* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program. If not, see http://www.gnu.org/licenses/ .
+ * along with this program. If not, see https://www.gnu.org/licenses/ .
*
* Author: Carl Worth <cworth@cworth.org>
*/
#include "notmuch-private.h"
#include "database-private.h"
-#include <xapian.h>
-
-struct _notmuch_filenames {
- Xapian::TermIterator iterator;
- Xapian::TermIterator end;
- int prefix_len;
- char *filename;
-};
-
-/* We end up having to call the destructors explicitly because we had
- * to use "placement new" in order to initialize C++ objects within a
- * block that we allocated with talloc. So C++ is making talloc
- * slightly less simple to use, (we wouldn't need
- * talloc_set_destructor at all otherwise).
- */
-static int
-_notmuch_filenames_destructor (notmuch_filenames_t *filenames)
-{
- filenames->iterator.~TermIterator ();
- filenames->end.~TermIterator ();
-
- return 0;
-}
-
/* Create an iterator to iterate over the basenames of files (or
* directories) that all share a common parent directory.
- *
- * The code here is general enough to be reused for any case of
- * iterating over the non-prefixed portion of terms sharing a common
- * prefix.
*/
-notmuch_filenames_t *
-_notmuch_filenames_create (void *ctx,
- notmuch_database_t *notmuch,
- const char *prefix)
+static notmuch_filenames_t *
+_create_filenames_for_terms_with_prefix (void *ctx,
+ notmuch_database_t *notmuch,
+ const char *prefix)
{
- notmuch_filenames_t *filenames;
-
- filenames = talloc (ctx, notmuch_filenames_t);
- if (unlikely (filenames == NULL))
+ notmuch_string_list_t *filename_list;
+ Xapian::TermIterator i, end;
+
+ i = notmuch->xapian_db->allterms_begin ();
+ end = notmuch->xapian_db->allterms_end ();
+ filename_list = _notmuch_database_get_terms_with_prefix (ctx, i, end,
+ prefix);
+ if (unlikely (filename_list == NULL))
return NULL;
- new (&filenames->iterator) Xapian::TermIterator ();
- new (&filenames->end) Xapian::TermIterator ();
-
- talloc_set_destructor (filenames, _notmuch_filenames_destructor);
-
- filenames->iterator = notmuch->xapian_db->allterms_begin (prefix);
- filenames->end = notmuch->xapian_db->allterms_end (prefix);
-
- filenames->prefix_len = strlen (prefix);
-
- filenames->filename = NULL;
-
- return filenames;
-}
-
-notmuch_bool_t
-notmuch_filenames_valid (notmuch_filenames_t *filenames)
-{
- if (filenames == NULL)
- return NULL;
-
- return (filenames->iterator != filenames->end);
-}
-
-const char *
-notmuch_filenames_get (notmuch_filenames_t *filenames)
-{
- if (filenames == NULL || filenames->iterator == filenames->end)
- return NULL;
-
- if (filenames->filename == NULL) {
- std::string term = *filenames->iterator;
-
- filenames->filename = talloc_strdup (filenames,
- term.c_str () +
- filenames->prefix_len);
- }
-
- return filenames->filename;
-}
-
-void
-notmuch_filenames_move_to_next (notmuch_filenames_t *filenames)
-{
- if (filenames == NULL)
- return;
-
- if (filenames->filename) {
- talloc_free (filenames->filename);
- filenames->filename = NULL;
- }
-
- if (filenames->iterator != filenames->end)
- filenames->iterator++;
-}
-
-void
-notmuch_filenames_destroy (notmuch_filenames_t *filenames)
-{
- if (filenames == NULL)
- return;
-
- talloc_free (filenames);
+ return _notmuch_filenames_create (ctx, filename_list);
}
struct _notmuch_directory {
time_t mtime;
};
+#define LOG_XAPIAN_EXCEPTION(directory, error) _log_xapian_exception (__location__, directory, error)
+
+static void
+_log_xapian_exception (const char *where, notmuch_directory_t *dir, const Xapian::Error error)
+{
+ notmuch_database_t *notmuch = dir->notmuch;
+
+ _notmuch_database_log (notmuch,
+ "A Xapian exception occurred at %s: %s\n",
+ where,
+ error.get_msg ().c_str ());
+ notmuch->exception_reported = true;
+}
+
+
/* We end up having to call the destructor explicitly because we had
* to use "placement new" in order to initialize C++ objects within a
* block that we allocated with talloc. So C++ is making talloc
return NOTMUCH_PRIVATE_STATUS_SUCCESS;
}
+/* Find or create a directory document.
+ *
+ * 'path' should be a path relative to the path of 'database', or else
+ * should be an absolute path with initial components that match the
+ * path of 'database'.
+ *
+ * If (flags & NOTMUCH_FIND_CREATE), then the directory document will
+ * be created if it does not exist. Otherwise, if the directory
+ * document does not exist, *status_ret is set to
+ * NOTMUCH_STATUS_SUCCESS and this returns NULL.
+ */
notmuch_directory_t *
-_notmuch_directory_create (notmuch_database_t *notmuch,
- const char *path,
- notmuch_status_t *status_ret)
+_notmuch_directory_find_or_create (notmuch_database_t *notmuch,
+ const char *path,
+ notmuch_find_flags_t flags,
+ notmuch_status_t *status_ret)
{
- Xapian::WritableDatabase *db;
notmuch_directory_t *directory;
notmuch_private_status_t private_status;
const char *db_path;
+ bool create = (flags & NOTMUCH_FIND_CREATE);
+
+ if (! (notmuch->features & NOTMUCH_FEATURE_DIRECTORY_DOCS)) {
+ *status_ret = NOTMUCH_STATUS_UPGRADE_REQUIRED;
+ return NULL;
+ }
*status_ret = NOTMUCH_STATUS_SUCCESS;
path = _notmuch_database_relative_path (notmuch, path);
- if (notmuch->mode == NOTMUCH_DATABASE_MODE_READ_ONLY)
+ if (create && _notmuch_database_mode (notmuch) == NOTMUCH_DATABASE_MODE_READ_ONLY)
INTERNAL_ERROR ("Failure to ensure database is writable");
- db = static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db);
-
directory = talloc (notmuch, notmuch_directory_t);
- if (unlikely (directory == NULL))
+ if (unlikely (directory == NULL)) {
+ *status_ret = NOTMUCH_STATUS_OUT_OF_MEMORY;
return NULL;
+ }
directory->notmuch = notmuch;
directory->document_id = directory->doc.get_docid ();
if (private_status == NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND) {
+ if (! create) {
+ notmuch_directory_destroy (directory);
+ directory = NULL;
+ *status_ret = NOTMUCH_STATUS_SUCCESS;
+ goto DONE;
+ }
+
void *local = talloc_new (directory);
const char *parent, *basename;
Xapian::docid parent_id;
_notmuch_database_split_path (local, path, &parent, &basename);
- _notmuch_database_find_directory_id (notmuch, parent, &parent_id);
+ *status_ret = _notmuch_database_find_directory_id (
+ notmuch, parent, NOTMUCH_FIND_CREATE, &parent_id);
+ if (*status_ret) {
+ notmuch_directory_destroy (directory);
+ directory = NULL;
+ goto DONE;
+ }
if (basename) {
term = talloc_asprintf (local, "%s%u:%s",
Xapian::sortable_serialise (0));
directory->document_id = _notmuch_database_generate_doc_id (notmuch);
- db->replace_document (directory->document_id, directory->doc);
+ directory->notmuch->
+ writable_xapian_db
+ -> replace_document (directory->document_id, directory->doc);
talloc_free (local);
}
directory->mtime = Xapian::sortable_unserialise (
directory->doc.get_value (NOTMUCH_VALUE_TIMESTAMP));
} catch (const Xapian::Error &error) {
- fprintf (stderr,
- "A Xapian exception occurred creating a directory: %s.\n",
- error.get_msg().c_str());
- notmuch->exception_reported = TRUE;
+ _notmuch_database_log (notmuch,
+ "A Xapian exception occurred finding/creating a directory: %s.\n",
+ error.get_msg ().c_str ());
+ notmuch->exception_reported = true;
notmuch_directory_destroy (directory);
+ directory = NULL;
*status_ret = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
- return NULL;
}
+ DONE:
if (db_path != path)
free ((char *) db_path);
time_t mtime)
{
notmuch_database_t *notmuch = directory->notmuch;
- Xapian::WritableDatabase *db;
notmuch_status_t status;
status = _notmuch_database_ensure_writable (notmuch);
if (status)
return status;
- db = static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db);
-
try {
directory->doc.add_value (NOTMUCH_VALUE_TIMESTAMP,
- Xapian::sortable_serialise (mtime));
+ Xapian::sortable_serialise (mtime));
+
+ directory->notmuch
+ ->writable_xapian_db->replace_document (directory->document_id, directory->doc);
+
+ directory->mtime = mtime;
- db->replace_document (directory->document_id, directory->doc);
} catch (const Xapian::Error &error) {
- fprintf (stderr,
- "A Xapian exception occurred setting directory mtime: %s.\n",
- error.get_msg().c_str());
- notmuch->exception_reported = TRUE;
+ _notmuch_database_log (notmuch,
+ "A Xapian exception occurred setting directory mtime: %s.\n",
+ error.get_msg ().c_str ());
+ notmuch->exception_reported = true;
return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
notmuch_directory_get_child_files (notmuch_directory_t *directory)
{
char *term;
- notmuch_filenames_t *child_files;
+ notmuch_filenames_t *child_files = NULL;
term = talloc_asprintf (directory, "%s%u:",
_find_prefix ("file-direntry"),
directory->document_id);
- child_files = _notmuch_filenames_create (directory,
- directory->notmuch, term);
+ try {
+ child_files = _create_filenames_for_terms_with_prefix (directory,
+ directory->notmuch,
+ term);
+ } catch (Xapian::Error &error) {
+ LOG_XAPIAN_EXCEPTION (directory, error);
+ }
talloc_free (term);
notmuch_directory_get_child_directories (notmuch_directory_t *directory)
{
char *term;
- notmuch_filenames_t *child_directories;
+ notmuch_filenames_t *child_directories = NULL;
term = talloc_asprintf (directory, "%s%u:",
_find_prefix ("directory-direntry"),
directory->document_id);
- child_directories = _notmuch_filenames_create (directory,
- directory->notmuch, term);
+ try {
+ child_directories = _create_filenames_for_terms_with_prefix (directory,
+ directory->notmuch, term);
+ } catch (Xapian::Error &error) {
+ LOG_XAPIAN_EXCEPTION (directory, error);
+ }
talloc_free (term);
return child_directories;
}
+notmuch_status_t
+notmuch_directory_delete (notmuch_directory_t *directory)
+{
+ notmuch_status_t status;
+
+ status = _notmuch_database_ensure_writable (directory->notmuch);
+ if (status)
+ return status;
+
+ try {
+ directory->notmuch->
+ writable_xapian_db->delete_document (directory->document_id);
+ } catch (const Xapian::Error &error) {
+ _notmuch_database_log (directory->notmuch,
+ "A Xapian exception occurred deleting directory entry: %s.\n",
+ error.get_msg ().c_str ());
+ directory->notmuch->exception_reported = true;
+ status = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
+ }
+ notmuch_directory_destroy (directory);
+
+ return status;
+}
+
void
notmuch_directory_destroy (notmuch_directory_t *directory)
{
projects / notmuch / blobdiff