rewrite init to restart failed processes, add file renaming, directory creation, directory renaming, directory removal, add process killing, unify shells, readme changes.

code/kernel/ke_process.c

@@ -25,6 +25,7 @@ static void ProcessInit(void) {
 }
 
 LIST_ENTRY* KeGetProcessList(void) {
+    ProcessInit();
     return &gProcessList;
 }
 
@@ -36,6 +37,21 @@ PROCESS* KeGetCurrentProcess(void) {
     return NULL;
 }
 
+size_t KeCopyProcessIds(uint32_t* pidsOut, size_t maxCount) {
+    ProcessInit();
+
+    uintptr_t flags = KeAcquireSpinlock(&gProcessListLock);
+    size_t count = 0;
+    LIST_ENTRY* head = &gProcessList;
+    for (LIST_ENTRY* node = head->Fwd; node != head; node = node->Fwd) {
+        PROCESS* p = CONTAINING_RECORD(node, PROCESS, GlobalLink);
+        if (pidsOut && count < maxCount) pidsOut[count] = p->ProcessId;
+        count++;
+    }
+    KeReleaseSpinlock(&gProcessListLock, flags);
+    return count;
+}
+
 // ---------------------------------------------------------------------------
 // Destructor (called by ObDereferenceObject when RefCount hits zero)
 // ---------------------------------------------------------------------------
@@ -206,6 +222,7 @@ OBJECT* KeLookupHandle(PROCESS* process, uint32_t handle) {
 }
 
 PROCESS* KeGetProcessById(uint32_t pid) {
+    ProcessInit();
     uintptr_t flags = KeAcquireSpinlock(&gProcessListLock);
     LIST_ENTRY* head = &gProcessList;
     LIST_ENTRY* node = head->Fwd;