+/*
+ * Acess2 Logical Volume Manager
+ * - By John Hodge (thePowersGang)
+ *
+ * volumes.c
+ * - Volume management
+ */
+#include "lvm_int.h"
+
+// === PROTOTYPES ===
+ int LVM_int_VFSReadEmul(void *Arg, Uint64 BlockStart, size_t BlockCount, void *Dest);
+ int LVM_int_VFSWriteEmul(void *Arg, Uint64 BlockStart, size_t BlockCount, const void *Source);
+
+// === CODE ===
+// --------------------------------------------------------------------
+// Managment / Initialisation
+// --------------------------------------------------------------------
+int LVM_AddVolumeVFS(const char *Name, int FD)
+{
+ return LVM_AddVolume(Name, (void*)(Uint)FD, LVM_int_VFSReadEmul, LVM_int_VFSWriteEmul);
+}
+
+int LVM_AddVolume(const char *Name, void *Ptr, tLVM_ReadFcn Read, tLVM_WriteFcn Write)
+{
+ tLVM_Vol dummy_vol;
+// tLVM_Vol *real_vol;
+
+ dummy_vol.Ptr = Ptr;
+ dummy_vol.Read = Read;
+ dummy_vol.Write = Write;
+
+ // Determine Type
+
+ // Type->CountSubvolumes
+
+ // Create real volume descriptor
+
+ // Type->PopulateSubvolumes
+
+ // Add to volume list
+
+ return 0;
+}
+
+void LVM_int_SetSubvolume_Anon(tLVM_Vol *Volume, int Index, Uint64 FirstBlock, Uint64 BlockCount)
+{
+ tLVM_SubVolume *sv;
+ int namelen;
+
+ if( Index < 0 || Index >= Volume->nSubVolumes ) {
+ Log_Warning("LVM", "SV ID is out of range (0 < %i < %i)",
+ Index, Volume->nSubVolumes);
+ return ;
+ }
+
+ if( Volume->SubVolumes[Index] ) {
+ Log_Warning("LVM", "Attempt to set SV %i of %p twice", Index, Volume);
+ return ;
+ }
+
+ namelen = snprintf(NULL, 0, "%i", Index);
+
+ sv = malloc( sizeof(tLVM_SubVolume) + namelen + 1 );
+ if(!sv) {
+ // Oh, f*ck
+ return ;
+ }
+ Volume->SubVolumes[Index] = sv;
+
+ sv->Vol = Volume;
+ sprintf(sv->Name, "%i", Index);
+ sv->FirstBlock = FirstBlock;
+ sv->BlockCount = BlockCount;
+ memset(&sv->Node, 0, sizeof(tVFS_Node));
+
+ sv->Node.ImplPtr = sv;
+ sv->Node.Type = &gLVM_SubVolNodeType;
+}
+
+// --------------------------------------------------------------------
+// IO
+// --------------------------------------------------------------------
+size_t LVM_int_ReadVolume(tLVM_Vol *Volume, Uint64 BlockNum, size_t BlockCount, void *Dest)
+{
+ return Volume->Read(Volume->Ptr, BlockNum, BlockCount, Dest);
+}
+
+size_t LVM_int_WriteVolume(tLVM_Vol *Volume, Uint64 BlockNum, size_t BlockCount, const void *Src)
+{
+ return Volume->Write(Volume->Ptr, BlockNum, BlockCount, Src);
+}
+
+int LVM_int_VFSReadEmul(void *Arg, Uint64 BlockStart, size_t BlockCount, void *Dest)
+{
+ size_t blocksize;
+ size_t rv;
+
+ blocksize = 512; // TODO: Don't assume
+
+ rv = VFS_ReadAt( (int)(Uint)Arg, BlockStart * blocksize, BlockCount * blocksize, Dest );
+ rv /= blocksize;
+ return rv;
+}
+
+int LVM_int_VFSWriteEmul(void *Arg, Uint64 BlockStart, size_t BlockCount, const void *Source)
+{
+ size_t blocksize;
+ size_t rv;
+
+ blocksize = 512; // TODO: Don't assume
+
+ rv = VFS_WriteAt( (int)(Uint)Arg, BlockStart * blocksize, BlockCount * blocksize, Source );
+ rv /= blocksize;
+ return rv;
+}
+