On Saturday, 2 September 2017 at 12:54:48 UTC, Nicholas Wilson
wrote:
On Saturday, 2 September 2017 at 10:15:04 UTC, Vino.B wrote:
Hi All,
Can you please guide me how can i use array appender for the
below piece of code
string[][] cleanFiles (string FFs, string Step) {
auto dFiles = dirEntries(FFs, SpanMode.shallow).filter!(a =>
a.isFile).map!(a => tuple(a.name , a.timeCreated)).array;
foreach (d; dFiles) {
if (Step == "dryrun")
{
Subdata ~= [d[0], d[1].toSimpleString[0
.. 20]];
}
else if (Step == "run")
{
remove(d[0]);
if (!d[0].exists)
Subdata ~= [d[0], d[1].toSimpleString[0 ..
20]];
}
}
return Subdata;
}
From,
Vino.B
If you're wanting to use appender just make an appender and
replace the ~= to calls to appender.put(data);
if you're trying to make it faster, consider that Step could be
a bool, your return type could be string[2][], the `if
(!d[0].exists)` is redundant since `remove` will throw if it
fails. That leaves you with
string[2][] cleanFiles(string FFs, bool dryrun)
{
auto dFiles = dirEntries(FFs, SpanMode.shallow)
.filter!(a => a.isFile)
.map!(a =>[a.name ,
a.timeCreated.toSimpleString[0 .. 20])
.array;
if (! dryrun)
dFiles.each!(f => f[0].remove);
}
Hi,
Thank you very much, and your idea help a lot, and the reason to
use appender is for both faster and performance as my program
use's many ~= function and found that using appender is the best
way when compared with the ~= e.g;(MCresult.get ~=
MCleanTaskData;)
void mCleanFiles (string[] Dirlist, File logF, File logE, string
Step) {
try {
string[][] MCtext;
string[][] MCEresult;
auto MCresult = taskPool.workerLocalStorage(MCtext);
logF.writeln("Function \t : List of the File's which are not
placed in correct Location and list those deleted");
logF.writeln("Dir. Scanned \t :", Dirlist);
logF.writeln("************************************************************************************");
logF.writefln("%-63s %.20s", "File Name", "CreationTime");
logF.writeln("************************************************************************************");
foreach (string Fs; parallel(Dirlist[0 .. $], 1)) {
auto FFs = Fs.strip;
auto MCleanTask = task(&cleanFiles, FFs, Step);
MCleanTask.executeInNewThread();
auto MCleanTaskData = MCleanTask.workForce;
MCresult.get ~= MCleanTaskData;
}
foreach(i; MCresult.toRange)
logF.writefln("%(%-(%-63s %)\n%)", i.sort!((a,b) => a[0] <
b[0]).uniq);
logF.writeln("************************************************************************************");
} catch (Exception e) { logE.writeln(e.msg); }
}
From,
Vino.B
