From 40d886e7d3facda35558448f408fa99ab61a5963 Mon Sep 17 00:00:00 2001
From: Kristofer Jonsson <kristofer.jonsson@arm.com>
Date: Wed, 15 Dec 2021 11:16:26 +0100
Subject: Remove unused functions

Change-Id: Idffa9b21385451883795412076ea48218d6c74ba
---
 .../include/inference_process.hpp                  | 10 +---
 .../inference_process/src/inference_process.cpp    | 67 +---------------------
 2 files changed, 3 insertions(+), 74 deletions(-)

diff --git a/applications/inference_process/include/inference_process.hpp b/applications/inference_process/include/inference_process.hpp
index 1679e19..b8b2775 100644
--- a/applications/inference_process/include/inference_process.hpp
+++ b/applications/inference_process/include/inference_process.hpp
@@ -63,20 +63,12 @@ struct InferenceJob {
 
 class InferenceProcess {
 public:
-    InferenceProcess(uint8_t *_tensorArena, size_t _tensorArenaSize) :
-        lock(0), tensorArena(_tensorArena), tensorArenaSize(_tensorArenaSize) {}
+    InferenceProcess(uint8_t *_tensorArena, size_t _tensorArenaSize);
 
-    bool push(const InferenceJob &job);
     bool runJob(InferenceJob &job);
-    bool run(bool exitOnEmpty = true);
 
 private:
-    volatile uint32_t lock;
     uint8_t *tensorArena;
     const size_t tensorArenaSize;
-    std::queue<InferenceJob> inferenceJobQueue;
-
-    void getLock();
-    void freeLock();
 };
 } // namespace InferenceProcess
diff --git a/applications/inference_process/src/inference_process.cpp b/applications/inference_process/src/inference_process.cpp
index 94c62d3..499cdd3 100644
--- a/applications/inference_process/src/inference_process.cpp
+++ b/applications/inference_process/src/inference_process.cpp
@@ -192,40 +192,8 @@ void InferenceJob::clean() {
     }
 }
 
-// NOTE: Adding code for get_lock & free_lock with some corrections from
-// http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dai0321a/BIHEJCHB.html
-// TODO: check correctness?
-void InferenceProcess::getLock() {
-    int status = 0;
-
-    do {
-        // Wait until lock_var is free
-        while (__LDREXW(&lock) != 0)
-            ;
-
-        // Try to set lock_var
-        status = __STREXW(1, &lock);
-    } while (status != 0);
-
-    // Do not start any other memory access until memory barrier is completed
-    __DMB();
-}
-
-// TODO: check correctness?
-void InferenceProcess::freeLock() {
-    // Ensure memory operations completed before releasing lock
-    __DMB();
-
-    lock = 0;
-}
-
-bool InferenceProcess::push(const InferenceJob &job) {
-    getLock();
-    inferenceJobQueue.push(job);
-    freeLock();
-
-    return true;
-}
+InferenceProcess::InferenceProcess(uint8_t *_tensorArena, size_t _tensorArenaSize) :
+    tensorArena(_tensorArena), tensorArenaSize(_tensorArenaSize) {}
 
 bool InferenceProcess::runJob(InferenceJob &job) {
     LOG_INFO("Running inference job: %s", job.name.c_str());
@@ -382,37 +350,6 @@ bool InferenceProcess::runJob(InferenceJob &job) {
     LOG_INFO("Finished running job: %s", job.name.c_str());
 
     return false;
-} // namespace InferenceProcess
-
-bool InferenceProcess::run(bool exitOnEmpty) {
-    bool anyJobFailed = false;
-
-    while (true) {
-        getLock();
-        bool empty = inferenceJobQueue.empty();
-        freeLock();
-
-        if (empty) {
-            if (exitOnEmpty) {
-                LOG_INFO("Exit from InferenceProcess::run() due to empty job queue");
-                break;
-            }
-
-            continue;
-        }
-
-        getLock();
-        InferenceJob job = inferenceJobQueue.front();
-        inferenceJobQueue.pop();
-        freeLock();
-
-        if (runJob(job)) {
-            anyJobFailed = true;
-            continue;
-        }
-    }
-
-    return anyJobFailed;
 }
 
 } // namespace InferenceProcess
-- 
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