include/babeltrace/format.h

   1 #ifndef _BABELTRACE_FORMAT_H
   2 #define _BABELTRACE_FORMAT_H
   3
   4 /*
   5  * BabelTrace
   6  *
   7  * Trace Format Header
   8  *
   9  * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
  10  *
  11  * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  12  *
  13  * Permission is hereby granted, free of charge, to any person obtaining a copy
  14  * of this software and associated documentation files (the "Software"), to deal
  15  * in the Software without restriction, including without limitation the rights
  16  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  17  * copies of the Software, and to permit persons to whom the Software is
  18  * furnished to do so, subject to the following conditions:
  19  *
  20  * The above copyright notice and this permission notice shall be included in
  21  * all copies or substantial portions of the Software.
  22  */
  23
  24 #include <babeltrace/types.h>
  25 #include <babeltrace/ctf/types.h>
  26 #include <stdint.h>
  27 #include <stdio.h>
  28 #include <glib.h>
  29
  30 /* Parent trace descriptor */
  31 struct trace_descriptor {
  32 };
  33
  34 struct mmap_stream {
  35         int fd;
  36         struct cds_list_head list;
  37 };
  38
  39 struct mmap_stream_list {
  40         struct cds_list_head head;
  41 };
  42
  43 struct format {
  44         GQuark name;
  45
  46         struct trace_descriptor *(*open_trace)(const char *collection_path,
  47                         const char *path, int flags,
  48                         void (*move_pos_slow)(struct ctf_stream_pos *pos, size_t offset,
  49                                 int whence), FILE *metadata_fp);
  50         struct trace_descriptor *(*open_mmap_trace)(
  51                         struct mmap_stream_list *mmap_list,
  52                         void (*move_pos_slow)(struct ctf_stream_pos *pos, size_t offset,
  53                                 int whence), FILE *metadata_fp);
  54         void (*close_trace)(struct trace_descriptor *descriptor);
  55 };
  56
  57 extern struct format *bt_lookup_format(GQuark qname);
  58 extern void bt_fprintf_format_list(FILE *fp);
  59 extern int bt_register_format(struct format *format);
  60
  61 /* TBD: format unregistration */
  62
  63 #endif /* _BABELTRACE_FORMAT_H */