;
+
+ if (memcmp(f, "REFT", 4)) {
+ err = REFTABLE_FORMAT_ERROR;
+ goto done;
+ }
+ f += 4;
+
+ if (memcmp(footer, header, header_size(r->version))) {
+ err = REFTABLE_FORMAT_ERROR;
+ goto done;
+ }
+
+ f++;
+ r->block_size = get_be24(f);
+
+ f += 3;
+ r->min_update_index = get_be64(f);
+ f += 8;
+ r->max_update_index = get_be64(f);
+ f += 8;
+
+ if (r->version == 1) {
+ r->hash_id = GIT_SHA1_HASH_ID;
+ } else {
+ r->hash_id = get_be32(f);
+ switch (r->hash_id) {
+ case GIT_SHA1_HASH_ID:
+ break;
+ case GIT_SHA256_HASH_ID:
+ break;
+ default:
+ err = REFTABLE_FORMAT_ERROR;
+ goto done;
+ }
+ f += 4;
+ }
+
+ r->ref_offsets.index_offset = get_be64(f);
+ f += 8;
+
+ r->obj_offsets.offset = get_be64(f);
+ f += 8;
+
+ r->object_id_len = r->obj_offsets.offset & ((1 << 5) - 1);
+ r->obj_offsets.offset >>= 5;
+
+ r->obj_offsets.index_offset = get_be64(f);
+ f += 8;
+ r->log_offsets.offset = get_be64(f);
+ f += 8;
+ r->log_offsets.index_offset = get_be64(f);
+ f += 8;
+
+ computed_crc = crc32(0, footer, f - footer);
+ file_crc = get_be32(f);
+ f += 4;
+ if (computed_crc != file_crc) {
+ err = REFTABLE_FORMAT_ERROR;
+ goto done;
+ }
+
+ first_block_typ = header[header_size(r->version)];
+ r->ref_offsets.is_present = (first_block_typ == BLOCK_TYPE_REF);
+ r->ref_offsets.offset = 0;
+ r->log_offsets.is_present = (first_block_typ == BLOCK_TYPE_LOG ||
+ r->log_offsets.offset > 0);
+ r->obj_offsets.is_present = r->obj_offsets.offset > 0;
+ err = 0;
+done:
+ return err;
+}
+
+int init_reader(struct reftable_reader *r, struct reftable_block_source *source,
+ const char *name)
+{
+ struct reftable_block footer = { NULL };
+ struct reftable_block header = { NULL };
+ int err = 0;
+
+ memset(r, 0, sizeof(struct reftable_reader));
+
+ /* Need +1 to read type of first block. */
+ err = block_source_read_block(source, &header, 0, header_size(2) + 1);
+ if (err != header_size(2) + 1) {
+ err = REFTABLE_IO_ERROR;
+ goto done;
+ }
+
+ if (memcmp(header.data, "REFT", 4)) {
+ err = REFTABLE_FORMAT_ERROR;
+ goto done;
+ }
+ r->version = header.data[4];
+ if (r->version != 1 && r->version != 2) {
+ err = REFTABLE_FORMAT_ERROR;
+ goto done;
+ }
+
+ r->size = block_source_size(source) - footer_size(r->version);
+ r->source = *source;
+ r->name = xstrdup(name);
+ r->hash_id = 0;
+
+ err = block_source_read_block(source, &footer, r->size,
+ footer_size(r->version));
+ if (err != footer_size(r->version)) {
+ err = REFTABLE_IO_ERROR;
+ goto done;
+ }
+
+ err = parse_footer(r, footer.data, header.data);
+done:
+ reftable_block_done(&footer);
+ reftable_block_done(&header);
+ return err;
+}
+
+struct table_iter {
+ struct reftable_reader *r;
+ uint8_t typ;
+ uint64_t block_off;
+ struct block_iter bi;
+ int is_finished;
+};
+#define TABLE_ITER_INIT \
+ { \
+ .bi = {.last_key = STRBUF_INIT } \
+ }
+
+static void table_iter_copy_from(struct table_iter *dest,
+ struct table_iter *src)
+{
+ dest->r = src->r;
+ dest->typ = src->typ;
+ dest->block_off = src->block_off;
+ dest->is_finished = src->is_finished;
+ block_iter_copy_from(&dest->bi, &src->bi);
+}
+
+static int table_iter_next_in_block(struct table_iter *ti,
+ struct reftable_record *rec)
+{
+ int res = block_iter_next(&ti->bi, rec);
+ if (res == 0 && reftable_record_type(rec) == BLOCK_TYPE_REF) {
+ ((struct reftable_ref_record *)rec->data)->update_index +=
+ ti->r->min_update_index;
+ }
+
+ return res;
+}
+
+static void table_iter_block_done(struct table_iter *ti)
+{
+ if (!ti->bi.br) {
+ return;
+ }
+ reftable_block_done(&ti->bi.br->block);
+ FREE_AND_NULL(ti->bi.br);
+
+ ti->bi.last_key.len = 0;
+ ti->bi.next_off = 0;
+}
+
+static int32_t extract_block_size(uint8_t *data, uint8_t *typ, uint64_t off,
+ int version)
+{
+ int32_t result = 0;
+
+ if (off == 0) {
+ data += header_size(version);
+ }
+
+ *typ = data[0];
+ if (reftable_is_block_type(*typ)) {
+ result = get_be24(data + 1);
+ }
+ return result;
+}
+
+int reader_init_block_reader(struct reftable_reader *r, struct block_reader *br,
+ uint64_t next_off, uint8_t want_typ)
+{
+ int32_t guess_block_size = r->block_size ? r->block_size :
+ DEFAULT_BLOCK_SIZE;
+ struct reftable_block block = { NULL };
+ uint8_t block_typ = 0;
+ int err = 0;
+ uint32_t header_off = next_off ? 0 : header_size(r->version);
+ int32_t block_size = 0;
+
+ if (next_off >= r->size)
+ return 1;
+
+ err = reader_get_block(r, &block, next_off, guess_block_size);
+ if (err < 0)
+ return err;
+
+ block_size = extract_block_size(block.data, &block_typ, next_off,
+ r->version);
+ if (block_size < 0)
+ return block_size;
+
+ if (want_typ != BLOCK_TYPE_ANY && block_typ != want_typ) {
+ reftable_block_done(&block);
+ return 1;
+ }
+
+ if (block_size > guess_block_size) {
+ reftable_block_done(&block);
+ err = reader_get_block(r, &block, next_off, block_size);
+ if (err < 0) {
+ return err;
+ }
+ }
+
+ return block_reader_init(br, &block, header_off, r->block_size,
+ hash_size(r->hash_id));
+}
+
+static int table_iter_next_block(struct table_iter *dest,
+ struct table_iter *src)
+{
+ uint64_t next_block_off = src->block_off + src->bi.br->full_block_size;
+ struct block_reader br = { 0 };
+ int err = 0;
+
+ dest->r = src->r;
+ dest->typ = src->typ;
+ dest->block_off = next_block_off;
+
+ err = reader_init_block_reader(src->r, &br, next_block_off, src->typ);
+ if (err > 0) {
+ dest->is_finished = 1;
+ return 1;
+ }
+ if (err != 0)
+ return err;
+ else {
+ struct block_reader *brp =
+ reftable_malloc(sizeof(struct block_reader));
+ *brp = br;
+
+ dest->is_finished = 0;
+ block_reader_start(brp, &dest->bi);
+ }
+ return 0;
+}
+
+static int table_iter_next(struct table_iter *ti, struct reftable_record *rec)
+{
+ if (reftable_record_type(rec) != ti->typ)
+ return REFTABLE_API_ERROR;
+
+ while (1) {
+ struct table_iter next = TABLE_ITER_INIT;
+ int err = 0;
+ if (ti->is_finished) {
+ return 1;
+ }
+
+ err = table_iter_next_in_block(ti, rec);
+ if (err <= 0) {
+ return err;
+ }
+
+ err = table_iter_next_block(&next, ti);
+ if (err != 0) {
+ ti->is_finished = 1;
+ }
+ table_iter_block_done(ti);
+ if (err != 0) {
+ return err;
+ }
+ table_iter_copy_from(ti, &next);
+ block_iter_close(&next.bi);
+ }
+}
+
+static int table_iter_next_void(void *ti, struct reftable_record *rec)
+{
+ return table_iter_next(ti, rec);
+}
+
+static void table_iter_close(void *p)
+{
+ struct table_iter *ti = p;
+ table_iter_block_done(ti);
+ block_iter_close(&ti->bi);
+}
+
+static struct reftable_iterator_vtable table_iter_vtable = {
+ .next = &table_iter_next_void,
+ .close = &table_iter_close,
+};
+
+static void iterator_from_table_iter(struct reftable_iterator *it,
+ struct table_iter *ti)
+{
+ assert(!it->ops);
+ it->iter_arg = ti;
+ it->ops = &table_iter_vtable;
+}
+
+static int reader_table_iter_at(struct reftable_reader *r,
+ struct table_iter *ti, uint64_t off,
+ uint8_t typ)
+{
+ struct block_reader br = { 0 };
+ struct block_reader *brp = NULL;
+
+ int err = reader_init_block_reader(r, &br, off, typ);
+ if (err != 0)
+ return err;
+
+ brp = reftable_malloc(sizeof(struct block_reader));
+ *brp = br;
+ ti->r = r;
+ ti->typ = block_reader_type(brp);
+ ti->block_off = off;
+ block_reader_start(brp, &ti->bi);
+ return 0;
+}
+
+static int reader_start(struct reftable_reader *r, struct table_iter *ti,
+ uint8_t typ, int index)
+{
+ struct reftable_reader_offsets *offs = reader_offsets_for(r, typ);
+ uint64_t off = offs->offset;
+ if (index) {
+ off = offs->index_offset;
+ if (off == 0) {
+ return 1;
+ }
+ typ = BLOCK_TYPE_INDEX;
+ }
+
+ return reader_table_iter_at(r, ti, off, typ);
+}
+
+static int reader_seek_linear(struct reftable_reader *r, struct table_iter *ti,
+ struct reftable_record *want)
+{
+ struct reftable_record rec =
+ reftable_new_record(reftable_record_type(want));
+ struct strbuf want_key = STRBUF_INIT;
+ struct strbuf got_key = STRBUF_INIT;
+ struct table_iter next = TABLE_ITER_INIT;
+ int err = -1;
+
+ reftable_record_key(want, &want_key);
+
+ while (1) {
+ err = table_iter_next_block(&next, ti);
+ if (err < 0)
+ goto done;
+
+ if (err > 0) {
+ break;
+ }
+
+ err = block_reader_first_key(next.bi.br, &got_key);
+ if (err < 0)
+ goto done;
+
+ if (strbuf_cmp(&got_key, &want_key) > 0) {
+ table_iter_block_done(&next);
+ break;
+ }
+
+ table_iter_block_done(ti);
+ table_iter_copy_from(ti, &next);
+ }
+
+ err = block_iter_seek(&ti->bi, &want_key);
+ if (err < 0)
+ goto done;
+ err = 0;
+
+done:
+ block_iter_close(&next.bi);
+ reftable_record_destroy(&rec);
+ strbuf_release(&want_key);
+ strbuf_release(&got_key);
+ return err;
+}
+
+static int reader_seek_indexed(struct reftable_reader *r,
+ struct reftable_iterator *it,
+ struct reftable_record *rec)
+{
+ struct reftable_index_record want_index = { .last_key = STRBUF_INIT };
+ struct reftable_record want_index_rec = { NULL };
+ struct reftable_index_record index_result = { .last_key = STRBUF_INIT };
+ struct reftable_record index_result_rec = { NULL };
+ struct table_iter index_iter = TABLE_ITER_INIT;
+ struct table_iter next = TABLE_ITER_INIT;
+ int err = 0;
+
+ reftable_record_key(rec, &want_index.last_key);
+ reftable_record_from_index(&want_index_rec, &want_index);
+ reftable_record_from_index(&index_result_rec, &index_result);
+
+ err = reader_start(r, &index_iter, reftable_record_type(rec), 1);
+ if (err < 0)
+ goto done;
+
+ err = reader_seek_linear(r, &index_iter, &want_index_rec);
+ while (1) {
+ err = table_iter_next(&index_iter, &index_result_rec);
+ table_iter_block_done(&index_iter);
+ if (err != 0)
+ goto done;
+
+ err = reader_table_iter_at(r, &next, index_result.offset, 0);
+ if (err != 0)
+ goto done;
+
+ err = block_iter_seek(&next.bi, &want_index.last_key);
+ if (err < 0)
+ goto done;
+
+ if (next.typ == reftable_record_type(rec)) {
+ err = 0;
+ break;
+ }
+
+ if (next.typ != BLOCK_TYPE_INDEX) {
+ err = REFTABLE_FORMAT_ERROR;
+ break;
+ }
+
+ table_iter_copy_from(&index_iter, &next);
+ }
+
+ if (err == 0) {
+ struct table_iter empty = TABLE_ITER_INIT;
+ struct table_iter *malloced =
+ reftable_calloc(sizeof(struct table_iter));
+ *malloced = empty;
+ table_iter_copy_from(malloced, &next);
+ iterator_from_table_iter(it, malloced);
+ }
+done:
+ block_iter_close(&next.bi);
+ table_iter_close(&index_iter);
+ reftable_record_release(&want_index_rec);
+ reftable_record_release(&index_result_rec);
+ return err;
+}
+
+static int reader_seek_internal(struct reftable_reader *r,
+ struct reftable_iterator *it,
+ struct reftable_record *rec)
+{
+ struct reftable_reader_offsets *offs =
+ reader_offsets_for(r, reftable_record_type(rec));
+ uint64_t idx = offs->index_offset;
+ struct table_iter ti = TABLE_ITER_INIT;
+ int err = 0;
+ if (idx > 0)
+ return reader_seek_indexed(r, it, rec);
+
+ err = reader_start(r, &ti, reftable_record_type(rec), 0);
+ if (err < 0)
+ return err;
+ err = reader_seek_linear(r, &ti, rec);
+ if (err < 0)
+ return err;
+ else {
+ struct table_iter *p =
+ reftable_malloc(sizeof(struct table_iter));
+ *p = ti;
+ iterator_from_table_iter(it, p);
+ }
+
+ return 0;
+}
+
+int reader_seek(struct reftable_reader *r, struct reftable_iterator *it,
+ struct reftable_record *rec)
+{
+ uint8_t typ = reftable_record_type(rec);
+
+ struct reftable_reader_offsets *offs = reader_offsets_for(r, typ);
+ if (!offs->is_present) {
+ iterator_set_empty(it);
+ return 0;
+ }
+
+ return reader_seek_internal(r, it, rec);
+}
+
+int reftable_reader_seek_ref(struct reftable_reader *r,
+ struct reftable_iterator *it, const char *name)
+{
+ struct reftable_ref_record ref = {
+ .refname = (char *)name,
+ };
+ struct reftable_record rec = { NULL };
+ reftable_record_from_ref(&rec, &ref);
+ return reader_seek(r, it, &rec);
+}
+
+int reftable_reader_seek_log_at(struct reftable_reader *r,
+ struct reftable_iterator *it, const char *name,
+ uint64_t update_index)
+{
+ struct reftable_log_record log = {
+ .refname = (char *)name,
+ .update_index = update_index,
+ };
+ struct reftable_record rec = { NULL };
+ reftable_record_from_log(&rec, &log);
+ return reader_seek(r, it, &rec);
+}
+
+int reftable_reader_seek_log(struct reftable_reader *r,
+ struct reftable_iterator *it, const char *name)
+{
+ uint64_t max = ~((uint64_t)0);
+ return reftable_reader_seek_log_at(r, it, name, max);
+}
+
+void reader_close(struct reftable_reader *r)
+{
+ block_source_close(&r->source);
+ FREE_AND_NULL(r->name);
+}
+
+int reftable_new_reader(struct reftable_reader **p,
+ struct reftable_block_source *src, char const *name)
+{
+ struct reftable_reader *rd =
+ reftable_calloc(sizeof(struct reftable_reader));
+ int err = init_reader(rd, src, name);
+ if (err == 0) {
+ *p = rd;
+ } else {
+ block_source_close(src);
+ reftable_free(rd);
+ }
+ return err;
+}
+
+void reftable_reader_free(struct reftable_reader *r)
+{
+ reader_close(r);
+ reftable_free(r);
+}
+
+static int reftable_reader_refs_for_indexed(struct reftable_reader *r,
+ struct reftable_iterator *it,
+ uint8_t *oid)
+{
+ struct reftable_obj_record want = {
+ .hash_prefix = oid,
+ .hash_prefix_len = r->object_id_len,
+ };
+ struct reftable_record want_rec = { NULL };
+ struct reftable_iterator oit = { NULL };
+ struct reftable_obj_record got = { NULL };
+ struct reftable_record got_rec = { NULL };
+ int err = 0;
+ struct indexed_table_ref_iter *itr = NULL;
+
+ /* Look through the reverse index. */
+ reftable_record_from_obj(&want_rec, &want);
+ err = reader_seek(r, &oit, &want_rec);
+ if (err != 0)
+ goto done;
+
+ /* read out the reftable_obj_record */
+ reftable_record_from_obj(&got_rec, &got);
+ err = iterator_next(&oit, &got_rec);
+ if (err < 0)
+ goto done;
+
+ if (err > 0 ||
+ memcmp(want.hash_prefix, got.hash_prefix, r->object_id_len)) {
+ /* didn't find it; return empty iterator */
+ iterator_set_empty(it);
+ err = 0;
+ goto done;
+ }
+
+ err = new_indexed_table_ref_iter(&itr, r, oid, hash_size(r->hash_id),
+ got.offsets, got.offset_len);
+ if (err < 0)
+ goto done;
+ got.offsets = NULL;
+ iterator_from_indexed_table_ref_iter(it, itr);
+
+done:
+ reftable_iterator_destroy(&oit);
+ reftable_record_release(&got_rec);
+ return err;
+}
+
+static int reftable_reader_refs_for_unindexed(struct reftable_reader *r,
+ struct reftable_iterator *it,
+ uint8_t *oid)
+{
+ struct table_iter ti_empty = TABLE_ITER_INIT;
+ struct table_iter *ti = reftable_calloc(sizeof(struct table_iter));
+ struct filtering_ref_iterator *filter = NULL;
+ struct filtering_ref_iterator empty = FILTERING_REF_ITERATOR_INIT;
+ int oid_len = hash_size(r->hash_id);
+ int err;
+
+ *ti = ti_empty;
+ err = reader_start(r, ti, BLOCK_TYPE_REF, 0);
+ if (err < 0) {
+ reftable_free(ti);
+ return err;
+ }
+
+ filter = reftable_malloc(sizeof(struct filtering_ref_iterator));
+ *filter = empty;
+
+ strbuf_add(&filter->oid, oid, oid_len);
+ reftable_table_from_reader(&filter->tab, r);
+ filter->double_check = 0;
+ iterator_from_table_iter(&filter->it, ti);
+
+ iterator_from_filtering_ref_iterator(it, filter);
+ return 0;
+}
+
+int reftable_reader_refs_for(struct reftable_reader *r,
+ struct reftable_iterator *it, uint8_t *oid)
+{
+ if (r->obj_offsets.is_present)
+ return reftable_reader_refs_for_indexed(r, it, oid);
+ return reftable_reader_refs_for_unindexed(r, it, oid);
+}
+
+uint64_t reftable_reader_max_update_index(struct reftable_reader *r)
+{
+ return r->max_update_index;
+}
+
+uint64_t reftable_reader_min_update_index(struct reftable_reader *r)
+{
+ return r->min_update_index;
+}
+
+/* generic table interface. */
+
+static int reftable_reader_seek_void(void *tab, struct reftable_iterator *it,
+ struct reftable_record *rec)
+{
+ return reader_seek(tab, it, rec);
+}
+
+static uint32_t reftable_reader_hash_id_void(void *tab)
+{
+ return reftable_reader_hash_id(tab);
+}
+
+static uint64_t reftable_reader_min_update_index_void(void *tab)
+{
+ return reftable_reader_min_update_index(tab);
+}
+
+static uint64_t reftable_reader_max_update_index_void(void *tab)
+{
+ return reftable_reader_max_update_index(tab);
+}
+
+static struct reftable_table_vtable reader_vtable = {
+ .seek_record = reftable_reader_seek_void,
+ .hash_id = reftable_reader_hash_id_void,
+ .min_update_index = reftable_reader_min_update_index_void,
+ .max_update_index = reftable_reader_max_update_index_void,
+};
+
+void reftable_table_from_reader(struct reftable_table *tab,
+ struct reftable_reader *reader)
+{
+ assert(!tab->ops);
+ tab->ops = &reader_vtable;
+ tab->table_arg = reader;
+}
+
+
+int reftable_reader_print_file(const char *tablename)
+{
+ struct reftable_block_source src = { NULL };
+ int err = reftable_block_source_from_file(&src, tablename);
+ struct reftable_reader *r = NULL;
+ struct reftable_table tab = { NULL };
+ if (err < 0)
+ goto done;
+
+ err = reftable_new_reader(&r, &src, tablename);
+ if (err < 0)
+ goto done;
+
+ reftable_table_from_reader(&tab, r);
+ err = reftable_table_print(&tab);
+done:
+ reftable_reader_free(r);
+ return err;
+}
diff --git a/reftable/reader.h b/reftable/reader.h
new file mode 100644
index 000000000000..39583e5dbcd4
--- /dev/null
+++ b/reftable/reader.h
@@ -0,0 +1,66 @@
+/*
+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 READER_H
+#define READER_H
+
+#include "block.h"
+#include "record.h"
+#include "reftable-iterator.h"
+#include "reftable-reader.h"
+
+uint64_t block_source_size(struct reftable_block_source *source);
+
+int block_source_read_block(struct reftable_block_source *source,
+ struct reftable_block *dest, uint64_t off,
+ uint32_t size);
+void block_source_close(struct reftable_block_source *source);
+
+/* metadata for a block type */
+struct reftable_reader_offsets {
+ int is_present;
+ uint64_t offset;
+ uint64_t index_offset;
+};
+
+/* The state for reading a reftable file. */
+struct reftable_reader {
+ /* for convience, associate a name with the instance. */
+ char *name;
+ struct reftable_block_source source;
+
+ /* Size of the file, excluding the footer. */
+ uint64_t size;
+
+ /* 'sha1' for SHA1, 's256' for SHA-256 */
+ uint32_t hash_id;
+
+ uint32_t block_size;
+ uint64_t min_update_index;
+ uint64_t max_update_index;
+ /* Length of the OID keys in the 'o' section */
+ int object_id_len;
+ int version;
+
+ struct reftable_reader_offsets ref_offsets;
+ struct reftable_reader_offsets obj_offsets;
+ struct reftable_reader_offsets log_offsets;
+};
+
+int init_reader(struct reftable_reader *r, struct reftable_block_source *source,
+ const char *name);
+int reader_seek(struct reftable_reader *r, struct reftable_iterator *it,
+ struct reftable_record *rec);
+void reader_close(struct reftable_reader *r);
+const char *reader_name(struct reftable_reader *r);
+
+/* initialize a block reader to read from `r` */
+int reader_init_block_reader(struct reftable_reader *r, struct block_reader *br,
+ uint64_t next_off, uint8_t want_typ);
+
+#endif
diff --git a/reftable/reftable-reader.h b/reftable/reftable-reader.h
new file mode 100644
index 000000000000..4a4bc2fdf85a
--- /dev/null
+++ b/reftable/reftable-reader.h
@@ -0,0 +1,101 @@
+/*
+ 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 REFTABLE_READER_H
+#define REFTABLE_READER_H
+
+#include "reftable-iterator.h"
+#include "reftable-blocksource.h"
+
+/*
+ * Reading single tables
+ *
+ * The follow routines are for reading single files. For an
+ * application-level interface, skip ahead to struct
+ * reftable_merged_table and struct reftable_stack.
+ */
+
+/* The reader struct is a handle to an open reftable file. */
+struct reftable_reader;
+
+/* Generic table. */
+struct reftable_table;
+
+/* reftable_new_reader opens a reftable for reading. If successful,
+ * returns 0 code and sets pp. The name is used for creating a
+ * stack. Typically, it is the basename of the file. The block source
+ * `src` is owned by the reader, and is closed on calling
+ * reftable_reader_destroy(). On error, the block source `src` is
+ * closed as well.
+ */
+int reftable_new_reader(struct reftable_reader **pp,
+ struct reftable_block_source *src, const char *name);
+
+/* reftable_reader_seek_ref returns an iterator where 'name' would be inserted
+ in the table. To seek to the start of the table, use name = "".
+
+ example:
+
+ struct reftable_reader *r = NULL;
+ int err = reftable_new_reader(&r, &src, "filename");
+ if (err < 0) { ... }
+ struct reftable_iterator it = {0};
+ err = reftable_reader_seek_ref(r, &it, "refs/heads/master");
+ if (err < 0) { ... }
+ struct reftable_ref_record ref = {0};
+ while (1) {
+ err = reftable_iterator_next_ref(&it, &ref);
+ if (err > 0) {
+ break;
+ }
+ if (err < 0) {
+ ..error handling..
+ }
+ ..found..
+ }
+ reftable_iterator_destroy(&it);
+ reftable_ref_record_release(&ref);
+*/
+int reftable_reader_seek_ref(struct reftable_reader *r,
+ struct reftable_iterator *it, const char *name);
+
+/* returns the hash ID used in this table. */
+uint32_t reftable_reader_hash_id(struct reftable_reader *r);
+
+/* seek to logs for the given name, older than update_index. To seek to the
+ start of the table, use name = "".
+*/
+int reftable_reader_seek_log_at(struct reftable_reader *r,
+ struct reftable_iterator *it, const char *name,
+ uint64_t update_index);
+
+/* seek to newest log entry for given name. */
+int reftable_reader_seek_log(struct reftable_reader *r,
+ struct reftable_iterator *it, const char *name);
+
+/* closes and deallocates a reader. */
+void reftable_reader_free(struct reftable_reader *);
+
+/* return an iterator for the refs pointing to `oid`. */
+int reftable_reader_refs_for(struct reftable_reader *r,
+ struct reftable_iterator *it, uint8_t *oid);
+
+/* return the max_update_index for a table */
+uint64_t reftable_reader_max_update_index(struct reftable_reader *r);
+
+/* return the min_update_index for a table */
+uint64_t reftable_reader_min_update_index(struct reftable_reader *r);
+
+/* creates a generic table from a file reader. */
+void reftable_table_from_reader(struct reftable_table *tab,
+ struct reftable_reader *reader);
+
+/* print table onto stdout for debugging. */
+int reftable_reader_print_file(const char *tablename);
+
+#endif
--
gitgitgadget
next prev parent reply other threads:[~2021-04-19 11:40 UTC|newest]
Thread overview: 251+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-16 19:10 [PATCH 00/13] reftable library Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 01/13] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 02/13] reftable: define the public API Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 03/13] vcxproj: adjust for the reftable changes Johannes Schindelin via GitGitGadget
2020-09-16 19:10 ` [PATCH 04/13] reftable: add a barebones unittest framework Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 05/13] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 06/13] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2020-09-20 1:00 ` Junio C Hamano
2020-09-21 13:13 ` Han-Wen Nienhuys
2020-09-24 7:21 ` Jeff King
2020-09-24 7:31 ` Jeff King
2020-09-24 17:22 ` Junio C Hamano
2020-09-16 19:10 ` [PATCH 07/13] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 08/13] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 09/13] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 10/13] reftable: read " Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 11/13] reftable: file level tests Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 12/13] reftable: rest of library Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 13/13] reftable: "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:10 ` [PATCH v2 00/13] reftable library Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:10 ` [PATCH v2 01/13] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2020-10-02 3:18 ` Jonathan Nieder
2020-10-01 16:10 ` [PATCH v2 02/13] reftable: define the public API Han-Wen Nienhuys via GitGitGadget
2020-10-02 3:58 ` Jonathan Nieder
2020-10-09 21:13 ` Emily Shaffer
2020-10-10 17:03 ` Han-Wen Nienhuys
2020-11-30 14:44 ` Han-Wen Nienhuys
2020-10-10 13:43 ` Han-Wen Nienhuys
2020-10-12 16:57 ` Jonathan Nieder
2020-11-30 14:55 ` Han-Wen Nienhuys
2020-10-08 1:41 ` Jonathan Tan
2020-10-10 16:57 ` Han-Wen Nienhuys
2020-10-01 16:10 ` [PATCH v2 03/13] vcxproj: adjust for the reftable changes Johannes Schindelin via GitGitGadget
2020-10-02 4:02 ` Jonathan Nieder
2020-10-02 11:43 ` Johannes Schindelin
2020-10-01 16:10 ` [PATCH v2 04/13] reftable: add a barebones unittest framework Han-Wen Nienhuys via GitGitGadget
2020-10-02 4:05 ` Jonathan Nieder
2020-10-08 1:45 ` Jonathan Tan
2020-10-08 22:31 ` Josh Steadmon
2020-10-01 16:10 ` [PATCH v2 05/13] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2020-10-02 4:12 ` Jonathan Nieder
2020-10-10 17:32 ` Han-Wen Nienhuys
2020-10-12 15:25 ` Jonathan Nieder
2020-10-12 17:05 ` Patrick Steinhardt
2020-10-12 17:45 ` Jonathan Nieder
2020-10-13 12:12 ` Johannes Schindelin
2020-10-13 15:47 ` Junio C Hamano
2020-10-15 11:46 ` Johannes Schindelin
2020-10-15 16:23 ` Junio C Hamano
2020-10-15 19:39 ` Johannes Schindelin
2020-10-16 9:15 ` Patrick Steinhardt
2020-10-02 14:01 ` Johannes Schindelin
2020-10-02 20:47 ` Junio C Hamano
2020-10-03 8:07 ` Johannes Schindelin
2020-10-08 1:48 ` Jonathan Tan
2020-10-10 17:28 ` Han-Wen Nienhuys
2020-10-11 10:52 ` Johannes Schindelin
2020-10-12 15:19 ` Jonathan Nieder
2020-10-12 18:44 ` Johannes Schindelin
2020-10-12 19:41 ` Jonathan Nieder
2020-10-12 20:27 ` Johannes Schindelin
2020-10-12 16:42 ` Junio C Hamano
2020-10-12 19:01 ` Johannes Schindelin
2020-10-23 9:13 ` Ævar Arnfjörð Bjarmason
2020-10-23 17:36 ` Junio C Hamano
2020-10-01 16:10 ` [PATCH v2 06/13] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2020-10-01 19:23 ` Junio C Hamano
2020-10-01 19:59 ` Ramsay Jones
2020-10-01 16:10 ` [PATCH v2 07/13] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:10 ` [PATCH v2 08/13] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:10 ` [PATCH v2 09/13] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:11 ` [PATCH v2 10/13] reftable: read " Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:11 ` [PATCH v2 11/13] reftable: file level tests Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:11 ` [PATCH v2 12/13] reftable: rest of library Han-Wen Nienhuys via GitGitGadget
2020-10-02 13:57 ` Johannes Schindelin
2020-10-02 17:08 ` Junio C Hamano
2020-10-04 18:39 ` Johannes Schindelin
2020-10-01 16:11 ` [PATCH v2 13/13] reftable: "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42 ` [PATCH v3 00/16] reftable library Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42 ` [PATCH v3 01/16] move sleep_millisec to git-compat-util.h Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42 ` [PATCH v3 02/16] init-db: set the_repository->hash_algo early on Han-Wen Nienhuys via GitGitGadget
2020-11-27 10:22 ` Ævar Arnfjörð Bjarmason
2020-11-26 19:42 ` [PATCH v3 03/16] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2020-11-27 10:23 ` Ævar Arnfjörð Bjarmason
2020-11-30 11:26 ` Han-Wen Nienhuys
2020-11-30 20:25 ` Han-Wen Nienhuys
2020-11-30 21:21 ` Felipe Contreras
2020-12-01 9:51 ` Han-Wen Nienhuys
2020-12-01 10:38 ` Felipe Contreras
2020-12-01 11:45 ` Ævar Arnfjörð Bjarmason
2020-12-01 13:34 ` Han-Wen Nienhuys
2020-12-01 23:13 ` Felipe Contreras
2020-12-01 23:03 ` Felipe Contreras
2020-11-26 19:42 ` [PATCH v3 04/16] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2020-11-27 9:13 ` Felipe Contreras
2020-11-27 10:25 ` Ævar Arnfjörð Bjarmason
2020-11-30 11:27 ` Han-Wen Nienhuys
2020-11-26 19:42 ` [PATCH v3 05/16] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2020-11-27 10:18 ` Felipe Contreras
2020-11-27 10:33 ` Ævar Arnfjörð Bjarmason
2020-11-26 19:42 ` [PATCH v3 06/16] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42 ` [PATCH v3 07/16] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42 ` [PATCH v3 08/16] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42 ` [PATCH v3 09/16] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42 ` [PATCH v3 10/16] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42 ` [PATCH v3 11/16] reftable: read " Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42 ` [PATCH v3 12/16] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42 ` [PATCH v3 13/16] reftable: rest of library Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42 ` [PATCH v3 14/16] Reftable support for git-core Han-Wen Nienhuys via GitGitGadget
2020-11-27 10:59 ` Ævar Arnfjörð Bjarmason
2020-11-26 19:42 ` [PATCH v3 15/16] git-prompt: prepare for reftable refs backend SZEDER Gábor via GitGitGadget
2020-11-26 19:42 ` [PATCH v3 16/16] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 00/15] reftable library Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 01/15] init-db: set the_repository->hash_algo early on Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 02/15] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 03/15] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 04/15] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 05/15] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 06/15] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 07/15] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 08/15] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 09/15] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 10/15] reftable: read " Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 11/15] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 12/15] reftable: rest of library Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 13/15] Reftable support for git-core Han-Wen Nienhuys via GitGitGadget
2021-01-21 15:55 ` Ævar Arnfjörð Bjarmason
2021-01-21 16:14 ` Han-Wen Nienhuys
2021-01-21 16:21 ` Han-Wen Nienhuys
2021-01-26 13:44 ` Ævar Arnfjörð Bjarmason
2021-04-23 10:22 ` Han-Wen Nienhuys
2021-04-26 13:23 ` Ævar Arnfjörð Bjarmason
2021-04-26 16:17 ` Han-Wen Nienhuys
2021-04-28 16:32 ` Ævar Arnfjörð Bjarmason
2021-04-28 17:40 ` Han-Wen Nienhuys
2021-02-22 0:41 ` [PATCH] refs: introduce API function to write invalid null ref Stefan Beller
2021-02-22 1:20 ` Eric Sunshine
2021-02-22 3:09 ` Eric Sunshine
2021-02-22 18:38 ` Han-Wen Nienhuys
2020-12-09 14:00 ` [PATCH v4 14/15] git-prompt: prepare for reftable refs backend SZEDER Gábor via GitGitGadget
2020-12-09 14:00 ` [PATCH v4 15/15] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 00/15] reftable library Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 01/15] init-db: set the_repository->hash_algo early on Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 02/15] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 03/15] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 04/15] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 05/15] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 06/15] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 07/15] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 08/15] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 09/15] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 10/15] reftable: read " Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 11/15] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 12/15] reftable: rest of library Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 13/15] Reftable support for git-core Han-Wen Nienhuys via GitGitGadget
2021-03-23 11:40 ` Derrick Stolee
2021-03-23 12:20 ` Ævar Arnfjörð Bjarmason
2021-03-23 20:14 ` Junio C Hamano
2021-03-23 20:12 ` Junio C Hamano
2021-03-12 20:19 ` [PATCH v5 14/15] git-prompt: prepare for reftable refs backend SZEDER Gábor via GitGitGadget
2021-03-12 20:19 ` [PATCH v5 15/15] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 00/20] reftable library Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 01/20] init-db: set the_repository->hash_algo early on Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 02/20] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2021-04-13 7:28 ` Ævar Arnfjörð Bjarmason
2021-04-13 10:50 ` Han-Wen Nienhuys
2021-04-13 13:41 ` Ævar Arnfjörð Bjarmason
2021-04-12 19:25 ` [PATCH v6 03/20] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 04/20] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2021-04-13 8:02 ` Ævar Arnfjörð Bjarmason
2021-04-13 10:58 ` Han-Wen Nienhuys
2021-04-13 12:56 ` Ævar Arnfjörð Bjarmason
2021-04-13 13:14 ` Ævar Arnfjörð Bjarmason
2021-04-15 15:00 ` Han-Wen Nienhuys
2021-04-12 19:25 ` [PATCH v6 05/20] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 06/20] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 07/20] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2021-04-12 21:40 ` Junio C Hamano
2021-04-13 8:19 ` Ævar Arnfjörð Bjarmason
2021-04-15 8:57 ` Han-Wen Nienhuys
2021-04-12 19:25 ` [PATCH v6 08/20] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 09/20] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 10/20] reftable: generic interface to tables Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 11/20] reftable: read reftable files Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 12/20] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 13/20] reftable: add a heap-based priority queue for reftable records Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 14/20] reftable: add merged table view Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 15/20] reftable: implement refname validation Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 16/20] reftable: implement stack, a mutable database of reftable files Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 17/20] reftable: add dump utility Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 18/20] Reftable support for git-core Han-Wen Nienhuys via GitGitGadget
2021-04-13 7:18 ` Ævar Arnfjörð Bjarmason
2021-04-14 16:44 ` Han-Wen Nienhuys
2021-04-16 14:55 ` Ævar Arnfjörð Bjarmason
2021-04-16 18:47 ` Junio C Hamano
2021-04-12 19:25 ` [PATCH v6 19/20] git-prompt: prepare for reftable refs backend SZEDER Gábor via GitGitGadget
2021-04-12 19:25 ` [PATCH v6 20/20] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 00/28] reftable library Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 01/28] refs: ref_iterator_peel returns boolean, rather than peel_status Han-Wen Nienhuys via GitGitGadget
2021-04-20 18:47 ` Junio C Hamano
2021-04-21 10:15 ` Han-Wen Nienhuys
2021-04-21 23:28 ` Junio C Hamano
2021-04-19 11:37 ` [PATCH v7 02/28] refs: document reflog_expire_fn's flag argument Han-Wen Nienhuys via GitGitGadget
2021-04-20 19:34 ` Junio C Hamano
2021-04-27 15:21 ` Han-Wen Nienhuys
2021-04-19 11:37 ` [PATCH v7 03/28] refs/debug: trace into reflog expiry too Han-Wen Nienhuys via GitGitGadget
2021-04-20 19:41 ` Junio C Hamano
2021-04-22 17:27 ` Han-Wen Nienhuys
2021-04-19 11:37 ` [PATCH v7 04/28] hash.h: provide constants for the hash IDs Han-Wen Nienhuys via GitGitGadget
2021-04-20 19:49 ` Junio C Hamano
2021-04-21 1:04 ` brian m. carlson
2021-04-21 9:43 ` Han-Wen Nienhuys
2021-07-22 8:31 ` Han-Wen Nienhuys
2021-04-19 11:37 ` [PATCH v7 05/28] init-db: set the_repository->hash_algo early on Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 06/28] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2021-04-21 7:48 ` Ævar Arnfjörð Bjarmason
2021-04-21 9:15 ` Han-Wen Nienhuys
2021-04-19 11:37 ` [PATCH v7 07/28] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 08/28] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 09/28] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 10/28] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2021-05-04 17:23 ` Andrzej Hunt
2021-05-18 13:12 ` Han-Wen Nienhuys
2021-04-19 11:37 ` [PATCH v7 11/28] Provide zlib's uncompress2 from compat/zlib-compat.c Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 12/28] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 13/28] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 14/28] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 15/28] reftable: generic interface to tables Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` Han-Wen Nienhuys via GitGitGadget [this message]
2021-04-19 11:37 ` [PATCH v7 17/28] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 18/28] reftable: add a heap-based priority queue for reftable records Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 19/28] reftable: add merged table view Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 20/28] reftable: implement refname validation Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 21/28] reftable: implement stack, a mutable database of reftable files Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 22/28] reftable: add dump utility Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 23/28] Reftable support for git-core Han-Wen Nienhuys via GitGitGadget
2021-04-20 22:44 ` Junio C Hamano
2021-04-21 10:19 ` Han-Wen Nienhuys
2021-04-21 23:22 ` Junio C Hamano
2021-05-04 17:24 ` Andrzej Hunt
2021-05-18 13:18 ` Han-Wen Nienhuys
2021-05-18 13:30 ` Han-Wen Nienhuys
2021-04-19 11:37 ` [PATCH v7 24/28] git-prompt: prepare for reftable refs backend SZEDER Gábor via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 25/28] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 26/28] t1301: document what needs to be done for REFTABLE Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 27/28] t1401,t2011: parameterize HEAD.lock " Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37 ` [PATCH v7 28/28] t1404: annotate test cases with REFFILES Han-Wen Nienhuys via GitGitGadget
2021-04-21 7:45 ` [PATCH v7 00/28] reftable library Ævar Arnfjörð Bjarmason
2021-04-21 9:52 ` Han-Wen Nienhuys
2021-04-21 11:21 ` Ævar Arnfjörð Bjarmason
2021-04-26 17:59 ` Han-Wen Nienhuys
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=501cf0677ce47f5e0f2f5b5e32b84bd180f98002.1618832277.git.gitgitgadget@gmail.com \
--to=gitgitgadget@gmail.com \
--cc=Johannes.Schindelin@gmx.de \
--cc=avarab@gmail.com \
--cc=emilyshaffer@google.com \
--cc=felipe.contreras@gmail.com \
--cc=git@vger.kernel.org \
--cc=hanwen@google.com \
--cc=hanwenn@gmail.com \
--cc=jonathantanmy@google.com \
--cc=jrnieder@gmail.com \
--cc=peff@peff.net \
--cc=ps@pks.im \
--cc=ramsay@ramsayjones.plus.com \
--cc=steadmon@google.com \
--cc=stolee@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).