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Diffstat (limited to 'testsuite/vests/vhdl-93/ashenden/compliant/ch_19_sink-b.vhd')
| -rw-r--r-- | testsuite/vests/vhdl-93/ashenden/compliant/ch_19_sink-b.vhd | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/testsuite/vests/vhdl-93/ashenden/compliant/ch_19_sink-b.vhd b/testsuite/vests/vhdl-93/ashenden/compliant/ch_19_sink-b.vhd new file mode 100644 index 0000000..8efbea0 --- /dev/null +++ b/testsuite/vests/vhdl-93/ashenden/compliant/ch_19_sink-b.vhd @@ -0,0 +1,101 @@ + +-- Copyright (C) 1996 Morgan Kaufmann Publishers, Inc + +-- This file is part of VESTs (Vhdl tESTs). + +-- VESTs 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. + +-- VESTs 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 VESTs; if not, write to the Free Software Foundation, +-- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +-- --------------------------------------------------------------------- +-- +-- $Id: ch_19_sink-b.vhd,v 1.2 2001-10-26 16:29:36 paw Exp $ +-- $Revision: 1.2 $ +-- +-- --------------------------------------------------------------------- + +library math; + +architecture behavior of sink is + +begin + + token_consumer : process is + + variable number_of_tokens_consumed : natural := 0; + variable life_time : real; -- in time_unit + variable sum_of_life_times : real := 0.0; -- in time_unit + variable sum_of_squares_of_life_times : real := 0.0; --in time_unit**2 + + use std.textio.all; + file info_file : text; + variable L : line; + + use math.math_real.sqrt; + + procedure write_summary is + variable mean_life_time : real + := sum_of_life_times / real(number_of_tokens_consumed); + variable std_dev_of_life_times : real + := sqrt ( ( sum_of_squares_of_life_times + - sum_of_life_times**2 / real(number_of_tokens_consumed) ) + / real( number_of_tokens_consumed - 1 ) ); + begin + write(L, string'("Summary information for sink ")); + write(L, name); + write(L, string'(" up to time ")); + write(L, now, unit => time_unit); + writeline(info_file, L); + write(L, string'(" Number of tokens consumed = ")); + write(L, natural(number_of_tokens_consumed)); + writeline(info_file, L); + write(L, string'(" Mean life_time = ")); + write(L, mean_life_time * time_unit, unit => time_unit); + writeline(info_file, L); + write(L, string'(" Standard deviation of life_times = ")); + write(L, std_dev_of_life_times * time_unit, unit => time_unit); + writeline(info_file, L); + writeline(info_file, L); + end procedure write_summary; + + procedure write_trace is + begin + write(L, string'("Sink ")); + write(L, name); + write(L, string'(": at ")); + write(L, now, unit => time_unit); + write(L, string'(" consumed ")); + write(L, in_arc.token, time_unit); + writeline(info_file, L); + end procedure write_trace; + + begin + file_open(info_file, info_file_name, write_mode); + loop + wait on info_detail'transaction, in_arc; + if info_detail'active and info_detail = summary then + write_summary; + end if; + if in_arc'event then + number_of_tokens_consumed := number_of_tokens_consumed + 1; + life_time := real( (now - in_arc.token.creation_time) / time_unit ); + sum_of_life_times := sum_of_life_times + life_time; + sum_of_squares_of_life_times := sum_of_squares_of_life_times + life_time ** 2; + if info_detail = trace then + write_trace; + end if; + end if; + end loop; + end process token_consumer; + +end architecture behavior; |