Adding upstream version 1:9.16.44.upstream/1%9.16.44

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 356 insertions, 0 deletions

diff --git a/lib/isc/pthreads/include/.clang-format b/lib/isc/pthreads/include/.clang-format
new file mode 120000
index 0000000..e919bba
--- /dev/null
+++ b/lib/isc/pthreads/include/.clang-format
@@ -0,0 +1 @@
+../../../../.clang-format.headers
\ No newline at end of file
diff --git a/lib/isc/pthreads/include/Makefile.in b/lib/isc/pthreads/include/Makefile.in
new file mode 100644
index 0000000..60a0a67
--- /dev/null
+++ b/lib/isc/pthreads/include/Makefile.in
@@ -0,0 +1,19 @@
+# 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.
+
+srcdir =	@srcdir@
+VPATH =		@srcdir@
+top_srcdir =	@top_srcdir@
+
+SUBDIRS =	isc
+TARGETS =
+
+@BIND9_MAKE_RULES@
diff --git a/lib/isc/pthreads/include/isc/Makefile.in b/lib/isc/pthreads/include/isc/Makefile.in
new file mode 100644
index 0000000..e92364d
--- /dev/null
+++ b/lib/isc/pthreads/include/isc/Makefile.in
@@ -0,0 +1,36 @@
+# 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.
+
+srcdir =	@srcdir@
+VPATH =		@srcdir@
+top_srcdir =	@top_srcdir@
+
+VERSION=@BIND9_VERSION@
+
+HEADERS =	condition.h mutex.h once.h thread.h
+
+SUBDIRS =
+TARGETS =
+
+@BIND9_MAKE_RULES@
+
+installdirs:
+	$(SHELL) ${top_srcdir}/mkinstalldirs ${DESTDIR}${includedir}/isc
+
+install:: installdirs
+	for i in ${HEADERS}; do \
+		${INSTALL_DATA} $(srcdir)/$$i ${DESTDIR}${includedir}/isc || exit 1; \
+	done
+
+uninstall::
+	for i in ${HEADERS}; do \
+		rm -f ${DESTDIR}${includedir}/isc/$$i || exit 1; \
+	done
diff --git a/lib/isc/pthreads/include/isc/condition.h b/lib/isc/pthreads/include/isc/condition.h
new file mode 100644
index 0000000..8a79eb4
--- /dev/null
+++ b/lib/isc/pthreads/include/isc/condition.h
@@ -0,0 +1,64 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+/*! \file */
+
+#include <errno.h>
+
+#include <isc/error.h>
+#include <isc/lang.h>
+#include <isc/mutex.h>
+#include <isc/result.h>
+#include <isc/strerr.h>
+#include <isc/string.h>
+#include <isc/types.h>
+
+typedef pthread_cond_t isc_condition_t;
+
+#define isc_condition_init(cond)                                \
+	if (pthread_cond_init(cond, NULL) != 0) {               \
+		char isc_condition_strbuf[ISC_STRERRORSIZE];    \
+		strerror_r(errno, isc_condition_strbuf,         \
+			   sizeof(isc_condition_strbuf));       \
+		isc_error_fatal(__FILE__, __LINE__,             \
+				"pthread_cond_init failed: %s", \
+				isc_condition_strbuf);          \
+	}
+
+#if ISC_MUTEX_PROFILE
+#define isc_condition_wait(cp, mp)                                      \
+	((pthread_cond_wait((cp), &((mp)->mutex)) == 0) ? ISC_R_SUCCESS \
+							: ISC_R_UNEXPECTED)
+#else /* if ISC_MUTEX_PROFILE */
+#define isc_condition_wait(cp, mp)                            \
+	((pthread_cond_wait((cp), (mp)) == 0) ? ISC_R_SUCCESS \
+					      : ISC_R_UNEXPECTED)
+#endif /* if ISC_MUTEX_PROFILE */
+
+#define isc_condition_signal(cp) \
+	((pthread_cond_signal((cp)) == 0) ? ISC_R_SUCCESS : ISC_R_UNEXPECTED)
+
+#define isc_condition_broadcast(cp) \
+	((pthread_cond_broadcast((cp)) == 0) ? ISC_R_SUCCESS : ISC_R_UNEXPECTED)
+
+#define isc_condition_destroy(cp) \
+	((pthread_cond_destroy((cp)) == 0) ? ISC_R_SUCCESS : ISC_R_UNEXPECTED)
+
+ISC_LANG_BEGINDECLS
+
+isc_result_t
+isc_condition_waituntil(isc_condition_t *, isc_mutex_t *, isc_time_t *);
+
+ISC_LANG_ENDDECLS
diff --git a/lib/isc/pthreads/include/isc/mutex.h b/lib/isc/pthreads/include/isc/mutex.h
new file mode 100644
index 0000000..2390cd9
--- /dev/null
+++ b/lib/isc/pthreads/include/isc/mutex.h
@@ -0,0 +1,129 @@
+/*
+ * 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_MUTEX_H
+#define ISC_MUTEX_H 1
+
+/*! \file */
+
+#include <pthread.h>
+#include <stdio.h>
+
+#include <isc/lang.h>
+#include <isc/result.h> /* for ISC_R_ codes */
+
+ISC_LANG_BEGINDECLS
+
+/*!
+ * Supply mutex attributes that enable deadlock detection
+ * (helpful when debugging).  This is system dependent and
+ * currently only supported on NetBSD.
+ */
+#if ISC_MUTEX_DEBUG && defined(__NetBSD__) && defined(PTHREAD_MUTEX_ERRORCHECK)
+extern pthread_mutexattr_t isc__mutex_attrs;
+#define ISC__MUTEX_ATTRS &isc__mutex_attrs
+#else /* if ISC_MUTEX_DEBUG && defined(__NetBSD__) && \
+       * defined(PTHREAD_MUTEX_ERRORCHECK) */
+#define ISC__MUTEX_ATTRS NULL
+#endif /* if ISC_MUTEX_DEBUG && defined(__NetBSD__) && \
+	* defined(PTHREAD_MUTEX_ERRORCHECK) */
+
+/* XXX We could do fancier error handling... */
+
+/*!
+ * Define ISC_MUTEX_PROFILE to turn on profiling of mutexes by line.  When
+ * enabled, isc_mutex_stats() can be used to print a table showing the
+ * number of times each type of mutex was locked and the amount of time
+ * waiting to obtain the lock.
+ */
+#ifndef ISC_MUTEX_PROFILE
+#define ISC_MUTEX_PROFILE 0
+#endif /* ifndef ISC_MUTEX_PROFILE */
+
+#if ISC_MUTEX_PROFILE
+typedef struct isc_mutexstats isc_mutexstats_t;
+
+typedef struct {
+	pthread_mutex_t	  mutex; /*%< The actual mutex. */
+	isc_mutexstats_t *stats; /*%< Mutex statistics. */
+} isc_mutex_t;
+#else  /* if ISC_MUTEX_PROFILE */
+typedef pthread_mutex_t isc_mutex_t;
+#endif /* if ISC_MUTEX_PROFILE */
+
+#if ISC_MUTEX_PROFILE
+#define isc_mutex_init(mp) isc_mutex_init_profile((mp), __FILE__, __LINE__)
+#else /* if ISC_MUTEX_PROFILE */
+#if ISC_MUTEX_DEBUG && defined(PTHREAD_MUTEX_ERRORCHECK)
+#define isc_mutex_init(mp) isc_mutex_init_errcheck((mp))
+#else /* if ISC_MUTEX_DEBUG && defined(PTHREAD_MUTEX_ERRORCHECK) */
+#define isc_mutex_init(mp) isc__mutex_init((mp), __FILE__, __LINE__)
+void
+isc__mutex_init(isc_mutex_t *mp, const char *file, unsigned int line);
+#endif /* if ISC_MUTEX_DEBUG && defined(PTHREAD_MUTEX_ERRORCHECK) */
+#endif /* if ISC_MUTEX_PROFILE */
+
+#if ISC_MUTEX_PROFILE
+#define isc_mutex_lock(mp) isc_mutex_lock_profile((mp), __FILE__, __LINE__)
+#else /* if ISC_MUTEX_PROFILE */
+#define isc_mutex_lock(mp) \
+	((pthread_mutex_lock((mp)) == 0) ? ISC_R_SUCCESS : ISC_R_UNEXPECTED)
+#endif /* if ISC_MUTEX_PROFILE */
+
+#if ISC_MUTEX_PROFILE
+#define isc_mutex_unlock(mp) isc_mutex_unlock_profile((mp), __FILE__, __LINE__)
+#else /* if ISC_MUTEX_PROFILE */
+#define isc_mutex_unlock(mp) \
+	((pthread_mutex_unlock((mp)) == 0) ? ISC_R_SUCCESS : ISC_R_UNEXPECTED)
+#endif /* if ISC_MUTEX_PROFILE */
+
+#if ISC_MUTEX_PROFILE
+#define isc_mutex_trylock(mp)                                         \
+	((pthread_mutex_trylock((&(mp)->mutex)) == 0) ? ISC_R_SUCCESS \
+						      : ISC_R_LOCKBUSY)
+#else /* if ISC_MUTEX_PROFILE */
+#define isc_mutex_trylock(mp) \
+	((pthread_mutex_trylock((mp)) == 0) ? ISC_R_SUCCESS : ISC_R_LOCKBUSY)
+#endif /* if ISC_MUTEX_PROFILE */
+
+#if ISC_MUTEX_PROFILE
+#define isc_mutex_destroy(mp) \
+	RUNTIME_CHECK(pthread_mutex_destroy((&(mp)->mutex)) == 0)
+#else /* if ISC_MUTEX_PROFILE */
+#define isc_mutex_destroy(mp) RUNTIME_CHECK(pthread_mutex_destroy((mp)) == 0)
+#endif /* if ISC_MUTEX_PROFILE */
+
+#if ISC_MUTEX_PROFILE
+#define isc_mutex_stats(fp) isc_mutex_statsprofile(fp);
+#else /* if ISC_MUTEX_PROFILE */
+#define isc_mutex_stats(fp)
+#endif /* if ISC_MUTEX_PROFILE */
+
+#if ISC_MUTEX_PROFILE
+
+void
+isc_mutex_init_profile(isc_mutex_t *mp, const char *_file, int _line);
+isc_result_t
+isc_mutex_lock_profile(isc_mutex_t *mp, const char *_file, int _line);
+isc_result_t
+isc_mutex_unlock_profile(isc_mutex_t *mp, const char *_file, int _line);
+
+void
+isc_mutex_statsprofile(FILE *fp);
+#endif /* ISC_MUTEX_PROFILE */
+
+void
+isc_mutex_init_errcheck(isc_mutex_t *mp);
+
+ISC_LANG_ENDDECLS
+#endif /* ISC_MUTEX_H */
diff --git a/lib/isc/pthreads/include/isc/once.h b/lib/isc/pthreads/include/isc/once.h
new file mode 100644
index 0000000..481dba5
--- /dev/null
+++ b/lib/isc/pthreads/include/isc/once.h
@@ -0,0 +1,33 @@
+/*
+ * 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_ONCE_H
+#define ISC_ONCE_H 1
+
+/*! \file */
+
+#include <pthread.h>
+
+#include <isc/platform.h>
+#include <isc/result.h>
+
+typedef pthread_once_t isc_once_t;
+
+#define ISC_ONCE_INIT PTHREAD_ONCE_INIT
+
+/* XXX We could do fancier error handling... */
+
+#define isc_once_do(op, f) \
+	((pthread_once((op), (f)) == 0) ? ISC_R_SUCCESS : ISC_R_UNEXPECTED)
+
+#endif /* ISC_ONCE_H */
diff --git a/lib/isc/pthreads/include/isc/thread.h b/lib/isc/pthreads/include/isc/thread.h
new file mode 100644
index 0000000..6f83191
--- /dev/null
+++ b/lib/isc/pthreads/include/isc/thread.h
@@ -0,0 +1,74 @@
+/*
+ * 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 */