From 0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Sat, 12 Feb 2011 00:22:29 -0500 Subject: initial check-in, version 0.5.0 --- src/misc/getrusage.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 src/misc/getrusage.c (limited to 'src/misc/getrusage.c') diff --git a/src/misc/getrusage.c b/src/misc/getrusage.c new file mode 100644 index 00000000..1b8850f9 --- /dev/null +++ b/src/misc/getrusage.c @@ -0,0 +1,20 @@ +#include +#include +#include "syscall.h" + +/* this is a huge hack to make up for the kernel's stupid 32bit time_t + * without having to recopy the whole rusage structure ourselves.. */ + +int getrusage(int who, struct rusage *ru) +{ + struct { long tv_sec, tv_usec; } ktv[2]; + char *fakeaddr = ((char *)ru + sizeof(struct timeval [2]) - sizeof ktv); + if (syscall2(__NR_getrusage, who, (long)fakeaddr) < 0) + return -1; + memcpy(ktv, fakeaddr, sizeof ktv); + ru->ru_utime.tv_sec = ktv[0].tv_sec; + ru->ru_utime.tv_usec = ktv[0].tv_usec; + ru->ru_stime.tv_sec = ktv[1].tv_sec; + ru->ru_stime.tv_usec = ktv[1].tv_usec; + return 0; +} -- cgit v1.2.1