Thank you very very much! I'll try it and believe that will be ok with everything. :) >From: "bharani" <bharanis@future.futsoft.com> >Reply-To: <bharanis@future.futsoft.com> >To: <kernelnewbies@nl.linux.org> >Subject: Re: thread safe error number >Date: Wed, 3 Apr 2002 15:16:54 +0530 > >hii, > We faced a similar problem when working on a Solaris system. > we were using a multithreaded application and the code used the 'errno' >set by system calls to make some decision. Initially the code misbehaved >because errno was mapped to a global variable instead of thread specific >errno. > then we enabled a flag -D_REENTRANT while compiling. The code worked. > for code using posix threads _POSIX_C_SOURCE >= 199506L should >suffice. > > in linux -D_LIBC_REENTRANT should be used ... (because it uses GNU >libc) > in linux the 'errno' is mapped to a function in bits/errno.h under that >flag >-bharani > > > >-----Original Message----- >From: kernelnewbies-bounce@nl.linux.org >[mailto:kernelnewbies-bounce@nl.linux.org]On Behalf Of David Davy >Sent: Wednesday, 3 April 2002 9:14 AM >To: kernelnewbies@nl.linux.org >Subject: thread safe error number > > >Hi, every one: > >I'm working on some codes between userland and kernel space. But, I >couldn't >get the correct error number via global variable 'errno' because of its >no-thread-safe property. Any suggestions? > >Many thanks > >David >-- >To the systems programmer, users and applications serve only to provide a >test load. > > >_________________________________________________________________ >MSN Photos is the easiest way to share and print your photos: >http://photos.msn.com/support/worldwide.aspx > >-- >Kernelnewbies: Help each other learn about the Linux kernel. >Archive: http://mail.nl.linux.org/kernelnewbies/ >FAQ: http://kernelnewbies.org/faq/ > >*************************************************************************** >This message is proprietary to Future Software Limited (FSL) >and is intended solely for the use of the individual to whom it >is addressed. It may contain privileged or confidential information >and should not be circulated or used for any purpose other than for >what it is intended. > >If you have received this message in error, please notify the >originator immediately. If you are not the intended recipient, >you are notified that you are strictly prohibited from using, >copying, altering, or disclosing the contents of this message. >FSL accepts no responsibility for loss or damage arising from >the use of the information transmitted by this email including >damage from virus. >*************************************************************************** >-- >Kernelnewbies: Help each other learn about the Linux kernel. >Archive: http://mail.nl.linux.org/kernelnewbies/ >FAQ: http://kernelnewbies.org/faq/ > David -- To the systems programmer, users and applications serve only to provide a test load. _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
