58 lines
2.0 KiB
OCaml
58 lines
2.0 KiB
OCaml
(***********************************************************************)
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(* *)
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(* Objective Caml *)
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(* *)
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(* Damien Doligez and Francois Rouaix, INRIA Rocquencourt *)
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(* Ported to Caml Special Light by John Malecki and Xavier Leroy *)
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(* *)
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(* Copyright 1996 Institut National de Recherche en Informatique et *)
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(* en Automatique. All rights reserved. This file is distributed *)
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(* under the terms of the GNU Library General Public License, with *)
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(* the special exception on linking described in file ../LICENSE. *)
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(* *)
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(***********************************************************************)
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(* $Id$ *)
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(* Run-time library for profiled programs *)
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type profiling_counters = (string * (string * int array)) list
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let counters = ref ([] : profiling_counters);;
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let incr a i = a.(i) <- a.(i) + 1;;
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exception Bad_profile
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let dump_counters () =
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let dumpfile =
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try Sys.getenv "OCAMLPROF_DUMP" with Not_found -> "ocamlprof.dump"
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in
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begin try
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let ic = open_in_bin dumpfile in
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let prevl = (input_value ic : profiling_counters) in
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close_in ic;
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List.iter2
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(fun (curname, (curmodes,curcount)) (prevname, (prevmodes,prevcount)) ->
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if curname <> prevname
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|| curmodes <> prevmodes
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|| Array.length curcount <> Array.length prevcount
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then raise Bad_profile)
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!counters prevl;
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List.iter2
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(fun (curname, (_,curcount)) (prevname, (_,prevcount)) ->
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for i = 0 to Array.length curcount - 1 do
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curcount.(i) <- curcount.(i) + prevcount.(i)
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done)
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!counters prevl
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with _ -> ()
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end;
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begin try
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let oc = open_out_bin dumpfile in
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output_value oc !counters;
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close_out oc
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with _ -> ()
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end
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let _ = at_exit dump_counters
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