HCR-13 : Optimize filesystem operations on UEFI.

- Stream concept, on demand.

Signed-off-by: Amlal El Mahrouss <amlalelmahrouss@icloud.com>

5 files changed, 56 insertions, 12 deletions

diff --git a/Private/KernelKit/FileManager.hpp b/Private/KernelKit/FileManager.hpp
index d31cdf68..fea63a0a 100644
--- a/Private/KernelKit/FileManager.hpp
+++ b/Private/KernelKit/FileManager.hpp
@@ -232,6 +232,8 @@ class FileStream final {
 using FileStreamUTF8 = FileStream<char>;
 using FileStreamUTF16 = FileStream<wchar_t>;
 
+typedef UInt64 CursorType;
+
 template <typename Encoding, typename Class>
 FileStream<Encoding, Class>::FileStream(const Encoding *path,
                                         const Encoding *restrict_type)
diff --git a/Private/KernelKit/MSDOS.hpp b/Private/KernelKit/MSDOS.hpp
new file mode 100644
index 00000000..021d62aa
--- /dev/null
+++ b/Private/KernelKit/MSDOS.hpp
@@ -0,0 +1,44 @@
+/* -------------------------------------------
+
+    Copyright Mahrouss Logic
+
+    File: MSDOS.hpp
+    Purpose: MS-DOS header for HCore.
+
+    Revision History:
+
+    30/01/24: Added file (amlel)
+
+------------------------------------------- */
+
+#ifndef __MSDOS_EXEC__
+#define __MSDOS_EXEC__
+
+#include <NewKit/Defines.hpp>
+
+typedef HCore::UInt32 DosWord;
+typedef HCore::Long DosLong;
+
+typedef struct _DosHeader {
+  DosWord eMagic;
+  DosWord eMagLen;
+  DosWord ePagesCount;
+  DosWord eCrlc;
+  DosWord eCParHdr;
+  DosWord eMinAlloc;
+  DosWord eMaxAlloc;
+  DosWord eStackSeg;
+  DosWord eStackPtr;
+  DosWord eChksum;
+  DosWord eIp;
+  DosWord eCs;
+  DosWord eLfarlc;
+  DosWord eOvno;
+  DosWord eRes[4];
+  DosWord eOemid;
+  DosWord eOeminfo;
+  DosWord eRes2[10];
+  DosLong eLfanew;
+} DosHeader, *DosHeaderPtr;
+
+#endif /* ifndef __MSDOS_EXEC__ */
diff --git a/Private/KernelKit/PE.hpp b/Private/KernelKit/PE.hpp
index 88ee319a..6cc0ff60 100644
--- a/Private/KernelKit/PE.hpp
+++ b/Private/KernelKit/PE.hpp
@@ -27,7 +27,7 @@ typedef char CHAR;
 #define kPeMagic 0x00004550
 
 typedef struct ExecHeader final {
-  U32 mMagic;  // PE\0\0 or 0x00004550
+  U8 mMagic[4];  // PE\0\0 or 0x00004550
   U16 mMachine;
   U16 mNumberOfSections;
   U32 mTimeDateStamp;
diff --git a/Private/KernelKit/ProcessManager.hpp b/Private/KernelKit/ProcessManager.hpp
index 52c3e7b3..ddde3d3c 100644
--- a/Private/KernelKit/ProcessManager.hpp
+++ b/Private/KernelKit/ProcessManager.hpp
@@ -17,7 +17,7 @@
 #include <NewKit/MutableArray.hpp>
 #include <NewKit/UserHeap.hpp>
 
-#define kMinMicroTime AffinityKind::kStandard
+#define kMinMicroTime AffinityKind::kHartStandard
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
@@ -48,7 +48,7 @@ enum class AffinityKind : Int32 {
   kInvalid = 300,
   kVeryHigh = 250,
   kHigh = 200,
-  kStandard = 150,
+  kHartStandard = 150,
   kLowUsage = 100,
   kVeryLowUsage = 50,
 };
diff --git a/Private/KernelKit/SMPManager.hpp b/Private/KernelKit/SMPManager.hpp
index 8cbe3259..dc3518a7 100644
--- a/Private/KernelKit/SMPManager.hpp
+++ b/Private/KernelKit/SMPManager.hpp
@@ -22,13 +22,13 @@ namespace HCore {
 using ThreadID = UInt32;
 
 enum ThreadKind {
-  kSystemReserved,  // System reserved thread, well user can't use it
-  kStandard,        // user thread, cannot be used by kernel
-  kFallback,  // fallback thread, cannot be used by user if not clear or used by
-              // kernel.
-  kBoot,      // The core we booted from, the mama.
-  kInvalidThread,
-  kThreadCount,
+  kHartSystemReserved,  // System reserved thread, well user can't use it
+  kHartStandard,        // user thread, cannot be used by kernel
+  kHartFallback,  // fallback thread, cannot be used by user if not clear or
+                  // used by kernel.
+  kHartBoot,      // The core we booted from, the mama.
+  kInvalidHart,
+  kHartCount,
 };
 
 ///
@@ -105,8 +105,6 @@ class SMPManager final {
  private:
   Array<HardwareThread, kMaxHarts> m_ThreadList;
   ThreadID m_CurrentThread{0};
-  SizeT m_UsedThreads{0};
-  SizeT m_MaxThreads{0};
 };
 
 // @brief wakes up thread.