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Questions tagged [libmysql]

Libmysql is a client library for connecting C written application to MySql.

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How to "disable" mysqlnd native type cast support in PHP

Backstory We are migrating our projects codebase from PHP 5.3 to PHP 7.0 on a CentOS 6 platform. The old stack uses Apache with PHP 5.3 libphp module + libmysql and the new stack uses Nginx with PHP 7.0 FPM + mysqlnd. We have them configured to run…
Karl Viiburg
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MySQL connector(libmysql/C) is very slow in get RES

"select * from tables" query in MySQL connector/libmysql C is very slow in getting the results: Here is my code in C : int getfrommysql() { time_t starttime, endtime; time(&starttime); double st; st = GetTickCount(); MYSQL…
Zhao Liu
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mysql_ping causes SIGSEGV

I use c++ and mysql++ library. I have separate mysqlpp::Connection object on each thread. All mysqlpp options are default(ReconnectOption is disabled). Each thread keeps persistent connection to the MariaDB server. Before series of SQL queries I…
Alex
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How to downgrade libmysqlclient

I just built a new dev box with Ubuntu 10.04.1 amd64 server on, installed all all libraries and stuff , but now my program segfaults randomly in libmysqlclient16. Just to eliminate things I tried to downgrade to libmysqlclient15, as this is the…
Strahd_za
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How to include libmysql in libwebsocket coding?

I am trying to use libwebsocket to build up my WebSocket server and I need to used libmysql in my code. I have install the libmysql and able to use it but I don't know how to include it using cmake in CMakeList.txt I have include it in my…
kennyfung
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Runtime "symbol lookup error" when accessing libmysqlclient.so functionality in C

Context: I am not certain whether this is my problem or the problem of the server this is running on. I am trying to compile and run a small utility, to become a cron job, that uses the mysql libraries. The program compiles successfully with the…
haslo
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Cannot find -libmysql or undefinder reference with -mysqllib with mysql library

Cannot find -libmysql or undefinder reference with -mysqllib Hi I have a problem with a regular connection to the database using the code blocks. If Include -libmysql -Cannot find, and if -mysqllib - undefinder reference. I also added a folder lib…
xodoss
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How can i detect that a thread not created by me is finished ? (to call mysql_thread_end)

I have a problem with the design of mysql client library. MySQL requires that each thread that uses the MySQL API first call mysql_thread_init() and at the end call mysql_thread_end(). If the thread fails to call mysql_thread_end(), then MySQL…
zeus
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.app file not working in other MAC system

I have created a MAC application with libraries 'libmysqlclient.a' and 'libmysqlclient.18.dylib' with Objective-C language in Xcode 6.3.1 in OSX Yosemite 10.10.3. Its working fine when running through Xcode. And I also archived the .app file to…
shlok
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c linux - memset raise Segmentation Fault in Release build, printf somehow can 'fix' it?

I'm getting segmentation fault on CentOS 7 64-bit, Release build (there's no issue in debug build) I tried adding printf to locate where exactly the segfault happens, for below code, segfault raises at: memset(len_p, 0, sizeof(*len_p)); Also, If I…
jerry
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mysql C API - mysql_stmt_fetch throw exception: access violation write at 0x00000008

I'm getting "Unhandled exception at 0x0369AF03 (libmysql.dll) in node.exe: 0xC0000005: Access violation writing location 0x00000008." error message while using mysql C API in a loop. Environment: Windows 7 32bit, Mysql 5.6 The error only occurs in…
jerry
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Progress 4GL connecting to MySQL using libmysql.dll

I am trying to connect from Progress OpenEdge to MySQL using libmysql.dll and mysql-functions.i which I found online. It works connecting from Progress OpenEdge 101b to MySql, but when I try to connect from Progress OpenEdge 1102 to MySql it crashes…
iceiceady
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Merging from libmysqld DB to MySQL

MySQL provides a zero configuration DB library (libmysqld) which can create a standalone DB. Can this standalone DB be merged into MySQL at a lightning speed? SQLite DB can be merged into another at a blink of an eye, regardless of how much data it…
PS123
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How to insert a binary stream in to MySQL without ASCII conversation?

I have an application written in "C" - debian distro (using libmysqlclient). My application is inserting a huge number of rows in to the database (around 30.000 rows/sec, row length ~ 150 B). Insertion takes many of CPU, because the client (my app)…
Jan Nejman
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Multithreaded programming with libmysql

I'm using libmysql in a simple multithreaded app which will run on a uni-core embedded system processor. I read here that the client library is almost thread-safe. Do I need to serialise my app (say, with a mutex)?
Zaxter
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