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/* cpu.h
* Part of xfce4-cpugraph-plugin
*
* Copyright (c) Alexander Nordfelth <alex.nordfelth@telia.com>
* Copyright (c) gatopeich <gatoguan-os@yahoo.com>
* Copyright (c) 2007-2008 Angelo Arrifano <miknix@gmail.com>
* Copyright (c) 2007-2008 Lidiriel <lidiriel@coriolys.org>
* Copyright (c) 2010 Florian Rivoal <frivoal@gmail.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 2 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 Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _XFCE_CPUGRAPH_CPU_H_
#define _XFCE_CPUGRAPH_CPU_H_
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <libxfce4panel/libxfce4panel.h>
#include <xfconf/xfconf.h>
#include <string>
#include <vector>
#include "../xfce4cpp/rgba.hh"
#include "../xfce4cpp/timer.hh"
#include "os.h"
constexpr auto BORDER = 8;
constexpr auto STATS_SMT_BY_DEFAULT = false;
constexpr auto HIGHLIGHT_SMT_BY_DEFAULT = false;
constexpr auto MAX_HISTORY_SIZE = 100 * 1000;
constexpr auto MAX_LOAD_THRESHOLD = 0.2;
constexpr auto MAX_SIZE = 128;
constexpr auto MIN_SIZE = 1;
constexpr auto NONLINEAR_MODE_BASE = 1.04;
constexpr auto PER_CORE_SPACING_DEFAULT = 1;
constexpr auto PER_CORE_SPACING_MAX = 3;
constexpr auto PER_CORE_SPACING_MIN = 0;
enum CPUGraphMode
{
MODE_DISABLED = 0,
MODE_NORMAL = 1,
MODE_LED = 2,
MODE_NO_HISTORY = 3,
MODE_GRID = 4,
};
enum CPUGraphColorMode
{
COLOR_MODE_SOLID = 0,
COLOR_MODE_GRADIENT = 1,
COLOR_MODE_FIRE = 2,
COLOR_MODE_DETAILED = 3,
};
/* Number of milliseconds between updates */
enum CPUGraphUpdateRate
{
RATE_FASTEST = 0,
RATE_FAST = 1,
RATE_NORMAL = 2,
RATE_SLOW = 3,
RATE_SLOWEST = 4,
};
enum CPUGraphColorNumber
{
BG_COLOR = 0,
FG_COLOR1 = 1,
FG_COLOR2 = 2,
FG_COLOR3 = 3,
BARS_COLOR = 4,
SMT_ISSUES_COLOR = 5,
FG_COLOR_SYSTEM = 6,
FG_COLOR_USER = 7,
FG_COLOR_NICE = 8,
FG_COLOR_IOWAIT = 9,
NUM_COLORS = 10,
};
struct CpuLoad
{
gint64 timestamp; /* Microseconds since 1970-01-01 UTC, or zero */
/* Range of float values: from 0.0 to 1.0 */
/* Overall CPU load: user + system + nice */
gfloat value;
/* Detailed CPU load */
gfloat system;
gfloat user;
gfloat nice;
gfloat iowait;
} __attribute__((packed));
struct CPUGraph final : public std::enable_shared_from_this<CPUGraph>
{
/* GUI components */
XfcePanelPlugin *plugin;
GtkWidget *frame_widget;
GtkWidget *draw_area;
GtkWidget *box;
GtkWidget *ebox;
struct {
/* Widget pointers are NULL if bars are disabled */
GtkWidget *frame;
GtkWidget *draw_area;
GtkOrientation orientation;
} bars;
gint tooltip_last_value;
GtkWidget *tooltip_text;
/* Settings */
XfconfChannel *channel;
CPUGraphUpdateRate update_interval;
guint size;
CPUGraphMode mode;
guint color_mode;
std::string command;
xfce4::RGBA colors[NUM_COLORS];
guint tracked_core; /* 0 means "all CPU cores", an x >= 1 means "CPU core x-1" */
gfloat load_threshold; /* Range: from 0.0 to MAX_LOAD_THRESHOLD */
guint per_core_spacing;
/* Boolean settings */
bool command_in_terminal;
bool command_startup_notification;
bool has_barcolor;
bool has_bars;
bool has_border;
bool has_frame;
bool stats_smt;
bool highlight_smt;
bool non_linear;
bool per_core;
/* Runtime data */
std::unordered_map<guint, guint> cpu_to_index_cache;
std::unordered_map<guint, guint> cpu_to_index;
std::unordered_map<guint, guint> index_to_cpu;
guint nr_cores;
xfce4::SourceTag timeout_id;
struct {
gssize cap_pow2; /* Capacity. A power of 2. */
gssize size; /* size <= cap_pow2 */
gssize offset; /* Circular buffer position. Range: from 0 to (cap_pow2 - 1) */
std::vector<std::unique_ptr<CpuLoad[]>> data; /* Circular buffers */
gssize mask() const { return cap_pow2 - 1; }
} history;
std::unordered_map<guint, CpuData> cpu_data; /* size == nr_cores+1 */
std::unique_ptr<Topology> topology;
CpuStats stats;
std::vector<const CpuLoad *> nearest_cache;
std::vector<CpuLoad> non_linear_cache;
~CPUGraph();
// Called outside of "cpu.cc"
void set_bars (bool has_bars_arg);
void set_border (bool has_border_arg);
void set_color (CPUGraphColorNumber number, const xfce4::RGBA &color);
void set_color_mode (guint color_mode_arg);
void set_command (const std::string_view &command_arg);
void set_frame (bool has_frame_arg);
void set_in_terminal (bool in_terminal);
void set_load_threshold (gfloat threshold);
void set_mode (CPUGraphMode mode_arg);
void set_nonlinear_time (bool non_linear_arg);
void set_per_core (bool per_core_arg);
void set_per_core_spacing (guint spacing);
void set_size (guint size_arg);
void set_stats_smt (bool stats_smt_arg);
void set_smt (bool highlight_smt_arg);
void set_startup_notification (bool startup_notification);
void set_tracked_core (guint core);
void set_update_rate (CPUGraphUpdateRate rate);
void maybe_clear_smt_stats ();
// Called inside "cpu.cc"
bool is_smt_issues_enabled () const;
void create_bars (GtkOrientation orientation);
void delete_bars ();
void set_bars_size ();
guint nb_bars ();
void ebox_revalidate ();
};
guint get_update_interval_ms (CPUGraphUpdateRate rate);
#endif /* _XFCE_CPUGRAPH_CPU_H_ */
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