7.6.2.14 I/O Conditions

These condition types are exported by both the (rnrs io ports (6)) and (rnrs io simple (6)) libraries.

Condition Type: &i/o

Scheme Procedure: make-i/o-error

Scheme Procedure: i/o-error? obj

A condition supertype for more specific I/O errors.

Condition Type: &i/o-read

Scheme Procedure: make-i/o-read-error

Scheme Procedure: i/o-read-error? obj

A subtype of &i/o; represents read-related I/O errors.

Condition Type: &i/o-write

Scheme Procedure: make-i/o-write-error

Scheme Procedure: i/o-write-error? obj

A subtype of &i/o; represents write-related I/O errors.

Condition Type: &i/o-invalid-position

Scheme Procedure: make-i/o-invalid-position-error position

Scheme Procedure: i/o-invalid-position-error? obj

Scheme Procedure: i/o-error-position condition

A subtype of &i/o; represents an error related to an attempt to set the file position to an invalid position.

Condition Type: &i/o-filename

Scheme Procedure: make-io-filename-error filename

Scheme Procedure: i/o-filename-error? obj

Scheme Procedure: i/o-error-filename condition

A subtype of &i/o; represents an error related to an operation on a named file.

Condition Type: &i/o-file-protection

Scheme Procedure: make-i/o-file-protection-error filename

Scheme Procedure: i/o-file-protection-error? obj

A subtype of &i/o-filename; represents an error resulting from an attempt to access a named file for which the caller had insufficient permissions.

Condition Type: &i/o-file-is-read-only

Scheme Procedure: make-i/o-file-is-read-only-error filename

Scheme Procedure: i/o-file-is-read-only-error? obj

A subtype of &i/o-file-protection; represents an error related to an attempt to write to a read-only file.

Condition Type: &i/o-file-already-exists

Scheme Procedure: make-i/o-file-already-exists-error filename

Scheme Procedure: i/o-file-already-exists-error? obj

A subtype of &i/o-filename; represents an error related to an operation on an existing file that was assumed not to exist.

Condition Type: &i/o-file-does-not-exist

Scheme Procedure: make-i/o-file-does-not-exist-error

Scheme Procedure: i/o-file-does-not-exist-error? obj

A subtype of &i/o-filename; represents an error related to an operation on a non-existent file that was assumed to exist.

Condition Type: &i/o-port

Scheme Procedure: make-i/o-port-error port

Scheme Procedure: i/o-port-error? obj

Scheme Procedure: i/o-error-port condition

A subtype of &i/o; represents an error related to an operation on the port port.