commit f3124d8fab2377d6b5ec2c7cbc775e2ab20df3ef
author Fyodor Kupolov <fkupolov@google.com> Wed Sep 07 13:07:45 2016 -0700
committer Fyodor Kupolov <fkupolov@google.com> Wed Jan 25 12:16:06 2017 -0800
tree ba16b3f86db1f20b2ba063c58a3ad262f507faf0
parent 1bb1f85d2b6ed992efe3c7fd2ff1e47388e8d090

Remove from preloads/file_cache when clearing the cache

Test: pm trim-caches 50G internal
Bug: 31008665
Change-Id: If74f4d3c2d838ecb924aba84ad76293af34089bc

cmds/installd/InstalldNativeService.cpp

diff --git a/cmds/installd/InstalldNativeService.cpp b/cmds/installd/InstalldNativeService.cpp
index ede31fc..5833901 100644
--- a/cmds/installd/InstalldNativeService.cpp
+++ b/cmds/installd/InstalldNativeService.cpp
@@ -961,6 +961,10 @@
             add_cache_files(cache,
                     StringPrintf("%s/Android/data", create_data_media_path(uuid_, user).c_str()));
         }
+        // Add files from /data/preloads/file_cache
+        if (uuid == nullptr) {
+            add_preloads_file_cache(cache, uuid_);
+        }
         ATRACE_END();
 
         ATRACE_BEGIN("clear");

cmds/installd/utils.cpp

diff --git a/cmds/installd/utils.cpp b/cmds/installd/utils.cpp
index 0b1cd7e..32c789d 100644
--- a/cmds/installd/utils.cpp
+++ b/cmds/installd/utils.cpp
@@ -1003,6 +1003,21 @@
     closedir(d);
 }
 
+void add_preloads_file_cache(cache_t* cache, const char* volume_uuid) {
+    char dirname[PATH_MAX];
+    DIR* subdir;
+    auto cache_path = StringPrintf("%s/preloads/file_cache", create_data_path(volume_uuid).c_str());
+    strcpy(dirname, cache_path.c_str());
+    CACHE_NOISY(ALOGI("add_preloads_file_cache: dirname=%s\n", dirname));
+    subdir = opendir(dirname);
+    if (subdir != NULL) {
+        size_t dirnameLen = strlen(dirname);
+        _add_cache_files(cache, NULL, dirname, subdir, dirname, dirname + dirnameLen,
+                PATH_MAX - dirnameLen);
+        closedir(subdir);
+    }
+}
+
 static char *create_dir_path(char path[PATH_MAX], cache_dir_t* dir)
 {
     char *pos = path;

cmds/installd/utils.h

diff --git a/cmds/installd/utils.h b/cmds/installd/utils.h
index 5e396c7..9195cb8 100644
--- a/cmds/installd/utils.h
+++ b/cmds/installd/utils.h
@@ -143,6 +143,8 @@
 
 void add_cache_files(cache_t* cache, const std::string& data_path);
 
+void add_preloads_file_cache(cache_t* cache, const char* volume_uuid);
+
 void clear_cache_files(const std::string& data_path, cache_t* cache, int64_t free_size);
 
 void finish_cache_collection(cache_t* cache);