language-servers/roc
1
0
Fork 0
mirror of https://github.com/roc-lang/roc.git synced 2025-10-03 00:24:34 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

move around some libc code

Browse source
This commit is contained in:
Folkert 2022-10-18 00:20:01 +02:00
parent c5cdab1ff9
commit 84178c66e1
No known key found for this signature in database
GPG key ID: 1F17F6FFD112B97C
1 changed files with 8 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

16
crates/repl_expect/src/run.rs
View file

@ -57,14 +57,9 @@ impl<'a> ExpectMemory<'a> {
internal_error!("failed to shm_open fd");
}
let mut stat: libc::stat = std::mem::zeroed();
if libc::fstat(shared_fd, &mut stat) == -1 {
internal_error!("failed to stat shared file, does it exist?");
}
if stat.st_size < Self::SHM_SIZE as _ {
if libc::ftruncate(shared_fd, Self::SHM_SIZE as _) == -1 {
internal_error!("failed to truncate shared file, are the permissions wrong?");
}
// NOTE: we can only call `ftruncate` once on this file descriptor on mac
if libc::ftruncate(shared_fd, Self::SHM_SIZE as _) == -1 {
internal_error!("failed to truncate shared file, are the permissions wrong?");
}
let ptr = libc::mmap(
@ -75,10 +70,15 @@ impl<'a> ExpectMemory<'a> {
shared_fd,
0,
);
if ptr as usize == usize::MAX {
// ptr = -1
roc_error_macros::internal_error!("failed to mmap shared pointer")
}
// fill the buffer with a fill pattern
libc::memset(ptr, 0xAA, Self::SHM_SIZE);
ptr
};