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Update kernel code

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This commit is contained in:
Alex
2023-08-22 06:21:17 +03:00
parent ef3b761d4f
commit 8898791257
49 changed files with 3389 additions and 2313 deletions
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43
FileSystem/FileNode.cpp
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@ -17,6 +17,13 @@
#include <filesystem.hpp>
#ifdef DEBUG
const char *SeekStrings[] =
{"SEEK_SET",
"SEEK_CUR",
"SEEK_END"};
#endif
namespace VirtualFileSystem
{
ReferenceNode *Node::CreateReference()
@ -83,10 +90,10 @@ namespace VirtualFileSystem
return -1;
}
off_t ReferenceNode::Seek(off_t Offset, int Whence)
off_t ReferenceNode::Seek(off_t _Offset, int Whence)
{
if (this->SymlinkTo)
return this->SymlinkTo->Seek(Offset, Whence);
return this->SymlinkTo->Seek(_Offset, Whence);
if (!this->node->Operator)
{
@ -99,25 +106,40 @@ namespace VirtualFileSystem
if (this->node->Operator->Seek)
{
off_t RefOffset = off_t(this->Offset.load());
return this->node->Operator->Seek(this->node, Offset, Whence, RefOffset);
debug("The node has a seek function");
return this->node->Operator->Seek(this->node, _Offset, Whence, RefOffset);
}
debug("Current offset is %d", this->Offset.load());
switch (Whence)
{
case SEEK_SET:
{
if (Offset > this->node->Length)
if (_Offset > this->node->Length)
{
errno = EINVAL;
return -1;
}
this->Offset.store(Offset);
if (_Offset < 0)
{
fixme("Negative offset %d is not implemented", _Offset);
_Offset = 0;
}
if (_Offset > this->node->Length)
{
fixme("Offset %d is bigger than file size %d",
_Offset, this->node->Length);
_Offset = this->node->Length;
}
this->Offset.store(_Offset);
break;
}
case SEEK_CUR:
{
off_t NewOffset = off_t(this->Offset.load()) + Offset;
off_t NewOffset = off_t(this->Offset.load()) + _Offset;
if (NewOffset > this->node->Length ||
NewOffset < 0)
{
@ -130,7 +152,7 @@ namespace VirtualFileSystem
}
case SEEK_END:
{
off_t NewOffset = this->node->Length + Offset;
off_t NewOffset = this->node->Length + _Offset;
if (NewOffset > this->node->Length ||
NewOffset < 0)
{
@ -149,7 +171,12 @@ namespace VirtualFileSystem
}
}
return (off_t)this->Offset.load();
off_t RetOffset = off_t(this->Offset.load());
debug("( %d %ld %s[%d] ) -> %d",
_Offset, this->Offset.load(),
SeekStrings[Whence], Whence,
RetOffset);
return RetOffset;
}
ReferenceNode::ReferenceNode(Node *node)