Commit Graph

113 Commits

Author SHA1 Message Date
Carles Cufi
892ac07a4a cmake: Add a new no_deprecation_warning compiler flag
Commit be40d854c2ccacf14ca3fcfb01bffdc9b075c6c9 introduced the ability
of building Zephyr with deprecation warnings enabled, by making
COMPILER_WARNINGS_AS_ERRORS depend on the newly added DEPRECATION_TEST
Kconfig option. This has the downside of disabling **all** warnings, not
only the deprecation ones.

This patch instead makes DEPRECATION_TEST disable only the deprecation
warning, but leaves COMPILER_WARNINGS_AS_ERRORS enabled.
This has the advantage of being able to see other unrelated warnings
(and fail if they appear) but has the disadvantage of not printing out
the deprecation warnings themselves (since they are disabled).

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2025-06-23 12:38:07 -07:00
Keith Packard
3cdc5a9f9a tests/kernel: Disable -Werror when testing deprecated pipe APIs
These two tests are validating that deprecated APIs still work
correctly. Which means they will definitely generate compile warnings.

To disable -Werror while letting it be enabled for other tests, create a
new Kconfig variable, DEPRECATION_TEST and make
COMPILER_WARNINGS_AS_ERRORS depend on that option being unselected. Add
this option to the two tests so that the resulting configuration
disables -Werror.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2025-05-23 17:41:40 -04:00
Daniel Mangum
f47330edd8 tests: kernel: set timeslice size to 0 in tests that do not exercise it
Sets CONFIG_TIMESLICE_SIZE=0 for tests that previously expected to run
without timeslicing enabled, and now fail with the default
CONFIG_TIMESLICE_SIZE=20. Note that timeslicing functionality is still
included, but no actual timeslicing is performed.

Signed-off-by: Daniel Mangum <georgedanielmangum@gmail.com>
2025-05-16 22:55:49 +02:00
Daniel Leung
1530e86877 tests: kernel/pipe_api: move local k_pipe var to global
When CONFIG_KERNEL_COHERENCE is enabled, pend_locked() asserts
when wait_q is not in coherent memory. The k_pipes used in
the pipe_api tests are declared locally within the test. They
are located within the thread stacks and those wait_q inside
k_pipe struct are thus not considered in coherent memory.
To make them work, replace the local ones with a global
k_pipe object. Since each test initializes the pipe object
locally, the tests are not functionally changed.

Fixes #84235

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2025-03-14 17:55:50 +01:00
Lars-Ove Karlsson
aad6b6c33e tests: kernel: Fixed disabling of __deprecated macros
When disabling the __deprecated macros in tests/kernel/pipe/deprecated,
the macros was set to ''. For IAR tools this was expanded to '' which
caused a compilation error.

I have replaced them with /* deprecated */ which should work for all
toolchains.

Signed-off-by: Lars-Ove Karlsson <lars-ove.karlsson@iar.com>
2025-03-07 19:53:17 +01:00
Robin Kastberg
20360ce95b tests: kernel: Don't use VLA in pipe_api test.
In the current pipe_api test file we inadvertantly use VLA.
Toolchains are allowed by standard to allocate VLA on
heap for example. Therefore in my opinion we shouldn't
use VLA atleast in kernel+kernel tests.

Signed-off-by: Robin Kastberg <robin.kastberg@iar.com>
2025-02-05 14:57:49 +01:00
Jamie McCrae
978f55926f tests: kernel: pipe: deprecated: Fix test wrongly passing paramater
Fix these tests so that the parameters are correctly passed to
other parts of the build

Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
2025-01-28 12:00:34 +01:00
Alberto Escolar Piedras
1ce3898832 tests pipe_api: Fix unitialized variable warning
Fix so the compiler does not throw a warning thinking that those
buffers may be used unitialized inside k_pipe_write/read().

Note clang does not the array size being of a variable size and
initialized as it throws a
"error: variable length array folded to constant array as an extension"

The issue was discovered with with gcc 14.2

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
2025-01-20 20:55:18 +01:00
Måns Ansgariusson
6782c5381d tests: kernel: pipe: Add new test cases for pipe API rework
This commit adds new test cases for the pipe API rework.
* basic.c: Sanity check for pipe operations.
* concurrency.c: Test pipe operations with multiple threads.
* stress.c: Test pipe operations under stress conditions.

And moves the old pipe test cases to the deprecated folder.

Signed-off-by: Måns Ansgariusson <Mansgariusson@gmail.com>
2025-01-17 19:43:44 +01:00
Yong Cong Sin
e54b27b967 arch: define struct arch_esf and deprecate z_arch_esf_t
Make `struct arch_esf` compulsory for all architectures by
declaring it in the `arch_interface.h` header.

After this commit, the named struct `z_arch_esf_t` is only used
internally to generate offsets, and is slated to be removed
from the `arch_interface.h` header in the future.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>
2024-06-04 14:02:51 -05:00
Daniel Leung
7c80746bc6 tests: kernel: use TC_END_REPORT for faults
Use TC_END_REPORT() to report "PROJECT EXECUTION FAILED"
instead of a call to printk() for ZTEST enabled tests. as
this prints the failed message as well as the RunID (and
whatever will be added in future).

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2024-02-28 13:39:15 -05:00
Peter Mitsis
94829f444c tests: Initialize array in pipe test
As the pointer to the data buffer passed to k_pipe_put() is now a
'const', that buffer must be initialized before calling k_pipe_put()
to avoid a compiler warning.

Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
2023-12-15 14:51:35 -05:00
Anas Nashif
345735d0a8 tests: remove CONFIG_ZTEST_NEW_API in all tests
Remove all usage of CONFIG_ZTEST_NEW_API from tests and sample as this
is now enabled by default.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2023-10-20 15:04:29 +02:00
Anas Nashif
a04a1d8991 tracing: remove references to deprecated k_pipe_block_put
k_pipe_block_put was deprecated some time ago.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2023-09-18 19:20:02 -04:00
Gerard Marull-Paretas
93b63df762 samples, tests: convert string-based twister lists to YAML lists
Twister now supports using YAML lists for all fields that were written
as space-separated lists. Used twister_to_list.py script. Some artifacts
on string length are due to how ruamel dumps content.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2023-05-10 09:52:37 +02:00
Daniel Leung
116998c677 tests: kernel: print FAILED when wrong faults caught
For some kernel tests, faults and exceptions are expected.
They are caught and the test would continue if the reasons
for faults are as expected. However, when the unexpected
reasons are encountered, the code simply prints a message
and calls k_fatal_halt(). When running under twister,
these messages are not the expected failed messages so
twister will spin till timeout although the execution
has already been halted. This adds another printk() before
halt to signal twister that the test has failed and bails
early.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2023-02-21 18:06:44 -05:00
Fabio Baltieri
f5b4acac57 yamllint: indentation: fix files in tests/
Fix the YAML files indentation for files in tests/.

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
2023-01-04 14:23:53 +01:00
Anas Nashif
808266a493 tests: use ignore_fault field instead of tags
Use dedicated field in the yaml file instead of mixing this testing
feature with tags.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2022-11-25 06:38:05 -05:00
Kumar Gala
4f0166088c tests: move to using CONFIG_MP_MAX_NUM_CPUS
For tests that set CONFIG_MP_NUM_CPUS, switch to using
CONFIG_MP_MAX_NUM_CPUS instead as we work to phase out
CONFIG_MP_NUM_CPUS.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2022-10-20 22:04:10 +09:00
Michał Barnaś
dae8efa692 ztest: remove the obsolete NULL appended to zassert macros
This commit removes the usage of NULL parameter as message in
zassert_* macros after making it optional

Signed-off-by: Michał Barnaś <mb@semihalf.com>
2022-09-09 07:05:38 -04:00
Peter Mitsis
029035cbea tests: Add CONFIG_PIPES to tests that use pipes
Use of pipes is now configurable. All tests that use pipes must enable
that feature. (Note: no sample projects currently use pipes.)

Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
2022-08-17 19:31:25 +02:00
Fabio Baltieri
def230187b test: fix more legacy #include paths
Add a bunch of missing "zephyr/" prefixes to #include statements in
various test and test framework files.

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
2022-08-02 16:41:41 +01:00
Guo Lixin
05c13ac094 tests: kernel: pipe_api: move to new ztest API
Move tests/kernel/pipe/pipe_api/ to use new ztest API.

Signed-off-by: Guo Lixin <lixinx.guo@intel.com>
2022-07-05 11:13:00 -04:00
Guo Lixin
af1e0c5a00 tests: pipe: move to new ztest API
Move tests/kernel/pipe/pipe/ to use new ztest API.
And make test case a little more independent.

Signed-off-by: Guo Lixin <lixinx.guo@intel.com>
2022-07-05 11:13:00 -04:00
Nazar Kazakov
f483b1bc4c everywhere: fix typos
Fix a lot of typos

Signed-off-by: Nazar Kazakov <nazar.kazakov.work@gmail.com>
2022-03-18 13:24:08 -04:00
Carles Cufi
e83a13aabf kconfig: Rename the TEST_EXTRA stack size option to align with the rest
All stack sizes should end with STACK_SIZE.

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2022-02-22 08:23:05 -05:00
Peter Mitsis
192265c661 tests: pipes: Add pipe flush tests
Extends the pipes tests to include tests for k_pipe_flush() and
k_pipe_buffer_flush().

Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
2022-01-10 12:17:14 -05:00
Torsten Rasmussen
1cccc8a8fe cmake: increase minimal required version to 3.20.0
Move to CMake 3.20.0.

At the Toolchain WG it was decided to move to CMake 3.20.0.

The main reason for increasing CMake version is better toolchain
support.

Better toolchain support is added in the following CMake versions:
- armclang, CMake 3.15
- Intel oneAPI, CMake 3.20
- IAR, CMake 3.15 and 3.20

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2021-08-20 09:47:34 +02:00
Ningx Zhao
8af2e07ada tests: pipe: test some error conditions
Add some testcases to test some error conditions
about pipe's APIs.

Signed-off-by: Ningx Zhao <ningx.zhao@intel.com>
2021-04-06 10:19:24 -04:00
Ningx Zhao
ec61259f26 kernel: pipe: add a return value check.
Add a ASSERT to check tpipe_put_small_size return
value.

Fixes #33827

Signed-off-by: Ningx Zhao <ningx.zhao@intel.com>
2021-04-06 15:32:04 +02:00
Shihao Shen
477f4d4e2b tests: kernel: pipe: second part of testcases to improve pipes coverage
Added test_pipe_get_large to cover branches in both k_pipe_put and
k_pipe_get. Added trivial testcases in test_pipe_avail_no_buffer to
cover trivial branches for k_pipe_read_avail and k_pipe_write_avail.
This is the second patch as the continuation of #31037.

Signed-off-by: Shihao Shen <shihao.shen@intel.com>
2021-03-18 12:53:06 -04:00
Shihao Shen
084989564a tests: kernel: pipe: testcases to improve code coverage for pipes
Added back test_pipe_alloc because the z_thread_malloc called in the
API has been updated to use k_heap instead of k_mem_pool.
Adjusted test_resource_pool_auto_free by replacing z_mem_pool_malloc
with k_heap_alloc. Added new test_k_pipe_cleanup to cover one more
branch in k_pipe_cleanup. Modified test_half_pipe_put_get to cover
branches for (reader != NULL) in k_pipe_put. Added test
test_pipe_get_put to cover branches for (writer != NULL)
in k_pipe_get. Added trivial tests to cover input validity checks.
Line coverage has been improved by 52%, function cov by 56%, and
branch cov by 46%.

Signed-off-by: Shihao Shen <shihao.shen@intel.com>
2021-03-17 19:10:25 -04:00
Andy Ross
fcd392f6ce kernel: subsys: lib: drivers: Use k_heap instead of z_mem_pool wrappers
Use the core k_heap API pervasively within our tree instead of the
z_mem_pool wrapper that provided compatibility with the older mempool
implementation.

Almost all of this is straightforward swapping of one alloc/free call
for another.  In a few cases where code was holding onto an old-style
"mem_block" a local compatibility struct with a single field has been
swapped in to keep the invasiveness of the changes down.

Note that not all the relevant changes in this patch have in-tree test
coverage, though I validated that it all builds.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2020-12-07 21:50:14 -05:00
Andy Ross
78614bf271 tests/kernel/pipe/pipe_api: Remove mem_pool-related test cases
Remove test cases that exercise the deprecated mem_pool features of
the pipe utility.

Note that this leaves comparatively few cases left, we should probably
audit coverage after this merges and rewrite tests that aren't
interdependent.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2020-12-07 21:50:14 -05:00
Andy Ross
c770cab1a3 kernel: Make thread resource pools into sys_heaps
The k_mem_pool allocator is no more, and the z_mem_pool compatibility
API is going away.  The internal allocator should be a k_heap always.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2020-12-07 21:50:14 -05:00
Andy Ross
6965cf526d kernel: Deprecate k_mem_pool APIs
Mark all k_mem_pool APIs deprecated for future code.  Remaining
internal usage now uses equivalent "z_mem_pool" symbols instead.

Fixes #24358

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2020-12-07 21:50:14 -05:00
Steven Wang
fcbbd32445 Test: correct an error in test_pipe_user_thread2thread().
In test_pipe_user_thread2thread(), what should be tested is
the pipe, which allocated with k_object_alloc(), rather than
"pipe" and "kpipe". That two pipes are already teseted in
test_pipe_thread2thread().

Signed-off-by: Steven Wang <steven.l.wang@linux.intel.com>
2020-11-20 10:57:05 +01:00
Steven Wang
788dd6356c Test: add doxygen comment for test_pipe_thread2thread().
Add doxygen comments for details of test_pipe_thread2thread().

By the way, plan to do the same thing to all test cases
in test_pipe_contexts.c.

Signed-off-by: Steven Wang <steven.l.wang@linux.intel.com>
2020-11-06 13:14:36 -05:00
YouhuaX Zhu
4772d40d5f Test: Refine annotaion and testcase for pipe.
1. Add more detail info to make the purpose and process
of the test cases more clear which include test goal,
test step, input, judging criteria, constraints, etc.,
and these can be seen in our Zephyr documentations.
2. Add more negative testcase.

Signed-off-by: YouhuaX Zhu <youhuax.zhu@intel.com>
2020-10-27 09:05:47 -04:00
Zhu YouhuaX
1f416d8d0d Tests: Add and modify testcases for pipe.
1. Add a new testcase for defining and initializing pipes at run time.
2. Add details comments for some testcases.

Signed-off-by: Zhu YouhuaX <youhuax.zhu@intel.com>
2020-06-09 08:13:46 -04:00
Kumar Gala
a1b77fd589 zephyr: replace zephyr integer types with C99 types
git grep -l 'u\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/u\(8\|16\|32\|64\)_t/uint\1_t/g"
	git grep -l 's\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/s\(8\|16\|32\|64\)_t/int\1_t/g"

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-06-08 08:23:57 -05:00
Marc Herbert
debade9121 tests: make find_package(Zephyr...) REQUIRED
... because it is (required).

This makes a difference when building with CMake and forgetting
ZEPHYR_BASE or not registering Zephyr in the CMake package registry.

In this particular case, REQUIRED turns this harmless looking log
statement:

-- Could NOT find Zephyr (missing: Zephyr_DIR)
-- The C compiler identification is GNU 9.3.0
-- The CXX compiler identification is GNU 9.3.0
-- Check for working C compiler: /usr/bin/cc
-- ...
-- ...
-- ...
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Error at CMakeLists.txt:8 (target_sources):
  Cannot specify sources for target "app" which is not built by
  this project.

... into this louder, clearer, faster and (last but not least) final
error:

CMake Error at CMakeLists.txt:5 (find_package):
  Could not find a package configuration file provided by "Zephyr" with
  any of the following names:

    ZephyrConfig.cmake
    zephyr-config.cmake

  Add the installation prefix of "Zephyr" to CMAKE_PREFIX_PATH or set
  "Zephyr_DIR" to a directory containing one of the above files.  If
  "Zephyr" provides a separate development package or SDK, be sure it
  has been installed.

-- Configuring incomplete, errors occurred!

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
2020-05-29 10:47:25 +02:00
Christopher Friedt
967f7a8bcb tests: kernel: pipe: tests for read_avail write_avail
Tests for issue #25036

Signed-off-by: Christopher Friedt <chrisfriedt@gmail.com>
2020-05-07 19:39:53 +02:00
Christopher Friedt
d650f4b494 kernel: pipe: fix !K_NO_WAIT and >= min_xfer bytes transferred
If timeout != K_NO_WAIT, then return immediately when not all
bytes_to_read or bytes_to_write have been transfered, but >=
min_xfer have been transferred.

Fixes #24485

Signed-off-by: Christopher Friedt <chrisfriedt@gmail.com>
2020-04-28 16:14:55 +02:00
Andy Ross
987658dcee tests/kernel: Fill allocation robustly for mpool heap backend
These five tests (mbox_api, mheap_api_concept, msgq_api, pipe_api and
queue) all had test cases where they needed a mem_pool allocation to
FAIL.  And they are all written to assume the behavior of the original
allocator and not the more general k_heap code, which actually
succeeds in a bunch of these cases.

* Even a very small heap saves enough metadata memory for the very
  small minimum block size, and this can be re-used as an allocation.
  So you can't assume a small heap is full.

* Calculating the number of blocks based on "num_blocks * max size /
  minimum size" and allocating them does not fill the heap, because
  the conservative metadata reservation leaves some space left over.

So these have all been modified to "fill" a heap by iteratively
allocating until failure.

Also, this fixes a benign overrun bug in mbox.  The test code would
insert a "big" message by reading past the end of the small message
buffer.  This didn't fail because it happened to be part of an array
of messages and the other ones defined contained the memory read.  But
still.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2020-04-14 10:05:55 -07:00
Andy Ross
7832738ae9 kernel/timeout: Make timeout arguments an opaque type
Add a k_timeout_t type, and use it everywhere that kernel API
functions were accepting a millisecond timeout argument.  Instead of
forcing milliseconds everywhere (which are often not integrally
representable as system ticks), do the conversion to ticks at the
point where the timeout is created.  This avoids an extra unit
conversion in some application code, and allows us to express the
timeout in units other than milliseconds to achieve greater precision.

The existing K_MSEC() et. al. macros now return initializers for a
k_timeout_t.

The K_NO_WAIT and K_FOREVER constants have now become k_timeout_t
values, which means they cannot be operated on as integers.
Applications which have their own APIs that need to inspect these
vs. user-provided timeouts can now use a K_TIMEOUT_EQ() predicate to
test for equality.

Timer drivers, which receive an integer tick count in ther
z_clock_set_timeout() functions, now use the integer-valued
K_TICKS_FOREVER constant instead of K_FOREVER.

For the initial release, to preserve source compatibility, a
CONFIG_LEGACY_TIMEOUT_API kconfig is provided.  When true, the
k_timeout_t will remain a compatible 32 bit value that will work with
any legacy Zephyr application.

Some subsystems present timeout (or timeout-like) values to their own
users as APIs that would re-use the kernel's own constants and
conventions.  These will require some minor design work to adapt to
the new scheme (in most cases just using k_timeout_t directly in their
own API), and they have not been changed in this patch, instead
selecting CONFIG_LEGACY_TIMEOUT_API via kconfig.  These subsystems
include: CAN Bus, the Microbit display driver, I2S, LoRa modem
drivers, the UART Async API, Video hardware drivers, the console
subsystem, and the network buffer abstraction.

k_sleep() now takes a k_timeout_t argument, with a k_msleep() variant
provided that works identically to the original API.

Most of the changes here are just type/configuration management and
documentation, but there are logic changes in mempool, where a loop
that used a timeout numerically has been reworked using a new
z_timeout_end_calc() predicate.  Also in queue.c, a (when POLL was
enabled) a similar loop was needlessly used to try to retry the
k_poll() call after a spurious failure.  But k_poll() does not fail
spuriously, so the loop was removed.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2020-03-31 19:40:47 -04:00
Andy Ross
32bb2395c2 timeout: Fix up API usage
Kernel timeouts have always been a 32 bit integer despite the
existence of generation macros, and existing code has been
inconsistent about using them.  Upcoming commits are going to make the
timeout arguments opaque, so fix things up to be rigorously correct.
Changes include:

+ Adding a K_TIMEOUT_EQ() macro for code that needs to compare timeout
  values for equality (e.g. with K_FOREVER or K_NO_WAIT).

+ Adding a k_msleep() synonym for k_sleep() which can continue to take
  integral arguments as k_sleep() moves away to timeout arguments.

+ Pervasively using the K_MSEC(), K_SECONDS(), et. al. macros to
  generate timeout arguments.

+ Removing the usage of K_NO_WAIT as the final argument to
  K_THREAD_DEFINE().  This is just a count of milliseconds and we need
  to use a zero.

This patch include no logic changes and should not affect generated
code at all.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2020-03-31 19:40:47 -04:00
Torsten Rasmussen
407b49b35c cmake: use find_package to locate Zephyr
Using find_package to locate Zephyr.

Old behavior was to use $ENV{ZEPHYR_BASE} for inclusion of boiler plate
code.

Whenever an automatic run of CMake happend by the build system / IDE
then it was required that ZEPHYR_BASE was defined.
Using ZEPHYR_BASE only to locate the Zephyr package allows CMake to
cache the base variable and thus allowing subsequent invocation even
if ZEPHYR_BASE is not set in the environment.

It also removes the risk of strange build results if a user switchs
between different Zephyr based project folders and forgetting to reset
ZEPHYR_BASE before running ninja / make.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2020-03-27 16:23:46 +01:00
Anas Nashif
361a84d07f kernel: pipe: runtime error checking
Add runtime error checking to k_pipe_cleanup and k_pipe_get and remove
asserts.
Adapted test which was expecting a fault to handle errors instead.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2020-01-20 17:19:54 -05:00
Nicolas Pitre
11a1ae5f7a test_pipe_contexts: fix mempool size issue and async pipe coverage
The minimum possible mempool block size is either 8 or 16 for 32-bit or
64-bit targets respectively. Defining BYTES_TO_WRITE to 4 and using that
with K_MEM_POOL_DEFINE() won't produce the expected result i.e. only 1
block at any time could be allocated instead of 4.

Yet, the test does run successfully regardless of the block allocation
loop in tpipe_block_put().

It turns out that the pipe buffer is large enough to consume all the
block data synchronously, meaning that the mempool block is freed right
away and available for the next loop iteration. This also means that the
asynchronous delivery mechanism is never exercized.

Fix both issues by defining PIPE_LEN and BYTES_TO_WRITE in terms of
_MPOOL_MINBLK with the expected factor of 4, and adding a new test
using the half-sized pipe where the pipe buffer gets saturated and
mempool memory blocks are actually queued for asynchronous consumption.

The source data string has to be extended to accommodate larger pipe
sizes too.

Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
2019-12-20 20:43:01 -05:00