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author | Rich Felker <dalias@aerifal.cx> | 2011-02-12 00:22:29 -0500 |
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committer | Rich Felker <dalias@aerifal.cx> | 2011-02-12 00:22:29 -0500 |
commit | 0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch) | |
tree | 6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/misc/getrusage.c | |
download | musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.gz musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.xz musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.zip |
initial check-in, version 0.5.0 v0.5.0
Diffstat (limited to 'src/misc/getrusage.c')
-rw-r--r-- | src/misc/getrusage.c | 20 |
1 files changed, 20 insertions, 0 deletions
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 <sys/resource.h> +#include <string.h> +#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; +} |