Delete bundled copy of NSS and replace with README.

nss/lib/libpkix/include/pkix_pl_system.h

-/* 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 http://mozilla.org/MPL/2.0/. */
-/*
- * This file defines several platform independent functions to make system
- * calls in a portable manner.
- *
- */
-
-#ifndef _PKIX_PL_SYSTEM_H
-#define _PKIX_PL_SYSTEM_H
-
-#include "pkixt.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* General
- *
- * Please refer to the libpkix Programmer's Guide for detailed information
- * about how to use the libpkix library. Certain key warnings and notices from
- * that document are repeated here for emphasis.
- *
- * All identifiers in this file (and all public identifiers defined in
- * libpkix) begin with "PKIX_". Private identifiers only intended for use
- * within the library begin with "pkix_".
- *
- * A function returns NULL upon success, and a PKIX_Error pointer upon failure.
- *
- * Unless otherwise noted, for all accessor (gettor) functions that return a
- * PKIX_PL_Object pointer, callers should assume that this pointer refers to a
- * shared object. Therefore, the caller should treat this shared object as
- * read-only and should not modify this shared object. When done using the
- * shared object, the caller should release the reference to the object by
- * using the PKIX_PL_Object_DecRef function.
- *
- * While a function is executing, if its arguments (or anything referred to by
- * its arguments) are modified, free'd, or destroyed, the function's behavior
- * is undefined.
- *
- */
-
-/*
- * FUNCTION: PKIX_PL_Initialize
- * DESCRIPTION:
- *
- *  XXX If this function is really only meant to be used by PKIX_Initialize,
- *  why don't we just put it in a private header file rather than the public
- *  API. I think it may confuse users.
- *
- *  This function should NOT be called by applications. It is only meant to
- *  be used internally. The application needs only to call PKIX_Initialize,
- *  which in turn will call this function.
- *
- *  This function initializes data structures critical to the operation of
- *  libpkix. If initialization is not successful, an Error pointer is
- *  returned. This function should only be called once. If it is called more
- *  than once, the behavior is undefined.
- *
- *  No PKIX_* types and functions should be used before this function is
- *  called and returns successfully.
- *
- * PARAMETERS:
- *  "platformInitNeeded"
- *      Boolean indicating whether platform initialization is to be called
- *  "useArenas"
- *      Boolean indicating whether allocation is to be done using arenas or
- *      individual allocation (malloc).
- *  "pPlContext"
- *      Address at which platform-specific context pointer is stored. Must be
- *      non-NULL.
- * THREAD SAFETY:
- *  Not Thread Safe
- *
- *  This function assumes that no other thread is calling this function while
- *  it is executing.
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Initialize(
-        PKIX_Boolean platformInitNeeded,
-        PKIX_Boolean useArenas,
-        void **pPlContext);
-
-/*
- * FUNCTION: PKIX_PL_Shutdown
- * DESCRIPTION:
- *
- *  XXX If this function is really only meant to be used by PKIX_Shutdown,
- *  why don't we just put it in a private header file rather than the public
- *  API. I think it may confuse users.
- *
- *  This function should NOT be called by applications. It is only meant to
- *  be used internally. The application needs only to call PKIX_Shutdown,
- *  which in turn will call this function.
- *
- *  This function deallocates any memory used by the Portability Layer (PL)
- *  component of the libpkix library and shuts down any ongoing operations.
- *  This function should only be called once. If it is called more than once,
- *  the behavior is undefined.
- *
- *  No PKIX_* types and functions should be used after this function is called
- *  and returns successfully.
- *
- * PARAMETERS:
- *  "platformInitNeeded"
- *      Boolean value of whether PKIX initialized NSS: PKIX_TRUE if we
- *      called nssInit, PKIX_FALSE otherwise
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Not Thread Safe
- *
- *  This function makes use of global variables and should only be called once.
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Shutdown(void *plContext);
-
-/* standard memory management operations (not reference-counted) */
-
-/*
- * FUNCTION: PKIX_PL_Malloc
- * DESCRIPTION:
- *
- *  Allocates a block of "size" bytes. The bytes are not initialized. A
- *  pointer to the newly allocated memory will be stored at "pMemory". The
- *  memory allocated by PKIX_PL_Malloc() may only be freed by PKIX_PL_Free().
- *  If "size" equals zero, this function stores NULL at "pMemory".
- *
- * PARAMETERS:
- *  "size"
- *      Number of bytes to allocate.
- *  "pMemory"
- *      Address where newly allocated pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread safety depends on underlying thread safety of platform used by PL.
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Malloc(
-        PKIX_UInt32 size,
-        void **pMemory,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Calloc
- * DESCRIPTION:
- *
- *  Allocates memory for an array of "nElem" elements, with each element
- *  requiring "elSize" bytes, and with all the bits initialized to zero. A
- *  pointer to the newly allocated memory will be stored at "pMemory". The
- *  memory allocated by PKIX_PL_Calloc() may only be freed by PKIX_PL_Free().
- *  If "nElem" equals zero or "elSize" equals zero, this function stores NULL
- *  at "pMemory".
- *
- * PARAMETERS:
- *  "nElem"
- *      Number of elements needed.
- *  "elSize"
- *      Number of bytes needed per element.
- *  "pMemory"
- *      Address where newly allocated pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread safety depends on underlying thread safety of platform used by PL.
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Calloc(
-        PKIX_UInt32 nElem,
-        PKIX_UInt32 elSize,
-        void **pMemory,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Realloc
- * DESCRIPTION:
- *
- *  Resizes an existing block of memory (pointed to by "ptr") to "size" bytes.
- *  Stores a pointer to the resized memory at "pNewPtr". The "ptr" must
- *  originate from either PKIX_PL_Malloc(), PKIX_PL_Realloc(), or
- *  PKIX_PL_Calloc(). If "ptr" is NULL, this function behaves as if
- *  PKIX_PL_Malloc were called. If "ptr" is not NULL and "size" equals zero,
- *  the memory pointed to by "ptr" is deallocated and this function stores
- *  NULL at "pPtr".
- *
- * PARAMETERS:
- *  "ptr"
- *      A pointer to an existing block of memory.
- *  "size"
- *      New size in bytes.
- *  "pPtr"
- *      Address where newly allocated pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread safety depends on underlying thread safety of platform used by PL.
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Realloc(
-        void *ptr,
-        PKIX_UInt32 size,
-        void **pNewPtr,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Free
- * DESCRIPTION:
- *
- *  Frees a block of memory pointed to by "ptr". This value must originate with
- *  either PKIX_PL_Malloc(), PKIX_PL_Calloc, or PKIX_PL_Realloc(). If "ptr" is
- *  NULL, the function has no effect.
- *
- * PARAMETERS:
- *  "ptr"
- *      A pointer to an existing block of memory.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread safety depends on underlying thread safety of platform used by PL.
- * RETURNS:
- *  Returns NULL always.
- */
-PKIX_Error *
-PKIX_PL_Free(
-        void *ptr,
-        void *plContext);
-
-/* Callback Types
- *
- * The next few typedefs define function pointer types for the standard
- * functions associated with every object type. See the Implementation
- * Guidelines or the comments below for more information.
- */
-
-/*
- * TYPE: PKIX_PL_DestructorCallback
- * DESCRIPTION:
- *
- *  This callback function destroys (or DecRef's) any pointers contained in
- *  the user data for the Object pointed to by "object" before the Object is
- *  destroyed.
- *
- * PARAMETERS:
- *  "object"
- *      Address of Object to destroy. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe
- *
- *  Multiple threads must be able to safely call this function without
- *  worrying about conflicts (as long as they're not operating on the same
- *  object and nobody else is performing an operation on the object at the
- *  same time). Both of these conditions should be guaranteed by the fact that
- *  the object's ref count was reduced to 0 in a lock that's still held when
- *  this callback is called.
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-typedef PKIX_Error *
-(*PKIX_PL_DestructorCallback)(
-        PKIX_PL_Object *object,
-        void *plContext);
-
-/*
- * TYPE: PKIX_PL_EqualsCallback
- * DESCRIPTION:
- *
- *  This callback function compares the Object pointed to by "firstObject" with
- *  the Object pointed to by "secondObject" for equality and stores the result
- *  at "pResult" (PKIX_TRUE if equal; PKIX_FALSE if not).
- *
- * PARAMETERS:
- *  "firstObject"
- *      Address of first object to compare. Must be non-NULL.
- *  "secondObject"
- *      Address of second object to compare. Must be non-NULL.
- *  "pResult"
- *      Address where Boolean will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe
- *
- *  Multiple threads must be able to safely call this function without
- *  worrying about conflicts, even if they're operating on the same objects.
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-typedef PKIX_Error *
-(*PKIX_PL_EqualsCallback)(
-        PKIX_PL_Object *firstObject,
-        PKIX_PL_Object *secondObject,
-        PKIX_Boolean *pResult,
-        void *plContext);
-
-/*
- * TYPE: PKIX_PL_HashcodeCallback
- * DESCRIPTION:
- *
- *  This callback function computes the hashcode of the Object pointed to by
- *  "object" and stores the result at "pValue".
- *
- * PARAMETERS:
- *  "object"
- *      Address of Object whose hashcode is desired. Must be non-NULL.
- *  "pValue"
- *      Address where PKIX_UInt32 will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe
- *
- *  Multiple threads must be able to safely call this function without
- *  worrying about conflicts, even if they're operating on the same object.
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-typedef PKIX_Error *
-(*PKIX_PL_HashcodeCallback)(
-        PKIX_PL_Object *object,
-        PKIX_UInt32 *pValue,
-        void *plContext);
-
-/*
- * TYPE: PKIX_PL_ToStringCallback
- * DESCRIPTION:
- *
- *  This callback function converts the Object pointed to by "object" to a
- *  string representation and stores the result at "pString".
- *
- * PARAMETERS:
- *  "object"
- *      Object to get a string representation from. Must be non-NULL.
- *  "pString"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe
- *
- *  Multiple threads must be able to safely call this function without
- *  worrying about conflicts, even if they're operating on the same object.
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-typedef PKIX_Error *
-(*PKIX_PL_ToStringCallback)(
-        PKIX_PL_Object *object,
-        PKIX_PL_String **pString,
-        void *plContext);
-
-/*
- * TYPE: PKIX_PL_ComparatorCallback
- * DESCRIPTION:
- *
- *  This callback function determines how the Object pointed to by
- *  "firstObject" compares to the Object pointed to by "secondObject" and
- *  stores the result at "pResult".
- *
- *  Result is less than 0 if firstObject < secondObject
- *  Result equals 0 if firstObject = secondObject
- *  Result is greater than 0 if firstObject > secondObject
- *
- * PARAMETERS:
- *  "firstObject"
- *      Address of the first Object to compare. Must be non-NULL.
- *  "secondObject"
- *      Address of the second Object to compare. Must be non-NULL.
- *  "pResult"
- *      Address where PKIX_Int32 will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe
- *
- *  Multiple threads must be able to safely call this function without
- *  worrying about conflicts, even if they're operating on the same objects.
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-typedef PKIX_Error *
-(*PKIX_PL_ComparatorCallback)(
-        PKIX_PL_Object *firstObject,
-        PKIX_PL_Object *secondObject,
-        PKIX_Int32 *pResult,
-        void *plContext);
-
-/*
- * TYPE: PKIX_PL_DuplicateCallback
- * DESCRIPTION:
- *
- *  This callback function creates a copy of the Object pointed to by "object"
- *  and stores it at "pNewObject". Changes to the copy will not affect the
- *  original and vice versa.
- *
- *  Note that if "object" is immutable, the Duplicate callback function simply
- *  needs to increment the reference count on "object" and return a reference
- *  to "object".
- *
- * PARAMETERS:
- *  "object"
- *      Address of the object to be copied. Must be non-NULL.
- *  "pNewObject"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe
- *
- *  Multiple threads must be able to safely call this function without
- *  worrying about conflicts, even if they're operating on the same object.
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-typedef PKIX_Error *
-(*PKIX_PL_DuplicateCallback)(
-        PKIX_PL_Object *object,
-        PKIX_PL_Object **pNewObject,
-        void *plContext);
-
-/* reference-counted objects */
-
-/*
- * FUNCTION: PKIX_PL_Object_Alloc
- * DESCRIPTION:
- *
- *  Allocates a new Object of type "type" with "size" bytes and stores the
- *  resulting pointer at "pObject". The reference count of the newly
- *  allocated object will be initialized to 1. To improve performance, each
- *  object maintains a small cache for the results of Hashcode and ToString.
- *  Mutable objects should call InvalidateCache whenever changes are made to
- *  the object's state (after creation). If an error occurs during allocation,
- *  "pObject" will be set to NULL. If "size" equals zero, this function creates
- *  an Object with a reference count of 1, and places a pointer to unallocated
- *  memory at "pMemory".
- *
- * PARAMETERS:
- *  "type"
- *      The type code of this object. See pkixt.h for codes. The type code
- *      must be previously registered with PKIX_PL_Object_RegisterType().
- *  "size"
- *      The number of bytes needed for this object.
- *  "pMemory"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_Alloc(
-        PKIX_TYPENUM type,
-        PKIX_UInt32 size,
-        PKIX_PL_Object **pObject,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Object_IsTypeRegistered
- * DESCRIPTION:
- *
- *  Checks whether "type" has been registered by a previous call to
- *  PKIX_PL_Object_RegisterType() and stores the Boolean result at "pBool".
- *  This function will typically only be called by constructors for specific
- *  types.
- *
- * PARAMETERS:
- *  "type"
- *      The type code to check if valid.
- *  "pBool"
- *      Address where Boolean will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_IsTypeRegistered(
-        PKIX_UInt32 type,
-        PKIX_Boolean *pBool,
-        void *plContext);
-
-#ifdef PKIX_USER_OBJECT_TYPE
-/*
- * FUNCTION: PKIX_PL_Object_RegisterType
- * DESCRIPTION:
- *
- *  Registers a new Object with type value "type" and associates it with a set
- *  of functions ("destructor", "equalsFunction", "hashcodeFunction",
- *  "toStringFunction", "comparator", "duplicateFunction"). The new type value
- *  is also associated with a string pointed to by "description", which is used
- *  by the default ToStringCallback. This function may only be called with a
- *  particular "type" value once. If "destructor", "equalsFunction",
- *  "hashcodeFunction", or "toStringFunction" are NULL, default functions will
- *  be registered. However, if "comparator" and "duplicateFunction" are NULL,
- *  no functions will be registered and calls to PKIX_PL_Object_Compare and
- *  PKIX_PL_Object_Duplicate will result in an error.
- *
- * PARAMETERS:
- *  "type"
- *      The type code.
- *  "description"
- *      The string used by the default ToStringCallback. Default used if NULL.
- *  "destructor"
- *      The DestructorCallback function to be set. Default used if NULL.
- *  "equalsFunction"
- *      The EqualsCallback function to be set. Default used if NULL.
- *  "hashcodeFunction"
- *      The HashcodeCallback function to be set. Default used if NULL.

- *  "toStringFunction"
- *      The ToStringCallback function to be set. Default used if NULL.
- *  "comparator"
- *      The ComparatorCallback function to be set. None set if NULL. If no
- *      callback function is set in this field, calls to
- *      PKIX_PL_Object_Compare() will result in an error.
- *  "duplicateFunction"
- *      The DuplicateCallback function to be set. None set if NULL. If no
- *      callback function is set in this field, calls to
- *      PKIX_PL_Object_Duplicate() will result in an error.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an Object Error if "type" is already registered.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_RegisterType(
-        PKIX_UInt32 type,
-        char *description,
-        PKIX_PL_DestructorCallback destructor,
-        PKIX_PL_EqualsCallback equalsFunction,
-        PKIX_PL_HashcodeCallback hashcodeFunction,
-        PKIX_PL_ToStringCallback toStringFunction,
-        PKIX_PL_ComparatorCallback comparator,
-        PKIX_PL_DuplicateCallback duplicateFunction,
-        void *plContext);
-
-#endif
-/*
- * FUNCTION: PKIX_PL_Object_InvalidateCache
- * DESCRIPTION:
- *
- *  Invalidates the cache of the Object pointed to by "object". The cache
- *  contains results of Hashcode and ToString. This function should be used by
- *  mutable objects whenever changes are made to the Object's state (after
- *  creation).
- *
- *  For example, if ToString is called on a mutable Object, the result will be
- *  computed, cached, and returned. If the Object's state does not change, a
- *  subsequent call to ToString will recognize that the relevant result is
- *  cached and will simply return the result (without calling the Object's
- *  ToStringCallback to recompute it). However, when the Object's state
- *  changes, the cache needs to be invalidated in order to force a subsequent
- *  call to ToString to recompute the result.
- *
- * PARAMETERS:
- *  "object"
- *      Address of Object whose cache is to be invalidated. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- *
- * THREAD SAFETY
- *  Thread Safe - Object Type Table is locked during modification.
- *
- *  Multiple threads can safely call this function without worrying about
- *  conflicts, even if they're operating on the same object.
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_InvalidateCache(
-        PKIX_PL_Object *object,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Object_IncRef
- * DESCRIPTION:
- *
- *  Increments the reference count of the Object pointed to by "object".
- *
- * PARAMETERS:
- *  "object"
- *      Address of Object whose reference count is to be incremented.
- *      Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_IncRef(
-        PKIX_PL_Object *object,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Object_DecRef
- * DESCRIPTION:
- *
- *  Decrements the reference count of the Object pointed to by "object". If the
- *  resulting reference count is zero, the destructor (if any) registered for
- *  the Object's type (by PKIX_PL_RegisterType) will be called and then the
- *  Object will be destroyed.
- *
- * PARAMETERS:
- *  "object"
- *      Address of Object whose reference count is to be decremented.
- *      Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  If destructor is not called, multiple threads can safely call this function
- *  without worrying about conflicts, even if they're operating on the same
- *  object. If destructor is called, thread safety depends on the callback
- *  defined by PKIX_PL_RegisterType().
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_DecRef(
-        PKIX_PL_Object *object,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Object_Equals
- * DESCRIPTION:
- *
- *  Compares the Object pointed to by "firstObject" with the Object pointed to
- *  by "secondObject" for equality using the callback function registered for
- *  "firstObject"'s type, and stores the Boolean result at "pResult". While
- *  typical callbacks will return PKIX_FALSE if the objects are of different
- *  types, other callbacks may be capable of comparing objects of different
- *  types [which may correctly result in cases where Equals(first, second)
- *  differs from Equals(second, first)].
- *
- * PARAMETERS:
- *  "firstObject"
- *      Address of the first Object to compare. Must be non-NULL.
- *      The EqualsCallback for this Object will be called.
- *  "secondObject"
- *      Address of the second Object to compare. Must be non-NULL.
- *  "pResult"
- *      Address where Boolean will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread safety depends on the callback defined by PKIX_PL_RegisterType().
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an Object Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_Equals(
-        PKIX_PL_Object *firstObject,
-        PKIX_PL_Object *secondObject,
-        PKIX_Boolean *pResult,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Object_Hashcode
- * DESCRIPTION:
- *
- *  Computes a hashcode of the Object pointed to by "object" using the
- *  callback registered for "object"'s type and stores it at "pValue". Two
- *  objects which are equal should have the same hashcode. Once a call to
- *  Hashcode has been made, the results are cached and subsequent calls to
- *  Hashcode will return the cached value. For mutable objects, an
- *  InvalidateCache function is provided, which should be called whenever
- *  changes are made to the object's state (after creation).
- *
- * PARAMETERS:
- *  "object"
- *      Address of the Object whose hashcode is desired. Must be non-NULL.
- *      The HashcodeCallback for this object will be called.
- *  "pValue"
- *      Address where PKIX_Int32 will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- *
- * THREAD SAFETY:
- *  Thread safety depends on the callback defined by PKIX_PL_RegisterType().
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an Object Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_Hashcode(
-        PKIX_PL_Object *object,
-        PKIX_UInt32 *pValue,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Object_ToString
- * DESCRIPTION:
- *
- *  Creates a string representation of the Object pointed to by "object" using
- *  the callback registered for "object"'s type and stores it at "pString".
- *  Once a call to ToString has been made, the results are cached and
- *  subsequent calls to ToString will return the cached value. For mutable
- *  objects, an InvalidateCache function is provided, which should be called
- *  whenever changes are made to the object's state (after creation).
- *
- * PARAMETERS:
- *  "object"
- *      Address of Object whose string representation is desired.
- *      Must be non-NULL. The ToStringCallback for this object will be called.
- *  "pString"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread safety depends on the callback defined by PKIX_PL_RegisterType().
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an Object Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_ToString(
-        PKIX_PL_Object *object,
-        PKIX_PL_String **pString,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Object_Compare
- * DESCRIPTION:
- *
- *  Compares the Object pointed to by "firstObject" and the Object pointed to
- *  by "secondObject" using the comparator registered for "firstObject"'s type
- *  and stores the result at "pResult". Different types may be compared. This
- *  may correctly result in cases where Compare(first, second) is not the
- *  opposite of Compare(second, first). The PKIX_Int32 value stored at
- *  "pResult" will be:
- *   Less than 0 if "firstObject" < "secondObject"
- *   Equals to 0 if "firstObject" = "secondObject"
- *   Greater than 0 if "firstObject" > "secondObject"
- *
- * PARAMETERS:
- *  "firstObject"
- *      Address of first Object to compare. Must be non-NULL.
- *      The ComparatorCallback for this object will be called.
- *  "secondObject"
- *      Address of second object to compare. Must be non-NULL.
- *  "pResult
- *      Address where PKIX_Int32 will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread safety depends on the comparator defined by PKIX_PL_RegisterType().
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an Object Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_Compare(
-        PKIX_PL_Object *firstObject,
-        PKIX_PL_Object *secondObject,
-        PKIX_Int32 *pResult,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Object_Duplicate
- * DESCRIPTION:
- *
- *  Creates a duplicate copy of the Object pointed to by "object" using the
- *  callback registered for "object"'s type and stores the copy at
- *  "pNewObject". Changes to the new object will not affect the original and
- *  vice versa.
- *
- *  Note that if "object" is immutable, the Duplicate callback function simply
- *  needs to increment the reference count on "object" and return a reference
- *  to "object".
- *
- * PARAMETERS:
- *  "object"
- *      Address of Object to be duplicated. Must be non-NULL.
- *      The DuplicateCallback for this Object will be called.
- *  "pNewObject"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread safety depends on the callback defined by PKIX_PL_RegisterType().
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an Object Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_Duplicate(
-        PKIX_PL_Object *object,
-        PKIX_PL_Object **pNewObject,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Object_GetType
- * DESCRIPTION:
- *
- *  Retrieves the type code of the Object pointed to by "object" and stores it
- *  at "pType". See pkixt.h for type codes.
- *
- * PARAMETERS:
- *  "object"
- *      Address of Object whose type is desired. Must be non-NULL.
- *  "pType"
- *      Address where PKIX_UInt32 will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_GetType(
-        PKIX_PL_Object *object,
-        PKIX_UInt32 *pType,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Object_Lock
- * DESCRIPTION:
- *
- *  Locks the Mutex associated with the Object pointed to by "object". When an
- *  object is created, it is associated with an object-specific Mutex to allow
- *  for synchronization when the fields of the object are modified.
- *
- * PARAMETERS:
- *  "object"
- *      Address of Object whose Mutex is to be locked. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_Lock(
-        PKIX_PL_Object *object,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Object_Unlock
- * DESCRIPTION:
- *
- *  Unlocks the Mutex associated with the Object pointed to by "object". When
- *  an object is created, it is associated with an object-specific Mutex to
- *  allow for synchronization when the fields of the object are modified.
- *
- * PARAMETERS:
- *  "object"
- *      Address of Object whose Mutex is to be unlocked. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Object_Unlock(
-        PKIX_PL_Object *object,
-        void *plContext);
-
-/* mutexes (locks) */
-
-/*
- * FUNCTION: PKIX_PL_Mutex_Create
- * DESCRIPTION:
- *
- *  Creates a new Mutex and stores it at "pNewLock".
- *
- * PARAMETERS:
- *  "pNewLock"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Mutex_Create(
-        PKIX_PL_Mutex **pNewLock,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Mutex_Lock
- * DESCRIPTION:
- *
- *  Locks the Mutex pointed to by "lock". If the Mutex is already locked, this
- *  function will block the current thread until the mutex can be locked by
- *  this thread.
- *
- * PARAMETERS:
- *  "lock"
- *      Address of Mutex to lock. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Mutex_Lock(
-        PKIX_PL_Mutex *lock,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Mutex_Unlock
- * DESCRIPTION:
- *
- *  Unlocks the Mutex pointed to by "lock" if the current thread holds the
- *  Mutex.
- *
- * PARAMETERS:
- *  "lock"
- *      Address of Mutex to unlock. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Mutex_Unlock(
-        PKIX_PL_Mutex *lock,
-        void *plContext);
-
-/* monitor (locks) */
-
-/*
- * FUNCTION: PKIX_PL_MonitorLock_Create
- * DESCRIPTION:
- *
- *  Creates a new PKIX_PL_MonitorLock and stores it at "pNewLock".
- *
- * PARAMETERS:
- *  "pNewLock"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_MonitorLock_Create(
-        PKIX_PL_MonitorLock **pNewLock,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_MonitorLock_Enter
- * DESCRIPTION:
- *
- *  Locks the MonitorLock pointed to by "lock". If the MonitorLock is already
- *  locked by other thread, this function will block the current thread. If
- *  the "lock" had been locked by current thread, this function will NOT block.
- *
- * PARAMETERS:
- *  "lock"
- *      Address of MonitorLock to lock. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_MonitorLock_Enter(
-        PKIX_PL_MonitorLock *lock,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_MonitorLock_Exit
- * DESCRIPTION:
- *
- *  Unlocks the MonitorLock pointed to by "lock" if the lock counter of 
- *  current thread holds the MonitorLock reach 0, the lock is released.
- *
- * PARAMETERS:
- *  "lock"
- *      Address of MonitorLock to unlock. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_MonitorLock_Exit(
-        PKIX_PL_MonitorLock *lock,
-        void *plContext);
-
-/* strings and formatted printing */
-
-/*
- * FUNCTION: PKIX_PL_String_Create
- * DESCRIPTION:
- *
- *  Creates a new String using the data pointed to by "pString", the
- *  PKIX_UInt32 pointed to by "stringLen", and the PKIX_UInt32 pointed to by
- *  "fmtIndicator" and stores it at "pString". If the format is PKIX_ESCASCII
- *  the "stringLen" parameter is ignored and the string extends until a zero
- *  byte is  found. Once created, a String object is immutable.
- *
- *  Valid formats are:
- *      PKIX_ESCASCII
- *      PKIX_ESCASCII_DEBUG
- *      PKIX_UTF8
- *      PKIX_UTF8_NULL_TERM
- *      PKIX_UTF16
- *
- * PARAMETERS:
- *  "fmtIndicator"
- *      Format that "stringRep" is encoded with. Must be non-NULL.
- *  "stringRep"
- *      Address of encoded string representation. Must be non-NULL.
- *  "stringLen"
- *      Length of data stored at stringRep.
- *  "pString"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a String Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_String_Create(
-        PKIX_UInt32 fmtIndicator,
-        const void *stringRep,
-        PKIX_UInt32 stringLen,
-        PKIX_PL_String **pString,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_Sprintf
- * DESCRIPTION:
- *
- *  Creates a formatted string at "pOut" using the given format "fmt" and a
- *  variable length list of arguments. The format flags are identical to
- *  standard C with the exception that %s expects a PKIX_PL_String*, rather
- *  than a char *, and that {%d, %i, %o, %u, %x, %X} expect PKIX_UInt32 or
- *  PKIX_Int32 instead of int or unsigned int.
- *
- * PARAMETERS:
- *  "pOut"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- *  "fmt"
- *      Address of format string. Must be non-NULL.
- * THREAD SAFETY:
- *  Not Thread Safe - Caller must have exclusive access to all arguments.
- *  (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a String Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_Sprintf(
-        PKIX_PL_String **pOut,
-        void *plContext,
-        const PKIX_PL_String *fmt, ...);
-
-/*
- * FUNCTION: PKIX_PL_GetString
- * DESCRIPTION:
- *
- *  Retrieves the String associated with the value of "stringID" (if any) and
- *  stores it at "pString". If no such string is associated with "stringID",
- *  this function uses "defaultString" to create a String and stores it at
- *  "pString".
- *
- * PARAMETERS:
- *  "stringID"
- *      PKIX_UInt32 valud of string identifier.
- *  "defaultString"
- *      Address of a PKIX_ESCASCII encoded string representation.
- *      Must be non-NULL.
- *  "pString"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a String Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_GetString(
-        PKIX_UInt32 stringID,
-        char *defaultString,
-        PKIX_PL_String **pString,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_String_GetEncoded
- * DESCRIPTION:
- *
- *  Retrieves the value of the String pointed to by "string" in the encoding
- *  specified by "fmtIndicator" and stores the result in "pStringRep" and
- *  "pLength", respectively. Note that "pStringRep" is not reference counted
- *  and will need to be freed with PKIX_PL_Free().
- *
- * PARAMETERS:
- *  "string"
- *      Address of String whose encoded value is desired. Must be non-NULL.
- *  "fmtIndicator"
- *      Format of encoding. Supported formats are:
- *      PKIX_ESCASCII, PKIX_ESCASII_DEBUG, PKIX_UTF8, PKIX_UTF8_NULL_TERM, and
- *      PKIX_UTF16. XXX Where are these documented?
- *  "pStringRep"
- *      Address where pointer to encoded value will be stored.
- *      Must be non-NULL.
- *  "pLength"
- *      Address where byte length of encoded value will be stored.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a String Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_String_GetEncoded(
-        PKIX_PL_String *string,
-        PKIX_UInt32 fmtIndicator,
-        void **pStringRep,
-        PKIX_UInt32 *pLength,
-        void *plContext);
-
-/*
- * Hashtable
- *
- * A hashtable is a very efficient data structure used for mapping keys to
- * values. Any non-null PKIX_PL_Object can be used as a key or as a value,
- * provided that it correctly implements the PKIX_PL_EqualsCallback and the
- * PKIX_PL_HashcodeCallback. A hashtable consists of several buckets, with
- * each bucket capable of holding a linked list of key/value mappings. When
- * adding, retrieving, or deleting a value, the hashcode of the key is used to
- * determine which bucket's linked list is relevant. The corresponding
- * key/value pair is then appended, retrieved, or deleted.
- */
-
-/*
- * FUNCTION: PKIX_PL_HashTable_Create
- * DESCRIPTION:
- *
- *  Creates a new Hashtable with an initial capacity of "numBuckets" buckets
- *  and "maxEntriesPerBucket" of entries limit for each bucket and stores it
- *  at "pResult".
- *
- * PARAMETERS:
- *  "numBuckets"
- *      The initial number of hash table buckets. Must be non-zero.
- *  "maxEntriesPerBucket"
- *      The limit of entries per bucket. Zero means no limit.
- *  "pResult"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_HashTable_Create(
-        PKIX_UInt32 numBuckets,
-        PKIX_UInt32 maxEntriesPerBucket,
-        PKIX_PL_HashTable **pResult,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_HashTable_Add
- * DESCRIPTION:
- *
- *  Adds a key/value mapping using the Objects pointed to by "key" and "value"
- *  to the Hashtable pointed to by "ht".
- *
- *  Function increments key/value reference counts. Caller is responsible to
- *  to decrement(destroy) key/value ref counts(objects). 
- *
- * PARAMETERS:
- *  "ht"
- *      Address of Hashtable to be added to. Must be non-NULL.
- *  "key"
- *      Address of Object to be associated with "value". Must be non-NULL.
- *  "value"
- *      Address of Object to be added to Hashtable. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Not Thread Safe - assumes exclusive access to "ht"
- *  (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Hashtable Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_HashTable_Add(
-        PKIX_PL_HashTable *ht,
-        PKIX_PL_Object *key,
-        PKIX_PL_Object *value,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_HashTable_Remove
- * DESCRIPTION:
- *
- *  Removes the Object value whose key is equal to the Object pointed to by
- *  "key" from the Hashtable pointed to by "ht". If no such object exists,
- *  this function throws an Error.
- *
- *  Function frees "value" object. Caller is responsible to free "key"
- *  object.
- *
- * PARAMETERS:
- *  "ht"
- *      Address of Hashtable to remove object from. Must be non-NULL.
- *  "key"
- *      Address of Object used for lookup. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Not Thread Safe - assumes exclusive access to "ht"
- *  (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Hashtable Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_HashTable_Remove(
-        PKIX_PL_HashTable *ht,
-        PKIX_PL_Object *key,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_HashTable_Lookup
- * DESCRIPTION:
- *
- *  Retrieves the Object whose key equals the Object pointed to by "key" from
- *  the Hashtable associated with "ht" and stores it at "pResult". If no
- *  Object is found, this function stores NULL at "pResult".
- *
- * PARAMETERS:
- *  "ht"
- *      Address of Hashtable to lookup Object from. Must be non-NULL.
- *  "key"
- *      Address of key Object used for lookup. Must be non-NULL.
- *  "pResult"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Conditionally Thread Safe
- *      (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Hashtable Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_HashTable_Lookup(
-        PKIX_PL_HashTable *ht,
-        PKIX_PL_Object *key,
-        PKIX_PL_Object **pResult,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_ByteArray_Create
- * DESCRIPTION:
- *
- *  Creates a new ByteArray using "length" bytes of data pointed to by "array"
- *  and stores it at "pByteArray". Once created, a ByteArray is immutable.
- *
- * PARAMETERS:
- *  "array"
- *      Address of source data.
- *  "length"
- *      Number of bytes to copy.
- *  "pByteArray"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_ByteArray_Create(
-        void *array,
-        PKIX_UInt32 length,
-        PKIX_PL_ByteArray **pByteArray,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_ByteArray_GetPointer
- * DESCRIPTION:
- *
- *  Allocates enough memory to hold the contents of the ByteArray pointed to
- *  by "byteArray", copies the data from the ByteArray pointed to by
- *  "byteArray" into the newly allocated memory, and stores a pointer to the
- *  memory at "pArray". Note that "pArray" is not reference counted. It will
- *  need to be freed with PKIX_PL_Free().
- *
- * PARAMETERS:
- *  "byteArray"
- *      Address of ByteArray whose data is desired. Must be non-NULL.
- *  "pArray"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_ByteArray_GetPointer(
-        PKIX_PL_ByteArray *byteArray,
-        void **pArray,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_ByteArray_GetLength
- * DESCRIPTION:
- *
- *  Retrieves the length of the ByteArray pointed to by "byteArray" and stores
- *  the length at "pLength".
- *
- * PARAMETERS:
- *  "byteArray"
- *      Address of ByteArray whose length is desired. Must be non-NULL.
- *  "pLength"
- *      Address where PKIX_UInt32 will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_ByteArray_GetLength(
-        PKIX_PL_ByteArray *byteArray,
-        PKIX_UInt32 *pLength,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_OID_Create
- * DESCRIPTION:
- *
- *  Creates a new OID using NSS oid tag.
- *
- * PARAMETERS:
- *  "idtag"
- *      nss oid id tag.
- *  "pOID"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an OID Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_OID_Create(
-        SECOidTag idtag,
-        PKIX_PL_OID **pOID,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_OID_CreateBySECItem
- * DESCRIPTION:
- *
- *  Creates a new OID using a DER encoded OID stored as SECItem.
- *
- * PARAMETERS:
- *  "derOid"
- *      Address of SECItem that holds DER encoded OID.
- *  "pOID"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns an OID Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_OID_CreateBySECItem(
-        SECItem *derOid,
-        PKIX_PL_OID **pOID,
-        void *plContext);
-
-/*
- * FUNCTION: PKIX_PL_BigInt_Create
- * DESCRIPTION:
- *
- *  Creates a new BigInt using the source String pointed to by "stringRep" and
- *  stores it at "pBigInt". Valid source Strings consist of an even number of
- *  hexadecimal digits, which are always interpreted as a positive number.
- *  Once created, a BigInt is immutable.
- *
- *  The regexp format is:
- *      HexDigit  ::= [0-9] | [A-F] | [a-f]
- *      DoubleHex ::= HexDigit HexDigit
- *      BigIntSrc ::= (DoubleHex)+
- *
- *  Note that since we are using DoubleHex, the number of characters in the
- *  source MUST be even. Additionally, the first DoubleHex MUST NOT be "00"
- *  unless it is the only DoubleHex.
- *
- *  Valid  :    "09"
- *  Valid  :    "00"    (special case where first and only DoubleHex is "00")
- *  Invalid:    "9"     (not DoubleHex: odd number of characters)
- *  Invalid:    "0009"  (first DoubleHex is "00")
- *
- *  XXX Why does this take a String object while OID_Create takes a char* ?
- *  Perhaps because OID_Create is often used with constant strings and
- *  this function isn't. That's a good reason, but we should explain it
- *  (if it's right)
- * PARAMETERS:
- *  "stringRep"
- *      Address of String representing a BigInt. Must be non-NULL.
- *  "pBigInt"
- *      Address where object pointer will be stored. Must be non-NULL.
- *  "plContext"
- *      Platform-specific context pointer.
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  Returns NULL if the function succeeds.
- *  Returns a BigInt Error if the function fails in a non-fatal way.
- *  Returns a Fatal Error if the function fails in an unrecoverable way.
- */
-PKIX_Error *
-PKIX_PL_BigInt_Create(
-        PKIX_PL_String *stringRep,
-        PKIX_PL_BigInt **pBigInt,
-        void *plContext);
-
-#ifdef __cplusplus
-}
-#endif
-
-/*
- * FUNCTION: PKIX_PL_GetPLErrorCode
- * DESCRIPTION:
- *
- *  Returns error code from PL layer.
- *
- * THREAD SAFETY:
- *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
- * RETURNS:
- *  PL layer error code. 
- */
-int
-PKIX_PL_GetPLErrorCode();
-
-#endif /* _LIBPKIX_SYSTEM_H */