diff options
Diffstat (limited to 'toys/other')
| -rw-r--r-- | toys/other/free.c | 60 |
1 files changed, 25 insertions, 35 deletions
diff --git a/toys/other/free.c b/toys/other/free.c index 3281d79b..cf4abc52 100644 --- a/toys/other/free.c +++ b/toys/other/free.c @@ -2,56 +2,46 @@ * * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com> -USE_FREE(NEWTOY(free, "gmkb", TOYFLAG_USR|TOYFLAG_BIN)) +USE_FREE(NEWTOY(free, "tgmkb[!tgmkb]", TOYFLAG_USR|TOYFLAG_BIN)) config FREE bool "free" default y help - usage: free [-bkmg] + usage: free [-bkmgt] - Display the total, free and used amount of physical memory and - swap space. + Display the total, free and used amount of physical memory and swap space. - -bkmg Output in bytes (default), KB, MB or GB + -bkmgt Output units (default is bytes) */ #define FOR_free #include "toys.h" -static unsigned long long convert(unsigned long d, unsigned int iscale, - unsigned int oscale) +GLOBALS( + unsigned bits; + unsigned long long units; +) + +static unsigned long long convert(unsigned long d) { - return ((unsigned long long)d*iscale)>>oscale; + return (d*TT.units)>>TT.bits; } 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 & FLAG_b) oscale = 0; - if (toys.optflags & FLAG_k) oscale = 10; - if (toys.optflags & FLAG_m) oscale = 20; - if (toys.optflags & FLAG_g) oscale = 30; - - xprintf("\t\ttotal used free shared buffers\n"); - xprintf("Mem:%17llu%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)); - - xprintf("-/+ buffers/cache:%15llu%12llu\n", - convert(info.totalram - info.freeram - info.bufferram, iscale, oscale), - convert(info.freeram + info.bufferram, iscale, oscale)); - - xprintf("Swap:%16llu%12llu%12llu\n", - convert(info.totalswap, iscale, oscale), - convert(info.totalswap - info.freeswap, iscale, oscale), - convert(info.freeswap, iscale, oscale)); + struct sysinfo in; + + sysinfo(&in); + TT.units = in.mem_unit ? in.mem_unit : 1; + for (TT.bits = 0; toys.optflags && !(toys.optflags&(1<<TT.bits)); TT.bits++); + TT.bits *= 10; + + xprintf("\t\ttotal used free shared buffers\n" + "Mem:%17llu%12llu%12llu%12llu%12llu\n-/+ buffers/cache:%15llu%12llu\n" + "Swap:%16llu%12llu%12llu\n", convert(in.totalram), + convert(in.totalram-in.freeram), convert(in.freeram), convert(in.sharedram), + convert(in.bufferram), convert(in.totalram - in.freeram - in.bufferram), + convert(in.freeram + in.bufferram), convert(in.totalswap), + convert(in.totalswap - in.freeswap), convert(in.freeswap)); } |