Merge pull request #312 from ruslo/pr.api21

Fix build for Android API < 21

Merge pull request #312 from ruslo/pr.api21
Fix build for Android API < 21
1227cf4d · Sergiu Deitsch · GitHub · 0f83e53c · d064ab8d · 1227cf4d
Unverified Commit 1227cf4d authored Oct 31, 2019 by Sergiu Deitsch Committed by GitHub Oct 31, 2019
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logging.cc src/logging.cc +5 -0

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--- a/src/logging.cc
+++ b/src/logging.cc
@@ -1124,8 +1124,13 @@ void LogFileObject::Write(bool force_flush,
      uint32 this_drop_length = total_drop_length - dropped_mem_length_;
      if (this_drop_length >= (2 << 20)) {
        // Only advise when >= 2MiB to drop
+# if defined(__ANDROID__) && defined(__ANDROID_API__) && (__ANDROID_API__ < 21)
+        // 'posix_fadvise' introduced in API 21:
+        // * https://android.googlesource.com/platform/bionic/+/6880f936173081297be0dc12f687d341b86a4cfa/libc/libc.map.txt#732
+# else
        posix_fadvise(fileno(file_), dropped_mem_length_, this_drop_length,
                      POSIX_FADV_DONTNEED);
+# endif
        dropped_mem_length_ = total_drop_length;
      }
    }