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Greatly improve /proc/PID/stack by tracing the ebp frame chain.

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I also added a generator cache to FileHandle. This way, multiple
reads to a generated file (i.e in a synthfs) can transparently
handle multiple calls to read() without the contents changing
between calls.

The cache is discarded at EOF (or when the FileHandle is destroyed.)
This commit is contained in:
Andreas Kling
2018-10-27 00:14:24 +02:00
parent c928b06218
commit 2716a9e2d7
22 changed files with 210 additions and 116 deletions
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4
VirtualFileSystem/FileHandle.cpp
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@@ -102,7 +102,7 @@ Unix::ssize_t FileHandle::read(byte* buffer, Unix::size_t count)
// FIXME: What should happen to m_currentOffset?
return m_vnode->characterDevice()->read(buffer, count);
}
Unix::ssize_t nread = m_vnode->fileSystem()->readInodeBytes(m_vnode->inode, m_currentOffset, count, buffer);
Unix::ssize_t nread = m_vnode->fileSystem()->readInodeBytes(m_vnode->inode, m_currentOffset, count, buffer, this);
m_currentOffset += nread;
return nread;
}
@@ -125,7 +125,7 @@ ByteBuffer FileHandle::readEntireFile()
return buffer;
}
return m_vnode->fileSystem()->readEntireInode(m_vnode->inode);
return m_vnode->fileSystem()->readEntireInode(m_vnode->inode, this);
}
bool FileHandle::isDirectory() const