#include <string>
#include <vector>

#include <unistd.h>

namespace op59_net
{
    /* don't know what other OS's support profil(). presumably
    NetBSD and FreeBSD. Cygwin doesn't. 
    On OpenBSD, see profil(2). */
    #ifdef __OpenBSD__
        struct scoped_profil
        {
            scoped_profil( 
                size_t              buffer_size0, 
                u_long              offset0, 
                u_int               scale0);
            /* starts profil(1) profiling. */
            
            void
                stop();
            /* stops profil(1) profiling.  */

            void
                output(
                    const std::string& exe0, 
                    const std::string& outfile0);
            /* calls stop(), and then outputs detailed prof info
            to `outfile0', using `nm' command to get layout information
            about the current executable, filename exe0. i.e. pass
            main()'s argv[0] as exe0. */

            ~scoped_profil();
            /* calls stop(). */

            std::string         exe;
            u_long              offset;
            u_long              scale;
            std::vector< char>  buffer;
            std::string         outfile;
            bool                running;
        };

    #else
        struct scoped_profil
        {
            scoped_profil( 
                size_t, 
                u_long, 
                u_int)
            {}

            void
                stop()
            {}

            void output(
                const std::string&, 
                const std::string&)
            {}

            ~scoped_profil()
            {}
        };
    #endif
}