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-rw-r--r--lib/isc/pthreads/include/isc/thread.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/lib/isc/pthreads/include/isc/thread.h b/lib/isc/pthreads/include/isc/thread.h
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+++ b/lib/isc/pthreads/include/isc/thread.h
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+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+#ifndef ISC_THREAD_H
+#define ISC_THREAD_H 1
+
+/*! \file */
+
+#include <pthread.h>
+
+#if defined(HAVE_PTHREAD_NP_H)
+#include <pthread_np.h>
+#endif /* if defined(HAVE_PTHREAD_NP_H) */
+
+#include <isc/lang.h>
+#include <isc/result.h>
+
+#if defined(HAVE_THREAD_LOCAL)
+#include <threads.h>
+extern thread_local size_t isc_tid_v;
+#elif defined(HAVE___THREAD)
+extern __thread size_t isc_tid_v;
+#endif /* if defined(HAVE_THREAD_LOCAL) */
+
+ISC_LANG_BEGINDECLS
+
+typedef pthread_t isc_thread_t;
+typedef void *isc_threadresult_t;
+typedef void *isc_threadarg_t;
+typedef isc_threadresult_t (*isc_threadfunc_t)(isc_threadarg_t);
+
+void
+isc_thread_create(isc_threadfunc_t, isc_threadarg_t, isc_thread_t *);
+
+void
+isc_thread_join(isc_thread_t thread, isc_threadresult_t *result);
+
+void
+isc_thread_yield(void);
+
+void
+isc_thread_setname(isc_thread_t thread, const char *name);
+
+#define isc_thread_self (uintptr_t) pthread_self
+
+/***
+ *** Thread-Local Storage
+ ***/
+
+#if defined(HAVE_TLS)
+#if defined(HAVE_THREAD_LOCAL)
+#define ISC_THREAD_LOCAL static thread_local
+#elif defined(HAVE___THREAD)
+#define ISC_THREAD_LOCAL static __thread
+#else /* if defined(HAVE_THREAD_LOCAL) */
+#error "Unknown method for defining a TLS variable!"
+#endif /* if defined(HAVE_THREAD_LOCAL) */
+#else /* if defined(HAVE_TLS) */
+#error "Thread-local storage support is required!"
+#endif /* if defined(HAVE_TLS) */
+
+ISC_LANG_ENDDECLS
+
+#endif /* ISC_THREAD_H */