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Note that the SIGCHLD handler could be re-entered.

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This commit is contained in:
Michael Brown 2007-01-19 14:10:13 +00:00
parent 1411876e26
commit b6194b8cb9
1 changed files with 7 additions and 1 deletions
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8
src/core/resolv.c
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@ -103,8 +103,14 @@ static void resolv_sigchld ( struct async *async,
container_of ( async, struct resolution, async );
int rc;
/* If this child succeeded, kill all the others and return */
/* Reap the child */
async_wait ( async, &rc, 1 );
/* If this child succeeded, kill all the others and return.
* Killing the others means that this routine may be
* re-entered; this is safe provided that no child returns a
* success exit status when killed by SIGKILL.
*/
if ( rc == 0 ) {
async_signal_children ( async, SIGKILL );
async_done ( async, 0 );