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Add flags argument to dsm_create.

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Right now, there's only one flag, DSM_CREATE_NULL_IF_MAXSEGMENTS,
which suppresses the error that would normally be thrown when the
maximum number of segments already exists, instead returning NULL.
It might be useful to add more flags in the future, such as one to
ignore allocation errors, but I haven't done that here.
This commit is contained in:
Robert Haas
2015-03-19 13:02:16 -04:00
parent 5f286c0242
commit 12968cf408
3 changed files with 33 additions and 4 deletions
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2
src/test/modules/test_shm_mq/setup.c
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@ -125,7 +125,7 @@ setup_dynamic_shared_memory(int64 queue_size, int nworkers,
segsize = shm_toc_estimate(&e);
/* Create the shared memory segment and establish a table of contents. */
seg = dsm_create(shm_toc_estimate(&e));
seg = dsm_create(shm_toc_estimate(&e), 0);
toc = shm_toc_create(PG_TEST_SHM_MQ_MAGIC, dsm_segment_address(seg),
segsize);