On Sun, Apr 30, 2023 at 11:21 PM <aaron.nyh...@unfoldedeffective.com> wrote:
>
> From: Aaron Nyholm <aaron.nyh...@southerninnovation.com>
>
> ---
> spec/build/testsuites/libtests/flashdev01.yml | 20 ++
> spec/build/testsuites/libtests/grp.yml | 2 +
> testsuites/libtests/flashdev01/flashdev01.doc | 11 +
> testsuites/libtests/flashdev01/flashdev01.scn | 2 +
> testsuites/libtests/flashdev01/init.c | 190 ++++++++++++
> .../libtests/flashdev01/test_flashdev.c | 275 ++++++++++++++++++
> .../libtests/flashdev01/test_flashdev.h | 35 +++
> 7 files changed, 535 insertions(+)
> create mode 100644 spec/build/testsuites/libtests/flashdev01.yml
> create mode 100644 testsuites/libtests/flashdev01/flashdev01.doc
> create mode 100644 testsuites/libtests/flashdev01/flashdev01.scn
> create mode 100644 testsuites/libtests/flashdev01/init.c
> create mode 100644 testsuites/libtests/flashdev01/test_flashdev.c
> create mode 100644 testsuites/libtests/flashdev01/test_flashdev.h
>
> diff --git a/spec/build/testsuites/libtests/flashdev01.yml
> b/spec/build/testsuites/libtests/flashdev01.yml
> new file mode 100644
> index 0000000000..c943caa2e7
> --- /dev/null
> +++ b/spec/build/testsuites/libtests/flashdev01.yml
> @@ -0,0 +1,20 @@
> +SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
> +build-type: test-program
> +cflags: []
> +copyrights:
> +- Copyright (C) 2023 Aaron Nyholm (Southern Innovation)
> +cppflags: []
> +cxxflags: []
> +enabled-by: true
> +features: c cprogram
> +includes: []
> +ldflags: []
> +links: []
> +source:
> +- testsuites/libtests/flashdev01/init.c
> +- testsuites/libtests/flashdev01/test_flashdev.c
> +stlib: []
> +target: testsuites/libtests/flashdev01.exe
> +type: build
> +use-after: []
> +use-before: []
> diff --git a/spec/build/testsuites/libtests/grp.yml
> b/spec/build/testsuites/libtests/grp.yml
> index 8f2cadb890..30965e5b2c 100644
> --- a/spec/build/testsuites/libtests/grp.yml
> +++ b/spec/build/testsuites/libtests/grp.yml
> @@ -124,6 +124,8 @@ links:
> uid: exit03
> - role: build-dependency
> uid: fcntl
> +- role: build-dependency
> + uid: flashdev01
> - role: build-dependency
> uid: flashdisk01
> - role: build-dependency
> diff --git a/testsuites/libtests/flashdev01/flashdev01.doc
> b/testsuites/libtests/flashdev01/flashdev01.doc
> new file mode 100644
> index 0000000000..0638a5a842
> --- /dev/null
> +++ b/testsuites/libtests/flashdev01/flashdev01.doc
> @@ -0,0 +1,11 @@
> +This file describes the directives and concepts testd by this test set.
> +
> +test set name: flashdev01
> +
> +directives:
> +
> + TBD
> +
> +concepts:
> +
> + - Ensure that the flashdev driver API works.
> diff --git a/testsuites/libtests/flashdev01/flashdev01.scn
> b/testsuites/libtests/flashdev01/flashdev01.scn
> new file mode 100644
> index 0000000000..809ff3cd80
> --- /dev/null
> +++ b/testsuites/libtests/flashdev01/flashdev01.scn
> @@ -0,0 +1,2 @@
> +*** BEGIN OF TEST FLASHDEV 1 ***
> +*** END OF TEST FLASHDEV 1 ***
> diff --git a/testsuites/libtests/flashdev01/init.c
> b/testsuites/libtests/flashdev01/init.c
> new file mode 100644
> index 0000000000..d9a5364481
> --- /dev/null
> +++ b/testsuites/libtests/flashdev01/init.c
> @@ -0,0 +1,190 @@
> +/*
> + * SPDX-License-Identifier: BSD-2-Clause
> + *
> + * Copyright (C) 2023 Aaron Nyholm
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions
> + * are met:
> + * 1. Redistributions of source code must retain the above copyright
> + * notice, this list of conditions and the following disclaimer.
> + * 2. Redistributions in binary form must reproduce the above copyright
> + * notice, this list of conditions and the following disclaimer in the
> + * documentation and/or other materials provided with the distribution.
> + *
> + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
> IS"
> + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
> + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
> + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
> + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
> + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
> + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
> + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
> + * POSSIBILITY OF SUCH DAMAGE.
> + */
> +
> +#include "tmacros.h"
> +
> +#include "test_flashdev.h"
> +
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <fcntl.h>
> +#include <sys/ioctl.h>
> +
> +#define TEST_NAME_LENGTH 10
> +
> +#define TEST_DATA_SIZE (PAGE_SIZE * PAGE_COUNT)
> +#define PAGE_COUNT 16
> +#define PAGE_SIZE 128
> +#define WB_SIZE 1
> +
> +const char rtems_test_name[] = "FLASHDEV 1";
> +
> +static void run_test(void);
> +
> +static void run_test(void) {
> +
> + char buff[TEST_DATA_SIZE] = {0};
> + FILE *file;
> + int fd;
> + rtems_flashdev* flash;
> + int status;
> + char* read_data;
> + rtems_flashdev_region e_args;
> + rtems_flashdev_ioctl_page_info pg_info;
> + rtems_flashdev_region region;
> + uint32_t jedec;
> + size_t page_count;
> + int type;
> + size_t wb_size;
> +
> + /* Initalize the flash device driver and flashdev */
> + flash = test_flashdev_init();
> + rtems_test_assert(flash != NULL);
> +
> + /* Register the flashdev as a device */
> + status = rtems_flashdev_register(flash, "dev/flashdev0");
> + rtems_test_assert(!status);
> +
> + /* Open the flashdev */
> + file = fopen("dev/flashdev0", "r+");
> + rtems_test_assert(file != NULL);
> + fd = fileno(file);
> +
> + /* Read data from flash */
> + read_data = fgets(buff, TEST_DATA_SIZE, file);
> + rtems_test_assert(read_data != NULL);
> +
> + /* Fseek to start of flash */
> + status = fseek(file, 0x0, SEEK_SET);
> + rtems_test_assert(!status);
> +
> + /* Write the test name to the flash */
> + status = fwrite(rtems_test_name, TEST_NAME_LENGTH, 1, file);
> + rtems_test_assert(status == 1);
> +
> + /* Fseek to start of flash and read again */
> + status = fseek(file, 0x0, SEEK_SET);
> + rtems_test_assert(!status);
> + fgets(buff, TEST_DATA_SIZE, file);
> + rtems_test_assert(!strncmp(buff, rtems_test_name, TEST_NAME_LENGTH));
> +
> + /* Test Erasing */
> + e_args.offset = 0x0;
> + e_args.size = PAGE_SIZE;
> + status = ioctl(fd, RTEMS_FLASHDEV_IOCTL_ERASE, &e_args);
> + rtems_test_assert(!status);
> +
> + fseek(file, 0x0, SEEK_SET);
> + fgets(buff, TEST_DATA_SIZE, file);
> + rtems_test_assert(buff[0] == 0);
> +
> + /* Test getting JEDEC ID */
> + status = ioctl(fd, RTEMS_FLASHDEV_IOCTL_JEDEC_ID, &jedec);
> + rtems_test_assert(!status);
> + rtems_test_assert(jedec == 0x00ABCDEF);
> +
> + /* Test getting flash type */
> + status = ioctl(fd, RTEMS_FLASHDEV_IOCTL_TYPE, &type);
> + rtems_test_assert(!status);
> + rtems_test_assert(type == RTEMS_FLASHDEV_NOR);
> +
> + /* Test getting page info from offset */
> + pg_info.location = PAGE_SIZE + PAGE_SIZE/2;
> +
> + status = ioctl(fd, RTEMS_FLASHDEV_IOCTL_PAGEINFO_BY_OFFSET, &pg_info);
> + rtems_test_assert(!status);
> + rtems_test_assert(pg_info.page_info.offset == PAGE_SIZE);
> + rtems_test_assert(pg_info.page_info.size == PAGE_SIZE);
> +
> + /* Test getting page info from index */
> + pg_info.location = 2;
> + status = ioctl(fd, RTEMS_FLASHDEV_IOCTL_PAGEINFO_BY_INDEX, &pg_info);
> + rtems_test_assert(!status);
> + rtems_test_assert(pg_info.page_info.offset == 2*PAGE_SIZE);
> + rtems_test_assert(pg_info.page_info.size == PAGE_SIZE);
> +
> + /* Test getting page count */
> + status = ioctl(fd, RTEMS_FLASHDEV_IOCTL_PAGE_COUNT, &page_count);
> + rtems_test_assert(!status);
> + rtems_test_assert(page_count == PAGE_COUNT);
> +
> + /* Test getting write block size */
> + status = ioctl(fd, RTEMS_FLASHDEV_IOCTL_WRITE_BLOCK_SIZE, &wb_size);
> + rtems_test_assert(!status);
> + rtems_test_assert(wb_size == WB_SIZE);
> +
> + /* Test Regions */
> + region.offset = 0x400;
> + region.size = 0x200;
> + status = ioctl(fd, RTEMS_FLASHDEV_IOCTL_REGION_SET, ®ion);
> + rtems_test_assert(!status);
> +
> + // Test read to larger then region
Avoid // comments
> + fseek(file, 0x0, SEEK_SET);
> + read_data = fgets(buff, 2048, file);
> + rtems_test_assert(read_data == NULL);
> +
> + // Test fseek outside of region
> + status = fseek(file, 0x201, SEEK_SET);
> + rtems_test_assert(status);
> +
> + // Write to base unset region and check the writes location
> + fseek(file, 0x0, SEEK_SET);
> + fwrite("HELLO WORLD", 11, 1, file);
> + ioctl(fd, RTEMS_FLASHDEV_IOCTL_REGION_UNSET, NULL);
> + fseek(file, 0x400, SEEK_SET);
> + fgets(buff, 11, file);
> + rtems_test_assert(strncmp(buff, "HELLO WORLD", 11));
> +}
> +
> +static void Init(rtems_task_argument arg)
> +{
> + TEST_BEGIN();
> +
> + run_test();
> +
> + TEST_END();
> + rtems_test_exit(0);
> +}
> +
> +#define CONFIGURE_MICROSECONDS_PER_TICK 2000
> +
> +#define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
> +
> +#define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 7
> +
> +#define CONFIGURE_MAXIMUM_TASKS 2
> +
> +#define CONFIGURE_MAXIMUM_SEMAPHORES 1
> +
> +#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
> +
> +#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
> +
> +#define CONFIGURE_INIT
> +
> +#include <rtems/confdefs.h>
> diff --git a/testsuites/libtests/flashdev01/test_flashdev.c
> b/testsuites/libtests/flashdev01/test_flashdev.c
> new file mode 100644
> index 0000000000..255e13fb9c
> --- /dev/null
> +++ b/testsuites/libtests/flashdev01/test_flashdev.c
> @@ -0,0 +1,275 @@
> +/*
> + * Copyright (C) 2023 Aaron Nyholm
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions
> + * are met:
> + * 1. Redistributions of source code must retain the above copyright
> + * notice, this list of conditions and the following disclaimer.
> + * 2. Redistributions in binary form must reproduce the above copyright
> + * notice, this list of conditions and the following disclaimer in the
> + * documentation and/or other materials provided with the distribution.
> + *
> + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
> IS"
> + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
> + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
> + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
> + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
> + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
> + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
> + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
> + * POSSIBILITY OF SUCH DAMAGE.
> + */
> +
> +#include "test_flashdev.h"
> +
> +#include <stdlib.h>
> +#include <string.h>
> +
> +#include <rtems/seterr.h>
> +
> +#define TEST_DATA_SIZE (PAGE_SIZE * PAGE_COUNT)
> +#define PAGE_COUNT 16
> +#define PAGE_SIZE 128
> +#define WB_SIZE 1
> +#define MAX_NUM_REGIONS 48
> +#define BITALLOC_SIZE 32
> +#define NUM_BITALLOC ((MAX_NUM_REGIONS + BITALLOC_SIZE - 1) / BITALLOC_SIZE)
> +
> +/**
> + * This flash device driver is for testing flashdev
> + * API calls.
> + */
> +typedef struct test_flashdev {
> + char* data;
> + uint32_t jedec_id;
> + uint32_t bit_allocator[NUM_BITALLOC];
> + rtems_flashdev_region regions[MAX_NUM_REGIONS];
> +} test_flashdev;
> +
> +int test_flashdev_page_by_off(
> + rtems_flashdev *flash,
> + off_t search_offset,
> + off_t *page_offset,
> + size_t *page_size
> +);
> +
> +int test_flashdev_page_by_index(
> + rtems_flashdev *flash,
> + off_t search_index,
> + off_t *page_offset,
> + size_t *page_size
> +);
> +
> +int test_flashdev_page_count(
> + rtems_flashdev *flash,
> + int *page_count
> +);
> +
> +int test_flashdev_wb_size(
> + rtems_flashdev *flash,
> + size_t *write_block_size
> +);
> +
> +uint32_t test_flashdev_jedec_id(
> + rtems_flashdev* flash
> +);
> +
> +int test_flashdev_type(
> + rtems_flashdev* flash,
> + rtems_flashdev_flash_type* type
> +);
> +
> +int test_flashdev_read(
> + rtems_flashdev* flash,
> + uintptr_t offset,
> + size_t count,
> + void* buffer
> +);
> +
> +int test_flashdev_write(
> + rtems_flashdev* flash,
> + uintptr_t offset,
> + size_t count,
> + const void* buffer
> +);
> +
> +int test_flashdev_erase(
> + rtems_flashdev* flash,
> + uintptr_t offset,
> + size_t count
> +);
> +
> +/* Function to handle find page info by offset */
nit: "Function to handle" is redundant information. It's generally not
necessary to say that a function is a function.
> +int test_flashdev_page_by_off(
> + rtems_flashdev *flash,
> + off_t search_offset,
> + off_t *page_offset,
> + size_t *page_size
> +)
> +{
> + *page_offset = search_offset - (search_offset%PAGE_SIZE);
> + *page_size = PAGE_SIZE;
> + return 0;
> +}
> +
> +/* Function to handle find page by index */
> +int test_flashdev_page_by_index(
> + rtems_flashdev *flash,
> + off_t search_index,
> + off_t *page_offset,
> + size_t *page_size
> +)
> +{
> + *page_offset = search_index * PAGE_SIZE;
> + *page_size = PAGE_SIZE;
> + return 0;
> +}
> +
> +/* Page count handler */
> +int test_flashdev_page_count(
> + rtems_flashdev *flash,
> + int *page_count
> +)
> +{
> + *page_count = PAGE_COUNT;
> + return 0;
> +}
> +
> +/* Write block size handler */
> +int test_flashdev_wb_size(
> + rtems_flashdev *flash,
> + size_t *write_block_size
> +)
> +{
> + *write_block_size = WB_SIZE;
> + return 0;
> +}
> +
> +/* JEDEC ID handler, this would normally require a READID
> + * call to the physical flash device.
> + */
> +uint32_t test_flashdev_jedec_id(
> + rtems_flashdev* flash
> +)
> +{
> + test_flashdev* driver = flash->driver;
> + return driver->jedec_id;
> +}
> +
> +/* Function to identify what kind of flash is attached. */
> +int test_flashdev_type(
> + rtems_flashdev *flash,
> + rtems_flashdev_flash_type *type
> +)
> +{
> + *type = RTEMS_FLASHDEV_NOR;
> + return 0;
> +}
> +
> +/* Read flash call. Any offset or count protections are
> + * required to be done in the driver function. */
> +int test_flashdev_read(
> + rtems_flashdev* flash,
> + uintptr_t offset,
> + size_t count,
> + void* buffer
> +)
> +{
> + test_flashdev* driver = flash->driver;
> +
> + if (offset + count > TEST_DATA_SIZE) {
> + rtems_set_errno_and_return_minus_one( EINVAL );
> + }
> +
> + memcpy(buffer, &driver->data[offset], count);
> + return 0;
> +}
> +
> +/* Write Flash call. Any offset or count protections are
> + * required to be done in the driver function. */
> +int test_flashdev_write(
> + rtems_flashdev* flash,
> + uintptr_t offset,
> + size_t count,
> + const void* buffer
> +)
> +{
> + test_flashdev* driver = flash->driver;
> +
> + if (offset + count > TEST_DATA_SIZE) {
> + rtems_set_errno_and_return_minus_one( EINVAL );
> + }
> +
> + memcpy(&driver->data[offset], buffer, count);
> + return 0;
> +}
> +
> +/* Erase Flash call. Any offset or count protections are
> + * required to be done in the driver function. */
> +int test_flashdev_erase(
> + rtems_flashdev* flash,
> + uintptr_t offset,
> + size_t count
> +)
> +{
> + test_flashdev* driver = flash->driver;
> +
> + if (offset + count > TEST_DATA_SIZE) {
> + rtems_set_errno_and_return_minus_one( EINVAL );
> + }
> +
> + if (offset%PAGE_SIZE || count%PAGE_SIZE) {
> + rtems_set_errno_and_return_minus_one( EINVAL );
> + }
> +
> + memset(&driver->data[offset], 0, count);
> + return 0;
> +}
> +
> +/* Initialize Flashdev and underlying driver. */
> +rtems_flashdev* test_flashdev_init(void)
> +{
> + rtems_flashdev *flash =
> rtems_flashdev_alloc_and_init(sizeof(rtems_flashdev));
> +
> + if (flash == NULL) {
> + return NULL;
> + }
> +
> + test_flashdev* flash_driver = calloc(1, sizeof(test_flashdev));
> +
> + if (flash_driver == NULL) {
> + rtems_flashdev_destroy_and_free(flash);
> + return NULL;
> + }
> +
> + flash_driver->data = calloc(1, TEST_DATA_SIZE);
> + if (flash_driver->data == NULL) {
> + free(flash_driver);
> + rtems_flashdev_destroy_and_free(flash);
> + return NULL;
> + }
> +
> + flash_driver->jedec_id = 0x00ABCDEF;
> +
> + rtems_flashdev_region_table *ftable = calloc(1,
> sizeof(rtems_flashdev_region_table));
> + ftable->max_regions = MAX_NUM_REGIONS;
> + ftable->regions = &(flash_driver->regions);
> + ftable->bit_allocator = &(flash_driver->bit_allocator);
> +
> + flash->driver = flash_driver;
> + flash->read = &test_flashdev_read;
> + flash->write = &test_flashdev_write;
> + flash->erase = &test_flashdev_erase;
> + flash->jedec_id = &test_flashdev_jedec_id;
> + flash->flash_type = &test_flashdev_type;
> + flash->page_info_by_offset = &test_flashdev_page_by_off;
> + flash->page_info_by_index = &test_flashdev_page_by_index;
> + flash->page_count = &test_flashdev_page_count;
> + flash->write_block_size = &test_flashdev_wb_size;
> + flash->region_table = ftable;
> +
> + return flash;
> +}
> diff --git a/testsuites/libtests/flashdev01/test_flashdev.h
> b/testsuites/libtests/flashdev01/test_flashdev.h
> new file mode 100644
> index 0000000000..8b03959c42
> --- /dev/null
> +++ b/testsuites/libtests/flashdev01/test_flashdev.h
> @@ -0,0 +1,35 @@
> +/* SPDX-License-Identifier: BSD-2-Clause */
> +
> +/*
> + * Copyright (C) 2023 Aaron Nyholm
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions
> + * are met:
> + * 1. Redistributions of source code must retain the above copyright
> + * notice, this list of conditions and the following disclaimer.
> + * 2. Redistributions in binary form must reproduce the above copyright
> + * notice, this list of conditions and the following disclaimer in the
> + * documentation and/or other materials provided with the distribution.
> + *
> + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
> IS"
> + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
> + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
> + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
> + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
> + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
> + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
> + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
> + * POSSIBILITY OF SUCH DAMAGE.
> + */
> +
> +#ifndef __TEST_FLASHDEV_H
> +#define __TEST_FLASHDEV_H
> +
> +#include <dev/flash/flashdev.h>
> +
> +rtems_flashdev* test_flashdev_init(void);
> +
> +#endif /* __TEST_FLASHDEV_H */
> --
> 2.25.1
>
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