test map/unmap

user/app1/appl.cc

@@ -1,6 +1,44 @@
 // vim: set noet ts=4 sw=4:
 
 #include "../libsys/stub.h"
+#include "../libsys/string.h"
+
+char* itoh(unsigned int value, char* buffer) {
+    char* ptr = &buffer[11];
+    *ptr = '\0'; // Nullterminator am Ende setzen
+
+    if (value == 0) {
+        *--ptr = '0';
+        return ptr;
+    }
+
+    do {
+        ptr--;
+        *ptr = '0' + (value % 16);
+		if(*ptr >= 0x3A)
+			*ptr+=7;
+        value /= 16;
+    } while (value != 0);
+
+    return ptr;
+}
+char* itoa(unsigned int value, char* buffer) {
+    char* ptr = &buffer[11];
+    *ptr = '\0'; // Nullterminator am Ende setzen
+
+    if (value == 0) {
+        *--ptr = '0';
+        return ptr;
+    }
+
+    do {
+        ptr--;
+        *ptr = '0' + (value % 10);
+        value /= 10;
+    } while (value != 0);
+
+    return ptr;
+}
 
 extern "C" void main() {
 	// Thread 1 may be an auxiliary thread
@@ -10,31 +48,29 @@ extern "C" void main() {
 	unsigned id = sys_getpid();
 	char text[] = "appX";
 	text[3] = 0x30+id;
-	char buf = 32;
 
 	write(1, text, sizeof(text), 0, (int)id);
 
 	uint8_t cnt = 0;
 	for (unsigned i = 1;; ++i) {
-		char msg[5];
-		msg[0] = 0x30+cnt;
-		msg[1] = 0;
-		cnt=(cnt+1)%10;
-		write(1, msg, 1, 6, (int)id);
-		void* ptr= map(512);
 
-		//sprintf(&buf, "ptr address: %x \n" , ptr);
-		//unmap(ptr, 512);
+		//counter to see app running
+		cnt=(cnt+1)%100;
+		char buf[12];
+		char* msg = itoa(cnt,buf);
+		write(1, msg, strlen(msg), 6, (int)id);
 
+		// test map/unmap and print ptr
+		void* ptr= map(4096);
+		uint16_t* val = ((uint16_t*)ptr);
+		*val = 0x1337;
 
-		//if(i==id){
-		//	//write(2, "kill", 4);
-		//	//write(2, &text[4], 1);
-		//	//write(2, " ", 1);
-		//	sys_exit();
-		//}
-		sleep(1000);
-		if(id == 2)
+		msg = itoh((uintptr_t)ptr,buf);
+		write(1, msg, strlen(msg), 12, (int)id);
+		unmap(ptr, 4096);
+
+		sleep(100);
+		if(id == 4)
 			*reinterpret_cast<uint8_t*>(0xdeadbeaf) = 1;
 	}
 }