iDunnoDev/xv6-custom-os
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Changed console to write to both the buffer and the screen if currently active

Browse Source
This commit is contained in:
iDunnoDev
2022-12-12 16:40:38 +00:00
committed by iDunnoDev
parent 05c1a1fe28
commit 5b21654261
4 changed files with 107 additions and 65 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
Makefile
View File

@ -223,8 +223,8 @@ QEMUGDB = $(shell if $(QEMU) -help | grep -q '^-gdb'; \
then echo "-gdb tcp::$(GDBPORT)"; \
else echo "-s -p $(GDBPORT)"; fi)
ifndef CPUS
#CPUS := 2
CPUS := 1
CPUS := 2
#CPUS := 1
endif
QEMUOPTS = -drive file=fs.img,index=1,media=disk,format=raw -drive file=xv6.img,index=0,media=disk,format=raw -smp $(CPUS) -m 512 $(QEMUEXTRA)

96
console.c
View File

@ -29,6 +29,8 @@ struct kbdbuffer inputBuffer;
struct kbdbuffer * input = 0;
struct vconsole {
struct spinlock lock;
struct proc* processowner;
ushort screenbuffer[SCRWIDTH * SCRHEIGHT];
struct kbdbuffer keybuffer;
int pos;
@ -36,6 +38,7 @@ struct vconsole {
};
struct vconsole consoles[MAXVCONSOLES];
struct vconsole* currentconsole = 0;
static uint currentconsoleindex = 0;
#define C(x) ((x) - '@') // Control-x
@ -171,28 +174,40 @@ static void cgaputc(int c) {
// Check if a process has actually been created otherwise use the base console
if (myproc() != 0x0)
{
consoleindex = currentconsoleindex; //myproc()->consoleIndex;
consoleindex = myproc()->consoleIndex;
}
//ushort* currentbuffer = consoles[consoleindex].screenbuffer;
ushort* currentbuffer = consoles[consoleindex].screenbuffer;
if (consoleindex == currentconsoleindex)
{
// Cursor position: col + 80*row.
outb(CRTPORT, 14);
pos = inb(CRTPORT + 1) << 8;
outb(CRTPORT, 15);
pos |= inb(CRTPORT + 1);
}
else
{
pos = consoles[consoleindex].pos;
}
if (c == '\n') {
pos += SCRWIDTH - pos % SCRWIDTH;
}
else if (c == BACKSPACE) {
if (pos > (TITLEOFF)) {
//currentbuffer[pos] = 0; // Clear the character from the buffer
currentbuffer[pos] = 0; // Clear the character from the buffer
--pos;
}
}
else {
//currentbuffer[pos++] = (c & 0xff) | 0x0700; // black on white
crt[pos++] = (c & 0xff) | 0x0700; // black on white
//int posp = pos;
if (consoleindex == currentconsoleindex)
{
crt[pos] = (c & 0xff) | 0x0700; // black on white
}
currentbuffer[pos] = (c & 0xff) | 0x0700; // black on white
pos++;
}
if (pos < TITLEOFF || pos > SCRHEIGHT * SCRWIDTH) {
@ -200,17 +215,25 @@ static void cgaputc(int c) {
}
if ((pos / 80) >= 24) { // Scroll up.
memmove(crt + TITLEOFF, crt + (SCRWIDTH + TITLEOFF), sizeof(crt[0]) * (SCRHEIGHT - 1) * SCRWIDTH);
memmove(currentbuffer + TITLEOFF, currentbuffer + (SCRWIDTH + TITLEOFF), sizeof(crt[0]) * (SCRHEIGHT - 1) * SCRWIDTH);
pos -= 80;
memset(currentbuffer + pos, 0, sizeof(crt[0]) * (SCRHEIGHT * SCRWIDTH - pos));
if (consoleindex == currentconsoleindex)
{
memmove(crt + TITLEOFF, crt + (SCRWIDTH + TITLEOFF), sizeof(crt[0]) * (SCRHEIGHT - 1) * SCRWIDTH);
memset(crt + pos, 0, sizeof(crt[0]) * (SCRHEIGHT * SCRWIDTH - pos));
}
}
consoles[consoleindex].pos = pos;
if (consoleindex == currentconsoleindex)
{
outb(CRTPORT, 14);
outb(CRTPORT + 1, pos >> 8);
outb(CRTPORT, 15);
outb(CRTPORT + 1, pos);
crt[pos] = ' ' | 0x0700;
}
}
void consputc(int c) {
@ -292,6 +315,7 @@ void consoleintr(int (*getc)(void)) {
}
}
release(&cons.lock);
if (doprocdump) {
procdump(); // now call procdump() wo. cons.lock held
}
@ -392,7 +416,7 @@ void testfillbuffer(ushort *bufferin)
void clearconsole(ushort *bufferin)
{
// Flood the screen buffer with blank spaces
memset(bufferin, 0x0700, sizeof(bufferin[0]) * SCRHEIGHT * SCRWIDTH);
memset(bufferin, 0, sizeof(bufferin[0]) * SCRHEIGHT * SCRWIDTH);
}
void loadscreenbuffer(ushort *bufferin)
@ -411,32 +435,46 @@ void clearscreen(void)
{
//cprintf("process id: %d", myproc()->consoleIndex);
//return;
//cprintf("size of buffer item: %d\n", sizeof(consoles[currentconsoleindex].screenbuffer[0]) * (SCRHEIGHT * SCRWIDTH));
//cprintf("size of crt item: %d\n", sizeof(crt[0]) * (SCRHEIGHT * SCRWIDTH));
//return;
int consoleindex = 0;
// Check if a process has actually been created otherwise use the base console
if (myproc() != 0x0)
{
consoleindex = myproc()->consoleIndex;
}
if (consoleindex == currentconsoleindex)
{
acquire(&cons.lock);
int pos = TITLEOFF;
//testfillbuffer(consoles[currentconsoleindex].screenbuffer);
clearconsole(consoles[currentconsoleindex].screenbuffer);
clearconsole(crt);
//loadscreenbuffer(consoles[currentconsoleindex].screenbuffer);
release(&cons.lock);
consoles[currentconsoleindex].pos = pos;
currentconsole->pos = pos;
outb(CRTPORT, 14);
outb(CRTPORT + 1, pos >> 8);
outb(CRTPORT, 15);
outb(CRTPORT + 1, pos);
}
else
{
}
}
void consoleinit(void) {
initlock(&cons.lock, "console");
consoles[currentconsoleindex].active = 1;
// Initialise pointer to point to our console input buffer
input = &consoles[currentconsoleindex].keybuffer;
currentconsole = &consoles[currentconsoleindex];
currentconsole->active = 1;
initlock(&currentconsole->lock, "vconsole0");
input = &currentconsole->keybuffer;
devsw[CONSOLE].write = consolewrite;
devsw[CONSOLE].read = consoleread;
@ -468,32 +506,35 @@ int switchtoconsole(int consoleindex)
{
int pos;
outb(CRTPORT, 14);
/*outb(CRTPORT, 14);
pos = inb(CRTPORT + 1) << 8;
outb(CRTPORT, 15);
pos |= inb(CRTPORT + 1);
pos |= inb(CRTPORT + 1);*/
consoles[currentconsoleindex].pos = pos;
//consoles[currentconsoleindex].pos = pos;
savescreenbuffer(consoles[currentconsoleindex].screenbuffer);
//savescreenbuffer(consoles[currentconsoleindex].screenbuffer);
//acquire(&cons.lock);
//acquire(&currentconsole->lock);
//sleep(&(currentconsole), &currentconsole->lock);
acquire(&cons.lock);
currentconsoleindex = consoleindex;
input = &consoles[currentconsoleindex].keybuffer;
currentconsole = &consoles[currentconsoleindex];
input = &currentconsole->keybuffer;
//ioapicenable(IRQ_KBD, 0);
//release(&cons.lock);
loadscreenbuffer(consoles[consoleindex].screenbuffer);
loadscreenbuffer(currentconsole->screenbuffer);
release(&cons.lock);
if (!consoles[currentconsoleindex].active)
if (!currentconsole->active)
{
clearscreen();
cprintf("Welcome to Console: %d\n", currentconsoleindex);
consoles[currentconsoleindex].active = 1;
currentconsole->active = 1;
}
else
{
pos = consoles[consoleindex].pos;
pos = currentconsole->pos;
outb(CRTPORT, 14);
outb(CRTPORT + 1, pos >> 8);
@ -501,13 +542,14 @@ int switchtoconsole(int consoleindex)
outb(CRTPORT + 1, pos);
}
//wakeup(myproc()->chan);
return 0;
}
int closeconsole(int consoleindex)
{
clearconsole(consoles[currentconsoleindex].screenbuffer);
consoles[currentconsoleindex].active = 0;
clearconsole(currentconsole->screenbuffer);
currentconsole->active = 0;
switchtoconsole(0);
return 0;
}

1
param.h
View File

@ -11,6 +11,7 @@
#define LOGSIZE (MAXOPBLOCKS*3) // max data blocks in on-disk log
#define NBUF (MAXOPBLOCKS*3) // size of disk block cache
#define FSSIZE 1000 // size of file system in blocks
#define MAXVCONSOLES 10 // Max number of consoles that can be open
#define SCRWIDTH 80 // Numbers of characters across the screen
#define SCRHEIGHT 25 // Number of lines down the screen

1
sysproc.c
View File

@ -134,7 +134,6 @@ int sys_screen(void)
{
curproc->consoleIndex = consoleindex;
switchtoconsole(consoleindex);
wakeup(myproc()->chan);
result = 1;
}
return result;