Files
openthread/tests/unit/test_priority_queue.cpp
Abtin Keshavarzian c55098af5e [message] change queues to use non-circular linked list (#11630)
This commit updates the `MessageQueue` and `PriorityQueue`
implementations to use non-circular doubly linked lists instead of
the previous circular ones. Using a non-circular list requires the
queue to track the head element, but it simplifies common operations
like getting the head and iterating over the messages.

Particularly, `Message::GetNext()` now simply returns the `mNext`
pointer. Previously, `Message` had to store a pointer to its `mQueue`
within its `Metadata` to identify the tail of the queue and stop the
iteration correctly.

This commit also updates the unit tests. In particular,
`test_priority_queue` is significantly enhanced to cover many
scenarios, such as multiple messages with the same priority, and
messages with different priorities being added and removed in various
orders.
2025-06-25 13:03:43 -07:00

710 lines
30 KiB
C++

/*
* Copyright (c) 2016, The OpenThread Authors.
* All rights reserved.
*
* 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.
* 3. Neither the name of the copyright holder nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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 HOLDER 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 <stdarg.h>
#include "common/debug.hpp"
#include "common/message.hpp"
#include "instance/instance.hpp"
#include "test_platform.h"
#include "test_util.h"
namespace ot {
// This function verifies the content of the priority queue to match the passed in messages
void VerifyPriorityQueueContent(PriorityQueue &aPriorityQueue, int aExpectedLength, ...)
{
const PriorityQueue &constQueue = aPriorityQueue;
va_list args;
Message *message;
Message *msgArg;
int8_t curPriority = Message::kNumPriorities;
PriorityQueue::Info info;
// Check the `GetInfo`
memset(&info, 0, sizeof(info));
aPriorityQueue.GetInfo(info);
VerifyOrQuit(info.mNumMessages == aExpectedLength, "GetInfo() result does not match expected len.");
va_start(args, aExpectedLength);
if (aExpectedLength == 0)
{
message = aPriorityQueue.GetHead();
VerifyOrQuit(message == nullptr, "PriorityQueue is not empty when expected len is zero.");
VerifyOrQuit(aPriorityQueue.GetHeadForPriority(Message::kPriorityLow) == nullptr);
VerifyOrQuit(aPriorityQueue.GetHeadForPriority(Message::kPriorityNormal) == nullptr);
VerifyOrQuit(aPriorityQueue.GetHeadForPriority(Message::kPriorityHigh) == nullptr);
VerifyOrQuit(aPriorityQueue.GetHeadForPriority(Message::kPriorityNet) == nullptr);
}
else
{
// Go through all messages in the queue and verify they match the passed-in messages
for (message = aPriorityQueue.GetHead(); message != nullptr; message = message->GetNext())
{
VerifyOrQuit(aExpectedLength != 0, "PriorityQueue contains more entries than expected.");
msgArg = va_arg(args, Message *);
if (msgArg->GetPriority() != curPriority)
{
for (curPriority--; curPriority != msgArg->GetPriority(); curPriority--)
{
// Check the `GetHeadForPriority` is nullptr if there are no expected message for this priority
// level.
VerifyOrQuit(aPriorityQueue.GetHeadForPriority(static_cast<Message::Priority>(curPriority)) ==
nullptr,
"is non-nullptr when no expected msg for this priority.");
}
// Check the `GetHeadForPriority`.
VerifyOrQuit(aPriorityQueue.GetHeadForPriority(static_cast<Message::Priority>(curPriority)) == msgArg);
}
// Check the queued message to match the one from argument list
VerifyOrQuit(msgArg == message, "PriorityQueue content does not match what is expected.");
aExpectedLength--;
}
VerifyOrQuit(aExpectedLength == 0, "PriorityQueue contains less entries than expected.");
// Check the `GetHeadForPriority` is nullptr if there are no expected message for any remaining priority level.
for (curPriority--; curPriority >= 0; curPriority--)
{
VerifyOrQuit(aPriorityQueue.GetHeadForPriority(static_cast<Message::Priority>(curPriority)) == nullptr,
"is non-nullptr when no expected msg for this priority.");
}
}
va_end(args);
// Check range-based `for` loop iteration using non-const iterator
message = aPriorityQueue.GetHead();
for (Message &msg : aPriorityQueue)
{
VerifyOrQuit(message == &msg, "`for` loop iteration does not match expected");
message = message->GetNext();
}
VerifyOrQuit(message == nullptr, "`for` loop iteration resulted in fewer entries than expected");
// Check range-base `for` iteration using const iterator
message = aPriorityQueue.GetHead();
for (const Message &constMsg : constQueue)
{
VerifyOrQuit(message == &constMsg, "`for` loop iteration does not match expected");
message = message->GetNext();
}
VerifyOrQuit(message == nullptr, "`for` loop iteration resulted in fewer entries than expected");
}
// NOLINTBEGIN(modernize-loop-convert)
void TestPriorityQueue(void)
{
static constexpr uint16_t kNumNewPriorityTestMessages = 2;
static constexpr uint16_t kNumSetPriorityTestMessages = 2;
static constexpr uint16_t kNumTestMessages = (kNumNewPriorityTestMessages + kNumSetPriorityTestMessages);
// Use two char abbreviated names for different priority levels;
static constexpr uint8_t kNw = Message::kPriorityNet; // Network level (highest priority)
static constexpr uint8_t kHi = Message::kPriorityHigh; // High priority
static constexpr uint8_t kMd = Message::kPriorityNormal; // Middle (or Normal) priority
static constexpr uint8_t kLo = Message::kPriorityLow; // Low priority.
static constexpr uint8_t kNumPriorities = Message::kNumPriorities;
Instance *instance;
MessagePool *messagePool;
PriorityQueue queue;
Message *msg[kNumPriorities][kNumTestMessages];
instance = testInitInstance();
VerifyOrQuit(instance != nullptr, "Null OpenThread instance");
messagePool = &instance->Get<MessagePool>();
for (uint8_t prio = 0; prio < kNumPriorities; prio++)
{
Message::Priority priority = static_cast<Message::Priority>(prio);
// Use the function "Allocate()" to allocate messages with different priorities
for (int i = 0; i < kNumNewPriorityTestMessages; i++)
{
msg[prio][i] = messagePool->Allocate(Message::kTypeIp6, 0, Message::Settings(priority));
VerifyOrQuit(msg[prio][i] != nullptr);
}
// Use the function "SetPriority()" to allocate messages with different priorities
for (int i = kNumNewPriorityTestMessages; i < kNumTestMessages; i++)
{
msg[prio][i] = messagePool->Allocate(Message::kTypeIp6);
VerifyOrQuit(msg[prio][i] != nullptr);
SuccessOrQuit(msg[prio][i]->SetPriority(priority));
}
}
// Check the `GetPriority()`
for (int i = 0; i < kNumTestMessages; i++)
{
VerifyOrQuit(msg[kLo][i]->GetPriority() == Message::kPriorityLow);
VerifyOrQuit(msg[kMd][i]->GetPriority() == Message::kPriorityNormal);
VerifyOrQuit(msg[kHi][i]->GetPriority() == Message::kPriorityHigh);
VerifyOrQuit(msg[kNw][i]->GetPriority() == Message::kPriorityNet);
}
// Verify case of an empty queue.
VerifyPriorityQueueContent(queue, 0);
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Messages with the same priority only.
for (uint8_t prio = 0; prio < kNumPriorities; prio++)
{
// Add and remove one message only
queue.Enqueue(*msg[prio][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio][0]);
queue.Dequeue(*msg[prio][0]);
VerifyPriorityQueueContent(queue, 0);
// Add three messages and then dequeue them in different orders.
for (uint8_t test = 0; test < 3; test++)
{
queue.Enqueue(*msg[prio][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio][0]);
queue.Enqueue(*msg[prio][1]);
VerifyPriorityQueueContent(queue, 2, msg[prio][0], msg[prio][1]);
queue.Enqueue(*msg[prio][2]);
VerifyPriorityQueueContent(queue, 3, msg[prio][0], msg[prio][1], msg[prio][2]);
switch (test)
{
case 0:
// Remove the messages in the same order added.
queue.Dequeue(*msg[prio][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio][1], msg[prio][2]);
queue.Dequeue(*msg[prio][1]);
VerifyPriorityQueueContent(queue, 1, msg[prio][2]);
queue.Dequeue(*msg[prio][2]);
break;
case 1:
// Remove the message in the reverse order added
queue.Dequeue(*msg[prio][2]);
VerifyPriorityQueueContent(queue, 2, msg[prio][0], msg[prio][1]);
queue.Dequeue(*msg[prio][1]);
VerifyPriorityQueueContent(queue, 1, msg[prio][0]);
queue.Dequeue(*msg[prio][0]);
break;
case 2:
// Remove the message in random order added.
queue.Dequeue(*msg[prio][1]);
VerifyPriorityQueueContent(queue, 2, msg[prio][0], msg[prio][2]);
queue.Dequeue(*msg[prio][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio][2]);
queue.Dequeue(*msg[prio][2]);
break;
}
VerifyPriorityQueueContent(queue, 0);
}
}
VerifyPriorityQueueContent(queue, 0);
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Messages with the two different priorities (`prio1` lower than `prio2`)
for (uint8_t prio1 = 0; prio1 < kNumPriorities - 1; prio1++)
{
for (uint8_t prio2 = prio1 + 1; prio2 < kNumPriorities; prio2++)
{
// Add one message with `prio1` and one with `prio2` and
// then remove them. Cover all possible combinations
// (order to add and remove).
for (uint8_t test = 0; test < 4; test++)
{
switch (test)
{
case 0:
case 1:
// Add lower priority first, then higher priority
queue.Enqueue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio1][0]);
queue.Enqueue(*msg[prio2][0]);
break;
case 2:
case 3:
// Add higher priority first, then lower priority
queue.Enqueue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][0]);
queue.Enqueue(*msg[prio1][0]);
break;
}
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][0]);
switch (test)
{
case 0:
case 2:
// Remove lower priority first, then higher priority.
queue.Dequeue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][0]);
queue.Dequeue(*msg[prio2][0]);
break;
case 1:
case 3:
// Remove higher priority first, then lower priority
queue.Dequeue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio1][0]);
queue.Dequeue(*msg[prio1][0]);
break;
}
VerifyPriorityQueueContent(queue, 0);
}
// Add two messages with `prio1` (lower) and one with
// `prio2` (higher) and then remove them. Cover all
// possible combinations to add and remove.
for (uint8_t test = 0; test < 6; test++)
{
switch (test)
{
case 0:
case 1:
// Add two lower priority messages first, then one higher priority
queue.Enqueue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio1][0]);
queue.Enqueue(*msg[prio1][1]);
VerifyPriorityQueueContent(queue, 2, msg[prio1][0], msg[prio1][1]);
queue.Enqueue(*msg[prio2][0]);
break;
case 2:
case 3:
// Add one higher priority first, then two lower priority messages.
queue.Enqueue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][0]);
queue.Enqueue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][0]);
queue.Enqueue(*msg[prio1][1]);
break;
case 4:
case 5:
// Add one lower priority first, then a higher priority, finally one lower priority.
queue.Enqueue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio1][0]);
queue.Enqueue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][0]);
queue.Enqueue(*msg[prio1][1]);
break;
}
VerifyPriorityQueueContent(queue, 3, msg[prio2][0], msg[prio1][0], msg[prio1][1]);
switch (test)
{
case 0:
queue.Dequeue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][1]);
queue.Dequeue(*msg[prio1][1]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][0]);
queue.Dequeue(*msg[prio2][0]);
break;
case 1:
queue.Dequeue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][1]);
queue.Dequeue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio1][1]);
queue.Dequeue(*msg[prio1][1]);
break;
case 2:
queue.Dequeue(*msg[prio1][1]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][0]);
queue.Dequeue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][0]);
queue.Dequeue(*msg[prio2][0]);
break;
case 3:
queue.Dequeue(*msg[prio1][1]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][0]);
queue.Dequeue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio1][0]);
queue.Dequeue(*msg[prio1][0]);
break;
case 4:
queue.Dequeue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio1][0], msg[prio1][1]);
queue.Dequeue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio1][1]);
queue.Dequeue(*msg[prio1][1]);
break;
case 5:
queue.Dequeue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio1][0], msg[prio1][1]);
queue.Dequeue(*msg[prio1][1]);
VerifyPriorityQueueContent(queue, 1, msg[prio1][0]);
queue.Dequeue(*msg[prio1][0]);
break;
}
}
VerifyPriorityQueueContent(queue, 0);
// Add two messages with `prio2` (higher) and one with
// `prio1` (lower) and then remove them. Cover all
// possible combinations to add and remove.
for (uint8_t test = 0; test < 6; test++)
{
switch (test)
{
case 0:
case 1:
// Add two higher priority messages first, then one lower priority
queue.Enqueue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][0]);
queue.Enqueue(*msg[prio2][1]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio2][1]);
queue.Enqueue(*msg[prio1][0]);
break;
case 2:
case 3:
// Add one lower priority first, then two higher priority messages.
queue.Enqueue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio1][0]);
queue.Enqueue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][0]);
queue.Enqueue(*msg[prio2][1]);
break;
case 4:
case 5:
// Add one higher priority first, then a lower priority, finally one higher priority.
queue.Enqueue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][0]);
queue.Enqueue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][0]);
queue.Enqueue(*msg[prio2][1]);
break;
}
VerifyPriorityQueueContent(queue, 3, msg[prio2][0], msg[prio2][1], msg[prio1][0]);
switch (test)
{
case 0:
queue.Dequeue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][1], msg[prio1][0]);
queue.Dequeue(*msg[prio2][1]);
VerifyPriorityQueueContent(queue, 1, msg[prio1][0]);
queue.Dequeue(*msg[prio1][0]);
break;
case 1:
queue.Dequeue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][1], msg[prio1][0]);
queue.Dequeue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][1]);
queue.Dequeue(*msg[prio2][1]);
break;
case 2:
queue.Dequeue(*msg[prio2][1]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][0]);
queue.Dequeue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio1][0]);
queue.Dequeue(*msg[prio1][0]);
break;
case 3:
queue.Dequeue(*msg[prio2][1]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][0]);
queue.Dequeue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][0]);
queue.Dequeue(*msg[prio2][0]);
break;
case 4:
queue.Dequeue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio2][1]);
queue.Dequeue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][1]);
queue.Dequeue(*msg[prio2][1]);
break;
case 5:
queue.Dequeue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio2][1]);
queue.Dequeue(*msg[prio2][1]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][0]);
queue.Dequeue(*msg[prio2][0]);
break;
}
VerifyPriorityQueueContent(queue, 0);
}
}
}
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Messages with the three different priorities (prio1 < prio2 < prio3)
for (uint8_t prio1 = 0; prio1 < kNumPriorities - 2; prio1++)
{
for (uint8_t prio2 = prio1 + 1; prio2 < kNumPriorities - 1; prio2++)
{
for (uint8_t prio3 = prio2 + 1; prio3 < kNumPriorities; prio3++)
{
for (uint8_t test = 0; test < 6; test++)
{
switch (test)
{
case 0:
queue.Enqueue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio1][0]);
queue.Enqueue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][0]);
queue.Enqueue(*msg[prio3][0]);
break;
case 1:
queue.Enqueue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio1][0]);
queue.Enqueue(*msg[prio3][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio3][0], msg[prio1][0]);
queue.Enqueue(*msg[prio2][0]);
break;
case 2:
queue.Enqueue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][0]);
queue.Enqueue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][0]);
queue.Enqueue(*msg[prio3][0]);
break;
case 3:
queue.Enqueue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][0]);
queue.Enqueue(*msg[prio3][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio3][0], msg[prio2][0]);
queue.Enqueue(*msg[prio1][0]);
break;
case 4:
queue.Enqueue(*msg[prio3][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio3][0]);
queue.Enqueue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio3][0], msg[prio1][0]);
queue.Enqueue(*msg[prio2][0]);
break;
case 5:
queue.Enqueue(*msg[prio3][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio3][0]);
queue.Enqueue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio3][0], msg[prio2][0]);
queue.Enqueue(*msg[prio1][0]);
break;
}
VerifyPriorityQueueContent(queue, 3, msg[prio3][0], msg[prio2][0], msg[prio1][0]);
switch (test)
{
case 0:
case 1:
case 2:
queue.Dequeue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio3][0], msg[prio2][0]);
queue.Dequeue(*msg[prio2][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio3][0]);
queue.Dequeue(*msg[prio3][0]);
break;
case 3:
case 4:
case 5:
queue.Dequeue(*msg[prio3][0]);
VerifyPriorityQueueContent(queue, 2, msg[prio2][0], msg[prio1][0]);
queue.Dequeue(*msg[prio1][0]);
VerifyPriorityQueueContent(queue, 1, msg[prio2][0]);
queue.Dequeue(*msg[prio2][0]);
break;
}
VerifyPriorityQueueContent(queue, 0);
}
}
}
}
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Add msgs in different orders and check the content of queue.
queue.Enqueue(*msg[kHi][0]);
VerifyPriorityQueueContent(queue, 1, msg[kHi][0]);
queue.Enqueue(*msg[kHi][1]);
VerifyPriorityQueueContent(queue, 2, msg[kHi][0], msg[kHi][1]);
queue.Enqueue(*msg[kNw][0]);
VerifyPriorityQueueContent(queue, 3, msg[kNw][0], msg[kHi][0], msg[kHi][1]);
queue.Enqueue(*msg[kNw][1]);
VerifyPriorityQueueContent(queue, 4, msg[kNw][0], msg[kNw][1], msg[kHi][0], msg[kHi][1]);
queue.Enqueue(*msg[kHi][2]);
VerifyPriorityQueueContent(queue, 5, msg[kNw][0], msg[kNw][1], msg[kHi][0], msg[kHi][1], msg[kHi][2]);
queue.Enqueue(*msg[kLo][0]);
VerifyPriorityQueueContent(queue, 6, msg[kNw][0], msg[kNw][1], msg[kHi][0], msg[kHi][1], msg[kHi][2], msg[kLo][0]);
queue.Enqueue(*msg[kMd][0]);
VerifyPriorityQueueContent(queue, 7, msg[kNw][0], msg[kNw][1], msg[kHi][0], msg[kHi][1], msg[kHi][2], msg[kMd][0],
msg[kLo][0]);
queue.Enqueue(*msg[kHi][3]);
VerifyPriorityQueueContent(queue, 8, msg[kNw][0], msg[kNw][1], msg[kHi][0], msg[kHi][1], msg[kHi][2], msg[kHi][3],
msg[kMd][0], msg[kLo][0]);
// Remove messages in different order and check the content of queue in each step.
queue.Dequeue(*msg[kNw][0]);
VerifyPriorityQueueContent(queue, 7, msg[kNw][1], msg[kHi][0], msg[kHi][1], msg[kHi][2], msg[kHi][3], msg[kMd][0],
msg[kLo][0]);
queue.Dequeue(*msg[kHi][2]);
VerifyPriorityQueueContent(queue, 6, msg[kNw][1], msg[kHi][0], msg[kHi][1], msg[kHi][3], msg[kMd][0], msg[kLo][0]);
queue.Dequeue(*msg[kMd][0]);
VerifyPriorityQueueContent(queue, 5, msg[kNw][1], msg[kHi][0], msg[kHi][1], msg[kHi][3], msg[kLo][0]);
queue.Dequeue(*msg[kHi][1]);
VerifyPriorityQueueContent(queue, 4, msg[kNw][1], msg[kHi][0], msg[kHi][3], msg[kLo][0]);
queue.Dequeue(*msg[kLo][0]);
VerifyPriorityQueueContent(queue, 3, msg[kNw][1], msg[kHi][0], msg[kHi][3]);
queue.Dequeue(*msg[kNw][1]);
VerifyPriorityQueueContent(queue, 2, msg[kHi][0], msg[kHi][3]);
queue.Dequeue(*msg[kHi][0]);
VerifyPriorityQueueContent(queue, 1, msg[kHi][3]);
queue.Dequeue(*msg[kHi][3]);
VerifyPriorityQueueContent(queue, 0);
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Validate that priority of an already queued message in a priority queue cannot change
queue.Enqueue(*msg[kMd][0]);
VerifyPriorityQueueContent(queue, 1, msg[kMd][0]);
queue.Enqueue(*msg[kHi][0]);
VerifyPriorityQueueContent(queue, 2, msg[kHi][0], msg[kMd][0]);
queue.Enqueue(*msg[kLo][0]);
VerifyPriorityQueueContent(queue, 3, msg[kHi][0], msg[kMd][0], msg[kLo][0]);
VerifyOrQuit(msg[kMd][0]->SetPriority(Message::kPriorityNet) == kErrorInvalidState);
VerifyOrQuit(msg[kLo][0]->SetPriority(Message::kPriorityLow) == kErrorInvalidState);
VerifyOrQuit(msg[kLo][0]->SetPriority(Message::kPriorityNormal) == kErrorInvalidState);
VerifyOrQuit(msg[kHi][0]->SetPriority(Message::kPriorityNormal) == kErrorInvalidState);
VerifyPriorityQueueContent(queue, 3, msg[kHi][0], msg[kMd][0], msg[kLo][0]);
// Remove messages from the queue
queue.Dequeue(*msg[kHi][0]);
VerifyPriorityQueueContent(queue, 2, msg[kMd][0], msg[kLo][0]);
queue.Dequeue(*msg[kLo][0]);
VerifyPriorityQueueContent(queue, 1, msg[kMd][0]);
queue.Dequeue(*msg[kMd][0]);
VerifyPriorityQueueContent(queue, 0);
for (Message *message : msg[kMd])
{
SuccessOrQuit(message->SetPriority(Message::kPriorityNormal));
}
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Range-based `for` and dequeue during iteration
for (uint16_t removeIndex = 0; removeIndex < 4; removeIndex++)
{
uint16_t index = 0;
queue.Enqueue(*msg[kMd][0]);
queue.Enqueue(*msg[kMd][1]);
queue.Enqueue(*msg[kMd][2]);
queue.Enqueue(*msg[kMd][3]);
VerifyPriorityQueueContent(queue, 4, msg[kMd][0], msg[kMd][1], msg[kMd][2], msg[kMd][3]);
// While iterating over the queue remove the entry at `removeIndex`
for (Message &message : queue)
{
if (index == removeIndex)
{
queue.Dequeue(message);
}
VerifyOrQuit(&message == msg[kMd][index++]);
}
index = 0;
// Iterate over the queue and remove all
for (Message &message : queue)
{
if (index == removeIndex)
{
index++;
}
VerifyOrQuit(&message == msg[kMd][index++]);
queue.Dequeue(message);
}
VerifyPriorityQueueContent(queue, 0);
}
testFreeInstance(instance);
}
// NOLINTEND(modernize-loop-convert)
} // namespace ot
int main(void)
{
ot::TestPriorityQueue();
printf("All tests passed\n");
return 0;
}