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-/*
- * Copyright (c) 2017 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @file parc_ScheduledThreadPool.h
- * @ingroup threading
- * @brief <#Brief Description#>
- *
- * <#Detailed Description#>
- *
- */
-#ifndef PARCLibrary_parc_ScheduledThreadPool
-#define PARCLibrary_parc_ScheduledThreadPool
-#include <stdbool.h>
-
-#include <parc/algol/parc_JSON.h>
-#include <parc/algol/parc_HashCode.h>
-#include <parc/algol/parc_SortedList.h>
-#include <parc/concurrent/parc_FutureTask.h>
-#include <parc/concurrent/parc_ScheduledTask.h>
-#include <parc/concurrent/parc_Timeout.h>
-
-struct PARCScheduledThreadPool;
-typedef struct PARCScheduledThreadPool PARCScheduledThreadPool;
-
-/**
- * Increase the number of references to a `PARCScheduledThreadPool` instance.
- *
- * Note that new `PARCScheduledThreadPool` is not created,
- * only that the given `PARCScheduledThreadPool` reference count is incremented.
- * Discard the reference by invoking `parcScheduledThreadPool_Release`.
- *
- * @param [in] instance A pointer to a valid PARCScheduledThreadPool instance.
- *
- * @return The same value as @p instance.
- *
- * Example:
- * @code
- * {
- * PARCScheduledThreadPool *a = parcScheduledThreadPool_Create();
- *
- * PARCScheduledThreadPool *b = parcScheduledThreadPool_Acquire();
- *
- * parcScheduledThreadPool_Release(&a);
- * parcScheduledThreadPool_Release(&b);
- * }
- * @endcode
- */
-PARCScheduledThreadPool *parcScheduledThreadPool_Acquire(const PARCScheduledThreadPool *instance);
-
-#ifdef PARCLibrary_DISABLE_VALIDATION
-# define parcScheduledThreadPool_OptionalAssertValid(_instance_)
-#else
-# define parcScheduledThreadPool_OptionalAssertValid(_instance_) parcScheduledThreadPool_AssertValid(_instance_)
-#endif
-
-/**
- * Assert that the given `PARCScheduledThreadPool` instance is valid.
- *
- * @param [in] instance A pointer to a valid PARCScheduledThreadPool instance.
- *
- * Example:
- * @code
- * {
- * PARCScheduledThreadPool *a = parcScheduledThreadPool_Create();
- *
- * parcScheduledThreadPool_AssertValid(a);
- *
- * printf("Instance is valid.\n");
- *
- * parcScheduledThreadPool_Release(&b);
- * }
- * @endcode
- */
-void parcScheduledThreadPool_AssertValid(const PARCScheduledThreadPool *instance);
-
-/**
- * Create an instance of PARCScheduledThreadPool
- *
- * <#Paragraphs Of Explanation#>
- *
- * @return non-NULL A pointer to a valid PARCScheduledThreadPool instance.
- * @return NULL An error occurred.
- *
- * Example:
- * @code
- * {
- * PARCScheduledThreadPool *a = parcScheduledThreadPool_Create();
- *
- * parcScheduledThreadPool_Release(&a);
- * }
- * @endcode
- */
-PARCScheduledThreadPool *parcScheduledThreadPool_Create(int poolSize);
-
-/**
- * Compares @p instance with @p other for order.
- *
- * Returns a negative integer, zero, or a positive integer as @p instance
- * is less than, equal to, or greater than @p other.
- *
- * @param [in] instance A pointer to a valid PARCScheduledThreadPool instance.
- * @param [in] other A pointer to a valid PARCScheduledThreadPool instance.
- *
- * @return <0 Instance is less than @p other.
- * @return 0 Instance a and instance b compare the same.
- * @return >0 Instance a is greater than instance b.
- *
- * Example:
- * @code
- * {
- * PARCScheduledThreadPool *a = parcScheduledThreadPool_Create();
- * PARCScheduledThreadPool *b = parcScheduledThreadPool_Create();
- *
- * if (parcScheduledThreadPool_Compare(a, b) == 0) {
- * printf("Instances are equal.\n");
- * }
- *
- * parcScheduledThreadPool_Release(&a);
- * parcScheduledThreadPool_Release(&b);
- * }
- * @endcode
- *
- * @see parcScheduledThreadPool_Equals
- */
-int parcScheduledThreadPool_Compare(const PARCScheduledThreadPool *instance, const PARCScheduledThreadPool *other);
-
-/**
- * Create an independent copy the given `PARCBuffer`
- *
- * A new buffer is created as a complete copy of the original.
- *
- * @param [in] original A pointer to a valid PARCScheduledThreadPool instance.
- *
- * @return NULL Memory could not be allocated.
- * @return non-NULL A pointer to a new `PARCScheduledThreadPool` instance.
- *
- * Example:
- * @code
- * {
- * PARCScheduledThreadPool *a = parcScheduledThreadPool_Create();
- *
- * PARCScheduledThreadPool *copy = parcScheduledThreadPool_Copy(&b);
- *
- * parcScheduledThreadPool_Release(&b);
- * parcScheduledThreadPool_Release(&copy);
- * }
- * @endcode
- */
-PARCScheduledThreadPool *parcScheduledThreadPool_Copy(const PARCScheduledThreadPool *original);
-
-/**
- * Print a human readable representation of the given `PARCScheduledThreadPool`.
- *
- * @param [in] instance A pointer to a valid PARCScheduledThreadPool instance.
- * @param [in] indentation The indentation level to use for printing.
- *
- * Example:
- * @code
- * {
- * PARCScheduledThreadPool *a = parcScheduledThreadPool_Create();
- *
- * parcScheduledThreadPool_Display(a, 0);
- *
- * parcScheduledThreadPool_Release(&a);
- * }
- * @endcode
- */
-void parcScheduledThreadPool_Display(const PARCScheduledThreadPool *instance, int indentation);
-
-/**
- * Determine if two `PARCScheduledThreadPool` instances are equal.
- *
- * The following equivalence relations on non-null `PARCScheduledThreadPool` instances are maintained: *
- * * It is reflexive: for any non-null reference value x, `parcScheduledThreadPool_Equals(x, x)` must return true.
- *
- * * It is symmetric: for any non-null reference values x and y, `parcScheduledThreadPool_Equals(x, y)` must return true if and only if
- * `parcScheduledThreadPool_Equals(y x)` returns true.
- *
- * * It is transitive: for any non-null reference values x, y, and z, if
- * `parcScheduledThreadPool_Equals(x, y)` returns true and
- * `parcScheduledThreadPool_Equals(y, z)` returns true,
- * then `parcScheduledThreadPool_Equals(x, z)` must return true.
- *
- * * It is consistent: for any non-null reference values x and y, multiple invocations of `parcScheduledThreadPool_Equals(x, y)`
- * consistently return true or consistently return false.
- *
- * * For any non-null reference value x, `parcScheduledThreadPool_Equals(x, NULL)` must return false.
- *
- * @param [in] x A pointer to a valid PARCScheduledThreadPool instance.
- * @param [in] y A pointer to a valid PARCScheduledThreadPool instance.
- *
- * @return true The instances x and y are equal.
- *
- * Example:
- * @code
- * {
- * PARCScheduledThreadPool *a = parcScheduledThreadPool_Create();
- * PARCScheduledThreadPool *b = parcScheduledThreadPool_Create();
- *
- * if (parcScheduledThreadPool_Equals(a, b)) {
- * printf("Instances are equal.\n");
- * }
- *
- * parcScheduledThreadPool_Release(&a);
- * parcScheduledThreadPool_Release(&b);
- * }
- * @endcode
- * @see parcScheduledThreadPool_HashCode
- */
-bool parcScheduledThreadPool_Equals(const PARCScheduledThreadPool *x, const PARCScheduledThreadPool *y);
-
-/**
- * Returns a hash code value for the given instance.
- *
- * The general contract of `HashCode` is:
- *
- * Whenever it is invoked on the same instance more than once during an execution of an application,
- * the `HashCode` function must consistently return the same value,
- * provided no information used in a corresponding comparisons on the instance is modified.
- *
- * This value need not remain consistent from one execution of an application to another execution of the same application.
- * If two instances are equal according to the {@link parcScheduledThreadPool_Equals} method,
- * then calling the {@link parcScheduledThreadPool_HashCode} method on each of the two instances must produce the same integer result.
- *
- * It is not required that if two instances are unequal according to the
- * {@link parcScheduledThreadPool_Equals} function,
- * then calling the `parcScheduledThreadPool_HashCode`
- * method on each of the two objects must produce distinct integer results.
- *
- * @param [in] instance A pointer to a valid PARCScheduledThreadPool instance.
- *
- * @return The hashcode for the given instance.
- *
- * Example:
- * @code
- * {
- * PARCScheduledThreadPool *a = parcScheduledThreadPool_Create();
- *
- * PARCHashCode hashValue = parcScheduledThreadPool_HashCode(buffer);
- * parcScheduledThreadPool_Release(&a);
- * }
- * @endcode
- */
-PARCHashCode parcScheduledThreadPool_HashCode(const PARCScheduledThreadPool *instance);
-
-/**
- * Determine if an instance of `PARCScheduledThreadPool` is valid.
- *
- * Valid means the internal state of the type is consistent with its required current or future behaviour.
- * This may include the validation of internal instances of types.
- *
- * @param [in] instance A pointer to a valid PARCScheduledThreadPool instance.
- *
- * @return true The instance is valid.
- * @return false The instance is not valid.
- *
- * Example:
- * @code
- * {
- * PARCScheduledThreadPool *a = parcScheduledThreadPool_Create();
- *
- * if (parcScheduledThreadPool_IsValid(a)) {
- * printf("Instance is valid.\n");
- * }
- *
- * parcScheduledThreadPool_Release(&a);
- * }
- * @endcode
- *
- */
-bool parcScheduledThreadPool_IsValid(const PARCScheduledThreadPool *instance);
-
-/**
- * Release a previously acquired reference to the given `PARCScheduledThreadPool` instance,
- * decrementing the reference count for the instance.
- *
- * The pointer to the instance is set to NULL as a side-effect of this function.
- *
- * If the invocation causes the last reference to the instance to be released,
- * the instance is deallocated and the instance's implementation will perform
- * additional cleanup and release other privately held references.
- *
- * @param [in,out] instancePtr A pointer to a pointer to the instance to release.
- *
- * Example:
- * @code
- * {
- * PARCScheduledThreadPool *a = parcScheduledThreadPool_Create();
- *
- * parcScheduledThreadPool_Release(&a);
- * }
- * @endcode
- */
-void parcScheduledThreadPool_Release(PARCScheduledThreadPool **instancePtr);
-
-/**
- * Create a `PARCJSON` instance (representation) of the given object.
- *
- * @param [in] instance A pointer to a valid PARCScheduledThreadPool instance.
- *
- * @return NULL Memory could not be allocated to contain the `PARCJSON` instance.
- * @return non-NULL An allocated C string that must be deallocated via parcMemory_Deallocate().
- *
- * Example:
- * @code
- * {
- * PARCScheduledThreadPool *a = parcScheduledThreadPool_Create();
- *
- * PARCJSON *json = parcScheduledThreadPool_ToJSON(a);
- *
- * printf("JSON representation: %s\n", parcJSON_ToString(json));
- * parcJSON_Release(&json);
- *
- * parcScheduledThreadPool_Release(&a);
- * }
- * @endcode
- */
-PARCJSON *parcScheduledThreadPool_ToJSON(const PARCScheduledThreadPool *instance);
-
-/**
- * Produce a null-terminated string representation of the specified `PARCScheduledThreadPool`.
- *
- * The result must be freed by the caller via {@link parcMemory_Deallocate}.
- *
- * @param [in] instance A pointer to a valid PARCScheduledThreadPool instance.
- *
- * @return NULL Cannot allocate memory.
- * @return non-NULL A pointer to an allocated, null-terminated C string that must be deallocated via {@link parcMemory_Deallocate}.
- *
- * Example:
- * @code
- * {
- * PARCScheduledThreadPool *a = parcScheduledThreadPool_Create();
- *
- * char *string = parcScheduledThreadPool_ToString(a);
- *
- * parcScheduledThreadPool_Release(&a);
- *
- * parcMemory_Deallocate(&string);
- * }
- * @endcode
- *
- * @see parcScheduledThreadPool_Display
- */
-char *parcScheduledThreadPool_ToString(const PARCScheduledThreadPool *instance);
-
-/**
- * Executes command with zero required delay.
- */
-void parcScheduledThreadPool_Execute(PARCScheduledThreadPool *pool, PARCFutureTask *command);
-
-/**
- * Gets the policy on whether to continue executing existing periodic tasks even when this executor has been shutdown.
- */
-bool parcScheduledThreadPool_GetContinueExistingPeriodicTasksAfterShutdownPolicy(PARCScheduledThreadPool *pool);
-
-/**
- * Gets the policy on whether to execute existing delayed tasks even when this executor has been shutdown.
- */
-bool parcScheduledThreadPool_GetExecuteExistingDelayedTasksAfterShutdownPolicy(PARCScheduledThreadPool *pool);
-
-/**
- * Returns the task queue used by this executor.
- */
-PARCSortedList *parcScheduledThreadPool_GetQueue(const PARCScheduledThreadPool *pool);
-
-/**
- * Gets the policy on whether cancelled tasks should be immediately removed from the work queue at time of cancellation.
- */
-bool parcScheduledThreadPool_GetRemoveOnCancelPolicy(const PARCScheduledThreadPool *pool);
-
-/**
- * Creates and executes a one-shot action that becomes enabled after the given delay.
- */
-PARCScheduledTask *parcScheduledThreadPool_Schedule(PARCScheduledThreadPool *pool, PARCFutureTask *task, const PARCTimeout *delay);
-
-/**
- * Creates and executes a periodic action that becomes enabled first after the given initial delay, and subsequently with the given period; that is executions will commence after initialDelay then initialDelay+period, then initialDelay + 2 * period, and so on.
- */
-PARCScheduledTask *parcScheduledThreadPool_ScheduleAtFixedRate(PARCScheduledThreadPool *pool, PARCFutureTask *task, PARCTimeout initialDelay, PARCTimeout period);
-
-/**
- * Creates and executes a periodic action that becomes enabled first after the given initial delay, and subsequently with the given delay between the termination of one execution and the commencement of the next.
- */
-PARCScheduledTask *parcScheduledThreadPool_ScheduleWithFixedDelay(PARCScheduledThreadPool *pool, PARCFutureTask *task, PARCTimeout initialDelay, PARCTimeout delay);
-
-/**
- * Sets the policy on whether to continue executing existing periodic tasks even when this executor has been shutdown.
- */
-void parcScheduledThreadPool_SetContinueExistingPeriodicTasksAfterShutdownPolicy(PARCScheduledThreadPool *pool, bool value);
-
-/**
- * Sets the policy on whether to execute existing delayed tasks even when this executor has been shutdown.
- */
-void parcScheduledThreadPool_SetExecuteExistingDelayedTasksAfterShutdownPolicy(PARCScheduledThreadPool *pool, bool value);
-
-/**
- * Sets the policy on whether cancelled tasks should be immediately removed from the work queue at time of cancellation.
- */
-void parcScheduledThreadPool_SetRemoveOnCancelPolicy(PARCScheduledThreadPool *pool, bool value);
-
-/**
- * Initiates an orderly shutdown in which previously submitted tasks are executed, but no new tasks will be accepted.
- */
-void parcScheduledThreadPool_Shutdown(PARCScheduledThreadPool *pool);
-
-/**
- * Attempts to stop all actively executing tasks, halts the processing of waiting tasks, and returns a list of the tasks that were awaiting execution.
- */
-PARCList *parcScheduledThreadPool_ShutdownNow(PARCScheduledThreadPool *pool);
-
-/**
- * Submits a PARCFutureTask task for execution and returns the PARCFutureTask representing that task.
- */
-PARCScheduledTask *parcScheduledThreadPool_Submit(PARCScheduledThreadPool *pool, PARCFutureTask *task);
-#endif