Exception: SystemCallError

Inherits:

StandardError

• Object
• Exception
• StandardError
• SystemCallError

show all

Defined in:

error.c

Overview

File.open("does/not/exist")

Errno::ENOENT: No such file or directory - does/not/exist

Class Method Summary (collapse)

• + (Boolean) ===(other)

  Return true if the receiver is a generic SystemCallError, or if the error numbers self and other are the same.

Instance Method Summary (collapse)

• - (Fixnum) errno

  Return this SystemCallError's error number.

• - (Object) new(msg, errno) constructor

  If errno corresponds to a known system error code, constructs the appropriate Errno class for that error, otherwise constructs a generic SystemCallError object.

Methods inherited from Exception

#==, #backtrace, exception, #exception, #inspect, #message, #set_backtrace, #to_s

# File 'error.c'

static VALUE
syserr_initialize(int argc, VALUE *argv, VALUE self)
{
#if !defined(_WIN32)
char *strerror();
#endif
const char *err;
VALUE mesg, error;
VALUE klass = rb_obj_class(self);

if (klass == rb_eSystemCallError) {
st_data_t data = (st_data_t)klass;
rb_scan_args(argc, argv, "11", &mesg, &error);
if (argc == 1 && FIXNUM_P(mesg)) {
    error = mesg; mesg = Qnil;
}

# File 'error.c'

static VALUE
syserr_eqq(VALUE self, VALUE exc)
{
VALUE num, e;
ID en;

CONST_ID(en, "errno");

if (!rb_obj_is_kind_of(exc, rb_eSystemCallError)) {
if (!rb_respond_to(exc, en)) return Qfalse;
}

# File 'error.c'

static VALUE
syserr_errno(VALUE self)
{
    return rb_attr_get(self, rb_intern("errno"));
}