QueryData genMemoryMap(QueryContext& context) {
QueryData results;
// Linux memory map is exposed in /sys.
std::vector<std::string> regions;
auto status = listDirectoriesInDirectory(kMemoryMapLocation, regions);
if (!status.ok()) {
return {};
}
for (const auto& index : regions) {
fs::path index_path(index);
Row r;
r["region"] = index_path.filename().string();
// The type is a textual description
std::string content;
readFile(index_path / "type", content);
boost::trim(content);
r["type"] = content;
// Keep these in 0xFFFF (hex) form.
readFile(index_path / "start", content);
boost::trim(content);
r["start"] = content;
readFile(index_path / "end", content);
boost::trim(content);
r["end"] = content;
results.push_back(r);
}
return results;
}
static int add_one_path(const struct cache_entry *old, const char *path, int len, struct stat *st)
{
int option, size;
struct cache_entry *ce;
/* Was the old index entry already up-to-date? */
if (old && !ce_stage(old) && !ce_match_stat(old, st, 0))
return 0;
size = cache_entry_size(len);
ce = xcalloc(1, size);
memcpy(ce->name, path, len);
ce->ce_flags = create_ce_flags(0);
ce->ce_namelen = len;
fill_stat_cache_info(ce, st);
ce->ce_mode = ce_mode_from_stat(old, st->st_mode);
if (index_path(ce->sha1, path, st,
info_only ? 0 : HASH_WRITE_OBJECT)) {
free(ce);
return -1;
}
option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
if (add_cache_entry(ce, option))
return error("%s: cannot add to the index - missing --add option?", path);
return 0;
}
index repository::cache::read_index(const entry &package) {
try {
return index(index_path(package)).absolute(package);
} catch (std::exception &) {
BOOST_THROW_EXCEPTION(cache_read_index_error()
<< cache_read_index_error::package(package)
<< enable_nested_current());
}
}
int notes_merge_commit(struct notes_merge_options *o,
struct notes_tree *partial_tree,
struct commit *partial_commit,
unsigned char *result_sha1)
{
/*
* Iterate through files in .git/NOTES_MERGE_WORKTREE and add all
* found notes to 'partial_tree'. Write the updates notes tree to
* the DB, and commit the resulting tree object while reusing the
* commit message and parents from 'partial_commit'.
* Finally store the new commit object SHA1 into 'result_sha1'.
*/
struct dir_struct dir;
char *path = xstrdup(git_path(NOTES_MERGE_WORKTREE "/"));
int path_len = strlen(path), i;
const char *msg = strstr(partial_commit->buffer, "\n\n");
OUTPUT(o, 3, "Committing notes in notes merge worktree at %.*s",
path_len - 1, path);
if (!msg || msg[2] == '\0')
die("partial notes commit has empty message");
msg += 2;
memset(&dir, 0, sizeof(dir));
read_directory(&dir, path, path_len, NULL);
for (i = 0; i < dir.nr; i++) {
struct dir_entry *ent = dir.entries[i];
struct stat st;
const char *relpath = ent->name + path_len;
unsigned char obj_sha1[20], blob_sha1[20];
if (ent->len - path_len != 40 || get_sha1_hex(relpath, obj_sha1)) {
OUTPUT(o, 3, "Skipping non-SHA1 entry '%s'", ent->name);
continue;
}
/* write file as blob, and add to partial_tree */
if (stat(ent->name, &st))
die_errno("Failed to stat '%s'", ent->name);
if (index_path(blob_sha1, ent->name, &st, HASH_WRITE_OBJECT))
die("Failed to write blob object from '%s'", ent->name);
if (add_note(partial_tree, obj_sha1, blob_sha1, NULL))
die("Failed to add resolved note '%s' to notes tree",
ent->name);
OUTPUT(o, 4, "Added resolved note for object %s: %s",
sha1_to_hex(obj_sha1), sha1_to_hex(blob_sha1));
}
create_notes_commit(partial_tree, partial_commit->parents, msg,
result_sha1);
OUTPUT(o, 4, "Finalized notes merge commit: %s",
sha1_to_hex(result_sha1));
free(path);
return 0;
}
std::vector<soa_record_info> list_soa_file_tables(char const* filename)
{
std::vector<soa_record_info> v;
fs::path index_path(filename);
index_path = fs::change_extension(index_path, ".ndx");
fs::ifstream index_ifs(index_path, ios_in_binary());
if(!index_ifs)
{
fatal_error()
<< "File '"
<< index_path
<< "' is required but could not be found. Try reinstalling."
<< LMI_FLUSH
;
}
// Index records have fixed length:
// 4-byte integer: table number
// 50-byte char array: table name
// 4-byte integer: byte offset into '.dat' file
// Table numbers are not necessarily consecutive or sorted.
// SOA !! Assert endianness too? SOA tables are not portable;
// probably they can easily be read only on x86 hardware.
BOOST_STATIC_ASSERT(8 == CHAR_BIT);
BOOST_STATIC_ASSERT(4 == sizeof(int));
BOOST_STATIC_ASSERT(2 == sizeof(short int));
int const index_record_length(58);
char index_record[index_record_length] = {0};
BOOST_STATIC_ASSERT(sizeof(boost::int32_t) <= sizeof(int));
while(index_ifs)
{
index_ifs.read(index_record, index_record_length);
if(index_record_length != index_ifs.gcount())
{
if(!index_ifs)
{
break;
}
fatal_error()
<< "Index file '"
<< index_path.string()
<< "': attempted to read "
<< index_record_length
<< " bytes, but got "
<< index_ifs.gcount()
<< " bytes instead."
<< LMI_FLUSH
;
}
soa_record_info rec;
rec.index = deserialize_cast<boost::int32_t>(index_record);
rec.name.assign(index_record + 4);
v.push_back(rec);
}
return v;
}
int notes_merge_commit(struct notes_merge_options *o,
struct notes_tree *partial_tree,
struct commit *partial_commit,
struct object_id *result_oid)
{
/*
* Iterate through files in .git/NOTES_MERGE_WORKTREE and add all
* found notes to 'partial_tree'. Write the updated notes tree to
* the DB, and commit the resulting tree object while reusing the
* commit message and parents from 'partial_commit'.
* Finally store the new commit object OID into 'result_oid'.
*/
DIR *dir;
struct dirent *e;
struct strbuf path = STRBUF_INIT;
const char *buffer = get_commit_buffer(partial_commit, NULL);
const char *msg = strstr(buffer, "\n\n");
int baselen;
git_path_buf(&path, NOTES_MERGE_WORKTREE);
if (o->verbosity >= 3)
printf("Committing notes in notes merge worktree at %s\n",
path.buf);
if (!msg || msg[2] == '\0')
die("partial notes commit has empty message");
msg += 2;
dir = opendir(path.buf);
if (!dir)
die_errno("could not open %s", path.buf);
strbuf_addch(&path, '/');
baselen = path.len;
while ((e = readdir(dir)) != NULL) {
struct stat st;
struct object_id obj_oid, blob_oid;
if (is_dot_or_dotdot(e->d_name))
continue;
if (get_oid_hex(e->d_name, &obj_oid)) {
if (o->verbosity >= 3)
printf("Skipping non-SHA1 entry '%s%s'\n",
path.buf, e->d_name);
continue;
}
strbuf_addstr(&path, e->d_name);
/* write file as blob, and add to partial_tree */
if (stat(path.buf, &st))
die_errno("Failed to stat '%s'", path.buf);
if (index_path(&blob_oid, path.buf, &st, HASH_WRITE_OBJECT))
die("Failed to write blob object from '%s'", path.buf);
if (add_note(partial_tree, &obj_oid, &blob_oid, NULL))
die("Failed to add resolved note '%s' to notes tree",
path.buf);
if (o->verbosity >= 4)
printf("Added resolved note for object %s: %s\n",
oid_to_hex(&obj_oid), oid_to_hex(&blob_oid));
strbuf_setlen(&path, baselen);
}
create_notes_commit(partial_tree, partial_commit->parents,
msg, strlen(msg), result_oid->hash);
unuse_commit_buffer(partial_commit, buffer);
if (o->verbosity >= 4)
printf("Finalized notes merge commit: %s\n",
oid_to_hex(result_oid));
strbuf_release(&path);
closedir(dir);
return 0;
}
void actuarial_table::find_table()
{
LMI_ASSERT(0 != table_number_);
fs::path index_path(filename_);
index_path = fs::change_extension(index_path, ".ndx");
fs::ifstream index_ifs(index_path, ios_in_binary());
if(!index_ifs)
{
fatal_error()
<< "File '"
<< index_path
<< "' is required but could not be found. Try reinstalling."
<< LMI_FLUSH
;
}
// TODO ?? Assert endianness too? SOA tables are not portable;
// probably they can easily be read only on x86 hardware.
BOOST_STATIC_ASSERT(8 == CHAR_BIT);
BOOST_STATIC_ASSERT(4 == sizeof(int));
BOOST_STATIC_ASSERT(2 == sizeof(short int));
// 27.4.3.2/2 requires that this be interpreted as invalid.
// Reinitialize it here for robustness, even though the ctor
// already initializes it in the same way.
table_offset_ = std::streampos(-1);
int const index_record_length(58);
char index_record[index_record_length] = {0};
BOOST_STATIC_ASSERT(sizeof(boost::int32_t) <= sizeof(int));
while(index_ifs)
{
int index_table_number = deserialize_cast<boost::int32_t>(index_record);
if(table_number_ == index_table_number)
{
char* p = 54 + index_record;
int z = deserialize_cast<boost::int32_t>(p);
table_offset_ = std::streampos(z);
break;
}
index_ifs.read(index_record, index_record_length);
if(index_record_length != index_ifs.gcount())
{
fatal_error()
<< "Table "
<< table_number_
<< " in file '"
<< filename_
<< "': attempted to read "
<< index_record_length
<< " bytes, but got "
<< index_ifs.gcount()
<< " bytes instead."
<< LMI_FLUSH
;
}
}
if(std::streampos(-1) == table_offset_)
{
fatal_error()
<< "Table "
<< table_number_
<< " in file '"
<< filename_
<< "': offset "
<< table_offset_
<< " is invalid."
<< LMI_FLUSH
;
}
}
int git_indexer_commit(git_indexer *idx, git_transfer_progress *stats)
{
git_mwindow *w = NULL;
unsigned int i, long_offsets = 0, left;
int error;
struct git_pack_idx_header hdr;
git_buf filename = GIT_BUF_INIT;
struct entry *entry;
git_oid trailer_hash, file_hash;
git_hash_ctx ctx;
git_filebuf index_file = {0};
void *packfile_trailer;
if (git_hash_ctx_init(&ctx) < 0)
return -1;
/* Test for this before resolve_deltas(), as it plays with idx->off */
if (idx->off < idx->pack->mwf.size - 20) {
giterr_set(GITERR_INDEXER, "Unexpected data at the end of the pack");
return -1;
}
packfile_trailer = git_mwindow_open(&idx->pack->mwf, &w, idx->pack->mwf.size - GIT_OID_RAWSZ, GIT_OID_RAWSZ, &left);
if (packfile_trailer == NULL) {
git_mwindow_close(&w);
goto on_error;
}
/* Compare the packfile trailer as it was sent to us and what we calculated */
git_oid_fromraw(&file_hash, (unsigned char*) packfile_trailer);
git_mwindow_close(&w);
git_hash_final(&trailer_hash, &idx->trailer);
if (git_oid_cmp(&file_hash, &trailer_hash)) {
giterr_set(GITERR_INDEXER, "packfile trailer mismatch");
return -1;
}
/* Freeze the number of deltas */
stats->total_deltas = stats->total_objects - stats->indexed_objects;
if ((error = resolve_deltas(idx, stats)) < 0)
return error;
if (stats->indexed_objects != stats->total_objects) {
giterr_set(GITERR_INDEXER, "early EOF");
return -1;
}
if (stats->local_objects > 0) {
if (update_header_and_rehash(idx, stats) < 0)
return -1;
git_hash_final(&trailer_hash, &idx->trailer);
write_at(idx, &trailer_hash, idx->pack->mwf.size - GIT_OID_RAWSZ, GIT_OID_RAWSZ);
}
git_vector_sort(&idx->objects);
git_buf_sets(&filename, idx->pack->pack_name);
git_buf_shorten(&filename, strlen("pack"));
git_buf_puts(&filename, "idx");
if (git_buf_oom(&filename))
return -1;
if (git_filebuf_open(&index_file, filename.ptr,
GIT_FILEBUF_HASH_CONTENTS, idx->mode) < 0)
goto on_error;
/* Write out the header */
hdr.idx_signature = htonl(PACK_IDX_SIGNATURE);
hdr.idx_version = htonl(2);
git_filebuf_write(&index_file, &hdr, sizeof(hdr));
/* Write out the fanout table */
for (i = 0; i < 256; ++i) {
uint32_t n = htonl(idx->fanout[i]);
git_filebuf_write(&index_file, &n, sizeof(n));
}
/* Write out the object names (SHA-1 hashes) */
git_vector_foreach(&idx->objects, i, entry, struct entry*) {
git_filebuf_write(&index_file, &entry->oid, sizeof(git_oid));
git_hash_update(&ctx, &entry->oid, GIT_OID_RAWSZ);
}
git_hash_final(&idx->hash, &ctx);
/* Write out the CRC32 values */
git_vector_foreach(&idx->objects, i, entry, struct entry*) {
git_filebuf_write(&index_file, &entry->crc, sizeof(uint32_t));
}
/* Write out the offsets */
git_vector_foreach(&idx->objects, i, entry, struct entry*) {
uint32_t n;
if (entry->offset == UINT32_MAX)
n = htonl(0x80000000 | long_offsets++);
else
n = htonl(entry->offset);
git_filebuf_write(&index_file, &n, sizeof(uint32_t));
}
/* Write out the long offsets */
git_vector_foreach(&idx->objects, i, entry, struct entry*) {
uint32_t split[2];
if (entry->offset != UINT32_MAX)
continue;
split[0] = htonl(entry->offset_long >> 32);
split[1] = htonl(entry->offset_long & 0xffffffff);
git_filebuf_write(&index_file, &split, sizeof(uint32_t) * 2);
}
/* Write out the packfile trailer to the index */
if (git_filebuf_write(&index_file, &trailer_hash, GIT_OID_RAWSZ) < 0)
goto on_error;
/* Write out the hash of the idx */
if (git_filebuf_hash(&trailer_hash, &index_file) < 0)
goto on_error;
git_filebuf_write(&index_file, &trailer_hash, sizeof(git_oid));
/* Figure out what the final name should be */
if (index_path(&filename, idx, ".idx") < 0)
goto on_error;
/* Commit file */
if (git_filebuf_commit_at(&index_file, filename.ptr) < 0)
goto on_error;
git_mwindow_free_all(&idx->pack->mwf);
/* We need to close the descriptor here so Windows doesn't choke on commit_at */
if (p_close(idx->pack->mwf.fd) < 0) {
giterr_set(GITERR_OS, "failed to close packfile");
goto on_error;
}
idx->pack->mwf.fd = -1;
if (index_path(&filename, idx, ".pack") < 0)
goto on_error;
/* And don't forget to rename the packfile to its new place. */
p_rename(idx->pack->pack_name, git_buf_cstr(&filename));
git_buf_free(&filename);
git_hash_ctx_cleanup(&ctx);
return 0;
on_error:
git_mwindow_free_all(&idx->pack->mwf);
git_filebuf_cleanup(&index_file);
git_buf_free(&filename);
git_hash_ctx_cleanup(&ctx);
return -1;
}
