journal: add a test case for flushing messages out of a series of journal files into a single new one

1 files changed, 71 insertions, 0 deletions

diff --git a/src/journal/test-journal-flush.c b/src/journal/test-journal-flush.c
new file mode 100644
index 0000000000..e61e87af10
--- /dev/null
+++ b/src/journal/test-journal-flush.c
@@ -0,0 +1,71 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+  This file is part of systemd.
+
+  Copyright 2013 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <fcntl.h>
+
+#include "sd-journal.h"
+#include "journal-file.h"
+#include "journal-internal.h"
+
+int main(int argc, char *argv[]) {
+
+        char fn[sizeof("/var/tmp/test-journal-flush-")-1 + DECIMAL_STR_MAX(pid_t) + sizeof(".journal")];
+        JournalFile *new_journal = NULL;
+        sd_journal *j = NULL;
+        unsigned n = 0;
+        int r;
+
+        sprintf(fn, "/var/tmp/test-journal-flush-%lu.journal", (unsigned long) getpid());
+
+        r = journal_file_open(fn, O_CREAT|O_RDWR, 0644, false, false, NULL, NULL, NULL, &new_journal);
+        assert_se(r >= 0);
+
+        unlink(fn);
+
+        r = sd_journal_open(&j, 0);
+        assert_se(r >= 0);
+
+        sd_journal_set_data_threshold(j, 0);
+
+        SD_JOURNAL_FOREACH(j) {
+                Object *o;
+                JournalFile *f;
+
+                f = j->current_file;
+                assert(f && f->current_offset > 0);
+
+                r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
+                assert(r >= 0);
+
+                r = journal_file_copy_entry(f, new_journal, o, f->current_offset, NULL, NULL, NULL);
+                assert(r >= 0);
+
+                n++;
+                if (n > 10000)
+                        break;
+        }
+
+        sd_journal_close(j);
+
+        journal_file_close(new_journal);
+
+        return 0;
+}