static void RemoveDatafileCallback (TRI_datafile_t* datafile, void* data) {
TRI_collection_t* collection;
char* old;
char* filename;
char* name;
char* number;
bool ok;
int res;
collection = data;
number = TRI_StringUInt32(datafile->_fid);
name = TRI_Concatenate3String("deleted-", number, ".db");
filename = TRI_Concatenate2File(collection->_directory, name);
TRI_FreeString(TRI_CORE_MEM_ZONE, number);
TRI_FreeString(TRI_CORE_MEM_ZONE, name);
old = datafile->_filename;
ok = TRI_RenameDatafile(datafile, filename);
if (! ok) {
LOG_ERROR("cannot rename obsolete datafile '%s' to '%s': %s",
old,
filename,
TRI_last_error());
}
LOG_DEBUG("finished compactifing datafile '%s'", datafile->_filename);
ok = TRI_CloseDatafile(datafile);
if (! ok) {
LOG_ERROR("cannot close obsolete datafile '%s': %s",
datafile->_filename,
TRI_last_error());
}
else {
if (collection->_vocbase->_removeOnCompacted) {
LOG_DEBUG("wiping compacted datafile from disk");
res = TRI_UnlinkFile(filename);
if (res != TRI_ERROR_NO_ERROR) {
LOG_ERROR("cannot wipe obsolete datafile '%s': %s",
datafile->_filename,
TRI_last_error());
}
}
}
TRI_FreeDatafile(datafile);
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
}
static void RenameDatafileCallback (TRI_datafile_t* datafile,
void* data) {
compaction_context_t* context;
TRI_datafile_t* compactor;
TRI_primary_collection_t* primary;
bool ok;
context = data;
compactor = context->_compactor;
primary = &context->_document->base;
ok = false;
assert(datafile->_fid == compactor->_fid);
if (datafile->isPhysical(datafile)) {
char* number;
char* jname;
char* tempFilename;
char* realName;
realName = TRI_DuplicateString(datafile->_filename);
// construct a suitable tempname
number = TRI_StringUInt64(datafile->_fid);
jname = TRI_Concatenate3String("temp-", number, ".db");
tempFilename = TRI_Concatenate2File(primary->base._directory, jname);
TRI_FreeString(TRI_CORE_MEM_ZONE, number);
TRI_FreeString(TRI_CORE_MEM_ZONE, jname);
if (! TRI_RenameDatafile(datafile, tempFilename)) {
LOG_ERROR("unable to rename datafile '%s' to '%s'", datafile->getName(datafile), tempFilename);
}
else {
if (! TRI_RenameDatafile(compactor, realName)) {
LOG_ERROR("unable to rename compaction file '%s' to '%s'", compactor->getName(compactor), realName);
}
else {
ok = true;
}
}
TRI_FreeString(TRI_CORE_MEM_ZONE, tempFilename);
TRI_FreeString(TRI_CORE_MEM_ZONE, realName);
}
else {
ok = true;
}
if (ok) {
TRI_doc_datafile_info_t* dfi;
size_t i;
// must acquire a write-lock as we're about to change the datafiles vector
TRI_WRITE_LOCK_DATAFILES_DOC_COLLECTION(primary);
if (! LocateDatafile(&primary->base._datafiles, datafile->_fid, &i)) {
TRI_WRITE_UNLOCK_DATAFILES_DOC_COLLECTION(primary);
LOG_ERROR("logic error: could not locate datafile");
return;
}
// put the compactor in place of the datafile
primary->base._datafiles._buffer[i] = compactor;
// update dfi
dfi = TRI_FindDatafileInfoPrimaryCollection(primary, compactor->_fid, false);
if (dfi != NULL) {
memcpy(dfi, &context->_dfi, sizeof(TRI_doc_datafile_info_t));
}
else {
LOG_ERROR("logic error: could not find compactor file information");
}
if (! LocateDatafile(&primary->base._compactors, compactor->_fid, &i)) {
TRI_WRITE_UNLOCK_DATAFILES_DOC_COLLECTION(primary);
LOG_ERROR("logic error: could not locate compactor");
return;
}
// remove the compactor from the list of compactors
TRI_RemoveVectorPointer(&primary->base._compactors, i);
TRI_WRITE_UNLOCK_DATAFILES_DOC_COLLECTION(primary);
DropDatafileCallback(datafile, primary);
}
TRI_Free(TRI_CORE_MEM_ZONE, context);
}
static void DropDatafileCallback (TRI_datafile_t* datafile, void* data) {
TRI_primary_collection_t* primary;
TRI_voc_fid_t fid;
char* filename;
char* name;
char* number;
char* copy;
bool ok;
primary = data;
fid = datafile->_fid;
copy = NULL;
number = TRI_StringUInt64(fid);
name = TRI_Concatenate3String("deleted-", number, ".db");
filename = TRI_Concatenate2File(primary->base._directory, name);
TRI_FreeString(TRI_CORE_MEM_ZONE, number);
TRI_FreeString(TRI_CORE_MEM_ZONE, name);
if (datafile->isPhysical(datafile)) {
copy = TRI_DuplicateStringZ(TRI_CORE_MEM_ZONE, datafile->_filename);
ok = TRI_RenameDatafile(datafile, filename);
if (! ok) {
LOG_ERROR("cannot rename obsolete datafile '%s' to '%s': %s",
copy,
filename,
TRI_last_error());
}
}
LOG_DEBUG("finished compacting datafile '%s'", datafile->getName(datafile));
ok = TRI_CloseDatafile(datafile);
if (! ok) {
LOG_ERROR("cannot close obsolete datafile '%s': %s",
datafile->getName(datafile),
TRI_last_error());
}
else if (datafile->isPhysical(datafile)) {
if (primary->base._vocbase->_settings.removeOnCompacted) {
int res;
LOG_DEBUG("wiping compacted datafile from disk");
res = TRI_UnlinkFile(filename);
if (res != TRI_ERROR_NO_ERROR) {
LOG_ERROR("cannot wipe obsolete datafile '%s': %s",
datafile->getName(datafile),
TRI_last_error());
}
// check for .dead files
if (copy != NULL) {
// remove .dead file for datafile
char* deadfile = TRI_Concatenate2String(copy, ".dead");
if (deadfile != NULL) {
// check if .dead file exists, then remove it
if (TRI_ExistsFile(deadfile)) {
TRI_UnlinkFile(deadfile);
}
TRI_FreeString(TRI_CORE_MEM_ZONE, deadfile);
}
}
}
}
TRI_FreeDatafile(datafile);
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
if (copy != NULL) {
TRI_FreeString(TRI_CORE_MEM_ZONE, copy);
}
}
static bool CheckCollection (TRI_collection_t* collection) {
TRI_datafile_t* datafile;
TRI_vector_pointer_t all;
TRI_vector_pointer_t compactors;
TRI_vector_pointer_t datafiles;
TRI_vector_pointer_t journals;
TRI_vector_pointer_t sealed;
TRI_vector_string_t files;
bool stop;
regex_t re;
size_t i;
size_t n;
stop = false;
// check files within the directory
files = TRI_FilesDirectory(collection->_directory);
n = files._length;
regcomp(&re, "^(journal|datafile|index|compactor)-([0-9][0-9]*)\\.(db|json)$", REG_EXTENDED);
TRI_InitVectorPointer(&journals, TRI_UNKNOWN_MEM_ZONE);
TRI_InitVectorPointer(&compactors, TRI_UNKNOWN_MEM_ZONE);
TRI_InitVectorPointer(&datafiles, TRI_UNKNOWN_MEM_ZONE);
TRI_InitVectorPointer(&sealed, TRI_UNKNOWN_MEM_ZONE);
TRI_InitVectorPointer(&all, TRI_UNKNOWN_MEM_ZONE);
for (i = 0; i < n; ++i) {
char const* file = files._buffer[i];
regmatch_t matches[4];
if (regexec(&re, file, sizeof(matches) / sizeof(matches[0]), matches, 0) == 0) {
char const* first = file + matches[1].rm_so;
size_t firstLen = matches[1].rm_eo - matches[1].rm_so;
char const* third = file + matches[3].rm_so;
size_t thirdLen = matches[3].rm_eo - matches[3].rm_so;
// .............................................................................
// file is an index, just store the filename
// .............................................................................
if (TRI_EqualString2("index", first, firstLen) && TRI_EqualString2("json", third, thirdLen)) {
char* filename;
filename = TRI_Concatenate2File(collection->_directory, file);
TRI_PushBackVectorString(&collection->_indexFiles, filename);
}
// .............................................................................
// file is a journal or datafile, open the datafile
// .............................................................................
else if (TRI_EqualString2("db", third, thirdLen)) {
char* filename;
char* ptr;
TRI_col_header_marker_t* cm;
filename = TRI_Concatenate2File(collection->_directory, file);
datafile = TRI_OpenDatafile(filename);
if (datafile == NULL) {
collection->_lastError = TRI_errno();
stop = true;
LOG_ERROR("cannot open datafile '%s': %s", filename, TRI_last_error());
break;
}
TRI_PushBackVectorPointer(&all, datafile);
// check the document header
ptr = datafile->_data;
ptr += TRI_DF_ALIGN_BLOCK(sizeof(TRI_df_header_marker_t));
cm = (TRI_col_header_marker_t*) ptr;
if (cm->base._type != TRI_COL_MARKER_HEADER) {
LOG_ERROR("collection header mismatch in file '%s', expected TRI_COL_MARKER_HEADER, found %lu",
filename,
(unsigned long) cm->base._type);
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
stop = true;
break;
}
if (cm->_cid != collection->_info._cid) {
LOG_ERROR("collection identifier mismatch, expected %llu, found %llu",
(unsigned long long) collection->_info._cid,
(unsigned long long) cm->_cid);
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
stop = true;
break;
}
// file is a journal
if (TRI_EqualString2("journal", first, firstLen)) {
if (datafile->_isSealed) {
LOG_WARNING("strange, journal '%s' is already sealed; must be a left over; will use it as datafile", filename);
TRI_PushBackVectorPointer(&sealed, datafile);
}
else {
TRI_PushBackVectorPointer(&journals, datafile);
}
}
// file is a compactor file
else if (TRI_EqualString2("compactor", first, firstLen)) {
if (datafile->_isSealed) {
LOG_WARNING("strange, compactor journal '%s' is already sealed; must be a left over; will use it as datafile", filename);
TRI_PushBackVectorPointer(&sealed, datafile);
}
else {
TRI_PushBackVectorPointer(&compactors, datafile);
}
}
// file is a datafile
else if (TRI_EqualString2("datafile", first, firstLen)) {
if (! datafile->_isSealed) {
LOG_ERROR("datafile '%s' is not sealed, this should never happen", filename);
collection->_lastError = TRI_set_errno(TRI_ERROR_ARANGO_CORRUPTED_DATAFILE);
stop = true;
break;
}
else {
TRI_PushBackVectorPointer(&datafiles, datafile);
}
}
else {
LOG_ERROR("unknown datafile '%s'", file);
}
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
}
else {
LOG_ERROR("unknown datafile '%s'", file);
}
}
}
TRI_DestroyVectorString(&files);
regfree(&re);
// convert the sealed journals into datafiles
if (! stop) {
n = sealed._length;
for (i = 0; i < n; ++i) {
char* number;
char* dname;
char* filename;
bool ok;
datafile = sealed._buffer[i];
number = TRI_StringUInt64(datafile->_fid);
dname = TRI_Concatenate3String("datafile-", number, ".db");
filename = TRI_Concatenate2File(collection->_directory, dname);
TRI_FreeString(TRI_CORE_MEM_ZONE, dname);
TRI_FreeString(TRI_CORE_MEM_ZONE, number);
ok = TRI_RenameDatafile(datafile, filename);
if (ok) {
TRI_PushBackVectorPointer(&datafiles, datafile);
LOG_DEBUG("renamed sealed journal to '%s'", filename);
}
else {
collection->_lastError = datafile->_lastError;
stop = true;
LOG_ERROR("cannot rename sealed log-file to %s, this should not happen: %s", filename, TRI_last_error());
break;
}
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
}
}
TRI_DestroyVectorPointer(&sealed);
// stop if necessary
if (stop) {
n = all._length;
for (i = 0; i < n; ++i) {
datafile = all._buffer[i];
LOG_TRACE("closing datafile '%s'", datafile->_filename);
TRI_CloseDatafile(datafile);
TRI_FreeDatafile(datafile);
}
TRI_DestroyVectorPointer(&all);
TRI_DestroyVectorPointer(&datafiles);
return false;
}
TRI_DestroyVectorPointer(&all);
// add the datafiles and journals
collection->_datafiles = datafiles;
collection->_journals = journals;
collection->_compactors = compactors;
return true;
}
static bool CloseJournalPrimaryCollection (TRI_primary_collection_t* primary,
size_t position,
bool compactor) {
TRI_datafile_t* journal;
TRI_collection_t* collection;
TRI_vector_pointer_t* vector;
int res;
collection = &primary->base;
// either use a journal or a compactor
if (compactor) {
vector = &collection->_compactors;
}
else {
vector = &collection->_journals;
}
// no journal at this position
if (vector->_length <= position) {
TRI_set_errno(TRI_ERROR_ARANGO_NO_JOURNAL);
return false;
}
// seal and rename datafile
journal = vector->_buffer[position];
res = TRI_SealDatafile(journal);
if (res != TRI_ERROR_NO_ERROR) {
LOG_ERROR("failed to seal datafile '%s': %s", journal->getName(journal), TRI_last_error());
TRI_RemoveVectorPointer(vector, position);
TRI_PushBackVectorPointer(&collection->_datafiles, journal);
return false;
}
if (journal->isPhysical(journal)) {
// rename the file
char* dname;
char* filename;
char* number;
bool ok;
number = TRI_StringUInt64(journal->_fid);
dname = TRI_Concatenate3String("datafile-", number, ".db");
filename = TRI_Concatenate2File(collection->_directory, dname);
TRI_FreeString(TRI_CORE_MEM_ZONE, dname);
TRI_FreeString(TRI_CORE_MEM_ZONE, number);
ok = TRI_RenameDatafile(journal, filename);
if (! ok) {
LOG_ERROR("failed to rename datafile '%s' to '%s': %s", journal->getName(journal), filename, TRI_last_error());
TRI_RemoveVectorPointer(vector, position);
TRI_PushBackVectorPointer(&collection->_datafiles, journal);
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
return false;
}
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
LOG_TRACE("closed journal '%s'", journal->getName(journal));
}
TRI_RemoveVectorPointer(vector, position);
TRI_PushBackVectorPointer(&collection->_datafiles, journal);
return true;
}
static TRI_datafile_t* CreateJournal (TRI_primary_collection_t* primary, bool compactor) {
TRI_col_header_marker_t cm;
TRI_collection_t* collection;
TRI_datafile_t* journal;
TRI_df_marker_t* position;
int res;
char* filename;
collection = &primary->base;
if (collection->_info._isVolatile) {
// in-memory collection
filename = NULL;
}
else {
char* jname;
char* number;
// construct a suitable filename
number = TRI_StringUInt64(TRI_NewTickVocBase());
if (compactor) {
jname = TRI_Concatenate3String("journal-", number, ".db");
}
else {
jname = TRI_Concatenate3String("compactor-", number, ".db");
}
filename = TRI_Concatenate2File(collection->_directory, jname);
TRI_FreeString(TRI_CORE_MEM_ZONE, number);
TRI_FreeString(TRI_CORE_MEM_ZONE, jname);
}
// create journal file
journal = TRI_CreateDatafile(filename, collection->_info._maximalSize);
if (filename != NULL) {
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
}
if (journal == NULL) {
if (TRI_errno() == TRI_ERROR_OUT_OF_MEMORY_MMAP) {
collection->_lastError = TRI_set_errno(TRI_ERROR_OUT_OF_MEMORY_MMAP);
collection->_state = TRI_COL_STATE_READ;
}
else {
collection->_lastError = TRI_set_errno(TRI_ERROR_ARANGO_NO_JOURNAL);
collection->_state = TRI_COL_STATE_WRITE_ERROR;
}
return NULL;
}
LOG_TRACE("created a new primary journal '%s'", journal->getName(journal));
if (journal->isPhysical(journal)) {
char* jname;
char* number;
bool ok;
// and use the correct name
number = TRI_StringUInt64(journal->_fid);
if (compactor) {
jname = TRI_Concatenate3String("compactor-", number, ".db");
}
else {
jname = TRI_Concatenate3String("journal-", number, ".db");
}
filename = TRI_Concatenate2File(collection->_directory, jname);
TRI_FreeString(TRI_CORE_MEM_ZONE, number);
TRI_FreeString(TRI_CORE_MEM_ZONE, jname);
ok = TRI_RenameDatafile(journal, filename);
if (! ok) {
LOG_WARNING("failed to rename the journal to '%s': %s", filename, TRI_last_error());
}
else {
LOG_TRACE("renamed journal to '%s'", filename);
}
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
}
// create a collection header
res = TRI_ReserveElementDatafile(journal, sizeof(TRI_col_header_marker_t), &position);
if (res != TRI_ERROR_NO_ERROR) {
collection->_lastError = journal->_lastError;
LOG_ERROR("cannot create document header in journal '%s': %s", journal->getName(journal), TRI_last_error());
TRI_FreeDatafile(journal);
return NULL;
}
memset(&cm, 0, sizeof(cm));
cm.base._size = sizeof(TRI_col_header_marker_t);
cm.base._type = TRI_COL_MARKER_HEADER;
cm.base._tick = TRI_NewTickVocBase();
cm._cid = collection->_info._cid;
TRI_FillCrcMarkerDatafile(journal, &cm.base, sizeof(cm), 0, 0, 0, 0);
res = TRI_WriteElementDatafile(journal, position, &cm.base, sizeof(cm), 0, 0, 0, 0, true);
if (res != TRI_ERROR_NO_ERROR) {
collection->_lastError = journal->_lastError;
LOG_ERROR("cannot create document header in journal '%s': %s", journal->getName(journal), TRI_last_error());
TRI_FreeDatafile(journal);
return NULL;
}
// that's it
if (compactor) {
TRI_PushBackVectorPointer(&collection->_compactors, journal);
}
else {
TRI_PushBackVectorPointer(&collection->_journals, journal);
}
return journal;
}
static TRI_datafile_t* CreateJournal (TRI_primary_collection_t* primary,
TRI_voc_size_t maximalSize) {
TRI_col_header_marker_t cm;
TRI_collection_t* collection;
TRI_datafile_t* journal;
TRI_df_marker_t* position;
TRI_voc_fid_t fid;
int res;
collection = &primary->base;
fid = (TRI_voc_fid_t) TRI_NewTickServer();
if (collection->_info._isVolatile) {
// in-memory collection
journal = TRI_CreateDatafile(NULL, fid, maximalSize);
}
else {
char* jname;
char* number;
char* filename;
// construct a suitable filename (which is temporary at the beginning)
number = TRI_StringUInt64(fid);
jname = TRI_Concatenate3String("temp-", number, ".db");
filename = TRI_Concatenate2File(collection->_directory, jname);
TRI_FreeString(TRI_CORE_MEM_ZONE, number);
TRI_FreeString(TRI_CORE_MEM_ZONE, jname);
journal = TRI_CreateDatafile(filename, fid, maximalSize);
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
}
if (journal == NULL) {
if (TRI_errno() == TRI_ERROR_OUT_OF_MEMORY_MMAP) {
collection->_lastError = TRI_set_errno(TRI_ERROR_OUT_OF_MEMORY_MMAP);
collection->_state = TRI_COL_STATE_READ;
}
else {
collection->_lastError = TRI_set_errno(TRI_ERROR_ARANGO_NO_JOURNAL);
collection->_state = TRI_COL_STATE_WRITE_ERROR;
}
return NULL;
}
LOG_TRACE("created new journal '%s'", journal->getName(journal));
// create a collection header, still in the temporary file
res = TRI_ReserveElementDatafile(journal, sizeof(TRI_col_header_marker_t), &position, maximalSize);
if (res != TRI_ERROR_NO_ERROR) {
collection->_lastError = journal->_lastError;
LOG_ERROR("cannot create document header in journal '%s': %s", journal->getName(journal), TRI_last_error());
TRI_FreeDatafile(journal);
return NULL;
}
TRI_InitMarker((char*) &cm, TRI_COL_MARKER_HEADER, sizeof(TRI_col_header_marker_t));
cm.base._tick = (TRI_voc_tick_t) fid;
cm._type = (TRI_col_type_t) collection->_info._type;
cm._cid = collection->_info._cid;
res = TRI_WriteCrcElementDatafile(journal, position, &cm.base, sizeof(cm), true);
if (res != TRI_ERROR_NO_ERROR) {
collection->_lastError = journal->_lastError;
LOG_ERROR("cannot create document header in journal '%s': %s", journal->getName(journal), TRI_last_error());
TRI_FreeDatafile(journal);
return NULL;
}
assert(fid == journal->_fid);
// if a physical file, we can rename it from the temporary name to the correct name
if (journal->isPhysical(journal)) {
char* jname;
char* number;
char* filename;
bool ok;
// and use the correct name
number = TRI_StringUInt64(journal->_fid);
jname = TRI_Concatenate3String("journal-", number, ".db");
filename = TRI_Concatenate2File(collection->_directory, jname);
TRI_FreeString(TRI_CORE_MEM_ZONE, number);
TRI_FreeString(TRI_CORE_MEM_ZONE, jname);
ok = TRI_RenameDatafile(journal, filename);
if (! ok) {
LOG_ERROR("failed to rename the journal to '%s': %s", filename, TRI_last_error());
TRI_FreeDatafile(journal);
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
return NULL;
}
else {
LOG_TRACE("renamed journal from %s to '%s'", journal->getName(journal), filename);
}
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
}
TRI_PushBackVectorPointer(&collection->_journals, journal);
return journal;
}
static bool CreateJournal (TRI_shape_collection_t* collection) {
TRI_col_header_marker_t cm;
TRI_datafile_t* journal;
TRI_df_marker_t* position;
char* filename;
int res;
if (collection->base._info._isVolatile) {
// in memory collection
filename = NULL;
}
else {
char* jname;
char* number;
number = TRI_StringUInt32(TRI_NewTickVocBase());
if (! number) {
return false;
}
jname = TRI_Concatenate3String("journal-", number, ".db");
TRI_FreeString(TRI_CORE_MEM_ZONE, number);
filename = TRI_Concatenate2File(collection->base._directory, jname);
TRI_FreeString(TRI_CORE_MEM_ZONE, jname);
}
journal = TRI_CreateDatafile(filename, collection->base._info._maximalSize);
if (filename != NULL) {
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
}
// check that a journal was created
if (journal == NULL) {
if (TRI_errno() == TRI_ERROR_OUT_OF_MEMORY_MMAP) {
collection->base._lastError = TRI_set_errno(TRI_ERROR_OUT_OF_MEMORY_MMAP);
collection->base._state = TRI_COL_STATE_READ;
}
else {
collection->base._lastError = TRI_set_errno(TRI_ERROR_ARANGO_NO_JOURNAL);
collection->base._state = TRI_COL_STATE_WRITE_ERROR;
}
return false;
}
LOG_TRACE("created a new shape journal '%s'", journal->getName(journal));
if (journal->isPhysical(journal)) {
char* jname;
char* number;
bool ok;
// and use the correct name
number = TRI_StringUInt32(journal->_fid);
jname = TRI_Concatenate3String("journal-", number, ".db");
filename = TRI_Concatenate2File(collection->base._directory, jname);
TRI_FreeString(TRI_CORE_MEM_ZONE, number);
TRI_FreeString(TRI_CORE_MEM_ZONE, jname);
ok = TRI_RenameDatafile(journal, filename);
if (! ok) {
// TODO: remove disastrous call to exit() here
LOG_FATAL_AND_EXIT("failed to rename the journal to '%s': %s", filename, TRI_last_error());
}
else {
LOG_TRACE("renamed journal to '%s'", filename);
}
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
}
// create a collection header
res = TRI_ReserveElementDatafile(journal, sizeof(TRI_col_header_marker_t), &position);
if (res != TRI_ERROR_NO_ERROR) {
LOG_ERROR("cannot create document header in journal '%s': %s",
journal->getName(journal),
TRI_last_error());
TRI_FreeDatafile(journal);
return false;
}
// create a header
memset(&cm, 0, sizeof(cm));
cm.base._size = sizeof(TRI_col_header_marker_t);
cm.base._type = TRI_COL_MARKER_HEADER;
cm.base._tick = TRI_NewTickVocBase();
cm._cid = collection->base._info._cid;
TRI_FillCrcMarkerDatafile(journal, &cm.base, sizeof(cm), 0, 0, 0, 0);
// on journal creation, always use waitForSync = true
res = TRI_WriteElementDatafile(journal, position, &cm.base, sizeof(cm), 0, 0, 0, 0, true);
if (res != TRI_ERROR_NO_ERROR) {
LOG_ERROR("cannot create document header in journal '%s': %s",
journal->getName(journal),
TRI_last_error());
TRI_FreeDatafile(journal);
return false;
}
// that's it
TRI_PushBackVectorPointer(&collection->base._journals, journal);
return true;
}
static bool CloseJournal (TRI_shape_collection_t* collection, TRI_datafile_t* journal) {
int res;
size_t i;
size_t n;
// remove datafile from list of journals
n = collection->base._journals._length;
for (i = 0; i < n; ++i) {
TRI_datafile_t* df;
df = collection->base._journals._buffer[i];
if (journal == df) {
break;
}
}
if (i == n) {
TRI_set_errno(TRI_ERROR_ARANGO_NO_JOURNAL);
return false;
}
// seal datafile
res = TRI_SealDatafile(journal);
if (res != TRI_ERROR_NO_ERROR) {
collection->base._state = TRI_COL_STATE_WRITE_ERROR;
return false;
}
// rename datafile
if (journal->isPhysical(journal)) {
char* dname;
char* filename;
char* number;
bool ok;
number = TRI_StringUInt32(journal->_fid);
dname = TRI_Concatenate3String("datafile-", number, ".db");
filename = TRI_Concatenate2File(collection->base._directory, dname);
TRI_FreeString(TRI_CORE_MEM_ZONE, dname);
TRI_FreeString(TRI_CORE_MEM_ZONE, number);
ok = TRI_RenameDatafile(journal, filename);
TRI_FreeString(TRI_CORE_MEM_ZONE, filename);
if (! ok) {
collection->base._state = TRI_COL_STATE_WRITE_ERROR;
return false;
}
}
LOG_TRACE("closed journal '%s'", journal->getName(journal));
TRI_RemoveVectorPointer(&collection->base._journals, i);
TRI_PushBackVectorPointer(&collection->base._datafiles, journal);
return true;
}