You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: setfilesemaphore.m
    path of file: ./repos/Image-Harmonization-Dataset-iHarmony4/Lalonde and Efros/utils/3rd_party/multicore
    
    the code of the file until where you have to start completion: function semaphore = setfilesemaphore(fileList)
%SETFILESEMAPHORE  Set semaphore for file access.
%   SEMAPHORE = SETFILESEMAPHORE(FILENAME) sets a semaphore to get
%   exclusive access on file FILE. The semaphore is realized by generating
%   a simple Matlab data file after checking that no other semaphores are
%   existing. The function exits if the semaphore is set. Exclusive file
%   access is of course only guaranteed if all other Matlab processes use
%   semaphores to access the same file.
%
%   The output variable SEMAPHORE is needed to correctly remove the file
%   semaphore after file access. It is an error to call function
%   SETFILESEMAPHORE without output arguments.
%
%   SEMAPHORE = SETFILESEMAPHORE(FILELIST) sets semaphores for all files
%   given in cell array FILELIST. Note that function SETFILESEMAPHORE waits
%   for exclusive file access on ALL files in the list before exiting.
%
%		Note: A semaphore older than 20 seconds is considered as invalid and
%		will immediately be deleted.
%
%		Example:
%		sem = setfilesemaphore('test.mat');
%		% access file test.mat here
%		dir test.mat.semaphore.*
%		removefilesemaphore(sem);
%
%		Markus Buehren
%		Last modified 05.04.2009
%
%   See also REMOVEFILESEMAPHORE.

% Todo: What about system time differences between the local machine and
% the machine where the temporary directory lies?

showWarnings = 0;

persistent filesToIgnore

% set times (all in seconds)
semaphoreOldTime = 20;
fixedWaitTime    = 0.02; % wait fixedWaitTime after generating semaphore
checkWaitTime    = 0.02;
waitInfoPeriod   = 5;
maxRandomTime    = 0.3;

    
function semaphore = setfilesemaphore(fileList)
%SETFILESEMAPHORE  Set semaphore for file access.
%   SEMAPHORE = SETFILESEMAPHORE(FILENAME) sets a semaphore to get
%   exclusive access on file FILE. The semaphore is realized by generating
%   a simple Matlab data file after checking that no other semaphores are
%   existing. The function exits if the semaphore is set. Exclusive file
%   access is of course only guaranteed if all other Matlab processes use
%   semaphores to access the same file.
%
%   The output variable SEMAPHORE is needed to correctly remove the file
%   semaphore after file access. It is an error to call function
%   SETFILESEMAPHORE without output arguments.
%
%   SEMAPHORE = SETFILESEMAPHORE(FILELIST) sets semaphores for all files
%   given in cell array FILELIST. Note that function SETFILESEMAPHORE waits
%   for exclusive file access on ALL files in the list before exiting.
%
%		Note: A semaphore older than 20 seconds is considered as invalid and
%		will immediately be deleted.
%
%		Example:
%		sem = setfilesemaphore('test.mat');
%		% access file test.mat here
%		dir test.mat.semaphore.*
%		removefilesemaphore(sem);
%
%		Markus Buehren
%		Last modified 05.04.2009
%
%   See also REMOVEFILESEMAPHORE.

% Todo: What about system time differences between the local machine and
% the machine where the temporary directory lies?

showWarnings = 0;

persistent filesToIgnore

% set times (all in seconds)
semaphoreOldTime = 20;
fixedWaitTime    = 0.02; % wait fixedWaitTime after generating semaphore
checkWaitTime    = 0.02;
waitInfoPeriod   = 5;
maxRandomTime    = 0.3;

if nargout ~= 1
  error('Function %s must be called with one output argument!', mfilename);
end