48f20655ac
- new call names, message field aliases, call tables; - initialize all ABI request messages to zero; - format callnr.h in the same way as com.h; - remove param.h namespace pollution in servers; - make brk(2) go to VM directly, rather than through PM; - remove obsolete WAIT and BRK calls from PM; - remove obsolete UTIME call from VFS; - clean up path copying routine in VFS; - move system calls from libminlib to libc; - correct some errno-related mistakes in libc routines; Change-Id: I2d8ec5d061cd7e0b30c51ffd77aa72ebf84e2565
40 lines
797 B
C
40 lines
797 B
C
#include <sys/cdefs.h>
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#include "namespace.h"
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#include <lib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/resource.h>
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int getrusage(int who, struct rusage *r_usage)
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{
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int rc;
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message m;
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memset(&m, 0, sizeof(m));
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m.RU_WHO = who;
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m.RU_RUSAGE_ADDR = (char *) r_usage;
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if (r_usage == NULL) {
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errno = EFAULT;
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return -1;
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}
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if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN) {
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errno = EINVAL;
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return -1;
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}
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memset(r_usage, 0, sizeof(struct rusage));
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if ((rc = _syscall(PM_PROC_NR, PM_GETRUSAGE, &m)) < 0)
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return rc;
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memset(&m, 0, sizeof(m));
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m.RU_RUSAGE_ADDR = (char *) r_usage;
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if ((rc = _syscall(VFS_PROC_NR, VFS_GETRUSAGE, &m)) < 0)
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return rc;
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memset(&m, 0, sizeof(m));
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m.RU_RUSAGE_ADDR = (char *) r_usage;
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return _syscall(VM_PROC_NR, VM_GETRUSAGE, &m);
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}
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