mirror of
https://github.com/urbit/shrub.git
synced 2024-12-01 06:35:32 +03:00
1333 lines
30 KiB
C
1333 lines
30 KiB
C
/* v/term.c
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**
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <setjmp.h>
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#include <gmp.h>
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#include <stdint.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <uv.h>
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#include <errno.h>
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#include <curses.h>
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#include <termios.h>
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#include <term.h>
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#include "all.h"
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#include "vere/vere.h"
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static void _term_spinner_cb(void*);
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static void _term_read_tn_cb(uv_stream_t* tcp_u,
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ssize_t siz_i,
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const uv_buf_t * buf_u);
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static void _term_read_cb(uv_stream_t* tcp_u,
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ssize_t siz_i,
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const uv_buf_t * buf_u);
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static inline void _term_suck(u3_utty*, const c3_y*, ssize_t);
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#define _T_ECHO 1 // local echo
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#define _T_CTIM 3 // suppress GA/char-at-a-time
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#define _T_NAWS 31 // negotiate about window size
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#define _SPIN_COOL_US 500000 // spinner activation delay when cool
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#define _SPIN_WARM_US 50000 // spinner activation delay when warm
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#define _SPIN_RATE_US 250000 // spinner rate (microseconds/frame)
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#define _SPIN_IDLE_US 500000 // spinner cools down if stopped this long
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/* _term_msc_out_host(): unix microseconds from current host time.
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*/
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static c3_d
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_term_msc_out_host()
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{
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struct timeval tim_tv;
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gettimeofday(&tim_tv, 0);
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return 1000000ULL * tim_tv.tv_sec + tim_tv.tv_usec;
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}
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static void
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_term_alloc(uv_handle_t* had_u,
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size_t len_i,
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uv_buf_t* buf
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)
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{
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void* ptr_v = c3_malloc(len_i);
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*buf = uv_buf_init(ptr_v, len_i);
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}
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/* _term_close_cb(): free terminal.
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*/
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static void
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_term_close_cb(uv_handle_t* han_t)
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{
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u3_utty* tty_u = (void*) han_t;
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if ( u3_Host.uty_u == tty_u ) {
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u3_Host.uty_u = tty_u->nex_u;
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}
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else {
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u3_utty* uty_u;
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for (uty_u = u3_Host.uty_u; uty_u; uty_u = uty_u->nex_u ) {
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if ( uty_u->nex_u == tty_u ) {
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uty_u->nex_u = tty_u->nex_u;
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break;
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}
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}
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}
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{
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u3_noun tid = u3dc("scot", c3__ud, tty_u->tid_l);
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u3_noun pax = u3nq(u3_blip, c3__term, tid, u3_nul);
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u3v_plan(u3k(pax), u3nc(c3__hook, u3_nul));
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u3z(pax);
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}
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free(tty_u);
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}
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/* u3_term_io_init(): initialize terminal.
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*/
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void
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u3_term_io_init()
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{
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u3_utty* uty_u = calloc(1, sizeof(u3_utty));
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if ( c3y == u3_Host.ops_u.dem ) {
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uty_u->fid_i = 1;
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uv_pipe_init(u3L, &(uty_u->pop_u), 0);
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uv_pipe_open(&(uty_u->pop_u), uty_u->fid_i);
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}
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else {
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// Initialize event processing. Rawdog it.
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//
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{
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uty_u->fid_i = 0; // stdin, yes we write to it...
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uv_pipe_init(u3L, &(uty_u->pop_u), 0);
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uv_pipe_open(&(uty_u->pop_u), uty_u->fid_i);
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uv_read_start((uv_stream_t*)&(uty_u->pop_u), _term_alloc, _term_read_cb);
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}
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// Configure horrible stateful terminfo api.
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//
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{
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if ( 0 != setupterm(0, 2, 0) ) {
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c3_assert(!"init-setupterm");
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}
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}
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// Load terminfo strings.
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//
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{
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c3_w len_w;
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# define _utfo(way, nam) \
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{ \
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uty_u->ufo_u.way.nam##_y = (const c3_y *) tigetstr(#nam); \
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c3_assert(uty_u->ufo_u.way.nam##_y); \
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}
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uty_u->ufo_u.inn.max_w = 0;
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_utfo(inn, kcuu1);
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_utfo(inn, kcud1);
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_utfo(inn, kcub1);
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_utfo(inn, kcuf1);
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_utfo(out, clear);
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_utfo(out, el);
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// _utfo(out, el1);
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_utfo(out, ed);
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_utfo(out, bel);
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_utfo(out, cub1);
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_utfo(out, cuf1);
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_utfo(out, cuu1);
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_utfo(out, cud1);
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// _utfo(out, cub);
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// _utfo(out, cuf);
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// Terminfo chronically reports the wrong sequence for arrow
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// keys on xterms. Drastic fix for ridiculous unacceptable bug.
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// Yes, we could fix this with smkx/rmkx, but this is retarded as well.
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{
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uty_u->ufo_u.inn.kcuu1_y = (const c3_y*)"\033[A";
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uty_u->ufo_u.inn.kcud1_y = (const c3_y*)"\033[B";
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uty_u->ufo_u.inn.kcuf1_y = (const c3_y*)"\033[C";
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uty_u->ufo_u.inn.kcub1_y = (const c3_y*)"\033[D";
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}
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uty_u->ufo_u.inn.max_w = 0;
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if ( (len_w = strlen((c3_c*)uty_u->ufo_u.inn.kcuu1_y)) >
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uty_u->ufo_u.inn.max_w )
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{
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uty_u->ufo_u.inn.max_w = len_w;
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}
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if ( (len_w = strlen((c3_c*)uty_u->ufo_u.inn.kcud1_y)) >
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uty_u->ufo_u.inn.max_w )
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{
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uty_u->ufo_u.inn.max_w = len_w;
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}
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if ( (len_w = strlen((c3_c*)uty_u->ufo_u.inn.kcub1_y)) >
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uty_u->ufo_u.inn.max_w )
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{
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uty_u->ufo_u.inn.max_w = len_w;
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}
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if ( (len_w = strlen((c3_c*)uty_u->ufo_u.inn.kcuf1_y)) >
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uty_u->ufo_u.inn.max_w )
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{
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uty_u->ufo_u.inn.max_w = len_w;
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}
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}
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// Load old terminal state to restore.
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//
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{
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if ( 0 != tcgetattr(uty_u->fid_i, &uty_u->bak_u) ) {
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c3_assert(!"init-tcgetattr");
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}
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if ( -1 == fcntl(uty_u->fid_i, F_GETFL, &uty_u->cug_i) ) {
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c3_assert(!"init-fcntl");
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}
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uty_u->cug_i &= ~O_NONBLOCK; // could fix?
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uty_u->nob_i = uty_u->cug_i | O_NONBLOCK; // O_NDELAY on older unix
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}
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// Construct raw termios configuration.
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//
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{
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uty_u->raw_u = uty_u->bak_u;
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uty_u->raw_u.c_lflag &= ~(ECHO | ECHONL | ICANON | IEXTEN);
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uty_u->raw_u.c_iflag &= ~(ICRNL | INPCK | ISTRIP);
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uty_u->raw_u.c_cflag &= ~(CSIZE | PARENB);
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uty_u->raw_u.c_cflag |= CS8;
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uty_u->raw_u.c_oflag &= ~(OPOST);
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uty_u->raw_u.c_cc[VMIN] = 0;
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uty_u->raw_u.c_cc[VTIME] = 0;
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}
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// Initialize mirror and accumulator state.
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//
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{
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uty_u->tat_u.mir.lin_w = 0;
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uty_u->tat_u.mir.len_w = 0;
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uty_u->tat_u.mir.cus_w = 0;
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uty_u->tat_u.esc.ape = c3n;
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uty_u->tat_u.esc.bra = c3n;
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uty_u->tat_u.fut.len_w = 0;
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uty_u->tat_u.fut.wid_w = 0;
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}
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}
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// This is terminal 1, linked in host.
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//
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{
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uty_u->tid_l = 1;
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uty_u->nex_u = 0;
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u3_Host.uty_u = uty_u;
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}
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if ( c3n == u3_Host.ops_u.dem ) {
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// Start raw input.
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//
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{
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if ( 0 != tcsetattr(uty_u->fid_i, TCSADRAIN, &uty_u->raw_u) ) {
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c3_assert(!"init-tcsetattr");
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}
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if ( -1 == fcntl(uty_u->fid_i, F_SETFL, uty_u->nob_i) ) {
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c3_assert(!"init-fcntl");
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}
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}
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// Start spinner thread.
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//
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{
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uty_u->tat_u.sun.sit_u = (uv_thread_t*)malloc(sizeof(uv_thread_t));
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if ( uty_u->tat_u.sun.sit_u ) {
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uv_mutex_init(&uty_u->tat_u.mex_u);
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uv_mutex_lock(&uty_u->tat_u.mex_u);
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c3_w ret_w = uv_thread_create(uty_u->tat_u.sun.sit_u,
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_term_spinner_cb,
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uty_u);
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if ( 0 != ret_w ) {
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uL(fprintf(uH, "term: spinner start: %s\n", uv_strerror(ret_w)));
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free(uty_u->tat_u.sun.sit_u);
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uty_u->tat_u.sun.sit_u = NULL;
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uv_mutex_unlock(&uty_u->tat_u.mex_u);
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uv_mutex_destroy(&uty_u->tat_u.mex_u);
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}
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}
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}
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}
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}
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/* u3_term_io_exit(): clean up terminal.
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*/
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void
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u3_term_io_exit(void)
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{
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if ( c3y == u3_Host.ops_u.dem ) {
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uv_close((uv_handle_t*)&u3_Host.uty_u->pop_u, NULL);
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}
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else {
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u3_utty* uty_u;
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for ( uty_u = u3_Host.uty_u; uty_u; uty_u = uty_u->nex_u ) {
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if ( uty_u->fid_i == -1 ) { continue; }
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if ( 0 != tcsetattr(uty_u->fid_i, TCSADRAIN, &uty_u->bak_u) ) {
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c3_assert(!"exit-tcsetattr");
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}
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if ( -1 == fcntl(uty_u->fid_i, F_SETFL, uty_u->cug_i) ) {
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c3_assert(!"exit-fcntl");
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}
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write(uty_u->fid_i, "\r\n", 2);
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#if 0
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if ( uty_u->tat_u.sun.sit_u ) {
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uv_thread_t* sit_u = uty_u->tat_u.sun.sit_u;
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uty_u->tat_u.sun.sit_u = NULL;
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uv_mutex_unlock(&uty_u->tat_u.mex_u);
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// XX can block exit waiting for wakeup (max _SPIN_COOL_US)
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c3_w ret_w;
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if ( 0 != (ret_w = uv_thread_join(sit_u)) ) {
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uL(fprintf(uH, "term: spinner exit: %s\n", uv_strerror(ret_w)));
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}
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else {
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uv_mutex_destroy(&uty_u->tat_u.mex_u);
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}
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free(sit_u);
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}
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#endif
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}
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}
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}
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void
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u3_term_io_poll(void)
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{
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}
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/* _term_it_buf(): create a data buffer.
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*/
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static u3_ubuf*
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_term_it_buf(c3_w len_w, const c3_y* hun_y)
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{
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u3_ubuf* buf_u = c3_malloc(len_w + sizeof(*buf_u));
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buf_u->len_w = len_w;
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memcpy(buf_u->hun_y, hun_y, len_w);
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buf_u->nex_u = 0;
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return buf_u;
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}
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/* An unusual lameness in libuv.
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*/
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typedef struct {
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uv_write_t wri_u;
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c3_y* buf_y;
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} _u3_write_t;
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/* _term_write_cb(): general write callback.
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*/
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static void
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_term_write_cb(uv_write_t* wri_u, c3_i sas_i)
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{
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_u3_write_t* ruq_u = (void *)wri_u;
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if ( 0 != sas_i ) {
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// uL(fprintf(uH, "term: write: ERROR\n"));
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}
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free(ruq_u->buf_y);
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free(ruq_u);
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}
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/* _term_it_write_buf(): write buffer uv style.
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*/
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static void
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_term_it_write_buf(u3_utty* uty_u, uv_buf_t buf_u)
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{
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_u3_write_t* ruq_u = (_u3_write_t*) c3_malloc(sizeof(_u3_write_t));
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ruq_u->buf_y = (c3_y*)buf_u.base;
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c3_w ret_w;
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if ( 0 != (ret_w = uv_write(&ruq_u->wri_u,
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(uv_stream_t*)&(uty_u->pop_u),
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&buf_u, 1,
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_term_write_cb)) )
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{
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uL(fprintf(uH, "terminal: %s\n", uv_strerror(ret_w)));
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}
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}
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/* _term_it_write_old(): write buffer, transferring pointer.
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*/
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static void
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_term_it_write_old(u3_utty* uty_u,
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u3_ubuf* old_u)
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{
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uv_buf_t buf_u;
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// XX extra copy here due to old code. Use hbod as base directly.
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//
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{
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c3_y* buf_y = c3_malloc(old_u->len_w);
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memcpy(buf_y, old_u->hun_y, old_u->len_w);
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buf_u = uv_buf_init((c3_c*)buf_y, old_u->len_w);
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free(old_u);
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}
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_term_it_write_buf(uty_u, buf_u);
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}
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/* _term_it_write_bytes(): write bytes, retaining pointer.
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*/
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static void
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_term_it_write_bytes(u3_utty* uty_u,
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c3_w len_w,
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const c3_y* hun_y)
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{
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_term_it_write_old(uty_u, _term_it_buf(len_w, hun_y));
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}
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/* _term_it_write_txt(): write null-terminated string, retaining pointer.
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*/
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static void
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_term_it_write_txt(u3_utty* uty_u,
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const c3_y* hun_y)
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{
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_term_it_write_bytes(uty_u, strlen((const c3_c*)hun_y), hun_y);
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}
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/* _term_it_write_str(): write null-terminated string, retaining pointer.
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*/
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static void
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_term_it_write_str(u3_utty* uty_u,
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const c3_c* str_c)
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{
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_term_it_write_txt(uty_u, (const c3_y*) str_c);
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}
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/* _term_it_show_wide(): show wide text, retaining.
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*/
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static void
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_term_it_show_wide(u3_utty* uty_u, c3_w len_w, c3_w* txt_w)
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{
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u3_noun wad = u3i_words(len_w, txt_w);
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u3_noun txt = u3do("tuft", wad);
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c3_c* txt_c = u3r_string(txt);
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_term_it_write_str(uty_u, txt_c);
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free(txt_c);
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u3z(txt);
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uty_u->tat_u.mir.cus_w += len_w;
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}
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/* _term_it_show_clear(): clear to the beginning of the current line.
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*/
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static void
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_term_it_show_clear(u3_utty* uty_u)
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{
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if ( uty_u->tat_u.siz.col_l ) {
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_term_it_write_str(uty_u, "\r");
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_term_it_write_txt(uty_u, uty_u->ufo_u.out.el_y);
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uty_u->tat_u.mir.len_w = 0;
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uty_u->tat_u.mir.cus_w = 0;
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}
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}
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/* _term_it_show_blank(): blank the screen.
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*/
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static void
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_term_it_show_blank(u3_utty* uty_u)
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{
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_term_it_write_txt(uty_u, uty_u->ufo_u.out.clear_y);
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}
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/* _term_it_show_cursor(): set current line, transferring pointer.
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*/
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static void
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_term_it_show_cursor(u3_utty* uty_u, c3_w cur_w)
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{
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if ( cur_w < uty_u->tat_u.mir.cus_w ) {
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c3_w dif_w = (uty_u->tat_u.mir.cus_w - cur_w);
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|
|
while ( dif_w-- ) {
|
|
_term_it_write_txt(uty_u, uty_u->ufo_u.out.cub1_y);
|
|
}
|
|
}
|
|
else if ( cur_w > uty_u->tat_u.mir.cus_w ) {
|
|
c3_w dif_w = (cur_w - uty_u->tat_u.mir.cus_w);
|
|
|
|
while ( dif_w-- ) {
|
|
_term_it_write_txt(uty_u, uty_u->ufo_u.out.cuf1_y);
|
|
}
|
|
}
|
|
uty_u->tat_u.mir.cus_w = cur_w;
|
|
}
|
|
|
|
/* _term_it_show_line(): set current line
|
|
*/
|
|
static void
|
|
_term_it_show_line(u3_utty* uty_u, c3_w* lin_w, c3_w len_w)
|
|
{
|
|
_term_it_show_wide(uty_u, len_w, lin_w);
|
|
|
|
if ( lin_w != uty_u->tat_u.mir.lin_w ) {
|
|
if ( uty_u->tat_u.mir.lin_w ) {
|
|
free(uty_u->tat_u.mir.lin_w);
|
|
}
|
|
uty_u->tat_u.mir.lin_w = lin_w;
|
|
}
|
|
uty_u->tat_u.mir.len_w = len_w;
|
|
}
|
|
|
|
/* _term_it_refresh_line(): refresh current line.
|
|
*/
|
|
static void
|
|
_term_it_refresh_line(u3_utty* uty_u)
|
|
{
|
|
c3_w len_w = uty_u->tat_u.mir.len_w;
|
|
c3_w cus_w = uty_u->tat_u.mir.cus_w;
|
|
|
|
_term_it_show_clear(uty_u);
|
|
_term_it_show_line(uty_u, uty_u->tat_u.mir.lin_w, len_w);
|
|
_term_it_show_cursor(uty_u, cus_w);
|
|
}
|
|
|
|
/* _term_it_show_more(): new current line.
|
|
*/
|
|
static void
|
|
_term_it_show_more(u3_utty* uty_u)
|
|
{
|
|
if ( c3y == u3_Host.ops_u.dem ) {
|
|
_term_it_write_str(uty_u, "\n");
|
|
} else {
|
|
_term_it_write_str(uty_u, "\r\n");
|
|
}
|
|
uty_u->tat_u.mir.cus_w = 0;
|
|
}
|
|
|
|
/* _term_it_path(): path for console file.
|
|
*/
|
|
static c3_c*
|
|
_term_it_path(c3_o fyl, u3_noun pax)
|
|
{
|
|
c3_w len_w;
|
|
c3_c *pas_c;
|
|
|
|
// measure
|
|
//
|
|
len_w = strlen(u3_Host.dir_c);
|
|
{
|
|
u3_noun wiz = pax;
|
|
|
|
while ( u3_nul != wiz ) {
|
|
len_w += (1 + u3r_met(3, u3h(wiz)));
|
|
wiz = u3t(wiz);
|
|
}
|
|
}
|
|
|
|
// cut
|
|
//
|
|
pas_c = c3_malloc(len_w + 1);
|
|
strncpy(pas_c, u3_Host.dir_c, len_w);
|
|
pas_c[len_w] = '\0';
|
|
{
|
|
u3_noun wiz = pax;
|
|
c3_c* waq_c = (pas_c + strlen(pas_c));
|
|
|
|
while ( u3_nul != wiz ) {
|
|
c3_w tis_w = u3r_met(3, u3h(wiz));
|
|
|
|
if ( (c3y == fyl) && (u3_nul == u3t(wiz)) ) {
|
|
*waq_c++ = '.';
|
|
} else *waq_c++ = '/';
|
|
|
|
u3r_bytes(0, tis_w, (c3_y*)waq_c, u3h(wiz));
|
|
waq_c += tis_w;
|
|
|
|
wiz = u3t(wiz);
|
|
}
|
|
*waq_c = 0;
|
|
}
|
|
u3z(pax);
|
|
return pas_c;
|
|
}
|
|
|
|
/* _term_it_save(): save file by path.
|
|
*/
|
|
static void
|
|
_term_it_save(u3_noun pax, u3_noun pad)
|
|
{
|
|
c3_c* pax_c;
|
|
c3_c* bas_c = 0;
|
|
c3_w xap_w = u3kb_lent(u3k(pax));
|
|
u3_noun xap = u3_nul;
|
|
u3_noun urb = c3_s4('.','u','r','b');
|
|
u3_noun put = c3_s3('p','u','t');
|
|
|
|
// directory base and relative path
|
|
if ( 2 < xap_w ) {
|
|
u3_noun bas = u3nt(urb, put, u3_nul);
|
|
bas_c = _term_it_path(c3n, bas);
|
|
xap = u3qb_scag(xap_w - 2, pax);
|
|
}
|
|
|
|
pax = u3nt(urb, put, pax);
|
|
pax_c = _term_it_path(c3y, pax);
|
|
|
|
u3_walk_save(pax_c, 0, pad, bas_c, xap);
|
|
|
|
free(pax_c);
|
|
free(bas_c);
|
|
}
|
|
|
|
/* _term_io_belt(): send belt.
|
|
*/
|
|
static void
|
|
_term_io_belt(u3_utty* uty_u, u3_noun blb)
|
|
{
|
|
u3_noun tid = u3dc("scot", c3__ud, uty_u->tid_l);
|
|
u3_noun pax = u3nq(u3_blip, c3__term, tid, u3_nul);
|
|
|
|
u3v_plan(pax, u3nc(c3__belt, blb));
|
|
}
|
|
|
|
/* _term_io_suck_char(): process a single character.
|
|
*/
|
|
static void
|
|
_term_io_suck_char(u3_utty* uty_u, c3_y cay_y)
|
|
{
|
|
u3_utat* tat_u = &uty_u->tat_u;
|
|
|
|
if ( c3y == tat_u->esc.ape ) {
|
|
if ( c3y == tat_u->esc.bra ) {
|
|
switch ( cay_y ) {
|
|
default: {
|
|
_term_it_write_txt(uty_u, uty_u->ufo_u.out.bel_y);
|
|
break;
|
|
}
|
|
case 'A': _term_io_belt(uty_u, u3nc(c3__aro, 'u')); break;
|
|
case 'B': _term_io_belt(uty_u, u3nc(c3__aro, 'd')); break;
|
|
case 'C': _term_io_belt(uty_u, u3nc(c3__aro, 'r')); break;
|
|
case 'D': _term_io_belt(uty_u, u3nc(c3__aro, 'l')); break;
|
|
}
|
|
tat_u->esc.ape = tat_u->esc.bra = c3n;
|
|
}
|
|
else {
|
|
if ( (cay_y >= 'a') && (cay_y <= 'z') ) {
|
|
tat_u->esc.ape = c3n;
|
|
_term_io_belt(uty_u, u3nc(c3__met, cay_y));
|
|
}
|
|
else if ( '.' == cay_y ) {
|
|
tat_u->esc.ape = c3n;
|
|
_term_io_belt(uty_u, u3nc(c3__met, c3__dot));
|
|
}
|
|
else if ( 8 == cay_y || 127 == cay_y ) {
|
|
tat_u->esc.ape = c3n;
|
|
_term_io_belt(uty_u, u3nc(c3__met, c3__bac));
|
|
}
|
|
else if ( ('[' == cay_y) || ('O' == cay_y) ) {
|
|
tat_u->esc.bra = c3y;
|
|
}
|
|
else {
|
|
tat_u->esc.ape = c3n;
|
|
|
|
_term_it_write_txt(uty_u, uty_u->ufo_u.out.bel_y);
|
|
}
|
|
}
|
|
}
|
|
else if ( 0 != tat_u->fut.wid_w ) {
|
|
tat_u->fut.syb_y[tat_u->fut.len_w++] = cay_y;
|
|
|
|
if ( tat_u->fut.len_w == tat_u->fut.wid_w ) {
|
|
u3_noun huv = u3i_bytes(tat_u->fut.wid_w, tat_u->fut.syb_y);
|
|
u3_noun wug;
|
|
|
|
// uL(fprintf(uH, "muck-utf8 len %d\n", tat_u->fut.len_w));
|
|
// uL(fprintf(uH, "muck-utf8 %x\n", huv));
|
|
wug = u3do("turf", huv);
|
|
// uL(fprintf(uH, "muck-utf32 %x\n", tat_u->fut.len_w));
|
|
|
|
tat_u->fut.len_w = tat_u->fut.wid_w = 0;
|
|
_term_io_belt(uty_u, u3nt(c3__txt, wug, u3_nul));
|
|
}
|
|
}
|
|
else {
|
|
if ( (cay_y >= 32) && (cay_y < 127) ) {
|
|
_term_io_belt(uty_u, u3nt(c3__txt, cay_y, u3_nul));
|
|
}
|
|
else if ( 0 == cay_y ) {
|
|
_term_it_write_txt(uty_u, uty_u->ufo_u.out.bel_y);
|
|
}
|
|
else if ( 8 == cay_y || 127 == cay_y ) {
|
|
_term_io_belt(uty_u, u3nc(c3__bac, u3_nul));
|
|
}
|
|
else if ( 13 == cay_y ) {
|
|
_term_io_belt(uty_u, u3nc(c3__ret, u3_nul));
|
|
}
|
|
#if 0
|
|
else if ( 6 == cay_y ) {
|
|
_term_io_flow(uty_u); // XX hack
|
|
}
|
|
#endif
|
|
else if ( cay_y <= 26 ) {
|
|
_term_io_belt(uty_u, u3nc(c3__ctl, ('a' + (cay_y - 1))));
|
|
}
|
|
else if ( 27 == cay_y ) {
|
|
tat_u->esc.ape = c3y;
|
|
}
|
|
else if ( cay_y >= 128 ) {
|
|
tat_u->fut.len_w = 1;
|
|
tat_u->fut.syb_y[0] = cay_y;
|
|
|
|
if ( cay_y < 224 ) {
|
|
tat_u->fut.wid_w = 2;
|
|
} else if ( cay_y < 240 ) {
|
|
tat_u->fut.wid_w = 3;
|
|
} else tat_u->fut.wid_w = 4;
|
|
}
|
|
}
|
|
}
|
|
/* _term_suck(): process a chunk of input
|
|
*/
|
|
|
|
/*
|
|
* `nread` (siz_w) is > 0 if there is data available, 0 if libuv is done reading for
|
|
* now, or < 0 on error.
|
|
*
|
|
* The callee is responsible for closing the stream when an error happens
|
|
* by calling uv_close(). Trying to read from the stream again is undefined.
|
|
*
|
|
* The callee is responsible for freeing the buffer, libuv does not reuse it.
|
|
* The buffer may be a null buffer (where buf->base=NULL and buf->len=0) on
|
|
* error.
|
|
*/
|
|
|
|
static inline void
|
|
_term_suck(u3_utty* uty_u, const c3_y* buf, ssize_t siz_i)
|
|
{
|
|
u3_lo_open();
|
|
{
|
|
if ( siz_i == UV_EOF ) {
|
|
// nothing
|
|
} else if ( siz_i < 0 ) {
|
|
uL(fprintf(uH, "term %d: read: %s\n", uty_u->tid_l, uv_strerror(siz_i)));
|
|
}
|
|
else {
|
|
c3_i i;
|
|
|
|
for ( i=0; i < siz_i; i++ ) {
|
|
_term_io_suck_char(uty_u, buf[i]);
|
|
}
|
|
}
|
|
}
|
|
u3_lo_shut(c3y);
|
|
}
|
|
|
|
/* _term_read_cb(): server read callback.
|
|
*/
|
|
static void
|
|
_term_read_cb(uv_stream_t* tcp_u,
|
|
ssize_t siz_i,
|
|
const uv_buf_t * buf_u)
|
|
{
|
|
u3_utty* uty_u = (u3_utty*)(void*)tcp_u;
|
|
_term_suck(uty_u, (const c3_y*)buf_u->base, siz_i);
|
|
free(buf_u->base);
|
|
}
|
|
|
|
/* _term_try_write_str(): write null-terminated string (off-thread, retain).
|
|
*/
|
|
static void
|
|
_term_try_write_str(u3_utty* uty_u,
|
|
const c3_c* hun_y)
|
|
{
|
|
// c3_i fid_i = uv_fileno(&uty_u->pop_u);
|
|
c3_i fid_i = uty_u->pop_u.io_watcher.fd; // XX old libuv
|
|
write(fid_i, hun_y, strlen(hun_y));
|
|
}
|
|
|
|
/* _term_try_move_left(): move the cursor left (off-thread).
|
|
*/
|
|
static void
|
|
_term_try_move_left(u3_utty* uty_u)
|
|
{
|
|
_term_try_write_str(uty_u, (const c3_c*)uty_u->ufo_u.out.cub1_y);
|
|
}
|
|
|
|
/* _term_show_spinner(): render spinner (off-thread).
|
|
*/
|
|
static void
|
|
_term_show_spinner(u3_utty* uty_u, c3_d lag_d)
|
|
{
|
|
if ( 0 == uty_u->tat_u.sun.eve_d ) {
|
|
return;
|
|
}
|
|
|
|
c3_w cus_w = uty_u->tat_u.mir.cus_w;
|
|
|
|
if ( cus_w >= uty_u->tat_u.siz.col_l ) { // shenanigans!
|
|
return;
|
|
}
|
|
|
|
c3_w bac_w = uty_u->tat_u.siz.col_l - 1 - cus_w; // backoff from end of line
|
|
|
|
const c3_c daz_c[] = "|/-\\";
|
|
const c3_c dal_c[] = "\xc2\xab";
|
|
const c3_c dar_c[] = "\xc2\xbb";
|
|
|
|
c3_c buf_c[1 + 2 + 4 + 2 + 1];
|
|
// | + « + why + » + \0
|
|
|
|
c3_c* cur_c = buf_c;
|
|
|
|
*cur_c++ = daz_c[(lag_d / _SPIN_RATE_US) % strlen(daz_c)];
|
|
c3_w sol_w = 1; // spinner length (utf-32)
|
|
|
|
c3_c* why_c = uty_u->tat_u.sun.why_c;
|
|
if ( why_c && strlen(why_c) <= 4 ) {
|
|
strcpy(cur_c, dal_c);
|
|
cur_c += strlen(dal_c);
|
|
sol_w += 1; // length of dal_c (utf-32)
|
|
|
|
c3_w wel_w = strlen(why_c);
|
|
strcpy(cur_c, why_c);
|
|
cur_c += wel_w;
|
|
sol_w += wel_w;
|
|
|
|
strcpy(cur_c, dar_c);
|
|
cur_c += strlen(dar_c);
|
|
sol_w += 1; // length of dar_c (utf-32)
|
|
}
|
|
*cur_c = '\0';
|
|
|
|
// One-time cursor backoff.
|
|
if ( c3n == uty_u->tat_u.sun.diz_o ) {
|
|
c3_w i_w;
|
|
for ( i_w = bac_w; i_w < sol_w; i_w++ ) {
|
|
_term_try_move_left(uty_u);
|
|
}
|
|
}
|
|
|
|
_term_try_write_str(uty_u, buf_c);
|
|
uty_u->tat_u.sun.diz_o = c3y;
|
|
|
|
// Cursor stays on spinner.
|
|
while ( sol_w-- ) {
|
|
_term_try_move_left(uty_u);
|
|
}
|
|
}
|
|
|
|
/* _term_start_spinner(): prepare spinner state. RETAIN.
|
|
*/
|
|
static void
|
|
_term_start_spinner(u3_utty* uty_u, u3_noun ovo)
|
|
{
|
|
uty_u->tat_u.sun.diz_o = c3n;
|
|
|
|
c3_d now_d = _term_msc_out_host();
|
|
|
|
// If we receive an event shortly after a previous spin, use a shorter delay
|
|
// to avoid giving the impression of a half-idle system.
|
|
//
|
|
c3_d lag_d;
|
|
if ( now_d - uty_u->tat_u.sun.end_d < _SPIN_IDLE_US ) {
|
|
lag_d = _SPIN_WARM_US;
|
|
}
|
|
else {
|
|
lag_d = _SPIN_COOL_US;
|
|
}
|
|
|
|
u3_noun why = u3h(u3t(u3h(u3t(ovo))));
|
|
if ( c3__term == why ) {
|
|
u3_noun eve = u3t(u3t(ovo));
|
|
if ( c3__belt == u3h(eve) && c3__ret == u3h(u3t(eve)) ) {
|
|
lag_d = 0; // No delay for %ret.
|
|
}
|
|
}
|
|
else {
|
|
uty_u->tat_u.sun.why_c = (c3_c*)u3r_string(why);
|
|
}
|
|
|
|
uty_u->tat_u.sun.eve_d = now_d + lag_d;
|
|
|
|
uv_mutex_unlock(&uty_u->tat_u.mex_u);
|
|
}
|
|
|
|
/* _term_stop_spinner(): reset spinner state and restore input line.
|
|
*/
|
|
static void
|
|
_term_stop_spinner(u3_utty* uty_u)
|
|
{
|
|
uv_mutex_lock(&uty_u->tat_u.mex_u);
|
|
|
|
if ( c3y == uty_u->tat_u.sun.diz_o ) {
|
|
_term_it_refresh_line(uty_u);
|
|
uty_u->tat_u.sun.end_d = _term_msc_out_host();
|
|
}
|
|
else {
|
|
uty_u->tat_u.sun.end_d = 0;
|
|
}
|
|
|
|
uty_u->tat_u.sun.diz_o = c3n;
|
|
uty_u->tat_u.sun.eve_d = 0;
|
|
free(uty_u->tat_u.sun.why_c);
|
|
uty_u->tat_u.sun.why_c = NULL;
|
|
}
|
|
|
|
/* _term_spinner_cb(): manage spinner (off-thread).
|
|
*/
|
|
static void
|
|
_term_spinner_cb(void* ptr_v)
|
|
{
|
|
// This thread shouldn't receive signals.
|
|
//
|
|
{
|
|
sigset_t set;
|
|
sigfillset(&set);
|
|
pthread_sigmask(SIG_BLOCK, &set, NULL);
|
|
}
|
|
|
|
u3_utty* uty_u = (u3_utty*)ptr_v;
|
|
|
|
for ( uv_mutex_lock(&uty_u->tat_u.mex_u);
|
|
uty_u->tat_u.sun.sit_u;
|
|
uv_mutex_lock(&uty_u->tat_u.mex_u) )
|
|
{
|
|
c3_d eve_d = uty_u->tat_u.sun.eve_d;
|
|
|
|
if ( 0 == eve_d ) {
|
|
c3_o diz_o = uty_u->tat_u.sun.diz_o;
|
|
uv_mutex_unlock(&uty_u->tat_u.mex_u);
|
|
usleep(c3y == diz_o ? _SPIN_WARM_US : _SPIN_COOL_US);
|
|
}
|
|
else {
|
|
c3_d now_d = _term_msc_out_host();
|
|
|
|
if (now_d < eve_d) {
|
|
uv_mutex_unlock(&uty_u->tat_u.mex_u);
|
|
usleep(eve_d - now_d);
|
|
}
|
|
else {
|
|
_term_show_spinner(uty_u, now_d - eve_d);
|
|
uv_mutex_unlock(&uty_u->tat_u.mex_u);
|
|
usleep(_SPIN_RATE_US);
|
|
}
|
|
}
|
|
}
|
|
|
|
uv_mutex_unlock(&uty_u->tat_u.mex_u);
|
|
}
|
|
|
|
/* _term_main(): return main or console terminal.
|
|
*/
|
|
static u3_utty*
|
|
_term_main()
|
|
{
|
|
u3_utty* uty_u;
|
|
|
|
for ( uty_u = u3_Host.uty_u; uty_u; uty_u = uty_u->nex_u ) {
|
|
if ( (uty_u->fid_i != -1) && (uty_u->fid_i <= 2) ) {
|
|
return uty_u;
|
|
}
|
|
}
|
|
return u3_Host.uty_u;
|
|
}
|
|
|
|
/* _term_ef_get(): terminal by id.
|
|
*/
|
|
static u3_utty*
|
|
_term_ef_get(c3_l tid_l)
|
|
{
|
|
if ( 0 != tid_l ) {
|
|
u3_utty* uty_u;
|
|
|
|
for ( uty_u = u3_Host.uty_u; uty_u; uty_u = uty_u->nex_u ) {
|
|
if ( tid_l == uty_u->tid_l ) {
|
|
return uty_u;
|
|
}
|
|
}
|
|
}
|
|
return _term_main();
|
|
}
|
|
|
|
/* u3_term_get_blew(): return window size [columns rows].
|
|
*/
|
|
u3_noun
|
|
u3_term_get_blew(c3_l tid_l)
|
|
{
|
|
u3_utty* uty_u = _term_ef_get(tid_l);
|
|
c3_l col_l, row_l;
|
|
|
|
struct winsize siz_u;
|
|
if ( uty_u && (0 == ioctl(uty_u->fid_i, TIOCGWINSZ, &siz_u)) ) {
|
|
col_l = siz_u.ws_col;
|
|
row_l = siz_u.ws_row;
|
|
} else {
|
|
col_l = 80;
|
|
row_l = 24;
|
|
}
|
|
|
|
if ( uty_u ) {
|
|
uty_u->tat_u.siz.col_l = col_l;
|
|
uty_u->tat_u.siz.row_l = row_l;
|
|
}
|
|
|
|
return u3nc(col_l, row_l);
|
|
}
|
|
|
|
/* u3_term_ef_winc(): window change. Just console right now.
|
|
*/
|
|
void
|
|
u3_term_ef_winc(void)
|
|
{
|
|
u3_noun pax = u3nq(u3_blip, c3__term, '1', u3_nul);
|
|
|
|
u3v_plan(pax, u3nc(c3__blew, u3_term_get_blew(1)));
|
|
}
|
|
|
|
/* u3_term_ef_ctlc(): send ^C on console.
|
|
*/
|
|
void
|
|
u3_term_ef_ctlc(void)
|
|
{
|
|
u3_noun pax = u3nq(u3_blip, c3__term, '1', u3_nul);
|
|
|
|
u3v_plan(pax, u3nt(c3__belt, c3__ctl, 'c'));
|
|
|
|
_term_it_refresh_line(_term_main());
|
|
}
|
|
|
|
/* u3_term_ef_boil(): initial effects for loaded servers.
|
|
*/
|
|
void
|
|
u3_term_ef_boil(void)
|
|
{
|
|
{
|
|
u3_noun pax = u3nq(u3_blip, c3__term, '1', u3_nul);
|
|
|
|
// u3v_plan(u3k(pax), u3nc(c3__init, u3k(u3h(u3A->own))));
|
|
u3v_plan(u3k(pax), u3nc(c3__harm, u3_nul));
|
|
u3v_plan(u3k(pax), u3nc(c3__blew, u3_term_get_blew(1)));
|
|
u3v_plan(u3k(pax), u3nc(c3__hail, u3_nul));
|
|
|
|
u3z(pax);
|
|
}
|
|
}
|
|
|
|
/* u3_term_ef_verb(): initial effects for verbose events
|
|
*/
|
|
void
|
|
u3_term_ef_verb(void)
|
|
{
|
|
u3_noun pax = u3nq(u3_blip, c3__term, '1', u3_nul);
|
|
|
|
u3v_plan(pax, u3nc(c3__verb, u3_nul));
|
|
}
|
|
|
|
/* u3_term_ef_ticket(): initial effects for new ticket.
|
|
*/
|
|
void
|
|
u3_term_ef_ticket(c3_c* who_c, c3_c* tic_c)
|
|
{
|
|
u3_noun pax = u3nq(u3_blip, c3__term, '1', u3_nul);
|
|
u3_noun who, tic;
|
|
u3_noun whu, tuc;
|
|
|
|
whu = u3dc("slaw", 'p', u3i_string(who_c));
|
|
if ( u3_nul == whu ) {
|
|
fprintf(stderr, "ticket: invalid planet '%s'\r\n", who_c);
|
|
exit(1);
|
|
}
|
|
else { who = u3k(u3t(whu)); u3z(whu); }
|
|
|
|
tuc = u3dc("slaw", 'p', u3i_string(tic_c));
|
|
if ( u3_nul == tuc ) {
|
|
fprintf(stderr, "ticket: invalid secret '%s'\r\n", tic_c);
|
|
exit(1);
|
|
}
|
|
else { tic = u3k(u3t(tuc)); u3z(tuc); }
|
|
|
|
u3v_plan(pax, u3nt(c3__tick, who, tic));
|
|
}
|
|
|
|
/* u3_term_ef_bake(): initial effects for new terminal.
|
|
*/
|
|
void
|
|
u3_term_ef_bake(u3_noun fav)
|
|
{
|
|
u3_noun pax = u3nq(u3_blip, c3__term, '1', u3_nul);
|
|
|
|
u3v_plan(u3k(pax), u3nc(c3__boot, fav));
|
|
// u3v_plan(u3k(pax), u3nq(c3__flow, c3__seat, c3__dojo, u3_nul));
|
|
u3v_plan(u3k(pax), u3nc(c3__blew, u3_term_get_blew(1)));
|
|
u3v_plan(u3k(pax), u3nc(c3__hail, u3_nul));
|
|
|
|
u3z(pax);
|
|
}
|
|
|
|
/* _term_ef_blit(): send blit to terminal.
|
|
*/
|
|
static void
|
|
_term_ef_blit(u3_utty* uty_u,
|
|
u3_noun blt)
|
|
{
|
|
switch ( u3h(blt) ) {
|
|
default: break;
|
|
case c3__bee: {
|
|
if ( c3n == u3_Host.ops_u.dem ) {
|
|
if ( u3_nul == u3t(blt) ) {
|
|
_term_stop_spinner(uty_u);
|
|
}
|
|
else {
|
|
_term_start_spinner(uty_u, u3t(blt));
|
|
}
|
|
}
|
|
} break;
|
|
|
|
case c3__bel: {
|
|
if ( c3n == u3_Host.ops_u.dem ) {
|
|
_term_it_write_txt(uty_u, uty_u->ufo_u.out.bel_y);
|
|
}
|
|
} break;
|
|
|
|
case c3__clr: {
|
|
if ( c3n == u3_Host.ops_u.dem ) {
|
|
_term_it_show_blank(uty_u);
|
|
_term_it_refresh_line(uty_u);
|
|
}
|
|
} break;
|
|
|
|
case c3__hop: {
|
|
if ( c3n == u3_Host.ops_u.dem ) {
|
|
_term_it_show_cursor(uty_u, u3t(blt));
|
|
}
|
|
} break;
|
|
|
|
case c3__lin: {
|
|
u3_noun lin = u3t(blt);
|
|
c3_w len_w = u3kb_lent(u3k(lin));
|
|
c3_w* lin_w = c3_malloc(4 * len_w);
|
|
|
|
{
|
|
c3_w i_w;
|
|
|
|
for ( i_w = 0; u3_nul != lin; i_w++, lin = u3t(lin) ) {
|
|
lin_w[i_w] = u3r_word(0, u3h(lin));
|
|
}
|
|
}
|
|
|
|
if ( c3n == u3_Host.ops_u.dem ) {
|
|
_term_it_show_clear(uty_u);
|
|
_term_it_show_line(uty_u, lin_w, len_w);
|
|
} else {
|
|
_term_it_show_line(uty_u, lin_w, len_w);
|
|
}
|
|
} break;
|
|
|
|
case c3__mor: {
|
|
_term_it_show_more(uty_u);
|
|
} break;
|
|
|
|
case c3__sav: {
|
|
_term_it_save(u3k(u3h(u3t(blt))), u3k(u3t(u3t(blt))));
|
|
} break;
|
|
|
|
case c3__sag: {
|
|
u3_noun pib = u3k(u3t(u3t(blt)));
|
|
u3_noun jam;
|
|
|
|
jam = u3ke_jam(pib);
|
|
|
|
_term_it_save(u3k(u3h(u3t(blt))), jam);
|
|
} break;
|
|
|
|
case c3__url: {
|
|
if ( c3n == u3ud(u3t(blt)) ) {
|
|
break;
|
|
} else {
|
|
c3_c* txt_c = u3r_string(u3t(blt));
|
|
|
|
_term_it_show_clear(uty_u);
|
|
_term_it_write_str(uty_u, txt_c);
|
|
free(txt_c);
|
|
|
|
_term_it_show_more(uty_u);
|
|
_term_it_refresh_line(uty_u);
|
|
}
|
|
}
|
|
}
|
|
u3z(blt);
|
|
|
|
return;
|
|
}
|
|
|
|
/* u3_term_ef_blit(): send %blit list to specific terminal.
|
|
*/
|
|
void
|
|
u3_term_ef_blit(c3_l tid_l,
|
|
u3_noun bls)
|
|
{
|
|
u3_utty* uty_u = _term_ef_get(tid_l);
|
|
|
|
if ( 0 == uty_u ) {
|
|
// uL(fprintf(uH, "no terminal %d\n", tid_l));
|
|
// uL(fprintf(uH, "uty_u %p\n", u3_Host.uty_u));
|
|
|
|
u3z(bls); return;
|
|
}
|
|
|
|
{
|
|
u3_noun bis = bls;
|
|
|
|
while ( c3y == u3du(bis) ) {
|
|
_term_ef_blit(uty_u, u3k(u3h(bis)));
|
|
bis = u3t(bis);
|
|
}
|
|
u3z(bls);
|
|
}
|
|
}
|
|
|
|
/* u3_term_io_hija(): hijack console for fprintf, returning FILE*.
|
|
*/
|
|
FILE*
|
|
u3_term_io_hija(void)
|
|
{
|
|
u3_utty* uty_u = _term_main();
|
|
|
|
if ( uty_u ) {
|
|
if ( uty_u->fid_i > 2 ) {
|
|
// We *should* in fact, produce some kind of fake FILE* for
|
|
// non-console terminals. If we use this interface enough...
|
|
//
|
|
c3_assert(0);
|
|
}
|
|
else {
|
|
if ( c3n == u3_Host.ops_u.dem ) {
|
|
if ( 0 != tcsetattr(1, TCSADRAIN, &uty_u->bak_u) ) {
|
|
c3_assert(!"hija-tcsetattr");
|
|
}
|
|
if ( -1 == fcntl(1, F_SETFL, uty_u->cug_i) ) {
|
|
c3_assert(!"hija-fcntl");
|
|
}
|
|
if ( 0 != tcsetattr(0, TCSADRAIN, &uty_u->bak_u) ) {
|
|
c3_assert(!"hija-tcsetattr");
|
|
}
|
|
if ( -1 == fcntl(0, F_SETFL, uty_u->cug_i) ) {
|
|
c3_assert(!"hija-fcntl");
|
|
}
|
|
write(uty_u->fid_i, "\r", 1);
|
|
write(uty_u->fid_i, uty_u->ufo_u.out.el_y,
|
|
strlen((c3_c*) uty_u->ufo_u.out.el_y));
|
|
}
|
|
return stdout;
|
|
}
|
|
}
|
|
else return stdout;
|
|
}
|
|
|
|
/* u3_term_io_loja(): release console from fprintf.
|
|
*/
|
|
void
|
|
u3_term_io_loja(int x)
|
|
{
|
|
u3_utty* uty_u = _term_main();
|
|
|
|
if ( uty_u ) {
|
|
if ( uty_u->fid_i > 2 ) {
|
|
// We *should* in fact, produce some kind of fake FILE* for
|
|
// non-console terminals. If we use this interface enough...
|
|
//
|
|
c3_assert(0);
|
|
}
|
|
else {
|
|
if ( c3y == u3_Host.ops_u.dem ) {
|
|
fflush(stdout);
|
|
}
|
|
else {
|
|
if ( 0 != tcsetattr(1, TCSADRAIN, &uty_u->raw_u) ) {
|
|
c3_assert(!"loja-tcsetattr");
|
|
}
|
|
if ( -1 == fcntl(1, F_SETFL, uty_u->nob_i) ) {
|
|
c3_assert(!"loja-fcntl");
|
|
}
|
|
if ( 0 != tcsetattr(0, TCSADRAIN, &uty_u->raw_u) ) {
|
|
c3_assert(!"loja-tcsetattr");
|
|
}
|
|
if ( -1 == fcntl(0, F_SETFL, uty_u->nob_i) ) {
|
|
c3_assert(!"loja-fcntl");
|
|
}
|
|
_term_it_refresh_line(uty_u);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* u3_term_tape_to(): dump a tape to a file.
|
|
*/
|
|
void
|
|
u3_term_tape_to(FILE *fil_f, u3_noun tep)
|
|
{
|
|
u3_noun tap = tep;
|
|
|
|
while ( u3_nul != tap ) {
|
|
c3_c car_c;
|
|
|
|
if ( u3h(tap) >= 127 ) {
|
|
car_c = '?';
|
|
} else car_c = u3h(tap);
|
|
|
|
putc(car_c, fil_f);
|
|
tap = u3t(tap);
|
|
}
|
|
u3z(tep);
|
|
}
|
|
|
|
/* u3_term_tape(): dump a tape to stdout.
|
|
*/
|
|
void
|
|
u3_term_tape(u3_noun tep)
|
|
{
|
|
FILE* fil_f = u3_term_io_hija();
|
|
|
|
u3_term_tape_to(fil_f, tep);
|
|
|
|
u3_term_io_loja(0);
|
|
}
|
|
|
|
/* u3_term_wall(): dump a wall to stdout.
|
|
*/
|
|
void
|
|
u3_term_wall(u3_noun wol)
|
|
{
|
|
FILE* fil_f = u3_term_io_hija();
|
|
u3_noun wal = wol;
|
|
|
|
while ( u3_nul != wal ) {
|
|
u3_term_tape_to(fil_f, u3k(u3h(wal)));
|
|
|
|
putc(13, fil_f);
|
|
putc(10, fil_f);
|
|
|
|
wal = u3t(wal);
|
|
}
|
|
u3_term_io_loja(0);
|
|
|
|
u3z(wol);
|
|
}
|