From 49def237a3a388c1fc97f883883a0922d3c67504 Mon Sep 17 00:00:00 2001
From: Russell Bryant <russell@russellbryant.com>
Date: Tue, 2 Sep 2008 15:09:20 +0000
Subject: [PATCH] I'm not sure how these files got to trunk (probably my
fault), but they should not be here
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@140563 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
res/ais/amf.c | 89 --------
res/ais/ckpt.c | 78 -------
res/ais/lck.c | 551 -------------------------------------------------
3 files changed, 718 deletions(-)
delete mode 100644 res/ais/amf.c
delete mode 100644 res/ais/ckpt.c
delete mode 100644 res/ais/lck.c
diff --git a/res/ais/amf.c b/res/ais/amf.c
deleted file mode 100644
index fec9af6e00..0000000000
--- a/res/ais/amf.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 2007, Digium, Inc.
- *
- * Russell Bryant <russell@digium.com>
- *
- * See http://www.asterisk.org for more information about
- * the Asterisk project. Please do not directly contact
- * any of the maintainers of this project for assistance;
- * the project provides a web site, mailing lists and IRC
- * channels for your use.
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License Version 2. See the LICENSE file
- * at the top of the source tree.
- */
-
-/*!
- * \file
- * \author Russell Bryant <russell@digium.com>
- *
- * \brief Usage of the SAForum AIS (Application Interface Specification)
- *
- * \arg http://www.openais.org/
- *
- * This file contains the code specific to the use of the AMF (Application
- * Management Framework).
- */
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$");
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "ais.h"
-
-#include "asterisk/module.h"
-#include "asterisk/utils.h"
-#include "asterisk/cli.h"
-#include "asterisk/logger.h"
-
-SaAmfHandleT amf_handle;
-
-static const SaAmfCallbacksT amf_callbacks = {
- .saAmfHealthcheckCallback = NULL,
- .saAmfComponentTerminateCallback = NULL,
- .saAmfCSISetCallback = NULL,
- .saAmfProtectionGroupTrackCallback = NULL,
-#if 0
- /*! XXX \todo These appear to be define in the B.02.01 spec, but this won't
- * compile with them in there. Look into it some more ... */
- .saAmfProxiedComponentInstantiateCallback = NULL,
- .saAmfProxiedComponentCleanupCallback = NULL,
-#endif
-};
-
-int ast_ais_amf_load_module(void)
-{
- SaAisErrorT ais_res;
-
- ais_res = saAmfInitialize(&amf_handle, &amf_callbacks, &ais_version);
- if (ais_res != SA_AIS_OK) {
- ast_log(LOG_ERROR, "Could not initialize AMF: %s\n",
- ais_err2str(ais_res));
- return -1;
- }
-
- return 0;
-}
-
-int ast_ais_amf_unload_module(void)
-{
- SaAisErrorT ais_res;
-
- ais_res = saAmfFinalize(amf_handle);
- if (ais_res != SA_AIS_OK) {
- ast_log(LOG_ERROR, "Problem stopping AMF: %s\n",
- ais_err2str(ais_res));
- return -1;
- }
-
- return 0;
-}
diff --git a/res/ais/ckpt.c b/res/ais/ckpt.c
deleted file mode 100644
index bdf4b312c4..0000000000
--- a/res/ais/ckpt.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 2007, Digium, Inc.
- *
- * Russell Bryant <russell@digium.com>
- *
- * See http://www.asterisk.org for more information about
- * the Asterisk project. Please do not directly contact
- * any of the maintainers of this project for assistance;
- * the project provides a web site, mailing lists and IRC
- * channels for your use.
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License Version 2. See the LICENSE file
- * at the top of the source tree.
- */
-
-/*!
- * \file
- * \author Russell Bryant <russell@digium.com>
- *
- * \brief Usage of the SAForum AIS (Application Interface Specification)
- *
- * \arg http://www.openais.org/
- *
- * This file contains the code specific to the use of the CKPT (Checkpoint)
- * service.
- */
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$");
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "ais.h"
-
-#include "asterisk/module.h"
-#include "asterisk/utils.h"
-#include "asterisk/cli.h"
-#include "asterisk/logger.h"
-
-SaCkptHandleT ckpt_handle;
-
-static const SaCkptCallbacksT ckpt_callbacks;
-
-int ast_ais_ckpt_load_module(void)
-{
- SaAisErrorT ais_res;
-
- ais_res = saCkptInitialize(&ckpt_handle, &ckpt_callbacks, &ais_version);
- if (ais_res != SA_AIS_OK) {
- ast_log(LOG_ERROR, "Could not initialize CKPT service: %s\n",
- ais_err2str(ais_res));
- return -1;
- }
-
- return 0;
-}
-
-int ast_ais_ckpt_unload_module(void)
-{
- SaAisErrorT ais_res;
-
- ais_res = saCkptFinalize(amf_handle);
- if (ais_res != SA_AIS_OK) {
- ast_log(LOG_ERROR, "Problem stopping CKPT service: %s\n",
- ais_err2str(ais_res));
- return -1;
- }
-
- return 0;
-}
diff --git a/res/ais/lck.c b/res/ais/lck.c
deleted file mode 100644
index 04252ff8b0..0000000000
--- a/res/ais/lck.c
+++ /dev/null
@@ -1,551 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 2007, Digium, Inc.
- *
- * Russell Bryant <russell@digium.com>
- *
- * See http://www.asterisk.org for more information about
- * the Asterisk project. Please do not directly contact
- * any of the maintainers of this project for assistance;
- * the project provides a web site, mailing lists and IRC
- * channels for your use.
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License Version 2. See the LICENSE file
- * at the top of the source tree.
- */
-
-/*!
- * \file
- * \author Russell Bryant <russell@digium.com>
- *
- * \brief Usage of the SAForum AIS (Application Interface Specification)
- *
- * \arg http://www.openais.org/
- *
- * This file contains the code specific to the use of the LCK
- * (Distributed Locks) Service.
- */
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$");
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "ais.h"
-
-#include "asterisk/module.h"
-#include "asterisk/utils.h"
-#include "asterisk/cli.h"
-#include "asterisk/logger.h"
-#include "asterisk/pbx.h"
-#include "asterisk/app.h"
-#include "asterisk/astobj2.h"
-#include "asterisk/strings.h"
-#include "asterisk/channel.h"
-
-SaLckHandleT lck_handle;
-
-/*!
- * \brief Callbacks available in the Lock Service
- *
- * None of these are actually required if only synchronous locking is used.
- * However, some of them must be implemented should the asynchronous locks
- * be used.
- */
-static SaLckCallbacksT lck_callbacks = {
- /*! Get notified when a cluster-wide lock gets created */
- .saLckResourceOpenCallback = NULL,
- /*! Get notified when an asynchronous lock request gets granted */
- .saLckLockGrantCallback = NULL,
- /*! Be informed when a currently held lock is blocking another node */
- .saLckLockWaiterCallback = NULL,
- /*! Get notified when an asynchronous unlock request is done */
- .saLckResourceUnlockCallback = NULL,
-};
-
-enum lock_type {
- RDLOCK,
- WRLOCK,
- TRY_RDLOCK,
- TRY_WRLOCK,
-};
-
-#define LOCK_BUCKETS 101
-
-/*!
- * Every thread that wants to use a distributed lock must open its own handle
- * to the lock. So, a thread-local container of opened locks is used to keep
- * track of what locks have been opened.
- *
- * \todo It would be nice to be able to have a thread-local container, instead
- * of using a thread-local wrapper like this.
- */
-struct lock_resources {
- struct ao2_container *locks;
-};
-
-static int lock_resources_init(void *);
-static void lock_resources_destroy(void *);
-
-AST_THREADSTORAGE_CUSTOM(locks_ts_key,
- lock_resources_init, lock_resources_destroy);
-
-struct lock_resource {
- SaLckResourceHandleT handle;
- SaLckLockIdT id;
- SaNameT ais_name;
- const char *name;
-};
-
-static int lock_hash_cb(const void *obj, int flags)
-{
- const struct lock_resource *lock = obj;
-
- return ast_str_hash(lock->name);
-}
-
-static int lock_cmp_cb(void *obj, void *arg, int flags)
-{
- struct lock_resource *lock1 = obj, *lock2 = arg;
-
- return !strcasecmp(lock1->name, lock2->name) ? CMP_MATCH | CMP_STOP : 0;
-}
-
-static int lock_resources_init(void *data)
-{
- struct lock_resources *lock_resources = data;
-
- if (!(lock_resources->locks = ao2_container_alloc(LOCK_BUCKETS,
- lock_hash_cb, lock_cmp_cb))) {
- return -1;
- }
-
- return 0;
-
-}
-
-static void lock_resources_destroy(void *data)
-{
- struct lock_resources *lock_resources = data;
-
- ao2_ref(lock_resources->locks, -1);
-
- ast_free(lock_resources);
-}
-
-static void lock_destructor(void *obj)
-{
- struct lock_resource *lock = obj;
-
- if (lock->name)
- ast_free((void *) lock->name);
-}
-
-static inline struct lock_resource *lock_ref(struct lock_resource *lock)
-{
- ao2_ref(lock, +1);
- return lock;
-}
-
-static inline struct lock_resource *lock_unref(struct lock_resource *lock)
-{
- ao2_ref(lock, -1);
- return NULL;
-}
-
-static void lock_datastore_destroy(void *data)
-{
- struct lock_resource *lock = data;
- SaAisErrorT ais_res;
-
- ais_res = saLckResourceUnlock(lock->id, SA_TIME_ONE_SECOND * 3);
- if (ais_res != SA_AIS_OK) {
- ast_log(LOG_ERROR, "Error unlocking '%s': %s\n", lock->name,
- ais_err2str(ais_res));
- }
-
- lock_unref(lock);
-}
-
-static struct lock_resource *find_lock(const char *name)
-{
- struct lock_resource *lock, tmp_lock = {
- .name = name,
- };
- SaAisErrorT ais_res;
- struct lock_resources *lock_resources;
-
- if (!(lock_resources = ast_threadstorage_get(&locks_ts_key,
- sizeof(*lock_resources)))) {
- return NULL;
- }
-
- /* Return the lock if it has already been opened by this thread */
- if ((lock = ao2_find(lock_resources->locks, &tmp_lock, OBJ_POINTER)))
- return lock;
-
- /* Allocate and open the lock */
- if (!(lock = ao2_alloc(sizeof(*lock), lock_destructor)))
- return NULL;
-
- if (!(lock->name = ast_strdup(name)))
- return lock_unref(lock);
-
- /* Map the name into the SaNameT for convenience */
- ast_copy_string((char *) lock->ais_name.value, lock->name,
- sizeof(lock->ais_name.value));
- lock->ais_name.length = strlen(lock->name);
-
- ais_res = saLckResourceOpen(lck_handle, &lock->ais_name,
- SA_LCK_RESOURCE_CREATE, SA_TIME_ONE_SECOND * 3, &lock->handle);
- if (ais_res != SA_AIS_OK) {
- ast_log(LOG_ERROR, "Failed to open lock: %s\n", ais_err2str(ais_res));
- return lock_unref(lock);
- }
-
- return lock;
-}
-
-const struct ast_datastore_info dlock_datastore_info = {
- .type = "DLOCK",
- .destroy = lock_datastore_destroy,
-};
-
-static void add_lock_to_chan(struct ast_channel *chan, struct lock_resource *lock,
- enum lock_type lock_type, double timeout, char *buf, size_t len)
-{
- struct ast_datastore *datastore;
- SaAisErrorT ais_res;
- SaLckLockModeT mode = 0;
- SaLckLockFlagsT flags = 0;
- SaLckLockStatusT status;
-
- ast_channel_lock(chan);
- datastore = ast_channel_datastore_find(chan, &dlock_datastore_info, lock->name);
-
- if (datastore) {
- ast_log(LOG_ERROR, "The DLOCK '%s' is already locked by channel '%s'\n",
- lock->name, chan->name);
- ast_channel_unlock(chan);
- ast_copy_string(buf, "FAILURE", len);
- return;
- }
- ast_channel_unlock(chan);
-
- switch (lock_type) {
- case TRY_RDLOCK:
- flags = SA_LCK_LOCK_NO_QUEUE;
- mode = SA_LCK_PR_LOCK_MODE;
- break;
- case RDLOCK:
- flags = SA_LCK_LOCK_NO_QUEUE;
- mode = SA_LCK_PR_LOCK_MODE;
- break;
- case TRY_WRLOCK:
- flags = SA_LCK_LOCK_NO_QUEUE;
- mode = SA_LCK_EX_LOCK_MODE;
- break;
- case WRLOCK:
- flags = SA_LCK_LOCK_NO_QUEUE;
- mode = SA_LCK_EX_LOCK_MODE;
- break;
- }
-
- /* Actually acquire the lock now */
- ais_res = saLckResourceLock(lock->handle, &lock->id, mode, flags, 0,
- (SaTimeT) timeout * SA_TIME_ONE_SECOND, &status);
- if (ais_res != SA_AIS_OK) {
- ast_log(LOG_ERROR, "Problem acquiring lock '%s': %s\n",
- lock->name, ais_err2str(ais_res));
- ast_copy_string(buf, (ais_res == SA_AIS_ERR_TIMEOUT) ? "TIMEOUT" :
- "FAILURE", len);
- return;
- }
-
- switch (status) {
- case SA_LCK_LOCK_GRANTED:
- ast_copy_string(buf, "SUCCESS", len);
- break;
- case SA_LCK_LOCK_DEADLOCK:
- ast_copy_string(buf, "DEADLOCK", len);
- return;
- /*! XXX \todo Need to look at handling these other cases in a different way */
- case SA_LCK_LOCK_NOT_QUEUED:
- case SA_LCK_LOCK_ORPHANED:
- case SA_LCK_LOCK_NO_MORE:
- case SA_LCK_LOCK_DUPLICATE_EX:
- ast_copy_string(buf, "FAILURE", len);
- return;
- }
-
- if (!(datastore = ast_channel_datastore_alloc(&dlock_datastore_info,
- lock->name))) {
- ast_copy_string(buf, "FAILURE", len);
- return;
- }
-
- datastore->data = lock_ref(lock);
-
- ast_channel_lock(chan);
- ast_channel_datastore_add(chan, datastore);
- ast_channel_unlock(chan);
-}
-
-static int handle_lock(struct ast_channel *chan, enum lock_type lock_type,
- char *data, char *buf, size_t len)
-{
- AST_DECLARE_APP_ARGS(args,
- AST_APP_ARG(name);
- AST_APP_ARG(timeout);
- );
- int res = 0;
- double timeout = 3;
- struct lock_resource *lock = NULL;
-
- ast_autoservice_start(chan);
-
- AST_STANDARD_APP_ARGS(args, data);
- if (ast_strlen_zero(args.name)) {
- ast_log(LOG_ERROR, "The DLOCK functions require a lock name\n");
- res = -1;
- goto return_cleanup;
- }
- switch (lock_type) {
- case RDLOCK:
- case WRLOCK:
- if (!ast_strlen_zero(args.timeout) && ((timeout = atof(args.timeout)) < 0)) {
- ast_log(LOG_ERROR, "Timeout value '%s' not valid\n", args.timeout);
- res = -1;
- goto return_cleanup;
- }
- break;
- case TRY_RDLOCK:
- case TRY_WRLOCK:
- if (!ast_strlen_zero(args.timeout)) {
- ast_log(LOG_ERROR, "The trylock functions only take one argument\n");
- res = -1;
- goto return_cleanup;
- }
- }
-
- if (!(lock = find_lock(args.name))) {
- ast_copy_string(buf, "FAILURE", len);
- res = -1;
- goto return_cleanup;
- }
-
- add_lock_to_chan(chan, lock, lock_type, timeout, buf, len);
-
- lock = lock_unref(lock);
-
-return_cleanup:
- ast_autoservice_stop(chan);
-
- return res;
-}
-
-static int handle_rdlock(struct ast_channel *chan, const char *cmd, char *data,
- char *buf, size_t len)
-{
- return handle_lock(chan, RDLOCK, data, buf, len);
-}
-
-static int handle_wrlock(struct ast_channel *chan, const char *cmd, char *data,
- char *buf, size_t len)
-{
- return handle_lock(chan, WRLOCK, data, buf, len);
-}
-
-static int handle_tryrdlock(struct ast_channel *chan, const char *cmd, char *data,
- char *buf, size_t len)
-{
- return handle_lock(chan, TRY_RDLOCK, data, buf, len);
-}
-
-static int handle_trywrlock(struct ast_channel *chan, const char *cmd, char *data,
- char *buf, size_t len)
-{
- return handle_lock(chan, TRY_WRLOCK, data, buf, len);
-}
-
-static int handle_unlock(struct ast_channel *chan, const char *cmd, char *data,
- char *buf, size_t len)
-{
- struct ast_datastore *datastore;
- struct lock_resource *lock;
- SaAisErrorT ais_res;
- int res = 0;
-
- if (ast_strlen_zero(data)) {
- ast_log(LOG_ERROR, "DLOCK_UNLOCK requires a lock name\n");
- ast_copy_string(buf, "FAILURE", len);
- return -1;
- }
-
- ast_autoservice_start(chan);
-
- ast_channel_lock(chan);
- datastore = ast_channel_datastore_find(chan, &dlock_datastore_info, data);
- if (!datastore) {
- ast_log(LOG_ERROR, "The DLOCK '%s' is not locked by channel '%s'\n",
- data, chan->name);
- ast_channel_unlock(chan);
- ast_copy_string(buf, "FAILURE", len);
- return -1;
- }
- ast_channel_datastore_remove(chan, datastore);
- ast_channel_unlock(chan);
-
- lock = datastore->data;
- ais_res = saLckResourceUnlock(lock->id, SA_TIME_ONE_SECOND * 3);
- if (ais_res != SA_AIS_OK) {
- ast_log(LOG_ERROR, "Error unlocking '%s': %s\n", lock->name,
- ais_err2str(ais_res));
- res = -1;
- ast_copy_string(buf, (ais_res == SA_AIS_ERR_TIMEOUT) ? "TIMEOUT" :
- "FAILURE", len);
- } else {
- ast_copy_string(buf, "SUCCESS", len);
- }
-
- datastore->data = lock_unref(lock);
- ast_channel_datastore_free(datastore);
-
- ast_autoservice_stop(chan);
-
- return res;
-}
-
-#define LOCK_DESC_COMMON \
-" The name of the lock can be anything. The first time a named lock gets\n" \
-"used, it will be automatically created and maintained amongst the cluster.\n" \
-" The result of this function will be one of the following:\n" \
-" SUCCESS | TIMEOUT | FAILURE | DEADLOCK\n" DEADLOCK_DESC
-
-#define DEADLOCK_DESC \
-" The result, DEADLOCK, can only be provided if the AIS implementation in\n" \
-"use provides the optional feature of deadlock detection. If the lock fails\n" \
-"with the result of DEADLOCK, it means that the AIS implementation has\n" \
-"determined that if this lock were acquired, it would cause a deadlock.\n"
-
-static struct ast_custom_function dlock_rdlock = {
- .name = "DLOCK_RDLOCK",
- .synopsis = "Read-lock a distributed lock",
- .desc =
-" This function will read-lock a distributed lock provided by the locking\n"
-"service of AIS. This is a blocking operation. However, a timeout can be\n"
-"specified to avoid deadlocks. The default timeout used if one is not\n"
-"provided as an argument is 3 seconds.\n"
-LOCK_DESC_COMMON
-"",
- .syntax = "DLOCK_RDLOCK(<lock_name>,[timeout])",
- .read = handle_rdlock,
-};
-
-static struct ast_custom_function dlock_wrlock = {
- .name = "DLOCK_WRLOCK",
- .synopsis = "Write-lock a distributed lock",
- .desc =
-" This function will write-lock a distributed lock provided by the locking\n"
-"service of AIS. This is a blocking operation. However, a timeout can be\n"
-"specified to avoid deadlocks. The default timeout used if one is not\n"
-"provided as an argument is 3 seconds.\n"
-LOCK_DESC_COMMON
-"",
- .syntax = "DLOCK_WRLOCK(<lock_name>,[timeout])",
- .read = handle_wrlock,
-};
-
-static struct ast_custom_function dlock_tryrdlock = {
- .name = "DLOCK_TRYRDLOCK",
- .synopsis = "Try to read-lock a distributed lock",
- .desc =
-" This function will attempt to read-lock a distributed lock provided by the\n"
-"locking service of AIS. This is a non-blocking operation.\n"
-" The name of the lock can be anything. The first time a named lock gets\n"
-"used, it will be automatically created and maintained amongst the cluster.\n"
-" The result of this function will be one of the following:\n"
-" SUCCESS | FAILURE | DEADLOCK\n"
-DEADLOCK_DESC
-"",
- .syntax = "DLOCK_TRYRDLOCK(<lock_name>)",
- .read = handle_tryrdlock,
-};
-
-static struct ast_custom_function dlock_trywrlock = {
- .name = "DLOCK_TRYWRLOCK",
- .synopsis = "Try to write-lock a distributed lock",
- .desc =
-" This function will attempt to write-lock a distributed lock provided by\n"
-"the locking service of AIS. This is a non-blocking operation.\n"
-" The name of the lock can be anything. The first time a named lock gets\n"
-"used, it will be automatically created and maintained amongst the cluster.\n"
-" The result of this function will be one of the following:\n"
-" SUCCESS | FAILURE | DEADLOCK\n"
-DEADLOCK_DESC
-"",
- .syntax = "DLOCK_TRYWRLOCK(<lock_name>)",
- .read = handle_trywrlock,
-};
-
-static struct ast_custom_function dlock_unlock = {
- .name = "DLOCK_UNLOCK",
- .synopsis = "Unlock a distributed lock",
- .desc =
-" This function will unlock a currently held distributed lock. This should\n"
-"be used regardless of the lock was read or write locked. The result of\n"
-"this funtion will be one of the following:\n"
-" SUCCESS | TIMEOUT | FAILURE\n"
-"",
- .syntax = "DLOCK_UNLOCK(<lock_name>)",
- .read = handle_unlock,
-};
-
-int ast_ais_lck_load_module(void)
-{
- SaAisErrorT ais_res;
- int res;
-
- ais_res = saLckInitialize(&lck_handle, &lck_callbacks, &ais_version);
- if (ais_res != SA_AIS_OK) {
- ast_log(LOG_ERROR, "Could not initialize distributed locking service: %s\n",
- ais_err2str(ais_res));
- return -1;
- }
-
- res = ast_custom_function_register(&dlock_rdlock);
- res |= ast_custom_function_register(&dlock_wrlock);
- res |= ast_custom_function_register(&dlock_tryrdlock);
- res |= ast_custom_function_register(&dlock_trywrlock);
- res |= ast_custom_function_register(&dlock_unlock);
-
- return res;
-}
-
-int ast_ais_lck_unload_module(void)
-{
- SaAisErrorT ais_res;
- int res = 0;
-
- ast_custom_function_unregister(&dlock_rdlock);
- ast_custom_function_unregister(&dlock_wrlock);
- ast_custom_function_unregister(&dlock_tryrdlock);
- ast_custom_function_unregister(&dlock_trywrlock);
- ast_custom_function_unregister(&dlock_unlock);
-
- ais_res = saLckFinalize(lck_handle);
- if (ais_res != SA_AIS_OK) {
- ast_log(LOG_ERROR, "Problem stopping distributed locking service: %s\n",
- ais_err2str(ais_res));
- res = -1;
- }
-
- return res;
-}
--
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