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Tag: v0.2.3
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#include "node.h"
#include "platform.h"
#include <stdlib.h>
#include <kvm.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/user.h>
#include <string.h>
#include <paths.h>
#include <fcntl.h>
#include <unistd.h>
namespace node {
static char *process_title;
char** OS::SetupArgs(int argc, char *argv[]) {
process_title = argc ? strdup(argv[0]) : NULL;
return argv;
}
void OS::SetProcessTitle(char *title) {
if (process_title) free(process_title);
process_title = strdup(title);
setproctitle(title);
}
const char* OS::GetProcessTitle(int *len) {
if (process_title) {
*len = strlen(process_title);
return process_title;
}
*len = 0;
return NULL;
}
int OS::GetMemory(size_t *rss, size_t *vsize) {
kvm_t *kd = NULL;
struct kinfo_proc *kinfo = NULL;
pid_t pid;
int nprocs;
size_t page_size = getpagesize();
pid = getpid();
kd = kvm_open(NULL, _PATH_DEVNULL, NULL, O_RDONLY, "kvm_open");
if (kd == NULL) goto error;
kinfo = kvm_getprocs(kd, KERN_PROC_PID, pid, &nprocs);
if (kinfo == NULL) goto error;
*rss = kinfo->ki_rssize * page_size;
*vsize = kinfo->ki_size;
kvm_close(kd);
return 0;
error:
if (kd) kvm_close(kd);
return -1;
}
int OS::GetExecutablePath(char* buffer, size_t* size) {
int mib[4];
mib[0] = CTL_KERN;
mib[1] = KERN_PROC;
mib[2] = KERN_PROC_PATHNAME;
mib[3] = -1;
if (sysctl(mib, 4, buffer, size, NULL, 0) == -1) {
return -1;
}
return 0;
}
} // namespace node
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