Struct LINUX_ERRNO

The system tried to use the device represented by a file you specified, and it couldn’t find the device. This can mean that the device file was installed incorrectly, or that the physical device is missing or not correctly attached to the computer.

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pub const E2BIG: isize = 7isize

“Argument list too long.”

Used when the arguments passed to a new program being executed with one of the exec functions (see Executing a File) occupy too much memory space. This condition never arises on GNU/Hurd systems.

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pub const ENOEXEC: isize = 8isize

“Exec format error.”

Invalid executable file format. This condition is detected by the exec functions.

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pub const EBADF: isize = 9isize

“Bad file descriptor.”

For example, I/O on a descriptor that has been closed or reading from a descriptor open only for writing (or vice versa).

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pub const ECHILD: isize = 10isize

“No child processes.”

This error happens on operations that are supposed to manipulate child processes, when there aren’t any processes to manipulate.

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pub const EAGAIN: isize = 11isize

“Resource temporarily unavailable.”

The call might work if you try again later. The constant EWOULDBLOCK is another name for EAGAIN.

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pub const ENOMEM: isize = 12isize

“Cannot allocate memory.”

The system cannot allocate more virtual memory because its capacity is full.

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pub const EACCES: isize = 13isize

“Permission denied.”

The file permissions do not allow the attempted operation.

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pub const EFAULT: isize = 14isize

“Bad address.”

An invalid pointer was detected. On GNU/Hurd systems, this error never happens; you get a signal instead.

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pub const ENOTBLK: isize = 15isize

“Block device required.”

A file that isn’t a block special file was given in a situation that requires one. For example, trying to mount an ordinary file as a file system in Unix gives this error.

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pub const EBUSY: isize = 16isize

“Device or resource busy.”

A system resource that can’t be shared is already in use. For example, if you try to delete a file that is the root of a currently mounted filesystem, you get this error.

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pub const EEXIST: isize = 17isize

“File exists.”

An existing file was specified in a context where it only makes sense to specify a new file.

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pub const EXDEV: isize = 18isize

“Invalid cross-device link.”

An attempt to make an improper link across file systems was detected. This happens not only when you use link (see Hard Links) but also when you rename a file with rename (see Renaming Files).

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pub const ENODEV: isize = 19isize

“No such device.”

The wrong type of device was given to a function that expects a particular sort of device.

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pub const ENOTDIR: isize = 20isize

“Not a directory.”

A file that isn’t a directory was specified when a directory is required.

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pub const EISDIR: isize = 21isize

“Is a directory.”

You cannot open a directory for writing, or create or remove hard links to it.

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pub const EINVAL: isize = 22isize

“Invalid argument.”

This is used to indicate various kinds of problems with passing the wrong argument to a library function.

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pub const ENFILE: isize = 23isize

“Too many open files in system.”

There are too many distinct file openings in the entire system. Note that any number of linked channels count as just one file opening; see Linked Channels. This error never occurs on GNU/Hurd systems.

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pub const EMFILE: isize = 24isize

“Too many open files.”

The current process has too many files open and can’t open any more. Duplicate descriptors do count toward this limit.

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pub const ENOTTY: isize = 25isize

“Inappropriate ioctl for device.”

Inappropriate I/O control operation, such as trying to set terminal modes on an ordinary file.

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pub const ETXTBSY: isize = 26isize

“Text file busy.”

An attempt to execute a file that is currently open for writing, or write to a file that is currently being executed. Often using a debugger to run a program is considered having it open for writing and will cause this error. (The name stands for “text file busy”.) This is not an error on GNU/Hurd systems; the text is copied as necessary.

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pub const EFBIG: isize = 27isize

“File too large.”

The size of a file would be larger than allowed by the system.

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pub const ENOSPC: isize = 28isize

“No space left on device.”

Write operation on a file failed because the disk is full.

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pub const ESPIPE: isize = 29isize

“Illegal seek.”

Invalid seek operation (such as on a pipe).

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pub const EROFS: isize = 30isize

“Read-only file system.”

An attempt was made to modify something on a read-only file system.

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pub const EMLINK: isize = 31isize

“Too many links.”

The link count of a single file would become too large. rename can cause this error if the file being renamed already has as many links as it can take.

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pub const EPIPE: isize = 32isize

“Broken pipe.”

There is no process reading from the other end of a pipe. Every library function that returns this error code also generates a SIGPIPE signal; this signal terminates the program if not handled or blocked. Thus, your program will never actually see EPIPE unless it has handled or blocked SIGPIPE.

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pub const EDOM: isize = 33isize

“Numerical argument out of domain.”

Used by mathematical functions when an argument value does not fall into the domain over which the function is defined.

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pub const ERANGE: isize = 34isize

“Numerical result out of range.”

Used by mathematical functions when the result value is not representable because of overflow or underflow.

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pub const EWOULDBLOCK: isize = 11isize

“Operation would block.”

In the GNU C Library, this is another name for EAGAIN. The values are always the same, on every operating system.

C libraries in many older Unix systems have EWOULDBLOCK as a separate error code.

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pub const ERFKILL: isize = 132isize

Auto Trait Implementations§

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impl Freeze for LINUX_ERRNO

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impl RefUnwindSafe for LINUX_ERRNO

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impl Send for LINUX_ERRNO

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impl Sync for LINUX_ERRNO

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impl Unpin for LINUX_ERRNO

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impl UnwindSafe for LINUX_ERRNO

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