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openbsd: avoid requiring privileges for uv_resident_set_memory

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Aaron Bieber 2014-07-10 15:25:12 -06:00 committed by Saúl Ibarra Corretgé
parent dc1ea27c73
commit 38323c9fbf
1 changed files with 12 additions and 18 deletions
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30
src/unix/openbsd.c
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@ -180,29 +180,23 @@ int uv_get_process_title(char* buffer, size_t size) {
int uv_resident_set_memory(size_t* rss) {
kvm_t *kd = NULL;
struct kinfo_proc *kinfo = NULL;
pid_t pid;
int nprocs, max_size = sizeof(struct kinfo_proc);
struct kinfo_proc kinfo;
size_t page_size = getpagesize();
size_t size = sizeof(struct kinfo_proc);
int mib[6];
pid = getpid();
mib[0] = CTL_KERN;
mib[1] = KERN_PROC;
mib[2] = KERN_PROC_PID;
mib[3] = getpid();
mib[4] = sizeof(struct kinfo_proc);
mib[5] = 1;
kd = kvm_open(NULL, _PATH_MEM, NULL, O_RDONLY, "kvm_open");
if (kd == NULL) goto error;
kinfo = kvm_getprocs(kd, KERN_PROC_PID, pid, max_size, &nprocs);
if (kinfo == NULL) goto error;
*rss = kinfo->p_vm_rssize * page_size;
kvm_close(kd);
if (sysctl(mib, 6, &kinfo, &size, NULL, 0) < 0)
return -errno;
*rss = kinfo.p_vm_rssize * page_size;
return 0;
error:
if (kd) kvm_close(kd);
return -EPERM;
}