From 5bf074cf9b2fced09d57098aa0bbfe4cca6a3bdb Mon Sep 17 00:00:00 2001
From: Colin Walters <walters@verbum.org>
Date: Wed, 6 Oct 2010 13:08:47 -0400
Subject: strace-notebook: New toy vala project

---
 strace-notebook/Makefile             |   2 +
 strace-notebook/strace-notebook.vala | 115 +++++++++++++++++++++++++++++++++++
 2 files changed, 117 insertions(+)
 create mode 100644 strace-notebook/Makefile
 create mode 100644 strace-notebook/strace-notebook.vala

diff --git a/strace-notebook/Makefile b/strace-notebook/Makefile
new file mode 100644
index 0000000..cb0dace
--- /dev/null
+++ b/strace-notebook/Makefile
@@ -0,0 +1,2 @@
+strace-notebook: strace-notebook.vala
+	valac -g --pkg gee-1.0 --pkg gtk+-2.0 $< -o $@
diff --git a/strace-notebook/strace-notebook.vala b/strace-notebook/strace-notebook.vala
new file mode 100644
index 0000000..d715fd3
--- /dev/null
+++ b/strace-notebook/strace-notebook.vala
@@ -0,0 +1,115 @@
+/* -*- mode: java; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+using Gtk;
+using Gee;
+
+class ProcessHistory {
+  public long pid;
+  public ArrayList<string> lines;
+}
+
+class StraceDatabase {
+  private Gee.Map<long, ProcessHistory> processes;
+  private GLib.Regex strace_regexp;
+
+  public StraceDatabase() {
+    processes = new Gee.HashMap<long, ProcessHistory>();
+    try {
+      strace_regexp = new GLib.Regex("^([0-9]+) (.*)$");
+    } catch (GLib.Error e) {
+    }
+  } 
+  
+  public void parse(string filename) throws GLib.Error {
+    var file = GLib.File.new_for_path(filename);
+    var input = new GLib.DataInputStream(file.read(null));
+    string line;
+    while ((line = input.read_line(null, null)) != null) {
+      GLib.MatchInfo match;
+      if (!strace_regexp.match(line, 0, out match))
+        continue;
+      string? pid_str = match.fetch(1);
+      string? strace_data = match.fetch(2);
+      if (pid_str == null)
+        continue;
+      if (strace_data == null)
+        continue;
+      long pid = pid_str.to_long();
+
+      ProcessHistory p;
+      if (!processes.has_key(pid)) {
+        p = new ProcessHistory();
+        p.pid = pid;
+        p.lines = new ArrayList<string>();
+        processes.set(pid, p);
+      } else {
+        p = processes.get(pid);
+      }
+      p.lines.add(strace_data);
+    }
+  }
+
+  public Gee.Collection<ProcessHistory> getProcesses() {
+    return processes.values;
+  }
+}
+
+class StraceNotebook : Gtk.VBox {
+  private Gtk.Notebook notebook;
+  private StraceDatabase database;
+  
+  public StraceNotebook() {
+    notebook = new Gtk.Notebook();
+    this.add(notebook);
+    database = new StraceDatabase();
+  }
+
+  private Gtk.TextBuffer buffer_for_history(ProcessHistory p) {
+    var buf = new Gtk.TextBuffer(null);
+    foreach (string line in p.lines) {
+      buf.insert_at_cursor(line, -1);
+      buf.insert_at_cursor("\n", -1);
+    }
+    return buf;
+  }
+
+  private Gtk.Widget view_for_history(ProcessHistory p) {
+    var scroll = new Gtk.ScrolledWindow(null, null);
+    var text_view = new Gtk.TextView.with_buffer(buffer_for_history(p));
+    scroll.add(text_view);
+    return scroll;
+  }
+
+  public void parse(string filename) throws GLib.Error {
+    database.parse(filename);
+    
+    foreach (ProcessHistory p in database.getProcesses()) {
+      var view = view_for_history(p);
+      var label = new Gtk.Label("PID %ld".printf(p.pid));
+      notebook.append_page(view, label);
+    }
+  }
+}
+
+class StraceNotebookApp : GLib.Object {
+  public static int main(string[] args) {
+    Gtk.init (ref args);
+    var filename = args[1];
+    var window = new Gtk.Window(Gtk.WindowType.TOPLEVEL);
+    window.set_default_size(640, 480);
+    window.destroy.connect(Gtk.main_quit);
+
+    var notebook = new StraceNotebook();
+    try {
+      notebook.parse(filename);
+    } catch (GLib.Error e) {
+      GLib.printerr("Failed to parse: %s", e.message);
+    }
+
+    window.add(notebook);
+
+    window.show_all();
+    Gtk.main(); 
+    return 0;
+  }
+}
-- 
cgit