Move platform-dependent parts of Linux battery meter.

11 files changed, 472 insertions, 271 deletions

diff --git a/BatteryMeter.c b/BatteryMeter.c
index f2dfa6ab..5cd0c389 100644
--- a/BatteryMeter.c
+++ b/BatteryMeter.c
@@ -9,14 +9,13 @@ This meter written by Ian P. Hands (iphands@gmail.com, ihands@redhat.com).
 
 #include "BatteryMeter.h"
 
+#include "Platform.h"
 #include "ProcessList.h"
 #include "CRT.h"
 #include "String.h"
 
 #include <string.h>
 #include <stdlib.h>
-#include <dirent.h>
-#include <unistd.h>
 
 /*{
 #include "Meter.h"
@@ -26,273 +25,22 @@ typedef enum ACPresence_ {
    AC_PRESENT,
    AC_ERROR
 } ACPresence;
-
 }*/
 
 int BatteryMeter_attributes[] = {
    BATTERY
 };
 
-static unsigned long int parseUevent(FILE * file, const char *key) {
-   char line[100];
-   unsigned long int dValue = 0;
-   char* saveptr;
-
-   while (fgets(line, sizeof line, file)) {
-      if (strncmp(line, key, strlen(key)) == 0) {
-         char *value;
-         strtok_r(line, "=", &saveptr);
-         value = strtok_r(NULL, "=", &saveptr);
-         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 char batteryPath[] = PROCDIR "/acpi/battery/";
-   DIR* batteryDir = opendir(batteryPath);
-   if (!batteryDir)
-      return 0;
-
-   #define MAX_BATTERIES 64
-   char* batteries[MAX_BATTERIES];
-   unsigned int nBatteries = 0;
-   memset(batteries, 0, MAX_BATTERIES * sizeof(char*));
-
-   struct dirent result;
-   struct dirent* dirEntry;
-   while (nBatteries < MAX_BATTERIES) {
-      int err = readdir_r(batteryDir, &result, &dirEntry);
-      if (err || !dirEntry)
-         break;
-      char* entryName = dirEntry->d_name;
-      if (strncmp(entryName, "BAT", 3))
-         continue;
-      batteries[nBatteries] = strdup(entryName);
-      nBatteries++;
-   }
-   closedir(batteryDir);
-
-   unsigned long int total = 0;
-   for (unsigned int i = 0; i < nBatteries; i++) {
-      char infoPath[30];
-      snprintf(infoPath, sizeof infoPath, "%s%s/%s", batteryPath, batteries[i], fileName);
-
-      FILE* file = fopen(infoPath, "r");
-      if (!file) {
-         break;
-      }
-
-      char line[50] = "";
-      for (unsigned short int i = 0; i < lineNum; i++) {
-         char* ok = fgets(line, sizeof line, file);
-         if (!ok) break;
-      }
-
-      fclose(file);
-
-      char *foundNumStr = String_getToken(line, wordNum);
-      const unsigned long int foundNum = atoi(foundNumStr);
-      free(foundNumStr);
-
-      total += foundNum;
-   }
-
-   for (unsigned int i = 0; i < nBatteries; i++) {
-      free(batteries[i]);
-   }
-
-   return total;
-}
-
-static ACPresence procAcpiCheck() {
-   ACPresence isOn = AC_ERROR;
-   const char *power_supplyPath = PROCDIR "/acpi/ac_adapter";
-   DIR *power_supplyDir = opendir(power_supplyPath);
-   if (!power_supplyDir) {
-      return AC_ERROR;
-   }
-
-   struct dirent result;
-   struct dirent* dirEntry;
-   for (;;) {
-      int err = readdir_r((DIR *) power_supplyDir, &result, &dirEntry);
-      if (err || !dirEntry)
-         break;
-
-      char* entryName = (char *) dirEntry->d_name;
-
-      if (entryName[0] != 'A')
-         continue;
-
-      char statePath[50];
-      snprintf((char *) statePath, sizeof statePath, "%s/%s/state", power_supplyPath, entryName);
-      FILE* file = fopen(statePath, "r");
-
-      if (!file) {
-         isOn = AC_ERROR;
-         continue;
-      }
-
-      char line[100];
-      fgets(line, sizeof line, file);
-      line[sizeof(line) - 1] = '\0';
-
-      fclose(file);
-
-      const char *isOnline = String_getToken(line, 2);
-
-      if (strcmp(isOnline, "on-line") == 0) {
-         isOn = AC_PRESENT;
-      } else {
-         isOn = AC_ABSENT;
-      }
-      free((char *) isOnline);
-      if (isOn == AC_PRESENT) {
-         break;
-      }
-   }
-
-   if (power_supplyDir)
-      closedir(power_supplyDir);
-   return isOn;
-}
-
-static ACPresence sysCheck() {
-   ACPresence isOn = AC_ERROR;
-   const char *power_supplyPath = "/sys/class/power_supply";
-   DIR *power_supplyDir = opendir(power_supplyPath);
-   if (!power_supplyDir) {
-      return AC_ERROR;
-   }
-
-   struct dirent result;
-   struct dirent* dirEntry;
-   for (;;) {
-      int err = readdir_r((DIR *) power_supplyDir, &result, &dirEntry);
-      if (err || !dirEntry)
-         break;
-
-      char* entryName = (char *) dirEntry->d_name;
-      if (strncmp(entryName, "A", 1)) {
-         continue;
-      }
-      char onlinePath[50];
-      snprintf((char *) onlinePath, sizeof onlinePath, "%s/%s/online", power_supplyPath, entryName);
-      FILE* file = fopen(onlinePath, "r");
-      if (!file) {
-         isOn = AC_ERROR;
-      } else {
-         isOn = (fgetc(file) - '0');
-         fclose(file);
-         if (isOn == AC_PRESENT) {
-            // If any AC adapter is being used then stop
-            break;
-         }
-      }
-   }
-
-   if (power_supplyDir)
-      closedir(power_supplyDir);
-
-   return isOn;
-}
-
-static ACPresence chkIsOnline() {
-   if (access(PROCDIR "/acpi/ac_adapter", F_OK) == 0) {
-      return procAcpiCheck();
-   } else if (access("/sys/class/power_supply", F_OK) == 0) {
-      return sysCheck();
-   } else {
-      return AC_ERROR;
-   }
-}
-
-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;
-
-   return totalRemain * 100.0 / (double) totalFull;
-}
-
-static double getSysBatData() {
-   const char *power_supplyPath = "/sys/class/power_supply/";
-   DIR *power_supplyDir = opendir(power_supplyPath);
-   if (!power_supplyDir)
-      return 0;
-
-   unsigned long int totalFull = 0;
-   unsigned long int totalRemain = 0;
-
-   struct dirent result;
-   struct dirent* dirEntry;
-   for (;;) {
-      int err = readdir_r((DIR *) power_supplyDir, &result, &dirEntry);
-      if (err || !dirEntry)
-         break;
-      char* entryName = (char *) dirEntry->d_name;
-
-      if (strncmp(entryName, "BAT", 3)) {
-         continue;
-      }
-
-      const char ueventPath[50];
-
-      snprintf((char *) ueventPath, sizeof ueventPath, "%s%s/uevent", power_supplyPath, entryName);
-
-      FILE *file;
-      if ((file = fopen(ueventPath, "r")) == NULL) {
-         closedir(power_supplyDir);
-         return 0;
-      }
-
-      if ((totalFull += parseUevent(file, "POWER_SUPPLY_ENERGY_FULL="))) {
-         totalRemain += parseUevent(file, "POWER_SUPPLY_ENERGY_NOW=");
-      } else {
-         //reset file pointer
-         if (fseek(file, 0, SEEK_SET) < 0) {
-            closedir(power_supplyDir);
-            fclose(file);
-            return 0;
-         }
-      }
-
-      //Some systems have it as CHARGE instead of ENERGY.
-      if ((totalFull += parseUevent(file, "POWER_SUPPLY_CHARGE_FULL="))) {
-         totalRemain += parseUevent(file, "POWER_SUPPLY_CHARGE_NOW=");
-      } else {
-        //reset file pointer
-         if (fseek(file, 0, SEEK_SET) < 0) {
-            closedir(power_supplyDir);
-            fclose(file);
-            return 0;
-         }
-      }
-
-      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;
-      }
+   ACPresence isOnAC;
+   double percent;
+   
+   Platform_getBatteryLevel(&percent, &isOnAC);
+
+   if (percent == -1) {
+      this->values[0] = 0;
+      snprintf(buffer, len, "n/a");
+      return;
    }
 
    this->values[0] = percent;
@@ -308,11 +56,9 @@ static void BatteryMeter_setValues(Meter * this, char *buffer, int len) {
       onBatteryText = "%.1f%%(bat)";
    }
 
-   ACPresence isOnLine = chkIsOnline();
-
-   if (isOnLine == AC_PRESENT) {
+   if (isOnAC == AC_PRESENT) {
       snprintf(buffer, len, onAcText, percent);
-   } else if (isOnLine == AC_ABSENT) {
+   } else if (isOnAC == AC_ABSENT) {
       snprintf(buffer, len, onBatteryText, percent);
    } else {
       snprintf(buffer, len, unknownText, percent);
diff --git a/BatteryMeter.h b/BatteryMeter.h
index 25fd3c92..bf8d2e82 100644
--- a/BatteryMeter.h
+++ b/BatteryMeter.h
@@ -19,7 +19,6 @@ typedef enum ACPresence_ {
    AC_ERROR
 } ACPresence;
 
-
 extern int BatteryMeter_attributes[];
 
 extern MeterClass BatteryMeter_class;
diff --git a/Makefile.am b/Makefile.am
index 5ce4c23a..0c6eaca3 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -35,10 +35,10 @@ HostnameMeter.h OpenFilesScreen.h Affinity.h IncSet.h Action.h
 
 if HTOP_LINUX
 myhtopplatsources = linux/Platform.c linux/IOPriorityPanel.c linux/IOPriority.c \
-linux/LinuxProcess.c linux/LinuxProcessList.c linux/LinuxCRT.c
+linux/LinuxProcess.c linux/LinuxProcessList.c linux/LinuxCRT.c linux/Battery.c
 
 myhtopplatheaders = linux/Platform.h linux/IOPriorityPanel.h linux/IOPriority.h \
-linux/LinuxProcess.h linux/LinuxProcessList.h linux/LinuxCRT.h
+linux/LinuxProcess.h linux/LinuxProcessList.h linux/LinuxCRT.h linux/Battery.h
 endif
 
 if HTOP_UNSUPPORTED
diff --git a/linux/Battery.c b/linux/Battery.c
new file mode 100644
index 00000000..eb458af8
--- /dev/null
+++ b/linux/Battery.c
@@ -0,0 +1,269 @@
+/*
+htop - linux/Battery.c
+(C) 2004-2014 Hisham H. Muhammad
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+
+Linux battery readings written by Ian P. Hands (iphands@gmail.com, ihands@redhat.com).
+*/
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <dirent.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include "BatteryMeter.h"
+#include "String.h"
+
+static unsigned long int parseUevent(FILE * file, const char *key) {
+   char line[100];
+   unsigned long int dValue = 0;
+   char* saveptr;
+
+   while (fgets(line, sizeof line, file)) {
+      if (strncmp(line, key, strlen(key)) == 0) {
+         char *value;
+         strtok_r(line, "=", &saveptr);
+         value = strtok_r(NULL, "=", &saveptr);
+         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 char batteryPath[] = PROCDIR "/acpi/battery/";
+   DIR* batteryDir = opendir(batteryPath);
+   if (!batteryDir)
+      return 0;
+
+   #define MAX_BATTERIES 64
+   char* batteries[MAX_BATTERIES];
+   unsigned int nBatteries = 0;
+   memset(batteries, 0, MAX_BATTERIES * sizeof(char*));
+
+   struct dirent result;
+   struct dirent* dirEntry;
+   while (nBatteries < MAX_BATTERIES) {
+      int err = readdir_r(batteryDir, &result, &dirEntry);
+      if (err || !dirEntry)
+         break;
+      char* entryName = dirEntry->d_name;
+      if (strncmp(entryName, "BAT", 3))
+         continue;
+      batteries[nBatteries] = strdup(entryName);
+      nBatteries++;
+   }
+   closedir(batteryDir);
+
+   unsigned long int total = 0;
+   for (unsigned int i = 0; i < nBatteries; i++) {
+      char infoPath[30];
+      snprintf(infoPath, sizeof infoPath, "%s%s/%s", batteryPath, batteries[i], fileName);
+
+      FILE* file = fopen(infoPath, "r");
+      if (!file) {
+         break;
+      }
+
+      char line[50] = "";
+      for (unsigned short int i = 0; i < lineNum; i++) {
+         char* ok = fgets(line, sizeof line, file);
+         if (!ok) break;
+      }
+
+      fclose(file);
+
+      char *foundNumStr = String_getToken(line, wordNum);
+      const unsigned long int foundNum = atoi(foundNumStr);
+      free(foundNumStr);
+
+      total += foundNum;
+   }
+
+   for (unsigned int i = 0; i < nBatteries; i++) {
+      free(batteries[i]);
+   }
+
+   return total;
+}
+
+static ACPresence procAcpiCheck() {
+   ACPresence isOn = AC_ERROR;
+   const char *power_supplyPath = PROCDIR "/acpi/ac_adapter";
+   DIR *power_supplyDir = opendir(power_supplyPath);
+   if (!power_supplyDir) {
+      return AC_ERROR;
+   }
+
+   struct dirent result;
+   struct dirent* dirEntry;
+   for (;;) {
+      int err = readdir_r((DIR *) power_supplyDir, &result, &dirEntry);
+      if (err || !dirEntry)
+         break;
+
+      char* entryName = (char *) dirEntry->d_name;
+
+      if (entryName[0] != 'A')
+         continue;
+
+      char statePath[50];
+      snprintf((char *) statePath, sizeof statePath, "%s/%s/state", power_supplyPath, entryName);
+      FILE* file = fopen(statePath, "r");
+
+      if (!file) {
+         isOn = AC_ERROR;
+         continue;
+      }
+
+      char line[100];
+      fgets(line, sizeof line, file);
+      line[sizeof(line) - 1] = '\0';
+
+      fclose(file);
+
+      const char *isOnline = String_getToken(line, 2);
+
+      if (strcmp(isOnline, "on-line") == 0) {
+         isOn = AC_PRESENT;
+      } else {
+         isOn = AC_ABSENT;
+      }
+      free((char *) isOnline);
+      if (isOn == AC_PRESENT) {
+         break;
+      }
+   }
+
+   if (power_supplyDir)
+      closedir(power_supplyDir);
+   return isOn;
+}
+
+static ACPresence sysCheck() {
+   ACPresence isOn = AC_ERROR;
+   const char *power_supplyPath = "/sys/class/power_supply";
+   DIR *power_supplyDir = opendir(power_supplyPath);
+   if (!power_supplyDir) {
+      return AC_ERROR;
+   }
+
+   struct dirent result;
+   struct dirent* dirEntry;
+   for (;;) {
+      int err = readdir_r((DIR *) power_supplyDir, &result, &dirEntry);
+      if (err || !dirEntry)
+         break;
+
+      char* entryName = (char *) dirEntry->d_name;
+      if (strncmp(entryName, "A", 1)) {
+         continue;
+      }
+      char onlinePath[50];
+      snprintf((char *) onlinePath, sizeof onlinePath, "%s/%s/online", power_supplyPath, entryName);
+      FILE* file = fopen(onlinePath, "r");
+      if (!file) {
+         isOn = AC_ERROR;
+      } else {
+         isOn = (fgetc(file) - '0');
+         fclose(file);
+         if (isOn == AC_PRESENT) {
+            // If any AC adapter is being used then stop
+            break;
+         }
+      }
+   }
+
+   if (power_supplyDir)
+      closedir(power_supplyDir);
+
+   return isOn;
+}
+
+ACPresence Battery_isOnAC() {
+   if (access(PROCDIR "/acpi/ac_adapter", F_OK) == 0) {
+      return procAcpiCheck();
+   } else if (access("/sys/class/power_supply", F_OK) == 0) {
+      return sysCheck();
+   } else {
+      return AC_ERROR;
+   }
+}
+
+double Battery_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;
+
+   return totalRemain * 100.0 / (double) totalFull;
+}
+
+double Battery_getSysBatData() {
+   const char *power_supplyPath = "/sys/class/power_supply/";
+   DIR *power_supplyDir = opendir(power_supplyPath);
+   if (!power_supplyDir)
+      return 0;
+
+   unsigned long int totalFull = 0;
+   unsigned long int totalRemain = 0;
+
+   struct dirent result;
+   struct dirent* dirEntry;
+   for (;;) {
+      int err = readdir_r((DIR *) power_supplyDir, &result, &dirEntry);
+      if (err || !dirEntry)
+         break;
+      char* entryName = (char *) dirEntry->d_name;
+
+      if (strncmp(entryName, "BAT", 3)) {
+         continue;
+      }
+
+      const char ueventPath[50];
+
+      snprintf((char *) ueventPath, sizeof ueventPath, "%s%s/uevent", power_supplyPath, entryName);
+
+      FILE *file;
+      if ((file = fopen(ueventPath, "r")) == NULL) {
+         closedir(power_supplyDir);
+         return 0;
+      }
+
+      if ((totalFull += parseUevent(file, "POWER_SUPPLY_ENERGY_FULL="))) {
+         totalRemain += parseUevent(file, "POWER_SUPPLY_ENERGY_NOW=");
+      } else {
+         //reset file pointer
+         if (fseek(file, 0, SEEK_SET) < 0) {
+            closedir(power_supplyDir);
+            fclose(file);
+            return 0;
+         }
+      }
+
+      //Some systems have it as CHARGE instead of ENERGY.
+      if ((totalFull += parseUevent(file, "POWER_SUPPLY_CHARGE_FULL="))) {
+         totalRemain += parseUevent(file, "POWER_SUPPLY_CHARGE_NOW=");
+      } else {
+        //reset file pointer
+         if (fseek(file, 0, SEEK_SET) < 0) {
+            closedir(power_supplyDir);
+            fclose(file);
+            return 0;
+         }
+      }
+
+      fclose(file);
+   }
+
+   const double percent = totalFull > 0 ? ((double) totalRemain * 100) / (double) totalFull : 0;
+   closedir(power_supplyDir);
+   return percent;
+}
diff --git a/linux/Battery.h b/linux/Battery.h
new file mode 100644
index 00000000..88ba2b01
--- /dev/null
+++ b/linux/Battery.h
@@ -0,0 +1,24 @@
+/* Do not edit this file. It was automatically generated. */
+
+#ifndef HEADER_Battery
+#define HEADER_Battery
+/*
+htop - linux/Battery.h
+(C) 2004-2014 Hisham H. Muhammad
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+
+Linux battery readings written by Ian P. Hands (iphands@gmail.com, ihands@redhat.com).
+*/
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+ACPresence Battery_isOnAC();
+
+double Battery_getProcBatData();
+
+double Battery_getSysBatData();
+
+#endif
diff --git a/linux/LinuxCRT.h b/linux/LinuxCRT.h
new file mode 100644
index 00000000..f8c43e4d
--- /dev/null
+++ b/linux/LinuxCRT.h
@@ -0,0 +1,17 @@
+/* Do not edit this file. It was automatically generated. */
+
+#ifndef HEADER_LinuxCRT
+#define HEADER_LinuxCRT
+/*
+htop - LinuxCRT.h
+(C) 2014 Hisham H. Muhammad
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#ifdef HAVE_EXECINFO_H
+#endif
+
+void CRT_handleSIGSEGV(int sgn);
+
+#endif
diff --git a/linux/LinuxProcess.h b/linux/LinuxProcess.h
new file mode 100644
index 00000000..97ddf90b
--- /dev/null
+++ b/linux/LinuxProcess.h
@@ -0,0 +1,39 @@
+/* Do not edit this file. It was automatically generated. */
+
+#ifndef HEADER_LinuxProcess
+#define HEADER_LinuxProcess
+/*
+htop - LinuxProcess.h
+(C) 2014 Hisham H. Muhammad
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+
+#include "IOPriority.h"
+
+typedef struct LinuxProcess_ {
+   Process super;
+   IOPriority ioPriority;
+} LinuxProcess;
+
+
+/*
+[1] Note that before kernel 2.6.26 a process that has not asked for
+an io priority formally uses "none" as scheduling class, but the
+io scheduler will treat such processes as if it were in the best
+effort class. The priority within the best effort class will  be
+dynamically  derived  from  the  cpu  nice level of the process:
+extern io_priority;
+*/
+#define LinuxProcess_effectiveIOPriority(p_) (IOPriority_class(p_->ioPriority) == IOPRIO_CLASS_NONE ? IOPriority_tuple(IOPRIO_CLASS_BE, (p_->super.nice + 20) / 5) : p_->ioPriority)
+
+IOPriority LinuxProcess_updateIOPriority(LinuxProcess* this);
+
+bool LinuxProcess_setIOPriority(LinuxProcess* this, IOPriority ioprio);
+
+void LinuxProcess_writeField(LinuxProcess* this, RichString* str, ProcessField field);
+
+long LinuxProcess_compare(const void* v1, const void* v2);
+
+#endif
diff --git a/linux/LinuxProcessList.h b/linux/LinuxProcessList.h
new file mode 100644
index 00000000..4f9482fa
--- /dev/null
+++ b/linux/LinuxProcessList.h
@@ -0,0 +1,56 @@
+/* Do not edit this file. It was automatically generated. */
+
+#ifndef HEADER_LinuxProcessList
+#define HEADER_LinuxProcessList
+/*
+htop - LinuxProcessList.h
+(C) 2014 Hisham H. Muhammad
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+
+#include "ProcessList.h"
+
+#ifndef PROCDIR
+#define PROCDIR "/proc"
+#endif
+
+#ifndef PROCSTATFILE
+#define PROCSTATFILE PROCDIR "/stat"
+#endif
+
+#ifndef PROCMEMINFOFILE
+#define PROCMEMINFOFILE PROCDIR "/meminfo"
+#endif
+
+   
+ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList);
+
+void ProcessList_delete(ProcessList* this);
+
+
+#ifdef HAVE_TASKSTATS
+
+#endif
+
+#ifdef HAVE_OPENVZ
+
+#endif
+
+#ifdef HAVE_CGROUP
+
+#endif
+
+#ifdef HAVE_VSERVER
+
+#endif
+
+#ifdef HAVE_OOM
+
+#endif
+
+void ProcessList_scan(ProcessList* this);
+
+
+#endif
diff --git a/linux/Platform.c b/linux/Platform.c
index 4607ad68..ee5abf81 100644
--- a/linux/Platform.c
+++ b/linux/Platform.c
@@ -9,6 +9,8 @@ in the source distribution for its full text.
 #include "IOPriority.h"
 #include "IOPriorityPanel.h"
 #include "LinuxProcess.h"
+#include "Battery.h"
+
 #include "Meter.h"
 #include "CPUMeter.h"
 #include "MemoryMeter.h"
@@ -16,7 +18,6 @@ in the source distribution for its full text.
 #include "TasksMeter.h"
 #include "LoadAverageMeter.h"
 #include "UptimeMeter.h"
-#include "BatteryMeter.h"
 #include "ClockMeter.h"
 #include "HostnameMeter.h"
 
@@ -25,6 +26,7 @@ in the source distribution for its full text.
 
 /*{
 #include "Action.h"
+#include "BatteryMeter.h"
 }*/
 
 static Htop_Reaction Platform_actionSetIOPriority(Panel* panel, ProcessList* pl, Header* header) {
@@ -102,3 +104,19 @@ int Platform_getMaxPid() {
    return maxPid;
 }
 
+void Platform_getBatteryLevel(double* level, ACPresence* isOnAC) {
+
+   double percent = Battery_getProcBatData();
+
+   if (percent == 0) {
+      percent = Battery_getSysBatData();
+      if (percent == 0) {
+         *level = -1;
+         *isOnAC = AC_ERROR;
+         return;
+      }
+   }
+
+   *isOnAC = Battery_isOnAC();
+   *level = percent;
+}
diff --git a/linux/Platform.h b/linux/Platform.h
new file mode 100644
index 00000000..2058419c
--- /dev/null
+++ b/linux/Platform.h
@@ -0,0 +1,27 @@
+/* Do not edit this file. It was automatically generated. */
+
+#ifndef HEADER_Platform
+#define HEADER_Platform
+/*
+htop - linux/Platform.h
+(C) 2014 Hisham H. Muhammad
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "Action.h"
+#include "BatteryMeter.h"
+
+void Platform_setBindings(Htop_Action* keys);
+
+extern MeterClass* Platform_meterTypes[];
+
+int Platform_getUptime();
+
+void Platform_getLoadAverage(double* one, double* five, double* fifteen);
+
+int Platform_getMaxPid();
+
+void Platform_getBatteryLevel(double* level, ACPresence* isOnAC);
+
+#endif
diff --git a/unsupported/Platform.c b/unsupported/Platform.c
index 764f890e..d8618919 100644
--- a/unsupported/Platform.c
+++ b/unsupported/Platform.c
@@ -11,13 +11,13 @@ in the source distribution for its full text.
 #include "SwapMeter.h"
 #include "TasksMeter.h"
 #include "LoadAverageMeter.h"
-#include "BatteryMeter.h"
 #include "ClockMeter.h"
 #include "HostnameMeter.h"
 #include "UptimeMeter.h"
 
 /*{
 #include "Action.h"
+#include "BatteryMeter.h"
 }*/
 
 void Platform_setBindings(Htop_Action* keys) {
@@ -58,3 +58,9 @@ void Platform_getLoadAverage(double* one, double* five, double* fifteen) {
 int Platform_getMaxPid() {
    return -1;
 }
+
+void Platform_getBatteryLevel(double* level, ACPresence* isOnAC) {
+   *level = -1;
+   *isOnAC = AC_ERROR;
+}
+