diff options
| -rw-r--r-- | toys/free.c | 61 | ||||
| -rw-r--r-- | toys/uptime.c | 54 |
2 files changed, 115 insertions, 0 deletions
diff --git a/toys/free.c b/toys/free.c new file mode 100644 index 00000000..529da19a --- /dev/null +++ b/toys/free.c @@ -0,0 +1,61 @@ +/* vi: set sw=4 ts=4: + * + * free.c - Display amount of free and used memory in the system. + * + * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com> + * + * Not in SUSv3. + +USE_FREE(NEWTOY(free, "gmkb", TOYFLAG_USR|TOYFLAG_BIN)) + +config FREE + bool "free" + default y + help + usage: free [-bkmg] + + Display the total, free and used amount of physical memory and + swap space. + -bkmg Output in bytes (default), KB, MB or GB +*/ + +#include "toys.h" +#include <sys/sysinfo.h> + + +static unsigned long long convert(unsigned long d, unsigned int iscale, + unsigned int oscale) +{ + return ((unsigned long long)d*iscale)>>oscale; +} + +void free_main(void) +{ + struct sysinfo info; + unsigned int iscale = 1; + unsigned int oscale = 0; + + sysinfo(&info); + if (info.mem_unit) iscale = info.mem_unit; + if (toys.optflags & 1) oscale = 0; + if (toys.optflags & 2) oscale = 10; + if (toys.optflags & 4) oscale = 20; + if (toys.optflags & 8) oscale = 30; + + printf(" total used free shared buffers\n"); + printf("Mem: %12llu%12llu%12llu%12llu%12llu\n", + convert(info.totalram, iscale, oscale), + convert(info.totalram-info.freeram, iscale, oscale), + convert(info.freeram, iscale, oscale), + convert(info.sharedram, iscale, oscale), + convert(info.bufferram, iscale, oscale)); + + printf("-/+ buffers/cache: %12llu%12llu\n", + convert(info.totalram - info.freeram - info.bufferram, iscale, oscale), + convert(info.freeram + info.bufferram, iscale, oscale)); + + printf("Swap: %12llu%12llu%12llu\n", + convert(info.totalswap, iscale, oscale), + convert(info.totalswap - info.freeswap, iscale, oscale), + convert(info.freeswap, iscale, oscale)); +} diff --git a/toys/uptime.c b/toys/uptime.c new file mode 100644 index 00000000..046b9a29 --- /dev/null +++ b/toys/uptime.c @@ -0,0 +1,54 @@ +/* vi: set sw=4 ts=4: + * + * uptime.c - Tell how long the system has been running. + * + * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com> + * + * Not in SUSv3. + +USE_UPTIME(NEWTOY(uptime, NULL, TOYFLAG_USR|TOYFLAG_BIN)) + +config UPTIME + bool "uptime" + default y + help + usage: uptime + + Tell how long the system has been running and the system load + averages for the past 1, 5 and 15 minutes. +*/ + +#include "toys.h" +#include <sys/sysinfo.h> +#include <time.h> + +void uptime_main(void) +{ + struct sysinfo info; + time_t tmptime; + struct tm * now; + unsigned int days, hours, minutes; + + // Obtain the data we need. + sysinfo(&info); + time(&tmptime); + now = localtime(&tmptime); + + // Time + printf(" %02d:%02d:%02d up ", now->tm_hour, now->tm_min, now->tm_sec); + // Uptime + info.uptime /= 60; + minutes = info.uptime%60; + info.uptime /= 60; + hours = info.uptime%24; + days = info.uptime/24; + if (days) printf("%d day%s, ", days, (days!=1)?"s":""); + if (hours) + printf("%2d:%02d, ", hours, minutes); + else + printf("%d min, ", minutes); + + printf(" load average: %.02f %.02f %.02f\n", info.loads[0]/65536.0, + info.loads[1]/65536.0, info.loads[2]/65536.0); + +} |