lib: constify arguments to notmuch_query_get_*

[notmuch] / lib / notmuch.h

diff --git a/lib/notmuch.h b/lib/notmuch.h
index 7e8e162db59376e2c76993b8cade609562a5bfc1..87756838d0727f77836e419a2e7f9d5384bb1033 100644 (file)
--- a/lib/notmuch.h
+++ b/lib/notmuch.h
@@ -56,7 +56,7 @@ NOTMUCH_BEGIN_DECLS
  * version in Makefile.local.
  */
 #define LIBNOTMUCH_MAJOR_VERSION       4
-#define LIBNOTMUCH_MINOR_VERSION       2
+#define LIBNOTMUCH_MINOR_VERSION       3
 #define LIBNOTMUCH_MICRO_VERSION       0
 
 #define NOTMUCH_DEPRECATED(major,minor) \
@@ -313,7 +313,7 @@ notmuch_database_open_verbose (const char *path,
  *
  */
 const char *
-notmuch_database_status_string (notmuch_database_t *notmuch);
+notmuch_database_status_string (const notmuch_database_t *notmuch);
 
 /**
  * Commit changes and close the given notmuch database.
@@ -467,6 +467,24 @@ notmuch_database_begin_atomic (notmuch_database_t *notmuch);
 notmuch_status_t
 notmuch_database_end_atomic (notmuch_database_t *notmuch);
 
+/**
+ * Return the committed database revision and UUID.
+ *
+ * The database revision number increases monotonically with each
+ * commit to the database.  Hence, all messages and message changes
+ * committed to the database (that is, visible to readers) have a last
+ * modification revision <= the committed database revision.  Any
+ * messages committed in the future will be assigned a modification
+ * revision > the committed database revision.
+ *
+ * The UUID is a NUL-terminated opaque string that uniquely identifies
+ * this database.  Two revision numbers are only comparable if they
+ * have the same database UUID.
+ */
+unsigned long
+notmuch_database_get_revision (notmuch_database_t *notmuch,
+                               const char **uuid);
+
 /**
  * Retrieve a directory object from the database for 'path'.
  *
@@ -710,7 +728,13 @@ typedef enum {
  * Return the query_string of this query. See notmuch_query_create.
  */
 const char *
-notmuch_query_get_query_string (notmuch_query_t *query);
+notmuch_query_get_query_string (const notmuch_query_t *query);
+
+/**
+ * Return the notmuch database of this query. See notmuch_query_create.
+ */
+notmuch_database_t *
+notmuch_query_get_database (const notmuch_query_t *query);
 
 /**
  * Exclude values for notmuch_query_set_omit_excluded. The strange
@@ -767,7 +791,7 @@ notmuch_query_set_sort (notmuch_query_t *query, notmuch_sort_t sort);
  * notmuch_query_set_sort.
  */
 notmuch_sort_t
-notmuch_query_get_sort (notmuch_query_t *query);
+notmuch_query_get_sort (const notmuch_query_t *query);
 
 /**
  * Add a tag that will be excluded from the query results by default.