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@@ -1,6 +1,7 @@ |
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/* See LICENSE file for copyright and license details. */ |
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#include <dirent.h> |
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#include <err.h> |
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#include <errno.h> |
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#include <fcntl.h> |
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#include <ifaddrs.h> |
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#include <limits.h> |
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@@ -93,52 +94,50 @@ bprintf(const char *fmt, ...) |
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return buf; |
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} |
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static const char * |
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battery_perc(const char *bat) |
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int |
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pscanf(const char *path, const char *fmt, ...) |
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{ |
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int n, perc; |
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char path[PATH_MAX]; |
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FILE *fp; |
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va_list ap; |
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int n; |
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snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/capacity"); |
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fp = fopen(path, "r"); |
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if (fp == NULL) { |
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warn("Failed to open file %s", path); |
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return unknown_str; |
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if (!(fp = fopen(path, "r"))) { |
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warn("fopen %s: %s\n", path, strerror(errno)); |
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return -1; |
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} |
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n = fscanf(fp, "%i", &perc); |
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va_start(ap, fmt); |
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n = vfscanf(fp, fmt, ap); |
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va_end(ap); |
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fclose(fp); |
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if (n != 1) |
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return unknown_str; |
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return bprintf("%d", perc); |
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return (n == EOF) ? -1 : n; |
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} |
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static const char * |
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battery_perc(const char *bat) |
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{ |
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int perc; |
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char path[PATH_MAX]; |
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snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/capacity"); |
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return (pscanf(path, "%i", &perc) == 1) ? |
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bprintf("%d", perc) : unknown_str; |
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} |
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static const char * |
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battery_power(const char *bat) |
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{ |
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int watts; |
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char path[PATH_MAX]; |
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FILE *fp; |
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int n, watts; |
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snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/power_now"); |
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fp = fopen(path, "r"); |
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if (fp == NULL) { |
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warn("Failed to open file %s", path); |
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return unknown_str; |
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} |
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n = fscanf(fp, "%i", &watts); |
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fclose(fp); |
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if (n != 1) |
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return unknown_str; |
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return bprintf("%d", (watts + 500000) / 1000000); |
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return (pscanf(path, "%i", &watts) == 1) ? |
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bprintf("%d", (watts + 500000) / 1000000) : unknown_str; |
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} |
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static const char * |
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battery_state(const char *bat) |
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{ |
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FILE *fp; |
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struct { |
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char *state; |
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char *symbol; |
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@@ -149,81 +148,55 @@ battery_state(const char *bat) |
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{ "Unknown", "/" }, |
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}; |
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size_t i; |
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int n; |
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char path[PATH_MAX], state[12]; |
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snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/", bat, "/status"); |
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fp = fopen(path, "r"); |
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if (fp == NULL) { |
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warn("Failed to open file %s", path); |
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if (pscanf(path, "%12s", state) != 1) { |
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return unknown_str; |
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} |
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n = fscanf(fp, "%12s", state); |
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fclose(fp); |
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if (n != 1) |
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return unknown_str; |
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for (i = 0; i < LEN(map); i++) { |
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if (!strcmp(map[i].state, state)) { |
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break; |
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} |
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} |
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return (i == LEN(map)) ? "?" : map[i].symbol; |
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} |
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static const char * |
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cpu_freq(void) |
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{ |
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int n, freq; |
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FILE *fp; |
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int freq; |
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fp = fopen("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq", "r"); |
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if (fp == NULL) { |
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warn("Failed to open file /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq"); |
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return unknown_str; |
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} |
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n = fscanf(fp, "%i", &freq); |
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fclose(fp); |
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if (n != 1) |
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return unknown_str; |
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return bprintf("%d", (freq + 500) / 1000); |
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return (pscanf("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq", |
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"%i", &freq) != 1) ? |
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bprintf("%d", (freq + 500) / 1000) : unknown_str; |
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} |
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static const char * |
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cpu_perc(void) |
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{ |
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struct timespec delay; |
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int n, perc; |
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int perc; |
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long double a[4], b[4]; |
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FILE *fp; |
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fp = fopen("/proc/stat", "r"); |
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if (fp == NULL) { |
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warn("Failed to open file /proc/stat"); |
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if (pscanf("/proc/stat", "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], |
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&a[3]) != 4) { |
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return unknown_str; |
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} |
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n = fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]); |
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fclose(fp); |
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if (n != 4) |
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return unknown_str; |
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delay.tv_sec = (interval / 2) / 1000; |
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delay.tv_nsec = ((interval / 2) % 1000) * 1000000; |
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nanosleep(&delay, NULL); |
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fp = fopen("/proc/stat", "r"); |
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if (fp == NULL) { |
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warn("Failed to open file /proc/stat"); |
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if (pscanf("/proc/stat", "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], |
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&b[3]) != 4) { |
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return unknown_str; |
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} |
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n = fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]); |
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fclose(fp); |
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if (n != 4) |
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return unknown_str; |
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perc = 100 * ((b[0]+b[1]+b[2]) - (a[0]+a[1]+a[2])) / ((b[0]+b[1]+b[2]+b[3]) - (a[0]+a[1]+a[2]+a[3])); |
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perc = 100 * ((b[0]+b[1]+b[2]) - (a[0]+a[1]+a[2])) / |
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((b[0]+b[1]+b[2]+b[3]) - (a[0]+a[1]+a[2]+a[3])); |
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return bprintf("%d", perc); |
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} |
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@@ -297,20 +270,10 @@ disk_used(const char *mnt) |
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static const char * |
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entropy(void) |
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{ |
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int n, num; |
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FILE *fp; |
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int num; |
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fp= fopen("/proc/sys/kernel/random/entropy_avail", "r"); |
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if (fp == NULL) { |
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warn("Failed to open file /proc/sys/kernel/random/entropy_avail"); |
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return unknown_str; |
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} |
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n = fscanf(fp, "%d", &num); |
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fclose(fp); |
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if (n != 1) |
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return unknown_str; |
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return bprintf("%d", num); |
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return (pscanf("/proc/sys/kernel/random/entropy_avail", "%d", &num) == 1) ? |
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bprintf("%d", num) : unknown_str; |
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} |
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static const char * |
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@@ -438,92 +401,48 @@ static const char * |
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ram_free(void) |
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{ |
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long free; |
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FILE *fp; |
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int n; |
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fp = fopen("/proc/meminfo", "r"); |
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if (fp == NULL) { |
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warn("Failed to open file /proc/meminfo"); |
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return unknown_str; |
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} |
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n = fscanf(fp, "MemFree: %ld kB\n", &free); |
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fclose(fp); |
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if (n != 1) |
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return unknown_str; |
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return bprintf("%f", (float)free / 1024 / 1024); |
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return (pscanf("/proc/meminfo", "MemFree: %ld kB\n", &free) == 1) ? |
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bprintf("%f", (float)free / 1024 / 1024) : unknown_str; |
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} |
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static const char * |
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ram_perc(void) |
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{ |
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long total, free, buffers, cached; |
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FILE *fp; |
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fp = fopen("/proc/meminfo", "r"); |
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if (fp == NULL) { |
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warn("Failed to open file /proc/meminfo"); |
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return unknown_str; |
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} |
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if (fscanf(fp, "MemTotal: %ld kB\n", &total) != 1 || |
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fscanf(fp, "MemFree: %ld kB\n", &free) != 1 || |
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fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n", |
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&buffers, &buffers) != 2 || |
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fscanf(fp, "Cached: %ld kB\n", &cached) != 1) |
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goto scanerr; |
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fclose(fp); |
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return bprintf("%d", 100 * ((total - free) - (buffers + cached)) / total); |
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scanerr: |
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fclose(fp); |
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return unknown_str; |
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return (pscanf("/proc/meminfo", |
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"MemTotal: %ld kB\n" |
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"MemFree: %ld kB\n" |
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"MemAvailable: %ld kB\nBuffers: %ld kB\n" |
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"Cached: %ld kB\n", |
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&total, &free, &buffers, &buffers, &cached) == 5) ? |
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bprintf("%d", 100 * ((total - free) - (buffers + cached)) / total) : |
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unknown_str; |
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} |
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static const char * |
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ram_total(void) |
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{ |
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long total; |
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FILE *fp; |
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int n; |
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fp = fopen("/proc/meminfo", "r"); |
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if (fp == NULL) { |
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warn("Failed to open file /proc/meminfo"); |
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return unknown_str; |
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} |
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n = fscanf(fp, "MemTotal: %ld kB\n", &total); |
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fclose(fp); |
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if (n != 1) |
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return unknown_str; |
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return bprintf("%f", (float)total / 1024 / 1024); |
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return (pscanf("/proc/meminfo", "MemTotal: %ld kB\n", &total) == 1) ? |
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bprintf("%f", (float)total / 1024 / 1024) : unknown_str; |
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} |
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static const char * |
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ram_used(void) |
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{ |
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long free, total, buffers, cached; |
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FILE *fp; |
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fp = fopen("/proc/meminfo", "r"); |
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if (fp == NULL) { |
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warn("Failed to open file /proc/meminfo"); |
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return unknown_str; |
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} |
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if (fscanf(fp, "MemTotal: %ld kB\n", &total) != 1 || |
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fscanf(fp, "MemFree: %ld kB\n", &free) != 1 || |
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fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n", |
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&buffers, &buffers) != 2 || |
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fscanf(fp, "Cached: %ld kB\n", &cached) != 1) |
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goto scanerr; |
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fclose(fp); |
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return bprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024); |
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long total, free, buffers, cached; |
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scanerr: |
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fclose(fp); |
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return unknown_str; |
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return (pscanf("/proc/meminfo", |
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"MemTotal: %ld kB\n" |
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"MemFree: %ld kB\n" |
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"MemAvailable: %ld kB\nBuffers: %ld kB\n" |
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"Cached: %ld kB\n", |
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&total, &free, &buffers, &buffers, &cached) == 5) ? |
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bprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024) : |
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unknown_str; |
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} |
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static const char * |
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@@ -680,20 +599,10 @@ swap_used(void) |
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static const char * |
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temp(const char *file) |
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{ |
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int n, temp; |
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FILE *fp; |
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fp = fopen(file, "r"); |
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if (fp == NULL) { |
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warn("Failed to open file %s", file); |
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return unknown_str; |
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} |
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n = fscanf(fp, "%d", &temp); |
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fclose(fp); |
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if (n != 1) |
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return unknown_str; |
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int temp; |
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return bprintf("%d", temp / 1000); |
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return (pscanf(file, "%d", &temp) == 1) ? |
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bprintf("%d", temp / 1000) : unknown_str; |
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} |
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static const char * |
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