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Kernel: Don't copy a Vector<FileDescriptionAndFlags>

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Instead of copying a Vector everytime we need to enumerate a Process'
file descriptions, we can just temporarily lock so it won't change.
This commit is contained in:
Liav A 2021-06-22 21:22:17 +03:00 • committed by Andreas Kling
commit 7c87891c06
Notes: sideshowbarker 2024-07-18 11:16:32 +09:00
28 changed files with 198 additions and 128 deletions
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4
Kernel/Syscalls/read.cpp
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@ -34,7 +34,7 @@ KResultOr<FlatPtr> Process::sys$readv(int fd, Userspace<const struct iovec*> iov
return EINVAL;
}
auto description = file_description(fd);
auto description = fds().file_description(fd);
if (!description)
return EBADF;
@ -76,7 +76,7 @@ KResultOr<FlatPtr> Process::sys$read(int fd, Userspace<u8*> buffer, size_t size)
if (size > NumericLimits<ssize_t>::max())
return EINVAL;
dbgln_if(IO_DEBUG, "sys$read({}, {}, {})", fd, buffer.ptr(), size);
auto description = file_description(fd);
auto description = fds().file_description(fd);
if (!description)
return EBADF;
if (!description->is_readable())