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Implement SyntheticFileSystem::readInodeBytes().

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This commit is contained in:
Andreas Kling 2018-10-14 23:13:45 +02:00
parent 1f41a36c52
commit c7c957966a
2 changed files with 21 additions and 9 deletions
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18
VirtualFileSystem/SyntheticFileSystem.cpp
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@ -1,4 +1,5 @@
#include "SyntheticFileSystem.h"
#include <AK/StdLib.h>
RetainPtr<SyntheticFileSystem> SyntheticFileSystem::create()
{
@ -122,8 +123,19 @@ bool SyntheticFileSystem::writeInode(InodeIdentifier, const ByteBuffer&)
return false;
}
ssize_t SyntheticFileSystem::readInodeBytes(InodeIdentifier, Unix::off_t offset, size_t count, byte* buffer) const
ssize_t SyntheticFileSystem::readInodeBytes(InodeIdentifier inode, Unix::off_t offset, Unix::size_t count, byte* buffer) const
{
printf("FIXME: Implement SyntheticFileSystem::readInodeBytes().\n");
return 0;
ASSERT(inode.fileSystemID() == id());
#ifdef SYNTHFS_DEBUG
printf("[synthfs] readInode %u\n", inode.index());
#endif
ASSERT(inode.index() != 1);
ASSERT(inode.index() <= m_files.size());
ASSERT(offset >= 0);
ASSERT(buffer);
auto& file = *m_files[inode.index() - 1];
Unix::ssize_t nread = min(file.data.size() - offset, static_cast<Unix::off_t>(count));
memcpy(buffer, file.data.pointer() + offset, nread);
return nread;
}