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* child_info.h (child_info): Add pppid_handle for closing the parent's of the

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parent handle.
* dcrt0.cc (_dll_crt0): Close parent's parent handle when spawned or forked.
* debug.cc (add_handle): Correct erroneous reference to handle structure when
printing warning.
* exceptions.cc (interrupt_now): Always return 1.
(interrupt_on_return): Accept a sigthread argument.  Check to see if this
argument has been trashed prior to setting up the stack return.
(call_handler): Add a loop around attempts to dispatch signals to detect case
where interrupt_on_return fails.
(_sigdelayed): Set up a temporary frame pointer prior to calling stuff that
could trigger an interrupt or the stack walking code will be very confused.
* fork.cc (fork_parent): Move a lot of the setup of the child process into
proc_subproc.
* spawn.cc (spawn_guts): Ditto.  Use ppid_handle to contact logical parent when
reparenting.
* pinfo.h (_pinfo): Remember the logical handle of the parent process.
* sigproc.cc (proc_subproc): Record most stuff necessary for the _pinfo
structure that is inferrable from myself when adding children.
(wait_sig): Always set 'pending_signals' flag when about to kick off the signal
scanning loop.  Reset it only if there are no pending signals.
This commit is contained in:
Christopher Faylor
2000-11-06 06:36:32 +00:00
parent e0997f5a0f
commit dd11f11fae
9 changed files with 189 additions and 142 deletions
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27
winsup/cygwin/fork.cc
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@ -471,35 +471,12 @@ fork_parent (void *stack_here, HANDLE& hParent, dll *&first_dll, bool& load_dlls
system_printf ("couldn't create last_fork_proc, %E");
/* Fill in fields in the child's process table entry. */
forked->ppid = myself->pid;
forked->hProcess = pi.hProcess;
forked->dwProcessId = pi.dwProcessId;
forked->uid = myself->uid;
forked->gid = myself->gid;
forked->pgid = myself->pgid;
forked->sid = myself->sid;
forked->ctty = myself->ctty;
forked->umask = myself->umask;
forked->copysigs(myself);
forked->process_state |= PID_INITIALIZING |
(myself->process_state & PID_USETTY);
memcpy (forked->username, myself->username, MAX_USER_NAME);
if (myself->use_psid)
{
memcpy (forked->psid, myself->psid, MAX_SID_LEN);
forked->use_psid = 1;
}
memcpy (forked->logsrv, myself->logsrv, MAX_HOST_NAME);
memcpy (forked->domain, myself->domain, MAX_COMPUTERNAME_LENGTH+1);
forked->token = myself->token;
forked->impersonated = myself->impersonated;
forked->orig_uid = myself->orig_uid;
forked->orig_gid = myself->orig_gid;
forked->real_uid = myself->real_uid;
forked->real_gid = myself->real_gid;
strcpy (forked->root, myself->root);
forked->rootlen = myself->rootlen;
set_child_mmap_ptr (forked);
forked.remember ();
/* Wait for subproc to initialize itself. */
if (!sync_with_child(pi, subproc_ready, TRUE, "waiting for longjmp"))
@ -536,8 +513,6 @@ fork_parent (void *stack_here, HANDLE& hParent, dll *&first_dll, bool& load_dlls
goto cleanup;
}
forked.remember ();
/* Start thread, and wait for it to reload dlls. */
if (!resume_child (pi, forker_finished) ||
!sync_with_child (pi, subproc_ready, load_dlls, "child loading dlls"))