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+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+ 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/>.
+***/
+
+#pragma once
+
+#include <stdlib.h>
+
+#include "journal-file.h"
+
+struct iovec_wrapper {
+ struct iovec *iovec;
+ size_t size_bytes;
+ size_t count;
+};
+
+int iovw_put(struct iovec_wrapper *iovw, void* data, size_t len);
+void iovw_free_contents(struct iovec_wrapper *iovw);
+size_t iovw_size(struct iovec_wrapper *iovw);
+
+typedef struct Writer {
+ JournalFile *journal;
+ JournalMetrics metrics;
+ MMapCache *mmap;
+ uint64_t seqnum;
+} Writer;
+
+int writer_init(Writer *s);
+int writer_close(Writer *s);
+int writer_write(Writer *s,
+ struct iovec_wrapper *iovw,
+ dual_timestamp *ts,
+ bool compress,
+ bool seal);