// === CONSTANTS ===
#define MAX_FILES 64
+#define MAX_FILE_SIZE 1024
// === PROTOTYPES ===
tVFS_Node *Root_InitDevice(const char *Device, const char **Options);
Uint64 Root_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
{
tRamFS_File *file = Node->ImplPtr;
+ ENTER("pNode XOffset XLength pBuffer", Node, Offset, Length, Buffer);
- if(Offset > Node->Size) return 0;
- if(Length > Node->Size) return 0;
+ if(Offset > Node->Size) {
+ LEAVE('i', 0);
+ return 0;
+ }
+ if(Length > Node->Size) Length = Node->Size;
if(Offset+Length > Node->Size)
Length = Node->Size - Offset;
memcpy(Buffer, file->Data.Bytes+Offset, Length);
-
+ LOG("Buffer = '%.*s'", (int)Length, Buffer);
+
+ LEAVE('i', Length);
return Length;
}
Uint64 Root_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
{
tRamFS_File *file = Node->ImplPtr;
+
+ ENTER("pNode XOffset XLength pBuffer", Node, Offset, Length, Buffer);
+
+ if(Offset > Node->Size) {
+ LEAVE('i', -1);
+ return -1;
+ }
+
+ if(Offset + Length > MAX_FILE_SIZE)
+ {
+ Length = MAX_FILE_SIZE - Offset;
+ }
+
+ LOG("Buffer = '%.*s'", (int)Length, Buffer);
// Check if buffer needs to be expanded
if(Offset + Length > Node->Size)
void *tmp = realloc( file->Data.Bytes, Offset + Length );
if(tmp == NULL) {
Warning("Root_Write - Increasing buffer size failed");
+ LEAVE('i', -1);
return -1;
}
file->Data.Bytes = tmp;
Node->Size = Offset + Length;
- //LOG("Expanded buffer to %i bytes", Node->Size);
+ LOG("Expanded buffer to %i bytes", (int)Node->Size);
}
memcpy(file->Data.Bytes+Offset, Buffer, Length);
+ LOG("File - '%.*s'", Node->Size, file->Data.Bytes);
+ LEAVE('i', Length);
return Length;
}