/usr/share/psychtoolbox-3/PsychPriority/Rush.m is in psychtoolbox-3-common 3.0.11.20140816.dfsg1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | function Rush(rushedCode, priorityLevel)
% Rush(rushedCode, priorityLevel)
%
% Note: This function is not needed anymore. Use Priority() instead to
% simplify your life. The function is only left for backward compatibility
% to keep old code running.
%
% Rush runs a critical bit of your Matlab code with minimal interruption by
% other tasks. The first argument is a string containing Matlab code to be
% passed to EVAL. Within the string, you can have multiple statements
% separated by ";" or ",".
%
% The optional "priorityLevel" argument specifies how much to block
% interrupt tasks. Use MaxPriority to determine the highest priority that
% allows normal operation of the functions you use, e.g. SND and SCREEN
% 'WaitBlanking'. We suggest you always call MaxPriority rather than hard
% coding any particular priorityLevel, so that your program will gracefully
% adapt to run optimally on any computer. Here's a typical use:
%
% Screen('Screens'); % Make sure all functions (SCREEN.mex) are in memory.
% i=0; % Allocate all variables.
% loop={
% 'for i=1:100;'
% 'Screen(window,''WaitBlanking'');'
% 'Screen(''CopyWindow'',w(i),window);'
% 'end;'
% };
% priorityLevel=MaxPriority(window,'WaitBlanking');
% Rush(loop,priorityLevel);
%
% Allowable 'priorityLevel' settings are described in "help Priority".
%
% see also: Priority
% HISTORY
% 4/21/97 dgp Wrote it.
% 4/22/97 dgp Added alternate calling form.
% 4/23/97 dgp Updated.
% 4/30/97 dgp Updated to incorporate results of running RushTest.
% 5/6/97 dgp Explain how to choose a priorityLevel.
% 5/30/97 dgp Explain WaitForVBLInterrupt Preference.
% 6/22/97 dgp WaitBlanking calls cscSetEntries, not cscGetEntries.
% 2/1/98 dgp MaxPriority.
% 2/8/98 dgp add priorityLevel 0.5.
% 3/24/98 dgp eliminate priorityLevel -1.
% 7/16/98 dgp demonstrate use of cell array in example.
% 7/22/98 dgp Added warnings about loading functions and Backgrounding.
% 3/15/99 xmz Added comment for Windows version.
% 3/18/99 dgp Added warnings about VM. Document dynamic control of backgrounding.
% 2/4/00 dgp Updated for Mac OS 9.
% 12/16/03 awi Wrote OS X Documentation and merged with OS 9 + Windows Rush.m.
% 7/16/04 awi Cosmetic. Restored HISTORY.
% 5/22/07 mk Reimplemented Rush() in this script. Long-term we wanna get
% rid of the mex files.
% 1/26/08 mk Small fix: Use evalin('caller', ...) instead of eval(...),
% so variables in the scope of calling M-Function are available
% to Rushed code.
if nargin < 2
error('You must specify both, the string with code to rush as well as the rush priority level!');
end
try
Priority(priorityLevel);
evalin('caller', rushedCode);
Priority(0);
catch %#ok<CTCH>
Priority(0);
psychrethrow(psychlasterror);
end
|