lib/open: track which parameters are passed

[notmuch] / lib / database-private.h

diff --git a/lib/database-private.h b/lib/database-private.h
index 8b9d67feec7044934c6eff8d3a1b03d1bdb1fbc1..8dd7728113335bd7c051ebf536bc8575d596b2a3 100644 (file)
--- a/lib/database-private.h
+++ b/lib/database-private.h
@@ -190,6 +190,39 @@ operator& (notmuch_field_flag_t a, notmuch_field_flag_t b)
                                    Xapian::QueryParser::FLAG_WILDCARD | \
                                    Xapian::QueryParser::FLAG_PURE_NOT)
 
+/*
+ * Which parameters were explicit when the database was opened */
+typedef enum {
+    NOTMUCH_PARAM_NONE         = 0,
+    NOTMUCH_PARAM_DATABASE     = 1 << 0,
+    NOTMUCH_PARAM_CONFIG       = 1 << 1,
+    NOTMUCH_PARAM_PROFILE      = 1 << 2,
+} notmuch_open_param_t;
+
+/*
+ * define bitwise operators to hide casts */
+
+inline notmuch_open_param_t
+operator| (notmuch_open_param_t a, notmuch_open_param_t b)
+{
+    return static_cast<notmuch_open_param_t>(
+       static_cast<unsigned>(a) | static_cast<unsigned>(b));
+}
+
+inline notmuch_open_param_t&
+operator|= (notmuch_open_param_t &a, notmuch_open_param_t b)
+{
+    a = a | b;
+    return a;
+}
+
+inline notmuch_open_param_t
+operator& (notmuch_open_param_t a, notmuch_open_param_t b)
+{
+    return static_cast<notmuch_open_param_t>(
+       static_cast<unsigned>(a) & static_cast<unsigned>(b));
+}
+
 struct _notmuch_database {
     bool exception_reported;
 
@@ -249,6 +282,9 @@ struct _notmuch_database {
 
     /* Cached and possibly overridden configuration */
     notmuch_string_map_t *config;
+
+    /* Track what parameters were specified when opening */
+    notmuch_open_param_t params;
 };
 
 /* Prior to database version 3, features were implied by the database