From 4ee52924a61bdb2fd8ce7b64d111cf7df4d19fe3 Mon Sep 17 00:00:00 2001 From: Christopher Faylor Date: Thu, 23 Dec 2004 14:57:08 +0000 Subject: * cygthread.cc (cygthread::stub): Detect if thread function wants to release itself here, to avoid a race. (cygthread::release): Clear more stuff. Add a diagnostic for an internal error. * cygthread.h (auto_release): New function. * pinfo.h (pinfo::remember): Add an argument to denote whether child is detached. * fork.cc (fork_parent): Reflect change in arguments to pinfo::remember. * pinfo.cc (_pinfo::exit): Signal exit more forcibly. (proc_waiter): Use cygthread::auto_release to signify that cygthread::stub should release the thread. This should avoid a race. (pinfo::alert_parent): Don't signify an error when wr_proc_pipe == NULL. * sigproc.cc (proc_subproc): Add support for PROC_DETACHED_CHILD. * sigproc.h: Ditto. * spawn.cc (spawn_guts): Specify whether child is detached or not when calling pinfo::remember. --- winsup/cygwin/sigproc.cc | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'winsup/cygwin/sigproc.cc') diff --git a/winsup/cygwin/sigproc.cc b/winsup/cygwin/sigproc.cc index 7f296d288..934988d87 100644 --- a/winsup/cygwin/sigproc.cc +++ b/winsup/cygwin/sigproc.cc @@ -38,8 +38,6 @@ details. */ #define WSSC 60000 // Wait for signal completion #define WPSP 40000 // Wait for proc_subproc mutex -#define PSIZE 63 // Number of processes - #define no_signals_available() (!hwait_sig || (myself->sendsig == INVALID_HANDLE_VALUE) || exit_state) #define NPROCS 256 @@ -246,7 +244,9 @@ proc_subproc (DWORD what, DWORD val) set_errno (EAGAIN); break; } + /* fall through intentionally */ + case PROC_DETACHED_CHILD: if (vchild != myself) { vchild->ppid = myself->pid; @@ -258,6 +258,8 @@ proc_subproc (DWORD what, DWORD val) vchild->cygstarted = true; vchild->process_state |= PID_INITIALIZING | (myself->process_state & PID_USETTY); } + if (what == PROC_DETACHED_CHILD) + break; procs[nprocs] = vchild; rc = procs[nprocs].wait (); if (rc) -- cgit v1.2.3