Struggling with PB HTTP library
Posted: Sat Jun 05, 2021 2:03 pm
I've been having problems with random crashes for the last couple of months. I've put a lot of effort into debugging it and at this point i'm so pissed off that it drives me mad. I wrote about it here and even reported a couple of things that look like bugs to me (see the macos bugs section), but several people told me that they never had any problems and i must be doing something wrong or i just don't understand how it works.
Well, long story short, today i managed to strip everything down to this:
1. Compile it (compiler params or debugger state don't matter).
2. Run and wait for it to finish the requests (in about 100 seconds).
3. Let it sit there doing completely nothing for the next several minutes, just leave the window active or switch to something else.
4. It will crash.
The debugger isn't catching anything, but on the system level i get various errors, starting from "segmentation fault" and "illegal instruction" to "alarm" (whatever the last one means).
Can please anyone confirm this? Am i doing something wrong again? If so, what exactly?
Well, long story short, today i managed to strip everything down to this:
Code: Select all
EnableExplicit
InitNetwork()
OpenWindow(0,0,0,400,300,"HTTPRequest test",#PB_Window_ScreenCentered|#PB_Window_SystemMenu)
EditorGadget(0,0,0,400,300,#PB_Editor_WordWrap|#PB_Editor_ReadOnly)
; spawn various async HTTP requests
NewList requests.i()
; #1 a simple get request
AddElement(requests())
requests() = HTTPRequest(#PB_HTTP_Get,"https://httpbin.org/get?var=value","",#PB_HTTP_Asynchronous)
; #2 a simple post request
AddElement(requests())
requests() = HTTPRequest(#PB_HTTP_Post,"https://httpbin.org/post","var=value",#PB_HTTP_Asynchronous)
; #3 a request with redirect
AddElement(requests())
requests() = HTTPRequest(#PB_HTTP_Get,"http://httpstat.us/301","",#PB_HTTP_Asynchronous)
; #4 a request which will be completed after 30 seconds
AddElement(requests())
requests() = HTTPRequest(#PB_HTTP_Get,"http://httpstat.us/200?sleep=30000","",#PB_HTTP_Asynchronous)
; #5 a request to a non-existent domain
AddElement(requests())
requests() = HTTPRequest(#PB_HTTP_Get,"https://nodomain.d7.wtf","",#PB_HTTP_Asynchronous)
; #6 a request which will timeout
AddElement(requests())
requests() = HTTPRequest(#PB_HTTP_Get,"http://www.google.com:81/","",#PB_HTTP_Asynchronous)
Define ev,log.s
Repeat
ev = WaitWindowEvent(100)
ForEach requests()
If requests() > 0
Select HTTPProgress(requests())
Case #PB_HTTP_Success,#PB_HTTP_Failed,#PB_HTTP_Aborted
log = "[" + FormatDate("%hh:%ii:%ss",Date()) + "] Finished #" + Str(ListIndex(requests()) + 1)
If HTTPInfo(requests(),#PB_HTTP_StatusCode)
log + ", http code: " + HTTPInfo(requests(),#PB_HTTP_StatusCode)
EndIf
If HTTPInfo(requests(),#PB_HTTP_ErrorMessage)
log + ", error: " + HTTPInfo(requests(),#PB_HTTP_ErrorMessage)
EndIf
AddGadgetItem(0,0,log)
FinishHTTP(requests())
requests() = 0
EndSelect
EndIf
Next
Until ev = #PB_Event_CloseWindow2. Run and wait for it to finish the requests (in about 100 seconds).
3. Let it sit there doing completely nothing for the next several minutes, just leave the window active or switch to something else.
4. It will crash.
The debugger isn't catching anything, but on the system level i get various errors, starting from "segmentation fault" and "illegal instruction" to "alarm" (whatever the last one means).
Can please anyone confirm this? Am i doing something wrong again? If so, what exactly?
