#include <signal.h>
#include <glib.h> /* g_free, GPtrArray, GHashTable */
+#include <glib-object.h> /* g_type_init */
+
+#include <gmime/gmime.h> /* g_mime_init */
using namespace std;
* STRING is the name of a file within that
* directory for this mail message.
*
- * A mail document also has two values:
+ * A mail document also has four values:
*
* TIMESTAMP: The time_t value corresponding to the message's
* Date header.
*
* MESSAGE_ID: The unique ID of the mail mess (see "id" above)
*
+ * FROM: The value of the "From" header
+ *
+ * SUBJECT: The value of the "Subject" header
+ *
* In addition, terms from the content of the message are added with
* "from", "to", "attachment", and "subject" prefixes for use by the
* user in searching. Similarly, terms from the path of the mail
{ "folder", "XFOLDER"}
};
-int
-_internal_error (const char *format, ...)
-{
- va_list va_args;
-
- va_start (va_args, format);
-
- fprintf (stderr, "Internal error: ");
- vfprintf (stderr, format, va_args);
-
- exit (1);
-
- return 1;
-}
-
const char *
_find_prefix (const char *name)
{
return "Tag value is too long (exceeds NOTMUCH_TAG_MAX)";
case NOTMUCH_STATUS_UNBALANCED_FREEZE_THAW:
return "Unbalanced number of calls to notmuch_message_freeze/thaw";
+ case NOTMUCH_STATUS_UNBALANCED_ATOMIC:
+ return "Unbalanced number of calls to notmuch_database_begin_atomic/end_atomic";
default:
case NOTMUCH_STATUS_LAST_STATUS:
return "Unknown error status value";
return compressed;
}
-notmuch_message_t *
+notmuch_status_t
notmuch_database_find_message (notmuch_database_t *notmuch,
- const char *message_id)
+ const char *message_id,
+ notmuch_message_t **message_ret)
{
notmuch_private_status_t status;
unsigned int doc_id;
+ if (message_ret == NULL)
+ return NOTMUCH_STATUS_NULL_POINTER;
+
if (strlen (message_id) > NOTMUCH_MESSAGE_ID_MAX)
message_id = _message_id_compressed (notmuch, message_id);
message_id, &doc_id);
if (status == NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND)
- return NULL;
+ *message_ret = NULL;
+ else {
+ *message_ret = _notmuch_message_create (notmuch, notmuch, doc_id,
+ NULL);
+ if (*message_ret == NULL)
+ return NOTMUCH_STATUS_OUT_OF_MEMORY;
+ }
- return _notmuch_message_create (notmuch, notmuch, doc_id, NULL);
+ return NOTMUCH_STATUS_SUCCESS;
} catch (const Xapian::Error &error) {
fprintf (stderr, "A Xapian exception occurred finding message: %s.\n",
error.get_msg().c_str());
notmuch->exception_reported = TRUE;
- return NULL;
+ *message_ret = NULL;
+ return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
}
}
}
-notmuch_database_t *
-notmuch_database_create (const char *path)
+notmuch_status_t
+notmuch_database_create (const char *path, notmuch_database_t **database)
{
+ notmuch_status_t status = NOTMUCH_STATUS_SUCCESS;
notmuch_database_t *notmuch = NULL;
char *notmuch_path = NULL;
struct stat st;
if (path == NULL) {
fprintf (stderr, "Error: Cannot create a database for a NULL path.\n");
+ status = NOTMUCH_STATUS_NULL_POINTER;
goto DONE;
}
if (err) {
fprintf (stderr, "Error: Cannot create database at %s: %s.\n",
path, strerror (errno));
+ status = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
if (! S_ISDIR (st.st_mode)) {
fprintf (stderr, "Error: Cannot create database at %s: Not a directory.\n",
path);
+ status = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
if (err) {
fprintf (stderr, "Error: Cannot create directory %s: %s.\n",
notmuch_path, strerror (errno));
+ status = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
- notmuch = notmuch_database_open (path,
- NOTMUCH_DATABASE_MODE_READ_WRITE);
- notmuch_database_upgrade (notmuch, NULL, NULL);
+ status = notmuch_database_open (path,
+ NOTMUCH_DATABASE_MODE_READ_WRITE,
+ ¬much);
+ if (status)
+ goto DONE;
+ status = notmuch_database_upgrade (notmuch, NULL, NULL);
+ if (status) {
+ notmuch_database_close(notmuch);
+ notmuch = NULL;
+ }
DONE:
if (notmuch_path)
talloc_free (notmuch_path);
- return notmuch;
+ if (database)
+ *database = notmuch;
+ else
+ talloc_free (notmuch);
+ return status;
}
notmuch_status_t
return NOTMUCH_STATUS_SUCCESS;
}
-notmuch_database_t *
+notmuch_status_t
notmuch_database_open (const char *path,
- notmuch_database_mode_t mode)
+ notmuch_database_mode_t mode,
+ notmuch_database_t **database)
{
+ notmuch_status_t status = NOTMUCH_STATUS_SUCCESS;
+ void *local = talloc_new (NULL);
notmuch_database_t *notmuch = NULL;
- char *notmuch_path = NULL, *xapian_path = NULL;
+ char *notmuch_path, *xapian_path;
struct stat st;
int err;
unsigned int i, version;
+ static int initialized = 0;
- if (asprintf (¬much_path, "%s/%s", path, ".notmuch") == -1) {
- notmuch_path = NULL;
+ if (path == NULL) {
+ fprintf (stderr, "Error: Cannot open a database for a NULL path.\n");
+ status = NOTMUCH_STATUS_NULL_POINTER;
+ goto DONE;
+ }
+
+ if (! (notmuch_path = talloc_asprintf (local, "%s/%s", path, ".notmuch"))) {
fprintf (stderr, "Out of memory\n");
+ status = NOTMUCH_STATUS_OUT_OF_MEMORY;
goto DONE;
}
if (err) {
fprintf (stderr, "Error opening database at %s: %s\n",
notmuch_path, strerror (errno));
+ status = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
- if (asprintf (&xapian_path, "%s/%s", notmuch_path, "xapian") == -1) {
- xapian_path = NULL;
+ if (! (xapian_path = talloc_asprintf (local, "%s/%s", notmuch_path, "xapian"))) {
fprintf (stderr, "Out of memory\n");
+ status = NOTMUCH_STATUS_OUT_OF_MEMORY;
goto DONE;
}
- notmuch = talloc (NULL, notmuch_database_t);
+ /* Initialize the GLib type system and threads */
+ g_type_init ();
+
+ /* Initialize gmime */
+ if (! initialized) {
+ g_mime_init (0);
+ initialized = 1;
+ }
+
+ notmuch = talloc_zero (NULL, notmuch_database_t);
notmuch->exception_reported = FALSE;
notmuch->path = talloc_strdup (notmuch, path);
notmuch->needs_upgrade = FALSE;
notmuch->mode = mode;
+ notmuch->atomic_nesting = 0;
try {
string last_thread_id;
" read-write mode.\n",
notmuch_path, version, NOTMUCH_DATABASE_VERSION);
notmuch->mode = NOTMUCH_DATABASE_MODE_READ_ONLY;
- notmuch_database_close (notmuch);
+ notmuch_database_destroy (notmuch);
notmuch = NULL;
+ status = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
} catch (const Xapian::Error &error) {
fprintf (stderr, "A Xapian exception occurred opening database: %s\n",
error.get_msg().c_str());
+ notmuch_database_destroy (notmuch);
notmuch = NULL;
+ status = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
DONE:
- if (notmuch_path)
- free (notmuch_path);
- if (xapian_path)
- free (xapian_path);
+ talloc_free (local);
- return notmuch;
+ if (database)
+ *database = notmuch;
+ else
+ talloc_free (notmuch);
+ return status;
}
void
notmuch_database_close (notmuch_database_t *notmuch)
{
try {
- if (notmuch->mode == NOTMUCH_DATABASE_MODE_READ_WRITE)
+ if (notmuch->xapian_db != NULL &&
+ notmuch->mode == NOTMUCH_DATABASE_MODE_READ_WRITE)
(static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db))->flush ();
} catch (const Xapian::Error &error) {
if (! notmuch->exception_reported) {
}
}
+ /* Many Xapian objects (and thus notmuch objects) hold references to
+ * the database, so merely deleting the database may not suffice to
+ * close it. Thus, we explicitly close it here. */
+ if (notmuch->xapian_db != NULL) {
+ try {
+ notmuch->xapian_db->close();
+ } catch (const Xapian::Error &error) {
+ /* do nothing */
+ }
+ }
+
delete notmuch->term_gen;
+ notmuch->term_gen = NULL;
delete notmuch->query_parser;
+ notmuch->query_parser = NULL;
delete notmuch->xapian_db;
+ notmuch->xapian_db = NULL;
delete notmuch->value_range_processor;
+ notmuch->value_range_processor = NULL;
+}
+
+void
+notmuch_database_destroy (notmuch_database_t *notmuch)
+{
+ notmuch_database_close (notmuch);
talloc_free (notmuch);
}
mtime = Xapian::sortable_unserialise (
document.get_value (NOTMUCH_VALUE_TIMESTAMP));
- directory = notmuch_database_get_directory (notmuch,
- term.c_str() + 10);
+ directory = _notmuch_directory_create (notmuch, term.c_str() + 10,
+ NOTMUCH_FIND_CREATE, &status);
notmuch_directory_set_mtime (directory, mtime);
notmuch_directory_destroy (directory);
}
notmuch_status_t
notmuch_database_begin_atomic (notmuch_database_t *notmuch)
{
- if (notmuch->mode == NOTMUCH_DATABASE_MODE_READ_ONLY)
- return NOTMUCH_STATUS_SUCCESS;
+ if (notmuch->mode == NOTMUCH_DATABASE_MODE_READ_ONLY ||
+ notmuch->atomic_nesting > 0)
+ goto DONE;
try {
(static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db))->begin_transaction (false);
notmuch->exception_reported = TRUE;
return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
+
+DONE:
+ notmuch->atomic_nesting++;
return NOTMUCH_STATUS_SUCCESS;
}
{
Xapian::WritableDatabase *db;
- if (notmuch->mode == NOTMUCH_DATABASE_MODE_READ_ONLY)
- return NOTMUCH_STATUS_SUCCESS;
+ if (notmuch->atomic_nesting == 0)
+ return NOTMUCH_STATUS_UNBALANCED_ATOMIC;
+
+ if (notmuch->mode == NOTMUCH_DATABASE_MODE_READ_ONLY ||
+ notmuch->atomic_nesting > 1)
+ goto DONE;
db = static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db);
try {
* However, we rely on flushing to test atomicity. */
const char *thresh = getenv ("XAPIAN_FLUSH_THRESHOLD");
if (thresh && atoi (thresh) == 1)
- db->commit ();
+ db->flush ();
} catch (const Xapian::Error &error) {
fprintf (stderr, "A Xapian exception occurred committing transaction: %s.\n",
error.get_msg().c_str());
notmuch->exception_reported = TRUE;
return NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
+
+DONE:
+ notmuch->atomic_nesting--;
return NOTMUCH_STATUS_SUCCESS;
}
return NOTMUCH_STATUS_SUCCESS;
}
+/* Find the document ID of the specified directory.
+ *
+ * If (flags & NOTMUCH_FIND_CREATE), a new directory document will be
+ * created if one does not exist for 'path'. Otherwise, if the
+ * directory document does not exist, this sets *directory_id to
+ * ((unsigned int)-1) and returns NOTMUCH_STATUS_SUCCESS.
+ */
notmuch_status_t
_notmuch_database_find_directory_id (notmuch_database_t *notmuch,
const char *path,
+ notmuch_find_flags_t flags,
unsigned int *directory_id)
{
notmuch_directory_t *directory;
return NOTMUCH_STATUS_SUCCESS;
}
- directory = _notmuch_directory_create (notmuch, path, &status);
- if (status) {
+ directory = _notmuch_directory_create (notmuch, path, flags, &status);
+ if (status || !directory) {
*directory_id = -1;
return status;
}
* database path), return a new string (with 'ctx' as the talloc
* owner) suitable for use as a direntry term value.
*
- * The necessary directory documents will be created in the database
- * as needed.
+ * If (flags & NOTMUCH_FIND_CREATE), the necessary directory documents
+ * will be created in the database as needed. Otherwise, if the
+ * necessary directory documents do not exist, this sets
+ * *direntry to NULL and returns NOTMUCH_STATUS_SUCCESS.
*/
notmuch_status_t
_notmuch_database_filename_to_direntry (void *ctx,
notmuch_database_t *notmuch,
const char *filename,
+ notmuch_find_flags_t flags,
char **direntry)
{
const char *relative, *directory, *basename;
if (status)
return status;
- status = _notmuch_database_find_directory_id (notmuch, directory,
+ status = _notmuch_database_find_directory_id (notmuch, directory, flags,
&directory_id);
- if (status)
+ if (status || directory_id == (unsigned int)-1) {
+ *direntry = NULL;
return status;
+ }
*direntry = talloc_asprintf (ctx, "%u:%s", directory_id, basename);
return relative;
}
-notmuch_directory_t *
+notmuch_status_t
notmuch_database_get_directory (notmuch_database_t *notmuch,
- const char *path)
+ const char *path,
+ notmuch_directory_t **directory)
{
notmuch_status_t status;
+ if (directory == NULL)
+ return NOTMUCH_STATUS_NULL_POINTER;
+ *directory = NULL;
+
try {
- return _notmuch_directory_create (notmuch, path, &status);
+ *directory = _notmuch_directory_create (notmuch, path,
+ NOTMUCH_FIND_LOOKUP, &status);
} catch (const Xapian::Error &error) {
fprintf (stderr, "A Xapian exception occurred getting directory: %s.\n",
error.get_msg().c_str());
notmuch->exception_reported = TRUE;
- return NULL;
+ status = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
+ return status;
}
/* Allocate a document ID that satisfies the following criteria:
/* Find the thread ID to which the message with 'message_id' belongs.
*
- * Always returns a newly talloced string belonging to 'ctx'.
+ * Note: 'thread_id_ret' must not be NULL!
+ * On success '*thread_id_ret' is set to a newly talloced string belonging to
+ * 'ctx'.
*
* Note: If there is no message in the database with the given
* 'message_id' then a new thread_id will be allocated for this
* thread ID can be looked up if the message is added to the database
* later).
*/
-static const char *
+static notmuch_status_t
_resolve_message_id_to_thread_id (notmuch_database_t *notmuch,
void *ctx,
- const char *message_id)
+ const char *message_id,
+ const char **thread_id_ret)
{
+ notmuch_status_t status;
notmuch_message_t *message;
string thread_id_string;
- const char *thread_id;
char *metadata_key;
Xapian::WritableDatabase *db;
- message = notmuch_database_find_message (notmuch, message_id);
+ status = notmuch_database_find_message (notmuch, message_id, &message);
+
+ if (status)
+ return status;
if (message) {
- thread_id = talloc_steal (ctx, notmuch_message_get_thread_id (message));
+ *thread_id_ret = talloc_steal (ctx,
+ notmuch_message_get_thread_id (message));
notmuch_message_destroy (message);
- return thread_id;
+ return NOTMUCH_STATUS_SUCCESS;
}
/* Message has not been seen yet.
thread_id_string = notmuch->xapian_db->get_metadata (metadata_key);
if (thread_id_string.empty()) {
- thread_id = _notmuch_database_generate_thread_id (notmuch);
- db->set_metadata (metadata_key, thread_id);
+ *thread_id_ret = talloc_strdup (ctx,
+ _notmuch_database_generate_thread_id (notmuch));
+ db->set_metadata (metadata_key, *thread_id_ret);
} else {
- thread_id = thread_id_string.c_str();
+ *thread_id_ret = talloc_strdup (ctx, thread_id_string.c_str());
}
talloc_free (metadata_key);
- return talloc_strdup (ctx, thread_id);
+ return NOTMUCH_STATUS_SUCCESS;
}
static notmuch_status_t
keys = g_hash_table_get_keys (parents);
for (l = keys; l; l = l->next) {
char *parent_message_id;
- const char *parent_thread_id;
+ const char *parent_thread_id = NULL;
parent_message_id = (char *) l->data;
_notmuch_message_add_term (message, "reference",
parent_message_id);
- parent_thread_id = _resolve_message_id_to_thread_id (notmuch,
- message,
- parent_message_id);
+ ret = _resolve_message_id_to_thread_id (notmuch,
+ message,
+ parent_message_id,
+ &parent_thread_id);
+ if (ret)
+ goto DONE;
if (*thread_id == NULL) {
*thread_id = talloc_strdup (message, parent_thread_id);
{
notmuch_message_file_t *message_file;
notmuch_message_t *message = NULL;
- notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS;
+ notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS, ret2;
notmuch_private_status_t private_status;
const char *date, *header;
if (message_file == NULL)
return NOTMUCH_STATUS_FILE_ERROR;
+ /* Adding a message may change many documents. Do this all
+ * atomically. */
+ ret = notmuch_database_begin_atomic (notmuch);
+ if (ret)
+ goto DONE;
+
notmuch_message_file_restrict_headers (message_file,
"date",
"from",
goto DONE;
date = notmuch_message_file_get_header (message_file, "date");
- _notmuch_message_set_date (message, date);
+ _notmuch_message_set_header_values (message, date, from, subject);
_notmuch_message_index_file (message, filename);
} else {
if (message_file)
notmuch_message_file_close (message_file);
+ ret2 = notmuch_database_end_atomic (notmuch);
+ if ((ret == NOTMUCH_STATUS_SUCCESS ||
+ ret == NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID) &&
+ ret2 != NOTMUCH_STATUS_SUCCESS)
+ ret = ret2;
+
return ret;
}
notmuch_database_remove_message (notmuch_database_t *notmuch,
const char *filename)
{
- Xapian::WritableDatabase *db;
+ notmuch_status_t status;
+ notmuch_message_t *message;
+
+ status = notmuch_database_find_message_by_filename (notmuch, filename,
+ &message);
+
+ if (status == NOTMUCH_STATUS_SUCCESS && message) {
+ status = _notmuch_message_remove_filename (message, filename);
+ if (status == NOTMUCH_STATUS_SUCCESS)
+ _notmuch_message_delete (message);
+ else if (status == NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID)
+ _notmuch_message_sync (message);
+
+ notmuch_message_destroy (message);
+ }
+
+ return status;
+}
+
+notmuch_status_t
+notmuch_database_find_message_by_filename (notmuch_database_t *notmuch,
+ const char *filename,
+ notmuch_message_t **message_ret)
+{
void *local;
const char *prefix = _find_prefix ("file-direntry");
char *direntry, *term;
Xapian::PostingIterator i, end;
- Xapian::Document document;
notmuch_status_t status;
- status = _notmuch_database_ensure_writable (notmuch);
- if (status)
- return status;
+ if (message_ret == NULL)
+ return NOTMUCH_STATUS_NULL_POINTER;
- local = talloc_new (notmuch);
+ /* return NULL on any failure */
+ *message_ret = NULL;
- db = static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db);
+ local = talloc_new (notmuch);
try {
-
- status = _notmuch_database_filename_to_direntry (local, notmuch,
- filename, &direntry);
- if (status)
- return status;
+ status = _notmuch_database_filename_to_direntry (
+ local, notmuch, filename, NOTMUCH_FIND_LOOKUP, &direntry);
+ if (status || !direntry)
+ goto DONE;
term = talloc_asprintf (local, "%s%s", prefix, direntry);
find_doc_ids_for_term (notmuch, term, &i, &end);
- for ( ; i != end; i++) {
- Xapian::TermIterator j;
- notmuch_message_t *message;
+ if (i != end) {
notmuch_private_status_t private_status;
- message = _notmuch_message_create (local, notmuch,
- *i, &private_status);
- if (message == NULL)
- return COERCE_STATUS (private_status,
- "Inconsistent document ID in datbase.");
-
- _notmuch_message_remove_filename (message, filename);
- _notmuch_message_sync (message);
-
- /* Take care to find document after sync'ing filename removal. */
- document = find_document_for_doc_id (notmuch, *i);
- j = document.termlist_begin ();
- j.skip_to (prefix);
-
- /* Was this the last file-direntry in the message? */
- if (j == document.termlist_end () ||
- strncmp ((*j).c_str (), prefix, strlen (prefix)))
- {
- db->delete_document (document.get_docid ());
- status = NOTMUCH_STATUS_SUCCESS;
- } else {
- status = NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID;
- }
+ *message_ret = _notmuch_message_create (notmuch, notmuch, *i,
+ &private_status);
+ if (*message_ret == NULL)
+ status = NOTMUCH_STATUS_OUT_OF_MEMORY;
}
} catch (const Xapian::Error &error) {
- fprintf (stderr, "Error: A Xapian exception occurred removing message: %s\n",
+ fprintf (stderr, "Error: A Xapian exception occurred finding message by filename: %s\n",
error.get_msg().c_str());
notmuch->exception_reported = TRUE;
status = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
+ DONE:
talloc_free (local);
+ if (status && *message_ret) {
+ notmuch_message_destroy (*message_ret);
+ *message_ret = NULL;
+ }
return status;
}