mirror of https://github.com/xzeldon/htop.git
142 lines
4.4 KiB
C
142 lines
4.4 KiB
C
#ifndef HEADER_Meter
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#define HEADER_Meter
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/*
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htop - Meter.h
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(C) 2004-2011 Hisham H. Muhammad
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Released under the GNU GPLv2, see the COPYING file
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in the source distribution for its full text.
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*/
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#include "config.h" // IWYU pragma: keep
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#include <stdbool.h>
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#include <stdint.h>
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#include <sys/time.h>
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#include "ListItem.h"
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#include "Object.h"
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#include "ProcessList.h"
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#define METER_BUFFER_LEN 256
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#define METER_BUFFER_CHECK(buffer, size, written) \
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do { \
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if ((written) < 0 || (size_t)(written) >= (size)) { \
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return; \
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} \
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(buffer) += (written); \
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(size) -= (size_t)(written); \
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} while (0)
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#define METER_BUFFER_APPEND_CHR(buffer, size, c) \
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do { \
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if ((size) < 2) { \
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return; \
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} \
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*(buffer)++ = c; \
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*(buffer) = '\0'; \
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(size)--; \
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if ((size) == 0) { \
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return; \
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} \
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} while (0)
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struct Meter_;
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typedef struct Meter_ Meter;
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typedef void(*Meter_Init)(Meter*);
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typedef void(*Meter_Done)(Meter*);
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typedef void(*Meter_UpdateMode)(Meter*, int);
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typedef void(*Meter_UpdateValues)(Meter*, char*, size_t);
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typedef void(*Meter_Draw)(Meter*, int, int, int);
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typedef struct MeterClass_ {
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const ObjectClass super;
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const Meter_Init init;
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const Meter_Done done;
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const Meter_UpdateMode updateMode;
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const Meter_Draw draw;
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const Meter_UpdateValues updateValues;
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const int defaultMode;
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const double total;
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const int* const attributes;
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const char* const name; /* internal name of the meter, must not contain any space */
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const char* const uiName; /* display name in header setup menu */
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const char* const caption; /* prefix in the actual header */
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const char* const description; /* optional meter description in header setup menu */
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const uint8_t maxItems;
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} MeterClass;
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#define As_Meter(this_) ((const MeterClass*)((this_)->super.klass))
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#define Meter_initFn(this_) As_Meter(this_)->init
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#define Meter_init(this_) As_Meter(this_)->init((Meter*)(this_))
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#define Meter_done(this_) As_Meter(this_)->done((Meter*)(this_))
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#define Meter_updateModeFn(this_) As_Meter(this_)->updateMode
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#define Meter_updateMode(this_, m_) As_Meter(this_)->updateMode((Meter*)(this_), m_)
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#define Meter_drawFn(this_) As_Meter(this_)->draw
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#define Meter_doneFn(this_) As_Meter(this_)->done
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#define Meter_updateValues(this_, buf_, sz_) \
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As_Meter(this_)->updateValues((Meter*)(this_), buf_, sz_)
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#define Meter_defaultMode(this_) As_Meter(this_)->defaultMode
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#define Meter_attributes(this_) As_Meter(this_)->attributes
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#define Meter_name(this_) As_Meter(this_)->name
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#define Meter_uiName(this_) As_Meter(this_)->uiName
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typedef struct GraphData_ {
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struct timeval time;
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double values[METER_BUFFER_LEN];
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} GraphData;
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struct Meter_ {
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Object super;
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Meter_Draw draw;
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char* caption;
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int mode;
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int param;
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GraphData* drawData;
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int h;
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const ProcessList* pl;
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uint8_t curItems;
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double* values;
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double total;
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void* meterData;
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};
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typedef struct MeterMode_ {
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Meter_Draw draw;
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const char* uiName;
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int h;
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} MeterMode;
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typedef enum {
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CUSTOM_METERMODE = 0,
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BAR_METERMODE,
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TEXT_METERMODE,
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GRAPH_METERMODE,
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LED_METERMODE,
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LAST_METERMODE
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} MeterModeId;
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extern const MeterClass Meter_class;
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Meter* Meter_new(const ProcessList* pl, int param, const MeterClass* type);
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int Meter_humanUnit(char* buffer, unsigned long int value, size_t size);
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void Meter_delete(Object* cast);
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void Meter_setCaption(Meter* this, const char* caption);
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void Meter_setMode(Meter* this, int modeIndex);
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ListItem* Meter_toListItem(Meter* this, bool moving);
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extern const MeterMode* const Meter_modes[];
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extern const MeterClass BlankMeter_class;
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#endif
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