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Move OS-specific code to slurp_battery_info.

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This commit is contained in:
Tommie Gannert 2016-08-01 01:49:12 +01:00
parent a537d1503a
commit 77f097dcca
1 changed files with 72 additions and 63 deletions
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135
src/print_battery_info.c
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@ -49,13 +49,7 @@ static int seconds_remaining_from_rate(charging_status_t status, float full_desi
return 0; return 0;
} }
/* static bool slurp_battery_info(struct battery_info *batt_info, yajl_gen json_gen, char *buffer, int number, const char *path, const char *format_down, bool last_full_capacity) {
* Get battery information from /sys. Note that it uses the design capacity to
* calculate the percentage, not the last full capacity, so you can see how
* worn off your battery is.
*
*/
void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char *path, const char *format, const char *format_down, const char *status_chr, const char *status_bat, const char *status_unk, const char *status_full, int low_threshold, char *threshold_type, bool last_full_capacity, bool integer_battery_capacity, bool hide_seconds) {
char buf[1024]; char buf[1024];
const char *walk, *last; const char *walk, *last;
char *outwalk = buffer; char *outwalk = buffer;
@ -63,21 +57,15 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
int full_design = -1, int full_design = -1,
remaining = -1, remaining = -1,
voltage = -1; voltage = -1;
struct battery_info batt_info = {
.present_rate = -1,
.seconds_remaining = -1,
.percentage_remaining = -1,
.status = CS_DISCHARGING,
};
static char batpath[512]; #if defined(LINUX)
char batpath[512];
sprintf(batpath, path, number); sprintf(batpath, path, number);
INSTANCE(batpath); INSTANCE(batpath);
#if defined(LINUX)
if (!slurp(batpath, buf, sizeof(buf))) { if (!slurp(batpath, buf, sizeof(buf))) {
OUTPUT_FULL_TEXT(format_down); OUTPUT_FULL_TEXT(format_down);
return; return false;
} }
for (walk = buf, last = buf; (walk - buf) < 1024; walk++) { for (walk = buf, last = buf; (walk - buf) < 1024; walk++) {
@ -96,7 +84,7 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
watt_as_unit = false; watt_as_unit = false;
remaining = atoi(walk + 1); remaining = atoi(walk + 1);
} else if (BEGINS_WITH(last, "POWER_SUPPLY_CURRENT_NOW")) } else if (BEGINS_WITH(last, "POWER_SUPPLY_CURRENT_NOW"))
batt_info.present_rate = abs(atoi(walk + 1)); batt_info->present_rate = abs(atoi(walk + 1));
else if (BEGINS_WITH(last, "POWER_SUPPLY_VOLTAGE_NOW")) else if (BEGINS_WITH(last, "POWER_SUPPLY_VOLTAGE_NOW"))
voltage = abs(atoi(walk + 1)); voltage = abs(atoi(walk + 1));
/* on some systems POWER_SUPPLY_POWER_NOW does not exist, but actually /* on some systems POWER_SUPPLY_POWER_NOW does not exist, but actually
@ -104,15 +92,15 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
* unit instead of μAh. We will calculate it as we need it * unit instead of μAh. We will calculate it as we need it
* later. */ * later. */
else if (BEGINS_WITH(last, "POWER_SUPPLY_POWER_NOW")) else if (BEGINS_WITH(last, "POWER_SUPPLY_POWER_NOW"))
batt_info.present_rate = abs(atoi(walk + 1)); batt_info->present_rate = abs(atoi(walk + 1));
else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Charging")) else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Charging"))
batt_info.status = CS_CHARGING; batt_info->status = CS_CHARGING;
else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Full")) else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Full"))
batt_info.status = CS_FULL; batt_info->status = CS_FULL;
else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Discharging")) else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Discharging"))
batt_info.status = CS_DISCHARGING; batt_info->status = CS_DISCHARGING;
else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=")) else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS="))
batt_info.status = CS_UNKNOWN; batt_info->status = CS_UNKNOWN;
else { else {
/* The only thing left is the full capacity */ /* The only thing left is the full capacity */
if (last_full_capacity) { if (last_full_capacity) {
@ -134,7 +122,7 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
* given in mWh, the charge in mAh. So calculate every value given in * given in mWh, the charge in mAh. So calculate every value given in
* ampere to watt */ * ampere to watt */
if (!watt_as_unit) { if (!watt_as_unit) {
batt_info.present_rate = (((float)voltage / 1000.0) * ((float)batt_info.present_rate / 1000.0)); batt_info->present_rate = (((float)voltage / 1000.0) * ((float)batt_info->present_rate / 1000.0));
if (voltage != -1) { if (voltage != -1) {
remaining = (((float)voltage / 1000.0) * ((float)remaining / 1000.0)); remaining = (((float)voltage / 1000.0) * ((float)remaining / 1000.0));
@ -144,21 +132,21 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
if ((full_design == -1) || (remaining == -1)) { if ((full_design == -1) || (remaining == -1)) {
OUTPUT_FULL_TEXT(format_down); OUTPUT_FULL_TEXT(format_down);
return; return false;
} }
batt_info.percentage_remaining = (((float)remaining / (float)full_design) * 100); batt_info->percentage_remaining = (((float)remaining / (float)full_design) * 100);
/* Some batteries report POWER_SUPPLY_CHARGE_NOW=<full_design> when fully /* Some batteries report POWER_SUPPLY_CHARGE_NOW=<full_design> when fully
* charged, even though that’s plainly wrong. For people who chose to see * charged, even though that’s plainly wrong. For people who chose to see
* the percentage calculated based on the last full capacity, we clamp the * the percentage calculated based on the last full capacity, we clamp the
* value to 100%, as that makes more sense. * value to 100%, as that makes more sense.
* See http://bugs.debian.org/785398 */ * See http://bugs.debian.org/785398 */
if (last_full_capacity && batt_info.percentage_remaining > 100) { if (last_full_capacity && batt_info->percentage_remaining > 100) {
batt_info.percentage_remaining = 100; batt_info->percentage_remaining = 100;
} }
if (batt_info.present_rate > 0 && batt_info.status != CS_FULL) { if (batt_info->present_rate > 0 && batt_info->status != CS_FULL) {
batt_info.seconds_remaining = seconds_remaining_from_rate(batt_info.status, full_design, remaining, batt_info.present_rate); batt_info->seconds_remaining = seconds_remaining_from_rate(batt_info->status, full_design, remaining, batt_info->present_rate);
} }
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
int state; int state;
@ -167,30 +155,28 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
if (sysctlbyname(BATT_LIFE, &sysctl_rslt, &sysctl_size, NULL, 0) != 0) { if (sysctlbyname(BATT_LIFE, &sysctl_rslt, &sysctl_size, NULL, 0) != 0) {
OUTPUT_FULL_TEXT(format_down); OUTPUT_FULL_TEXT(format_down);
return; return false;
} }
integer_battery_capacity = true; batt_info->percentage_remaining = sysctl_rslt;
batt_info.percentage_remaining = sysctl_rslt;
if (sysctlbyname(BATT_TIME, &sysctl_rslt, &sysctl_size, NULL, 0) != 0) { if (sysctlbyname(BATT_TIME, &sysctl_rslt, &sysctl_size, NULL, 0) != 0) {
OUTPUT_FULL_TEXT(format_down); OUTPUT_FULL_TEXT(format_down);
return; return false;
} }
hide_seconds = true; batt_info->seconds_remaining = sysctl_rslt * 60;
batt_info.seconds_remaining = sysctl_rslt * 60;
if (sysctlbyname(BATT_STATE, &sysctl_rslt, &sysctl_size, NULL, 0) != 0) { if (sysctlbyname(BATT_STATE, &sysctl_rslt, &sysctl_size, NULL, 0) != 0) {
OUTPUT_FULL_TEXT(format_down); OUTPUT_FULL_TEXT(format_down);
return; return false;
} }
state = sysctl_rslt; state = sysctl_rslt;
if (state == 0 && batt_info.percentage_remaining == 100) if (state == 0 && batt_info->percentage_remaining == 100)
batt_info.status = CS_FULL; batt_info->status = CS_FULL;
else if ((state & ACPI_BATT_STAT_CHARGING) && batt_info.percentage_remaining < 100) else if ((state & ACPI_BATT_STAT_CHARGING) && batt_info->percentage_remaining < 100)
batt_info.status = CS_CHARGING; batt_info->status = CS_CHARGING;
else else
batt_info.status = CS_DISCHARGING; batt_info->status = CS_DISCHARGING;
full_design = sysctl_rslt; full_design = sysctl_rslt;
#elif defined(__OpenBSD__) #elif defined(__OpenBSD__)
@ -205,7 +191,7 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
apm_fd = open("/dev/apm", O_RDONLY); apm_fd = open("/dev/apm", O_RDONLY);
if (apm_fd < 0) { if (apm_fd < 0) {
OUTPUT_FULL_TEXT("can't open /dev/apm"); OUTPUT_FULL_TEXT("can't open /dev/apm");
return; return false;
} }
if (ioctl(apm_fd, APM_IOC_GETPOWER, &apm_info) < 0) if (ioctl(apm_fd, APM_IOC_GETPOWER, &apm_info) < 0)
OUTPUT_FULL_TEXT("can't read power info"); OUTPUT_FULL_TEXT("can't read power info");
@ -216,28 +202,27 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
if ((apm_info.battery_state == APM_BATTERY_ABSENT) || if ((apm_info.battery_state == APM_BATTERY_ABSENT) ||
(apm_info.battery_state == APM_BATT_UNKNOWN)) { (apm_info.battery_state == APM_BATT_UNKNOWN)) {
OUTPUT_FULL_TEXT(format_down); OUTPUT_FULL_TEXT(format_down);
return; return false;
} }
switch (apm_info.ac_state) { switch (apm_info.ac_state) {
case APM_AC_OFF: case APM_AC_OFF:
batt_info.status = CS_DISCHARGING; batt_info->status = CS_DISCHARGING;
break; break;
case APM_AC_ON: case APM_AC_ON:
batt_info.status = CS_CHARGING; batt_info->status = CS_CHARGING;
break; break;
default: default:
/* If we don't know what's going on, just assume we're discharging. */ /* If we don't know what's going on, just assume we're discharging. */
batt_info.status = CS_DISCHARGING; batt_info->status = CS_DISCHARGING;
break; break;
} }
integer_battery_capacity = true; batt_info->percentage_remaining = apm_info.battery_life;
batt_info.percentage_remaining = apm_info.battery_life;
/* Can't give a meaningful value for remaining minutes if we're charging. */ /* Can't give a meaningful value for remaining minutes if we're charging. */
if (batt_info.status != CS_CHARGING) { if (batt_info->status != CS_CHARGING) {
batt_info.seconds_remaining = apm_info.minutes_left * 60; batt_info->seconds_remaining = apm_info.minutes_left * 60;
} }
#elif defined(__NetBSD__) #elif defined(__NetBSD__)
/* /*
@ -259,19 +244,19 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
fd = open("/dev/sysmon", O_RDONLY); fd = open("/dev/sysmon", O_RDONLY);
if (fd < 0) { if (fd < 0) {
OUTPUT_FULL_TEXT("can't open /dev/sysmon"); OUTPUT_FULL_TEXT("can't open /dev/sysmon");
return; return false;
} }
rval = prop_dictionary_recv_ioctl(fd, ENVSYS_GETDICTIONARY, &dict); rval = prop_dictionary_recv_ioctl(fd, ENVSYS_GETDICTIONARY, &dict);
if (rval == -1) { if (rval == -1) {
close(fd); close(fd);
return; return false;
} }
if (prop_dictionary_count(dict) == 0) { if (prop_dictionary_count(dict) == 0) {
prop_object_release(dict); prop_object_release(dict);
close(fd); close(fd);
return; return false;
} }
iter = prop_dictionary_iterator(dict); iter = prop_dictionary_iterator(dict);
@ -296,7 +281,7 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
prop_object_iterator_release(iter); prop_object_iterator_release(iter);
prop_object_release(dict); prop_object_release(dict);
close(fd); close(fd);
return; return false;
} }
iter2 = prop_array_iterator(array); iter2 = prop_array_iterator(array);
@ -304,7 +289,7 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
prop_object_iterator_release(iter); prop_object_iterator_release(iter);
prop_object_release(dict); prop_object_release(dict);
close(fd); close(fd);
return; return false;
} }
/* iterate over array of dicts specific to target battery */ /* iterate over array of dicts specific to target battery */
@ -319,9 +304,9 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
obj3 = prop_dictionary_get(obj2, "cur-value"); obj3 = prop_dictionary_get(obj2, "cur-value");
if (prop_number_integer_value(obj3)) if (prop_number_integer_value(obj3))
batt_info.status = CS_CHARGING; batt_info->status = CS_CHARGING;
else else
batt_info.status = CS_DISCHARGING; batt_info->status = CS_DISCHARGING;
continue; continue;
} }
@ -357,7 +342,7 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
prop_string_cstring_nocopy(obj3), prop_string_cstring_nocopy(obj3),
14) == 0) { 14) == 0) {
obj3 = prop_dictionary_get(obj2, "cur-value"); obj3 = prop_dictionary_get(obj2, "cur-value");
batt_info.present_rate = prop_number_integer_value(obj3); batt_info->present_rate = prop_number_integer_value(obj3);
continue; continue;
} }
@ -390,33 +375,57 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
if (!is_found) { if (!is_found) {
OUTPUT_FULL_TEXT(format_down); OUTPUT_FULL_TEXT(format_down);
return; return false;
} }
if (last_full_capacity) if (last_full_capacity)
full_design = last_full_cap; full_design = last_full_cap;
if (!watt_as_unit) { if (!watt_as_unit) {
batt_info.present_rate = (((float)voltage / 1000.0) * ((float)batt_info.present_rate / 1000.0)); batt_info->present_rate = (((float)voltage / 1000.0) * ((float)batt_info->present_rate / 1000.0));
remaining = (((float)voltage / 1000.0) * ((float)remaining / 1000.0)); remaining = (((float)voltage / 1000.0) * ((float)remaining / 1000.0));
full_design = (((float)voltage / 1000.0) * ((float)full_design / 1000.0)); full_design = (((float)voltage / 1000.0) * ((float)full_design / 1000.0));
} }
batt_info.percentage_remaining = batt_info->percentage_remaining =
(((float)remaining / (float)full_design) * 100); (((float)remaining / (float)full_design) * 100);
if (is_full) if (is_full)
batt_info.status = CS_FULL; batt_info->status = CS_FULL;
/* /*
* The envsys(4) ACPI routines do not appear to provide a 'time * The envsys(4) ACPI routines do not appear to provide a 'time
* remaining' figure, so we must deduce it. * remaining' figure, so we must deduce it.
*/ */
batt_info.seconds_remaining = seconds_remaining_from_rate(batt_info.status, full_design, remaining, batt_info.present_rate); batt_info->seconds_remaining = seconds_remaining_from_rate(batt_info->status, full_design, remaining, batt_info->present_rate);
#endif #endif
return true;
}
void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char *path, const char *format, const char *format_down, const char *status_chr, const char *status_bat, const char *status_unk, const char *status_full, int low_threshold, char *threshold_type, bool last_full_capacity, bool integer_battery_capacity, bool hide_seconds) {
const char *walk;
char *outwalk = buffer;
struct battery_info batt_info = {
.present_rate = -1,
.seconds_remaining = -1,
.percentage_remaining = -1,
.status = CS_DISCHARGING,
};
bool colorful_output = false; bool colorful_output = false;
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) || defined(__OpenBSD__)
/* These OSes report battery stats in whole percent. */
integer_battery_capacity = true;
#endif
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
/* These OSes report battery time in minutes. */
hide_seconds = true;
#endif
if (!slurp_battery_info(&batt_info, json_gen, buffer, number, path, format_down, last_full_capacity))
return;
if (batt_info.status == CS_DISCHARGING && low_threshold > 0) { if (batt_info.status == CS_DISCHARGING && low_threshold > 0) {
if (batt_info.percentage_remaining >= 0 && strcasecmp(threshold_type, "percentage") == 0 && batt_info.percentage_remaining < low_threshold) { if (batt_info.percentage_remaining >= 0 && strcasecmp(threshold_type, "percentage") == 0 && batt_info.percentage_remaining < low_threshold) {
START_COLOR("color_bad"); START_COLOR("color_bad");