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* Makefile.in (clean): Remove sigfe.s.

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(sigfe.s): Ensure that sigfe.s will be regenerated if it does not exist.
* dll_init.cc (dll_dllcrt0): Simplify initializing tests.
* exceptions.cc (setup_handler): Detect when stub caller is either spinning or
has acquired the lock after being suspended to avoid windows problems with
suspending a win32 API call.
* cygtls.h (_cygtls::spinning): Declare new element.
* gendef: Remove unused _siglist_index and _siglist declaration.
(_sigfe): Set spinning element when potentially looping, waiting for lock.
(_sigbe): Ditto.
(_cygtls::lock): Ditto.
(_longjmp): Ditto.
* tlsoffsets.h: Regenerate.
* pinfo.cc (_pinfo::exit): Set final exit state here.  Call sigproc_terminate
if invoked with 'norecord'.  Clear any residual _cygtls stuff.
* winsup.h (exit_states): Define ES_FINAL.
* spawn.cc (spawn_guts): Don't call proc_terminate specifically when execing.
Let _pinfo::exit handle that case.
* sigproc.cc (wait_subproc): Always exit loop early when proc_loop_wait.
* init.cc (munge_threadfunc): Eliminate unused argument.
(dll_entry): Reflect above change in call to munge_threadfunc.
This commit is contained in:
Christopher Faylor
2004-02-13 19:34:32 +00:00
parent b3535c2730
commit edc4f86ad2
12 changed files with 135 additions and 101 deletions
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64
winsup/cygwin/sigproc.cc
View File

@@ -70,26 +70,6 @@ static pending_signals sigqueue;
struct sigaction *global_sigs;
void __stdcall
sigalloc ()
{
cygheap->sigs = global_sigs =
(struct sigaction *) ccalloc (HEAP_SIGS, NSIG, sizeof (struct sigaction));
}
void __stdcall
signal_fixup_after_exec ()
{
global_sigs = cygheap->sigs;
/* Set up child's signal handlers */
for (int i = 0; i < NSIG; i++)
{
global_sigs[i].sa_mask = 0;
if (global_sigs[i].sa_handler != SIG_IGN)
global_sigs[i].sa_handler = SIG_DFL;
}
}
/*
* Global variables
*/
@@ -101,19 +81,15 @@ char NO_COPY myself_nowait_dummy[1] = {'0'};// Flag to sig_send that signal goes
HANDLE NO_COPY signal_arrived; // Event signaled when a signal has
// resulted in a user-specified
// function call
/*
* Common variables
*/
/* How long to wait for message/signals. Normally this is infinite.
* On termination, however, these are set to zero as a flag to exit.
*/
#define Static static NO_COPY
/* How long to wait for message/signals. Normally this is infinite.
On termination, however, these are set to zero as a flag to exit. */
Static DWORD proc_loop_wait = 1000; // Wait for subprocesses to exit
Static HANDLE sendsig_tome;
HANDLE NO_COPY sigCONT; // Used to "STOP" a process
Static cygthread *hwait_sig; // Handle of wait_sig thread
Static cygthread *hwait_subproc; // Handle of sig_subproc thread
@@ -149,6 +125,26 @@ static DWORD WINAPI wait_sig (VOID *arg);
static int __stdcall stopped_or_terminated (waitq *, _pinfo *);
static DWORD WINAPI wait_subproc (VOID *);
void __stdcall
sigalloc ()
{
cygheap->sigs = global_sigs =
(struct sigaction *) ccalloc (HEAP_SIGS, NSIG, sizeof (struct sigaction));
}
void __stdcall
signal_fixup_after_exec ()
{
global_sigs = cygheap->sigs;
/* Set up child's signal handlers */
for (int i = 0; i < NSIG; i++)
{
global_sigs[i].sa_mask = 0;
if (global_sigs[i].sa_handler != SIG_IGN)
global_sigs[i].sa_handler = SIG_DFL;
}
}
/* Determine if the parent process is alive.
*/
@@ -1215,17 +1211,13 @@ wait_subproc (VOID *)
{
DWORD rc = WaitForMultipleObjects (nchildren + 1, events, FALSE,
proc_loop_wait);
if (!proc_loop_wait)
break;
if (rc == WAIT_TIMEOUT)
if (!proc_loop_wait)
break; // Exiting
else
continue;
continue;
if (rc == WAIT_FAILED)
{
if (!proc_loop_wait)
break;
/* It's ok to get an ERROR_INVALID_HANDLE since another thread may have
closed a handle in the children[] array. So, we try looping a couple
of times to stabilize. FIXME - this is not foolproof. Probably, this
@@ -1274,8 +1266,6 @@ wait_subproc (VOID *)
si.si_stime = 0;
#endif
rc = proc_subproc (PROC_CHILDTERMINATED, rc);
if (!proc_loop_wait) // Don't bother if wait_subproc is
break; // exiting
/* Send a SIGCHLD to myself. We do this here, rather than in proc_subproc
to avoid the proc_subproc lock since the signal thread will eventually