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https://github.com/darlinghq/darling.git
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Lubos Dolezel
112 lines
3.1 KiB
C
112 lines
3.1 KiB
C
/*
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* Copyright (c) 2013, 2016 Apple Inc. All rights reserved.
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*/
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#ifndef __PTHREAD_INTROSPECTION__
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#define __PTHREAD_INTROSPECTION__
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#include <sys/cdefs.h>
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#include <pthread/pthread.h>
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#include <Availability.h>
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/*!
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* @header
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*
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* @abstract
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* Introspection API for libpthread.
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*
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* This should only be used for introspection and debugging tools. Do not rely
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* on it in shipping code.
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*/
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__BEGIN_DECLS
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/*!
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* @typedef pthread_introspection_hook_t
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*
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* @abstract
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* A function pointer called at various points in a PThread's lifetime. The
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* function must be able to be called in contexts with invalid thread state.
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*
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* @param event
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* One of the events in pthread_introspection_event_t.
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*
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* @param thread
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* pthread_t associated with the event.
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*
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* @param addr
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* Address associated with the event, e.g. stack address.
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*
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* @param size
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* Size associated with the event, e.g. stack size.
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*/
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typedef void (*pthread_introspection_hook_t)(unsigned int event,
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pthread_t thread, void *addr, size_t size);
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/*!
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* @enum pthread_introspection_event_t
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*
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* @constant PTHREAD_INTROSPECTION_THREAD_CREATE
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* pthread_t was created.
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*
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* @constant PTHREAD_INTROSPECTION_THREAD_START
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* Thread has started and stack was allocated.
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*
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* @constant PTHREAD_INTROSPECTION_THREAD_TERMINATE
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* Thread is about to be terminated and stack will be deallocated.
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*
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* @constant PTHREAD_INTROSPECTION_THREAD_DESTROY
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* pthread_t is about to be destroyed.
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*/
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enum {
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PTHREAD_INTROSPECTION_THREAD_CREATE = 1,
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PTHREAD_INTROSPECTION_THREAD_START,
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PTHREAD_INTROSPECTION_THREAD_TERMINATE,
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PTHREAD_INTROSPECTION_THREAD_DESTROY,
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};
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/*!
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* @function pthread_introspection_hook_install
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*
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* @abstract
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* Install introspection hook function into libpthread.
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*
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* @discussion
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* The caller is responsible for implementing chaining to the hook that was
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* previously installed (if any).
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*
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* @param hook
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* Pointer to hook function.
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*
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* @result
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* Previously installed hook function or NULL.
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*/
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__OSX_AVAILABLE_STARTING(__MAC_10_9, __IPHONE_7_0)
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__attribute__((__nonnull__, __warn_unused_result__))
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extern pthread_introspection_hook_t
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pthread_introspection_hook_install(pthread_introspection_hook_t hook);
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__END_DECLS
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#endif
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