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Name	Size	Mode	Actions
basictz.h	8913	0644	edit dl rm
bms.h	8664	0644	edit dl rm
bmsearch.h	7316	0644	edit dl rm
brkiter.h	23001	0644	edit dl rm
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currunit.h	3057	0644	edit dl rm
datefmt.h	27946	0644	edit dl rm
dbbi.h	966	0644	edit dl rm
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docmain.h	6003	0644	edit dl rm
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dtintrv.h	3734	0644	edit dl rm
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msgfmt.h	39435	0644	edit dl rm
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numsys.h	5004	0644	edit dl rm
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platform.h	9961	0644	edit dl rm
plurfmt.h	23079	0644	edit dl rm
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pwin32.h	8668	0644	edit dl rm
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std_string.h	1769	0644	edit dl rm
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stringpiece.h	5484	0644	edit dl rm
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tblcoll.h	38199	0644	edit dl rm
timezone.h	34584	0644	edit dl rm
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translit.h	54780	0644	edit dl rm
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ubidi.h	83092	0644	edit dl rm
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ucal.h	40177	0644	edit dl rm
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uchar.h	111062	0644	edit dl rm
uchriter.h	13132	0644	edit dl rm
uclean.h	11855	0644	edit dl rm
ucnv.h	83111	0644	edit dl rm
ucnvsel.h	5630	0644	edit dl rm
ucnv_cb.h	6635	0644	edit dl rm
ucnv_err.h	21375	0644	edit dl rm
ucol.h	48826	0644	edit dl rm
ucoleitr.h	12356	0644	edit dl rm
uconfig.h	6035	0644	edit dl rm
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uidna.h	15918	0644	edit dl rm
uintrnal.h	15752	0644	edit dl rm
uiter.h	23234	0644	edit dl rm
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umachine.h	11360	0644	edit dl rm
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ustring.h	69383	0644	edit dl rm
usystem.h	1925	0644	edit dl rm
utext.h	58394	0644	edit dl rm
utf.h	8273	0644	edit dl rm
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utmscale.h	13689	0644	edit dl rm
utrace.h	13355	0644	edit dl rm
utrans.h	23129	0644	edit dl rm
utypes.h	34513	0644	edit dl rm
uversion.h	10902	0644	edit dl rm
vtzone.h	20048	0644	edit dl rm

Edit: /usr/include/unicode/uclean.h (11855B)

/*
******************************************************************************
*                                                                            *
* Copyright (C) 2001-2005, International Business Machines                   *
*                Corporation and others. All Rights Reserved.                *
*                                                                            *
******************************************************************************
*   file name:  uclean.h
*   encoding:   US-ASCII
*   tab size:   8 (not used)
*   indentation:4
*
*   created on: 2001July05
*   created by: George Rhoten
*/

#ifndef __UCLEAN_H__
#define __UCLEAN_H__

#include "unicode/utypes.h"
/**
 * \file
 * \brief C API: Initialize and clean up ICU
 */
 
/**
 * Initialize ICU. The description further below applies to ICU 2.6 to ICU 3.4.
 * Starting with ICU 3.4, u_init() needs not be called any more for
 * ensuring thread safety, but it can give an indication for whether ICU
 * can load its data. In ICU 3.4, it will try to load the converter alias table
 * (cnvalias.icu) and give an error code if that fails.
 * This may change in the future.
 * 
 * For ensuring the availability of necessary data, an application should
 * open the service objects (converters, collators, etc.) that it will use
 * and check for error codes there.
 * 
 * Documentation for ICU 2.6 to ICU 3.4:
 * 
 * This function loads and initializes data items
 * that are required internally by various ICU functions. Use of this explicit
 * initialization is required in multi-threaded applications; in 
 * single threaded apps, use is optional, but incurs little additional
 * cost, and is thus recommended.
 * 
 * In multi-threaded applications, u_init() should be called in the
 * main thread before starting additional threads, or, alternatively
 * it can be called in each individual thread once, before other ICU
 * functions are called in that thread. In this second scenario, the
 * application must guarantee that the first call to u_init() happen
 * without contention, in a single thread only.
 * 
 * If <code>u_setMemoryFunctions()</code> or 
 * <code>u_setMutexFunctions</code> are needed (uncommon), they must be
 * called _before_ <code>u_init()</code>.
 * 
 * Extra, repeated, or otherwise unneeded calls to u_init() do no harm,
 * other than taking a small amount of time.
 *
 * @param status An ICU UErrorCode parameter. It must not be <code>NULL</code>.
 * An Error will be returned if some required part of ICU data can not
 * be loaded or initialized.
 * The function returns immediately if the input error code indicates a
 * failure, as usual.
 *
 * @stable ICU 2.6
 */ 
U_STABLE void U_EXPORT2 
u_init(UErrorCode *status);

/**
 * Clean up the system resources, such as allocated memory or open files,
 * used in all ICU libraries. This will free/delete all memory owned by the
 * ICU libraries, and return them to their original load state. All open ICU
 * items (collators, resource bundles, converters, etc.) must be closed before
 * calling this function, otherwise ICU may not free its allocated memory
 * (e.g. close your converters and resource bundles before calling this
 * function). Generally, this function should be called once just before
 * an application exits. For applications that dynamically load and unload
 * the ICU libraries (relatively uncommon), u_cleanup() should be called
 * just before the library unload.
 * 
 * u_cleanup() also clears any ICU heap functions, mutex functions or
 * trace functions that may have been set for the process. 
 * This has the effect of restoring ICU to its initial condition, before
 * any of these override functions were installed. Refer to
 * u_setMemoryFunctions(), u_setMutexFunctions and 
 * utrace_setFunctions(). If ICU is to be reinitialized after after
 * calling u_cleanup(), these runtime override functions will need to
 * be set up again if they are still required.
 * 
 * u_cleanup() is not thread safe. All other threads should stop using ICU
 * before calling this function.
 * 
 * Any open ICU items will be left in an undefined state by u_cleanup(),
 * and any subsequent attempt to use such an item will give unpredictable
 * results.
 * 
 * After calling u_cleanup(), an application may continue to use ICU by
 * calling u_init(). An application must invoke u_init() first from one single
 * thread before allowing other threads call u_init(). All threads existing
 * at the time of the first thread's call to u_init() must also call
 * u_init() themselves before continuing with other ICU operations. 
 * 
 * The use of u_cleanup() just before an application terminates is optional,
 * but it should be called only once for performance reasons. The primary
 * benefit is to eliminate reports of memory or resource leaks originating
 * in ICU code from the results generated by heap analysis tools.
 * 
 * Use this function with great care!
 * 
 *
 * @stable ICU 2.0
 * @system
 */
U_STABLE void U_EXPORT2 
u_cleanup(void);

/**
  * An opaque pointer type that represents an ICU mutex.
  * For user-implemented mutexes, the value will typically point to a
  *  struct or object that implements the mutex.
  * @stable ICU 2.8
  * @system
  */
typedef void *UMTX;

/**
  *  Function Pointer type for a user supplied mutex initialization function.
  *  The user-supplied function will be called by ICU whenever ICU needs to create a
  *  new mutex.  The function implementation should create a mutex, and store a pointer
  *  to something that uniquely identifies the mutex into the UMTX that is supplied
  *  as a paramter.
  *  @param context user supplied value, obtained from from u_setMutexFunctions().
  *  @param mutex   Receives a pointer that identifies the new mutex.
  *                 The mutex init function must set the UMTX to a non-null value.   
  *                 Subsequent calls by ICU to lock, unlock, or destroy a mutex will 
  *                 identify the mutex by the UMTX value.
  *  @param status  Error status.  Report errors back to ICU by setting this variable
  *                 with an error code.
  *  @stable ICU 2.8
  *  @system
  */
typedef void U_CALLCONV UMtxInitFn (const void *context, UMTX  *mutex, UErrorCode* status);

/**
  *  Function Pointer type for a user supplied mutex functions.
  *  One of the  user-supplied functions with this signature will be called by ICU
  *  whenever ICU needs to lock, unlock, or destroy a mutex.
  *  @param context user supplied value, obtained from from u_setMutexFunctions().
  *  @param mutex   specify the mutex on which to operate.
  *  @stable ICU 2.8
  *  @system
  */
typedef void U_CALLCONV UMtxFn   (const void *context, UMTX  *mutex);

/**
  *  Set the functions that ICU will use for mutex operations
  *  Use of this function is optional; by default (without this function), ICU will
  *  directly access system functions for mutex operations
  *  This function can only be used when ICU is in an initial, unused state, before
  *  u_init() has been called.
  *  This function may be used even when ICU has been built without multi-threaded
  *  support  (see ICU_USE_THREADS pre-processor variable, umutex.h)
  *  @param context This pointer value will be saved, and then (later) passed as
  *                 a parameter to the user-supplied mutex functions each time they
  *                 are called. 
  *  @param init    Pointer to a mutex initialization function.  Must be non-null.
  *  @param destroy Pointer to the mutex destroy function.  Must be non-null.
  *  @param lock    pointer to the mutex lock function.  Must be non-null.
  *  @param unlock  Pointer to the mutex unlock function.  Must be non-null.
  *  @param status  Receives error values.
  *  @stable ICU 2.8
  *  @system
  */  
U_STABLE void U_EXPORT2 
u_setMutexFunctions(const void *context, UMtxInitFn *init, UMtxFn *destroy, UMtxFn *lock, UMtxFn *unlock,
                    UErrorCode *status);

/**
  *  Pointer type for a user supplied atomic increment or decrement function.
  *  @param context user supplied value, obtained from from u_setAtomicIncDecFunctions().
  *  @param p   Pointer to a 32 bit int to be incremented or decremented
  *  @return    The value of the variable after the inc or dec operation.
  *  @stable ICU 2.8
  *  @system
  */
typedef int32_t U_CALLCONV UMtxAtomicFn(const void *context, int32_t *p);

/**
 *  Set the functions that ICU will use for atomic increment and decrement of int32_t values.
 *  Use of this function is optional; by default (without this function), ICU will
 *  use its own internal implementation of atomic increment/decrement.
 *  This function can only be used when ICU is in an initial, unused state, before
 *  u_init() has been called.
 *  @param context This pointer value will be saved, and then (later) passed as
 *                 a parameter to the increment and decrement functions each time they
 *                 are called.  This function can only be called 
 *  @param inc     Pointer to a function to do an atomic increment operation.  Must be non-null.
 *  @param dec     Pointer to a function to do an atomic decrement operation.  Must be non-null.
 *  @param status  Receives error values.
 *  @stable ICU 2.8
 *  @system
 */  
U_STABLE void U_EXPORT2 
u_setAtomicIncDecFunctions(const void *context, UMtxAtomicFn *inc, UMtxAtomicFn *dec,
                    UErrorCode *status);

/**
  *  Pointer type for a user supplied memory allocation function.
  *  @param context user supplied value, obtained from from u_setMemoryFunctions().
  *  @param size    The number of bytes to be allocated
  *  @return        Pointer to the newly allocated memory, or NULL if the allocation failed.
  *  @stable ICU 2.8
  *  @system
  */
typedef void *U_CALLCONV UMemAllocFn(const void *context, size_t size);
/**
  *  Pointer type for a user supplied memory re-allocation function.
  *  @param context user supplied value, obtained from from u_setMemoryFunctions().
  *  @param size    The number of bytes to be allocated
  *  @return        Pointer to the newly allocated memory, or NULL if the allocation failed.
  *  @stable ICU 2.8
  *  @system
  */
typedef void *U_CALLCONV UMemReallocFn(const void *context, void *mem, size_t size);
/**
  *  Pointer type for a user supplied memory free  function.  Behavior should be
  *  similar the standard C library free().
  *  @param context user supplied value, obtained from from u_setMemoryFunctions().
  *  @param mem     Pointer to the memory block to be resized
  *  @param size    The new size for the block
  *  @return        Pointer to the resized memory block, or NULL if the resizing failed.
  *  @stable ICU 2.8
  *  @system
  */
typedef void  U_CALLCONV UMemFreeFn (const void *context, void *mem);

/**
 *  Set the functions that ICU will use for memory allocation.
 *  Use of this function is optional; by default (without this function), ICU will
 *  use the standard C library malloc() and free() functions.
 *  This function can only be used when ICU is in an initial, unused state, before
 *  u_init() has been called.
 *  @param context This pointer value will be saved, and then (later) passed as
 *                 a parameter to the memory functions each time they
 *                 are called.
 *  @param a       Pointer to a user-supplied malloc function.
 *  @param r       Pointer to a user-supplied realloc function.
 *  @param f       Pointer to a user-supplied free function.
 *  @param status  Receives error values.
 *  @stable ICU 2.8
 *  @system
 */  
U_STABLE void U_EXPORT2 
u_setMemoryFunctions(const void *context, UMemAllocFn *a, UMemReallocFn *r, UMemFreeFn *f, 
                    UErrorCode *status);

#endif

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