X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=include%2Fbabeltrace%2Ftypes.h;fp=include%2Fbabeltrace%2Ftypes.h;h=0000000000000000000000000000000000000000;hp=b4198c8f8b7c01017c79a4ab27c38899c64a89ba;hb=dc3fffef7b84cc4af1a7c99828fd57a106cd2257;hpb=f3985ab106d89d8e764c1a8dd0c8bda09b755d10 diff --git a/include/babeltrace/types.h b/include/babeltrace/types.h deleted file mode 100644 index b4198c8f..00000000 --- a/include/babeltrace/types.h +++ /dev/null @@ -1,565 +0,0 @@ -#ifndef _BABELTRACE_TYPES_H -#define _BABELTRACE_TYPES_H - -/* - * BabelTrace - * - * Type Header - * - * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation - * - * Author: Mathieu Desnoyers - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* Preallocate this many fields for structures */ -#define DEFAULT_NR_STRUCT_FIELDS 8 - -struct ctf_stream_definition; -struct bt_stream_pos; -struct bt_format; -struct bt_definition; -struct ctf_clock; - -/* type scope */ -struct declaration_scope { - /* Hash table mapping type name GQuark to "struct declaration" */ - /* Used for both typedef and typealias. */ - GHashTable *typedef_declarations; - /* Hash table mapping struct name GQuark to "struct declaration_struct" */ - GHashTable *struct_declarations; - /* Hash table mapping variant name GQuark to "struct declaration_variant" */ - GHashTable *variant_declarations; - /* Hash table mapping enum name GQuark to "struct type_enum" */ - GHashTable *enum_declarations; - struct declaration_scope *parent_scope; -}; - -/* definition scope */ -struct definition_scope { - /* Hash table mapping field name GQuark to "struct definition" */ - GHashTable *definitions; - struct definition_scope *parent_scope; - /* - * Complete "path" leading to this definition scope. - * Includes dynamic scope name '.' field name '.' field name '.' .... - * Array of GQuark elements (which are each separated by dots). - * The dynamic scope name can contain dots, and is encoded into - * a single GQuark. Thus, scope_path[0] returns the GQuark - * identifying the dynamic scope. - */ - GArray *scope_path; /* array of GQuark */ -}; - -struct bt_declaration { - enum bt_ctf_type_id id; - size_t alignment; /* type alignment, in bits */ - int ref; /* number of references to the type */ - /* - * declaration_free called with declaration ref is decremented to 0. - */ - void (*declaration_free)(struct bt_declaration *declaration); - struct bt_definition * - (*definition_new)(struct bt_declaration *declaration, - struct definition_scope *parent_scope, - GQuark field_name, int index, - const char *root_name); - /* - * definition_free called with definition ref is decremented to 0. - */ - void (*definition_free)(struct bt_definition *definition); -}; - -struct bt_definition { - struct bt_declaration *declaration; - int index; /* Position of the definition in its container */ - GQuark name; /* Field name in its container (or 0 if unset) */ - int ref; /* number of references to the definition */ - GQuark path; - struct definition_scope *scope; -}; - -typedef int (*rw_dispatch)(struct bt_stream_pos *pos, - struct bt_definition *definition); - -/* Parent of per-plugin positions */ -struct bt_stream_pos { - /* read/write dispatch table. Specific to plugin used for stream. */ - rw_dispatch *rw_table; /* rw dispatch table */ - int (*event_cb)(struct bt_stream_pos *pos, - struct ctf_stream_definition *stream); - int (*pre_trace_cb)(struct bt_stream_pos *pos, - struct bt_trace_descriptor *trace); - int (*post_trace_cb)(struct bt_stream_pos *pos, - struct bt_trace_descriptor *trace); - struct bt_trace_descriptor *trace; -}; - -static inline -int generic_rw(struct bt_stream_pos *pos, struct bt_definition *definition) -{ - enum bt_ctf_type_id dispatch_id = definition->declaration->id; - rw_dispatch call; - - assert(pos->rw_table[dispatch_id] != NULL); - call = pos->rw_table[dispatch_id]; - return call(pos, definition); -} - -/* - * Because we address in bits, bitfields end up being exactly the same as - * integers, except that their read/write functions must be able to deal with - * read/write non aligned on CHAR_BIT. - */ -struct declaration_integer { - struct bt_declaration p; - size_t len; /* length, in bits. */ - int byte_order; /* LITTLE_ENDIAN/BIG_ENDIAN, 0 == "Native" */ - int signedness; - int base; /* Base for pretty-printing: 2, 8, 10, 16 */ - enum ctf_string_encoding encoding; - struct ctf_clock *clock; -}; - -#ifdef ENABLE_DEBUG_INFO -struct debug_info_source; -#endif - -struct definition_integer { - struct bt_definition p; - struct declaration_integer *declaration; - /* Last values read */ - union { - uint64_t _unsigned; - int64_t _signed; - } value; - -#ifdef ENABLE_DEBUG_INFO - /* - * Debug infos (NULL if not set). - * - * This is extended debug informations set by the CTF input plugin - * itself when available. If it's set, then this integer definition - * is the "_ip" field of the stream event context. - */ - struct debug_info_source *debug_info_src; -#endif -}; - -struct declaration_float { - struct bt_declaration p; - struct declaration_integer *sign; - struct declaration_integer *mantissa; - struct declaration_integer *exp; - int byte_order; /* LITTLE_ENDIAN/BIG_ENDIAN, 0 == "Native" */ - /* TODO: we might want to express more info about NaN, +inf and -inf */ -}; - -struct definition_float { - struct bt_definition p; - struct declaration_float *declaration; - struct definition_integer *sign; - struct definition_integer *mantissa; - struct definition_integer *exp; - /* Last values read */ - double value; -}; - -/* - * enum_val_equal assumes that signed and unsigned memory layout overlap. - */ -struct enum_range { - union { - int64_t _signed; - uint64_t _unsigned; - } start; /* lowest range value */ - union { - int64_t _signed; - uint64_t _unsigned; - } end; /* highest range value */ -}; - -struct enum_range_to_quark { - struct bt_list_head node; - struct enum_range range; - GQuark quark; -}; - -/* - * We optimize the common case (range of size 1: single value) by creating a - * hash table mapping values to quark sets. We then lookup the ranges to - * complete the quark set. - * - * TODO: The proper structure to hold the range to quark set mapping would be an - * interval tree, with O(n) size, O(n*log(n)) build time and O(log(n)) query - * time. Using a simple O(n) list search for now for implementation speed and - * given that we can expect to have a _relatively_ small number of enumeration - * ranges. This might become untrue if we are fed with symbol tables often - * required to lookup function names from instruction pointer value. - */ -struct enum_table { - GHashTable *value_to_quark_set; /* (value, GQuark GArray) */ - struct bt_list_head range_to_quark; /* (range, GQuark) */ - GHashTable *quark_to_range_set; /* (GQuark, range GArray) */ -}; - -struct declaration_enum { - struct bt_declaration p; - struct declaration_integer *integer_declaration; - struct enum_table table; -}; - -struct definition_enum { - struct bt_definition p; - struct definition_integer *integer; - struct declaration_enum *declaration; - /* Last GQuark values read. Keeping a reference on the GQuark array. */ - GArray *value; -}; - -struct declaration_string { - struct bt_declaration p; - enum ctf_string_encoding encoding; -}; - -struct definition_string { - struct bt_definition p; - struct declaration_string *declaration; - char *value; /* freed at definition_string teardown */ - size_t len, alloc_len; -}; - -struct declaration_field { - GQuark name; - struct bt_declaration *declaration; -}; - -struct declaration_struct { - struct bt_declaration p; - GHashTable *fields_by_name; /* Tuples (field name, field index) */ - struct declaration_scope *scope; - GArray *fields; /* Array of declaration_field */ -}; - -struct definition_struct { - struct bt_definition p; - struct declaration_struct *declaration; - GPtrArray *fields; /* Array of pointers to struct bt_definition */ -}; - -struct declaration_untagged_variant { - struct bt_declaration p; - GHashTable *fields_by_tag; /* Tuples (field tag, field index) */ - struct declaration_scope *scope; - GArray *fields; /* Array of declaration_field */ -}; - -struct declaration_variant { - struct bt_declaration p; - struct declaration_untagged_variant *untagged_variant; - GArray *tag_name; /* Array of GQuark */ -}; - -/* A variant needs to be tagged to be defined. */ -struct definition_variant { - struct bt_definition p; - struct declaration_variant *declaration; - struct bt_definition *enum_tag; - GPtrArray *fields; /* Array of pointers to struct bt_definition */ - struct bt_definition *current_field; /* Last field read */ -}; - -struct declaration_array { - struct bt_declaration p; - size_t len; - struct bt_declaration *elem; - struct declaration_scope *scope; -}; - -struct definition_array { - struct bt_definition p; - struct declaration_array *declaration; - GPtrArray *elems; /* Array of pointers to struct bt_definition */ - GString *string; /* String for encoded integer children */ -}; - -struct declaration_sequence { - struct bt_declaration p; - GArray *length_name; /* Array of GQuark */ - struct bt_declaration *elem; - struct declaration_scope *scope; -}; - -struct definition_sequence { - struct bt_definition p; - struct declaration_sequence *declaration; - struct definition_integer *length; - GPtrArray *elems; /* Array of pointers to struct bt_definition */ - GString *string; /* String for encoded integer children */ -}; - -int bt_register_declaration(GQuark declaration_name, - struct bt_declaration *declaration, - struct declaration_scope *scope); -struct bt_declaration *bt_lookup_declaration(GQuark declaration_name, - struct declaration_scope *scope); - -/* - * Type scopes also contain a separate registry for struct, variant and - * enum types. Those register types rather than type definitions, so - * that a named variant can be declared without specifying its target - * "choice" tag field immediately. - */ -int bt_register_struct_declaration(GQuark struct_name, - struct declaration_struct *struct_declaration, - struct declaration_scope *scope); -struct declaration_struct * - bt_lookup_struct_declaration(GQuark struct_name, - struct declaration_scope *scope); -int bt_register_variant_declaration(GQuark variant_name, - struct declaration_untagged_variant *untagged_variant_declaration, - struct declaration_scope *scope); -struct declaration_untagged_variant *bt_lookup_variant_declaration(GQuark variant_name, - struct declaration_scope *scope); -int bt_register_enum_declaration(GQuark enum_name, - struct declaration_enum *enum_declaration, - struct declaration_scope *scope); -struct declaration_enum * - bt_lookup_enum_declaration(GQuark enum_name, - struct declaration_scope *scope); - -struct declaration_scope * - bt_new_declaration_scope(struct declaration_scope *parent_scope); -void bt_free_declaration_scope(struct declaration_scope *scope); - -/* - * field_definition is for field definitions. They are registered into - * definition scopes. - */ -struct bt_definition * - bt_lookup_path_definition(GArray *cur_path, /* array of GQuark */ - GArray *lookup_path, /* array of GQuark */ - struct definition_scope *scope); -int bt_register_field_definition(GQuark field_name, - struct bt_definition *definition, - struct definition_scope *scope); -struct definition_scope * - bt_new_definition_scope(struct definition_scope *parent_scope, - GQuark field_name, const char *root_name); -void bt_free_definition_scope(struct definition_scope *scope); - -GQuark bt_new_definition_path(struct definition_scope *parent_scope, - GQuark field_name, const char *root_name); - -static inline -int compare_definition_path(struct bt_definition *definition, GQuark path) -{ - return definition->path == path; -} - -void bt_declaration_ref(struct bt_declaration *declaration); -void bt_declaration_unref(struct bt_declaration *declaration); - -void bt_definition_ref(struct bt_definition *definition); -void bt_definition_unref(struct bt_definition *definition); - -struct declaration_integer *bt_integer_declaration_new(size_t len, int byte_order, - int signedness, size_t alignment, - int base, enum ctf_string_encoding encoding, - struct ctf_clock *clock); -uint64_t bt_get_unsigned_int(const struct bt_definition *field); -int64_t bt_get_signed_int(const struct bt_definition *field); -int bt_get_int_signedness(const struct bt_definition *field); -int bt_get_int_byte_order(const struct bt_definition *field); -int bt_get_int_base(const struct bt_definition *field); -size_t bt_get_int_len(const struct bt_definition *field); /* in bits */ -enum ctf_string_encoding bt_get_int_encoding(const struct bt_definition *field); - -/* - * mantissa_len is the length of the number of bytes represented by the mantissa - * (e.g. result of DBL_MANT_DIG). It includes the leading 1. - */ -struct declaration_float *bt_float_declaration_new(size_t mantissa_len, - size_t exp_len, int byte_order, - size_t alignment); - -/* - * A GQuark can be translated to/from strings with g_quark_from_string() and - * g_quark_to_string(). - */ - -/* - * Returns a GArray of GQuark or NULL. - * Caller must release the GArray with g_array_unref(). - */ -GArray *bt_enum_uint_to_quark_set(const struct declaration_enum *enum_declaration, - uint64_t v); - -/* - * Returns a GArray of GQuark or NULL. - * Caller must release the GArray with g_array_unref(). - */ -GArray *bt_enum_int_to_quark_set(const struct declaration_enum *enum_declaration, - int64_t v); - -/* - * Returns a GArray of struct enum_range or NULL. - * Callers do _not_ own the returned GArray (and therefore _don't_ need to - * release it). - */ -GArray *bt_enum_quark_to_range_set(const struct declaration_enum *enum_declaration, - GQuark q); -void bt_enum_signed_insert(struct declaration_enum *enum_declaration, - int64_t start, int64_t end, GQuark q); -void bt_enum_unsigned_insert(struct declaration_enum *enum_declaration, - uint64_t start, uint64_t end, GQuark q); -size_t bt_enum_get_nr_enumerators(struct declaration_enum *enum_declaration); - -struct declaration_enum * - bt_enum_declaration_new(struct declaration_integer *integer_declaration); - -struct declaration_string * - bt_string_declaration_new(enum ctf_string_encoding encoding); -char *bt_get_string(const struct bt_definition *field); -enum ctf_string_encoding bt_get_string_encoding(const struct bt_definition *field); - -double bt_get_float(const struct bt_definition *field); - -const struct bt_definition *bt_get_variant_field(struct bt_definition *definition); - -struct declaration_struct * - bt_struct_declaration_new(struct declaration_scope *parent_scope, - uint64_t min_align); -void bt_struct_declaration_add_field(struct declaration_struct *struct_declaration, - const char *field_name, - struct bt_declaration *field_declaration); -/* - * Returns the index of a field within a structure. - */ -int bt_struct_declaration_lookup_field_index(struct declaration_struct *struct_declaration, - GQuark field_name); -/* - * field returned only valid as long as the field structure is not appended to. - */ -struct declaration_field * -bt_struct_declaration_get_field_from_index(struct declaration_struct *struct_declaration, - int index); -struct bt_definition * -bt_struct_definition_get_field_from_index(const struct definition_struct *struct_definition, - int index); -int bt_struct_rw(struct bt_stream_pos *pos, struct bt_definition *definition); -uint64_t bt_struct_declaration_len(const struct declaration_struct *struct_declaration); - -/* - * The tag enumeration is validated to ensure that it contains only mappings - * from numeric values to a single tag. Overlapping tag value ranges are - * therefore forbidden. - */ -struct declaration_untagged_variant *bt_untagged_bt_variant_declaration_new( - struct declaration_scope *parent_scope); -struct declaration_variant *bt_variant_declaration_new(struct declaration_untagged_variant *untagged_variant, - const char *tag); - -void bt_untagged_variant_declaration_add_field(struct declaration_untagged_variant *untagged_variant_declaration, - const char *field_name, - struct bt_declaration *field_declaration); -struct declaration_field * - bt_untagged_variant_declaration_get_field_from_tag(struct declaration_untagged_variant *untagged_variant_declaration, - GQuark tag); -/* - * Returns 0 on success, -EPERM on error. - */ -int variant_definition_set_tag(struct definition_variant *variant, - struct bt_definition *enum_tag); -/* - * Returns the field selected by the current tag value. - * field returned only valid as long as the variant structure is not appended - * to. - */ -struct bt_definition *bt_variant_get_current_field(struct definition_variant *variant); -int bt_variant_rw(struct bt_stream_pos *pos, struct bt_definition *definition); - -/* - * elem_declaration passed as parameter now belongs to the array. No - * need to free it explicitly. "len" is the number of elements in the - * array. - */ -struct declaration_array * - bt_array_declaration_new(size_t len, struct bt_declaration *elem_declaration, - struct declaration_scope *parent_scope); -uint64_t bt_array_len(struct definition_array *array); -struct bt_definition *bt_array_index(struct definition_array *array, uint64_t i); -int bt_array_rw(struct bt_stream_pos *pos, struct bt_definition *definition); -GString *bt_get_char_array(const struct bt_definition *field); -int bt_get_array_len(const struct bt_definition *field); - -/* - * int_declaration and elem_declaration passed as parameter now belong - * to the sequence. No need to free them explicitly. - */ -struct declaration_sequence * - bt_sequence_declaration_new(const char *length_name, - struct bt_declaration *elem_declaration, - struct declaration_scope *parent_scope); -uint64_t bt_sequence_len(struct definition_sequence *sequence); -struct bt_definition *bt_sequence_index(struct definition_sequence *sequence, uint64_t i); -int bt_sequence_rw(struct bt_stream_pos *pos, struct bt_definition *definition); - -/* - * in: path (dot separated), out: q (GArray of GQuark) - */ -void bt_append_scope_path(const char *path, GArray *q); - -/* - * Lookup helpers. - */ -struct bt_definition *bt_lookup_definition(const struct bt_definition *definition, - const char *field_name); -struct bt_definition *bt_lookup_definition_by_quark(const struct bt_definition *definition, - GQuark quark); -struct definition_integer *bt_lookup_integer(const struct bt_definition *definition, - const char *field_name, - int signedness); -struct definition_enum *bt_lookup_enum(const struct bt_definition *definition, - const char *field_name, - int signedness); -struct bt_definition *bt_lookup_variant(const struct bt_definition *definition, - const char *field_name); - -static inline -const char *rem_(const char *str) -{ - if (str[0] == '_') - return &str[1]; - else - return str; -} - -#endif /* _BABELTRACE_TYPES_H */