c - How to avoid a memory leak by using pthread_cancel? -

-

I have a program that should start a thread. To avoid getting out of the software, the thread runs in an endless loop and I am in the thread. This thread never returns the value. So now I have the problem that after detecting the pthread_cancel Valgrind memory leak detection. How can I avoid this kind of memory leak?

Valgrind production: 

  == 5673 == 1 by 136 blocks by 1 block possibly 8 == 5673 record of 4 necklaces Are lost in == 0x4026A68: calloc (vg_replace_malloc.c: 566) == 5673 by 0x40111FB ==: _dl_allocate_tls (DL- tls.c: 300) == 5673 == 0x404E5A0 by: pthread_create @@GLIBC_2.1 ( Allocatestack.c: 0x804C44E by 580) == 5673 ==: beginning (mythread.c: 25) == 5673 by 0x804D128 ==: main (main.c: 10)   
 code :  
  int main () {hint (SIGINT, cleanup); Signs (SIGQUIT, cleanliness); Indication (SIGSEGV, cleaning); Start(); Return 0; } Int start () {pthread_create (& thread_id [0], faucet, and threadhandler, faucet); Pthread_join (thread_id [0], zero); Return fault; } Cleanliness () {pthread_cancel (thread_ID [0]); Exit (0); } Zero cleanup_tcp (zero * p) {} zero * Threadhandler (zero * arg) {(zero) arg; Integer = 0; While (TRUE) {pthread_cleanup_push (cleanup_tcp, NULL); Pthread_testcancel (); Fprintf (stderr, "run \ n"); Pthread_cleanup_pop (0); } Return tap; }  "itemprop =" text "> 
 You should correctly use  pthread_cancel ()    
 
: No resource has been released / regular cleaning of the thread will leak. In your case, it seems that the thread can be allocated to the library, which automatically gets some memory that is not being free.  
 A better approach will be to make a mechanism to notify IMO,  thread handler  thread which should end it. For example    Stable volatile sig_atomic_t done = 0; ... zero cleanup () {done = 1; } Zero * Threadhandler (zero * arg) {while (! Done) fprintf (stderr, "run \ n"); Return tap; }

Comments

Post a Comment

Popular posts from this blog

php - how to change mysql_result($res, 0, "url"); to mysqli -

-
I do not know how to use mysqli_result like in the past. Is this OK? How is right WHERE status = 'popup' and creditsp> = 1 and (CH) from $ res = mysqli_query ($ con, "SELECT` id`,` usrid`, `url` site Lt; cf || cf = 0) sequence by rand () border 1 "); $ Urll = mysqli_result ($ res, 0, "url"); $ Ownerid = mysqli_result ($ res, 0, "Elixir"); $ Citid = mascile_salt ($ res, 0, "id"); Use fetch_assoc on the results: $ line = $ res-> gt; Fetch_assoc (); $ Urll = $ line ['url']; $ Owner = $ line ['nectar']; $ Site id = $ line ['id']; If there are more than one line, then: while ($ line = $ res-> fetch_assoc ()) {// process $ Line}
Read more

c# - Textbox not clickable but editable -

-
I have a small form with 10 text boxes, I have set them in the correct tab order. I want them on my tab service I was wondering if there is a way to set the text box so that they can be selected for editing until they are tabbed. That is ... I do not want the end user to edit the text box to click on them, I just want to make them editable through tabu. this should do the trick public partial category poor text box: Text Box {Safe Override Zero WndProc (Ref: Message Message) {if (m.msg == (Int) WM.LBUTTONDOWN) {Return; // mount down events} base.WndProc (ref m); }} Window message enum can be found. How to do this without anherizing: text box : class EatMouseDown: netwindows {safe override zero WndProc (ref message message) {if (m.msg == (int) WM.LBUTTONDOWN) {return; } Base.WandProc (Ref M); }} Safe Override Zero Onload (EventEurge E) {base.OnLoad (e); How to do this without any part: left a clean part, whatever is important, this can be a buggy but it works R...
Read more

Matlab transpose a table vector -

-
An embarrassing simple question seems to be, but how can I move a Matlab table vector? aTableT = aTable '; I tried a standard syntax for the simple interaction of a line vector to a line vector aTable : ATableT = reshape (aTable, 1, Height (aTable)); and aTableT = rot90 (aTable); According to the head, the last time table should work for table, see. However, I get this error code: Error type in using table / permit (line 396) Undefined function 'permute' for the input arguments. Error in rot 90 (line 29) b = magnitude (b, [2 1 3: ndims (a)]); NB: fliplr is not useful either pretty sure I have covered clear angles - any ideas? Thanks! Try changing your table into an array, move it, then back to a table In other words, try doing this: aTableArray = table2array (aTable); ATableT = array 2table (aTableArray. '); I have also read the document for rot90 , and it says that rot90 is definitely working for tables Do, and I find you...
Read more