initial

1 files changed, 676 insertions, 0 deletions

diff --git a/src/sysinfo.cpp b/src/sysinfo.cpp
new file mode 100644
index 0000000..9ddf31c
--- /dev/null
+++ b/src/sysinfo.cpp
@@ -0,0 +1,676 @@
+#include <config.h>
+
+#include <glib.h>
+#include <gtk/gtk.h>
+#include <glibmm.h>
+#include <glib/gi18n.h>
+
+#include <libxml/parser.h>
+#include <libxml/xpath.h>
+#include <libxml/xpathInternals.h>
+
+#include <glibtop/fsusage.h>
+#include <glibtop/mountlist.h>
+#include <glibtop/mem.h>
+#include <glibtop/sysinfo.h>
+
+#include <unistd.h>
+#include <netdb.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <math.h>
+#include <errno.h>
+
+#include <string>
+#include <vector>
+#include <fstream>
+#include <sstream>
+#include <sys/utsname.h>
+
+#include "sysinfo.h"
+#include "procman.h"
+#include "util.h"
+
+
+using std::string;
+using std::vector;
+
+
+namespace {
+
+
+  class SysInfo
+  {
+  public:
+    string hostname;
+    string distro_name;
+    string distro_release;
+    string kernel;
+    string mate_version;
+    guint64 memory_bytes;
+    guint64 free_space_bytes;
+
+    guint n_processors;
+    vector<string> processors;
+
+
+    SysInfo()
+    {
+      this->load_processors_info();
+      this->load_memory_info();
+      this->load_disk_info();
+      this->load_uname_info();
+      this->load_mate_version();
+    }
+
+    virtual ~SysInfo()
+    { }
+
+    virtual void set_distro_labels(GtkWidget* name, GtkWidget* release)
+    {
+      g_object_set(G_OBJECT(name),
+		   "label",
+		   ("<big><big><b>" + this->distro_name + "</b></big></big>").c_str(),
+		   NULL);
+
+
+      char* markup = g_strdup_printf(_("Release %s"), this->distro_release.c_str());
+
+      g_object_set(G_OBJECT(release),
+		   "label",
+		   markup,
+		   NULL);
+
+      g_free(markup);
+    }
+
+    static string system()
+    {
+      return uname().sysname;
+    }
+
+  private:
+
+    void load_memory_info()
+    {
+      glibtop_mem mem;
+
+      glibtop_get_mem(&mem);
+      this->memory_bytes = mem.total;
+    }
+
+
+    void load_processors_info()
+    {
+      const glibtop_sysinfo *info = glibtop_get_sysinfo();
+
+      for (guint i = 0; i != info->ncpu; ++i) {
+	const char * const keys[] = { "model name", "cpu" };
+	gchar *model = 0;
+
+	for (guint j = 0; !model && j != G_N_ELEMENTS(keys); ++j)
+	  model = static_cast<char*>(g_hash_table_lookup(info->cpuinfo[i].values,
+							 keys[j]));
+
+	if (!model)
+	  model = _("Unknown CPU model");
+
+	this->processors.push_back(model);
+      }
+    }
+
+
+
+    void load_disk_info()
+    {
+      glibtop_mountentry *entries;
+      glibtop_mountlist mountlist;
+
+      entries = glibtop_get_mountlist(&mountlist, 0);
+
+      this->free_space_bytes = 0;
+
+      for (guint i = 0; i != mountlist.number; ++i) {
+
+	if (string(entries[i].devname).find("/dev/") != 0)
+	  continue;
+
+	if (string(entries[i].mountdir).find("/media/") == 0)
+	  continue;
+
+	glibtop_fsusage usage;
+	glibtop_get_fsusage(&usage, entries[i].mountdir);
+	this->free_space_bytes += usage.bavail * usage.block_size;
+      }
+
+      g_free(entries);
+    }
+
+    static const struct utsname & uname()
+    {
+      static struct utsname name;
+
+      if (!name.sysname[0]) {
+	::uname(&name);
+      }
+
+      return name;
+    }
+
+    void load_uname_info()
+    {
+      this->hostname = uname().nodename;
+      this->kernel = string(uname().sysname) + ' ' + uname().release;
+    }
+
+
+    void load_mate_version()
+    {
+      xmlDocPtr document;
+      xmlXPathContextPtr context;
+      const string nodes[3] = { "string(/mate-version/platform)",
+				"string(/mate-version/minor)",
+				"string(/mate-version/micro)" };
+      string values[3];
+
+      if (not (document = xmlParseFile(DATADIR "/mate-about/mate-version.xml")))
+	return;
+
+      if (not (context = xmlXPathNewContext(document)))
+	return;
+
+      for (size_t i = 0; i != 3; ++i)
+	{
+	  xmlXPathObjectPtr xpath;
+	  xpath = xmlXPathEvalExpression(BAD_CAST nodes[i].c_str(), context);
+	  
+	  if (xpath and xpath->type == XPATH_STRING)
+	    values[i] = reinterpret_cast<const char*>(xpath->stringval);
+
+	  xmlXPathFreeObject(xpath);
+	}
+
+      xmlXPathFreeContext(context);
+      xmlFreeDoc(document);
+
+      this->mate_version = values[0] + '.' + values[1] + '.' + values[2];
+    }
+  };
+
+
+
+  class SolarisSysInfo
+    : public SysInfo
+  {
+  public:
+    SolarisSysInfo()
+    {
+      this->load_solaris_info();
+    }
+
+  private:
+    void load_solaris_info()
+    {
+      this->distro_name = "Solaris";
+
+      std::ifstream input("/etc/release");
+
+      if (input)
+	std::getline(input, this->distro_release);
+    }
+  };
+
+
+  class LSBSysInfo
+    : public SysInfo
+  {
+  public:
+    LSBSysInfo()
+      : re(Glib::Regex::create("^.+?:\\s*(.+)\\s*$"))
+    {
+      // start();
+    }
+
+    virtual void set_distro_labels(GtkWidget* name, GtkWidget* release)
+    {
+      this->name = name;
+      this->release = release;
+
+      this->start();
+    }
+
+
+  private:
+
+    sigc::connection child_watch;
+    int lsb_fd;
+    GtkWidget* name;
+    GtkWidget* release;
+
+    void strip_description(string &s) const
+    {
+      const GRegexMatchFlags flags = static_cast<GRegexMatchFlags>(0);
+      GMatchInfo* info = 0;
+
+      if (g_regex_match(this->re->gobj(), s.c_str(), flags, &info)) {
+	s = make_string(g_match_info_fetch(info, 1));
+	g_match_info_free(info);
+      }
+    }
+
+    std::istream& get_value(std::istream &is, string &s) const
+    {
+      if (std::getline(is, s))
+	this->strip_description(s);
+      return is;
+    }
+
+
+    void read_lsb(Glib::Pid pid, int status)
+    {
+      this->child_watch.disconnect();
+
+      if (!WIFEXITED(status) or WEXITSTATUS(status) != 0) {
+	g_error("Child %d failed with status %d", int(pid), status);
+	return;
+      }
+
+      Glib::RefPtr<Glib::IOChannel> channel = Glib::IOChannel::create_from_fd(this->lsb_fd);
+      Glib::ustring content;
+
+      while (channel->read_to_end(content) == Glib::IO_STATUS_AGAIN)
+	;
+
+      channel->close();
+      Glib::spawn_close_pid(pid);
+
+      procman_debug("lsb_release output = '%s'", content.c_str());
+
+      string release, codename;
+      std::istringstream input(content);
+
+      this->get_value(input, this->distro_name)
+	and this->get_value(input, release)
+	and this->get_value(input, codename);
+
+      this->distro_release = release;
+      if (codename != "" && codename != "n/a")
+	this->distro_release += " (" + codename + ')';
+
+      this->SysInfo::set_distro_labels(this->name, this->release);
+    }
+
+
+    void start()
+    {
+      std::vector<string> argv(2);
+      argv[0] = "lsb_release";
+      argv[1] = "-irc";
+
+      Glib::SpawnFlags flags = Glib::SPAWN_DO_NOT_REAP_CHILD
+	| Glib::SPAWN_SEARCH_PATH
+	| Glib::SPAWN_STDERR_TO_DEV_NULL;
+
+      Glib::Pid child;
+
+      try {
+	Glib::spawn_async_with_pipes("/", // wd
+				     argv,
+				     flags,
+				     sigc::slot<void>(), // child setup
+				     &child,
+				     0, // stdin
+				     &this->lsb_fd); // stdout
+      } catch (Glib::SpawnError &e) {
+	g_error("g_spawn_async_with_pipes error: %s", e.what().c_str());
+	return;
+      }
+
+      sigc::slot<void,GPid, int> slot = sigc::mem_fun(this, &LSBSysInfo::read_lsb);
+      this->child_watch = Glib::signal_child_watch().connect(slot, child);
+    }
+
+
+    void sync_lsb_release()
+    {
+      char *out= 0;
+      GError *error = 0;
+      int status;
+
+      if (g_spawn_command_line_sync("lsb_release -irc",
+				    &out,
+				    0,
+				    &status,
+				    &error)) {
+	string release, codename;
+	if (!error and WIFEXITED(status) and WEXITSTATUS(status) == 0) {
+	  std::istringstream input(out);
+	  this->get_value(input, this->distro_name)
+	    and this->get_value(input, release)
+	    and this->get_value(input, codename);
+	  this->distro_release = release;
+	  if (codename != "" && codename != "n/a")
+	    this->distro_release += " (" + codename + ')';
+	}
+      }
+
+      if (error)
+	g_error_free(error);
+
+      g_free(out);
+    }
+
+  private:
+    Glib::RefPtr<Glib::Regex> re;
+  };
+
+
+  class NetBSDSysInfo
+    : public SysInfo
+  {
+  public:
+    NetBSDSysInfo()
+    {
+      this->load_netbsd_info();
+    }
+
+  private:
+    void load_netbsd_info()
+    {
+      this->distro_name = "NetBSD";
+
+      std::ifstream input("/etc/release");
+
+      if (input)
+	std::getline(input, this->distro_release);
+    }
+  };
+
+
+  SysInfo* get_sysinfo()
+  {
+    if (char *p = g_find_program_in_path("lsb_release")) {
+      g_free(p);
+      return new LSBSysInfo;
+    }
+    else if (SysInfo::system() == "SunOS") {
+      return new SolarisSysInfo;
+    }
+    else if (SysInfo::system() == "NetBSD") {
+      return new NetBSDSysInfo;
+    }
+
+    return new SysInfo;
+  }
+}
+
+
+#define X_PAD  5
+#define Y_PAD  12
+#define LOGO_W 92
+#define LOGO_H 351
+#define RADIUS 5
+
+static gboolean
+sysinfo_logo_expose (GtkWidget *widget,
+		     GdkEventExpose *event,
+		     gpointer data_ptr)
+{
+  GtkAllocation allocation;
+  GtkStyle *style;
+  cairo_t *cr;
+  cairo_pattern_t *cp;
+
+  cr = gdk_cairo_create(gtk_widget_get_window(widget));
+
+  gtk_widget_get_allocation (widget, &allocation);
+  cairo_translate(cr, allocation.x, allocation.y);
+
+  cairo_move_to(cr, X_PAD + RADIUS, Y_PAD);
+  cairo_line_to(cr, X_PAD + LOGO_W - RADIUS, Y_PAD);
+  cairo_arc(cr, X_PAD + LOGO_W - RADIUS, Y_PAD + RADIUS, RADIUS, -0.5 * M_PI, 0);
+  cairo_line_to(cr, X_PAD + LOGO_W, Y_PAD + LOGO_H - RADIUS);
+  cairo_arc(cr, X_PAD + LOGO_W - RADIUS, Y_PAD + LOGO_H - RADIUS, RADIUS, 0, 0.5 * M_PI);
+  cairo_line_to(cr, X_PAD + RADIUS, Y_PAD + LOGO_H);
+  cairo_arc(cr, X_PAD + RADIUS, Y_PAD + LOGO_H - RADIUS, RADIUS, 0.5 * M_PI, -1.0 * M_PI);
+  cairo_line_to(cr, X_PAD, Y_PAD + RADIUS);
+  cairo_arc(cr,  X_PAD + RADIUS, Y_PAD + RADIUS, RADIUS, -1.0 * M_PI, -0.5 * M_PI);
+
+  cp = cairo_pattern_create_linear(0, Y_PAD, 0, Y_PAD + LOGO_H);
+  style = gtk_widget_get_style (widget);
+  cairo_pattern_add_color_stop_rgba(cp, 0.0,
+				    style->base[GTK_STATE_SELECTED].red / 65535.0,
+				    style->base[GTK_STATE_SELECTED].green / 65535.0,
+				    style->base[GTK_STATE_SELECTED].blue / 65535.0,
+				    1.0);
+  cairo_pattern_add_color_stop_rgba(cp, 1.0,
+				    style->base[GTK_STATE_SELECTED].red / 65535.0,
+				    style->base[GTK_STATE_SELECTED].green / 65535.0,
+				    style->base[GTK_STATE_SELECTED].blue / 65535.0,
+				    0.0);
+  cairo_set_source(cr, cp);
+  cairo_fill(cr);
+
+  cairo_pattern_destroy(cp);
+  cairo_destroy(cr);
+
+  return FALSE;
+}
+
+static GtkWidget*
+add_section(GtkBox *vbox , const char * title, int num_row, int num_col, GtkWidget **out_frame)
+{
+  GtkWidget *table;
+
+  GtkWidget *frame = gtk_frame_new(title);
+  gtk_frame_set_label_align(GTK_FRAME(frame), 0.0, 0.5);
+  gtk_label_set_use_markup(
+			   GTK_LABEL(gtk_frame_get_label_widget(GTK_FRAME(frame))),
+			   TRUE
+			   );
+  gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_NONE);
+  gtk_box_pack_start(GTK_BOX(vbox), frame, FALSE, FALSE, 0);
+
+  GtkWidget *alignment = gtk_alignment_new(0.5, 0.5, 1.0, 1.0);
+  gtk_alignment_set_padding(GTK_ALIGNMENT(alignment), 0, 0, 12, 0);
+  gtk_container_add(GTK_CONTAINER(frame), alignment);
+
+  table = gtk_table_new(num_row, num_col, FALSE);
+  gtk_table_set_row_spacings(GTK_TABLE(table), 6);
+  gtk_table_set_col_spacings(GTK_TABLE(table), 6);
+  gtk_container_set_border_width(GTK_CONTAINER(table), 6);
+  gtk_container_add(GTK_CONTAINER(alignment), table);
+
+  if(out_frame)
+    *out_frame = frame;
+
+  return table;
+}
+
+
+static GtkWidget* 
+add_row(GtkTable * table, const char * label, const char * value, int row)
+{
+  GtkWidget *header = gtk_label_new(label);
+  gtk_misc_set_alignment(GTK_MISC(header), 0.0, 0.5);
+  gtk_table_attach(
+		   table, header,
+		   0, 1, row, row + 1,
+		   GTK_FILL, GTK_FILL, 0, 0
+		   );
+
+  GtkWidget *label_widget = gtk_label_new(value);
+  gtk_misc_set_alignment(GTK_MISC(label_widget), 0.0, 0.5);
+  gtk_table_attach(
+		   table, label_widget,
+		   1, 2, row, row + 1,
+		   GTK_FILL, GTK_FILL, 0, 0
+		   );
+  return label_widget;
+}
+
+
+static GtkWidget *
+procman_create_sysinfo_view(void)
+{
+  GtkWidget *hbox;
+  GtkWidget *vbox;
+
+  SysInfo *data = get_sysinfo();;
+
+  GtkWidget * logo;
+
+  GtkWidget *distro_frame;
+  GtkWidget *distro_release_label;
+  GtkWidget *distro_table;
+
+  GtkWidget *hardware_table;
+  GtkWidget *memory_label;
+  GtkWidget *processor_label;
+
+  GtkWidget *disk_space_table;
+  GtkWidget *disk_space_label;
+
+  GtkWidget *header;
+
+  gchar *markup;
+
+
+  hbox = gtk_hbox_new(FALSE, 12);
+  gtk_container_set_border_width(GTK_CONTAINER(hbox), 6);
+
+  /* left-side logo */
+
+  logo = gtk_image_new_from_file(DATADIR "/pixmaps/mate-system-monitor/side.png");
+  gtk_misc_set_alignment(GTK_MISC(logo), 0.5, 0.0);
+  gtk_misc_set_padding(GTK_MISC(logo), 5, 12);
+  gtk_box_pack_start(GTK_BOX(hbox), logo, FALSE, FALSE, 0);
+
+  g_signal_connect(G_OBJECT(logo), "expose-event",
+		   G_CALLBACK(sysinfo_logo_expose), NULL);
+
+  vbox = gtk_vbox_new(FALSE, 12);
+  gtk_container_set_border_width(GTK_CONTAINER(vbox), 12);
+  gtk_box_pack_start(GTK_BOX(hbox), vbox, TRUE, TRUE, 0);
+
+  // hostname
+
+  markup = g_strdup_printf("<big><big><b><u>%s</u></b></big></big>",
+    data->hostname.c_str());
+  GtkWidget *hostname_frame = gtk_frame_new(markup);
+  g_free(markup);
+  gtk_frame_set_label_align(GTK_FRAME(hostname_frame), 0.0, 0.5);
+  gtk_label_set_use_markup(
+			   GTK_LABEL(gtk_frame_get_label_widget(GTK_FRAME(hostname_frame))),
+			   TRUE
+			   );
+  gtk_frame_set_shadow_type(GTK_FRAME(hostname_frame), GTK_SHADOW_NONE);
+  gtk_box_pack_start(GTK_BOX(vbox), hostname_frame, FALSE, FALSE, 0);
+
+
+  /* distro section */
+
+  unsigned table_size = 2;
+  if (data->mate_version != "")
+     table_size++;
+  distro_table = add_section(GTK_BOX(vbox), "???", table_size, 1, &distro_frame);
+
+  unsigned table_count = 0;
+
+  distro_release_label = gtk_label_new("???");
+  gtk_misc_set_alignment(GTK_MISC(distro_release_label), 0.0, 0.5);
+  gtk_table_attach(
+		   GTK_TABLE(distro_table), distro_release_label,
+		   0, 1, table_count, table_count+1,
+		   GTK_FILL, GTK_FILL, 0, 0
+		   );
+  table_count++;
+  data->set_distro_labels(gtk_frame_get_label_widget(GTK_FRAME(distro_frame)), distro_release_label);
+
+  markup = g_strdup_printf(_("Kernel %s"), data->kernel.c_str());
+  header = gtk_label_new(markup);
+  g_free(markup);
+  gtk_misc_set_alignment(GTK_MISC(header), 0.0, 0.5);
+  gtk_table_attach(
+		   GTK_TABLE(distro_table), header,
+		   0, 1, table_count, table_count + 1,
+		   GTK_FILL, GTK_FILL, 0, 0
+		   );
+  table_count++;
+
+  if (data->mate_version != "")
+    {
+      markup = g_strdup_printf(_("MATE %s"), data->mate_version.c_str());
+      header = gtk_label_new(markup);
+      g_free(markup);
+      gtk_misc_set_alignment(GTK_MISC(header), 0.0, 0.5);
+      gtk_table_attach(
+		       GTK_TABLE(distro_table), header,
+		       0, 1, table_count, table_count + 1,
+		       GTK_FILL, GTK_FILL, 0, 0
+		       );
+      table_count++;
+    }
+
+  /* hardware section */
+
+  markup = g_strdup_printf(_("<b>Hardware</b>"));
+  hardware_table = add_section(GTK_BOX(vbox), markup, data->processors.size(), 2, NULL);
+  g_free(markup);
+
+  markup = procman::format_size(data->memory_bytes);
+  memory_label = add_row(GTK_TABLE(hardware_table), _("Memory:"),
+                         markup, 0);
+  g_free(markup);
+
+  for (guint i = 0; i < data->processors.size(); ++i) {
+    const gchar * t;
+    if (data->processors.size() > 1) {
+      markup = g_strdup_printf(_("Processor %d:"), i);
+      t = markup;
+    }
+    else {
+      markup = NULL;
+      t = _("Processor:");
+    }
+
+    processor_label = add_row(GTK_TABLE(hardware_table), t,
+                              data->processors[i].c_str(), 1 + i);
+
+    if(markup)
+      g_free(markup);
+  }
+
+  /* disk space section */
+
+  markup = g_strdup_printf(_("<b>System Status</b>"));
+  disk_space_table = add_section(GTK_BOX(vbox), markup, 1, 2, NULL);
+  g_free(markup);
+
+  markup = procman::format_size(data->free_space_bytes);
+  disk_space_label = add_row(GTK_TABLE(disk_space_table), 
+                             _("Available disk space:"), markup,
+                             0);
+  g_free(markup);
+
+  return hbox;
+}
+
+
+
+namespace procman
+{
+  void build_sysinfo_ui()
+  {
+    static GtkWidget* ui;
+
+    if (!ui) {
+      ProcData* procdata = ProcData::get_instance();
+      ui = procman_create_sysinfo_view();
+      GtkBox* box = GTK_BOX(gtk_notebook_get_nth_page(GTK_NOTEBOOK(procdata->notebook),
+						      PROCMAN_TAB_SYSINFO));
+      gtk_box_pack_start(box, ui, TRUE, TRUE, 0);
+      gtk_widget_show_all(ui);
+    }
+  }
+}