| 1 | #ifndef _BABELTRACE_CTF_IR_METADATA_H |
| 2 | #define _BABELTRACE_CTF_IR_METADATA_H |
| 3 | |
| 4 | /* |
| 5 | * BabelTrace |
| 6 | * |
| 7 | * CTF Intermediate Representation 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 <sys/types.h> |
| 26 | #include <dirent.h> |
| 27 | #include <uuid/uuid.h> |
| 28 | #include <assert.h> |
| 29 | #include <glib.h> |
| 30 | |
| 31 | struct ctf_trace; |
| 32 | struct ctf_stream_class; |
| 33 | struct ctf_stream; |
| 34 | struct ctf_event; |
| 35 | |
| 36 | struct ctf_stream { |
| 37 | struct ctf_stream_class *stream_class; |
| 38 | uint64_t timestamp; /* Current timestamp, in ns */ |
| 39 | uint64_t event_id; /* Current event ID */ |
| 40 | int has_timestamp; |
| 41 | uint64_t stream_id; |
| 42 | |
| 43 | struct definition_struct *trace_packet_header; |
| 44 | struct definition_struct *stream_packet_context; |
| 45 | struct definition_struct *stream_event_header; |
| 46 | struct definition_struct *stream_event_context; |
| 47 | GPtrArray *events_by_id; /* Array of struct ctf_stream_event pointers indexed by id */ |
| 48 | struct definition_scope *parent_def_scope; /* for initialization */ |
| 49 | int stream_definitions_created; |
| 50 | }; |
| 51 | |
| 52 | struct ctf_stream_event { |
| 53 | struct definition_struct *event_context; |
| 54 | struct definition_struct *event_fields; |
| 55 | }; |
| 56 | |
| 57 | #define CTF_CLOCK_SET_FIELD(ctf_clock, field) \ |
| 58 | do { \ |
| 59 | (ctf_clock)->field_mask |= CTF_CLOCK_ ## field; \ |
| 60 | } while (0) |
| 61 | |
| 62 | #define CTF_CLOCK_FIELD_IS_SET(ctf_clock, field) \ |
| 63 | ((ctf_clock)->field_mask & CTF_CLOCK_ ## field) |
| 64 | |
| 65 | #define CTF_CLOCK_GET_FIELD(ctf_clock, field) \ |
| 66 | ({ \ |
| 67 | assert(CTF_CLOCK_FIELD_IS_SET(ctf_clock, field)); \ |
| 68 | (ctf_clock)->(field); \ |
| 69 | }) |
| 70 | |
| 71 | struct ctf_clock { |
| 72 | GQuark name; |
| 73 | GQuark uuid; |
| 74 | char *description; |
| 75 | uint64_t freq; /* frequency, in HZ */ |
| 76 | /* precision in seconds is: precision * (1/freq) */ |
| 77 | uint64_t precision; |
| 78 | /* |
| 79 | * The offset from Epoch is: offset_s + (offset * (1/freq)) |
| 80 | * Coarse clock offset from Epoch (in seconds). |
| 81 | */ |
| 82 | uint64_t offset_s; |
| 83 | /* Fine clock offset from Epoch, in (1/freq) units. */ |
| 84 | uint64_t offset; |
| 85 | int absolute; |
| 86 | |
| 87 | enum { /* Fields populated mask */ |
| 88 | CTF_CLOCK_name = (1U << 0), |
| 89 | } field_mask; |
| 90 | }; |
| 91 | |
| 92 | #define CTF_TRACE_SET_FIELD(ctf_trace, field) \ |
| 93 | do { \ |
| 94 | (ctf_trace)->field_mask |= CTF_TRACE_ ## field; \ |
| 95 | } while (0) |
| 96 | |
| 97 | #define CTF_TRACE_FIELD_IS_SET(ctf_trace, field) \ |
| 98 | ((ctf_trace)->field_mask & CTF_TRACE_ ## field) |
| 99 | |
| 100 | #define CTF_TRACE_GET_FIELD(ctf_trace, field) \ |
| 101 | ({ \ |
| 102 | assert(CTF_TRACE_FIELD_IS_SET(ctf_trace, field)); \ |
| 103 | (ctf_trace)->(field); \ |
| 104 | }) |
| 105 | |
| 106 | struct ctf_trace { |
| 107 | struct trace_descriptor parent; |
| 108 | /* root scope */ |
| 109 | struct declaration_scope *root_declaration_scope; |
| 110 | |
| 111 | struct declaration_scope *declaration_scope; |
| 112 | /* innermost definition scope. to be used as parent of stream. */ |
| 113 | struct definition_scope *definition_scope; |
| 114 | GPtrArray *streams; /* Array of struct ctf_stream_class pointers */ |
| 115 | struct ctf_stream *metadata; |
| 116 | GHashTable *clocks; |
| 117 | |
| 118 | struct declaration_struct *packet_header_decl; |
| 119 | |
| 120 | uint64_t major; |
| 121 | uint64_t minor; |
| 122 | uuid_t uuid; |
| 123 | int byte_order; /* trace BYTE_ORDER. 0 if unset. */ |
| 124 | |
| 125 | enum { /* Fields populated mask */ |
| 126 | CTF_TRACE_major = (1U << 0), |
| 127 | CTF_TRACE_minor = (1U << 1), |
| 128 | CTF_TRACE_uuid = (1U << 2), |
| 129 | CTF_TRACE_byte_order = (1U << 3), |
| 130 | CTF_TRACE_packet_header = (1U << 4), |
| 131 | } field_mask; |
| 132 | |
| 133 | /* Information about trace backing directory and files */ |
| 134 | DIR *dir; |
| 135 | int dirfd; |
| 136 | int flags; /* open flags */ |
| 137 | |
| 138 | /* Heap of streams, ordered to always get the lowest timestam */ |
| 139 | struct ptr_heap *stream_heap; |
| 140 | char collection_path[PATH_MAX]; |
| 141 | char path[PATH_MAX]; |
| 142 | char domain[PATH_MAX]; |
| 143 | char procname[PATH_MAX]; |
| 144 | char vpid[PATH_MAX]; |
| 145 | }; |
| 146 | |
| 147 | #define CTF_STREAM_SET_FIELD(ctf_stream, field) \ |
| 148 | do { \ |
| 149 | (ctf_stream)->field_mask |= CTF_STREAM_ ## field; \ |
| 150 | } while (0) |
| 151 | |
| 152 | #define CTF_STREAM_FIELD_IS_SET(ctf_stream, field) \ |
| 153 | ((ctf_stream)->field_mask & CTF_STREAM_ ## field) |
| 154 | |
| 155 | #define CTF_STREAM_GET_FIELD(ctf_stream, field) \ |
| 156 | ({ \ |
| 157 | assert(CTF_STREAM_FIELD_IS_SET(ctf_stream, field)); \ |
| 158 | (ctf_stream)->(field); \ |
| 159 | }) |
| 160 | |
| 161 | struct ctf_stream_class { |
| 162 | struct ctf_trace *trace; |
| 163 | /* parent is lexical scope conaining the stream scope */ |
| 164 | struct declaration_scope *declaration_scope; |
| 165 | /* innermost definition scope. to be used as parent of event. */ |
| 166 | struct definition_scope *definition_scope; |
| 167 | GPtrArray *events_by_id; /* Array of struct ctf_event pointers indexed by id */ |
| 168 | GHashTable *event_quark_to_id; /* GQuark to numeric id */ |
| 169 | |
| 170 | struct declaration_struct *packet_context_decl; |
| 171 | struct declaration_struct *event_header_decl; |
| 172 | struct declaration_struct *event_context_decl; |
| 173 | |
| 174 | uint64_t stream_id; |
| 175 | |
| 176 | enum { /* Fields populated mask */ |
| 177 | CTF_STREAM_stream_id = (1 << 0), |
| 178 | } field_mask; |
| 179 | |
| 180 | GPtrArray *streams; /* Array of struct ctf_stream pointers */ |
| 181 | }; |
| 182 | |
| 183 | #define CTF_EVENT_SET_FIELD(ctf_event, field) \ |
| 184 | do { \ |
| 185 | (ctf_event)->field_mask |= CTF_EVENT_ ## field; \ |
| 186 | } while (0) |
| 187 | |
| 188 | #define CTF_EVENT_FIELD_IS_SET(ctf_event, field) \ |
| 189 | ((ctf_event)->field_mask & CTF_EVENT_ ## field) |
| 190 | |
| 191 | #define CTF_EVENT_GET_FIELD(ctf_event, field) \ |
| 192 | ({ \ |
| 193 | assert(CTF_EVENT_FIELD_IS_SET(ctf_event, field)); \ |
| 194 | (ctf_event)->(field); \ |
| 195 | }) |
| 196 | |
| 197 | struct ctf_event { |
| 198 | /* stream mapped by stream_id */ |
| 199 | struct ctf_stream_class *stream; |
| 200 | /* parent is lexical scope conaining the event scope */ |
| 201 | struct declaration_scope *declaration_scope; |
| 202 | |
| 203 | struct declaration_struct *context_decl; |
| 204 | struct declaration_struct *fields_decl; |
| 205 | |
| 206 | GQuark name; |
| 207 | uint64_t id; /* Numeric identifier within the stream */ |
| 208 | uint64_t stream_id; |
| 209 | GQuark loglevel_identifier; |
| 210 | int64_t loglevel_value; |
| 211 | |
| 212 | enum { /* Fields populated mask */ |
| 213 | CTF_EVENT_name = (1 << 0), |
| 214 | CTF_EVENT_id = (1 << 1), |
| 215 | CTF_EVENT_stream_id = (1 << 2), |
| 216 | CTF_EVENT_loglevel_identifier = (1 << 3), |
| 217 | CTF_EVENT_loglevel_value = (1 << 4), |
| 218 | } field_mask; |
| 219 | }; |
| 220 | |
| 221 | #endif /* _BABELTRACE_CTF_IR_METADATA_H */ |