int
getdtablecount(void) {
struct procstat *procstat;
struct kinfo_proc *kipp;
struct filestat_list *head;
struct filestat *fst;
unsigned int fd_count = 0;
pid_t pid;
unsigned int cnt;
procstat = procstat_open_sysctl();
if (procstat == NULL)
return 0;
pid = getpid();
kipp = procstat_getprocs(procstat, KERN_PROC_PID, pid, &cnt);
if (kipp == NULL)
return 0;
if (cnt != 0) {
head = procstat_getfiles(procstat, kipp, 0);
if (head == NULL)
return 0;
fst = STAILQ_LAST(head, filestat, next);
fd_count = fst->fs_fd;
}
procstat_freeprocs(procstat, kipp);
return fd_count;
}
struct filestat_list* get_procfiles(pid_t pid, struct kinfo_proc **kp, struct procstat **procstat, unsigned int *cnt) {
int mflg = 0; // include mmapped files
(*procstat) = procstat_open_sysctl();
(*kp) = procstat_getprocs(*procstat, KERN_PROC_PID, pid, cnt);
if ((*kp) == NULL || *cnt < 1)
return NULL;
return procstat_getfiles(*procstat, *kp, mflg);
}
