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Don't crash when we get a SIGCHLD for a removed thread.

This commit is contained in:
Alexandre Julliard 1999-11-10 20:25:19 +00:00
parent f11d29e2ca
commit 15ed96161f
1 changed files with 6 additions and 3 deletions
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9
server/thread.c
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@ -256,7 +256,8 @@ void wait4_thread( struct thread *thread, int signal )
switch(sig)
{
case SIGSTOP: /* continue at once if not suspended */
if (!thread) thread = get_thread_from_pid( pid );
if (!thread)
if (!(thread = get_thread_from_pid( pid ))) break;
if (!(thread->process->suspend + thread->suspend))
ptrace( PTRACE_CONT, pid, 0, sig );
break;
@ -271,7 +272,8 @@ void wait4_thread( struct thread *thread, int signal )
int exit_code = WTERMSIG(status);
if (debug_level)
fprintf( stderr, "ptrace: pid %d killed by sig %d\n", pid, exit_code );
if (!thread) thread = get_thread_from_pid( pid );
if (!thread)
if (!(thread = get_thread_from_pid( pid ))) return;
if (thread->client) remove_client( thread->client, exit_code );
}
else if (WIFEXITED(status))
@ -279,7 +281,8 @@ void wait4_thread( struct thread *thread, int signal )
int exit_code = WEXITSTATUS(status);
if (debug_level)
fprintf( stderr, "ptrace: pid %d exited with status %d\n", pid, exit_code );
if (!thread) thread = get_thread_from_pid( pid );
if (!thread)
if (!(thread = get_thread_from_pid( pid ))) return;
if (thread->client) remove_client( thread->client, exit_code );
}
else fprintf( stderr, "wait4: pid %d unknown status %x\n", pid, status );