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Commit 08d2d0b1 authored by luca020400's avatar luca020400 Committed by Luca Stefani
Browse files

bootanimation: Switch to readahead 

Change-Id: I287132e311e96c0437df67c76b86bb47b8f8380e
parent eb9f3d34

cmds/bootanimation/BootAnimation.cpp

+9 −13
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ 
#include <time.h>

#include <pthread.h>

#include <sys/select.h>

#include <sys/syscall.h>



#include <cutils/properties.h>
@@ -438,19 +439,14 @@ status_t BootAnimation::readyToRun() { 
        return NO_ERROR;



    if (fd != NULL) {

        // We could use readahead..

        // ... if bionic supported it :(

        //readahead(fd, 0, INT_MAX);

        void *crappyBuffer = malloc(2*1024*1024);

        if (crappyBuffer != NULL) {

            // Read all the zip

            while (!feof(fd))

                fread(crappyBuffer, 1024, 2*1024, fd);



            free(crappyBuffer);

        } else {

            ALOGW("Unable to allocate memory to preload the animation");

        }

        // Since including fcntl.h doesn't give us the wrapper, use the syscall.

        // 32 bits takes LO/HI offset (we don't care about endianness of 0).

#if defined(__aarch64__) || defined(__x86_64__)

        if (syscall(__NR_readahead, fd, 0, INT_MAX))

#else

        if (syscall(__NR_readahead, fd, 0, 0, INT_MAX))

#endif

            ALOGW("Unable to cache the animation");

        fclose(fd);

    }

#endif