libsysprof-analyze: add document type for fork

src/libsysprof-analyze/meson.build

@@ -1,6 +1,7 @@
 libsysprof_analyze_public_sources = [
   'sysprof-document.c',
   'sysprof-document-exit.c',
+  'sysprof-document-fork.c',
   'sysprof-document-frame.c',
   'sysprof-document-log.c',
   'sysprof-document-mark.c',
@@ -14,6 +15,7 @@ libsysprof_analyze_public_headers = [
   'sysprof-analyze.h',
   'sysprof-document.h',
   'sysprof-document-exit.h',
+  'sysprof-document-fork.h',
   'sysprof-document-frame.h',
   'sysprof-document-log.h',
   'sysprof-document-mark.h',

src/libsysprof-analyze/sysprof-analyze.h

@@ -27,6 +27,7 @@ G_BEGIN_DECLS
 #define SYSPROF_ANALYZE_INSIDE
 # include "sysprof-document.h"
 # include "sysprof-document-exit.h"
+# include "sysprof-document-fork.h"
 # include "sysprof-document-frame.h"
 # include "sysprof-document-log.h"
 # include "sysprof-document-mark.h"

src/libsysprof-analyze/sysprof-document-fork.c

@@ -0,0 +1,95 @@
+/* sysprof-document-fork.c
+ *
+ * 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
+ */
+
+#include "config.h"
+
+#include "sysprof-document-frame-private.h"
+#include "sysprof-document-fork.h"
+
+struct _SysprofDocumentFork
+{
+  SysprofDocumentFrame parent_instance;
+};
+
+struct _SysprofDocumentForkClass
+{
+  SysprofDocumentFrameClass parent_class;
+};
+
+enum {
+  PROP_0,
+  PROP_CHILD_PID,
+  N_PROPS
+};
+
+G_DEFINE_FINAL_TYPE (SysprofDocumentFork, sysprof_document_fork, SYSPROF_TYPE_DOCUMENT_FRAME)
+
+static GParamSpec *properties [N_PROPS];
+
+static void
+sysprof_document_fork_get_property (GObject    *object,
+                                      guint       prop_id,
+                                      GValue     *value,
+                                      GParamSpec *pspec)
+{
+  SysprofDocumentFork *self = SYSPROF_DOCUMENT_FORK (object);
+
+  switch (prop_id)
+    {
+    case PROP_CHILD_PID:
+      g_value_set_int (value, sysprof_document_fork_get_child_pid (self));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+sysprof_document_fork_class_init (SysprofDocumentForkClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->get_property = sysprof_document_fork_get_property;
+
+  properties [PROP_CHILD_PID] =
+    g_param_spec_int ("child-pid", NULL, NULL,
+                      G_MININT, G_MAXINT, 0,
+                      (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+
+  g_object_class_install_properties (object_class, N_PROPS, properties);
+}
+
+static void
+sysprof_document_fork_init (SysprofDocumentFork *self)
+{
+}
+
+int
+sysprof_document_fork_get_child_pid (SysprofDocumentFork *self)
+{
+  const SysprofCaptureFork *fork;
+
+  g_return_val_if_fail (SYSPROF_IS_DOCUMENT_FORK (self), 0);
+
+  fork = SYSPROF_DOCUMENT_FRAME_GET (self, SysprofCaptureFork);
+
+  return SYSPROF_DOCUMENT_FRAME_INT32 (self, fork->child_pid);
+}

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

@@ -0,0 +1,41 @@
+/* sysprof-document-fork.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 "sysprof-document-frame.h"
+
+G_BEGIN_DECLS
+
+#define SYSPROF_TYPE_DOCUMENT_FORK         (sysprof_document_fork_get_type())
+#define SYSPROF_IS_DOCUMENT_FORK(obj)      G_TYPE_CHECK_INSTANCE_TYPE(obj, SYSPROF_TYPE_DOCUMENT_FORK)
+#define SYSPROF_DOCUMENT_FORK(obj)         G_TYPE_CHECK_INSTANCE_CAST(obj, SYSPROF_TYPE_DOCUMENT_FORK, SysprofDocumentFork)
+#define SYSPROF_DOCUMENT_FORK_CLASS(klass) G_TYPE_CHECK_CLASS_CAST(klass, SYSPROF_TYPE_DOCUMENT_FORK, SysprofDocumentForkClass)
+
+typedef struct _SysprofDocumentFork      SysprofDocumentFork;
+typedef struct _SysprofDocumentForkClass SysprofDocumentForkClass;
+
+SYSPROF_AVAILABLE_IN_ALL
+GType sysprof_document_fork_get_type      (void) G_GNUC_CONST;
+SYSPROF_AVAILABLE_IN_ALL
+int   sysprof_document_fork_get_child_pid (SysprofDocumentFork *self);
+
+G_END_DECLS
+

src/libsysprof-analyze/sysprof-document-frame.c

@@ -23,6 +23,7 @@
 #include "sysprof-document-frame-private.h"
 
 #include "sysprof-document-exit.h"
+#include "sysprof-document-fork.h"
 #include "sysprof-document-log.h"
 #include "sysprof-document-mark.h"
 #include "sysprof-document-mmap.h"
@@ -124,22 +125,43 @@ _sysprof_document_frame_new (GMappedFile               *mapped_file,
                              guint16                    frame_len,
                              gboolean                   needs_swap)
 {
-  GType gtype = SYSPROF_TYPE_DOCUMENT_FRAME;
   SysprofDocumentFrame *self;
+  GType gtype;
 
-  if (0) {}
+  switch (frame->type)
-  else if (frame->type == SYSPROF_CAPTURE_FRAME_SAMPLE)
+    {
-    gtype = SYSPROF_TYPE_DOCUMENT_SAMPLE;
+    case SYSPROF_CAPTURE_FRAME_SAMPLE:
-  else if (frame->type == SYSPROF_CAPTURE_FRAME_MAP)
+      gtype = SYSPROF_TYPE_DOCUMENT_SAMPLE;
-    gtype = SYSPROF_TYPE_DOCUMENT_MMAP;
+      break;
-  else if (frame->type == SYSPROF_CAPTURE_FRAME_LOG)
+
-    gtype = SYSPROF_TYPE_DOCUMENT_LOG;
+    case SYSPROF_CAPTURE_FRAME_MAP:
-  else if (frame->type == SYSPROF_CAPTURE_FRAME_MARK)
+      gtype = SYSPROF_TYPE_DOCUMENT_MMAP;
-    gtype = SYSPROF_TYPE_DOCUMENT_MARK;
+      break;
-  else if (frame->type == SYSPROF_CAPTURE_FRAME_PROCESS)
+
-    gtype = SYSPROF_TYPE_DOCUMENT_PROCESS;
+    case SYSPROF_CAPTURE_FRAME_LOG:
-  else if (frame->type == SYSPROF_CAPTURE_FRAME_EXIT)
+      gtype = SYSPROF_TYPE_DOCUMENT_LOG;
-    gtype = SYSPROF_TYPE_DOCUMENT_EXIT;
+      break;
+
+    case SYSPROF_CAPTURE_FRAME_MARK:
+      gtype = SYSPROF_TYPE_DOCUMENT_MARK;
+      break;
+
+    case SYSPROF_CAPTURE_FRAME_PROCESS:
+      gtype = SYSPROF_TYPE_DOCUMENT_PROCESS;
+      break;
+
+    case SYSPROF_CAPTURE_FRAME_EXIT:
+      gtype = SYSPROF_TYPE_DOCUMENT_EXIT;
+      break;
+
+    case SYSPROF_CAPTURE_FRAME_FORK:
+      gtype = SYSPROF_TYPE_DOCUMENT_FORK;
+      break;
+
+    default:
+      gtype = SYSPROF_TYPE_DOCUMENT_FRAME;
+      break;
+    }
 
   self = g_object_new (gtype, NULL);
   self->mapped_file = g_mapped_file_ref (mapped_file);

src/libsysprof-analyze/tests/test-capture-model.c

@@ -58,6 +58,9 @@ main (int argc,
         g_print (" id=%s value=%s",
                  sysprof_document_metadata_get_id (SYSPROF_DOCUMENT_METADATA (frame)),
                  sysprof_document_metadata_get_value (SYSPROF_DOCUMENT_METADATA (frame)));
+      else if (SYSPROF_IS_DOCUMENT_FORK (frame))
+        g_print (" child-pid=%d",
+                 sysprof_document_fork_get_child_pid (SYSPROF_DOCUMENT_FORK (frame)));
 
       g_print ("\n");