lib/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  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  22  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  23  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  24  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  25  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  26  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  27  * SOFTWARE.
  28  */
  29
  30 #include <babeltrace/types.h>
  31 #include <babeltrace/format.h>
  32 #include <babeltrace/ctf/types.h>
  33 #include <babeltrace/ctf-ir/metadata.h>
  34 #include <babeltrace/trace-handle-internal.h>
  35 #include <babeltrace/context-internal.h>
  36 #include <sys/types.h>
  37 #include <dirent.h>
  38 #include <assert.h>
  39 #include <glib.h>
  40
  41 #define CTF_MAGIC       0xC1FC1FC1
  42 #define TSDL_MAGIC      0x75D11D57
  43
  44 struct ctf_file_stream {
  45         struct ctf_stream_definition parent;
  46         struct ctf_stream_pos pos;      /* current stream position */
  47 };
  48
  49 #define HEADER_END              char end_field
  50 #define header_sizeof(type)     offsetof(typeof(type), end_field)
  51
  52 struct metadata_packet_header {
  53         uint32_t magic;                 /* 0x75D11D57 */
  54         uint8_t  uuid[16];              /* Unique Universal Identifier */
  55         uint32_t checksum;              /* 0 if unused */
  56         uint32_t content_size;          /* in bits */
  57         uint32_t packet_size;           /* in bits */
  58         uint8_t  compression_scheme;    /* 0 if unused */
  59         uint8_t  encryption_scheme;     /* 0 if unused */
  60         uint8_t  checksum_scheme;       /* 0 if unused */
  61         uint8_t  major;                 /* CTF spec major version number */
  62         uint8_t  minor;                 /* CTF spec minor version number */
  63         HEADER_END;
  64 };
  65
  66 #endif /* _BABELTRACE_CTF_METADATA_H */