zlib

问题 I'm trying to get this Qt project building, but I'm running into these Undefined symbol error having to do with zLib: Undefined symbols for architecture x86_64: "_z_crc32", referenced from: ZipPrivate::createEntry(QFileInfo const&, QString const&, Zip::CompressionLevel) in zip.o UnzipPrivate::extractFile(QString const&, ZipEntryP const&, QIODevice*, QFlags<UnZip::ExtractionOption>) in unzip.o "_z_deflate", referenced from: ZipPrivate::createEntry(QFileInfo const&, QString const&, Zip:

问题 My project contains a Sender/Receiver framework that can only talk one-way , there is no a return channel from the receiver to the sender. The sender compress part of the data it's send to the receiver using zlib. I want to make my receiver resilient to crashes/reboots/restarts, is it possible to join the zlib stream from a random point somehow? Both Sender/Receiver using Z_SYNC_FLUSH. Some ideas I had: Saving state structures to disk and reload them after restart of the receiver. Replacing Z

问题 I have to download zlib to use in my project. I use externlproject_add() to downaload all zlib repository, build and install it. After it, I want do install a lib that is part of zlib repository: minizip. How to set this dependency on cmake? zlib module: cmake_minimum_required ( VERSION 2.8.7 ) include (ExternalProject) if(UNIX) # An external project for zlib SET (GIT_URL https://github.com/madler/zlib.git) SET (ZLIB_INSTALL ${CMAKE_CURRENT_BINARY_DIR}) SET (ZLIB_INCLUDE ${CMAKE_BINARY_DIR}

问题 In a multiplayer game setting, I was going to use zlib to compress larger strings before sending them. I placed the resulting data back into strings, which are to be sent as byte streams using TCP. My problem is, that I need to place control characters into the string as well. For example, I need to add the original string length (in plain text) to the front of the compressed string, and seperate it from the compressed data using some symbol, like "|". But I can't find a way of knowing which

问题 I recently Installed python3.6 on debian 9.4 by these commands wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz tar xvf Python-3.6.5.tgz cd Python-3.6.5 ./configure --enable-optimizations --with-ensurepip=install make -j8 sudo make altinstall python3.6 it worked when i type python3.6 but pip doesn't installed on python3.6 so i decided to install it manually by these commands curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py sudo python3.6 get-pip.py i get this error

问题 I was in the process of Anahita installation - a platform for social networking. In its requirements there is a line which says: Apache 2.0+ (with mod_mysql, mod_xml, mod_zlib) or Nginx You can find its main website here and its installation guide here I installed apache2 (ubuntu 14.04) but when I go to /etc/apache2/mods-available there are no mod_mysql, mod_xml or mod_zlib. how should I add these modules to apache? I couldn't find them in modules.apache.org 回答1: When they talk about " mod

问题 Is there a simple, standard way to decompress a gzip raw data buffer in Objective-C? I could not find anything useful in the Apple Developer documentation. If not, can you point me to a code walk-through, a library, anything that will make my life easier? I am not afraid to write C code. 回答1: There is a NSData category available at cocoadev that can handle zlib and gzip data: http://www.cocoadev.com/index.pl?NSDataCategory If you just need gzip decompression, you can remove the zlib & hash

问题 It could be a silly question. When I tried to uncompress a compressed data in memory, got error. Here is the code. #include <zlib.h> #include <stdio.h> #include <stdlib.h> int readFile(char *fname, char buf[]) { FILE *fp = fopen(fname, "rb"); if (fp == NULL) { printf("Failed to open %s\n", fname); exit(0);} int n = fread(buf, 1, 0x100000, fp); fclose(fp); return n; } char buf[2][0x10000]; int main(int argc, char *argv[]) { long n = readFile(argv[1], &buf[0][0]); unsigned int *pInt = (unsigned

问题 Found this: https://stackoverflow.com/a/11373078/530599 - great, but how about stream_filter_append($fp, 'zlib.inflate', STREAM_FILTER_* Looking for another way to uncompress data. $fp = fopen($src, 'rb'); $to = fopen($output, 'wb'); // some filtering here? stream_copy_to_stream($fp, $to); fclose($fp); fclose($to); Where $src is some url to http://.../file.gz for example 200+ Mb :) Added test-code that works, but in 2 steps: <?php $src = 'http://is.auto.ru/catalog/catalog.xml.gz'; $fp = fopen

问题 I am writing an AWS Lambda function which needs to download files from AWS S3, unzips the file and returns the content in the form of a string. I am trying this function getObject(key){ var params = { Bucket: "my-bucket", Key: key } return new Promise(function (resolve, reject){ s3.getObject(params, function (err, data){ if(err){ reject(err); } resolve(zlib.unzipSync(data.Body)) }) }) } But getting the error Error: incorrect header check at Zlib._handle.onerror (zlib.js:363:17) at Unzip.Zlib.