[hpoussin] 42526: Improve ARC file infrastructure, by adding a compatibility layer from old to new system (new to old already exists) i386: when reading sectors, use dedicated scratch area Increase number of available open files to 60, because something seems to leak file descriptors

Author: hpoussin
Date: Sat Aug  8 19:04:53 2009
New Revision: 42526

URL: http://svn.reactos.org/svn/reactos?rev=42526&view=rev
Log:
Improve ARC file infrastructure, by adding a compatibility layer from old to new system
(new to old already exists)
i386: when reading sectors, use dedicated scratch area
Increase number of available open files to 60, because something seems to leak file
descriptors

Modified:
    trunk/reactos/boot/freeldr/freeldr/arch/i386/hardware.c
    trunk/reactos/boot/freeldr/freeldr/bootmgr.c
    trunk/reactos/boot/freeldr/freeldr/fs/fs.c
    trunk/reactos/boot/freeldr/freeldr/include/fs.h

Modified: trunk/reactos/boot/freeldr/freeldr/arch/i386/hardware.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/arch/…
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/arch/i386/hardware.c [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/arch/i386/hardware.c [iso-8859-1] Sat Aug  8
19:04:53 2009
@@ -449,19 +449,26 @@
 static LONG DiskRead(ULONG FileId, VOID* Buffer, ULONG N, ULONG* Count)
 {
     DISKCONTEXT* Context = FsGetDeviceSpecific(FileId);
+    UCHAR* Ptr = (UCHAR*)Buffer;
+    ULONG i;
     BOOLEAN ret;
 
     *Count = 0;
     if (N & (Context->SectorSize - 1))
         return EINVAL;
 
-    ret = MachDiskReadLogicalSectors(
-        Context->DriveNumber,
-        Context->SectorNumber + Context->SectorOffset,
-        N / Context->SectorSize,
-        Buffer);
-    if (!ret)
-        return EIO;
+    for (i = 0; i < N / Context->SectorSize; i++)
+    {
+        ret = MachDiskReadLogicalSectors(
+            Context->DriveNumber,
+            Context->SectorNumber + Context->SectorOffset + i,
+            1,
+            (PVOID)DISKREADBUFFER);
+        if (!ret)
+            return EIO;
+        RtlCopyMemory(Ptr, (PVOID)DISKREADBUFFER, Context->SectorSize);
+        Ptr += Context->SectorSize;
+    }
 
     *Count = N;
     return ESUCCESS;

Modified: trunk/reactos/boot/freeldr/freeldr/bootmgr.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/bootm…
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/bootmgr.c [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/bootmgr.c [iso-8859-1] Sat Aug  8 19:04:53 2009
@@ -37,6 +37,13 @@
 		return;
 	}
 
+	// FIXME: if possible, only detect and register ARC devices...
+	if (!MachHwDetect())
+	{
+		UiMessageBoxCritical("Error when detecting hardware");
+		return;
+	}
+
 	if (!IniFileInitialize())
 	{
 		UiMessageBoxCritical("Error initializing .ini file");

Modified: trunk/reactos/boot/freeldr/freeldr/fs/fs.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/fs/fs…
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/fs/fs.c [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/fs/fs.c [iso-8859-1] Sat Aug  8 19:04:53 2009
@@ -1,6 +1,7 @@
 /*
  *  FreeLoader
  *  Copyright (C) 1998-2003  Brian Palmer  &lt;brianp(a)sginet.com&gt;
+ *  Copyright (C) 2008-2009  Hervé Poussineau  &lt;hpoussin(a)reactos.org&gt;
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -33,6 +34,134 @@
 // FUNCTIONS

/////////////////////////////////////////////////////////////////////////////////////////////
 
+static BOOLEAN CompatArcOpenVolume(UCHAR DriveNumber, ULONGLONG VolumeStartSector,
ULONGLONG PartitionSectorCount)
+{
+	//
+	// Always return success
+	//
+	return TRUE;
+}
+
+static FILE* CompatArcOpenFile(PCSTR FileName)
+{
+	CHAR FullPath[MAX_PATH];
+	ULONG FileId;
+	LONG ret;
+
+	//
+	// Create full file name
+	//
+	MachDiskGetBootPath(FullPath, sizeof(FullPath));
+	strcat(FullPath, FileName);
+
+	//
+	// Open the file
+	//
+	ret = ArcOpen(FullPath, OpenReadOnly, &FileId);
+
+	//
+	// Check for success
+	//
+	if (ret == ESUCCESS)
+		return (FILE*)FileId;
+	else
+		return NULL;
+}
+
+static BOOLEAN CompatArcReadFile(FILE *FileHandle, ULONG BytesToRead, ULONG* BytesRead,
PVOID Buffer)
+{
+	ULONG FileId = (ULONG)FileHandle;
+	LONG ret;
+
+	//
+	// Read the file
+	//
+	ret = ArcRead(FileId, Buffer, BytesToRead, BytesRead);
+
+	//
+	// Check for success
+	//
+	if (ret == ESUCCESS)
+		return TRUE;
+	else
+		return FALSE;
+}
+
+ULONG CompatArcGetFileSize(FILE *FileHandle)
+{
+	ULONG FileId = (ULONG)FileHandle;
+	FILEINFORMATION Information;
+	LONG ret;
+
+	//
+	// Query file informations
+	//
+	ret = ArcGetFileInformation(FileId, &Information);
+
+	//
+	// Check for error
+	//
+	if (ret != ESUCCESS || Information.EndingAddress.HighPart != 0)
+		return 0;
+
+	//
+	// Return file size
+	//
+	return Information.EndingAddress.LowPart;
+}
+
+VOID CompatArcSetFilePointer(FILE *FileHandle, ULONG NewFilePointer)
+{
+	ULONG FileId = (ULONG)FileHandle;
+	LARGE_INTEGER Position;
+
+	//
+	// Set file position
+	//
+	Position.HighPart = 0;
+	Position.LowPart = NewFilePointer;
+	ArcSeek(FileId, &Position, SeekAbsolute);
+
+	//
+	// Do not check for error; this function is
+	// supposed to always succeed
+	//
+}
+
+ULONG CompatArcGetFilePointer(FILE *FileHandle)
+{
+	ULONG FileId = (ULONG)FileHandle;
+	FILEINFORMATION Information;
+	LONG ret;
+
+	//
+	// Query file informations
+	//
+	ret = ArcGetFileInformation(FileId, &Information);
+
+	//
+	// Check for error
+	//
+	if (ret != ESUCCESS || Information.CurrentAddress.HighPart != 0)
+		return 0;
+
+	//
+	// Return file pointer position
+	//
+	return Information.CurrentAddress.LowPart;
+}
+
+static const FS_VTBL CompatArcVtbl =
+{
+	CompatArcOpenVolume,
+	CompatArcOpenFile,
+	NULL,
+	CompatArcReadFile,
+	CompatArcGetFileSize,
+	CompatArcSetFilePointer,
+	CompatArcGetFilePointer,
+};
+
 VOID FileSystemError(PCSTR ErrorString)
 {
 	DPRINTM(DPRINT_FILESYSTEM, "%s\n", ErrorString);
@@ -385,7 +514,7 @@
     CompatFsSeek,
 };
 
-#define MAX_FDS 20
+#define MAX_FDS 60
 typedef struct tagFILEDATA
 {
     ULONG DeviceId;
@@ -420,6 +549,7 @@
     {
         FileData[FileId].FuncTable = NULL;
         FileData[FileId].Specific = NULL;
+        FileData[FileId].DeviceId = -1;
     }
     return ret;
 }
@@ -443,6 +573,9 @@
     ULONG dwCount, dwLength;
     OPENMODE DeviceOpenMode;
     ULONG DeviceId;
+
+    /* Print status message */
+    DPRINTM(DPRINT_FILESYSTEM, "Opening file '%s'...\n", Path);
 
     *FileId = MAX_FDS;
 
@@ -535,6 +668,7 @@
 
     /* Open the file */
     FileData[i].FuncTable = FileData[DeviceId].FileFuncTable;
+    FileData[i].DeviceId = DeviceId;
     *FileId = i;
     ret = FileData[i].FuncTable->Open(FileName, OpenMode, FileId);
     if (ret != ESUCCESS)
@@ -590,8 +724,20 @@
     return FileData[FileId].Specific;
 }
 
+ULONG FsGetDeviceId(ULONG FileId)
+{
+    if (FileId >= MAX_FDS)
+        return (ULONG)-1;
+    return FileData[FileId].DeviceId;
+}
+
 VOID FsInit(VOID)
 {
-    memset(FileData, 0, sizeof(FileData));
+    ULONG i;
+
+    RtlZeroMemory(FileData, sizeof(FileData));
+    for (i = 0; i < MAX_FDS; i++)
+        FileData[i].DeviceId = (ULONG)-1;
+
     InitializeListHead(&DeviceListHead);
 }

Modified: trunk/reactos/boot/freeldr/freeldr/include/fs.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/inclu…
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/include/fs.h [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/include/fs.h [iso-8859-1] Sat Aug  8 19:04:53 2009
@@ -29,14 +29,10 @@
   ARC_SEEK Seek;
 } DEVVTBL;
 
-//#define	EOF				-1
-
 #define	FS_FAT			1
 #define	FS_NTFS			2
 #define	FS_EXT2			3
-#define FS_REISER		4
 #define FS_ISO9660		5
-#define FS_PXE			6
 
 #define FILE			VOID
 #define PFILE			FILE *
@@ -44,6 +40,7 @@
 VOID FsRegisterDevice(CHAR* Prefix, const DEVVTBL* FuncTable);
 VOID FsSetDeviceSpecific(ULONG FileId, VOID* Specific);
 VOID* FsGetDeviceSpecific(ULONG FileId);
+ULONG FsGetDeviceId(ULONG FileId);
 VOID FsInit(VOID);
 
 LONG ArcClose(ULONG FileId);