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20 changes: 14 additions & 6 deletions src/simple.cc
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
// Copyright 2020-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
// Copyright 2020-2025, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
Expand Down Expand Up @@ -876,6 +876,10 @@ main(int argc, char** argv)
FAIL_IF_ERR(
TRITONSERVER_InferenceResponseDelete(completed_response),
"deleting inference response");

// We need to make sure that the previous request was released before
// reusing it.
request_release_future.get();
}

// The TRITONSERVER_InferenceRequest object can be reused for
Expand Down Expand Up @@ -906,10 +910,6 @@ main(int argc, char** argv)
InferResponseComplete, reinterpret_cast<void*>(p)),
"setting response callback");

// We need to make sure that the previous request was released before
// reusing it.
request_release_future.get();

// Register a new promise for the request callback barrier.
barrier = std::make_unique<std::promise<void>>();
request_release_future = barrier->get_future();
Expand All @@ -936,6 +936,10 @@ main(int argc, char** argv)
FAIL_IF_ERR(
TRITONSERVER_InferenceResponseDelete(completed_response),
"deleting inference response");

// We need to make sure that the previous request was released before
// reusing it.
request_release_future.get();
}

// There are other TRITONSERVER_InferenceRequest APIs that allow
Expand Down Expand Up @@ -967,7 +971,7 @@ main(int argc, char** argv)

// Register a new promise for the request callback barrier.
barrier = std::make_unique<std::promise<void>>();
request_release_future.get();
request_release_future = barrier->get_future();

FAIL_IF_ERR(
TRITONSERVER_InferenceRequestSetReleaseCallback(
Expand All @@ -993,6 +997,10 @@ main(int argc, char** argv)
FAIL_IF_ERR(
TRITONSERVER_InferenceResponseDelete(completed_response),
"deleting inference response");

// Make sure the request is released before deleting it. If not, release
// callback will segfault after barrier is destructed.
request_release_future.get();
}

FAIL_IF_ERR(
Expand Down
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