libsysprof-analyze: add SysprofDocumentCtrset

This represents the SysprofCaptureCtrset and allows fetching the raw values
for a given counter. These are raw because they may not be endian swapped
and that is the responsibility of the consumer.

SysprofDocument will use these eventually to store the values for a given
counter and the time of the value shift.

src/libsysprof-analyze/sysprof-document-ctrset.h

@@ -0,0 +1,50 @@
+/* sysprof-document-ctrset.h
+ *
+ * Copyright 2023 Christian Hergert <chergert@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#pragma once
+
+#include <gio/gio.h>
+
+#include "sysprof-document-frame.h"
+
+G_BEGIN_DECLS
+
+#define SYSPROF_TYPE_DOCUMENT_CTRSET         (sysprof_document_ctrset_get_type())
+#define SYSPROF_IS_DOCUMENT_CTRSET(obj)      G_TYPE_CHECK_INSTANCE_TYPE(obj, SYSPROF_TYPE_DOCUMENT_CTRSET)
+#define SYSPROF_DOCUMENT_CTRSET(obj)         G_TYPE_CHECK_INSTANCE_CAST(obj, SYSPROF_TYPE_DOCUMENT_CTRSET, SysprofDocumentCtrset)
+#define SYSPROF_DOCUMENT_CTRSET_CLASS(klass) G_TYPE_CHECK_CLASS_CAST(klass, SYSPROF_TYPE_DOCUMENT_CTRSET, SysprofDocumentCtrsetClass)
+
+typedef struct _SysprofDocumentCtrset      SysprofDocumentCtrset;
+typedef struct _SysprofDocumentCtrsetClass SysprofDocumentCtrsetClass;
+
+SYSPROF_AVAILABLE_IN_ALL
+GType       sysprof_document_ctrset_get_type         (void) G_GNUC_CONST;
+SYSPROF_AVAILABLE_IN_ALL
+guint       sysprof_document_ctrset_get_n_values     (SysprofDocumentCtrset *self);
+SYSPROF_AVAILABLE_IN_ALL
+void        sysprof_document_ctrset_get_raw_value    (SysprofDocumentCtrset  *self,
+                                                      guint                   nth,
+                                                      guint                  *id,
+                                                      guint8                  value[restrict 8]);
+
+G_DEFINE_AUTOPTR_CLEANUP_FUNC (SysprofDocumentCtrset, g_object_unref)
+
+G_END_DECLS
+