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Servo/Source/zeromq/include/zmq.h

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/*
Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
0MQ is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*************************************************************************
NOTE to contributors. This file comprises the principal public contract
for ZeroMQ API users (along with zmq_utils.h). Any change to this file
supplied in a stable release SHOULD not break existing applications.
In practice this means that the value of constants must not change, and
that old values may not be reused for new constants.
*************************************************************************
*/
#ifndef __ZMQ_H_INCLUDED__
#define __ZMQ_H_INCLUDED__
/* Version macros for compile-time API version detection */
#define ZMQ_VERSION_MAJOR 4
#define ZMQ_VERSION_MINOR 0
#define ZMQ_VERSION_PATCH 3
#define ZMQ_MAKE_VERSION(major, minor, patch) \
((major) * 10000 + (minor) * 100 + (patch))
#define ZMQ_VERSION \
ZMQ_MAKE_VERSION(ZMQ_VERSION_MAJOR, ZMQ_VERSION_MINOR, ZMQ_VERSION_PATCH)
#ifdef __cplusplus
extern "C" {
#endif
#if !defined _WIN32_WCE
#include <errno.h>
#endif
#include <stddef.h>
#include <stdio.h>
#if defined _WIN32
#include <winsock2.h>
#endif
/* Handle DSO symbol visibility */
#if defined _WIN32
# if defined ZMQ_STATIC
# define ZMQ_EXPORT
# elif defined DLL_EXPORT
# define ZMQ_EXPORT __declspec(dllexport)
# else
# define ZMQ_EXPORT __declspec(dllimport)
# endif
#else
# if defined __SUNPRO_C || defined __SUNPRO_CC
# define ZMQ_EXPORT __global
# elif (defined __GNUC__ && __GNUC__ >= 4) || defined __INTEL_COMPILER
# define ZMQ_EXPORT __attribute__ ((visibility("default")))
# else
# define ZMQ_EXPORT
# endif
#endif
/* Define integer types needed for event interface */
#if defined ZMQ_HAVE_SOLARIS || defined ZMQ_HAVE_OPENVMS
# include <inttypes.h>
#elif defined _MSC_VER && _MSC_VER < 1600
# ifndef int32_t
typedef __int32 int32_t;
# endif
# ifndef uint16_t
typedef unsigned __int16 uint16_t;
# endif
# ifndef uint8_t
typedef unsigned __int8 uint8_t;
# endif
#else
# include <stdint.h>
#endif
/******************************************************************************/
/* 0MQ errors. */
/******************************************************************************/
/* A number random enough not to collide with different errno ranges on */
/* different OSes. The assumption is that error_t is at least 32-bit type. */
#define ZMQ_HAUSNUMERO 156384712
/* On Windows platform some of the standard POSIX errnos are not defined. */
#ifndef ENOTSUP
#define ENOTSUP (ZMQ_HAUSNUMERO + 1)
#endif
#ifndef EPROTONOSUPPORT
#define EPROTONOSUPPORT (ZMQ_HAUSNUMERO + 2)
#endif
#ifndef ENOBUFS
#define ENOBUFS (ZMQ_HAUSNUMERO + 3)
#endif
#ifndef ENETDOWN
#define ENETDOWN (ZMQ_HAUSNUMERO + 4)
#endif
#ifndef EADDRINUSE
#define EADDRINUSE (ZMQ_HAUSNUMERO + 5)
#endif
#ifndef EADDRNOTAVAIL
#define EADDRNOTAVAIL (ZMQ_HAUSNUMERO + 6)
#endif
#ifndef ECONNREFUSED
#define ECONNREFUSED (ZMQ_HAUSNUMERO + 7)
#endif
#ifndef EINPROGRESS
#define EINPROGRESS (ZMQ_HAUSNUMERO + 8)
#endif
#ifndef ENOTSOCK
#define ENOTSOCK (ZMQ_HAUSNUMERO + 9)
#endif
#ifndef EMSGSIZE
#define EMSGSIZE (ZMQ_HAUSNUMERO + 10)
#endif
#ifndef EAFNOSUPPORT
#define EAFNOSUPPORT (ZMQ_HAUSNUMERO + 11)
#endif
#ifndef ENETUNREACH
#define ENETUNREACH (ZMQ_HAUSNUMERO + 12)
#endif
#ifndef ECONNABORTED
#define ECONNABORTED (ZMQ_HAUSNUMERO + 13)
#endif
#ifndef ECONNRESET
#define ECONNRESET (ZMQ_HAUSNUMERO + 14)
#endif
#ifndef ENOTCONN
#define ENOTCONN (ZMQ_HAUSNUMERO + 15)
#endif
#ifndef ETIMEDOUT
#define ETIMEDOUT (ZMQ_HAUSNUMERO + 16)
#endif
#ifndef EHOSTUNREACH
#define EHOSTUNREACH (ZMQ_HAUSNUMERO + 17)
#endif
#ifndef ENETRESET
#define ENETRESET (ZMQ_HAUSNUMERO + 18)
#endif
/* Native 0MQ error codes. */
#define EFSM (ZMQ_HAUSNUMERO + 51)
#define ENOCOMPATPROTO (ZMQ_HAUSNUMERO + 52)
#define ETERM (ZMQ_HAUSNUMERO + 53)
#define EMTHREAD (ZMQ_HAUSNUMERO + 54)
/* Run-time API version detection */
ZMQ_EXPORT void zmq_version (int *major, int *minor, int *patch);
/* This function retrieves the errno as it is known to 0MQ library. The goal */
/* of this function is to make the code 100% portable, including where 0MQ */
/* compiled with certain CRT library (on Windows) is linked to an */
/* application that uses different CRT library. */
ZMQ_EXPORT int zmq_errno (void);
/* Resolves system errors and 0MQ errors to human-readable string. */
ZMQ_EXPORT const char *zmq_strerror (int errnum);
/******************************************************************************/
/* 0MQ infrastructure (a.k.a. context) initialisation & termination. */
/******************************************************************************/
/* New API */
/* Context options */
#define ZMQ_IO_THREADS 1
#define ZMQ_MAX_SOCKETS 2
/* Default for new contexts */
#define ZMQ_IO_THREADS_DFLT 1
#define ZMQ_MAX_SOCKETS_DFLT 1023
ZMQ_EXPORT void *zmq_ctx_new (void);
ZMQ_EXPORT int zmq_ctx_term (void *context);
ZMQ_EXPORT int zmq_ctx_shutdown (void *ctx_);
ZMQ_EXPORT int zmq_ctx_set (void *context, int option, int optval);
ZMQ_EXPORT int zmq_ctx_get (void *context, int option);
/* Old (legacy) API */
ZMQ_EXPORT void *zmq_init (int io_threads);
ZMQ_EXPORT int zmq_term (void *context);
ZMQ_EXPORT int zmq_ctx_destroy (void *context);
/******************************************************************************/
/* 0MQ message definition. */
/******************************************************************************/
typedef struct zmq_msg_t {unsigned char _ [32];} zmq_msg_t;
typedef void (zmq_free_fn) (void *data, void *hint);
ZMQ_EXPORT int zmq_msg_init (zmq_msg_t *msg);
ZMQ_EXPORT int zmq_msg_init_size (zmq_msg_t *msg, size_t size);
ZMQ_EXPORT int zmq_msg_init_data (zmq_msg_t *msg, void *data,
size_t size, zmq_free_fn *ffn, void *hint);
ZMQ_EXPORT int zmq_msg_send (zmq_msg_t *msg, void *s, int flags);
ZMQ_EXPORT int zmq_msg_recv (zmq_msg_t *msg, void *s, int flags);
ZMQ_EXPORT int zmq_msg_close (zmq_msg_t *msg);
ZMQ_EXPORT int zmq_msg_move (zmq_msg_t *dest, zmq_msg_t *src);
ZMQ_EXPORT int zmq_msg_copy (zmq_msg_t *dest, zmq_msg_t *src);
ZMQ_EXPORT void *zmq_msg_data (zmq_msg_t *msg);
ZMQ_EXPORT size_t zmq_msg_size (zmq_msg_t *msg);
ZMQ_EXPORT int zmq_msg_more (zmq_msg_t *msg);
ZMQ_EXPORT int zmq_msg_get (zmq_msg_t *msg, int option);
ZMQ_EXPORT int zmq_msg_set (zmq_msg_t *msg, int option, int optval);
/******************************************************************************/
/* 0MQ socket definition. */
/******************************************************************************/
/* Socket types. */
#define ZMQ_PAIR 0
#define ZMQ_PUB 1
#define ZMQ_SUB 2
#define ZMQ_REQ 3
#define ZMQ_REP 4
#define ZMQ_DEALER 5
#define ZMQ_ROUTER 6
#define ZMQ_PULL 7
#define ZMQ_PUSH 8
#define ZMQ_XPUB 9
#define ZMQ_XSUB 10
#define ZMQ_STREAM 11
/* Deprecated aliases */
#define ZMQ_XREQ ZMQ_DEALER
#define ZMQ_XREP ZMQ_ROUTER
/* Socket options. */
#define ZMQ_AFFINITY 4
#define ZMQ_IDENTITY 5
#define ZMQ_SUBSCRIBE 6
#define ZMQ_UNSUBSCRIBE 7
#define ZMQ_RATE 8
#define ZMQ_RECOVERY_IVL 9
#define ZMQ_SNDBUF 11
#define ZMQ_RCVBUF 12
#define ZMQ_RCVMORE 13
#define ZMQ_FD 14
#define ZMQ_EVENTS 15
#define ZMQ_TYPE 16
#define ZMQ_LINGER 17
#define ZMQ_RECONNECT_IVL 18
#define ZMQ_BACKLOG 19
#define ZMQ_RECONNECT_IVL_MAX 21
#define ZMQ_MAXMSGSIZE 22
#define ZMQ_SNDHWM 23
#define ZMQ_RCVHWM 24
#define ZMQ_MULTICAST_HOPS 25
#define ZMQ_RCVTIMEO 27
#define ZMQ_SNDTIMEO 28
#define ZMQ_LAST_ENDPOINT 32
#define ZMQ_ROUTER_MANDATORY 33
#define ZMQ_TCP_KEEPALIVE 34
#define ZMQ_TCP_KEEPALIVE_CNT 35
#define ZMQ_TCP_KEEPALIVE_IDLE 36
#define ZMQ_TCP_KEEPALIVE_INTVL 37
#define ZMQ_TCP_ACCEPT_FILTER 38
#define ZMQ_IMMEDIATE 39
#define ZMQ_XPUB_VERBOSE 40
#define ZMQ_ROUTER_RAW 41
#define ZMQ_IPV6 42
#define ZMQ_MECHANISM 43
#define ZMQ_PLAIN_SERVER 44
#define ZMQ_PLAIN_USERNAME 45
#define ZMQ_PLAIN_PASSWORD 46
#define ZMQ_CURVE_SERVER 47
#define ZMQ_CURVE_PUBLICKEY 48
#define ZMQ_CURVE_SECRETKEY 49
#define ZMQ_CURVE_SERVERKEY 50
#define ZMQ_PROBE_ROUTER 51
#define ZMQ_REQ_CORRELATE 52
#define ZMQ_REQ_RELAXED 53
#define ZMQ_CONFLATE 54
#define ZMQ_ZAP_DOMAIN 55
/* Message options */
#define ZMQ_MORE 1
/* Send/recv options. */
#define ZMQ_DONTWAIT 1
#define ZMQ_SNDMORE 2
/* Security mechanisms */
#define ZMQ_NULL 0
#define ZMQ_PLAIN 1
#define ZMQ_CURVE 2
/* Deprecated options and aliases */
#define ZMQ_IPV4ONLY 31
#define ZMQ_DELAY_ATTACH_ON_CONNECT ZMQ_IMMEDIATE
#define ZMQ_NOBLOCK ZMQ_DONTWAIT
#define ZMQ_FAIL_UNROUTABLE ZMQ_ROUTER_MANDATORY
#define ZMQ_ROUTER_BEHAVIOR ZMQ_ROUTER_MANDATORY
/******************************************************************************/
/* 0MQ socket events and monitoring */
/******************************************************************************/
/* Socket transport events (tcp and ipc only) */
#define ZMQ_EVENT_CONNECTED 1
#define ZMQ_EVENT_CONNECT_DELAYED 2
#define ZMQ_EVENT_CONNECT_RETRIED 4
#define ZMQ_EVENT_LISTENING 8
#define ZMQ_EVENT_BIND_FAILED 16
#define ZMQ_EVENT_ACCEPTED 32
#define ZMQ_EVENT_ACCEPT_FAILED 64
#define ZMQ_EVENT_CLOSED 128
#define ZMQ_EVENT_CLOSE_FAILED 256
#define ZMQ_EVENT_DISCONNECTED 512
#define ZMQ_EVENT_MONITOR_STOPPED 1024
#define ZMQ_EVENT_ALL ( ZMQ_EVENT_CONNECTED | ZMQ_EVENT_CONNECT_DELAYED | \
ZMQ_EVENT_CONNECT_RETRIED | ZMQ_EVENT_LISTENING | \
ZMQ_EVENT_BIND_FAILED | ZMQ_EVENT_ACCEPTED | \
ZMQ_EVENT_ACCEPT_FAILED | ZMQ_EVENT_CLOSED | \
ZMQ_EVENT_CLOSE_FAILED | ZMQ_EVENT_DISCONNECTED | \
ZMQ_EVENT_MONITOR_STOPPED)
/* Socket event data */
typedef struct {
uint16_t event; // id of the event as bitfield
int32_t value ; // value is either error code, fd or reconnect interval
} zmq_event_t;
ZMQ_EXPORT void *zmq_socket (void *, int type);
ZMQ_EXPORT int zmq_close (void *s);
ZMQ_EXPORT int zmq_setsockopt (void *s, int option, const void *optval,
size_t optvallen);
ZMQ_EXPORT int zmq_getsockopt (void *s, int option, void *optval,
size_t *optvallen);
ZMQ_EXPORT int zmq_bind (void *s, const char *addr);
ZMQ_EXPORT int zmq_connect (void *s, const char *addr);
ZMQ_EXPORT int zmq_unbind (void *s, const char *addr);
ZMQ_EXPORT int zmq_disconnect (void *s, const char *addr);
ZMQ_EXPORT int zmq_send (void *s, const void *buf, size_t len, int flags);
ZMQ_EXPORT int zmq_send_const (void *s, const void *buf, size_t len, int flags);
ZMQ_EXPORT int zmq_recv (void *s, void *buf, size_t len, int flags);
ZMQ_EXPORT int zmq_socket_monitor (void *s, const char *addr, int events);
ZMQ_EXPORT int zmq_sendmsg (void *s, zmq_msg_t *msg, int flags);
ZMQ_EXPORT int zmq_recvmsg (void *s, zmq_msg_t *msg, int flags);
/* Experimental */
struct iovec;
ZMQ_EXPORT int zmq_sendiov (void *s, struct iovec *iov, size_t count, int flags);
ZMQ_EXPORT int zmq_recviov (void *s, struct iovec *iov, size_t *count, int flags);
/******************************************************************************/
/* I/O multiplexing. */
/******************************************************************************/
#define ZMQ_POLLIN 1
#define ZMQ_POLLOUT 2
#define ZMQ_POLLERR 4
typedef struct
{
void *socket;
#if defined _WIN32
SOCKET fd;
#else
int fd;
#endif
short events;
short revents;
} zmq_pollitem_t;
#define ZMQ_POLLITEMS_DFLT 16
ZMQ_EXPORT int zmq_poll (zmq_pollitem_t *items, int nitems, long timeout);
/* Built-in message proxy (3-way) */
ZMQ_EXPORT int zmq_proxy (void *frontend, void *backend, void *capture);
/* Encode a binary key as printable text using ZMQ RFC 32 */
ZMQ_EXPORT char *zmq_z85_encode (char *dest, uint8_t *data, size_t size);
/* Encode a binary key from printable text per ZMQ RFC 32 */
ZMQ_EXPORT uint8_t *zmq_z85_decode (uint8_t *dest, char *string);
/* Deprecated aliases */
#define ZMQ_STREAMER 1
#define ZMQ_FORWARDER 2
#define ZMQ_QUEUE 3
/* Deprecated method */
ZMQ_EXPORT int zmq_device (int type, void *frontend, void *backend);
#undef ZMQ_EXPORT
#ifdef __cplusplus
}
#endif
#endif