journal-remote: tool to receive messages over the network

[elogind.git] / src / journal / journal-remote-parse.h

diff --git a/src/journal/journal-remote-parse.h b/src/journal/journal-remote-parse.h
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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 "sd-event.h"
+#include "journal-remote-write.h"
+
+typedef enum {
+        STATE_LINE = 0,    /* waiting to read, or reading line */
+        STATE_DATA_START,  /* reading binary data header */
+        STATE_DATA,        /* reading binary data */
+        STATE_DATA_FINISH, /* expecting newline */
+        STATE_EOF,         /* done */
+} source_state;
+
+typedef struct RemoteSource {
+        char* name;
+        int fd;
+
+        char *buf;
+        size_t size;
+        size_t filled;
+        size_t data_size;
+
+        struct iovec_wrapper iovw;
+
+        source_state state;
+        dual_timestamp ts;
+
+        sd_event_source *event;
+} RemoteSource;
+
+static inline int source_non_empty(RemoteSource *source) {
+        assert(source);
+
+        return source->filled > 0;
+}
+
+void source_free(RemoteSource *source);
+int process_data(RemoteSource *source);
+int process_source(RemoteSource *source, Writer *writer, bool compress, bool seal);