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-rw-r--r--pthreads/src/pthread_self.c141
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diff --git a/pthreads/src/pthread_self.c b/pthreads/src/pthread_self.c
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-/*
- * pthread_self.c
- *
- * Description:
- * This translation unit implements miscellaneous thread functions.
- *
- * --------------------------------------------------------------------------
- *
- * Pthreads-win32 - POSIX Threads Library for Win32
- * Copyright(C) 1998 John E. Bossom
- * Copyright(C) 1999,2005 Pthreads-win32 contributors
- *
- * Contact Email: rpj@callisto.canberra.edu.au
- *
- * The current list of contributors is contained
- * in the file CONTRIBUTORS included with the source
- * code distribution. The list can also be seen at the
- * following World Wide Web location:
- * http://sources.redhat.com/pthreads-win32/contributors.html
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library in the file COPYING.LIB;
- * if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
-
-#include "pthread.h"
-#include "implement.h"
-
-pthread_t
-pthread_self (void)
- /*
- * ------------------------------------------------------
- * DOCPUBLIC
- * This function returns a reference to the current running
- * thread.
- *
- * PARAMETERS
- * N/A
- *
- *
- * DESCRIPTION
- * This function returns a reference to the current running
- * thread.
- *
- * RESULTS
- * pthread_t reference to the current thread
- *
- * ------------------------------------------------------
- */
-{
- pthread_t self;
- pthread_t nil = {NULL, 0};
- ptw32_thread_t * sp;
-
-#if defined(_UWIN)
- if (!ptw32_selfThreadKey)
- return nil;
-#endif
-
- sp = (ptw32_thread_t *) pthread_getspecific (ptw32_selfThreadKey);
-
- if (sp != NULL)
- {
- self = sp->ptHandle;
- }
- else
- {
- /*
- * Need to create an implicit 'self' for the currently
- * executing thread.
- */
- self = ptw32_new ();
- sp = (ptw32_thread_t *) self.p;
-
- if (sp != NULL)
- {
- /*
- * This is a non-POSIX thread which has chosen to call
- * a POSIX threads function for some reason. We assume that
- * it isn't joinable, but we do assume that it's
- * (deferred) cancelable.
- */
- sp->implicit = 1;
- sp->detachState = PTHREAD_CREATE_DETACHED;
- sp->thread = GetCurrentThreadId ();
-
-#if defined(NEED_DUPLICATEHANDLE)
- /*
- * DuplicateHandle does not exist on WinCE.
- *
- * NOTE:
- * GetCurrentThread only returns a pseudo-handle
- * which is only valid in the current thread context.
- * Therefore, you should not pass the handle to
- * other threads for whatever purpose.
- */
- sp->threadH = GetCurrentThread ();
-#else
- if (!DuplicateHandle (GetCurrentProcess (),
- GetCurrentThread (),
- GetCurrentProcess (),
- &sp->threadH,
- 0, FALSE, DUPLICATE_SAME_ACCESS))
- {
- /*
- * Should not do this, but we have no alternative if
- * we can't get a Win32 thread handle.
- * Thread structs are never freed.
- */
- ptw32_threadReusePush (self);
- /*
- * As this is a win32 thread calling us and we have failed,
- * return a value that makes sense to win32.
- */
- return nil;
- }
-#endif
-
- /*
- * No need to explicitly serialise access to sched_priority
- * because the new handle is not yet public.
- */
- sp->sched_priority = GetThreadPriority (sp->threadH);
- pthread_setspecific (ptw32_selfThreadKey, (void *) sp);
- }
- }
-
- return (self);
-
-} /* pthread_self */