diff options
Diffstat (limited to 'Meter.h')
| -rw-r--r-- | Meter.h | 162 |
1 files changed, 162 insertions, 0 deletions
@@ -0,0 +1,162 @@ +#ifndef HEADER_Meter +#define HEADER_Meter +/* +htop - Meter.h +(C) 2004-2011 Hisham H. Muhammad +Released under the GNU GPLv2+, see the COPYING file +in the source distribution for its full text. +*/ + +#include "config.h" // IWYU pragma: keep + +#include <stdbool.h> +#include <stddef.h> +#include <stdint.h> +#include <sys/time.h> + +#include "ListItem.h" +#include "Object.h" +#include "ProcessList.h" + + +#define METER_TXTBUFFER_LEN 256 +#define METER_GRAPHDATA_SIZE 256 + +#define METER_BUFFER_CHECK(buffer, size, written) \ + do { \ + if ((written) < 0 || (size_t)(written) >= (size)) { \ + return; \ + } \ + (buffer) += (written); \ + (size) -= (size_t)(written); \ + } while (0) + +#define METER_BUFFER_APPEND_CHR(buffer, size, c) \ + do { \ + if ((size) < 2) { \ + return; \ + } \ + *(buffer)++ = c; \ + *(buffer) = '\0'; \ + (size)--; \ + if ((size) == 0) { \ + return; \ + } \ + } while (0) + + +struct Meter_; +typedef struct Meter_ Meter; + +typedef void(*Meter_Init)(Meter*); +typedef void(*Meter_Done)(Meter*); +typedef void(*Meter_UpdateMode)(Meter*, int); +typedef void(*Meter_UpdateValues)(Meter*); +typedef void(*Meter_Draw)(Meter*, int, int, int); +typedef const char* (*Meter_GetCaption)(const Meter*); +typedef void(*Meter_GetUiName)(const Meter*, char*, size_t); + +typedef struct MeterClass_ { + const ObjectClass super; + const Meter_Init init; + const Meter_Done done; + const Meter_UpdateMode updateMode; + const Meter_UpdateValues updateValues; + const Meter_Draw draw; + const Meter_GetCaption getCaption; + const Meter_GetUiName getUiName; + const int defaultMode; + const double total; + const int* const attributes; + const char* const name; /* internal name of the meter, must not contain any space */ + const char* const uiName; /* display name in header setup menu */ + const char* const caption; /* prefix in the actual header */ + const char* const description; /* optional meter description in header setup menu */ + const uint8_t maxItems; + const bool isMultiColumn; /* whether the meter draws multiple sub-columns (defaults to false) */ +} MeterClass; + +#define As_Meter(this_) ((const MeterClass*)((this_)->super.klass)) +#define Meter_initFn(this_) As_Meter(this_)->init +#define Meter_init(this_) As_Meter(this_)->init((Meter*)(this_)) +#define Meter_done(this_) As_Meter(this_)->done((Meter*)(this_)) +#define Meter_updateModeFn(this_) As_Meter(this_)->updateMode +#define Meter_updateMode(this_, m_) As_Meter(this_)->updateMode((Meter*)(this_), m_) +#define Meter_drawFn(this_) As_Meter(this_)->draw +#define Meter_doneFn(this_) As_Meter(this_)->done +#define Meter_updateValues(this_) As_Meter(this_)->updateValues((Meter*)(this_)) +#define Meter_getUiNameFn(this_) As_Meter(this_)->getUiName +#define Meter_getUiName(this_,n_,l_) As_Meter(this_)->getUiName((const Meter*)(this_),n_,l_) +#define Meter_getCaptionFn(this_) As_Meter(this_)->getCaption +#define Meter_getCaption(this_) (Meter_getCaptionFn(this_) ? As_Meter(this_)->getCaption((const Meter*)(this_)) : (this_)->caption) +#define Meter_defaultMode(this_) As_Meter(this_)->defaultMode +#define Meter_attributes(this_) As_Meter(this_)->attributes +#define Meter_name(this_) As_Meter(this_)->name +#define Meter_uiName(this_) As_Meter(this_)->uiName +#define Meter_isMultiColumn(this_) As_Meter(this_)->isMultiColumn + +typedef struct GraphData_ { + struct timeval time; + double values[METER_GRAPHDATA_SIZE]; +} GraphData; + +struct Meter_ { + Object super; + Meter_Draw draw; + + char* caption; + int mode; + unsigned int param; + GraphData* drawData; + int h; + int columnWidthCount; /**< only used internally by the Header */ + const ProcessList* pl; + uint8_t curItems; + const int* curAttributes; + char txtBuffer[METER_TXTBUFFER_LEN]; + double* values; + double total; + void* meterData; +}; + +typedef struct MeterMode_ { + Meter_Draw draw; + const char* uiName; + int h; +} MeterMode; + +typedef enum { + CUSTOM_METERMODE = 0, + BAR_METERMODE, + TEXT_METERMODE, + GRAPH_METERMODE, + LED_METERMODE, + LAST_METERMODE +} MeterModeId; + +typedef enum { + RATESTATUS_DATA, + RATESTATUS_INIT, + RATESTATUS_NODATA, + RATESTATUS_STALE +} MeterRateStatus; + +extern const MeterClass Meter_class; + +Meter* Meter_new(const ProcessList* pl, unsigned int param, const MeterClass* type); + +int Meter_humanUnit(char* buffer, unsigned long int value, size_t size); + +void Meter_delete(Object* cast); + +void Meter_setCaption(Meter* this, const char* caption); + +void Meter_setMode(Meter* this, int modeIndex); + +ListItem* Meter_toListItem(const Meter* this, bool moving); + +extern const MeterMode* const Meter_modes[]; + +extern const MeterClass BlankMeter_class; + +#endif |