From 66786f619d1d85d43fde0059b21cc9729d9be32b Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Tue, 11 Apr 2023 20:44:26 +0100
Subject: [PATCH] unistd: getdtablesize implementation proposal
---
src/header/unistd/mod.rs | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/src/header/unistd/mod.rs b/src/header/unistd/mod.rs
index f68e6175b..2738b7112 100644
--- a/src/header/unistd/mod.rs
+++ b/src/header/unistd/mod.rs
@@ -5,7 +5,7 @@ use core::{convert::TryFrom, mem, ptr, slice};
use crate::{
c_str::CStr,
header::{
- errno, fcntl, limits, stdlib::getenv, sys_ioctl, sys_time, sys_utsname, termios,
+ errno, fcntl, limits, stdlib::getenv, sys_ioctl, sys_resource, sys_time, sys_utsname, termios,
time::timespec,
},
platform::{self, types::*, Pal, Sys},
@@ -289,7 +289,16 @@ pub extern "C" fn getcwd(mut buf: *mut c_char, mut size: size_t) -> *mut c_char
// #[no_mangle]
pub extern "C" fn getdtablesize() -> c_int {
- unimplemented!();
+ let mut lim = mem::MaybeUninit::<sys_resource::rlimit>::uninit();
+ let r = unsafe { sys_resource::getrlimit(sys_resource::RLIMIT_NOFILE as c_int, lim.as_mut_ptr() as *mut sys_resource::rlimit) };
+ if r == 0 {
+ let cur = unsafe { lim.assume_init() }.rlim_cur;
+ match cur {
+ c if c < i32::MAX as u64 => c as i32,
+ _ => i32::MAX
+ };
+ }
+ -1
}
#[no_mangle]
--
GitLab