68 static int histfd = -1;  variable
542 	if (histfd != -1) {  in sethistfile()
544 		(void)close(histfd);  in sethistfile()
545 		histfd = -1;  in sethistfile()
587 	if (histfd != -1) {  in histsync()
652 	if (svmode == HIST_STORE && histfd != -1)  in histsave()
729 	    lseek(histfd, (off_t)0, SEEK_SET) < 0)  in hist_persist_back()
749 			if ((w = write(histfd, cp, n)) != -1) {  in hist_persist_back()
762 	if (ftruncate(histfd, tot)) {  in hist_persist_back()
788 	if ((histfd = savefd(fd)) < 0)  in hist_persist_init()
790 	if (histfd != fd)  in hist_persist_init()
793 	mksh_lockfd(histfd);  in hist_persist_init()
795 	histfsize = lseek(histfd, (off_t)0, SEEK_END);  in hist_persist_init()
802 		    MAP_FILE | MAP_PRIVATE, histfd, (off_t)0);  in hist_persist_init()
826 			if (fstat(histfd, &sb) >= 0 &&  in hist_persist_init()
876 		if (write(histfd, sprinkle, 2) != 2) {  in hist_persist_init()
882 	if ((histfsize = lseek(histfd, (off_t)0, SEEK_END)) < 0)  in hist_persist_init()
885 	mksh_unlkfd(histfd);  in hist_persist_init()
965 	mksh_lockfd(histfd);  in writehistfile()
966 	if ((sizenow = lseek(histfd, (off_t)0, SEEK_END)) < 0)  in writehistfile()
983 		    MAP_FILE | MAP_PRIVATE, histfd, (off_t)0);  in writehistfile()
998 	if (cmd && !writehistline(histfd, lno, cmd)) {  in writehistfile()
1003 	if ((histfsize = lseek(histfd, (off_t)0, SEEK_END)) < 0)  in writehistfile()
1005 	mksh_unlkfd(histfd);  in writehistfile()
1026 	if (histfd >= 0) {  in hist_finish()
1027 		mksh_unlkfd(histfd);  in hist_finish()
1028 		(void)close(histfd);  in hist_finish()
1030 	histfd = -1;  in hist_finish()