From d5027bff5005ba1b4b92f64bebeea673fd538523 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Wed, 13 Oct 2021 21:52:17 +0200
Subject: init/shell: show the current "fork depth" in the prompt
---
src/init/shell.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
(limited to 'src/init')
diff --git a/src/init/shell.c b/src/init/shell.c
index 6e1dee2..130ae79 100644
--- a/src/init/shell.c
+++ b/src/init/shell.c
@@ -2,8 +2,6 @@
#include <init/stdlib.h>
#include <shared/syscalls.h>
-#define PROMPT "$ "
-
static char *split(char *base) {
while (*base) {
if (*base == ' ' || *base == '\t') {
@@ -60,10 +58,11 @@ static void cmd_cat(const char *args) {
void shell_loop(void) {
static char cmd[256];
+ int level = 0;
char *args;
for (;;) {
- printf(PROMPT);
+ printf("%x$ ", level);
readline(cmd, 256);
args = split(cmd);
if (!strcmp(cmd, "echo")) {
@@ -75,6 +74,7 @@ void shell_loop(void) {
} else if (!strcmp(cmd, "fork")) {
if (_syscall_fork())
_syscall_await();
+ else level++;
} else {
printf("unknown command :(\n");
}
--
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