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* assert.cc (__assert): Call debugger on assertion failure if debugging.

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* dcrt0.cc (dll_crt0_1): Just wait for signal thread to go live rather than
going through the overhead of invoking it.
* fork.cc (fork_child): Ditto.
* exceptions.cc (signal_fixup_after_fork): Call sigproc_init here.
* sigproc.cc (proc_can_be_signalled): Assume that the signal thread is live.
(sig_dispatch): Ditto.
(sig_send): Ditto.
(wait_for_sigthread): Renamed from "wait_for_me".  Assume that wait_sig_inited
has been set and that this function is only called from the main thread.
* winsup.h (wait_for_sigthread): Declare new function.
This commit is contained in:
Christopher Faylor
2002-08-11 19:19:29 +00:00
parent 2324fd5b91
commit 3cb62bd614
7 changed files with 41 additions and 25 deletions
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25
winsup/cygwin/sigproc.cc
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@@ -17,6 +17,7 @@ details. */
#include <errno.h>
#include <stdlib.h>
#include <sys/cygwin.h>
#include <assert.h>
#include "cygerrno.h"
#include "sync.h"
#include "sigproc.h"
@@ -167,19 +168,13 @@ out:
return res;
}
__inline static void
wait_for_me ()
void __stdcall
wait_for_sigthread ()
{
/* See if this is the first signal call after initialization.
* If so, wait for notification that all initialization has completed.
* Then set the handle to NULL to avoid checking this again.
*/
if (wait_sig_inited)
{
(void) WaitForSingleObject (wait_sig_inited, INFINITE);
(void) ForceCloseHandle (wait_sig_inited);
wait_sig_inited = NULL;
}
assert (wait_sig_inited);
(void) WaitForSingleObject (wait_sig_inited, INFINITE);
(void) ForceCloseHandle (wait_sig_inited);
wait_sig_inited = NULL;
}
/* Get the sync_proc_subproc muto to control access to
@@ -210,7 +205,7 @@ proc_can_be_signalled (_pinfo *p)
{
if (p == myself_nowait || p == myself_nowait_nonmain || p == myself)
{
wait_for_me ();
assert (!wait_sig_inited);
return 1;
}
@@ -535,7 +530,7 @@ sig_dispatch_pending (int justwake)
#endif
else
{
wait_for_me ();
assert (!wait_sig_inited);
if (!justwake)
(void) sig_send (myself, __SIGFLUSH);
else if (ReleaseSemaphore (sigcatch_nosync, 1, NULL))
@@ -657,7 +652,7 @@ sig_send (_pinfo *p, int sig, DWORD ebp, bool exception)
{
if (no_signals_available ())
goto out; // Either exiting or not yet initializing
wait_for_me ();
assert (!wait_sig_inited);
wait_for_completion = p != myself_nowait;
p = myself;
}