src/journal/journal-remote-parse.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2014 Zbigniew Jędrzejewski-Szmek
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU Lesser General Public License as published by
  10   the Free Software Foundation; either version 2.1 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   Lesser General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #pragma once
  23
  24 #include "sd-event.h"
  25 #include "journal-remote-write.h"
  26
  27 typedef enum {
  28         STATE_LINE = 0,    /* waiting to read, or reading line */
  29         STATE_DATA_START,  /* reading binary data header */
  30         STATE_DATA,        /* reading binary data */
  31         STATE_DATA_FINISH, /* expecting newline */
  32         STATE_EOF,         /* done */
  33 } source_state;
  34
  35 typedef struct RemoteSource {
  36         char* name;
  37         int fd;
  38
  39         char *buf;
  40         size_t size;
  41         size_t filled;
  42         size_t data_size;
  43
  44         struct iovec_wrapper iovw;
  45
  46         source_state state;
  47         dual_timestamp ts;
  48
  49         sd_event_source *event;
  50 } RemoteSource;
  51
  52 static inline int source_non_empty(RemoteSource *source) {
  53         assert(source);
  54
  55         return source->filled > 0;
  56 }
  57
  58 void source_free(RemoteSource *source);
  59 int process_data(RemoteSource *source);
  60 int push_data(RemoteSource *source, const char *data, size_t size);
  61 int process_source(RemoteSource *source, Writer *writer, bool compress, bool seal);