You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
402 lines
12 KiB
402 lines
12 KiB
/*
|
|
Copyright (c) 2012-2014 Martin Sustrik All rights reserved.
|
|
Copyright (c) 2013 GoPivotal, Inc. All rights reserved.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"),
|
|
to deal in the Software without restriction, including without limitation
|
|
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
and/or sell copies of the Software, and to permit persons to whom
|
|
the Software is furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included
|
|
in all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef NN_H_INCLUDED
|
|
#define NN_H_INCLUDED
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <errno.h>
|
|
#include <stddef.h>
|
|
#include "nn_config.h"
|
|
|
|
/* Handle DSO symbol visibility */
|
|
#if defined NN_NO_EXPORTS
|
|
# define NN_EXPORT
|
|
#else
|
|
# if defined _WIN32
|
|
# if defined NN_EXPORTS
|
|
# define NN_EXPORT __declspec(dllexport)
|
|
# else
|
|
# define NN_EXPORT __declspec(dllimport)
|
|
# endif
|
|
# else
|
|
# if defined __SUNPRO_C
|
|
# define NN_EXPORT __global
|
|
# elif (defined __GNUC__ && __GNUC__ >= 4) || \
|
|
defined __INTEL_COMPILER || defined __clang__
|
|
# define NN_EXPORT __attribute__ ((visibility("default")))
|
|
# else
|
|
# define NN_EXPORT
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
/******************************************************************************/
|
|
/* ABI versioning support. */
|
|
/******************************************************************************/
|
|
|
|
/* Don't change this unless you know exactly what you're doing and have */
|
|
/* read and understand the following documents: */
|
|
/* www.gnu.org/software/libtool/manual/html_node/Libtool-versioning.html */
|
|
/* www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html */
|
|
|
|
/* The current interface version. */
|
|
#define NN_VERSION_CURRENT 2
|
|
|
|
/* The latest revision of the current interface. */
|
|
#define NN_VERSION_REVISION 2
|
|
|
|
/* How many past interface versions are still supported. */
|
|
#define NN_VERSION_AGE 2
|
|
|
|
/******************************************************************************/
|
|
/* 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 NN_HAUSNUMERO 156384712
|
|
|
|
/* On some platforms some standard POSIX errnos are not defined. */
|
|
#ifndef ENOTSUP
|
|
#define ENOTSUP (NN_HAUSNUMERO + 1)
|
|
#endif
|
|
#ifndef EPROTONOSUPPORT
|
|
#define EPROTONOSUPPORT (NN_HAUSNUMERO + 2)
|
|
#endif
|
|
#ifndef ENOBUFS
|
|
#define ENOBUFS (NN_HAUSNUMERO + 3)
|
|
#endif
|
|
#ifndef ENETDOWN
|
|
#define ENETDOWN (NN_HAUSNUMERO + 4)
|
|
#endif
|
|
#ifndef EADDRINUSE
|
|
#define EADDRINUSE (NN_HAUSNUMERO + 5)
|
|
#endif
|
|
#ifndef EADDRNOTAVAIL
|
|
#define EADDRNOTAVAIL (NN_HAUSNUMERO + 6)
|
|
#endif
|
|
#ifndef ECONNREFUSED
|
|
#define ECONNREFUSED (NN_HAUSNUMERO + 7)
|
|
#endif
|
|
#ifndef EINPROGRESS
|
|
#define EINPROGRESS (NN_HAUSNUMERO + 8)
|
|
#endif
|
|
#ifndef ENOTSOCK
|
|
#define ENOTSOCK (NN_HAUSNUMERO + 9)
|
|
#endif
|
|
#ifndef EAFNOSUPPORT
|
|
#define EAFNOSUPPORT (NN_HAUSNUMERO + 10)
|
|
#endif
|
|
#ifndef EPROTO
|
|
#define EPROTO (NN_HAUSNUMERO + 11)
|
|
#endif
|
|
#ifndef EAGAIN
|
|
#define EAGAIN (NN_HAUSNUMERO + 12)
|
|
#endif
|
|
#ifndef EBADF
|
|
#define EBADF (NN_HAUSNUMERO + 13)
|
|
#endif
|
|
#ifndef EINVAL
|
|
#define EINVAL (NN_HAUSNUMERO + 14)
|
|
#endif
|
|
#ifndef EMFILE
|
|
#define EMFILE (NN_HAUSNUMERO + 15)
|
|
#endif
|
|
#ifndef EFAULT
|
|
#define EFAULT (NN_HAUSNUMERO + 16)
|
|
#endif
|
|
#ifndef EACCES
|
|
#define EACCES (NN_HAUSNUMERO + 17)
|
|
#endif
|
|
#ifndef EACCESS
|
|
#define EACCESS (EACCES)
|
|
#endif
|
|
#ifndef ENETRESET
|
|
#define ENETRESET (NN_HAUSNUMERO + 18)
|
|
#endif
|
|
#ifndef ENETUNREACH
|
|
#define ENETUNREACH (NN_HAUSNUMERO + 19)
|
|
#endif
|
|
#ifndef EHOSTUNREACH
|
|
#define EHOSTUNREACH (NN_HAUSNUMERO + 20)
|
|
#endif
|
|
#ifndef ENOTCONN
|
|
#define ENOTCONN (NN_HAUSNUMERO + 21)
|
|
#endif
|
|
#ifndef EMSGSIZE
|
|
#define EMSGSIZE (NN_HAUSNUMERO + 22)
|
|
#endif
|
|
#ifndef ETIMEDOUT
|
|
#define ETIMEDOUT (NN_HAUSNUMERO + 23)
|
|
#endif
|
|
#ifndef ECONNABORTED
|
|
#define ECONNABORTED (NN_HAUSNUMERO + 24)
|
|
#endif
|
|
#ifndef ECONNRESET
|
|
#define ECONNRESET (NN_HAUSNUMERO + 25)
|
|
#endif
|
|
#ifndef ENOPROTOOPT
|
|
#define ENOPROTOOPT (NN_HAUSNUMERO + 26)
|
|
#endif
|
|
#ifndef EISCONN
|
|
#define EISCONN (NN_HAUSNUMERO + 27)
|
|
#define NN_EISCONN_DEFINED
|
|
#endif
|
|
#ifndef ESOCKTNOSUPPORT
|
|
#define ESOCKTNOSUPPORT (NN_HAUSNUMERO + 28)
|
|
#endif
|
|
|
|
/* Native nanomsg error codes. */
|
|
#ifndef ETERM
|
|
#define ETERM (NN_HAUSNUMERO + 53)
|
|
#endif
|
|
#ifndef EFSM
|
|
#define EFSM (NN_HAUSNUMERO + 54)
|
|
#endif
|
|
|
|
/* This function retrieves the errno as it is known to the library. */
|
|
/* The goal of this function is to make the code 100% portable, including */
|
|
/* where the library is compiled with certain CRT library (on Windows) and */
|
|
/* linked to an application that uses different CRT library. */
|
|
NN_EXPORT int nn_errno (void);
|
|
|
|
/* Resolves system errors and native errors to human-readable string. */
|
|
NN_EXPORT const char *nn_strerror (int errnum);
|
|
|
|
|
|
/* Returns the symbol name (e.g. "NN_REQ") and value at a specified index. */
|
|
/* If the index is out-of-range, returns NULL and sets errno to EINVAL */
|
|
/* General usage is to start at i=0 and iterate until NULL is returned. */
|
|
NN_EXPORT const char *nn_symbol (int i, int *value);
|
|
|
|
/* Constants that are returned in `ns` member of nn_symbol_properties */
|
|
#define NN_NS_NAMESPACE 0
|
|
#define NN_NS_VERSION 1
|
|
#define NN_NS_DOMAIN 2
|
|
#define NN_NS_TRANSPORT 3
|
|
#define NN_NS_PROTOCOL 4
|
|
#define NN_NS_OPTION_LEVEL 5
|
|
#define NN_NS_SOCKET_OPTION 6
|
|
#define NN_NS_TRANSPORT_OPTION 7
|
|
#define NN_NS_OPTION_TYPE 8
|
|
#define NN_NS_OPTION_UNIT 9
|
|
#define NN_NS_FLAG 10
|
|
#define NN_NS_ERROR 11
|
|
#define NN_NS_LIMIT 12
|
|
#define NN_NS_EVENT 13
|
|
|
|
/* Constants that are returned in `type` member of nn_symbol_properties */
|
|
#define NN_TYPE_NONE 0
|
|
#define NN_TYPE_INT 1
|
|
#define NN_TYPE_STR 2
|
|
|
|
/* Constants that are returned in the `unit` member of nn_symbol_properties */
|
|
#define NN_UNIT_NONE 0
|
|
#define NN_UNIT_BYTES 1
|
|
#define NN_UNIT_MILLISECONDS 2
|
|
#define NN_UNIT_PRIORITY 3
|
|
#define NN_UNIT_BOOLEAN 4
|
|
|
|
/* Structure that is returned from nn_symbol */
|
|
struct nn_symbol_properties {
|
|
|
|
/* The constant value */
|
|
int value;
|
|
|
|
/* The constant name */
|
|
const char* name;
|
|
|
|
/* The constant namespace, or zero for namespaces themselves */
|
|
int ns;
|
|
|
|
/* The option type for socket option constants */
|
|
int type;
|
|
|
|
/* The unit for the option value for socket option constants */
|
|
int unit;
|
|
};
|
|
|
|
/* Fills in nn_symbol_properties structure and returns it's length */
|
|
/* If the index is out-of-range, returns 0 */
|
|
/* General usage is to start at i=0 and iterate until zero is returned. */
|
|
NN_EXPORT int nn_symbol_info (int i,
|
|
struct nn_symbol_properties *buf, int buflen);
|
|
|
|
/******************************************************************************/
|
|
/* Helper function for shutting down multi-threaded applications. */
|
|
/******************************************************************************/
|
|
|
|
NN_EXPORT void nn_term (void);
|
|
|
|
/******************************************************************************/
|
|
/* Zero-copy support. */
|
|
/******************************************************************************/
|
|
|
|
#define NN_MSG ((size_t) -1)
|
|
|
|
NN_EXPORT void *nn_allocmsg (size_t size, int type);
|
|
NN_EXPORT void *nn_reallocmsg (void *msg, size_t size);
|
|
NN_EXPORT int nn_freemsg (void *msg);
|
|
|
|
/******************************************************************************/
|
|
/* Socket definition. */
|
|
/******************************************************************************/
|
|
|
|
struct nn_iovec {
|
|
void *iov_base;
|
|
size_t iov_len;
|
|
};
|
|
|
|
struct nn_msghdr {
|
|
struct nn_iovec *msg_iov;
|
|
int msg_iovlen;
|
|
void *msg_control;
|
|
size_t msg_controllen;
|
|
};
|
|
|
|
struct nn_cmsghdr {
|
|
size_t cmsg_len;
|
|
int cmsg_level;
|
|
int cmsg_type;
|
|
};
|
|
|
|
/* Internal stuff. Not to be used directly. */
|
|
NN_EXPORT struct nn_cmsghdr *nn_cmsg_nxthdr_ (
|
|
const struct nn_msghdr *mhdr,
|
|
const struct nn_cmsghdr *cmsg);
|
|
#define NN_CMSG_ALIGN_(len) \
|
|
(((len) + sizeof (size_t) - 1) & (size_t) ~(sizeof (size_t) - 1))
|
|
|
|
/* POSIX-defined msghdr manipulation. */
|
|
|
|
#define NN_CMSG_FIRSTHDR(mhdr) \
|
|
nn_cmsg_nxthdr_ ((struct nn_msghdr*) (mhdr), NULL)
|
|
|
|
#define NN_CMSG_NXTHDR(mhdr, cmsg) \
|
|
nn_cmsg_nxthdr_ ((struct nn_msghdr*) (mhdr), (struct nn_cmsghdr*) (cmsg))
|
|
|
|
#define NN_CMSG_DATA(cmsg) \
|
|
((unsigned char*) (((struct nn_cmsghdr*) (cmsg)) + 1))
|
|
|
|
/* Extensions to POSIX defined by RFC 3542. */
|
|
|
|
#define NN_CMSG_SPACE(len) \
|
|
(NN_CMSG_ALIGN_ (len) + NN_CMSG_ALIGN_ (sizeof (struct nn_cmsghdr)))
|
|
|
|
#define NN_CMSG_LEN(len) \
|
|
(NN_CMSG_ALIGN_ (sizeof (struct nn_cmsghdr)) + (len))
|
|
|
|
/* SP address families. */
|
|
#define AF_SP 1
|
|
#define AF_SP_RAW 2
|
|
|
|
/* Max size of an SP address. */
|
|
#define NN_SOCKADDR_MAX 128
|
|
|
|
/* Socket option levels: Negative numbers are reserved for transports,
|
|
positive for socket types. */
|
|
#define NN_SOL_SOCKET 0
|
|
|
|
/* Generic socket options (NN_SOL_SOCKET level). */
|
|
#define NN_LINGER 1
|
|
#define NN_SNDBUF 2
|
|
#define NN_RCVBUF 3
|
|
#define NN_SNDTIMEO 4
|
|
#define NN_RCVTIMEO 5
|
|
#define NN_RECONNECT_IVL 6
|
|
#define NN_RECONNECT_IVL_MAX 7
|
|
#define NN_SNDPRIO 8
|
|
#define NN_RCVPRIO 9
|
|
#define NN_SNDFD 10
|
|
#define NN_RCVFD 11
|
|
#define NN_DOMAIN 12
|
|
#define NN_PROTOCOL 13
|
|
#define NN_IPV4ONLY 14
|
|
#define NN_SOCKET_NAME 15
|
|
#define NN_RCVMAXSIZE 16
|
|
|
|
/* Send/recv options. */
|
|
#define NN_DONTWAIT 1
|
|
|
|
/* Ancillary data. */
|
|
#define PROTO_SP 1
|
|
#define SP_HDR 1
|
|
|
|
NN_EXPORT int nn_socket (int domain, int protocol);
|
|
NN_EXPORT int nn_close (int s);
|
|
NN_EXPORT int nn_setsockopt (int s, int level, int option, const void *optval,
|
|
size_t optvallen);
|
|
NN_EXPORT int nn_getsockopt (int s, int level, int option, void *optval,
|
|
size_t *optvallen);
|
|
NN_EXPORT int nn_bind (int s, const char *addr);
|
|
NN_EXPORT int nn_connect (int s, const char *addr);
|
|
NN_EXPORT int nn_shutdown (int s, int how);
|
|
NN_EXPORT int nn_send (int s, const void *buf, size_t len, int flags);
|
|
NN_EXPORT int nn_recv (int s, void *buf, size_t len, int flags);
|
|
NN_EXPORT int nn_sendmsg (int s, const struct nn_msghdr *msghdr, int flags);
|
|
NN_EXPORT int nn_recvmsg (int s, struct nn_msghdr *msghdr, int flags);
|
|
|
|
/******************************************************************************/
|
|
/* Socket mutliplexing support. */
|
|
/******************************************************************************/
|
|
|
|
#define NN_POLLIN 1
|
|
#define NN_POLLOUT 2
|
|
|
|
struct nn_pollfd {
|
|
int fd;
|
|
short events;
|
|
short revents;
|
|
};
|
|
|
|
NN_EXPORT int nn_poll (struct nn_pollfd *fds, int nfds, int timeout);
|
|
|
|
/******************************************************************************/
|
|
/* Built-in support for devices. */
|
|
/******************************************************************************/
|
|
|
|
NN_EXPORT int nn_device (int s1, int s2);
|
|
|
|
/******************************************************************************/
|
|
/* Built-in support for multiplexers. */
|
|
/******************************************************************************/
|
|
|
|
NN_EXPORT int nn_tcpmuxd (int port);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#include "pair.h"
|
|
#include "bus.h"
|
|
#include "pubsub.h"
|
|
#include "reqrep.h"
|
|
#include "survey.h"
|
|
#include "pipeline.h"
|
|
|
|
#endif
|
|
|
|
|