68 static int histfd = -1;  variable
545 	if (histfd != -1) {  in sethistfile()
547 		(void)close(histfd);  in sethistfile()
548 		histfd = -1;  in sethistfile()
590 	if (histfd != -1) {  in histsync()
655 	if (svmode == HIST_STORE && histfd != -1)  in histsave()
732 	    lseek(histfd, (off_t)0, SEEK_SET) < 0)  in hist_persist_back()
752 			if ((w = write(histfd, cp, n)) != -1) {  in hist_persist_back()
765 	if (ftruncate(histfd, tot)) {  in hist_persist_back()
791 	if ((histfd = savefd(fd)) < 0)  in hist_persist_init()
793 	if (histfd != fd)  in hist_persist_init()
796 	mksh_lockfd(histfd);  in hist_persist_init()
798 	histfsize = lseek(histfd, (off_t)0, SEEK_END);  in hist_persist_init()
805 		    MAP_FILE | MAP_PRIVATE, histfd, (off_t)0);  in hist_persist_init()
829 			if (fstat(histfd, &sb) >= 0 &&  in hist_persist_init()
879 		if (write(histfd, sprinkle, 2) != 2) {  in hist_persist_init()
885 	if ((histfsize = lseek(histfd, (off_t)0, SEEK_END)) < 0)  in hist_persist_init()
888 	mksh_unlkfd(histfd);  in hist_persist_init()
968 	mksh_lockfd(histfd);  in writehistfile()
969 	if ((sizenow = lseek(histfd, (off_t)0, SEEK_END)) < 0)  in writehistfile()
986 		    MAP_FILE | MAP_PRIVATE, histfd, (off_t)0);  in writehistfile()
1001 	if (cmd && !writehistline(histfd, lno, cmd)) {  in writehistfile()
1006 	if ((histfsize = lseek(histfd, (off_t)0, SEEK_END)) < 0)  in writehistfile()
1008 	mksh_unlkfd(histfd);  in writehistfile()
1029 	if (histfd >= 0) {  in hist_finish()
1030 		mksh_unlkfd(histfd);  in hist_finish()
1031 		(void)close(histfd);  in hist_finish()
1033 	histfd = -1;  in hist_finish()