Re: [sqlite] Proposed: drop support for LinuxThreads
On May 19, 2010, at 6:35 PM, Mike Frysinger wrote: > On Wednesday 12 May 2010 11:43:13 D. Richard Hipp wrote: >> If we drop support for (the non-standard, non-compliant) LinuxThreads >> threading library and instead support only standard Posix threads >> implemented using NPTL, beginning with SQLite release 3.7.0, what >> disruptions might this cause? >> >> Is anybody still using LinuxThreads? > > yes. there are some architectures that lack NPTL at all, and most > ports using > uClibc (the most common embedded port) does not have NPTL support. > > is leaving the code alone that big of a hassle ? Yes, it is a huge hassle. And it has already been removed. Beginning with version 3.7.0, SQLite requires posix threads if you want to use it in a multi-threaded environment on unix. LinuxThreads is not an acceptable substitute. Of course, you can still take the sensible approach and avoid multithreading all together. Failing that, SQLite should still work on LinuxThreads if you avoid passing database connections from one thread to another. D. Richard Hipp d...@hwaci.com ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Proposed: drop support for LinuxThreads
On Wed, May 12, 2010 at 11:43 AM, D. Richard Hipp wrote: > If we drop support for (the non-standard, non-compliant) LinuxThreads > threading library and instead support only standard Posix threads > implemented using NPTL, beginning with SQLite release 3.7.0, what > disruptions might this cause? > > Is anybody still using LinuxThreads? > FWIW, our only platform still using LinuxThreads is [/was] coldfire+MMU (v4e), and a couple of months ago CodeSourcery pushed complete NPTL support for it upstream. It's not a very popular or well-supported system, so I'd take that as a sign that LinuxThreads is on its last legs. Obviously there will always be some exceptions, but I'd imagine that few of them are concerned with keeping those systems up to date with the very latest SQLite. -- Matthew L. Creech ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Proposed: drop support for LinuxThreads
On 05/13/2010 01:43 AM, ext D. Richard Hipp wrote: > If we drop support for (the non-standard, non-compliant) LinuxThreads > threading library and instead support only standard Posix threads > implemented using NPTL, beginning with SQLite release 3.7.0, what > disruptions might this cause? > > Is anybody still using LinuxThreads? > > D. Richard Hipp > d...@hwaci.com > > > > ___ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > Some old embedded platforms have libc compiled with nptl to "save space", seriously tho, it's pretty much down to a matter of recompiling libc with the appropriate thread library support. Consider this a vote for removal/clarity/standardisation, as it's not a huge deal to turn pthreads on. -- Bill King, Software Engineer Qt Development Frameworks, Nokia Pty Ltd Brisbane Office ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Proposed: drop support for LinuxThreads
* D. Richard Hipp: > If we drop support for (the non-standard, non-compliant) LinuxThreads > threading library and instead support only standard Posix threads > implemented using NPTL, beginning with SQLite release 3.7.0, what > disruptions might this cause? There are several variants of NPTL with varying feature sets on different GNU/Linux architectures. But I think you are only after the behavior of fcntl locks, and those are the same across architectures. ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
[sqlite] Proposed: drop support for LinuxThreads
If we drop support for (the non-standard, non-compliant) LinuxThreads threading library and instead support only standard Posix threads implemented using NPTL, beginning with SQLite release 3.7.0, what disruptions might this cause? Is anybody still using LinuxThreads? D. Richard Hipp d...@hwaci.com ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
