commit 1a796bca57ef45d559e70dc05ad2df5cb77b8f64
author Tom Cherry <tomcherry@google.com> Wed May 13 09:28:37 2020 -0700
committer Tom Cherry <tomcherry@google.com> Fri Jun 12 14:35:30 2020 -0700
tree 6565260e0d1f5372178bf15482085726ec2f800b
parent 8d3265539b0c1781fd15dc91a934a8a288cee302

logd: add a SerializedLogBuffer suitable for compression

Initial commit for a SerializedLogBuffer.  The intention here is for
the serialized data to be compressed (currently using zlib) to allow
for substantially longer logs in the same memory footprint.

Test: unit tests
Change-Id: I2528e4e1ff1cf3bc91130173a107f371f04d911a

logd/Android.bp

diff --git a/logd/Android.bp b/logd/Android.bp
index 1f6ab34..e0a1168 100644
--- a/logd/Android.bp
+++ b/logd/Android.bp
@@ -31,7 +31,11 @@
 cc_defaults {
     name: "logd_defaults",
 
-    shared_libs: ["libbase"],
+    shared_libs: [
+        "libbase",
+        "libz",
+    ],
+    static_libs: ["libzstd"],
     cflags: [
         "-Wextra",
         "-Wthread-safety",
@@ -40,6 +44,7 @@
     lto: {
         thin: true,
     },
+    cpp_std: "experimental",
 }
 
 cc_library_static {
@@ -48,12 +53,16 @@
     host_supported: true,
     srcs: [
         "ChattyLogBuffer.cpp",
+        "CompressionEngine.cpp",
         "LogReaderList.cpp",
         "LogReaderThread.cpp",
         "LogBufferElement.cpp",
         "LogStatistics.cpp",
         "LogWhiteBlackList.cpp",
         "LogTags.cpp",
+        "SerializedFlushToState.cpp",
+        "SerializedLogBuffer.cpp",
+        "SerializedLogChunk.cpp",
         "SimpleLogBuffer.cpp",
     ],
     logtags: ["event.logtags"],
@@ -132,6 +141,8 @@
         "ChattyLogBufferTest.cpp",
         "logd_test.cpp",
         "LogBufferTest.cpp",
+        "SerializedLogChunkTest.cpp",
+        "SerializedFlushToStateTest.cpp",
     ],
 
     static_libs: [
@@ -140,6 +151,8 @@
         "liblog",
         "liblogd",
         "libselinux",
+        "libz",
+        "libzstd",
     ],
 }