foolsnake showcasing multithreading and our console

1 files changed, 55 insertions, 0 deletions

diff --git a/userspace/snake2.c b/userspace/snake2.c
new file mode 100644
index 0000000..78be50d
--- /dev/null
+++ b/userspace/snake2.c
@@ -0,0 +1,55 @@
+#include <stdio.h>
+
+int data4[100];
+
+// syscall will be move to newlib?
+#define SYSCALL_CLONE 83
+
+int _clone(void)
+{
+    return syscall(SYSCALL_CLONE,0,0,0);
+}
+
+static char lastc='d';
+
+int main()
+{
+    printf("setvbuf returned %i\n",setvbuf(stdin,NULL,_IONBF,0));
+    printf("setvbuf returned %i\n",setvbuf(stdout,NULL,_IONBF,0));
+
+    printf("\033c");
+    printf("\033HFOOL-SNAKE");
+    //printf("\033d\033d\033dFOOL-SNAKE");
+    printf("\033d");
+    char snake[]="FOOLSNAKESFOOL";
+
+    int thr=_clone();
+    if(thr==0)
+    {
+	uint64_t x=0;
+
+	while(1)
+	{
+	    for(int i=0;i<10000000;i++);
+
+	    x++;
+	    if(lastc=='d')printf("\033f");
+	    if(lastc=='a')printf("\033b");
+	    if(lastc=='w')printf("\033u");
+	    if(lastc=='s')printf("\033d");
+
+	    printf("\033[0;%im\033b%c",31+(uint8_t)(x%6),snake[x%10]);
+
+	}
+	
+    }
+    else
+    {
+	while(1)
+	{
+	    char c=fgetc(stdin);
+	    lastc=c;
+	}
+    }
+
+}