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Diffstat (limited to 'src/zmq/include/zmq.h')
| -rwxr-xr-x | src/zmq/include/zmq.h | 416 |
1 files changed, 416 insertions, 0 deletions
diff --git a/src/zmq/include/zmq.h b/src/zmq/include/zmq.h new file mode 100755 index 00000000..f7b10db6 --- /dev/null +++ b/src/zmq/include/zmq.h @@ -0,0 +1,416 @@ +/* + 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 + |