[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #21 on issue 248 by bschlin...@inbound5.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 Another solution is to use nanopb: http://koti.kapsi.fi/jpa/nanopb/ This worked well for a recent embedded systems project which used PBs. -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To unsubscribe from this group and stop receiving emails from it, send an email to protobuf+unsubscr...@googlegroups.com. To post to this group, send email to protobuf@googlegroups.com. Visit this group at http://groups.google.com/group/protobuf?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #17 on issue 248 by hazelnu...@gmail.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 Has anybody determined the correct way to build protobuf without depending on a threading library? I want to use protobuf on a ARM Cortex-M4 with an RTOS that does not provide pthreads. Do the changes that the original patch made roughly apply to the latest svn checkout? -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To unsubscribe from this group and stop receiving emails from it, send an email to protobuf+unsubscr...@googlegroups.com. To post to this group, send email to protobuf@googlegroups.com. Visit this group at http://groups.google.com/group/protobuf?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #18 on issue 248 by ronanpai...@gmail.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 On my ARM Cortex-M3 project I just used protobuf-c and replaced the malloc() calls with static objects, since only one thread used the objects synchronously. -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To unsubscribe from this group and stop receiving emails from it, send an email to protobuf+unsubscr...@googlegroups.com. To post to this group, send email to protobuf@googlegroups.com. Visit this group at http://groups.google.com/group/protobuf?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #19 on issue 248 by hazelnu...@gmail.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 Is that code up anywhere so I could check it out? By protobuf-c, you mean this one right: https://code.google.com/p/protobuf-c/ It seems like it hasn't been touched in 2 years. -- You received this message because this project is configured to send all issue notifications to this address. You may adjust your notification preferences at: https://code.google.com/hosting/settings -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To unsubscribe from this group and stop receiving emails from it, send an email to protobuf+unsubscr...@googlegroups.com. To post to this group, send email to protobuf@googlegroups.com. Visit this group at http://groups.google.com/group/protobuf?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #14 on issue 248 by eyal.far...@gmail.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 I had a look at the proposed patch, the one that cannot be merged into GPB release... Just a thought: once.h is compiled either as part of GPB itself or as part of generated pb.cc file. I think the compilation of GPB itself can be handled by adding a configure option that will add a definition of 'PROTOBUF_WITHOUT_THREAD_SAFETY' to the CC_FLAGS or config.h. The second scenario, compilation of a generated pb.cc file can be handled by an option to the code generator that will define this symbol in the scope of the pb.cc file (only). I know that this approach makes room for erroneous situations like thread-less GPB with a thread-enabled generated classes, but I think there must be a way to fix this. is this approach acceptable in any way? Eyal. -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #15 on issue 248 by ronanpai...@gmail.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 Maybe one can define weak functions that are thread-safe and then the user may override with functions pertaining to each platform. Or separate those functions in a single file to make the transition easier. -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #13 on issue 248 by ronanpai...@gmail.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 Some platforms simply don't have PTHREADS. Some because they aren't multithreaded or have unusual OSes (i.e. microcontrollers with RTOS or bare-metal, without OS). -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #11 on issue 248 by liuj...@google.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 We do have a draft here see http://codereview.appspot.com/3540041/ From the review comments, the blocking issue is google/protobuf/stubs/once.h needs to include config.h, which is not acceptable. You can actually patch the diff to have a hardcoded no thread-safety protobuf. -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #9 on issue 248 by jonny.de...@googlemail.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 So now I am not sure whether there is a way to build 2.4.0a without pthread dependency. I would like to use protobuf in a single-threaded embedded environment, where there is no pthread library. Is this possible? If yes, how would I invoke configure to do this? -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #10 on issue 248 by ken...@google.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 You will need to modify the protobuf code slightly, but it should be easy. Find the places that use pthread (there aren't many of them) and replace them with code appropriate for a single-threaded context. You can just delete the mutex lock/unlock calls. For pthread_once, you'll need to make the once type just contain a boolean flag and have the once-init call return if the flag is already set, otherwise call the callback and then set the flag. If someone wants to write a patch implementing a --without-thread-safety configure option that does this automatically, go for it... -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #8 on issue 248 by ken...@google.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 To be clear, the warning printed by configure (for v2.3.0 and earlier) is bogus. It's a side effect of a deeper bug in the m4 file that we're trying to fix. But basically, you can ignore it. -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to proto...@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #7 on issue 248 by liuj...@google.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 Yes, the r353 fix isn't correct. Rolled it back at r360. -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to proto...@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #3 on issue 248 by liuj...@google.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 Hmm, what OS/platform are you using? Common platforms should define HAVE_PTHREAD.. Maybe it's the acx_pthread.m4 problem.. -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to proto...@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #4 on issue 248 by ryan.drake.08: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 Brew mobile platform, with the RVCT4.0 ARM compiler. I think HAVE_PTHREAD should be around all code blocks that require pthread.h, but I agree that you don't want to fall back to unsafe code unless the user takes affirmative action during configure. Perhaps keep the HAVE_PTHREAD define and put it around all the pthread code, and then add --without-thread-safety and make it set some kind of WITH_STUBBED_THREAD define that would enable the stubs? -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to proto...@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #5 on issue 248 by poftwaresatent: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 For what it's worth, I'm running into this on OS X 10.6.5 with up-to-date macports and protobuf svn rev 358. The configure script does give me a warning: ... checking for the pthreads library -lpthreads... no checking whether pthreads work without any flags... yes checking for joinable pthread attribute... PTHREAD_CREATE_JOINABLE checking if more special flags are required for pthreads... -D_THREAD_SAFE checking whether to check for GCC pthread/shared inconsistencies... yes checking whether -pthread is sufficient with -shared... no checking whether -lpthread fixes that... no checking whether -lc_r fixes that... no configure: WARNING: Impossible to determine how to use pthreads with shared libraries ... Strange enough, Darwin does come with /usr/lib/libpthread.dylib and /usr/include/pthread.h. I'll keep digging, but it's not high on my priority list. Maybe just need to tweak the configure.ac a bit? -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to proto...@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #6 on issue 248 by poftwaresatent: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 Looks like r353 broke the m4 code that checks for pthread/sharedlib coexistance on OS X. Somehow m4/acx_pthread.m4 ends up injecting -Wl,-z,foo onto the gcc command line, which Apple's ld chokes on (invalid option -z or something like that). Reverting to r352 seems to work around the issue. -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to proto...@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Updates: Status: Accepted Owner: ken...@google.com Comment #2 on issue 248 by ken...@google.com: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 Hmm. I don't think we should automatically fall back to thread-hostile code when no threading library is available -- this could cause really hard-to-debug problems if it happened by accident. But we could certainly provide a way for the user to explicitly ask for this, e.g. a --without-thread-safety configure option. -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to proto...@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: Issue 248 in protobuf: protobuf will not compile without thread library
Comment #1 on issue 248 by ryan.drake.08: protobuf will not compile without thread library http://code.google.com/p/protobuf/issues/detail?id=248 Note, these stubs are enough to compile protobuf-lite. Not sure if more are needed for the full library. -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to proto...@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
