From 289546c93875470ba7064242825e0925ea7bf100 Mon Sep 17 00:00:00 2001 From: Dale Mellor Date: Tue, 21 Jan 2020 10:55:51 +0000 Subject: [PATCH] Version 1.0 --- AUTHORS | 0 COPYING | 674 +++++++++++++++++++++++++++++++++++ ChangeLog | 0 INSTALL | 368 +++++++++++++++++++ NEWS | 0 README | 0 configure.ac | 37 ++ dmbcs-market-data-api.pc.in | 11 + dmbcs-market-data-api.texi | 339 ++++++++++++++++++ fdl.texi | 505 ++++++++++++++++++++++++++ makefile.am | 35 ++ src/dmbcs-market-data-api.cc | 179 ++++++++++ src/dmbcs-market-data-api.h | 124 +++++++ src/makefile.am | 6 + 14 files changed, 2278 insertions(+) create mode 100644 AUTHORS create mode 100644 COPYING create mode 100644 ChangeLog create mode 100644 INSTALL create mode 100644 NEWS create mode 100644 README create mode 100644 configure.ac create mode 100644 dmbcs-market-data-api.pc.in create mode 100644 dmbcs-market-data-api.texi create mode 100644 fdl.texi create mode 100644 makefile.am create mode 100644 src/dmbcs-market-data-api.cc create mode 100644 src/dmbcs-market-data-api.h create mode 100644 src/makefile.am diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..e69de29 diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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FILE defaults to '/dev/null' to + disable caching. + +'--config-cache' +'-C' + Alias for '--cache-file=config.cache'. + +'--quiet' +'--silent' +'-q' + Do not print messages saying which checks are being made. To + suppress all normal output, redirect it to '/dev/null' (any error + messages will still be shown). + +'--srcdir=DIR' + Look for the package's source code in directory DIR. Usually + 'configure' can determine that directory automatically. + +'--prefix=DIR' + Use DIR as the installation prefix. *note Installation Names:: for + more details, including other options available for fine-tuning the + installation locations. + +'--no-create' +'-n' + Run the configure checks, but stop before creating any output + files. + +'configure' also accepts some other, not widely useful, options. Run +'configure --help' for more details. diff --git a/NEWS b/NEWS new file mode 100644 index 0000000..e69de29 diff --git a/README b/README new file mode 100644 index 0000000..e69de29 diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..58fe010 --- /dev/null +++ b/configure.ac @@ -0,0 +1,37 @@ +# -*- Autoconf -*- +# Process this file with autoconf to produce a configure script. + +AC_PREREQ([2.69]) +AC_INIT([dmbcs-market-data-api], [1.0], [https://rdmp.org/dmbcs/contact]) +AM_INIT_AUTOMAKE([silent-rules subdir-objects]) +AM_SILENT_RULES([yes]) +LT_INIT +AC_CONFIG_SRCDIR([src/dmbcs-market-data-api.cc]) +AC_CONFIG_MACRO_DIRS([m4]) + +# Checks for programs. +AC_PROG_CXX +AC_PROG_AWK +AC_PROG_CC +AC_PROG_CPP +AC_PROG_INSTALL +AC_PROG_LN_S +AC_PROG_MAKE_SET + +# Checks for libraries. +PKG_CHECK_MODULES([third_party], [curlpp openssl]) + +# Checks for header files. + +# Checks for typedefs, structures, and compiler characteristics. +AC_CHECK_HEADER_STDBOOL +AC_C_INLINE +AC_TYPE_SIZE_T + +# Checks for library functions. +AC_FUNC_STRTOD + +AC_CONFIG_FILES([makefile + src/makefile + dmbcs-market-data-api.pc]) +AC_OUTPUT diff --git a/dmbcs-market-data-api.pc.in b/dmbcs-market-data-api.pc.in new file mode 100644 index 0000000..ab39957 --- /dev/null +++ b/dmbcs-market-data-api.pc.in @@ -0,0 +1,11 @@ +prefix = @prefix@ +exec_prefix = ${prefix} +libdir = ${exec_prefix}/lib +includedir = ${prefix}/include + +Name : dmbcs-market-data-api +Description : DMBCS Market Data Service C++ interface library +Version : @VERSION@ +Requires : curlpp openssl +Libs : -L${libdir} -ldmbcs-market-data-api @third_party_LIBS@ +Cflags : -I${includedir} @third_party_CFLAGS@ diff --git a/dmbcs-market-data-api.texi b/dmbcs-market-data-api.texi new file mode 100644 index 0000000..abac2bc --- /dev/null +++ b/dmbcs-market-data-api.texi @@ -0,0 +1,339 @@ +\input texinfo @c -*-texinfo-*- +@c %**start of header +@setfilename dmbcs-market-data-api.info +@settitle DMBCS Market Data Server API +@documentencoding utf-8 +@c %**end of header +@copying +DMBCS Market Data Server API + +Copyright @copyright{} 2020 DM Bespoke Computer Solutions Ltd + +@quotation +Permission is granted to copy, distribute and/or modify this document +under the terms of the GNU Free Documentation License, Version 1.3 or +any later version published by the Free Software Foundation; with no +Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A +copy of the license is included in the section entitled ``GNU Free +Documentation License''. + +A copy of the license is also available from the Free Software +Foundation Web site at @url{http://www.gnu.org/licenses/fdl.html}. + +@end quotation +@end copying + +@titlepage +@title DMBCS Market Data Server API 1.0 +@author Dale Mellor +@page +@vskip 0pt plus 1filll +@insertcopying +@end titlepage + +@ifnottex +@node Top, Introduction, (dir), (dir) +@top DMBCS Market Data Server API 1.0 + +@insertcopying +@end ifnottex + +@c Generate the nodes for this menu with `C-c C-u C-m'. +@menu +* Introduction:: +* Installation of the library:: +* Use example:: +* Detailed reference:: +* Copying This Manual:: +* Function index:: +* Index:: +@end menu + +@c Update all node entries with `C-c C-u C-n'. +@c Insert new nodes with `C-c C-c n'. + +@contents + +@node Introduction, Installation of the library, Top, Top +@chapter Introduction +@section The DMBCS Market Data Service + +While there are several open APIs available on the Internet for fetching +stock market trading data, there are scant few which provide data of the +markets themselves, in particular it is quite difficult to +programmatically get an enumeration of all the components of a +particular market from the Internet. + +The DMBCS Market Data service provides this facility, offering two +end-points which enumerate all markets known to the system and all +components of any given market. The service provides a RESTful API which +is currently freely available without registration. More information +can be found at @url{https://rdmp.org/dmbcs/trader-desk}. + + +@section The C++ Library + +This is a small library (about 140 physical source lines of code) which +should be taken both as a production library and reference +implementation of the protocol which the DMBCS Market Data service +expects clients to implement. + + +@section ‘DMBCS’? + +@cindex DMBCS namespace +@cindex DMBCS discriminator +This isnʼt a vanity or promotional project with any kind of commercial +restriction, it is something that was needed and is being shared so that +others can benefit from the effort that has been spent on the +development, and maybe improve upon it. + +@cindex GNU license +It is not our wish to preclude the development of alternative libraries +which meet the same goals as ours, and if such were to materialize we +need a way to refer to our own implementation specifically and allow it +to sit in harmony with any other library that might come along. So we +use ‘DMBCS’ to provide our distinguishing label: this is appended to the +front of the package name, and all of the C++ code comes inside a +namespace with this label. These should be considered to be five random +letters: okay, they are abbreviated from DM Bespoke Computer Solutions +Ltd, the original authorʼs company, but the project is released as fully +free, open source software (FOSS) which falls under the GNU GPLv3 +license, so you should treat it as any other component in your free, +open operating system (@emph{Please} donʼt tell me you actually pay +money for some inferior OS beyond the eyes of humble scrutineers). + + +@node Installation of the library, Use example, Introduction, Top +@chapter Installation of the library + +@cindex GIT +@cindex code repository +You will require the @code{git} code management system. At the +terminal, type + +@code{git clone https://rdmp.org/dmbcs/market-data-api.git dmbcs-market-data-api}, + +and then you will have a newly created directory called +@code{dmbcs-market-data-api} which contains the full source code for the +program. Type @code{cd dmbcs-market-data-api} to enter that directory. + +@cindex autotools +@cindex autoconf +@cindex automake +@cindex libtool +@cindex pkg-config +The libraryʼs build configuration system is GNUʼs @code{autotools}. You +will need @code{autoconf}, @code{automake}, and @code{libtool}, and +@code{pkg-config}. At the terminal, type + +@code{autoreconf --install; ./configure}. + +@cindex openssl +@cindex curl +@cindex curlpp +You may at this point see errors relating to lack of openssl, curl, +curlpp packages. You must address these issues in your operating system +and perform a successful @code{./configure} before you can proceed with +the dmbcs-market-data-api build. + +@cindex make +@cindex non-privileged install +The libraryʼs build is undertaken by GNU make. You will need the +@code{make} package on your system (GNU make is probably not necessary, +any modern incarnation of make will most likely suffice). Type +@code{make && sudo make install} to build and install the library in +your system. Note that the sudo command will require that you have +sufficient privilege on your system, and you may have to type in your +system password (for a local build not requiring such privilege, in a +pinch, do @code{./configure --prefix=install-here && make install}). + +That should be it. Try making and running the example program described +below (Section 3). + +@node Use example, Detailed reference, Installation of the library, Top +@chapter Use example + +To get a summary of the current list of markets the server knows about, +write the following C++ code + +@cindex @sortas{H} ``hello, world'' example +@findex get_markets +@example +#include +#include + +int main () +@{ + cURLpp::initialize (); + const auto markets @{DMBCS::Market_Data_Api::get_markets ()@}; + for (const auto& M : markets) + std::cout << M.symbol << ": " << M.name << "\n"; + return 0; +@} +@end example + +@cindex application compilation +@cindex compilation +If this code is stored in a file called @code{markets.cc}, compile it +with a line like (this should be typed all on one line, without the +back-slash) +@example +g++ $( pkg-config --cflags --libs dmbcs-market-data-api ) \ + a.cc -o markets +@end example +and then you will have an executable file called @code{markets}. (If +you installed the library in a non-standard place, you may need to +@code{export PKG_CONFIG_PATH=/lib/pkgconfig} prior to running the +g++ command, and then setting @code{LD_LIBRARY_PATH}.) Run this and +observe the result in your terminal (provided that your internet +connection is okay); you should see a list of symbols and human-readable +names of various stock markets). + +If this doesnʼt work for you, you either havenʼt installed +dmbcs-market-data-api properly yet (see instructions in Section 2 +above), or you need to improve your operating system, or get a better +one; this is as far as we hand-hold you here. + +@node Detailed reference, Copying This Manual, Use example, Top +@chapter Detailed reference + +@cindex libcurlpp initialization +An important point of note. This library uses libcurlpp, and +@emph{assumes that that library has been initialized}. See the example +code above for an idea how to do this (it must be done exactly once in +your application). + +@cindex library initialization +Note that the @code{dmbcs-market-data-api} library itself requires no +explicit global initialization or finalization. + +@cindex thread safety +The library is not thread safe; there are severe limits to the volume +and regularity of data transfer through the Market Data API, and, given +the turn-around times of the accesses, access to the library should be +considered a strictly serial activity for which parallelism has no +purpose. If, however, delayed blocking behaviour is unsatisfactory for +your application and you need to realize asynchronous communications +channels with the Exchange, running the @code{dmbcs-market-data-api} +entirely in a thread separate from the main one would be appropriate. + +@section Exceptions + +The @code{dmbcs-market-data-api} client library may throw two +exceptions, @emph{both derived from @code{std::runtime_error}}: +@code{DMBCS::Market_Data_Api::No_Network} and +@code{DMBCS::Market_Data_Api::Bad_Communication}. Both these will +convey the implied meaning, and will be furnished with human-readable +error messages (via the @code{what()} methods) that clarify the +situation. Note especially that @code{Bad_Communication} will be thrown +if the service refuses to provide data due to too many requests being +received in a short time interval. + +@section Enumerating the markets + +@subsection The @code{Market} object + +This is a pure @code{struct} with the following members. + +@table @code +@item string symbol +The string by which the Market Data Server identifies this market. It +should be passed to the @code{get_component_delta} function, for +example. + +@item string component_extension +The symbol which Yahoo! appends to all stock items after a period. For +example @code{BP.L} is the ticker symbol for BP on the London stock +exchange, hence the market symbol is ``@code{L}''. + +@item string name +Human-readable, although terse, string which identifies the market, +e.g. ``FTSE 100''. + +@item std::chrono::system_clock::duration close_time +The time interval after midnight at which the market closes each day. +This should be regarded as indicative only and will not account for +extraordinary days or other variations. + +@end table + +@subsection The @code{get_markets} function +@findex get_markets +Simply calling the @code{DMBCS::Market_Data_Api::get_markets ()} +function will return a STL container full of @code{Market} objects, each +describing one of the markets the server follows, the collection +enumerating all of the markets that the server follows. + + +@subsection The @code{Delta} object +This is a pure @code{struct} which describes @emph{changes} in the +components of a market, such as additions, removals and sideways +movements. The members are + +@table @code +@item string symbol +The @emph{Yahoo!} ticker symbol for the component, sans any market +suffix. + +@item string name +A human-readable name of this component, i.e. company name. + +@item enum@{ADD, REMOVE, SIDEWAYS@} action +Has the company recently entered the market, or left it? Or perhaps +this is a sideways movement: change of name, symbol and/or market of a +market component already being tracked. + +@end table + +@subsection The @code{get_component_delta} function +@findex get_component_delta +This function returns a container of all the changes that have taken +place in the constitution of a market since a given time. Applications +are encouraged to keep track of the times that this function is called, +and only request changes since the last call. The precise signature of +the function is + +@code{std::vector DMBCS::Market_Data_Api::get_component_delta (const +string& market_symbol, const time_t& last_time);} + +where + +@table @code +@item const std::string& market_symbol +Identifies the market for which constituent changes are required. + +@item const time_t& last_time +Is the (UNIX) time from which changes need to be reported. + +@end table + +@findex get_component_delta +For example, + +@example + auto changes = DMBCS::Market_Data_Api::get_component_delta ("FTSE", 0); +@end example + +will list @emph{all} current components of the FTSE 100 listing. + + +@node Copying This Manual, Function index, Detailed reference, Top +@appendix Copying This Manual + +@c Get fdl.texi from http://www.gnu.org/licenses/fdl.html +@include fdl.texi + +@node Function index, Index, Copying This Manual, Top +@unnumbered Function index + +@printindex fn + +@node Index, , Function index, Top +@unnumbered Index + +@printindex cp + +@bye + +@c dmbcs-market-data-api.texi ends here diff --git a/fdl.texi b/fdl.texi new file mode 100644 index 0000000..eaf3da0 --- /dev/null +++ b/fdl.texi @@ -0,0 +1,505 @@ +@c The GNU Free Documentation License. +@center Version 1.3, 3 November 2008 + +@c This file is intended to be included within another document, +@c hence no sectioning command or @node. + +@display +Copyright @copyright{} 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc. +@uref{https://fsf.org/} + +Everyone is permitted to copy and distribute verbatim copies +of this license document, but changing it is not allowed. +@end display + +@enumerate 0 +@item +PREAMBLE + +The purpose of this License is to make a manual, textbook, or other +functional and useful document @dfn{free} in the sense of freedom: to +assure everyone the effective freedom to copy and redistribute it, +with or without modifying it, either commercially or noncommercially. +Secondarily, this License preserves for the author and publisher a way +to get credit for their work, while not being considered responsible +for modifications made by others. + +This License is a kind of ``copyleft'', which means that derivative +works of the document must themselves be free in the same sense. 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See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + + +SUBDIRS = src + +AM_MAKEINFOHTMLFLAGS = --no-split --css-ref=dmbcs-info.css + +info_TEXINFOS = dmbcs-market-data-api.texi +dmbcs_market_data_api_TEXINFOS = fdl.texi + +pkgconfigdir = $(libdir)/pkgconfig +pkgconfig_DATA = dmbcs-market-data-api.pc + +MAINTAINERCLEANFILES = aclocal.m4 compile config.guess config.sub \ + configure depcomp install-sh ltmain.sh \ + makefile.in missing texinfo.tex + +maintainer-clean-local : + rm -r m4 diff --git a/src/dmbcs-market-data-api.cc b/src/dmbcs-market-data-api.cc new file mode 100644 index 0000000..7c68ce9 --- /dev/null +++ b/src/dmbcs-market-data-api.cc @@ -0,0 +1,179 @@ +/* + * Copyright (c) 2020 Dale Mellor + * + * + * This file is part of the dmbcs-market-data-api package. + * + * The dmbcs-market-data-api package is free software: you can + * redistribute it and/or modify it under the terms of the GNU General + * Public License as published by the Free Software Foundation, either + * version 3 of the License, or (at your option) any later version. + * + * The trader-desk package 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see http://www.gnu.org/licenses/. + */ + + +#include "dmbcs-market-data-api.h" +#include +#include +#include + + +namespace DMBCS { namespace Market_Data_Api { + + + namespace Curl = cURLpp; + namespace Opt = Curl::Options; + + + +static string spacify (string&& x) + { + transform (begin (x), end (x), + begin (x), + [] (const unsigned char a) { return isspace (a) ? ' ' : a; }); + + return x; + } + + + +static string::const_iterator pass_version (const string& x) + { + static const regex head {"^ *'\\( *\\( *1( [^)]*)?\\)"}; + smatch m; + + if (! regex_search (x, m, head)) + { + if (x.substr (0, 2) == "'(") + throw Bad_Communication + {gettext ("please update this application to a later " + "version; new data communication protocols " + "have been seen")}; + else + throw Bad_Communication + {gettext ("service failed; probably you are trying " + "to make too many requests in a short time")}; + } + + return begin (x) + m [0].length (); + } + + + +static string get_curl_response (const string& query) + { + string response; + Curl::Easy request; + + request.setOpt (Opt::Url {query}); + + request.setOpt (Opt::WriteFunction + {[&response] (char* buffer, size_t size, size_t n) + { response += string {buffer, + buffer + size * n}; + return size * n; }}); + + request.setOpt (Opt::SslVerifyPeer {0}); + + request.perform (); + + if (response.empty ()) + throw No_Network {gettext ("got no CURL response")}; + + return spacify (move (response)); + } + + + +static vector get_markets (const string& url_endpoint) + try + { + const string response {get_curl_response (MARKET_SERVER_URL + + url_endpoint)}; + + vector ret; + + auto cursor {pass_version (response)}; + + static const regex re + { " *\\( *\"([^\"']+)\" *\"([^\"']*)\" *\"([^\"]+)\"" + " *([0-9]+(\\.[0-9]*)?)( [^)]*)?\\)" }; + + for (smatch match; ; ) + { + if (! regex_search (cursor, end (response), match, re, + regex_constants::match_continuous)) + return ret; + + ret.push_back + ({.symbol = match [1].str (), + .component_extension = match [2].str (), + .name = match [3].str (), + .close_time = chrono::minutes + (int (strtod (match [4].str ().data (), + nullptr) + * 60.0))}); + + cursor += match [0].length (); + } + } + catch (No_Network&) + { throw No_Network { gettext ("CURL got no markets meta-data")}; } + + + +vector get_markets () + { return get_markets ("markets"); } + + + +vector get_component_delta (const string& market_symbol, + const time_t& last_time) + try + { + ostringstream hold; + hold << MARKET_SERVER_URL + << "components?m=" << market_symbol + << "&t=" << last_time; + + const string response {get_curl_response (hold.str ())}; + + vector ret; + ret.reserve (500); + + auto cursor {pass_version (response)}; + + for (smatch m; ; ) + { + /* Remember that these fields are injected into a database, so + * be wary of unsanitary inputs. */ + static const regex part + {" *\\( *([^\"' ]+) *\"([^\"]+)\" *([-+*])( [^)]*)?\\)"}; + + if (! regex_search (cursor, end (response), m, part, + regex_constants::match_continuous)) + return ret; + + ret.push_back ({.symbol = m [1].str (), + .name = m [2].str (), + .action = m [3].str () == "+" ? Delta::ADD + : m [3].str () == "-" ? Delta::REMOVE + /* "*" */ : Delta::SIDEWAYS}); + + cursor += m [0].length (); + } + } + catch (No_Network &) + { throw No_Network {gettext ("CURL got no market component data")}; } + catch (Curl::RuntimeError &) + { return vector {}; } + + +} } /* End of namespace DMBCS::Trader_Desk. */ diff --git a/src/dmbcs-market-data-api.h b/src/dmbcs-market-data-api.h new file mode 100644 index 0000000..d52d7c8 --- /dev/null +++ b/src/dmbcs-market-data-api.h @@ -0,0 +1,124 @@ +/* + * Copyright (c) 2020 Dale Mellor + * + * + * This file is part of the dmbcs-market-data-api package. + * + * The dmbcs-market-data-api package is free software: you can + * redistribute it and/or modify it under the terms of the GNU General + * Public License as published by the Free Software Foundation, either + * version 3 of the License, or (at your option) any later version. + * + * The trader-desk package 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see http://www.gnu.org/licenses/. + */ + + +#ifndef DMBCS_MARKET_DATA_SERVER__H +#define DMBCS_MARKET_DATA_SERVER__H + + +#include +#include +#include +#include + + +/** \file + * + * Declaration of the \c Market_Data_Api namespace. */ + + +/** A namespace with two functions defined within it, corresponding to the + * two functions available at the /trader-desk/ market data server: one + * to get the list of markets, and one to get an incremental list of + * components in a single market. */ + +namespace DMBCS { namespace Market_Data_Api + { + using namespace std; + + + /** The functions will throw this if the network stack on the local + * machine cannot be made to work, most likely because the interfaces + * are down. */ + struct No_Network : runtime_error { using runtime_error::runtime_error; }; + + /** The functions will throw this if the remote server fails in any + * way to respond as expected. */ + struct Bad_Communication : runtime_error + { using runtime_error::runtime_error; }; + + + + static constexpr const char *const MARKET_SERVER_URL + = "https://rdmp.org:9443/trader-desk/"; + + + + /** A data vessel holding meta-data about a stock market. */ + struct Market + { + /** The marketʼs ticker symbol. */ + string symbol; + + /** The marketʼs extension to componentsʼ ticker symbols. */ + string component_extension; + + /** Human-readable, although terse, name of the market. */ + string name; + + /** The time after midnight at which this market closes. */ + chrono::system_clock::duration close_time; + }; + + /** Return a list of all the meta-data of all markets available from + * the server. */ + /* Assume curlpp has already been initialized. */ + vector get_markets (); + + + + /** A data vessel which denotes the addition or removal of a component + * of the market. */ + struct Delta + { + /** The Yahoo! API ticker symbol for the component, sans any market + * extension. */ + string symbol; + + /** A human-readable name of the company. */ + string name; + + /** Has the company recently entered the market, or left it? Or + * perhaps this is a sideways movement: change of name, symbol + * and/or market of a market component already being tracked. */ + enum {ADD, REMOVE, SIDEWAYS} action; + }; + + /** Get a list of market changes since \a last_time. */ + vector get_component_delta (const string& market_symbol, + const time_t& last_time); + + + /** We only want to hit the server occasionally (the data will not + * change more than once in any 24 hour period). This helper + * function determines whether the time \a t is too recent (short) to + * warrant hitting the server now. */ + inline bool short_time (const time_t& last_update) + { return time (nullptr) - 23 * 60 * 60 < last_update; } + + +} } /* End of namespace DMBCS::Market_Data_Server. */ + + +#include /* This is for the benefit of end-user + * clients. */ + + +#endif /* Undefined DMBCS_MARKET_DATA_SERVER__H. */ diff --git a/src/makefile.am b/src/makefile.am new file mode 100644 index 0000000..e5af917 --- /dev/null +++ b/src/makefile.am @@ -0,0 +1,6 @@ +lib_LTLIBRARIES = libdmbcs-market-data-api.la +include_HEADERS = dmbcs-market-data-api.h + +libdmbcs_market_data_api_la_SOURCES = dmbcs-market-data-api.cc + +MAINTAINERCLEANFILES = auto-config.h.in makefile.in