1991/0809/port/devcons.c (diff list | history)

1991/0808/sys/src/9/port/devcons.c:37,73 – 1991/0809/sys/src/9/port/devcons.c:37,84 (short | long | prev | next)
1990/0227		} /*
1991/0607		* Print a string on the console. Convert \n to \r\n
1991/0809		* Print a string on the console. Convert \n to \r\n for serial * line consoles. Locking of the queues is left up to the screen * or uart code. Multi-line messages to serial consoles may get * interspersed with other messages.
1990/0227		*/ void putstrn(char *str, int n) { int s, c, m;
1991/0809		char buf[PRINTSIZE+2]; int m;
1990/0227		char *t;
1991/0808		static Lock fuck;
1990/0227
1991/0808		loop: s = splhi(); if(!canlock(&fuck)){ splx(s); goto loop; }
1991/0809		/* * if there's an attached bit mapped display, * put the message there. screenputs is defined * as a null macro for systems that have no such * display. */ screenputs(str, n); /* * if there's a serial line being used as a console, * put the message there. Tack a carriage return * before new lines. */ if(printq.puts == 0) return;
1990/0227		while(n > 0){
1991/0607		if(printq.puts && *str=='\n') (*printq.puts)(&printq, "\r", 1); m = n;
1990/0227		t = memchr(str+1, '\n', m-1); if(t) if(t-str < m) m = t - str;
1991/0607		if(printq.puts) (*printq.puts)(&printq, str, m); screenputs(str, m);
1990/0227		n -= m; str += m;
1991/0809		t = memchr(str, '\n', n); if(t){ m = t - str; memmove(buf, str, m); buf[m] = '\r'; buf[m+1] = '\n'; (*printq.puts)(&printq, buf, m+2); str = t + 1; n -= m + 1; } else { (*printq.puts)(&printq, str, n); break; }
1990/0227		}
1991/0808		unlock(&fuck); splx(s);
1990/0227		}
1991/0607		/*