filesize

问题 We are planing to program an application for Blackberry and wondering if there is a maximum App size. Searching the App World there were just very small Apps. Our App will have hundreds of Images and Audiofiles. It will have about 40 to 50 MB. Is this possible for Blackberry? thx for your answers! 回答1: It is possible -- but not practical. First consider that many people install an app OTA (over the air) and even on a fast 3G connection it's going to take a LONG time to download 40-50MB.

问题 I am trying to upload a JPG image using a PHP script, but the image is keeps causing my script to time out and die giving this error: Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 2136 bytes) in image.php on line 38 How can I prevent the upload from taking place if the image is too big, or have this error fail gracefully? 回答1: The actual problem is not with the initial file size but with the dimensions of the image itself (height width colorDepth), since you

问题 I ship a read only database with my app including it in Assets/Database directory. All data is pre-populated beforehand. After integrating with SQLCipher and encrypting the database I noticed that the APK size ballooned from 25MB to 150MB . Reason being is that the SQLite db file no longer gets compressed. Android Studio normally will compress resources but after DB file is encrypted it seems zipping the file has no effect. I tried testing this outside with regular Zip & 7Zip and it makes no

问题 My research: The only related question I could find is specific to JWPlayer. My question isn't specific to JWPlayer: Optimal file size for a html5 background video stream with JWPlayer? Search engine results don't seem to yield a guideline either. My question: Before answering that there is no optimal and the world is far too beautiful and replete in variation for one to fathom an answer, bear in mind that I'm basing my question on the average or most common internet connections. To put it

问题 I need to find the size of an elf image for some computation. I have tried with the readelf utility on linux which gives the informations about the headers and section. I need to have the exact file size of the elf(on the whole). How do I find the size of the ELF from the header information or Is there any other means to find the size of an elf without reading the full image. 回答1: You can use the stat functions family (stat(), lstat(), fstat()) to get the size of any file (using the st_size

问题 I am working on a C++ program and the compiled object code from a single 1200-line file (which initializes a rather complex state machine) comes out to nearly a megabyte. What could be making the file so large? Is there a way I can find what takes space inside the object file? 回答1: There can be several reasons when object files are bigger than they have to be at minimum: statically including dependent libraries building with debug information building with profiling information creating

问题 According to the specifiction of gz the filesize is saved in the last 4bytes of a .gz file. I have created 2 files with dd if=/dev/urandom of=500M bs=1024 count=500000 dd if=/dev/urandom of=5G bs=1024 count=5000000 I gziped them gzip 500M 5G I checked the last 4 bytes doing tail -c4 500M|od -I (returns 512000000 as expected) tail -c4 5G|od -I (returns 825032704 as not expected) It seems that hitting the invisible 32bit barrier, makes the value written into the ISIZE completely nonsense. Which

问题 I have an application that is running on a stand-alone panel PC in a kiosk (C#/WPF). It performs some typical logging operations to a text file. The PC has some limited amount of disk space to store these logs as they grow. What I need to do is be able to specify the maximum size that a log file is allowed to be. If, when attempting to write to the log, the max size is exceeded, new data will be written to the end of the log and the oldest data will be purged from the beginning. Getting the

问题 I'm not looking for a workaround; I'd like an explanation. Most of the links I found through Google just tell me that the file limit is 4GB, but not why. I am aware of the explanation by Wikipedia: http://en.wikipedia.org/wiki/File_Allocation_Table#FAT32 But this still does not go into detail about why. (What does SCANDISK have to do with it?) Maybe then I will understand whether it's possible to overcome the 4GB file size limit. 回答1: To extend that answer, FAT32 is derived from FAT16 and

问题 I have a directory will create every day file like '2018-08-14-9-22-4', the file name created is by yyyy-mm-dd-h-m-s, how to check file is exists by substring like '2018-08-14' ? and get the file full name and file size ? my $file = "$yy-$mm-$dd-$hh-$mm-$ss"; my $path = '/home/httpd/doc/$user/$year/[every day file]' 回答1: Simplest way would be to use the pattern matching in glob, and then use stat on the file. for my $name ( glob('2018-08-14-*') ) { my $size = ( stat($name) )[7]; say "name is