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Commit 6cf07651 authored by Martin Sustrik's avatar Martin Sustrik
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C-style comments in zmq.h

parent 00cf3ceb
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Showing with 57 additions and 71 deletions
include/zmq.h
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......@@ -30,7 +30,7 @@ extern "C" {
#include "winsock2.h"
#endif
// Microsoft Visual Studio uses non-standard way to export/import symbols.
/* Microsoft Visual Studio uses non-standard way to export/import symbols. */
#if defined ZMQ_BUILDING_LIBZMQ_WITH_MSVC
#define ZMQ_EXPORT __declspec(dllexport)
#elif defined _MSC_VER
......@@ -39,21 +39,21 @@ extern "C" {
#define ZMQ_EXPORT
#endif
////////////////////////////////////////////////////////////////////////////////
// 0MQ versioning supprt.
////////////////////////////////////////////////////////////////////////////////
/******************************************************************************/
/* 0MQ versioning supprt. */
/******************************************************************************/
ZMQ_EXPORT void zmq_version (int *major, int *minor, int *patch);
////////////////////////////////////////////////////////////////////////////////
/******************************************************************************/
// 0MQ errors.
////////////////////////////////////////////////////////////////////////////////
/******************************************************************************/
// A number random anough not to collide with different errno ranges on
// different OSes. The assumption is that error_t is at least 32-bit type.
/* A number random anough 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.
/* On Windows platform some of the standard POSIX errnos are not defined. */
#ifndef ENOTSUP
#define ENOTSUP (ZMQ_HAUSNUMERO + 1)
#endif
......@@ -79,38 +79,44 @@ ZMQ_EXPORT void zmq_version (int *major, int *minor, int *patch);
#define EINPROGRESS (ZMQ_HAUSNUMERO + 8)
#endif
// Native 0MQ error codes.
/* Native 0MQ error codes. */
#define EMTHREAD (ZMQ_HAUSNUMERO + 50)
#define EFSM (ZMQ_HAUSNUMERO + 51)
#define ENOCOMPATPROTO (ZMQ_HAUSNUMERO + 52)
// Resolves system errors and 0MQ errors to human-readable string.
/* 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 ();
/* Resolves system errors and 0MQ errors to human-readable string. */
ZMQ_EXPORT const char *zmq_strerror (int errnum);
////////////////////////////////////////////////////////////////////////////////
// 0MQ message definition.
////////////////////////////////////////////////////////////////////////////////
/******************************************************************************/
/* 0MQ message definition. */
/******************************************************************************/
// Maximal size of "Very Small Message". VSMs are passed by value
// to avoid excessive memory allocation/deallocation.
// If VMSs larger than 255 bytes are required, type of 'vsm_size'
// field in zmq_msg_t structure should be modified accordingly.
/* Maximal size of "Very Small Message". VSMs are passed by value */
/* to avoid excessive memory allocation/deallocation. */
/* If VMSs larger than 255 bytes are required, type of 'vsm_size' */
/* field in zmq_msg_t structure should be modified accordingly. */
#define ZMQ_MAX_VSM_SIZE 30
// Message types. These integers may be stored in 'content' member of the
// message instead of regular pointer to the data.
/* Message types. These integers may be stored in 'content' member of the */
/* message instead of regular pointer to the data. */
#define ZMQ_DELIMITER 31
#define ZMQ_VSM 32
// Message flags. ZMQ_MSG_SHARED is strictly speaking not a message flag
// (it has no equivalent in the wire format), however, making it a flag
// allows us to pack the stucture tigher and thus improve performance.
/* Message flags. ZMQ_MSG_SHARED is strictly speaking not a message flag */
/* (it has no equivalent in the wire format), however, making it a flag */
/* allows us to pack the stucture tigher and thus improve performance. */
#define ZMQ_MSG_MORE 1
#define ZMQ_MSG_SHARED 128
// A message. Note that 'content' is not a pointer to the raw data.
// Rather it is pointer to zmq::msg_content_t structure
// (see src/msg_content.hpp for its definition).
/* A message. Note that 'content' is not a pointer to the raw data. */
/* Rather it is pointer to zmq::msg_content_t structure */
/* (see src/msg_content.hpp for its definition). */
typedef struct
{
void *content;
......@@ -131,32 +137,20 @@ 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);
////////////////////////////////////////////////////////////////////////////////
// 0MQ infrastructure (a.k.a. context) initialisation & termination.
////////////////////////////////////////////////////////////////////////////////
/******************************************************************************/
/* 0MQ infrastructure (a.k.a. context) initialisation & termination. */
/******************************************************************************/
#define ZMQ_POLL 1
ZMQ_EXPORT void *zmq_init (int app_threads, int io_threads, int flags);
ZMQ_EXPORT int zmq_term (void *context);
////////////////////////////////////////////////////////////////////////////////
// 0MQ socket definition.
////////////////////////////////////////////////////////////////////////////////
// Addresses are composed of the name of the protocol to use followed by ://
// and a protocol-specific address. Available protocols:
//
// tcp - the address is composed of IP address and port delimited by colon
// sign (:). The IP address can be a hostname (with 'connect') or
// a network interface name (with 'bind'). Examples "tcp://eth0:5555",
// "tcp://192.168.0.1:20000", "tcp://hq.mycompany.com:80".
//
// pgm & udp - both protocols have same address format. It's network interface
// to use, semicolon (;), multicast group IP address, colon (:) and
// port. Examples: "pgm://eth2;224.0.0.1:8000",
// "udp://192.168.0.111;224.1.1.1:5555".
/******************************************************************************/
/* 0MQ socket definition. */
/******************************************************************************/
/* Socket types. */
#define ZMQ_P2P 0
#define ZMQ_PUB 1
#define ZMQ_SUB 2
......@@ -167,6 +161,7 @@ ZMQ_EXPORT int zmq_term (void *context);
#define ZMQ_UPSTREAM 7
#define ZMQ_DOWNSTREAM 8
/* Socket options. */
#define ZMQ_HWM 1
#define ZMQ_LWM 2
#define ZMQ_SWAP 3
......@@ -181,9 +176,10 @@ ZMQ_EXPORT int zmq_term (void *context);
#define ZMQ_RCVBUF 12
#define ZMQ_RCVMORE 13
/* Send/recv options. */
#define ZMQ_NOBLOCK 1
#define ZMQ_SNDMORE 2
// Obsolete:
/* Obsolete. To be removed in 2.0.7 release. */
#define ZMQ_MORE 2
ZMQ_EXPORT void *zmq_socket (void *context, int type);
......@@ -197,9 +193,9 @@ ZMQ_EXPORT int zmq_connect (void *s, const char *addr);
ZMQ_EXPORT int zmq_send (void *s, zmq_msg_t *msg, int flags);
ZMQ_EXPORT int zmq_recv (void *s, zmq_msg_t *msg, int flags);
////////////////////////////////////////////////////////////////////////////////
// I/O multiplexing.
////////////////////////////////////////////////////////////////////////////////
/******************************************************************************/
/* I/O multiplexing. */
/******************************************************************************/
#define ZMQ_POLLIN 1
#define ZMQ_POLLOUT 2
......@@ -219,19 +215,9 @@ typedef struct
ZMQ_EXPORT int zmq_poll (zmq_pollitem_t *items, int nitems, long timeout);
////////////////////////////////////////////////////////////////////////////////
// Experimental.
////////////////////////////////////////////////////////////////////////////////
// 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
// compiled with different CRT library.
ZMQ_EXPORT int zmq_errno ();
////////////////////////////////////////////////////////////////////////////////
// Devices - Experimental
////////////////////////////////////////////////////////////////////////////////
/******************************************************************************/
/* Devices - Experimental. */
/******************************************************************************/
#define ZMQ_STREAMER 1
#define ZMQ_FORWARDER 2
......@@ -239,21 +225,21 @@ ZMQ_EXPORT int zmq_errno ();
ZMQ_EXPORT int zmq_device (int device, void * insocket, void* outsocket);
////////////////////////////////////////////////////////////////////////////////
// Helper functions.
////////////////////////////////////////////////////////////////////////////////
/******************************************************************************/
/* Helper functions. */
/******************************************************************************/
// Helper functions are used by perf tests so that they don't have to care
// about minutiae of time-related functions on different OS platforms.
/* Helper functions are used by perf tests so that they don't have to care */
/* about minutiae of time-related functions on different OS platforms. */
// Starts the stopwatch. Returns the handle to the watch.
/* Starts the stopwatch. Returns the handle to the watch. */
ZMQ_EXPORT void *zmq_stopwatch_start ();
// Stops the stopwatch. Returns the number of microseconds elapsed since
// the stopwatch was started.
/* Stops the stopwatch. Returns the number of microseconds elapsed since */
/* the stopwatch was started. */
ZMQ_EXPORT unsigned long zmq_stopwatch_stop (void *watch_);
// Sleeps for specified number of seconds.
/* Sleeps for specified number of seconds. */
ZMQ_EXPORT void zmq_sleep (int seconds_);
#ifdef __cplusplus
......
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