aboutsummaryrefslogtreecommitdiffstats
path: root/lib/pman/src/pman_buf.erl
diff options
context:
space:
mode:
authorDan Gudmundsson <[email protected]>2013-12-20 10:44:42 +0100
committerDan Gudmundsson <[email protected]>2013-12-20 10:44:42 +0100
commit6f0b3bd3fc28de703490470630922873775c97f5 (patch)
tree520b662b4459499e8c58b658285368d81334d326 /lib/pman/src/pman_buf.erl
parent0b68c48630311c5c97db50159c3076fa5b17a43d (diff)
parent560f73141afbc1ef41d6c8acb3974b3632ad6f25 (diff)
downloadotp-6f0b3bd3fc28de703490470630922873775c97f5.tar.gz
otp-6f0b3bd3fc28de703490470630922873775c97f5.tar.bz2
otp-6f0b3bd3fc28de703490470630922873775c97f5.zip
Merge branch 'dgud/remove-gs-apps/OTP-10915'
Diffstat (limited to 'lib/pman/src/pman_buf.erl')
-rw-r--r--lib/pman/src/pman_buf.erl117
1 files changed, 0 insertions, 117 deletions
diff --git a/lib/pman/src/pman_buf.erl b/lib/pman/src/pman_buf.erl
deleted file mode 100644
index d56ce184fa..0000000000
--- a/lib/pman/src/pman_buf.erl
+++ /dev/null
@@ -1,117 +0,0 @@
-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 1997-2009. All Rights Reserved.
-%%
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
-%%
-%% %CopyrightEnd%
-%%
-%%%----------------------------------------------------------------------
-%%% Purpose : This module is the exported interface to the buffering mechanism
-%%% used in PMAN to prevent the trace output to congest
-%%% the system.
-%%%
-%%% This module depends on the modules (direct or indirectly):
-%%% pman_buf.hrl
-%%% pman_buf_utils.erl
-%%% pman_buf_buffer.erl
-%%% pman_buf_converter.erl
-%%% pman_buf_printer.erl
-%%%
-%%%----------------------------------------------------------------------
-
--module(pman_buf).
-
-%%-compile(export_all).
--export([start/2,clear/3]).
-
-
--include("pman_buf.hrl").
-
-
-%% The buffering mechanism consists of three processes that
-%% work in a chain to prevent the process monitor from congesting
-%% output mechanism.
-%%
-%% Messages are buffered in the CONVERTER process before they are sent to
-%% to the BUFFER process where they are formatted before they are finally
-%% sent to either a file or the PRINTER process. The printer process
-%% outputs the messages in the graphical user interface.
-%%
-%%
-%%
-%% --> CONVERTER --> BUFFER --> PRINTER --> gui
-%% |
-%% |
-%% |
-%% V
-%%
-%% file
-%%
-
-
-
-
-
-%% ----------------------------------------------------------------
-%% The amount of data produced by a trace message may be large, and
-%% cause the run time system to run out of memory. To avoid this,
-%% the task of storing, cutting buffers, formating data and printing
-%% it is performed by three processes: The buffer, the converter and
-%% the printer.
-%%
-%% The converter accepts the raw data, a list
-%% of {trace,Msg} tuples. Having max priority, it assures that the
-%% amount of raw data stored never excedes ?BUFF_SIZE messages.
-%% (With the exception of the last batch received, which assures that
-%% the last trace message printed is never a buffer cut message.)
-%% Whenever there is space available in the buffer process, (The
-%% Buffer process stores max. ?BUFF_SIZE converted messages),
-%% the buffer asks for more unconverted messages, and ?PRINT_LEN messages
-%% are sent. They are converted by the buffer, and added to the list
-%% of messages to be sent.
-
-%% The printer process requests formatted messages from the buffer,
-%% and in chuncs of ?MAX_OUTPUT sends them to the buffer. If traces
-%% are to be dumped on file, due to the max priority, such is handled
-%% in the converter, and buffers are not cut.
-%%
-
-
-%% ---------------------------------------------------------------
-%% Initializes the buffering mechanism, which consist of three
-%% processes, each involved with a phase of the formattation and
-%% output of data to the process windows.
-
-start(Editor, FileName) ->
- Buffer_Pid = spawn_link(pman_buf_buffer,init,[Editor]),
- Converter_Pid =
- spawn_link(pman_buf_converter,init,[Buffer_Pid, FileName]),
- Buffer_Pid!{converter_pid, Converter_Pid},
- #buffer{converter=Converter_Pid,buffer=Buffer_Pid}.
-
-
-
-%% ---------------------------------------------------------------
-%% Kills the converter and the clears the buffer with formated data
-%% starting a new converter.
-
-clear(Buff,String, FileName) ->
- exit(Buff#buffer.converter,win_killed),
- Converter_Pid=spawn_link(pman_buf_converter,init,[Buff#buffer.buffer,
- FileName]),
- Buff#buffer.buffer!{clear,String,Converter_Pid },
- Buff#buffer{converter = Converter_Pid}.
-
-
-