4958c5d7b6
Change-Id: Ib6b876ff83aeba0d2346990ab2e9869cbf519284 Reviewed-on: https://review.haiku-os.org/c/haiku/+/6641 Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org> Reviewed-by: Adrien Destugues <pulkomandy@pulkomandy.tk>
92 lines
4.0 KiB
Plaintext
92 lines
4.0 KiB
Plaintext
/*
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* Copyright 2007-2010 Haiku, Inc. All rights reserved.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Nicolas de Leon, insdel@haqr.net
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* Niels Sascha Reedijk, niels.reedijk@gmail.com
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*/
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/*!
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\page support_intro Introduction to the Support Kit
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The Support Kit provides a handy set of classes that you can use in your
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applications. These classes provide:
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- \b Thread \b Safety. Haiku can execute multiple threads of an application
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in parallel, letting certain parts of an application continue when one part
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is stalled, as well as letting an application process multiple pieces of
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data at the same time on multicore or multiprocessor systems. However,
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there are times when multiple threads desire to work on the same piece of
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data at the same time, potentially causing a conflict where variables or
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pointers are changed by one thread causing another to execute incorrectly.
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To prevent this, Haiku implements a \"locking\" mechanism, allowing one
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thread to \"lock out\" other threads from executing code that might modify
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the same data.
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- \b Archiving \b and \b IO. These classes allow a programmer to convert
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objects into a form that can more easily be transferred to other
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applications or stored to disk, as well as performing basic input and
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output operations.
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- \b Memory \b Allocation. This class allows a programmer to hand off some of
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the duties of memory accounting and management.
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- \b Common \b Datatypes. To avoid unnecessary duplication of code and to
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make life easier for programmers, Haiku includes classes that handle
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management of ordered lists and strings.
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There are also a number of utility functions to time actions, play system
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alert sounds, compare strings, and atomically manipulate integers. Have a
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look at the overview, or go straight to the complete
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\link support list of components \endlink of this kit.
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\section Support Overview
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- Thread Safety:
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- BLocker provides a semaphore-like locking mechanism allowing for
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recursive locks.
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- BAutolock provides a simple method of automatically removing a lock
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when a function ends.
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- \ref TLS.h "Thread Local Storage" allows a global variable\'s content to
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be sensitive to thread context.
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- Archiving and IO:
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- BArchivable provides an interface for \"archiving\" objects so that they
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may be sent to other applications where an identical copy will be
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recreated.
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- BArchiver simplifies archiving of BArchivable hierarchies.
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- BUnarchiver simplifies unarchiving hierarchies that have been archived
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using BArchiver.
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- BFlattenable provides an interface for \"flattening\" objects so that
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they may be easily stored to disk.
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- BDataIO provides an interface for generalized read/write streams.
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- BPositionIO extends BDataIO to allow seeking within the data.
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- BBufferIO creates a buffer and attaches it to a BPositionIO stream,
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allowing for reduced load on the underlying stream.
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- BMemoryIO allows operation on an already-existing buffer.
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- BMallocIO creates and allows operation on a buffer.
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- Memory Allocation:
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- BBlockCache allows an application to allocate a \"pool\" of memory blocks
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that the application can fetch and dispose of as it pleases, letting the
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application make only a few large memory allocations, instead of many
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expensive small allocations.
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- Common Datatypes:
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- BList allows simple ordered lists and provides common access,
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modification, and comparison functions.
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- BString allows strings and provides common access, modification, and
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comparison functions.
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- BStopWatch allows an application to measure the time an action takes.
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- \ref support_globals "Global functions"
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- \ref TypeConstants.h "Common types and constants"
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- Error codes for all kits
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*/
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// Short listing of documents that belong to this module so that people can
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// find these from the module overview.
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// This should become standardized in Doxygen though. There is an item on
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// the todo list on this.
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/*!
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\addtogroup support
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For a better overview, have a look at \ref support_intro .
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*/
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