Public bug reported:
Man page of pthread_kill:
...
The pthread_kill function returns the following error codes on error:
EINVAL signo is not a valid signal number
ESRCH the thread thread does not exist (e.g. it has already
terminated)
Compile and run the following program (errkill.c):
#include <pthread.h>
#include <stdio.h>
#include <string.h>
void* victim(void* data){
return NULL;
}
main (){
pthread_t th;
int err;
pthread_create(&th,NULL,victim,0);
pthread_join(th,NULL);
if (err = pthread_kill(th,0) != 0){
printf("pthread_kill %s\n",strerror(err));
}
}
$ gcc errkill.c -o errkill.exe -lpthread
$ ./errkill.exe
pthread_kill Operation not permitted
I.e. pthread_kill returns EPERM instead of ESRCH
Then, either the documentation or the library function is wrong.
I think that ESRCH is the correct error to report.
Ubuntu version: 9.04
** Affects: ubuntu
Importance: Undecided
Status: New
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pthread_kill ESRCH
https://bugs.launchpad.net/bugs/374769
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