include/babeltrace/ctf/metadata.h

   1 #ifndef _BABELTRACE_CTF_METADATA_H
   2 #define _BABELTRACE_CTF_METADATA_H
   3
   4 /*
   5  * BabelTrace
   6  *
   7  * CTF Metadata Header
   8  *
   9  * Copyright 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  10  *
  11  * Permission is hereby granted, free of charge, to any person obtaining a copy
  12  * of this software and associated documentation files (the "Software"), to deal
  13  * in the Software without restriction, including without limitation the rights
  14  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  15  * copies of the Software, and to permit persons to whom the Software is
  16  * furnished to do so, subject to the following conditions:
  17  *
  18  * The above copyright notice and this permission notice shall be included in
  19  * all copies or substantial portions of the Software.
  20  */
  21
  22 #include <babeltrace/types.h>
  23 #include <babeltrace/format.h>
  24 #include <babeltrace/ctf/types.h>
  25 #include <babeltrace/ctf-ir/metadata.h>
  26 #include <babeltrace/trace-handle-internal.h>
  27 #include <babeltrace/context-internal.h>
  28 #include <sys/types.h>
  29 #include <dirent.h>
  30 #include <assert.h>
  31 #include <glib.h>
  32
  33 #define CTF_MAGIC       0xC1FC1FC1
  34 #define TSDL_MAGIC      0x75D11D57
  35
  36 struct ctf_file_stream {
  37         struct ctf_stream parent;
  38         struct ctf_stream_pos pos;      /* current stream position */
  39 };
  40
  41 #define HEADER_END              char end_field
  42 #define header_sizeof(type)     offsetof(typeof(type), end_field)
  43
  44 struct metadata_packet_header {
  45         uint32_t magic;                 /* 0x75D11D57 */
  46         uint8_t  uuid[16];              /* Unique Universal Identifier */
  47         uint32_t checksum;              /* 0 if unused */
  48         uint32_t content_size;          /* in bits */
  49         uint32_t packet_size;           /* in bits */
  50         uint8_t  compression_scheme;    /* 0 if unused */
  51         uint8_t  encryption_scheme;     /* 0 if unused */
  52         uint8_t  checksum_scheme;       /* 0 if unused */
  53         uint8_t  major;                 /* CTF spec major version number */
  54         uint8_t  minor;                 /* CTF spec minor version number */
  55         HEADER_END;
  56 };
  57
  58 #endif /* _BABELTRACE_CTF_METADATA_H */