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Commit 61a0a35d authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

Compress .so files for PackageManager to reclaim the space 



Let's set compression bit to compress .so files in first place for PM.
If the underlying filesystem like f2fs supports per-file compression, we can
give the compressed space back to user.

Bug: 188859114
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@google.com>
Change-Id: I6f261946c0a076ec50ec41bfe031f4438fed4db8
parent 8aebd244

core/jni/com_android_internal_content_NativeLibraryHelper.cpp

+11 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ 
#include <inttypes.h>

#include <sys/stat.h>

#include <sys/types.h>

#include <linux/fs.h>



#include <memory>
@@ -253,6 +254,16 @@ copyFileIfChanged(JNIEnv *env, void* arg, ZipFileRO* zipFile, ZipEntryRO zipEntr 
        return INSTALL_FAILED_CONTAINER_ERROR;

    }



    // If a filesystem like f2fs supports per-file compression, set the compression bit before data

    // writes

    unsigned int flags;

    if (ioctl(fd, FS_IOC_GETFLAGS, &flags) == -1) {

        ALOGE("Failed to call FS_IOC_GETFLAGS on %s: %s\n", localTmpFileName, strerror(errno));

    } else if ((flags & FS_COMPR_FL) == 0) {

        flags |= FS_COMPR_FL;

        ioctl(fd, FS_IOC_SETFLAGS, &flags);

    }



    if (!zipFile->uncompressEntry(zipEntry, fd)) {

        ALOGE("Failed uncompressing %s to %s\n", fileName, localTmpFileName);

        close(fd);