pidfile_open
s_pidFH = pidfile_open(s_pidFilePath, 0600, &otherPID);
struct pidfh *pfh = pidfile_open("test_pidfile", 0600, &other);
pidfile_open(const char *_path, mode_t _mode, pid_t *_pidptr);
pf2 = pidfile_open(fn, 0600, &other);
pf = pidfile_open(fn, 0600, &other);
pf = pidfile_open(fn, 0600, &other);
pf = pidfile_open(fn, 0600, &other);
pfh = pidfile_open(path, 0600, NULL);
pf = pidfile_open(fn, 0600, &other);
pf1 = pidfile_open(fn, 0600, &other);
pfh = pidfile_open(pidfile, 0644, NULL);
pfh = pidfile_open(_pidfile.c_str(), 0600, &otherpid);
pidfile = pidfile_open(path_dhclient_pidfile, 0644, &otherpid);
pfh = pidfile_open(ggated_pidfile, 0600, &otherpid);
pfh = pidfile_open(cfg->hc_pidfile, 0600, &otherpid);
newpfh = pidfile_open(newcfg->hc_pidfile, 0600, &otherpid);
pfh = pidfile_open(pidfile, 0600, &otherpid);
pfh = pidfile_open(NULL, 0600, &pid);
pidfh = pidfile_open(pidfile_path, 0600, &otherpid);
pidfh = pidfile_open(pidfile_path, 0600, &otherpid);
chan->pfh = pidfile_open(pidfile, 0600, NULL);
pfh = pidfile_open(pidfile, 0600, &otherpid);
conf_pidfile = pidfile_open(path, 0600, &otherpid);
state->child_pidfh = pidfile_open(state->child_pidfile, 0600, &fpid);
state->parent_pidfh= pidfile_open(state->parent_pidfile, 0600, &fpid);
pfh = pidfile_open(pid_file, 0600, &otherpid);
pidfh = pidfile_open(pidfile_path, 0600, &otherpid);
pfh = pidfile_open(_PATH_MOUNTDPID, 0600, &otherpid);
pfh = pidfile_open(pidfile, 0600, &mpid);
pfh = pidfile_open(pidfile, 0600, &mpid);
masterpidfh = pidfile_open(pidfile_path, 0600, &otherpid);
pidfile = pidfile_open(DEFAULT_PIDFILE_PATH, 0644, &pid);
pfh = pidfile_open(pidfile, 0600, &otherpid);
pidfile_fh = pidfile_open(pidfile, 0600, NULL);
rpctls_pfh = pidfile_open(_PATH_RPCTLSCDPID, 0600, &otherpid);
rpctls_pfh = pidfile_open(_PATH_RPCTLSSDPID, 0600, &otherpid);
pidfh = pidfile_open(pidfile_path, 0600, NULL);
pfh = pidfile_open(pidfilename, 0600, &otherpid);
pfh = pidfile_open(pidfilepath, 0644, NULL);
pfh = pidfile_open(PidFile, 0600, &spid);
pfh = pidfile_open(ctx->pidfile, 0600, &opid);
pfh = pidfile_open(pidfile, 0600, &otherpid);