Offer to delete code cache directories.

Bug: 16187224
Change-Id: Ia860b051a34ffdfb4f6e0ea19f90cb73509c4eee

cmds/installd/commands.c

@@ -310,10 +310,21 @@ int delete_cache(const char *pkgname, userid_t userid)
     if (create_pkg_path(cachedir, pkgname, CACHE_DIR_POSTFIX, userid))
         return -1;
 
-        /* delete contents, not the directory, no exceptions */
+    /* delete contents, not the directory, no exceptions */
     return delete_dir_contents(cachedir, 0, NULL);
 }
 
+int delete_code_cache(const char *pkgname, userid_t userid)
+{
+    char codecachedir[PKG_PATH_MAX];
+
+    if (create_pkg_path(codecachedir, pkgname, CODE_CACHE_DIR_POSTFIX, userid))
+        return -1;
+
+    /* delete contents, not the directory, no exceptions */
+    return delete_dir_contents(codecachedir, 0, NULL);
+}
+
 /* Try to ensure free_size bytes of storage are available.
  * Returns 0 on success.
  * This is rather simple-minded because doing a full LRU would

cmds/installd/installd.c

@@ -77,6 +77,11 @@ static int do_rm_cache(char **arg, char reply[REPLY_MAX])
     return delete_cache(arg[0], atoi(arg[1])); /* pkgname, userid */
 }
 
+static int do_rm_code_cache(char **arg, char reply[REPLY_MAX])
+{
+    return delete_code_cache(arg[0], atoi(arg[1])); /* pkgname, userid */
+}
+
 static int do_get_size(char **arg, char reply[REPLY_MAX])
 {
     int64_t codesize = 0;
@@ -163,6 +168,7 @@ struct cmdinfo cmds[] = {
     { "fixuid",               3, do_fixuid },
     { "freecache",            1, do_free_cache },
     { "rmcache",              2, do_rm_cache },
+    { "rmcodecache",          2, do_rm_code_cache },
     { "getsize",              7, do_get_size },
     { "rmuserdata",           2, do_rm_user_data },
     { "movefiles",            0, do_movefiles },

cmds/installd/installd.h

@@ -59,6 +59,7 @@
 #define PKG_LIB_POSTFIX        "/lib"
 
 #define CACHE_DIR_POSTFIX      "/cache"
+#define CODE_CACHE_DIR_POSTFIX "/code_cache"
 
 #define APP_SUBDIR             "app/" // sub-directory under ANDROID_DATA
 
@@ -207,6 +208,7 @@ int make_user_data(const char *pkgname, uid_t uid, userid_t userid, const char*
 int make_user_config(userid_t userid);
 int delete_user(userid_t userid);
 int delete_cache(const char *pkgname, userid_t userid);
+int delete_code_cache(const char *pkgname, userid_t userid);
 int move_dex(const char *src, const char *dst, const char *instruction_set);
 int rm_dex(const char *path, const char *instruction_set);
 int protect(char *pkgname, gid_t gid);