Reapply "Guard new APIs with __builtin_available"

This reverts commit 027650fb9f4a54a1848f062e9944cd845651208d.

Ignore-AOSP-First: this is for 24q1-release

Bug: 317676192
Test: manual check (wifi hal service should work with U GSI)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:e40a10779c74290c504a38799f81eb6e0a06610d)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:fde6b58b4f9efb8998364f2bcfa51cc1c1e48834)
Merged-In: I0211eb1f7f8c74a43143cbed7c32c065eabf39ed
Change-Id: I0211eb1f7f8c74a43143cbed7c32c065eabf39ed

1 files changed, 36 insertions, 18 deletions

diff --git a/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h b/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h
index f178027b35..a0e4f7b63b 100644
--- a/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h
+++ b/libs/binder/ndk/include_cpp/android/persistable_bundle_aidl.h
@@ -31,7 +31,11 @@ namespace aidl::android::os {
  */
 class PersistableBundle {
    public:
-    PersistableBundle() noexcept : mPBundle(APersistableBundle_new()) {}
+    PersistableBundle() noexcept {
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            mPBundle = APersistableBundle_new();
+        }
+    }
     // takes ownership of the APersistableBundle*
     PersistableBundle(APersistableBundle* _Nonnull bundle) noexcept : mPBundle(bundle) {}
     // takes ownership of the APersistableBundle*
@@ -327,20 +331,32 @@ class PersistableBundle {
     }
 
     bool getBooleanVector(const std::string& key, std::vector<bool>* _Nonnull vec) {
-        return getVecInternal<bool>(&APersistableBundle_getBooleanVector, mPBundle, key.c_str(),
-                                    vec);
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getVecInternal<bool>(&APersistableBundle_getBooleanVector, mPBundle, key.c_str(),
+                                        vec);
+        }
+        return false;
     }
     bool getIntVector(const std::string& key, std::vector<int32_t>* _Nonnull vec) {
-        return getVecInternal<int32_t>(&APersistableBundle_getIntVector, mPBundle, key.c_str(),
-                                       vec);
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getVecInternal<int32_t>(&APersistableBundle_getIntVector, mPBundle, key.c_str(),
+                                           vec);
+        }
+        return false;
     }
     bool getLongVector(const std::string& key, std::vector<int64_t>* _Nonnull vec) {
-        return getVecInternal<int64_t>(&APersistableBundle_getLongVector, mPBundle, key.c_str(),
-                                       vec);
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getVecInternal<int64_t>(&APersistableBundle_getLongVector, mPBundle, key.c_str(),
+                                           vec);
+        }
+        return false;
     }
     bool getDoubleVector(const std::string& key, std::vector<double>* _Nonnull vec) {
-        return getVecInternal<double>(&APersistableBundle_getDoubleVector, mPBundle, key.c_str(),
-                                      vec);
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            return getVecInternal<double>(&APersistableBundle_getDoubleVector, mPBundle,
+                                          key.c_str(), vec);
+        }
+        return false;
     }
 
     // Takes ownership of and frees the char** and its elements.
@@ -361,15 +377,17 @@ class PersistableBundle {
     }
 
     bool getStringVector(const std::string& key, std::vector<std::string>* _Nonnull vec) {
-        int32_t bytes = APersistableBundle_getStringVector(mPBundle, key.c_str(), nullptr, 0,
-                                                           &stringAllocator, nullptr);
-        if (bytes > 0) {
-            char** strings = (char**)malloc(bytes);
-            if (strings) {
-                bytes = APersistableBundle_getStringVector(mPBundle, key.c_str(), strings, bytes,
-                                                           &stringAllocator, nullptr);
-                *vec = moveStringsInternal<std::vector<std::string>>(strings, bytes);
-                return true;
+        if (__builtin_available(android __ANDROID_API_V__, *)) {
+            int32_t bytes = APersistableBundle_getStringVector(mPBundle, key.c_str(), nullptr, 0,
+                                                               &stringAllocator, nullptr);
+            if (bytes > 0) {
+                char** strings = (char**)malloc(bytes);
+                if (strings) {
+                    bytes = APersistableBundle_getStringVector(mPBundle, key.c_str(), strings,
+                                                               bytes, &stringAllocator, nullptr);
+                    *vec = moveStringsInternal<std::vector<std::string>>(strings, bytes);
+                    return true;
+                }
             }
         }
         return false;