RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-15 09:54:57 +00:00
Code Issues Activity Actions

More work on CoreInode.

Browse source
This commit is contained in:
Andreas Kling 2018-11-13 23:44:54 +01:00
parent 26852a8363
commit c735c56e4c
13 changed files with 342 additions and 172 deletions
Download patch file Download diff file Expand all files Collapse all files

32
VirtualFileSystem/FileSystem.cpp
View file

@ -64,6 +64,38 @@ String FileSystem::nameOfChildInDirectory(InodeIdentifier parent, InodeIdentifie
return name;
}
ByteBuffer CoreInode::read_entire(FileDescriptor* descriptor)
{
return fs().readEntireInode(identifier(), descriptor);
/*
size_t initial_size = metadata().size ? metadata().size : 4096;
auto contents = ByteBuffer::createUninitialized(initial_size);
Unix::ssize_t nread;
byte buffer[4096];
byte* out = contents.pointer();
Unix::off_t offset = 0;
for (;;) {
nread = read_bytes(offset, sizeof(buffer), buffer, descriptor);
//kprintf("nread: %u, bufsiz: %u, initial_size: %u\n", nread, sizeof(buffer), initial_size);
ASSERT(nread <= (Unix::ssize_t)sizeof(buffer));
if (nread <= 0)
break;
memcpy(out, buffer, nread);
out += nread;
offset += nread;
ASSERT(offset <= (Unix::ssize_t)initial_size); // FIXME: Support dynamically growing the buffer.
}
if (nread < 0) {
kprintf("CoreInode::read_entire: ERROR: %d\n", nread);
return nullptr;
}
contents.trim(offset);
return contents;
*/
}
ByteBuffer FileSystem::readEntireInode(InodeIdentifier inode, FileDescriptor* handle) const
{
ASSERT(inode.fileSystemID() == id());