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updated battery meter code from Ian Hands, slightly tweaked

This commit is contained in:
Hisham Muhammad 2009-04-27 21:48:09 +00:00
parent 510213591b
commit 20bb68824d
1 changed files with 249 additions and 59 deletions
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270
BatteryMeter.c
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@ -4,7 +4,7 @@
Released under the GNU GPL, see the COPYING file
in the source distribution for its full text.
This "Meter" written by Ian P. Hands (iphands@gmail.com).
This "Meter" written by Ian P. Hands (iphands@gmail.com, ihands@redhat.com).
*/
#include "BatteryMeter.h"
@ -14,13 +14,39 @@
#include "String.h"
#include "debug.h"
/*{
typedef enum ACPresence_ {
AC_ABSENT,
AC_PRESENT,
AC_ERROR
} ACPresence;
}*/
int BatteryMeter_attributes[] = {
BATTERY
};
static unsigned long int parseBatInfo(const char * fileName, const unsigned short int lineNum, const unsigned short int wordNum) {
static unsigned long int parseUevent(FILE * file, char *key) {
char line[100];
unsigned long int dValue = 0;
while (fgets(line, sizeof line, file)) {
if (strncmp(line, key, strlen(key)) == 0) {
char *value;
value = strtok(line, "=");
value = strtok(NULL, "=");
dValue = atoi(value);
break;
}
}
return dValue;
}
static unsigned long int parseBatInfo(const char *fileName, const unsigned short int lineNum, const unsigned short int wordNum) {
const DIR *batteryDir;
const struct dirent *pDirEnt;
const struct dirent *dirEntries;
const char batteryPath[] = PROCDIR "/acpi/battery/";
batteryDir = opendir(batteryPath);
@ -29,8 +55,11 @@ static unsigned long int parseBatInfo(const char * fileName, const unsigned shor
return 0;
}
char * string;
typedef struct listLbl { char* content; struct listLbl* next; } list;
char *entryName;
typedef struct listLbl {
char *content;
struct listLbl *next;
} list;
list *myList = NULL;
list *newEntry;
@ -39,77 +68,235 @@ static unsigned long int parseBatInfo(const char * fileName, const unsigned shor
Some of this is based off of code found in kismet (they claim it came from gkrellm).
Written for multi battery use...
*/
for (pDirEnt= readdir((DIR*)batteryDir); pDirEnt; pDirEnt = readdir((DIR*)batteryDir)) {
string = (char*)pDirEnt->d_name;
if(!strcmp(string, ".") || !strcmp(string, ".."))
for (dirEntries = readdir((DIR *) batteryDir); dirEntries; dirEntries = readdir((DIR *) batteryDir)) {
entryName = (char *) dirEntries->d_name;
if (strncmp(entryName, "BAT", 3))
continue;
newEntry = calloc(1, sizeof(list));
newEntry->next = myList;
newEntry->content = string;
newEntry->content = entryName;
myList = newEntry;
}
unsigned long int total = 0;
for (newEntry = myList; newEntry; newEntry = newEntry->next) {
const char infoPath[30];
const FILE * file;
const FILE *file;
char line[50];
sprintf((char*)infoPath, "%s%s/%s", batteryPath, newEntry->content, fileName);
sprintf((char *) infoPath, "%s%s/%s", batteryPath, newEntry->content, fileName);
if ((file = fopen(infoPath, "r")) == NULL) {
return 0;
}
for (unsigned short int i = 0; i < lineNum; i++){
fgets(line, sizeof line, (FILE*)file);
for (unsigned short int i = 0; i < lineNum; i++) {
fgets(line, sizeof line, (FILE *) file);
}
fclose((FILE*)file);
fclose((FILE *) file);
const char * foundNumTmp = String_getToken(line, wordNum);
const char *foundNumTmp = String_getToken(line, wordNum);
const unsigned long int foundNum = atoi(foundNumTmp);
free((char*)foundNumTmp);
free((char *) foundNumTmp);
total += foundNum;
}
free(myList);
free(newEntry);
closedir((DIR*)batteryDir);
closedir((DIR *) batteryDir);
return total;
}
static void BatteryMeter_setValues(Meter* this, char* buffer, int len) {
FILE* file = fopen(PROCDIR "/acpi/ac_adapter/AC/state", "r");
if (!file)
file = fopen(PROCDIR "/acpi/ac_adapter/ADP1/state", "r");
static ACPresence chkIsOnline() {
FILE *file = NULL;
ACPresence isOn = AC_ERROR;
if (access(PROCDIR "/acpi/ac_adapter", F_OK) == 0) {
const struct dirent *dirEntries;
char *power_supplyPath = PROCDIR "/acpi/ac_adapter";
DIR *power_supplyDir = opendir(power_supplyPath);
char *entryName;
if (!power_supplyDir) {
closedir(power_supplyDir);
return AC_ERROR;
}
for (dirEntries = readdir((DIR *) power_supplyDir); dirEntries; dirEntries = readdir((DIR *) power_supplyDir)) {
entryName = (char *) dirEntries->d_name;
if (strncmp(entryName, "A", 1)) {
continue;
}
char statePath[50];
sprintf((char *) statePath, "%s/%s/state", power_supplyPath, entryName);
file = fopen(statePath, "r");
if (!file) {
isOn = AC_ERROR;
continue;
}
char line[100];
fgets(line, sizeof line, file);
line[sizeof(line) - 1] = '\0';
if (file) {
fclose(file);
file = NULL;
}
const char *isOnline = String_getToken(line, 2);
if (strcmp(isOnline, "on-line") == 0) {
free((char *) isOnline);
isOn = AC_PRESENT;
// If any AC adapter is being used then stop
break;
} else {
isOn = AC_ABSENT;
}
free((char *) isOnline);
}
if (power_supplyDir)
closedir(power_supplyDir);
} else {
char *power_supplyPath = "/sys/class/power_supply";
if (access("/sys/class/power_supply", F_OK) == 0) {
const struct dirent *dirEntries;
DIR *power_supplyDir = opendir(power_supplyPath);
char *entryName;
if (!power_supplyDir) {
return AC_ERROR;
}
for (dirEntries = readdir((DIR *) power_supplyDir); dirEntries; dirEntries = readdir((DIR *) power_supplyDir)) {
entryName = (char *) dirEntries->d_name;
if (strncmp(entryName, "A", 1)) {
continue;
}
char onlinePath[50];
sprintf((char *) onlinePath, "%s/%s/online", power_supplyPath, entryName);
file = fopen(onlinePath, "r");
if (!file) {
isOn = AC_ERROR;
continue;
}
isOn = (fgetc(file) - '0');
if (file) {
fclose(file);
file = NULL;
}
if (isOn == AC_PRESENT) {
// If any AC adapter is being used then stop
break;
} else {
continue;
}
}
if (power_supplyDir)
closedir(power_supplyDir);
}
}
// Just in case :-)
if (file)
fclose(file);
return isOn;
}
static double getProcBatData() {
const unsigned long int totalFull = parseBatInfo("info", 3, 4);
if (totalFull == 0)
return 0;
const unsigned long int totalRemain = parseBatInfo("state", 5, 3);
if (totalRemain == 0)
return 0;
double percent = totalFull > 0 ? ((double) totalRemain * 100) / (double) totalFull : 0;
return percent;
}
static double getSysBatData() {
const struct dirent *dirEntries;
char *power_supplyPath = "/sys/class/power_supply/";
DIR *power_supplyDir = opendir(power_supplyPath);
if (!power_supplyDir) {
closedir(power_supplyDir);
return 0;
}
char *entryName;
unsigned long int totalFull = 0;
unsigned long int totalRemain = 0;
for (dirEntries = readdir((DIR *) power_supplyDir); dirEntries; dirEntries = readdir((DIR *) power_supplyDir)) {
entryName = (char *) dirEntries->d_name;
if (strncmp(entryName, "BAT", 3)) {
continue;
}
const char ueventPath[50];
sprintf((char *) ueventPath, "%s%s/uevent", power_supplyPath, entryName);
FILE *file;
if ((file = fopen(ueventPath, "r")) == NULL) {
closedir(power_supplyDir);
return 0;
}
totalFull += parseUevent(file, "POWER_SUPPLY_ENERGY_FULL=");
totalRemain += parseUevent(file, "POWER_SUPPLY_ENERGY_NOW=");
fclose(file);
}
const double percent = totalFull > 0 ? ((double) totalRemain * 100) / (double) totalFull : 0;
closedir(power_supplyDir);
return percent;
}
static void BatteryMeter_setValues(Meter * this, char *buffer, int len) {
double percent = getProcBatData();
if (percent == 0) {
percent = getSysBatData();
if (percent == 0) {
snprintf(buffer, len, "n/a");
return;
}
char line [100];
fgets(line, sizeof line, file);
line[sizeof(line) - 1] = '\0';
fclose(file);
const unsigned long int totalFull = parseBatInfo("info", 3, 4);
const unsigned long int totalRemain = parseBatInfo("state", 5, 3);
const double percent = totalFull > 0 ? ((double)totalRemain * 100) / (double)totalFull : 0;
if (totalFull == 0) {
snprintf(buffer, len, "n/a");
return;
}
this->values[0] = percent;
const char* isOnline = String_getToken(line, 2);
char *onAcText, *onBatteryText;
char *onAcText, *onBatteryText, *unknownText;
unknownText = "%.1f%%";
if (this->mode == TEXT_METERMODE) {
onAcText = "%.1f%% (Running on A/C)";
onBatteryText = "%.1f%% (Running on battery)";
@ -118,13 +305,16 @@ static void BatteryMeter_setValues(Meter* this, char* buffer, int len) {
onBatteryText = "%.1f%%(bat)";
}
if (strcmp(String_getToken(line, 2),"on-line") == 0) {
ACPresence isOnLine = chkIsOnline();
if (isOnLine == AC_PRESENT) {
snprintf(buffer, len, onAcText, percent);
} else {
} else if (isOnLine == AC_ABSENT) {
snprintf(buffer, len, onBatteryText, percent);
} else {
snprintf(buffer, len, unknownText, percent);
}
free((char*)isOnline);
return;
}