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93 lines
2.1 KiB
Go
93 lines
2.1 KiB
Go
package zmq4
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/*
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#include <zmq.h>
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*/
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import "C"
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import (
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"syscall"
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)
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// An Errno is an unsigned number describing an error condition as returned by a call to ZeroMQ.
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// It implements the error interface.
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// The number is either a standard system error, or an error defined by the C library of ZeroMQ.
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type Errno uintptr
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const (
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// Error conditions defined by the C library of ZeroMQ.
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// On Windows platform some of the standard POSIX errnos are not defined.
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EADDRINUSE = Errno(C.EADDRINUSE)
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EADDRNOTAVAIL = Errno(C.EADDRNOTAVAIL)
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EAFNOSUPPORT = Errno(C.EAFNOSUPPORT)
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ECONNABORTED = Errno(C.ECONNABORTED)
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ECONNREFUSED = Errno(C.ECONNREFUSED)
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ECONNRESET = Errno(C.ECONNRESET)
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EHOSTUNREACH = Errno(C.EHOSTUNREACH)
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EINPROGRESS = Errno(C.EINPROGRESS)
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EMSGSIZE = Errno(C.EMSGSIZE)
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ENETDOWN = Errno(C.ENETDOWN)
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ENETRESET = Errno(C.ENETRESET)
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ENETUNREACH = Errno(C.ENETUNREACH)
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ENOBUFS = Errno(C.ENOBUFS)
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ENOTCONN = Errno(C.ENOTCONN)
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ENOTSOCK = Errno(C.ENOTSOCK)
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ENOTSUP = Errno(C.ENOTSUP)
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EPROTONOSUPPORT = Errno(C.EPROTONOSUPPORT)
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ETIMEDOUT = Errno(C.ETIMEDOUT)
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// Native 0MQ error codes.
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EFSM = Errno(C.EFSM)
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EMTHREAD = Errno(C.EMTHREAD)
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ENOCOMPATPROTO = Errno(C.ENOCOMPATPROTO)
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ETERM = Errno(C.ETERM)
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)
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func errget(err error) error {
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eno, ok := err.(syscall.Errno)
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if ok {
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return Errno(eno)
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}
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return err
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}
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// Return Errno as string.
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func (errno Errno) Error() string {
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if errno >= C.ZMQ_HAUSNUMERO {
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return C.GoString(C.zmq_strerror(C.int(errno)))
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}
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return syscall.Errno(errno).Error()
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}
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/*
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Convert error to Errno.
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Example usage:
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switch AsErrno(err) {
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case zmq.Errno(syscall.EINTR):
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// standard system error
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// call was interrupted
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case zmq.ETERM:
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// error defined by ZeroMQ
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// context was terminated
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}
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See also: examples/interrupt.go
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*/
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func AsErrno(err error) Errno {
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if eno, ok := err.(Errno); ok {
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return eno
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}
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if eno, ok := err.(syscall.Errno); ok {
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return Errno(eno)
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}
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return Errno(0)
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}
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