Index:
Ruby exception objects are subclasses of
Exception. However,
operating systems typically report errors using plain
integers. Module
Errno is created dynamically to map these
operating system errors to Ruby classes, with each error number generating
its own subclass of
SystemCallError. As the subclass is created
in module
Errno, its name will start
Errno::.
The names of the
Errno
:: classes depend on the environment in
which Ruby runs. On a typical Unix or Windows platform, there are
Errno classes such as
Errno::EACCES,
Errno::EAGAIN,
Errno::EINTR, and so on.
The integer operating system error number corresponding to a
particular error is available as the class constant
Errno::
error
::Errno.
Errno::EACCES::Errno
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13
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Errno::EAGAIN::Errno
|
� |
11
|
Errno::EINTR::Errno
|
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4
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The full list of operating system errors on your particular
platform are available as the constants of
Errno.
Errno.constants
|
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E2BIG, EACCES, EADDRINUSE, EADDRNOTAVAIL, EADV, EAFNOSUPPORT, EAGAIN, ...
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