Changeset 867

Timestamp:

09/01/08 18:29:59 (3 years ago)

Author:

mwhitworth

Message:

Add configfs functions.

Files:

• Whitix/trunk/fs/infofs/configfs.c (modified) (2 diffs)

Whitix/trunk/fs/infofs/configfs.c

@@ -6 +6 @@
 #include <fs/icfs.h>
 #include <fs/vfs.h>
+
+DWORD ConfigGetRootId();
+int IcFsRead(struct File* file, BYTE* data, DWORD size);
+int IcFsReadDir(struct File* file, void* dirEntries);
+int IcFsFollowLink(struct VNode** ret, struct VNode* vNode);
+
+int ConfigLookup(struct VNode** retVal,struct VNode* dir,char* name,int nameLength)
+{
+        struct KeFsEntry* entry;
+        
+        entry=KeFsLookup(dir, name, nameLength);
+        
+        if (!entry)
+                return -ENOENT;
+                
+        *retVal=VNodeGet(dir->superBlock, (DWORD)entry);
+        
+        return 0;
+}
+
+int ConfigWriteInt(struct File* file, struct IcFsEntry* iEnt, char* data, DWORD size)
+{
+        int copied;
+        
+        copied=MIN(size-file->position, sizeof(int)-file->position);
+        
+        memcpy(iEnt->iVal+file->position, data, copied);
+        
+        file->position+=copied;
+        
+        return copied;
+}
+
+int ConfigWrite(struct File* file, BYTE* data, DWORD size)
+{
+        struct KeFsEntry* entry=(struct KeFsEntry*)(file->vNode->id);
+        struct IcFsEntry* iEnt=(struct IcFsEntry*)(entry->file);
+        
+        switch (iEnt->type)
+        {
+                case ICFS_TYPE_INT:
+                        return ConfigWriteInt(file, iEnt, data, size);
+                        
+//              case ICFS_TYPE_STR:
+//                      return InfoReadStr(file, iEnt, data, size);
+                        
+                default:
+                        KePrint("TODO: %d\n", iEnt->type);
+        }
+        
+        return 0;
+}
+
+struct VNodeOps configFsVOps=
+{
+        .lookup=ConfigLookup,
+        .followLink=IcFsFollowLink,
+};
+
+struct FileOps configFsFileOps=
+{
+        .read = IcFsRead,
+        .readDir=IcFsReadDir,
+        .write = ConfigWrite
+};
+
+int ConfigReadVNode(struct VNode* vNode)
+{
+        struct KeFsEntry* entry=(struct KeFsEntry*)(vNode->id);
+
+        IcFsReadVNode(vNode);
+        
+        vNode->vNodeOps=&configFsVOps;
+        vNode->fileOps=&configFsFileOps;
+
+        return 0;
+}
+
+struct SuperBlockOps configFsSbOps=
+{
+        .readVNode = ConfigReadVNode,
+};
 
 struct VfsSuperBlock* ConfigReadSuper(struct StorageDevice* dev, int flags, char* data)
@@ -20 +102 @@
                 
         ret->privData=NULL;
-#if 0
-        ret->sbOps=&configFsSbOps;
-        
-        ret->mount=VNodeGet(ret, (DWORD)InfoGetRootId());
-#endif          
+        ret->sbOps=&configFsSbOps;      
+        ret->mount=VNodeGet(ret, (DWORD)ConfigGetRootId());
+
 end:
         return ret;