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2014/10/16 ¤W¤È 08:24:16
android Programming Glossary: sizeofRotating a bitmap using JNI & NDK http://stackoverflow.com/questions/14398670/rotating-a-bitmap-using-jni-ndk pixelsCount info.height info.width memcpy tempPixels src sizeof uint32_t pixelsCount AndroidBitmap_unlockPixels env bitmap recycle..
How to cache bitmaps into native memory http://stackoverflow.com/questions/17900732/how-to-cache-bitmaps-into-native-memory memcpy newBitmapPixels jniBitmap _storedBitmapPixels sizeof uint32_t pixelsCount AndroidBitmap_unlockPixels env newBitmap.. bitmapInfo.width memcpy storedBitmapPixels src sizeof uint32_t pixelsCount AndroidBitmap_unlockPixels env bitmap JniBitmap..
JNI bitmap operations , for helping to avoid OOM when using large images [closed] http://stackoverflow.com/questions/18250951/jni-bitmap-operations-for-helping-to-avoid-oom-when-using-large-images for int y top y bottom y memcpy whereToPut whereToGet sizeof uint32_t newWidth whereToGet oldWidth whereToPut newWidth done.. memcpy newBitmapPixels jniBitmap _storedBitmapPixels sizeof uint32_t pixelsCount AndroidBitmap_unlockPixels env newBitmap.. bitmapInfo.width memcpy storedBitmapPixels src sizeof uint32_t pixelsCount AndroidBitmap_unlockPixels env bitmap JniBitmap..
How to create named pipe (mkfifo) in Android? http://stackoverflow.com/questions/2740321/how-to-create-named-pipe-mkfifo-in-android socklen_t pSockLen int nameLen strlen name if nameLen int sizeof pAddr sun_path 1 too long return 1 pAddr sun_path 0 ' 0' abstract.. goto bail char buf 64 int count read clientSock buf sizeof buf close clientSock if count 0 perror server read goto bail..
http://stackoverflow.com/questions/4577268/iptables-in-android 0 pseudohead.proto IPPROTO_TCP pseudohead.length htons sizeof struct tcphdr tcpopt_len tcpdatalen int totaltcp_len sizeof.. struct tcphdr tcpopt_len tcpdatalen int totaltcp_len sizeof struct tcp_pseudo sizeof struct tcphdr tcpopt_len tcpdatalen.. tcpdatalen int totaltcp_len sizeof struct tcp_pseudo sizeof struct tcphdr tcpopt_len tcpdatalen unsigned short tcp new unsigned..
Runtime.exec() bug: hangs without providing a Process object http://stackoverflow.com/questions/8688382/runtime-exec-bug-hangs-without-providing-a-process-object parent does this int result int count read statusIn result sizeof int hangs there close statusIn Though the child process is.. invalid. execFailed int error errno write statusOut error sizeof int close statusOut exit error The child can fail for 2 reproducible..
Android - Set max length of logcat messages http://stackoverflow.com/questions/8888654/android-set-max-length-of-logcat-messages 1024 #define LOGGER_ENTRY_MAX_PAYLOAD LOGGER_ENTRY_MAX_LEN sizeof struct logger_entry So the real message size for both binary..
Rotating a bitmap using JNI & NDK http://stackoverflow.com/questions/14398670/rotating-a-bitmap-using-jni-ndk uint32_t info.height info.width int stride info.stride int pixelsCount info.height info.width memcpy tempPixels src sizeof uint32_t pixelsCount AndroidBitmap_unlockPixels env bitmap recycle bitmap using bitmap.recycle LOGD recycling bitmap.....
How to cache bitmaps into native memory http://stackoverflow.com/questions/17900732/how-to-cache-bitmaps-into-native-memory jniBitmap _bitmapInfo.height jniBitmap _bitmapInfo.width memcpy newBitmapPixels jniBitmap _storedBitmapPixels sizeof uint32_t pixelsCount AndroidBitmap_unlockPixels env newBitmap LOGD returning the new bitmap return newBitmap JNIEXPORT jobject.. bitmapInfo.height bitmapInfo.width int pixelsCount bitmapInfo.height bitmapInfo.width memcpy storedBitmapPixels src sizeof uint32_t pixelsCount AndroidBitmap_unlockPixels env bitmap JniBitmap jniBitmap new JniBitmap jniBitmap _bitmapInfo bitmapInfo..
JNI bitmap operations , for helping to avoid OOM when using large images [closed] http://stackoverflow.com/questions/18250951/jni-bitmap-operations-for-helping-to-avoid-oom-when-using-large-images left top oldWidth uint32_t whereToPut newBitmapPixels for int y top y bottom y memcpy whereToPut whereToGet sizeof uint32_t newWidth whereToGet oldWidth whereToPut newWidth done copying so replace old data with new one delete previousData.. jniBitmap _bitmapInfo.height jniBitmap _bitmapInfo.width memcpy newBitmapPixels jniBitmap _storedBitmapPixels sizeof uint32_t pixelsCount AndroidBitmap_unlockPixels env newBitmap LOGD returning the new bitmap return newBitmap store java.. bitmapInfo.height bitmapInfo.width int pixelsCount bitmapInfo.height bitmapInfo.width memcpy storedBitmapPixels src sizeof uint32_t pixelsCount AndroidBitmap_unlockPixels env bitmap JniBitmap jniBitmap new JniBitmap jniBitmap _bitmapInfo bitmapInfo..
How to create named pipe (mkfifo) in Android? http://stackoverflow.com/questions/2740321/how-to-create-named-pipe-mkfifo-in-android work. int makeAddr const char name struct sockaddr_un pAddr socklen_t pSockLen int nameLen strlen name if nameLen int sizeof pAddr sun_path 1 too long return 1 pAddr sun_path 0 ' 0' abstract namespace strcpy pAddr sun_path 1 name pAddr sun_family.. accept fd NULL NULL if clientSock 0 perror server accept goto bail char buf 64 int count read clientSock buf sizeof buf close clientSock if count 0 perror server read goto bail printf GOT ' s' n buf result 0 bail close fd return result..
http://stackoverflow.com/questions/4577268/iptables-in-android myip saddr pseudohead.dst_addr myip daddr pseudohead.zero 0 pseudohead.proto IPPROTO_TCP pseudohead.length htons sizeof struct tcphdr tcpopt_len tcpdatalen int totaltcp_len sizeof struct tcp_pseudo sizeof struct tcphdr tcpopt_len tcpdatalen.. 0 pseudohead.proto IPPROTO_TCP pseudohead.length htons sizeof struct tcphdr tcpopt_len tcpdatalen int totaltcp_len sizeof struct tcp_pseudo sizeof struct tcphdr tcpopt_len tcpdatalen unsigned short tcp new unsigned short totaltcp_len unsigned.. pseudohead.length htons sizeof struct tcphdr tcpopt_len tcpdatalen int totaltcp_len sizeof struct tcp_pseudo sizeof struct tcphdr tcpopt_len tcpdatalen unsigned short tcp new unsigned short totaltcp_len unsigned short tcp malloc totaltcp_len..
Runtime.exec() bug: hangs without providing a Process object http://stackoverflow.com/questions/8688382/runtime-exec-bug-hangs-without-providing-a-process-object logs So here is what I found so far after the fork the parent does this int result int count read statusIn result sizeof int hangs there close statusIn Though the child process is not supposed to block on it That's what the child does if started.. commands If we got here execvp failed or the working dir was invalid. execFailed int error errno write statusOut error sizeof int close statusOut exit error The child can fail for 2 reproducible reasons 1 child code is not running but the parent..
Android - Set max length of logcat messages http://stackoverflow.com/questions/8888654/android-set-max-length-of-logcat-messages logs there is also a limit #define LOGGER_ENTRY_MAX_LEN 4 1024 #define LOGGER_ENTRY_MAX_PAYLOAD LOGGER_ENTRY_MAX_LEN sizeof struct logger_entry So the real message size for both binary and non binary logs is ~4076 bytes. The kernel logger interface..
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