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//
// Copyright 2017 Garrett D'Amore <garrett@damore.org>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#include "core/nng_impl.h"
#ifdef PLATFORM_POSIX_DEBUG
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
void
nni_plat_abort(void)
{
abort();
}
void
nni_plat_println(const char *message)
{
(void) fprintf(stderr, "%s\n", message);
}
const char *
nni_plat_strerror(int errnum)
{
if (errnum > NNG_ESYSERR) {
errnum -= NNG_ESYSERR;
}
return (strerror(errnum));
}
#define NNI_ERR(x, y) { x, y },
// There are of course other errors than these, but these are the ones
// that we might reasonably expect and want to handle "cleanly". Most of
// the others should be handled by the system error code. Note that EFAULT
// is very special, because if the error code is *that*, then we should panic
// because an invalid system call has been made. (That would be a sign
// of a serious software bug, in other words.) POSIX says that all these
// error codes should exist, and be distinct positive numbers. (EWOULDBLOCK
// and EAGAIN are permitted to have the same value.)
static struct {
int posix_err;
int nng_err;
}
nni_plat_errnos[] = {
NNI_ERR(EINTR, NNG_EINTR)
NNI_ERR(EINVAL, NNG_EINVAL)
NNI_ERR(ENOMEM, NNG_ENOMEM)
NNI_ERR(EACCES, NNG_EPERM)
NNI_ERR(EADDRINUSE, NNG_EADDRINUSE)
NNI_ERR(EADDRNOTAVAIL, NNG_EADDRINVAL)
NNI_ERR(EAFNOSUPPORT, NNG_ENOTSUP)
NNI_ERR(EAGAIN, NNG_EAGAIN)
NNI_ERR(EBADF, NNG_ECLOSED)
NNI_ERR(EBUSY, NNG_EBUSY)
NNI_ERR(ECONNABORTED, NNG_ECLOSED)
NNI_ERR(ECONNREFUSED, NNG_ECONNREFUSED)
NNI_ERR(ECONNRESET, NNG_ECLOSED)
NNI_ERR(EHOSTUNREACH, NNG_EUNREACHABLE)
NNI_ERR(ENETUNREACH, NNG_EUNREACHABLE)
NNI_ERR(ENAMETOOLONG, NNG_EINVAL)
NNI_ERR(ENOENT, NNG_ENOENT)
NNI_ERR(ENOBUFS, NNG_ENOMEM)
NNI_ERR(ENOPROTOOPT, NNG_ENOTSUP)
NNI_ERR(ENOSYS, NNG_ENOTSUP)
NNI_ERR(ENOTSUP, NNG_ENOTSUP)
NNI_ERR(EPERM, NNG_EPERM)
NNI_ERR(EPIPE, NNG_ECLOSED)
NNI_ERR(EPROTO, NNG_EPROTO)
NNI_ERR(EPROTONOSUPPORT, NNG_ENOTSUP)
NNI_ERR(ETIME, NNG_ETIMEDOUT)
NNI_ERR(ETIMEDOUT, NNG_ETIMEDOUT)
NNI_ERR(EWOULDBLOCK, NNG_EAGAIN)
NNI_ERR(0, 0) // must be last
};
int
nni_plat_errno(int errnum)
{
int i;
if (errnum == 0) {
return (0);
}
if (errnum == EFAULT) {
nni_panic("System EFAULT encountered!");
}
for (i = 0; nni_plat_errnos[i].nng_err != 0; i++) {
if (errnum == nni_plat_errnos[i].posix_err) {
return (nni_plat_errnos[i].nng_err);
}
}
// Other system errno.
return (NNG_ESYSERR + errnum);
}
#endif // PLATFORM_POSIX_DEBUG
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