move struct ctf_stream -> struct ctf_stream_class

[babeltrace.git] / include / babeltrace / types.h

diff --git a/include/babeltrace/types.h b/include/babeltrace/types.h
index c44ea2ddbaab3e5bff4aa7072b3ad52062c6ad8b..fa543bf2ddaed57323aea6d4331ce2ce7586e477 100644 (file)
--- a/include/babeltrace/types.h
+++ b/include/babeltrace/types.h
@@ -31,6 +31,7 @@
 /* Preallocate this many fields for structures */
 #define DEFAULT_NR_STRUCT_FIELDS 8
 
+struct ctf_stream_class;
 struct stream_pos;
 struct format;
 struct definition;
@@ -100,27 +101,31 @@ struct declaration {
 struct definition {
        struct 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;
 };
 
-typedef void (*rw_dispatch)(struct stream_pos *pos,
-                           struct definition *definition);
+typedef int (*rw_dispatch)(struct stream_pos *pos,
+                          struct definition *definition);
 
 /* Parent of per-plugin positions */
 struct stream_pos {
        /* read/write dispatch table. Specific to plugin used for stream. */
        rw_dispatch *rw_table;  /* rw dispatch table */
+       int (*event_cb)(struct stream_pos *pos,
+                       struct ctf_stream_class *stream_class);
 };
 
 static inline
-void generic_rw(struct stream_pos *pos, struct definition *definition)
+int generic_rw(struct stream_pos *pos, struct definition *definition)
 {
        enum ctf_type_id dispatch_id = definition->declaration->id;
        rw_dispatch call;
 
        assert(pos->rw_table[dispatch_id] != NULL);
        call = pos->rw_table[dispatch_id];
-       call(pos, definition);
+       return call(pos, definition);
 }
 
 /*
@@ -239,11 +244,6 @@ struct declaration_field {
        struct declaration *declaration;
 };
 
-struct field {
-       GQuark name;
-       struct definition *definition;
-};
-
 struct declaration_struct {
        struct declaration p;
        GHashTable *fields_by_name;     /* Tuples (field name, field index) */
@@ -255,7 +255,7 @@ struct definition_struct {
        struct definition p;
        struct declaration_struct *declaration;
        struct definition_scope *scope;
-       GArray *fields;                 /* Array of struct field */
+       GPtrArray *fields;              /* Array of pointers to struct definition */
 };
 
 struct declaration_untagged_variant {
@@ -277,8 +277,8 @@ struct definition_variant {
        struct declaration_variant *declaration;
        struct definition_scope *scope;
        struct definition *enum_tag;
-       GArray *fields;                 /* Array of struct field */
-       struct field *current_field;    /* Last field read */
+       GPtrArray *fields;              /* Array of pointers to struct definition */
+       struct definition *current_field;       /* Last field read */
 };
 
 struct declaration_array {
@@ -292,7 +292,7 @@ struct definition_array {
        struct definition p;
        struct declaration_array *declaration;
        struct definition_scope *scope;
-       GArray *elems;                  /* struct field */
+       GPtrArray *elems;               /* Array of pointers to struct definition */
 };
 
 struct declaration_sequence {
@@ -307,7 +307,7 @@ struct definition_sequence {
        struct declaration_sequence *declaration;
        struct definition_scope *scope;
        struct definition_integer *len;
-       GArray *elems;                  /* struct field */
+       GPtrArray *elems;               /* Array of pointers to struct definition */
 };
 
 int register_declaration(GQuark declaration_name,
@@ -363,6 +363,14 @@ void set_dynamic_definition_scope(struct definition *definition,
                                  const char *root_name);
 void free_definition_scope(struct definition_scope *scope);
 
+GQuark new_definition_path(struct definition_scope *parent_scope, GQuark field_name);
+
+static inline
+int compare_definition_path(struct definition *definition, GQuark path)
+{
+       return definition->path == path;
+}
+
 void declaration_ref(struct declaration *declaration);
 void declaration_unref(struct declaration *declaration);
 
@@ -434,10 +442,10 @@ int struct_declaration_lookup_field_index(struct declaration_struct *struct_decl
 struct declaration_field *
 struct_declaration_get_field_from_index(struct declaration_struct *struct_declaration,
                                        int index);
-struct field *
+struct definition *
 struct_definition_get_field_from_index(struct definition_struct *struct_definition,
                                       int index);
-void struct_rw(struct stream_pos *pos, struct definition *definition);
+int struct_rw(struct stream_pos *pos, struct definition *definition);
 
 /*
  * The tag enumeration is validated to ensure that it contains only mappings
@@ -465,8 +473,8 @@ int variant_definition_set_tag(struct definition_variant *variant,
  * field returned only valid as long as the variant structure is not appended
  * to.
  */
-struct field *variant_get_current_field(struct definition_variant *variant);
-void variant_rw(struct stream_pos *pos, struct definition *definition);
+struct definition *variant_get_current_field(struct definition_variant *variant);
+int variant_rw(struct stream_pos *pos, struct definition *definition);
 
 /*
  * elem_declaration passed as parameter now belongs to the array. No
@@ -478,7 +486,7 @@ struct declaration_array *
                struct declaration_scope *parent_scope);
 uint64_t array_len(struct definition_array *array);
 struct definition *array_index(struct definition_array *array, uint64_t i);
-void array_rw(struct stream_pos *pos, struct definition *definition);
+int array_rw(struct stream_pos *pos, struct definition *definition);
 
 /*
  * int_declaration and elem_declaration passed as parameter now belong
@@ -490,11 +498,11 @@ struct declaration_sequence *
                struct declaration_scope *parent_scope);
 uint64_t sequence_len(struct definition_sequence *sequence);
 struct definition *sequence_index(struct definition_sequence *sequence, uint64_t i);
-void sequence_rw(struct stream_pos *pos, struct definition *definition);
+int sequence_rw(struct stream_pos *pos, struct definition *definition);
 
 /*
  * in: path (dot separated), out: q (GArray of GQuark)
  */
 void append_scope_path(const char *path, GArray *q);
 
-#endif /* _BABELTRACE_declarationS_H */
+#endif /* _BABELTRACE_TYPES_H */