| 256 | // matches as well. |
| 257 | #[test] |
| 258 | fn test_libc_layout_compatibility() { |
| 259 | use crate::utils::as_ptr; |
| 260 | |
| 261 | let mut lc = unsafe { core::mem::zeroed::<libc::sigset_t>() }; |
| 262 | let mut ru = KernelSigSet::empty(); |
| 263 | let r = unsafe { libc::sigemptyset(&mut lc) }; |
| 264 | |
| 265 | assert_eq!(r, 0); |
| 266 | assert_eq!( |
| 267 | unsafe { |
| 268 | libc::memcmp( |
| 269 | as_ptr(&lc).cast(), |
| 270 | as_ptr(&ru).cast(), |
| 271 | core::mem::size_of::<KernelSigSet>(), |
| 272 | ) |
| 273 | }, |
| 274 | 0 |
| 275 | ); |
| 276 | |
| 277 | for sig in libc_sigs() { |
| 278 | ru.insert(sig); |
| 279 | assert_ne!( |
| 280 | unsafe { |
| 281 | libc::memcmp( |
| 282 | as_ptr(&lc).cast(), |
| 283 | as_ptr(&ru).cast(), |
| 284 | core::mem::size_of::<KernelSigSet>(), |
| 285 | ) |
| 286 | }, |
| 287 | 0 |
| 288 | ); |
| 289 | let r = unsafe { libc::sigaddset(&mut lc, sig.as_raw()) }; |
| 290 | assert_eq!(r, 0); |
| 291 | assert_eq!( |
| 292 | unsafe { |
| 293 | libc::memcmp( |
| 294 | as_ptr(&lc).cast(), |
| 295 | as_ptr(&ru).cast(), |
| 296 | core::mem::size_of::<KernelSigSet>(), |
| 297 | ) |
| 298 | }, |
| 299 | 0 |
| 300 | ); |
| 301 | ru.remove(sig); |
| 302 | assert_ne!( |
| 303 | unsafe { |
| 304 | libc::memcmp( |
| 305 | as_ptr(&lc).cast(), |
| 306 | as_ptr(&ru).cast(), |
| 307 | core::mem::size_of::<KernelSigSet>(), |
| 308 | ) |
| 309 | }, |
| 310 | 0 |
| 311 | ); |
| 312 | let r = unsafe { libc::sigdelset(&mut lc, sig.as_raw()) }; |
| 313 | assert_eq!(r, 0); |
| 314 | assert_eq!( |
| 315 | unsafe { |