Module errno

The rustix Errno type.

This type holds an OS error code, which conceptually corresponds to an errno value.

Safety

Linux uses error codes in -4095..0; we use rustc attributes to describe this restricted range of values.

Structs

Errno

errno—An error code.

Functions

try_decode_c_int 🔒

Check for an error from the result of a syscall which encodes a c::c_int on success.

try_decode_c_uint 🔒

Check for an error from the result of a syscall which encodes a c::c_uint on success.

try_decode_error 🔒 ^⚠

Check for an error from the result of a syscall which does not return on success. On success, return the unconsumed raw value.

try_decode_raw_fd 🔒 ^⚠

Check for an error from the result of a syscall which encodes a file descriptor on success.

try_decode_u64 🔒

Check for an error from the result of a syscall which encodes a u64 on success.

try_decode_usize 🔒

Check for an error from the result of a syscall which encodes a usize on success.

try_decode_void 🔒 ^⚠

Check for an error from the result of a syscall which encodes no value on success. On success, return the unconsumed raw value.

try_decode_void_star 🔒

Check for an error from the result of a syscall which encodes a *mut c_void on success.