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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
parent 12b6e69150
commit 7c87891c06
28 changed files with 198 additions and 128 deletions
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4
Kernel/Syscalls/fcntl.cpp
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@ -14,7 +14,7 @@ KResultOr<FlatPtr> Process::sys$fcntl(int fd, int cmd, u32 arg)
{
REQUIRE_PROMISE(stdio);
dbgln_if(IO_DEBUG, "sys$fcntl: fd={}, cmd={}, arg={}", fd, cmd, arg);
auto description = file_description(fd);
auto description = fds().file_description(fd);
if (!description)
return EBADF;
// NOTE: The FD flags are not shared between FileDescription objects.
@ -24,7 +24,7 @@ KResultOr<FlatPtr> Process::sys$fcntl(int fd, int cmd, u32 arg)
int arg_fd = (int)arg;
if (arg_fd < 0)
return EINVAL;
int new_fd = alloc_fd(arg_fd);
int new_fd = fds().allocate(arg_fd);
if (new_fd < 0)
return new_fd;
m_fds[new_fd].set(*description);