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* Phase 2 pgindent run for v12.Tom Lane2019-05-22
| | | | | | | | | Switch to 2.1 version of pg_bsd_indent. This formats multiline function declarations "correctly", that is with additional lines of parameter declarations indented to match where the first line's left parenthesis is. Discussion: https://postgr.es/m/CAEepm=0P3FeTXRcU5B2W3jv3PgRVZ-kGUXLGfd42FFhUROO3ug@mail.gmail.com
* Initial pgindent run for v12.Tom Lane2019-05-22
| | | | | | | | This is still using the 2.0 version of pg_bsd_indent. I thought it would be good to commit this separately, so as to document the differences between 2.0 and 2.1 behavior. Discussion: https://postgr.es/m/16296.1558103386@sss.pgh.pa.us
* Move logging.h and logging.c from src/fe_utils/ to src/common/.Tom Lane2019-05-14
| | | | | | | | | | | | | | | | | | | | | | | | The original placement of this module in src/fe_utils/ is ill-considered, because several src/common/ modules have dependencies on it, meaning that libpgcommon and libpgfeutils now have mutual dependencies. That makes it pointless to have distinct libraries at all. The intended design is that libpgcommon is lower-level than libpgfeutils, so only dependencies from the latter to the former are acceptable. We already have the precedent that fe_memutils and a couple of other modules in src/common/ are frontend-only, so it's not stretching anything out of whack to treat logging.c as a frontend-only module in src/common/. To the extent that such modules help provide a common frontend/backend environment for the rest of common/ to use, it's a reasonable design. (logging.c does not yet provide an ereport() emulation, but one can dream.) Hence, move these files over, and revert basically all of the build-system changes made by commit cc8d41511. There are no places that need to grow new dependencies on libpgcommon, further reinforcing the idea that this is the right solution. Discussion: https://postgr.es/m/a912ffff-f6e4-778a-c86a-cf5c47a12933@2ndquadrant.com
* Unified logging system for command-line programsPeter Eisentraut2019-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This unifies the various ad hoc logging (message printing, error printing) systems used throughout the command-line programs. Features: - Program name is automatically prefixed. - Message string does not end with newline. This removes a common source of inconsistencies and omissions. - Additionally, a final newline is automatically stripped, simplifying use of PQerrorMessage() etc., another common source of mistakes. - I converted error message strings to use %m where possible. - As a result of the above several points, more translatable message strings can be shared between different components and between frontends and backend, without gratuitous punctuation or whitespace differences. - There is support for setting a "log level". This is not meant to be user-facing, but can be used internally to implement debug or verbose modes. - Lazy argument evaluation, so no significant overhead if logging at some level is disabled. - Some color in the messages, similar to gcc and clang. Set PG_COLOR=auto to try it out. Some colors are predefined, but can be customized by setting PG_COLORS. - Common files (common/, fe_utils/, etc.) can handle logging much more simply by just using one API without worrying too much about the context of the calling program, requiring callbacks, or having to pass "progname" around everywhere. - Some programs called setvbuf() to make sure that stderr is unbuffered, even on Windows. But not all programs did that. This is now done centrally. Soft goals: - Reduces vertical space use and visual complexity of error reporting in the source code. - Encourages more deliberate classification of messages. For example, in some cases it wasn't clear without analyzing the surrounding code whether a message was meant as an error or just an info. - Concepts and terms are vaguely aligned with popular logging frameworks such as log4j and Python logging. This is all just about printing stuff out. Nothing affects program flow (e.g., fatal exits). The uses are just too varied to do that. Some existing code had wrappers that do some kind of print-and-exit, and I adapted those. I tried to keep the output mostly the same, but there is a lot of historical baggage to unwind and special cases to consider, and I might not always have succeeded. One significant change is that pg_rewind used to write all error messages to stdout. That is now changed to stderr. Reviewed-by: Donald Dong <xdong@csumb.edu> Reviewed-by: Arthur Zakirov <a.zakirov@postgrespro.ru> Discussion: https://www.postgresql.org/message-id/flat/6a609b43-4f57-7348-6480-bd022f924310@2ndquadrant.com
* Tolerate EINVAL when calling fsync() on a directory.Thomas Munro2019-02-24
| | | | | | | | | | | Previously, we tolerated EBADF as a way for the operating system to indicate that it doesn't support fsync() on a directory. Tolerate EINVAL too, for older versions of Linux CIFS. Bug #15636. Back-patch all the way. Reported-by: John Klann Discussion: https://postgr.es/m/15636-d380890dafd78fc6@postgresql.org
* Update copyright for 2019Bruce Momjian2019-01-02
| | | | Backpatch-through: certain files through 9.4
* Allow concurrent-safe open() and fopen() in frontend code for WindowsMichael Paquier2018-09-14
| | | | | | | | | | | | | | | | | | | | PostgreSQL uses a custom wrapper for open() and fopen() which is concurrent-safe, allowing multiple processes to open and work on the same file. This has a couple of advantages: - pg_test_fsync does not handle O_DSYNC correctly otherwise, leading to false claims that disks are unsafe. - TAP tests can run into race conditions when a postmaster and pg_ctl open postmaster.pid, fixing some random failures in the buildfam. pg_upgrade is one frontend tool using workarounds to bypass file locking issues with the log files it generates, however the interactions with pg_ctl are proving to be tedious to get rid of, so this is left for later. Author: Laurenz Albe Reviewed-by: Michael Paquier, Kuntal Ghosh Discussion: https://postgr.es/m/1527846213.2475.31.camel@cybertec.at Discussion: https://postgr.es/m/16922.1520722108@sss.pgh.pa.us
* Update copyright for 2018Bruce Momjian2018-01-02
| | | | Backpatch-through: certain files through 9.3
* Phase 3 of pgindent updates.Tom Lane2017-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | Don't move parenthesized lines to the left, even if that means they flow past the right margin. By default, BSD indent lines up statement continuation lines that are within parentheses so that they start just to the right of the preceding left parenthesis. However, traditionally, if that resulted in the continuation line extending to the right of the desired right margin, then indent would push it left just far enough to not overrun the margin, if it could do so without making the continuation line start to the left of the current statement indent. That makes for a weird mix of indentations unless one has been completely rigid about never violating the 80-column limit. This behavior has been pretty universally panned by Postgres developers. Hence, disable it with indent's new -lpl switch, so that parenthesized lines are always lined up with the preceding left paren. This patch is much less interesting than the first round of indent changes, but also bulkier, so I thought it best to separate the effects. Discussion: https://postgr.es/m/E1dAmxK-0006EE-1r@gemulon.postgresql.org Discussion: https://postgr.es/m/30527.1495162840@sss.pgh.pa.us
* Phase 2 of pgindent updates.Tom Lane2017-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change pg_bsd_indent to follow upstream rules for placement of comments to the right of code, and remove pgindent hack that caused comments following #endif to not obey the general rule. Commit e3860ffa4dd0dad0dd9eea4be9cc1412373a8c89 wasn't actually using the published version of pg_bsd_indent, but a hacked-up version that tried to minimize the amount of movement of comments to the right of code. The situation of interest is where such a comment has to be moved to the right of its default placement at column 33 because there's code there. BSD indent has always moved right in units of tab stops in such cases --- but in the previous incarnation, indent was working in 8-space tab stops, while now it knows we use 4-space tabs. So the net result is that in about half the cases, such comments are placed one tab stop left of before. This is better all around: it leaves more room on the line for comment text, and it means that in such cases the comment uniformly starts at the next 4-space tab stop after the code, rather than sometimes one and sometimes two tabs after. Also, ensure that comments following #endif are indented the same as comments following other preprocessor commands such as #else. That inconsistency turns out to have been self-inflicted damage from a poorly-thought-through post-indent "fixup" in pgindent. This patch is much less interesting than the first round of indent changes, but also bulkier, so I thought it best to separate the effects. Discussion: https://postgr.es/m/E1dAmxK-0006EE-1r@gemulon.postgresql.org Discussion: https://postgr.es/m/30527.1495162840@sss.pgh.pa.us
* Post-PG 10 beta1 pgindent runBruce Momjian2017-05-17
| | | | perltidy run not included.
* Fix new warnings from GCC 7Peter Eisentraut2017-04-17
| | | | | This addresses the new warning types -Wformat-truncation -Wformat-overflow that are part of -Wall, via -Wformat, in GCC 7.
* Sync pg_dump and pg_dumpall outputAndrew Dunstan2017-03-22
| | | | | | | | | | | Before exiting any files are fsync'ed. A --no-sync option is also provided for a faster exit if desired. Michael Paquier. Reviewed by Albe Laurenz Discussion: https://postgr.es/m/CAB7nPqS1uZ=Ov+UruW6jr3vB-S_DLVMPc0dQpV-fTDjmm0ZQMg@mail.gmail.com
* Update copyright via script for 2017Bruce Momjian2017-01-03
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* Rename "pg_xlog" directory to "pg_wal".Robert Haas2016-10-20
| | | | | | | | | | | | | | | | | | | | | "xlog" is not a particularly clear abbreviation for "write-ahead log", and it sometimes confuses users into believe that the contents of the "pg_xlog" directory are not critical data, leading to unpleasant consequences. So, rename the directory to "pg_wal". This patch modifies pg_upgrade and pg_basebackup to understand both the old and new directory layouts; the former is necessary given the purpose of the tool, while the latter merely avoids an unnecessary backward-compatibility break. We may wish to consider renaming other programs, switches, and functions which still use the old "xlog" naming to also refer to "wal". However, that's still under discussion, so let's do just this much for now. Discussion: CAB7nPqTeC-8+zux8_-4ZD46V7YPwooeFxgndfsq5Rg8ibLVm1A@mail.gmail.com Michael Paquier
* Avoid leaking FDs after an fsync failure.Tom Lane2016-10-02
| | | | | | | | | | Fixes errors introduced in commit bc34223bc, as detected by Coverity. In passing, report ENOSPC for a short write while padding a new wal file in open_walfile, make certain that close_walfile closes walfile in all cases, and improve a couple of comments. Michael Paquier and Tom Lane
* Fix compiler warningsPeter Eisentraut2016-09-29
| | | | | This was missed in bf5bb2e85b6492c7245b9446efaf43d52a98db13, because the code is only visible under PG_FLUSH_DATA_WORKS.
* pg_basebackup pg_receivexlog: Issue fsync more carefullyPeter Eisentraut2016-09-29
| | | | | | | | | | Several places weren't careful about fsyncing in the way. See 1d4a0ab1 and 606e0f98 for details about required fsyncs. This adds a couple of functions in src/common/ that have an equivalent in the backend: durable_rename(), fsync_parent_path() From: Michael Paquier <michael.paquier@gmail.com>
* Move fsync routines of initdb into src/common/Peter Eisentraut2016-09-29
The intention is to used those in other utilities such as pg_basebackup and pg_receivexlog. From: Michael Paquier <michael.paquier@gmail.com>