Ticket #278: remove_max_changesets.diff

xapian-core/backends/brass/brass_database.cc

@@ -409 +409 @@
                         + changes_name + " to write";
                 throw Xapian::DatabaseError(message, errno);
             }
-        }
+
+            // while change sets less than N - max_changesets exist, delete them
+            int rev = old_revision - max_changesets;
+            if (rev > 0) {
+                    while(io_unlink(db_dir + "/changes" + str(rev--))) ;
+            }
+        }
     }
 
     try {

xapian-core/backends/chert/chert_database.cc

@@ -405 +405 @@
                                                "/changes" + str(old_revision),
                                                changes_name);
         }
+
+        // while change sets less than N - max_changesets exist, delete them
+        int rev = old_revision - max_changesets;
+        if (rev > 0) {
+                while(io_unlink(db_dir + "/changes" + str(rev--))) ;
+        }
     }
 
     try {

xapian-core/backends/flint/flint_database.cc

@@ -434 +434 @@
             changes_fd = create_changeset_file(db_dir,
                                                "/changes" + str(old_revision),
                                                changes_name);
-        }
+
+            // while change sets less than N - max_changesets exist, delete them
+            int rev = old_revision - max_changesets;
+            if (rev > 0) {
+                    while(io_unlink(db_dir + "/changes" + str(rev--))) ;
+            }
+        }
     }
 
     try {