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| //
| // Copyright 2019 Staysail Systems, Inc. <info@staysail.tech>
| //
| // 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 NNG_PLATFORM_POSIX
|
| #include <errno.h>
| #include <stdarg.h>
| #include <stdio.h>
| #include <stdlib.h>
| #include <string.h>
|
| void
| nni_plat_abort(void)
| {
| abort();
| }
|
| void
| nni_plat_printf(const char *fmt, ...)
| {
| va_list ap;
| va_start(ap, fmt);
| (void) vprintf(fmt, ap);
| va_end(ap);
| }
|
| void
| nni_plat_println(const char *message)
| {
| fputs(message, stderr);
| fputc('\n', stderr);
| }
|
| const char *
| nni_plat_strerror(int errnum)
| {
| if (errnum > NNG_ESYSERR) {
| errnum -= NNG_ESYSERR;
| }
| return (strerror(errnum));
| }
|
| // 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[] = {
| // clang-format off
| { EINTR, NNG_EINTR },
| { EINVAL, NNG_EINVAL },
| { ENOMEM, NNG_ENOMEM },
| { EACCES, NNG_EPERM },
| { EADDRINUSE, NNG_EADDRINUSE },
| { EADDRNOTAVAIL, NNG_EADDRINVAL },
| { EAFNOSUPPORT, NNG_ENOTSUP },
| { EAGAIN, NNG_EAGAIN },
| { EBADF, NNG_ECLOSED },
| { EBUSY, NNG_EBUSY },
| { ECONNABORTED, NNG_ECONNABORTED },
| { ECONNREFUSED, NNG_ECONNREFUSED },
| { ECONNRESET, NNG_ECONNRESET },
| { EHOSTUNREACH, NNG_EUNREACHABLE },
| { ENETUNREACH, NNG_EUNREACHABLE },
| { ENAMETOOLONG, NNG_EINVAL },
| { ENOENT, NNG_ENOENT },
| { ENOBUFS, NNG_ENOMEM },
| { ENOPROTOOPT, NNG_ENOTSUP },
| { ENOSYS, NNG_ENOTSUP },
| { ENOTSUP, NNG_ENOTSUP },
| { EPERM, NNG_EPERM },
| { EPIPE, NNG_ECLOSED },
| { EPROTO, NNG_EPROTO },
| { EPROTONOSUPPORT, NNG_ENOTSUP },
| #ifdef ETIME // Found in STREAMs, not present on all systems.
| { ETIME, NNG_ETIMEDOUT },
| #endif
| { ETIMEDOUT, NNG_ETIMEDOUT },
| { EWOULDBLOCK, NNG_EAGAIN },
| { ENOSPC, NNG_ENOSPC },
| { EFBIG, NNG_ENOSPC },
| { EDQUOT, NNG_ENOSPC },
| { ENFILE, NNG_ENOFILES },
| { EMFILE, NNG_ENOFILES },
| { EEXIST, NNG_EEXIST },
| // must be last
| { 0, 0 },
| // clang-format on
| };
|
| 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 // NNG_PLATFORM_POSIX
|
|