configure: check for elfutils (libelf and libdw) >= 0.154
[babeltrace.git] / types / types.c
index 11e91b02218524b15a21f558c0f7ec311f69f50a..0d1a89d1946c0146e08ba28ffafcb09fabfa84fc 100644 (file)
  *
  * 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 <babeltrace/format.h>
-#include <babeltrace/babeltrace.h>
+#include <babeltrace/babeltrace-internal.h>
+#include <babeltrace/types.h>
 #include <limits.h>
 #include <glib.h>
 #include <errno.h>
@@ -31,29 +40,32 @@ GQuark prefix_quark(const char *prefix, GQuark quark)
 {
        GQuark nq;
        GString *str;
+       char *quark_str;
 
        str = g_string_new(prefix);
        g_string_append(str, g_quark_to_string(quark));
-       nq = g_quark_from_string(g_string_free(str, FALSE));
+       quark_str = g_string_free(str, FALSE);
+       nq = g_quark_from_string(quark_str);
+       g_free(quark_str);
        return nq;
 }
 
 static
-struct declaration *
-       lookup_declaration_scope(GQuark declaration_name,
+struct bt_declaration *
+       bt_lookup_declaration_scope(GQuark declaration_name,
                struct declaration_scope *scope)
 {
        return g_hash_table_lookup(scope->typedef_declarations,
                                   (gconstpointer) (unsigned long) declaration_name);
 }
 
-struct declaration *lookup_declaration(GQuark declaration_name,
+struct bt_declaration *bt_lookup_declaration(GQuark declaration_name,
                struct declaration_scope *scope)
 {
-       struct declaration *declaration;
+       struct bt_declaration *declaration;
 
        while (scope) {
-               declaration = lookup_declaration_scope(declaration_name,
+               declaration = bt_lookup_declaration_scope(declaration_name,
                                                       scope);
                if (declaration)
                        return declaration;
@@ -62,25 +74,25 @@ struct declaration *lookup_declaration(GQuark declaration_name,
        return NULL;
 }
 
-int register_declaration(GQuark name, struct declaration *declaration,
+int bt_register_declaration(GQuark name, struct bt_declaration *declaration,
                struct declaration_scope *scope)
 {
        if (!name)
                return -EPERM;
 
        /* Only lookup in local scope */
-       if (lookup_declaration_scope(name, scope))
+       if (bt_lookup_declaration_scope(name, scope))
                return -EEXIST;
 
        g_hash_table_insert(scope->typedef_declarations,
                            (gpointer) (unsigned long) name,
                            declaration);
-       declaration_ref(declaration);
+       bt_declaration_ref(declaration);
        return 0;
 }
 
 static
-struct definition *
+struct bt_definition *
        lookup_field_definition_scope(GQuark field_name,
                struct definition_scope *scope)
 {
@@ -113,10 +125,10 @@ static int compare_paths(GArray *a, GArray *b, int len)
 
 static int is_path_child_of(GArray *path, GArray *maybe_parent)
 {
-       int i, ret;
+       int ret;
 
        if (babeltrace_debug) {
-               int need_dot = 0;
+               int i, need_dot = 0;
 
                printf_debug("Is path \"");
                for (i = 0; i < path->len; need_dot = 1, i++)
@@ -146,7 +158,7 @@ end:
 }
 
 static struct definition_scope *
-       get_definition_scope(struct definition *definition)
+       get_definition_scope(const struct bt_definition *definition)
 {
        return definition->scope;
 }
@@ -171,12 +183,12 @@ static struct definition_scope *
  * lookup_path: the path leading to the enum we want to look for.
  * scope: the definition scope containing the variant definition.
  */
-struct definition *
-       lookup_path_definition(GArray *cur_path,
+struct bt_definition *
+       bt_lookup_path_definition(GArray *cur_path,
                               GArray *lookup_path,
                               struct definition_scope *scope)
 {
-       struct definition *definition, *lookup_definition;
+       struct bt_definition *definition, *lookup_definition;
        GQuark last;
        int index;
 
@@ -250,7 +262,7 @@ lookup:
        return NULL;
 }
 
-int register_field_definition(GQuark field_name, struct definition *definition,
+int bt_register_field_definition(GQuark field_name, struct bt_definition *definition,
                struct definition_scope *scope)
 {
        if (!scope || !field_name)
@@ -267,12 +279,12 @@ int register_field_definition(GQuark field_name, struct definition *definition,
        return 0;
 }
 
-void declaration_ref(struct declaration *declaration)
+void bt_declaration_ref(struct bt_declaration *declaration)
 {
        declaration->ref++;
 }
 
-void declaration_unref(struct declaration *declaration)
+void bt_declaration_unref(struct bt_declaration *declaration)
 {
        if (!declaration)
                return;
@@ -280,12 +292,12 @@ void declaration_unref(struct declaration *declaration)
                declaration->declaration_free(declaration);
 }
 
-void definition_ref(struct definition *definition)
+void bt_definition_ref(struct bt_definition *definition)
 {
        definition->ref++;
 }
 
-void definition_unref(struct definition *definition)
+void bt_definition_unref(struct bt_definition *definition)
 {
        if (!definition)
                return;
@@ -294,27 +306,27 @@ void definition_unref(struct definition *definition)
 }
 
 struct declaration_scope *
-       new_declaration_scope(struct declaration_scope *parent_scope)
+       bt_new_declaration_scope(struct declaration_scope *parent_scope)
 {
        struct declaration_scope *scope = g_new(struct declaration_scope, 1);
 
        scope->typedef_declarations = g_hash_table_new_full(g_direct_hash,
                                        g_direct_equal, NULL,
-                                       (GDestroyNotify) declaration_unref);
+                                       (GDestroyNotify) bt_declaration_unref);
        scope->struct_declarations = g_hash_table_new_full(g_direct_hash,
                                        g_direct_equal, NULL,
-                                       (GDestroyNotify) declaration_unref);
+                                       (GDestroyNotify) bt_declaration_unref);
        scope->variant_declarations = g_hash_table_new_full(g_direct_hash,
                                        g_direct_equal, NULL,
-                                       (GDestroyNotify) declaration_unref);
+                                       (GDestroyNotify) bt_declaration_unref);
        scope->enum_declarations = g_hash_table_new_full(g_direct_hash,
                                        g_direct_equal, NULL,
-                                       (GDestroyNotify) declaration_unref);
+                                       (GDestroyNotify) bt_declaration_unref);
        scope->parent_scope = parent_scope;
        return scope;
 }
 
-void free_declaration_scope(struct declaration_scope *scope)
+void bt_free_declaration_scope(struct declaration_scope *scope)
 {
        g_hash_table_destroy(scope->enum_declarations);
        g_hash_table_destroy(scope->variant_declarations);
@@ -324,20 +336,20 @@ void free_declaration_scope(struct declaration_scope *scope)
 }
 
 static
-struct declaration_struct *lookup_struct_declaration_scope(GQuark struct_name,
+struct declaration_struct *bt_lookup_struct_declaration_scope(GQuark struct_name,
                                             struct declaration_scope *scope)
 {
        return g_hash_table_lookup(scope->struct_declarations,
                                   (gconstpointer) (unsigned long) struct_name);
 }
 
-struct declaration_struct *lookup_struct_declaration(GQuark struct_name,
+struct declaration_struct *bt_lookup_struct_declaration(GQuark struct_name,
                                       struct declaration_scope *scope)
 {
        struct declaration_struct *declaration;
 
        while (scope) {
-               declaration = lookup_struct_declaration_scope(struct_name, scope);
+               declaration = bt_lookup_struct_declaration_scope(struct_name, scope);
                if (declaration)
                        return declaration;
                scope = scope->parent_scope;
@@ -345,7 +357,7 @@ struct declaration_struct *lookup_struct_declaration(GQuark struct_name,
        return NULL;
 }
 
-int register_struct_declaration(GQuark struct_name,
+int bt_register_struct_declaration(GQuark struct_name,
        struct declaration_struct *struct_declaration,
        struct declaration_scope *scope)
 {
@@ -356,24 +368,24 @@ int register_struct_declaration(GQuark struct_name,
                return -EPERM;
 
        /* Only lookup in local scope */
-       if (lookup_struct_declaration_scope(struct_name, scope))
+       if (bt_lookup_struct_declaration_scope(struct_name, scope))
                return -EEXIST;
 
        g_hash_table_insert(scope->struct_declarations,
                            (gpointer) (unsigned long) struct_name,
                            struct_declaration);
-       declaration_ref(&struct_declaration->p);
+       bt_declaration_ref(&struct_declaration->p);
 
        /* Also add in typedef/typealias scopes */
        prefix_name = prefix_quark("struct ", struct_name);
-       ret = register_declaration(prefix_name, &struct_declaration->p, scope);
+       ret = bt_register_declaration(prefix_name, &struct_declaration->p, scope);
        assert(!ret);
        return 0;
 }
 
 static
 struct declaration_untagged_variant *
-       lookup_variant_declaration_scope(GQuark variant_name,
+       bt_lookup_variant_declaration_scope(GQuark variant_name,
                struct declaration_scope *scope)
 {
        return g_hash_table_lookup(scope->variant_declarations,
@@ -381,13 +393,13 @@ struct declaration_untagged_variant *
 }
 
 struct declaration_untagged_variant *
-       lookup_variant_declaration(GQuark variant_name,
+       bt_lookup_variant_declaration(GQuark variant_name,
                struct declaration_scope *scope)
 {
        struct declaration_untagged_variant *declaration;
 
        while (scope) {
-               declaration = lookup_variant_declaration_scope(variant_name, scope);
+               declaration = bt_lookup_variant_declaration_scope(variant_name, scope);
                if (declaration)
                        return declaration;
                scope = scope->parent_scope;
@@ -395,7 +407,7 @@ struct declaration_untagged_variant *
        return NULL;
 }
 
-int register_variant_declaration(GQuark variant_name,
+int bt_register_variant_declaration(GQuark variant_name,
                struct declaration_untagged_variant *untagged_variant_declaration,
                struct declaration_scope *scope)
 {
@@ -406,17 +418,17 @@ int register_variant_declaration(GQuark variant_name,
                return -EPERM;
 
        /* Only lookup in local scope */
-       if (lookup_variant_declaration_scope(variant_name, scope))
+       if (bt_lookup_variant_declaration_scope(variant_name, scope))
                return -EEXIST;
 
        g_hash_table_insert(scope->variant_declarations,
                            (gpointer) (unsigned long) variant_name,
                            untagged_variant_declaration);
-       declaration_ref(&untagged_variant_declaration->p);
+       bt_declaration_ref(&untagged_variant_declaration->p);
 
        /* Also add in typedef/typealias scopes */
        prefix_name = prefix_quark("variant ", variant_name);
-       ret = register_declaration(prefix_name,
+       ret = bt_register_declaration(prefix_name,
                        &untagged_variant_declaration->p, scope);
        assert(!ret);
        return 0;
@@ -424,7 +436,7 @@ int register_variant_declaration(GQuark variant_name,
 
 static
 struct declaration_enum *
-       lookup_enum_declaration_scope(GQuark enum_name,
+       bt_lookup_enum_declaration_scope(GQuark enum_name,
                struct declaration_scope *scope)
 {
        return g_hash_table_lookup(scope->enum_declarations,
@@ -432,13 +444,13 @@ struct declaration_enum *
 }
 
 struct declaration_enum *
-       lookup_enum_declaration(GQuark enum_name,
+       bt_lookup_enum_declaration(GQuark enum_name,
                struct declaration_scope *scope)
 {
        struct declaration_enum *declaration;
 
        while (scope) {
-               declaration = lookup_enum_declaration_scope(enum_name, scope);
+               declaration = bt_lookup_enum_declaration_scope(enum_name, scope);
                if (declaration)
                        return declaration;
                scope = scope->parent_scope;
@@ -446,7 +458,7 @@ struct declaration_enum *
        return NULL;
 }
 
-int register_enum_declaration(GQuark enum_name,
+int bt_register_enum_declaration(GQuark enum_name,
                struct declaration_enum *enum_declaration,
                struct declaration_scope *scope)
 {
@@ -457,23 +469,23 @@ int register_enum_declaration(GQuark enum_name,
                return -EPERM;
 
        /* Only lookup in local scope */
-       if (lookup_enum_declaration_scope(enum_name, scope))
+       if (bt_lookup_enum_declaration_scope(enum_name, scope))
                return -EEXIST;
 
        g_hash_table_insert(scope->enum_declarations,
                            (gpointer) (unsigned long) enum_name,
                            enum_declaration);
-       declaration_ref(&enum_declaration->p);
+       bt_declaration_ref(&enum_declaration->p);
 
        /* Also add in typedef/typealias scopes */
        prefix_name = prefix_quark("enum ", enum_name);
-       ret = register_declaration(prefix_name, &enum_declaration->p, scope);
+       ret = bt_register_declaration(prefix_name, &enum_declaration->p, scope);
        assert(!ret);
        return 0;
 }
 
 static struct definition_scope *
-       _new_definition_scope(struct definition_scope *parent_scope,
+       _bt_new_definition_scope(struct definition_scope *parent_scope,
                              int scope_path_len)
 {
        struct definition_scope *scope = g_new(struct definition_scope, 1);
@@ -487,13 +499,12 @@ static struct definition_scope *
        return scope;
 }
 
-GQuark new_definition_path(struct definition_scope *parent_scope,
+GQuark bt_new_definition_path(struct definition_scope *parent_scope,
                           GQuark field_name, const char *root_name)
 {
        GQuark path;
        GString *str;
        gchar *c_str;
-       int i;
        int need_dot = 0;
 
        str = g_string_new("");
@@ -501,6 +512,8 @@ GQuark new_definition_path(struct definition_scope *parent_scope,
                g_string_append(str, root_name);
                need_dot = 1;
        } else if (parent_scope) {
+               int i;
+
                for (i = 0; i < parent_scope->scope_path->len; i++) {
                        GQuark q = g_array_index(parent_scope->scope_path,
                                                 GQuark, i);
@@ -527,20 +540,20 @@ GQuark new_definition_path(struct definition_scope *parent_scope,
 }
 
 struct definition_scope *
-       new_definition_scope(struct definition_scope *parent_scope,
+       bt_new_definition_scope(struct definition_scope *parent_scope,
                             GQuark field_name, const char *root_name)
 {
        struct definition_scope *scope;
 
        if (root_name) {
-               scope = _new_definition_scope(parent_scope, 0);
-               append_scope_path(root_name, scope->scope_path);
+               scope = _bt_new_definition_scope(parent_scope, 0);
+               bt_append_scope_path(root_name, scope->scope_path);
        } else {
                int scope_path_len = 1;
 
                assert(parent_scope);
                scope_path_len += parent_scope->scope_path->len;
-               scope = _new_definition_scope(parent_scope, scope_path_len);
+               scope = _bt_new_definition_scope(parent_scope, scope_path_len);
                memcpy(scope->scope_path->data, parent_scope->scope_path->data,
                       sizeof(GQuark) * (scope_path_len - 1));
                g_array_index(scope->scope_path, GQuark, scope_path_len - 1) =
@@ -561,7 +574,7 @@ struct definition_scope *
 /*
  * in: path (dot separated), out: q (GArray of GQuark)
  */
-void append_scope_path(const char *path, GArray *q)
+void bt_append_scope_path(const char *path, GArray *q)
 {
        const char *ptrbegin, *ptrend = path;
        GQuark quark;
@@ -592,14 +605,14 @@ void append_scope_path(const char *path, GArray *q)
        }
 }
 
-void free_definition_scope(struct definition_scope *scope)
+void bt_free_definition_scope(struct definition_scope *scope)
 {
        g_array_free(scope->scope_path, TRUE);
        g_hash_table_destroy(scope->definitions);
        g_free(scope);
 }
 
-struct definition *lookup_definition(struct definition *definition,
+struct bt_definition *bt_lookup_definition(const struct bt_definition *definition,
                                     const char *field_name)
 {
        struct definition_scope *scope = get_definition_scope(definition);
@@ -611,14 +624,14 @@ struct definition *lookup_definition(struct definition *definition,
                                             scope);
 }
 
-struct definition_integer *lookup_integer(struct definition *definition,
+struct definition_integer *bt_lookup_integer(const struct bt_definition *definition,
                                          const char *field_name,
                                          int signedness)
 {
-       struct definition *lookup;
+       struct bt_definition *lookup;
        struct definition_integer *lookup_integer;
 
-       lookup = lookup_definition(definition, field_name);
+       lookup = bt_lookup_definition(definition, field_name);
        if (!lookup)
                return NULL;
        if (lookup->declaration->id != CTF_TYPE_INTEGER)
@@ -629,14 +642,14 @@ struct definition_integer *lookup_integer(struct definition *definition,
        return lookup_integer;
 }
 
-struct definition_enum *lookup_enum(struct definition *definition,
+struct definition_enum *bt_lookup_enum(const struct bt_definition *definition,
                                    const char *field_name,
                                    int signedness)
 {
-       struct definition *lookup;
+       struct bt_definition *lookup;
        struct definition_enum *lookup_enum;
 
-       lookup = lookup_definition(definition, field_name);
+       lookup = bt_lookup_definition(definition, field_name);
        if (!lookup)
                return NULL;
        if (lookup->declaration->id != CTF_TYPE_ENUM)
@@ -647,19 +660,19 @@ struct definition_enum *lookup_enum(struct definition *definition,
        return lookup_enum;
 }
 
-struct definition *lookup_variant(struct definition *definition,
+struct bt_definition *bt_lookup_variant(const struct bt_definition *definition,
                                  const char *field_name)
 {
-       struct definition *lookup;
-       struct definition_variant *lookup_variant;
+       struct bt_definition *lookup;
+       struct definition_variant *bt_lookup_variant;
 
-       lookup = lookup_definition(definition, field_name);
+       lookup = bt_lookup_definition(definition, field_name);
        if (!lookup)
                return NULL;
        if (lookup->declaration->id != CTF_TYPE_VARIANT)
                return NULL;
-       lookup_variant = container_of(lookup, struct definition_variant, p);
-       lookup = variant_get_current_field(lookup_variant);
+       bt_lookup_variant = container_of(lookup, struct definition_variant, p);
+       lookup = bt_variant_get_current_field(bt_lookup_variant);
        assert(lookup);
        return lookup;
 }
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