I just started using SALT for a project i am working on. It is said to work with Python but I find quite a bit of difference in thier syntax and overall format. I have pasted a code for a simple task which just opens and imports and loads some libraries onto the SALT console. I hope someone can check abnd see if he/she can instantly identify the language being used and what the code does. This is because i have a suspicion that the code is a mixture between C, Python as well as Java... if that is so doen't that mean it should be a totally different language on its own?
code:
var rtwxlib = import'rtwxlib';
var string = import'string';
var monitor = rtwxlib.Monitor
{
EvActivate = func() { print "Activate\n"; };
EvShutdown = func() { print "Shutdown\n"; };
EvProgress = func(self, fDone, msg = "") {
print("Progress: %d %s \r"::format(fDone*100, msg));
};
EvEventMsg = func(self, msg) {
print("\nEvent: %s\n"::format(iStat, msg));
};
};
var solver = rtwxlib.Solver(monitor);
solver::Open("test.wrx");
solver::DelGeometry();
solver::SaveAs('testresults.wrx');
solver::Close();
I was able to indentify the syntax of the language used as C. I beieve the problem I had which confused me was the libraries used for this code which I later found out was for a particular program. Thank you to all those who tried to help though :)
Related
I've been toying with this code, and been looking up solutions to this problem to no avail. I was told you were to add a string to a function like so in Arduino C++:
myFunction(String myString)
I've seen examples using this as well. This is the chunk of code that is having issues.
if (piezoV >= 0.25) {
Serial.println(piezoV);
// Serial.println(F("Playing track " + tracknum +""));
String file = String(trackid) + String(tracknum) + String(ext);
musicPlayer.playFullFile(String file);
int tracknum = tracknum + 1;
}
The code fetches this error:
musicPlayer.playFullFile(String file); - expected primary-expression before 'file'
I'm new to Arduino C++, and I am using experience from other languages I've learned to help, but I was wondering if SO could help me with this. Thanks in advance.
musicPlayer.playFullFile(String file);
is not a valid way to call a function in C++. You declare the function with types:
void playFullFile(String file) {
doWhateverIsNeededWith(file);
}
but you call it without the type:
String file = "./pax_singing_badly_in_shower.mp3"; // torture user :-)
musicPlayer.playFullFile(file);
We have run our Robot Framework environment nearly one year without any problems, but now we get the error message:
TimeoutException: Message: Timed out waiting for page load.
Stacktrace:
at Utils.initWebLoadingListener/< (file:///tmp/tmp77bOby/webdriver-py-profilecopy/extensions/fxdriver#googlecode.com/components/driver-component.js:9089)
at WebLoadingListener/e (file:///tmp/tmp77bOby/webdriver-py-profilecopy/extensions/fxdriver#googlecode.com/components/driver-component.js:5145)
at WebLoadingListener/< (file:///tmp/tmp77bOby/webdriver-py-profilecopy/extensions/fxdriver#googlecode.com/components/driver-component.js:5153)
at fxdriver.Timer.prototype.setTimeout/<.notify (file:///tmp/tmp77bOby/webdriver-py-profilecopy/extensions/fxdriver#googlecode.com/components/driver-component.js:625)
What could be problem? I checked the disk space and there are disk space left.
A timeout error can have a laundry list of possible issues. Loading a page after a year of smooth operation narrows it down a little, but there are still many possibilities. Connection speeds sometimes change, sometimes the page you're loading up has added features that cause it to take longer to load or was just written poorly so it loads slowly... you get the idea. Without the code of the page or your code to look at, I can only suggest two fixes.
First, in the code of Selenium2Library, there is a timeout variable somewhere that can be set with Set Selenium Timeout. The default is 5 seconds, but if your page is taking longer to load, then increasing it might solve your problem. This assumes that your page loads at a reasonable rate in manual testing and that opening it is the least of your concerns.
Second, it's possible that you're testing an AngularJS application, not a normal website. If that's true, then you're going to want to use ExtendedSelenium2Library, not Selenium2Library. ExtendedSelenium2Library is better-equipped to deal with AngularJS applications and includes code to wait for Angular applications to load.
The old webdriver.xpi is buggy about page load handling. Timers are not correctly canceled, resulting in random windows switches and memory leaks. I copy here some replacement code that may be useful to anybody.
var WebLoadingListener = function(a, b, c, d) {
if ("none" == Utils.getPageLoadStrategy()) {
b(!1, !0);
} else {
this.logger = fxdriver.logging.getLogger("fxdriver.WebLoadingListener");
this.loadingListenerTimer = new fxdriver.Timer;
this.browser = a;
var self = this;
var e = function(a, c) {
self.destroy ();
b(a, c);
};
this.handler = buildHandler(a, e, d);
a.addProgressListener(this.handler);
-1 == c && (c = 18E5);
this.loadingListenerTimer.setTimeout(function() {
e(!0);
}, c);
WebLoadingListener.listeners [this.handler] = this;
goog.log.warning(this.logger, "WebLoadingListener created [" + Object.keys (WebLoadingListener.listeners).length + "] " + d.document.location);
}
};
WebLoadingListener.listeners = {};
WebLoadingListener.removeListener = function(a, b) {
if (b.constructor !== WebLoadingListener) {
b = WebLoadingListener.listeners [b];
}
b.destroy ();
};
WebLoadingListener.prototype.destroy = function() {
if (this.browser) {
this.loadingListenerTimer.cancel();
this.browser.removeProgressListener && this.handler && this.browser.removeProgressListener(this.handler);
delete WebLoadingListener.listeners [this.handler]
this.loadingListenerTimer = undefined;
this.browser = undefined;
goog.log.warning(this.logger, "WebLoadingListener destroyed [" + Object.keys (WebLoadingListener.listeners).length + "]");
}
};
enter code here
I recently saw code for reading entire contents of an InputStream into a String in Kotlin, such as:
// input is of type InputStream
val baos = ByteArrayOutputStream()
input.use { it.copyTo(baos) }
val inputAsString = baos.toString()
And also:
val reader = BufferedReader(InputStreamReader(input))
try {
val results = StringBuilder()
while (true) {
val line = reader.readLine()
if (line == null) break
results.append(line)
}
val inputAsString = results.toString()
} finally {
reader.close()
}
And even this that looks smoother since it auto-closes the InputStream:
val inputString = BufferedReader(InputStreamReader(input)).useLines { lines ->
val results = StringBuilder()
lines.forEach { results.append(it) }
results.toString()
}
Or slight variation on that one:
val results = StringBuilder()
BufferedReader(InputStreamReader(input)).forEachLine { results.append(it) }
val resultsAsString = results.toString()
Then this functional fold thingy:
val inputString = input.bufferedReader().useLines { lines ->
lines.fold(StringBuilder()) { buff, line -> buff.append(line) }.toString()
}
Or a bad variation which doesn't close the InputStream:
val inputString = BufferedReader(InputStreamReader(input))
.lineSequence()
.fold(StringBuilder()) { buff, line -> buff.append(line) }
.toString()
But they are all clunky and I keep finding newer and different versions of the same... and some of them never even close the InputStream. What is a non-clunky (idiomatic) way to read the InputStream?
Note: this question is intentionally written and answered by the author (Self-Answered Questions), so that the idiomatic answers to commonly asked Kotlin topics are present in SO.
Kotlin has a specific extension just for this purpose.
The simplest:
val inputAsString = input.bufferedReader().use { it.readText() } // defaults to UTF-8
And in this example, you could decide between bufferedReader() or just reader(). The call to the function Closeable.use() will automatically close the input at the end of the lambda's execution.
Further reading:
If you do this type of thing a lot, you could write this as an extension function:
fun InputStream.readTextAndClose(charset: Charset = Charsets.UTF_8): String {
return this.bufferedReader(charset).use { it.readText() }
}
Which you could then call easily as:
val inputAsString = input.readTextAndClose() // defaults to UTF-8
On a side note, all Kotlin extension functions that require knowing the charset already default to UTF-8, so if you require a different encoding you need to adjust the code above in calls to include encoding for reader(charset) or bufferedReader(charset).
Warning: You might see examples that are shorter:
val inputAsString = input.reader().readText()
But these do not close the stream. Make sure you check the API documentation for all of the IO functions you use to be sure which ones close and which do not. Usually, if they include the word use (such as useLines() or use()) they close the stream after. An exception is that File.readText() differs from Reader.readText() in that the former does not leave anything open and the latter does indeed require an explicit close.
See also: Kotlin IO related extension functions
【Method 1 | Manually Close Stream】
private fun getFileText(uri: Uri):String {
val inputStream = contentResolver.openInputStream(uri)!!
val bytes = inputStream.readBytes() //see below
val text = String(bytes, StandardCharsets.UTF_8) //specify charset
inputStream.close()
return text
}
inputStream.readBytes() requires manually close the stream: https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.io/java.io.-input-stream/read-bytes.html
【Method 2 | Automatically Close Stream】
private fun getFileText(uri: Uri): String {
return contentResolver.openInputStream(uri)!!.bufferedReader().use {it.readText() }
}
You can specify the charset inside bufferedReader(), default is UTF-8:
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.io/java.io.-input-stream/buffered-reader.html
bufferedReader() is an upgrade version of reader(), it is more versatile:
How exactly does bufferedReader() work in Kotlin?
use() can automatically close the stream when the block is done:
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.io/use.html
An example that reads contents of an InputStream to a String
import java.io.File
import java.io.InputStream
import java.nio.charset.Charset
fun main(args: Array<String>) {
val file = File("input"+File.separator+"contents.txt")
var ins:InputStream = file.inputStream()
var content = ins.readBytes().toString(Charset.defaultCharset())
println(content)
}
For Reference - Kotlin Read File
Quick solution works well when converting InputStream to string.
val convertedInputStream = String(inputStream.readAllBytes(), StandardCharsets.UTF_8)
I am trying to pass contextInfo of typeUnsafeMutablePointer<Void> to UISaveVideoAtPathToSavedPhotosAlbum and use it in the callback function. For some reason I am unable to access contextInfo as a string using UnsafePointer<String>(x).memory when I am in the callback function.
I am pretty sure it is something simple I am missing but have spent way to many hours trying to figure this out.
Below is some code that I have tried.
The following code works.
var testStr:String = "hello"
takesAMutableVoidPointer(&testStr)
func takesAMutableVoidPointer(x: UnsafeMutablePointer<Void>){
var pStr:String = UnsafePointer<String>(x).memory
println("x = \(x)")
println("pStr = \(pStr)")
}
However the following code does not work.
var testStr:String = "hello"
if UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(filePath){ //the filePath is compatible
println("Compatible")
//UISaveVideoAtPathToSavedPhotosAlbum(filePath, self, nil, nil)
UISaveVideoAtPathToSavedPhotosAlbum(filePath, self, "video:didFinishSavingWithError:contextInfo:", &testStr)
}
else{
println("Not Compatible")
}
func video(video: NSString, didFinishSavingWithError error:NSError, contextInfo:UnsafeMutablePointer<Void>){
var pStr:String = UnsafePointer<String>(contextInfo).memory
println("contextInfo = \(contextInfo)")
println("pStr = \(pStr)")
}
Once I get to the following line:
var pStr:String = UnsafePointer<String>(contextInfo).memory
I keep getting the following error:
Thread 1: EXC_BAD_ACCESS(code=1, address=0x0)
Any help with this would be greatly appreciated.
Thanks.
Update
Rintaro commented that testStr needs to be top level but the following code works.
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
var testStr:String = "hello"
takesAMutableVoidPointer(&testStr)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func takesAMutableVoidPointer(x: UnsafeMutablePointer<Void>){
var answer = UnsafePointer<String>(x).memory
println("x = \(x)")
println("answer = \(answer)")
}
}
I am trying not to use global variables unless I have to. I may have to but since I am able to execute the above code, it seems as though I do not need to use a global variable.
As discussed in OP comments, testStr has already been freed.
Is there any way to force the retaining of a variable that has been created in a function? Then release it later?
It's not impossible, but I don't know this is the best way to do that.
Anyway, try this with Playground or OS X "Command Line Tool" template:
import Foundation
func foo() {
var str:NSString = "Hello World"
let ptr = UnsafePointer<Void>(Unmanaged<NSString>.passRetained(str).toOpaque())
bar(ptr)
}
func bar(v:UnsafePointer<Void>) {
let at = dispatch_time(
DISPATCH_TIME_NOW,
Int64(2.0 * Double(NSEC_PER_SEC))
)
dispatch_after(at, dispatch_get_main_queue()) {
baz(v)
}
}
func baz(v:UnsafePointer<Void>) {
println("notified")
let str = Unmanaged<NSString>.fromOpaque(COpaquePointer(v)).takeRetainedValue()
println("info: \(str)")
}
foo()
println("started")
dispatch_main()
Unmanaged<NSString>.passRetained(str) increments the retain count.
Unmanaged<NSString>.fromOpaque(...).takeRetainedValue() decrements it, and extract the object.
I think, using pure Swift String is impossible. because String is struct and is allocated in stack memory. Maybe the buffer of it is allocated in heap, but we cannot access it directly.
I want to know the contents of a Map while debugging a c++ program.
I am using command line dbx.
I have pointer to the map.
Is there a way in which i can get the data printed.
--
Edit:
p *dataMap will give me this::
p *dataMap
*dataMap = {
__t = {
__buffer_size = 32U
__buffer_list = {
__data_ = 0x3ba2b8
}
__free_list = (nil)
__next_avail = 0x474660
__last = 0x474840
__header = 0x3b97b8
__node_count = 76U
__insert_always = false
__key_compare = {
/* try using "print -r" to see any inherited members */
}
}
}
Thanks
Alok Kr.
you need to write a ksh function to pretty print map, here is an example :
put following line in .dbxrc
source /ksh_STL_map
in dbx, use ppp to call ksh function that define in ksh_STL_map:
(dbx) ppp k
k = 2 elems {343, 0x301f8; 565, 0x30208}
I tried to post content of ksh_STL_map here, but this editor format will mess up the content, it's better that you post your email, then I can send ksh_STL_map directly to you.