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updated battery meter code from Ian Hands, slightly tweaked
This commit is contained in:
Hisham Muhammad
parent
510213591b
commit
20bb68824d
308
BatteryMeter.c
308
BatteryMeter.c
@ -4,7 +4,7 @@
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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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This "Meter" written by Ian P. Hands (iphands@gmail.com, ihands@redhat.com).
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*/
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#include "BatteryMeter.h"
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@ -14,102 +14,289 @@
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#include "String.h"
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#include "debug.h"
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/*{
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typedef enum ACPresence_ {
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AC_ABSENT,
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AC_PRESENT,
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AC_ERROR
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} ACPresence;
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}*/
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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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static unsigned long int parseUevent(FILE * file, char *key) {
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char line[100];
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unsigned long int dValue = 0;
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while (fgets(line, sizeof line, file)) {
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if (strncmp(line, key, strlen(key)) == 0) {
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char *value;
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value = strtok(line, "=");
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value = strtok(NULL, "=");
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dValue = atoi(value);
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break;
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}
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}
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return dValue;
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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 struct dirent *dirEntries;
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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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char *entryName;
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typedef struct listLbl {
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char *content;
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struct listLbl *next;
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} 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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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 (dirEntries = readdir((DIR *) batteryDir); dirEntries; dirEntries = readdir((DIR *) batteryDir)) {
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entryName = (char *) dirEntries->d_name;
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if (strncmp(entryName, "BAT", 3))
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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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newEntry->content = entryName;
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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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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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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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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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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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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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static ACPresence chkIsOnline() {
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FILE *file = NULL;
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ACPresence isOn = AC_ERROR;
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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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if (access(PROCDIR "/acpi/ac_adapter", F_OK) == 0) {
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const struct dirent *dirEntries;
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char *power_supplyPath = PROCDIR "/acpi/ac_adapter";
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DIR *power_supplyDir = opendir(power_supplyPath);
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char *entryName;
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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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if (!power_supplyDir) {
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closedir(power_supplyDir);
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return AC_ERROR;
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}
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for (dirEntries = readdir((DIR *) power_supplyDir); dirEntries; dirEntries = readdir((DIR *) power_supplyDir)) {
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entryName = (char *) dirEntries->d_name;
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if (strncmp(entryName, "A", 1)) {
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continue;
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}
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char statePath[50];
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sprintf((char *) statePath, "%s/%s/state", power_supplyPath, entryName);
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file = fopen(statePath, "r");
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if (!file) {
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isOn = AC_ERROR;
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continue;
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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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if (file) {
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fclose(file);
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file = NULL;
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}
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const char *isOnline = String_getToken(line, 2);
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if (strcmp(isOnline, "on-line") == 0) {
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free((char *) isOnline);
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isOn = AC_PRESENT;
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// If any AC adapter is being used then stop
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break;
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} else {
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isOn = AC_ABSENT;
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}
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free((char *) isOnline);
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}
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if (power_supplyDir)
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closedir(power_supplyDir);
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} else {
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char *power_supplyPath = "/sys/class/power_supply";
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if (access("/sys/class/power_supply", F_OK) == 0) {
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const struct dirent *dirEntries;
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DIR *power_supplyDir = opendir(power_supplyPath);
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char *entryName;
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if (!power_supplyDir) {
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return AC_ERROR;
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}
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for (dirEntries = readdir((DIR *) power_supplyDir); dirEntries; dirEntries = readdir((DIR *) power_supplyDir)) {
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entryName = (char *) dirEntries->d_name;
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if (strncmp(entryName, "A", 1)) {
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continue;
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}
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char onlinePath[50];
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sprintf((char *) onlinePath, "%s/%s/online", power_supplyPath, entryName);
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file = fopen(onlinePath, "r");
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if (!file) {
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isOn = AC_ERROR;
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continue;
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}
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isOn = (fgetc(file) - '0');
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if (file) {
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fclose(file);
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file = NULL;
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}
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if (isOn == AC_PRESENT) {
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// If any AC adapter is being used then stop
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break;
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} else {
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continue;
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}
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}
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if (power_supplyDir)
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closedir(power_supplyDir);
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}
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}
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// Just in case :-)
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if (file)
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fclose(file);
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return isOn;
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}
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static double getProcBatData() {
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const unsigned long int totalFull = parseBatInfo("info", 3, 4);
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if (totalFull == 0)
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return 0;
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const unsigned long int totalRemain = parseBatInfo("state", 5, 3);
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if (totalRemain == 0)
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return 0;
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double percent = totalFull > 0 ? ((double) totalRemain * 100) / (double) totalFull : 0;
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return percent;
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}
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static double getSysBatData() {
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const struct dirent *dirEntries;
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char *power_supplyPath = "/sys/class/power_supply/";
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DIR *power_supplyDir = opendir(power_supplyPath);
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if (!power_supplyDir) {
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closedir(power_supplyDir);
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return 0;
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}
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char *entryName;
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unsigned long int totalFull = 0;
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unsigned long int totalRemain = 0;
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for (dirEntries = readdir((DIR *) power_supplyDir); dirEntries; dirEntries = readdir((DIR *) power_supplyDir)) {
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entryName = (char *) dirEntries->d_name;
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if (strncmp(entryName, "BAT", 3)) {
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continue;
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}
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const char ueventPath[50];
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sprintf((char *) ueventPath, "%s%s/uevent", power_supplyPath, entryName);
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FILE *file;
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if ((file = fopen(ueventPath, "r")) == NULL) {
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closedir(power_supplyDir);
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return 0;
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}
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totalFull += parseUevent(file, "POWER_SUPPLY_ENERGY_FULL=");
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totalRemain += parseUevent(file, "POWER_SUPPLY_ENERGY_NOW=");
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fclose(file);
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}
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const double percent = totalFull > 0 ? ((double) totalRemain * 100) / (double) totalFull : 0;
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closedir(power_supplyDir);
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return percent;
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}
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static void BatteryMeter_setValues(Meter * this, char *buffer, int len) {
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double percent = getProcBatData();
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if (percent == 0) {
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percent = getSysBatData();
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if (percent == 0) {
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snprintf(buffer, len, "n/a");
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return;
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}
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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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char *onAcText, *onBatteryText, *unknownText;
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unknownText = "%.1f%%";
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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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@ -118,18 +305,21 @@ static void BatteryMeter_setValues(Meter* this, char* buffer, int len) {
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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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ACPresence isOnLine = chkIsOnline();
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if (isOnLine == AC_PRESENT) {
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snprintf(buffer, len, onAcText, percent);
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} else if (isOnLine == AC_ABSENT) {
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snprintf(buffer, len, onBatteryText, percent);
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} else {
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snprintf(buffer, len, onBatteryText, percent);
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snprintf(buffer, len, unknownText, 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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.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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