drop errlogstream

unnecessary complication

common/errlogstream.h

@@ -1,80 +0,0 @@
-#ifndef ERRLOGSTREAM_H
-#define ERRLOGSTREAM_H
-
-#include <streambuf>
-#include <ostream>
-#include <vector>
-#include <algorithm>
-
-#include <assert.h>
-
-#include <errlog.h>
-
-//! output only stream buffer which write to the epics errlog
-struct errlog_streambuf : public std::streambuf
-{
-    typedef std::vector<char> buffer_t;
-
-    errlog_streambuf(bool block=false, size_t blen=126)
-        :std::streambuf()
-        ,p_outbuf(std::max(blen, size_t(16u))+2)
-        ,p_block(block)
-    {
-        p_reset();
-    }
-    virtual ~errlog_streambuf() {sync();}
-    virtual int_type overflow(int_type c)
-    {
-        size_t nwrite = pptr()-pbase();
-        assert(nwrite<p_outbuf.size()-1);
-        if(c!=traits_type::eof()) {
-            p_outbuf[nwrite++] = traits_type::to_char_type(c);
-        }
-        p_flush(nwrite);
-        p_reset();
-        return traits_type::not_eof(c);
-    }
-
-    //! flush local buffer to global errlog buffer.
-    //! if block=true then also calls errlogFlush()
-    virtual int sync()
-    {
-        size_t nwrite = pptr()-pbase();
-        assert(nwrite<p_outbuf.size()-1);
-        p_flush(nwrite);
-        p_reset();
-        return 0;
-    }
-
-private:
-    void p_reset()
-    {
-        char *B = &p_outbuf[0];
-        setp(B, B+p_outbuf.size()-2); // reserve one char for overflow()s arg and one for nil
-    }
-    void p_flush(size_t nwrite)
-    {
-        if(nwrite) {
-            p_outbuf[nwrite++] = '\0';
-            errlogMessage(&p_outbuf[0]);
-            if(p_block)
-                errlogFlush();
-        }
-    }
-
-    buffer_t p_outbuf;
-    bool p_block;
-};
-
-struct errlog_ostream : public std::ostream
-{
-    errlog_ostream(bool block=false, size_t blen=126)
-        :std::ostream(&p_strm)
-        ,p_strm(block, blen)
-    {}
-    virtual ~errlog_ostream() {}
-private:
-    errlog_streambuf p_strm;
-};
-
-#endif // ERRLOGSTREAM_H