getpid

kernel/syscall/skeleton.cc

@@ -9,6 +9,9 @@
 
 void *operator new(size_t, void *);
 
+#include "../user/app1/appl.h"
+extern Application apps[];
+
 namespace Syscall {
 namespace Skeleton {
 size_t test(Vault &vault, size_t p1, size_t p2, size_t p3, size_t p4,
@@ -20,8 +23,10 @@ size_t test(Vault &vault, size_t p1, size_t p2, size_t p3, size_t p4,
 }
 
 int getpid(Vault &vault) {
-	(void)vault;
-	return -1;
+	Thread *me = vault.scheduler.active();
+	unsigned id = 0;
+	while (&apps[id++] != me); // TODO find better pid source
+    return id;
 }
 
 size_t write(Vault &vault, uint32_t id, const void *buffer, size_t size, int x, int y) {
@@ -45,6 +50,8 @@ size_t write(Vault &vault, uint32_t id, const void *buffer, size_t size, int x,
 }
 
 size_t read(Vault &vault, uint32_t id, void *buf, size_t len) {
+    (void)id;
+
     size_t read_cnt = 0;
     while(read_cnt <= len){
         Key key;