ref: 67d9c6b2f98888dc81154b0499bbd26171f908a6
parent: 29411f58cfa62a7d05713070338d82b722364665
author: cinap_lenrek <cinap_lenrek@felloff.net>
date: Fri Oct 20 16:31:30 EDT 2017
vt: block when sending input to host (fixes truncated paste)
--- a/sys/src/cmd/vt/cons.h
+++ b/sys/src/cmd/vt/cons.h
@@ -7,14 +7,6 @@
};
extern Consstate cs[];
-typedef struct Buf Buf;
-struct Buf
-{- int n;
- char *s;
- char b[];
-};
-
#define INSET 2
#define BUFS 32
#define HISTSIZ (64*1024) /* number of history characters */
--- a/sys/src/cmd/vt/fs.c
+++ b/sys/src/cmd/vt/fs.c
@@ -19,17 +19,16 @@
fsreader(void*)
{Req *r, *fr;
- Buf *b;
- int n;
+ char *s, *p;
- b = nil;
r = nil;
+ s = p = nil;
for(;;){ Alt a[] = { { flushreq, &fr, CHANRCV }, { readreq, &r, r == nil ? CHANRCV : CHANNOP },- { hc[0], &b, b == nil ? CHANRCV : CHANNOP },- { nil, nil, b == nil || r == nil ? CHANEND : CHANNOBLK },+ { hc[0], &s, s == nil ? CHANRCV : CHANNOP },+ { nil, nil, s == nil || r == nil ? CHANEND : CHANNOBLK },};
if(alt(a) == 0){ if(fr->oldreq == r){@@ -38,18 +37,18 @@
}
respond(fr, nil);
}
- if(b == nil || r == nil)
+ if(s == nil || r == nil)
continue;
+ if(p == nil)
+ p = s;
r->ofcall.count = 0;
- while((n = r->ifcall.count - r->ofcall.count) > 0){- if(n > b->n)
- n = b->n;
- memmove((char*)r->ofcall.data + r->ofcall.count, b->s, n);
- r->ofcall.count += n;
- b->s += n, b->n -= n;
- if(b->n <= 0){- free(b);
- if((b = nbrecvp(hc[0])) == nil)
+ while(r->ifcall.count > r->ofcall.count){+ if(*p == 0)
+ break;
+ r->ofcall.data[r->ofcall.count++] = *p++;
+ if(*p == 0){+ free(s);
+ if((p = s = nbrecvp(hc[0])) == nil)
break;
}
}
--- a/sys/src/cmd/vt/main.c
+++ b/sys/src/cmd/vt/main.c
@@ -122,6 +122,7 @@
int hostpid = -1;
Biobuf *snarffp = 0;
Rune *hostbuf, *hostbufp;
+char *hostin;
char echo_input[BSIZE];
char *echop = echo_input; /* characters to echo, after canon */
char sendbuf[BSIZE]; /* hope you can't type ahead more than BSIZE chars */
@@ -138,6 +139,7 @@
void readmenu(void);
void selection(void);
void resize(void);
+void drawcursor(void);
void send_interrupt(void);
int alnum(int);
void escapedump(int,uchar *,int);
@@ -183,12 +185,17 @@
void
sendnchars(int n, char *p)
{- Buf *b;
-
- b = emalloc9p(sizeof(Buf)+n);
- memmove(b->s = b->b, p, b->n = n);
- if(nbsendp(hc[0], b) < 0)
- free(b);
+ hostin = smprint("%.*s", n, p);+ while(hostin != nil){+ if(nbsendp(hc[0], hostin)){+ hostin = nil;
+ break;
+ }
+ drawcursor();
+ waitio();
+ if(resize_flag)
+ resize();
+ }
}
static void
@@ -263,7 +270,7 @@
if((kc = initkeyboard("/dev/cons")) == nil) sysfatal("initkeyboard failed: %r");- hc[0] = chancreate(sizeof(Buf*), 8); /* input to host */
+ hc[0] = chancreate(sizeof(char*), 256); /* input to host */
hc[1] = chancreate(sizeof(Rune*), 8); /* output from host */
cs->raw = rflag;
@@ -405,7 +412,7 @@
if(cursoron == 0)
return;
- col = (blocked || hostclosed) ? red : bordercol;
+ col = (hostin != nil || blocked || hostclosed) ? red : bordercol;
r = Rpt(pt(x, y), pt(x+1, y+1));
cursorsave = allocimage(display, r, screen->chan, 0, DNofill);
@@ -745,18 +752,23 @@
void
waitio(void)
{- enum { AMOUSE, ARESIZE, AKBD, AHOST, AEND, };+ enum { AMOUSE, ARESIZE, AKBD, AHOSTIN, AHOSTOUT, AEND, }; Alt a[AEND+1] = { { mc->c, &mc->Mouse, CHANRCV }, { mc->resizec, nil, CHANRCV }, { kc->c, &kbdchar, CHANRCV },+ { hc[0], &hostin, CHANSND }, { hc[1], &hostbuf, CHANRCV }, { nil, nil, CHANEND },};
+ if(kbdchar != 0)
+ a[AKBD].op = CHANNOP;
+ if(hostin == nil)
+ a[AHOSTIN].op = CHANNOP;
if(blocked)
- a[AHOST].op = CHANNOP;
+ a[AHOSTOUT].op = CHANNOP;
else if(hostbuf != nil)
- a[AHOST].op = CHANNOBLK;
+ a[AHOSTOUT].op = CHANNOBLK;
Next:
if(display->bufp > display->buf)
flushimage(display, 1);
@@ -772,7 +784,10 @@
case ARESIZE:
resize_flag = 2;
break;
- case AHOST:
+ case AHOSTIN:
+ hostin = nil;
+ break;
+ case AHOSTOUT:
hostbufp = hostbuf;
if(hostbuf == nil)
hostclosed = 1;