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* dcrt0.cc (sigthread::init): Correct overzealous ifdef.

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* exceptions.cc (call_handler): Avoid calling sigthread acquire lock.
* sigproc.h (sigthread): Comment out lock for now.
* sync.cc (muto::acquire): Add a minor optimization.
This commit is contained in:
Christopher Faylor
2000-10-19 17:57:28 +00:00
parent 2556e737ec
commit 167095f6c0
5 changed files with 22 additions and 2 deletions
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7
winsup/cygwin/ChangeLog
View File

@@ -1,3 +1,10 @@
Thu Oct 19 13:55:31 2000 Christopher Faylor <cgf@cygnus.com>
* dcrt0.cc (sigthread::init): Correct overzealous ifdef.
* exceptions.cc (call_handler): Avoid calling sigthread acquire lock.
* sigproc.h (sigthread): Comment out lock for now.
* sync.cc (muto::acquire): Add a minor optimization.
2000-10-18 DJ Delorie <dj@redhat.com> 2000-10-18 DJ Delorie <dj@redhat.com>
* Makefile.in: add miscfuncs.cc * Makefile.in: add miscfuncs.cc

2
winsup/cygwin/dcrt0.cc
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@@ -616,8 +616,8 @@ sigthread::init (const char *s)
{ {
#if 0 /* FIXME: Someday we'll need this for inter-thread signalling */ #if 0 /* FIXME: Someday we'll need this for inter-thread signalling */
lock = new_muto (FALSE, s); lock = new_muto (FALSE, s);
id = GetCurrentThreadId ();
#endif #endif
id = GetCurrentThreadId ();
} }
/* Take over from libc's crt0.o and start the application. Note the /* Take over from libc's crt0.o and start the application. Note the

10
winsup/cygwin/exceptions.cc
View File

@@ -709,7 +709,9 @@ call_handler (int sig, struct sigaction& siga, void *handler)
int res; int res;
int using_mainthread_frame; int using_mainthread_frame;
#if 0
mainthread.lock->acquire (); mainthread.lock->acquire ();
#endif
if (sigsave.sig) if (sigsave.sig)
goto set_pending; goto set_pending;
@@ -723,7 +725,9 @@ call_handler (int sig, struct sigaction& siga, void *handler)
{ {
int i; int i;
using_mainthread_frame = 0; using_mainthread_frame = 0;
#if 0
mainthread.lock->release (); mainthread.lock->release ();
#endif
hth = myself->getthread2signal (); hth = myself->getthread2signal ();
/* Suspend the thread which will receive the signal. But first ensure that /* Suspend the thread which will receive the signal. But first ensure that
@@ -747,14 +751,18 @@ call_handler (int sig, struct sigaction& siga, void *handler)
if (m->unstable () || m->owner () == mainthread.id) if (m->unstable () || m->owner () == mainthread.id)
goto owns_muto; goto owns_muto;
#if 0
mainthread.lock->acquire (); mainthread.lock->acquire ();
#endif
if (mainthread.frame) if (mainthread.frame)
{ {
ebp = mainthread.frame; /* try to avoid a race */ ebp = mainthread.frame; /* try to avoid a race */
using_mainthread_frame = 1; using_mainthread_frame = 1;
goto next; goto next;
} }
#if 0
mainthread.lock->release (); mainthread.lock->release ();
#endif
cx.ContextFlags = CONTEXT_CONTROL | CONTEXT_INTEGER; cx.ContextFlags = CONTEXT_CONTROL | CONTEXT_INTEGER;
if (!GetThreadContext (hth, &cx)) if (!GetThreadContext (hth, &cx))
@@ -816,7 +824,9 @@ out:
sigproc_printf ("ResumeThread returned %d", res); sigproc_printf ("ResumeThread returned %d", res);
} }
#if 0
mainthread.lock->release (); mainthread.lock->release ();
#endif
sigproc_printf ("returning %d", interrupted); sigproc_printf ("returning %d", interrupted);
return interrupted; return interrupted;

2
winsup/cygwin/sigproc.h
View File

@@ -38,7 +38,9 @@ struct sigthread
{ {
DWORD id; DWORD id;
DWORD frame; DWORD frame;
#if 0
muto *lock; // FIXME: Use for multi-thread signalling someday muto *lock; // FIXME: Use for multi-thread signalling someday
#endif
void init (const char *s); void init (const char *s);
}; };

3
winsup/cygwin/sync.cc
View File

@@ -87,7 +87,7 @@ muto::acquire (DWORD ms)
switch (WaitForSingleObject (bruteforce, ms)) switch (WaitForSingleObject (bruteforce, ms))
{ {
case WAIT_OBJECT_0: case WAIT_OBJECT_0:
was_waiting = 0; goto gotit;
break; break;
default: default:
InterlockedDecrement (&waiters); InterlockedDecrement (&waiters);
@@ -96,6 +96,7 @@ muto::acquire (DWORD ms)
} }
} }
gotit:
tid = this_tid; /* register this thread. */ tid = this_tid; /* register this thread. */
return ++visits; /* Increment visit count. */ return ++visits; /* Increment visit count. */
} }