Let findSupportedAbi and hasRenderscriptBitcode scan only relevant files

for better performance. Without the optimization, these two functions
may check more than 100k file names in the pre-installed APK files,
which can take a few seconds to finish even on a recent device.

Bug: 21957428
Change-Id: I315fd3c6d5aa1076b993752525de449a9933de12

1 files changed, 10 insertions, 2 deletions

diff --git a/libs/androidfw/ZipFileRO.cpp b/libs/androidfw/ZipFileRO.cpp
index 6f927b4..a6f6d8c 100644
--- a/libs/androidfw/ZipFileRO.cpp
+++ b/libs/androidfw/ZipFileRO.cpp
@@ -126,10 +126,18 @@ bool ZipFileRO::getEntryInfo(ZipEntryRO entry, uint16_t* pMethod,
     return true;
 }
 
-bool ZipFileRO::startIteration(void** cookie)
+bool ZipFileRO::startIteration(void** cookie) {
+  return startIteration(cookie, NULL, NULL);
+}
+
+bool ZipFileRO::startIteration(void** cookie, const char* prefix, const char* suffix)
 {
     _ZipEntryRO* ze = new _ZipEntryRO;
-    int32_t error = StartIteration(mHandle, &(ze->cookie), NULL /* prefix */);
+    ZipEntryName pe(prefix ? prefix : "");
+    ZipEntryName se(suffix ? suffix : "");
+    int32_t error = StartIteration(mHandle, &(ze->cookie),
+                                   prefix ? &pe : NULL,
+                                   suffix ? &se : NULL);
     if (error) {
         ALOGW("Could not start iteration over %s: %s", mFileName, ErrorCodeString(error));
         delete ze;