mirror of https://github.com/xzeldon/htop.git
142 lines
3.6 KiB
C
142 lines
3.6 KiB
C
/*
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htop
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(C) 2004-2006 Hisham H. Muhammad
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Released under the GNU GPL, see the COPYING file
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in the source distribution for its full text.
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This "Meter" written by Ian P. Hands (iphands@gmail.com).
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*/
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#include "BatteryMeter.h"
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#include "Meter.h"
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#include "ProcessList.h"
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#include "CRT.h"
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#include "String.h"
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#include "debug.h"
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int BatteryMeter_attributes[] = {
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BATTERY
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};
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static unsigned long int parseBatInfo(const char * fileName, const unsigned short int lineNum, const unsigned short int wordNum) {
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const DIR *batteryDir;
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const struct dirent *pDirEnt;
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const char batteryPath[] = PROCDIR "/acpi/battery/";
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batteryDir = opendir(batteryPath);
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if (batteryDir == NULL) {
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return 0;
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}
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char * string;
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typedef struct listLbl { char* content; struct listLbl* next; } list;
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list *myList = NULL;
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list *newEntry;
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/*
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Some of this is based off of code found in kismet (they claim it came from gkrellm).
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Written for multi battery use...
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*/
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for (pDirEnt= readdir((DIR*)batteryDir); pDirEnt; pDirEnt = readdir((DIR*)batteryDir)) {
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string = (char*)pDirEnt->d_name;
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if(!strcmp(string, ".") || !strcmp(string, ".."))
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continue;
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newEntry = calloc(1, sizeof(list));
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newEntry->next = myList;
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newEntry->content = string;
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myList = newEntry;
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}
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unsigned long int total = 0;
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for (newEntry = myList; newEntry; newEntry = newEntry->next) {
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const char infoPath[30];
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const FILE * file;
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char line[50];
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sprintf((char*)infoPath, "%s%s/%s", batteryPath, newEntry->content, fileName);
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if ((file = fopen(infoPath, "r")) == NULL) {
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return 0;
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}
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for (unsigned short int i = 0; i < lineNum; i++){
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fgets(line, sizeof line, (FILE*)file);
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}
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fclose((FILE*)file);
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const char * foundNumTmp = String_getToken(line, wordNum);
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const unsigned long int foundNum = atoi(foundNumTmp);
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free((char*)foundNumTmp);
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total += foundNum;
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}
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free(myList);
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free(newEntry);
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closedir((DIR*)batteryDir);
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return total;
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}
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static void BatteryMeter_setValues(Meter* this, char* buffer, int len) {
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FILE* file = fopen(PROCDIR "/acpi/ac_adapter/AC/state", "r");
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if (!file)
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file = fopen(PROCDIR "/acpi/ac_adapter/ADP1/state", "r");
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if (!file) {
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snprintf(buffer, len, "n/a");
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return;
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}
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char line [100];
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fgets(line, sizeof line, file);
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line[sizeof(line) - 1] = '\0';
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fclose(file);
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const unsigned long int totalFull = parseBatInfo("info", 3, 4);
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const unsigned long int totalRemain = parseBatInfo("state", 5, 3);
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const double percent = totalFull > 0 ? ((double)totalRemain * 100) / (double)totalFull : 0;
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if (totalFull == 0) {
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snprintf(buffer, len, "n/a");
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return;
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}
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this->values[0] = percent;
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const char* isOnline = String_getToken(line, 2);
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char *onAcText, *onBatteryText;
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if (this->mode == TEXT_METERMODE) {
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onAcText = "%.1f%% (Running on A/C)";
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onBatteryText = "%.1f%% (Running on battery)";
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} else {
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onAcText = "%.1f%%(A/C)";
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onBatteryText = "%.1f%%(bat)";
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}
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if (strcmp(String_getToken(line, 2),"on-line") == 0) {
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snprintf(buffer, len, onAcText, percent);
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} else {
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snprintf(buffer, len, onBatteryText, percent);
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}
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free((char*)isOnline);
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return;
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}
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MeterType BatteryMeter = {
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.setValues = BatteryMeter_setValues,
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.display = NULL,
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.mode = TEXT_METERMODE,
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.items = 1,
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.total = 100.0,
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.attributes = BatteryMeter_attributes,
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.name = "Battery",
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.uiName = "Battery",
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.caption = "Battery: "
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};
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