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path: root/src/backend/storage/ipc/dsm_impl.c
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* Don't use function definitions looking like old-style ones.Andres Freund2015-08-15
| | | | | | | This fixes a bunch of somewhat pedantic warnings with new compilers. Since by far the majority of other functions definitions use the (void) style it just seems to be consistent to do so as well in the remaining few places.
* pgindent run for 9.5Bruce Momjian2015-05-23
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* Use mmap MAP_NOSYNC option to limit shared memory writesBruce Momjian2015-03-21
| | | | | | | mmap() is rarely used for shared memory, but when it is, this option is useful, particularly on the BSDs. Patch by Sean Chittenden
* Update copyright for 2015Bruce Momjian2015-01-06
| | | | Backpatch certain files through 9.0
* "Pin", rather than "keep", dynamic shared memory mappings and segments.Robert Haas2014-10-30
| | | | | | | | | | Nobody seemed concerned about this naming when it originally went in, but there's a pending patch that implements the opposite of dsm_keep_mapping, and the term "unkeep" was judged unpalatable. "unpin" has existing precedent in the PostgreSQL code base, and the English language, so use this terminology instead. Per discussion, back-patch to 9.4.
* Assorted message fixes and improvementsPeter Eisentraut2014-09-05
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* Remove unnecessary cleanup code.Robert Haas2014-05-22
| | | | | | | This is all inside a block guarded by op == DSM_OP_ATTACH, so it can never be the case that op == DSM_OP_CREATE. Reported by Coverity.
* pgindent run for 9.4Bruce Momjian2014-05-06
| | | | | This includes removing tabs after periods in C comments, which was applied to back branches, so this change should not effect backpatching.
* Try to fix spurious DSM failures on Windows.Robert Haas2014-04-16
| | | | | | | | Apparently, Windows can sometimes return an error code even when the operation actually worked just fine. Rearrange the order of checks according to what appear to be the best practices in this area. Amit Kapila
* Fix whitespacePeter Eisentraut2014-03-16
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* Allow dynamic shared memory segments to be kept until shutdown.Robert Haas2014-03-10
| | | | | Amit Kapila, reviewed by Kyotaro Horiguchi, with some further changes by me.
* Allow use of "z" flag in our printf calls, and use it where appropriate.Tom Lane2014-01-23
| | | | | | | | | | | | | | | | | | | | | | | | | Since C99, it's been standard for printf and friends to accept a "z" size modifier, meaning "whatever size size_t has". Up to now we've generally dealt with printing size_t values by explicitly casting them to unsigned long and using the "l" modifier; but this is really the wrong thing on platforms where pointers are wider than longs (such as Win64). So let's start using "z" instead. To ensure we can do that on all platforms, teach src/port/snprintf.c to understand "z", and add a configure test to force use of that implementation when the platform's version doesn't handle "z". Having done that, modify a bunch of places that were using the unsigned-long hack to use "z" instead. This patch doesn't pretend to have gotten everyplace that could benefit, but it catches many of them. I made an effort in particular to ensure that all uses of the same error message text were updated together, so as not to increase the number of translatable strings. It's possible that this change will result in format-string warnings from pre-C99 compilers. We might have to reconsider if there are any popular compilers that will warn about this; but let's start by seeing what the buildfarm thinks. Andres Freund, with a little additional work by me
* Update copyright for 2014Bruce Momjian2014-01-07
| | | | | Update all files in head, and files COPYRIGHT and legal.sgml in all back branches.
* Flag mmap implemenation of dynamic shared memory as resize-capable.Robert Haas2013-12-02
| | | | Error noted by Heikki Linnakangas
* Fix format code used to print dsm request sizes.Robert Haas2013-11-04
| | | | Per report from Peter Eisentraut.
* Avoid too-large shift on 32-bit Windows.Robert Haas2013-10-30
| | | | | | | Apparently, shifts greater than or equal to the width of the type are undefined, and can surprisingly produce a non-zero value. Amit Kapila, with a comment by me.
* Modify dynamic shared memory code to use Size rather than uint64.Robert Haas2013-10-28
| | | | This is more consistent with what we do elsewhere.
* Suppress a couple of compiler warnings seen with older gcc versions.Tom Lane2013-10-22
| | | | | | | | | | | | To wit, bgworker.c: In function `RegisterDynamicBackgroundWorker': bgworker.c:761: warning: `generation' might be used uninitialized in this function dsm_impl.c: In function `dsm_impl_op': dsm_impl.c:197: warning: control reaches end of non-void function Neither of these represent actual bugs, but we may as well tweak the code so that more compilers can tell that. This won't change the generated code on compilers that do recognize that the cases are unreachable.
* In dsm_impl_windows, don't error out when the segment already exists.Robert Haas2013-10-14
| | | | | | | This is the behavior of the other implementations, and the behavior expected by the callers of this function. Amit Kapila
* Fix incorrect use of shm_unlink where unlink should be used.Robert Haas2013-10-10
| | | | Per buildfarm.
* Allow dynamic allocation of shared memory segments.Robert Haas2013-10-09
Patch by myself and Amit Kapila. Design help from Noah Misch. Review by Andres Freund.
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