sm8450-common: Import gps from LA.VENDOR.1.0.r1-12800-WAIPIO.0

Change-Id: Ia76265a8c3326f2b5f9f260ce98807276af80ee3

gps/utils/LocThread.cpp

@@ -0,0 +1,111 @@
+/* Copyright (c) 2015, 2020 The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of The Linux Foundation, 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 "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * 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 <sys/prctl.h>
+#include <LocThread.h>
+#include <string.h>
+#include <string>
+#include <thread>
+#include <loc_pla.h>
+
+using std::weak_ptr;
+using std::shared_ptr;
+using std::thread;
+using std::string;
+
+namespace loc_util {
+
+class LocThreadDelegate {
+    static const char defaultThreadName[];
+    weak_ptr<LocRunnable> mRunnable;
+    thread mThread;
+    LocThreadDelegate(const string tName, shared_ptr<LocRunnable> r);
+public:
+    ~LocThreadDelegate() {
+        shared_ptr<LocRunnable> runnable = mRunnable.lock();
+        if (nullptr != runnable) {
+            runnable->interrupt();
+        }
+    }
+    inline static LocThreadDelegate* create(const char* tName, shared_ptr<LocRunnable> runnable);
+};
+
+const char LocThreadDelegate::defaultThreadName[] = "LocThread";
+
+LocThreadDelegate* LocThreadDelegate::create(const char* tName, shared_ptr<LocRunnable> runnable) {
+    LocThreadDelegate* threadDelegate = nullptr;
+
+    if (nullptr != runnable) {
+        if (!tName) {
+            tName = defaultThreadName;
+        }
+
+        char lname[16];
+        auto nameSize = strlen(tName) + 1;
+        int len = std::min(sizeof(lname), nameSize) - 1;
+        memcpy(lname, tName, len);
+        lname[len] = 0;
+
+        threadDelegate = new LocThreadDelegate(lname, runnable);
+    }
+
+    return threadDelegate;
+}
+
+LocThreadDelegate::LocThreadDelegate(const string tName, shared_ptr<LocRunnable> runnable) :
+        mRunnable(runnable),
+        mThread([tName, runnable] {
+                prctl(PR_SET_NAME, tName.c_str(), 0, 0, 0);
+                runnable->prerun();
+                while (runnable->run());
+                runnable->postrun();
+            }) {
+
+    mThread.detach();
+}
+
+
+
+bool LocThread::start(const char* tName, shared_ptr<LocRunnable> runnable) {
+    bool success = false;
+    if (!mThread) {
+        mThread = LocThreadDelegate::create(tName, runnable);
+        // true only if thread is created successfully
+        success = (NULL != mThread);
+    }
+    return success;
+}
+
+void LocThread::stop() {
+    if (nullptr != mThread) {
+        delete mThread;
+        mThread = nullptr;
+    }
+}
+
+} // loc_util