X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=include%2Fbabeltrace%2Fctf%2Fmetadata.h;h=25baa3a95395e43b5b3f1d9bd48baf4bc41ae59f;hp=bb6dc6cb1042e2bc49d5b7327deb21d96d95473c;hb=2b9a764d5e9e90d1a84e9eb2d433679ad65e91bf;hpb=a072041756e3fd40aa3926bc1d2774befe58f0bb diff --git a/include/babeltrace/ctf/metadata.h b/include/babeltrace/ctf/metadata.h index bb6dc6cb..25baa3a9 100644 --- a/include/babeltrace/ctf/metadata.h +++ b/include/babeltrace/ctf/metadata.h @@ -20,14 +20,33 @@ */ #include +#include +#include +#include +#include #include #include #include +#define CTF_MAGIC 0xC1FC1FC1 +#define TSDL_MAGIC 0x75D11D57 + struct ctf_trace; +struct ctf_stream_class; struct ctf_stream; struct ctf_event; +struct ctf_stream { + struct ctf_stream_class *stream_class; + uint64_t timestamp; /* Current timestamp, in ns */ +}; + +struct ctf_file_stream { + uint64_t stream_id; + struct ctf_stream stream; + struct ctf_stream_pos pos; /* current stream position */ +}; + #define CTF_TRACE_SET_FIELD(ctf_trace, field) \ do { \ (ctf_trace)->field_mask |= CTF_TRACE_ ## field; \ @@ -44,24 +63,39 @@ struct ctf_event; struct ctf_trace { + struct trace_descriptor parent; /* root scope */ struct declaration_scope *root_declaration_scope; struct declaration_scope *declaration_scope; - GPtrArray *streams; /* Array of struct ctf_stream pointers*/ + /* innermost definition scope. to be used as parent of stream. */ + struct definition_scope *definition_scope; + GPtrArray *streams; /* Array of struct ctf_stream_class pointers */ + struct ctf_file_stream metadata; + + /* Declarations only used when parsing */ + struct declaration_struct *packet_header_decl; + + /* Definitions used afterward */ + struct definition_struct *packet_header; uint64_t major; uint64_t minor; uuid_t uuid; - uint64_t word_size; - int byte_order; + int byte_order; /* trace BYTE_ORDER. 0 if unset. */ enum { /* Fields populated mask */ - CTF_TRACE_major = (1U << 0), - CTF_TRACE_minor = (1U << 1), - CTF_TRACE_uuid = (1U << 2), - CTF_TRACE_word_size = (1U << 3), + CTF_TRACE_major = (1U << 0), + CTF_TRACE_minor = (1U << 1), + CTF_TRACE_uuid = (1U << 2), + CTF_TRACE_byte_order = (1U << 3), + CTF_TRACE_packet_header = (1U << 4), } field_mask; + + /* Information about trace backing directory and files */ + DIR *dir; + int dirfd; + int flags; /* open flags */ }; #define CTF_STREAM_SET_FIELD(ctf_stream, field) \ @@ -78,7 +112,7 @@ struct ctf_trace { (ctf_stream)->(field); \ }) -struct ctf_stream { +struct ctf_stream_class { struct ctf_trace *trace; /* parent is lexical scope conaining the stream scope */ struct declaration_scope *declaration_scope; @@ -102,6 +136,8 @@ struct ctf_stream { enum { /* Fields populated mask */ CTF_STREAM_stream_id = (1 << 0), } field_mask; + + GPtrArray *files; /* Array of struct ctf_file_stream pointers */ }; #define CTF_EVENT_SET_FIELD(ctf_event, field) \ @@ -120,7 +156,7 @@ struct ctf_stream { struct ctf_event { /* stream mapped by stream_id */ - struct ctf_stream *stream; + struct ctf_stream_class *stream; /* parent is lexical scope conaining the event scope */ struct declaration_scope *declaration_scope; @@ -143,4 +179,19 @@ struct ctf_event { } field_mask; }; +#define HEADER_END char end_field +#define header_sizeof(type) offsetof(typeof(type), end_field) + +struct metadata_packet_header { + uint32_t magic; /* 0x75D11D57 */ + uint8_t uuid[16]; /* Unique Universal Identifier */ + uint32_t checksum; /* 0 if unused */ + uint32_t content_size; /* in bits */ + uint32_t packet_size; /* in bits */ + uint8_t compression_scheme; /* 0 if unused */ + uint8_t encryption_scheme; /* 0 if unused */ + uint8_t checksum_scheme; /* 0 if unused */ + HEADER_END; +}; + #endif /* _BABELTRACE_CTF_METADATA_H */