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/*************************************************************************
*
* HTCd - Copyright (C) 1998-2006 Henrik Rydberg
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <mt/mstream.h>
#include <poll.h>
#include <signal.h>
const char cvt_form_f[]="%#.12f";
const int MSEC=4000;
sref ftoa(sref_t& buf,double f)
{
char* e=buf+sprintf(buf,cvt_form_f,f)-1;
while(*e=='0') e--; if(*e=='.') e--;
return sref(buf,e-buf+1);
}
///////////////////////////////////////////////////////////
int mstream::appc(char c) { return -1; }
int mstream::appi(int i) { return -1; }
int mstream::appf(double f) { return -1; }
int mstream::apps(const sref& s) { return -1; }
///////////////////////////////////////////////////////////
int cvt_stream::appi(int i) { sref_t buf; return apps(itoa(buf,i)); }
int cvt_stream::appf(double f) { sref_t buf; return apps(ftoa(buf,f)); }
///////////////////////////////////////////////////////////
int fp_stream::appc(char c) { return putc(c,fp)<0?-1:1; }
int fp_stream::apps(const sref& s) { return fwrite(s.data(),s.size(),1,fp); }
///////////////////////////////////////////////////////////
int fd_stream::appc(char c) { return ::write(fd,&c,1); }
int fd_stream::apps(const sref& s) { return ::write(fd,s.data(),s.size()); }
///////////////////////////////////////////////////////////
int pipe_stream::appc(char c) { return mwrite(&c,1); }
int pipe_stream::apps(const sref& s) { return mwrite(s.data(),s.size()); }
int pipe_stream::mwrite(const char* s,int n)
{
int old=n;
while(n>0&&!hup) {
pollfd pfd={fd,POLLOUT,0};
if(::poll(&pfd,1,MSEC)<0) return hup=-1;
int m=::write(fd,s,n);
if(m<0) return hup=-1;
s+=m; n-=m;
}
return hup?-1:old;
}
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