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err.hpp
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/* SPDX-License-Identifier: MPL-2.0 */
#ifndef __ZMQ_ERR_HPP_INCLUDED__
#define __ZMQ_ERR_HPP_INCLUDED__
#include <assert.h>
#if defined _WIN32_WCE
#include "..\builds\msvc\errno.hpp"
#else
#include <errno.h>
#endif
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#ifndef ZMQ_HAVE_WINDOWS
#include <netdb.h>
#endif
#include "likely.hpp"
// 0MQ-specific error codes are defined in zmq.h
// EPROTO is not used by OpenBSD and maybe other platforms.
#ifndef EPROTO
#define EPROTO 0
#endif
namespace zmq
{
const char *errno_to_string (int errno_);
#if defined __clang__
#if __has_feature(attribute_analyzer_noreturn)
void zmq_abort (const char *errmsg_) __attribute__ ((analyzer_noreturn));
#else
void zmq_abort (const char *errmsg_);
#endif
#elif defined __MSCVER__
__declspec(noreturn) void zmq_abort (const char *errmsg_);
#else
void zmq_abort (const char *errmsg_);
#endif
void print_backtrace ();
}
#ifdef ZMQ_HAVE_WINDOWS
namespace zmq
{
const char *wsa_error ();
const char *
wsa_error_no (int no_,
const char *wsae_wouldblock_string_ = "Operation would block");
void win_error (char *buffer_, size_t buffer_size_);
int wsa_error_to_errno (int errcode_);
}
// Provides convenient way to check WSA-style errors on Windows.
#define wsa_assert(x) \
do { \
if (unlikely (!(x))) { \
const char *errstr = zmq::wsa_error (); \
if (errstr != NULL) { \
fprintf (stderr, "Assertion failed: %s [%i] (%s:%d)\n", \
errstr, WSAGetLastError (), __FILE__, __LINE__); \
fflush (stderr); \
zmq::zmq_abort (errstr); \
} \
} \
} while (false)
// Provides convenient way to assert on WSA-style errors on Windows.
#define wsa_assert_no(no) \
do { \
const char *errstr = zmq::wsa_error_no (no); \
if (errstr != NULL) { \
fprintf (stderr, "Assertion failed: %s (%s:%d)\n", errstr, \
__FILE__, __LINE__); \
fflush (stderr); \
zmq::zmq_abort (errstr); \
} \
} while (false)
// Provides convenient way to check GetLastError-style errors on Windows.
#define win_assert(x) \
do { \
if (unlikely (!(x))) { \
char errstr[256]; \
zmq::win_error (errstr, 256); \
fprintf (stderr, "Assertion failed: %s (%s:%d)\n", errstr, \
__FILE__, __LINE__); \
fflush (stderr); \
zmq::zmq_abort (errstr); \
} \
} while (false)
#endif
// This macro works in exactly the same way as the normal assert. It is used
// in its stead because standard assert on Win32 in broken - it prints nothing
// when used within the scope of JNI library.
#define zmq_assert(x) \
do { \
if (unlikely (!(x))) { \
fprintf (stderr, "Assertion failed: %s (%s:%d)\n", #x, __FILE__, \
__LINE__); \
fflush (stderr); \
zmq::zmq_abort (#x); \
} \
} while (false)
// Provides convenient way to check for errno-style errors.
#define errno_assert(x) \
do { \
if (unlikely (!(x))) { \
const char *errstr = strerror (errno); \
fprintf (stderr, "%s (%s:%d)\n", errstr, __FILE__, __LINE__); \
fflush (stderr); \
zmq::zmq_abort (errstr); \
} \
} while (false)
// Provides convenient way to check for POSIX errors.
#define posix_assert(x) \
do { \
if (unlikely (x)) { \
const char *errstr = strerror (x); \
fprintf (stderr, "%s (%s:%d)\n", errstr, __FILE__, __LINE__); \
fflush (stderr); \
zmq::zmq_abort (errstr); \
} \
} while (false)
// Provides convenient way to check for errors from getaddrinfo.
#define gai_assert(x) \
do { \
if (unlikely (x)) { \
const char *errstr = gai_strerror (x); \
fprintf (stderr, "%s (%s:%d)\n", errstr, __FILE__, __LINE__); \
fflush (stderr); \
zmq::zmq_abort (errstr); \
} \
} while (false)
// Provides convenient way to check whether memory allocation have succeeded.
#define alloc_assert(x) \
do { \
if (unlikely (!(x))) { \
fprintf (stderr, "FATAL ERROR: OUT OF MEMORY (%s:%d)\n", __FILE__, \
__LINE__); \
fflush (stderr); \
zmq::zmq_abort ("FATAL ERROR: OUT OF MEMORY"); \
} \
} while (false)
#endif