Re: [boost] Can any one help me with this fstream

Subject: Re: [boost] Can any one help me with this fstream
From: Roman Kecher (roman.kecher_at_[hidden])
Date: 2010-01-02 04:13:08

The problem is that std::fstream objects are _not_ designed to be copied.
You can read more here:
http://en.allexperts.com/q/C-1040/fstream-class-member.htm

On Fri, Jan 1, 2010 at 7:16 PM, ch.asad_at_[hidden] <ch.asad_at_[hidden]> wrote:

>
> Hi i am new to boost. i have written a code. can any one guide me whats the
> issue with this code.
>
> It gives an error when I assign the File pointer to a Global poiter.
> "
>                        h_file = file;
>                        h_str  = str;
> "
>
> Can any one guide me whats the issue with this and how cna i solve this
> issue.
>
> thanks,
> Asad
>
> // Accelor-test.cpp : Defines the entry point for the console application.
> //
> #include <iostream>
> #include <string>
> #include <fstream>
> #include <string>
> #include <vector>
> #include <iostream>
> #include <iterator>
> #include <functional>
> #include <boost/asio.hpp>
> #include <boost/algorithm/string/classification.hpp>
> #include <boost/algorithm/string/split.hpp>
> #include <boost/algorithm/string/find_iterator.hpp>
> #include <boost/thread/thread.hpp>
>
> using boost::asio::ip::tcp;
> using namespace std;
> using namespace boost;
>
>
> std::fstream h_file;
> int hb;
> int cnt;
> tcp::iostream h_str;
>
> //boost::mutex mutex;
> void Accelor_test()
> {
>                        std::cout<<"\nAPP started ...\n";
>                        char ver[100];
>                        char s1[100];
>                        vector<std::string> strng,st,u_p;
>                        //int ef;
>
>                        h_str.read(ver,sizeof(ver));
>                        std::cout<<" INBOUND : Version read : "
> <<ver<<std::endl;
>                        h_file.getline(s1,sizeof(s1));
>                        std::cout<<s1<<std::endl;
>
>
>
>
> }
> void send_HB()
> {
>                std::cout<<"\nHeart Beat Started...";
>  //  boost::mutex::scoped_lock lock(mutex);
>                char h_b[] = "HB\n";
>            for(;;)
>                {
>                        boost::xtime xt;
>                        boost::xtime_get(&xt, boost::TIME_UTC);
>                        xt.sec += 1;
>                        h_str.write(h_b,sizeof(h_b));
>                        boost::thread::sleep(xt);
>
>                        std::cout <<"OUTBOUND : HB ,"<< ++cnt << std::endl;
>                }
> }
>
> int main(int argc, char* argv[])
> {
>                        std::fstream file =
> std::fstream("inttest_sample.csv",std::fstream::in);
>                        if(h_file == NULL)
>                        {
>                                std::cout<<"File not found";
>
>                        }
>                        char s1[100];
>                        vector<std::string> conf,connection,u_p;
>                        int ef;
>
>                        h_file.getline(s1,sizeof(s1));
>
>                        std::cout<<"s1 = "<<s1<<endl;
>                        std::cout<<"Split Conf";
>                        split(conf, s1, is_any_of(","), token_compress_on);
>                        split(connection, conf[0], is_any_of(":"),
> token_compress_on);
>                        tcp::iostream str(connection[0],connection[1]);
>
>                        h_file = file;
>                        h_str  = str;
>
>
>
>
>
>        boost::thread thrd_hb(&send_HB);
>        boost::thread thrd_acc(&Accelor_test);
>    thrd_hb.join();
>        thrd_acc.join();
>
>        file.close();
>        str.close();
>        //std::cout<<"kjdshkjf";
> }
>
>
> --
> View this message in context:
> http://old.nabble.com/Can-any-one-help-me-with-this-fstream-tp26986763p26986763.html
> Sent from the Boost - Dev mailing list archive at Nabble.com.
>
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