ps: use separate get_uptime() and make it work on non-linux too
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(log yok)
| @@ -69,6 +69,31 @@ | |
| /* Absolute maximum on output line length */ | |
| enum { MAX_WIDTH = 2*1024 }; | |
| + | #if ENABLE_FEATURE_PS_TIME || ENABLE_FEATURE_PS_LONG |
| + | static long get_uptime(void) |
| + | { |
| + | #ifdef __linux__ |
| + | struct sysinfo info; |
| + | if (sysinfo(&info) < 0) |
| + | return 0; |
| + | return info.uptime; |
| + | #elif 1 |
| + | char buf[64]; |
| + | long uptime; |
| + | if (open_read_close("/proc/uptime", buf, sizeof(buf)) <= 0) |
| + | bb_perror_msg_and_die("can't read %s", "/proc/uptime"); |
| + | buf[sizeof(buf)-1] = '\0'; |
| + | sscanf(buf, "%l", &uptime); |
| + | return uptime; |
| + | #else |
| + | struct timespec ts; |
| + | if (clock_gettime(CLOCK_MONOTONIC, &ts) < 0) |
| + | return 0; |
| + | return ts.tv_sec; |
| + | #endif |
| + | } |
| + | #endif |
| + | |
| #if ENABLE_DESKTOP | |
| #include <sys/times.h> /* for times() */ | |
| @@ -197,8 +222,6 @@ static inline unsigned get_HZ_by_waiting(void) | |
| static unsigned get_kernel_HZ(void) | |
| { | |
| - | //char buf[64]; |
| - | struct sysinfo info; |
| if (kernel_HZ) | |
| return kernel_HZ; | |
| @@ -208,12 +231,7 @@ static unsigned get_kernel_HZ(void) | |
| if (kernel_HZ == (unsigned)-1) | |
| kernel_HZ = get_HZ_by_waiting(); | |
| - | //if (open_read_close("/proc/uptime", buf, sizeof(buf)) <= 0) |
| - | // bb_perror_msg_and_die("can't read %s", "/proc/uptime"); |
| - | //buf[sizeof(buf)-1] = '\0'; |
| - | ///sscanf(buf, "%llu", &seconds_since_boot); |
| - | sysinfo(&info); |
| - | seconds_since_boot = info.uptime; |
| + | seconds_since_boot = get_uptime(); |
| return kernel_HZ; | |
| } | |
| @@ -635,7 +653,7 @@ int ps_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) | |
| }; | |
| #if ENABLE_FEATURE_PS_LONG | |
| time_t now = now; | |
| - | struct sysinfo info; |
| + | long uptime; |
| #endif | |
| int opts = 0; | |
| /* If we support any options, parse argv */ | |
| @@ -695,7 +713,7 @@ int ps_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) | |
| puts("S UID PID PPID VSZ RSS TTY STIME TIME CMD"); | |
| #if ENABLE_FEATURE_PS_LONG | |
| now = time(NULL); | |
| - | sysinfo(&info); |
| + | uptime = get_uptime(); |
| #endif | |
| } | |
| else { | |
| @@ -727,7 +745,7 @@ int ps_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) | |
| char tty[2 * sizeof(int)*3 + 2]; | |
| char *endp; | |
| unsigned sut = (p->stime + p->utime) / 100; | |
| - | unsigned elapsed = info.uptime - (p->start_time / 100); |
| + | unsigned elapsed = uptime - (p->start_time / 100); |
| time_t start = now - elapsed; | |
| struct tm *tm = localtime(&start); | |