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| author | Michael Paquier <michael@paquier.xyz> | 2019-08-20 16:10:20 +0900 |
|---|---|---|
| committer | Michael Paquier <michael@paquier.xyz> | 2019-08-20 16:10:20 +0900 |
| commit | 56f8f9624ba050c7c47dd97547b7fafb866f2bdd (patch) | |
| tree | 22150637a021a3a7a6a197c0d0acd7b62ed80ab2 /src/bin/scripts/scripts_parallel.h | |
| parent | 0431a787469265776eeb9a472beb3457d2990edb (diff) | |
| download | postgresql-56f8f9624ba050c7c47dd97547b7fafb866f2bdd.tar.gz postgresql-56f8f9624ba050c7c47dd97547b7fafb866f2bdd.zip | |
Fix compilation failure of vacuumdb and reindexdb with OpenBSD
FD_SETSIZE is included in sys/select.h per POSIX, and this header
inclusion has been moved to scripts_parallel.c as of 5f38403 without
moving the variable, causing a compilation failure on recent versions of
OpenBSD (6.6 was the version used in the report).
In order to take care of the failure, move FD_SETSIZE directly to
scripts_parallel.c with a wrapper controlling the maximum number of
parallel slots supported, based on a suggestion by Andres Freund.
While on it, reduce the maximum number to be less than FD_SETSIZE,
leaving some room for stdin, stdout and such as they consume some file
descriptors.
The buildfarm did not complain about that, as it happens to only be
an issue on recent versions of OpenBSD and there is no coverage in this
area. 51c3e9f fixed a similar set of issues.
Bug: #15964
Reported-by: Sean Farrell
Discussion: https://postgr.es/m/15964-c1753bdfed722e04@postgresql.org
Diffstat (limited to 'src/bin/scripts/scripts_parallel.h')
| -rw-r--r-- | src/bin/scripts/scripts_parallel.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/bin/scripts/scripts_parallel.h b/src/bin/scripts/scripts_parallel.h index ab82c5e6a96..8042345072a 100644 --- a/src/bin/scripts/scripts_parallel.h +++ b/src/bin/scripts/scripts_parallel.h @@ -21,6 +21,8 @@ typedef struct ParallelSlot bool isFree; /* Is it known to be idle? */ } ParallelSlot; +extern int ParallelSlotsMax(void); + extern ParallelSlot *ParallelSlotsGetIdle(ParallelSlot *slots, int numslots); extern ParallelSlot *ParallelSlotsSetup(const char *dbname, const char *host, |