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src/include/storage/sharedfileset.h
37 строк
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Bruce Momjian
Update copyright for 2026
01 янв 2026, 21:24
01 янв 2026, 21:24
451c439
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/*------------------------------------------------------------------------- * * sharedfileset.h * Shared temporary file management. * * * Portions Copyright (c) 1996-2026, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/storage/sharedfileset.h * *------------------------------------------------------------------------- */ #ifndef SHAREDFILESET_H #define SHAREDFILESET_H #include "storage/dsm.h" #include "storage/fd.h" #include "storage/fileset.h" #include "storage/spin.h" /* * A set of temporary files that can be shared by multiple backends. */ typedef struct SharedFileSet { FileSet fs; slock_t mutex; /* mutex protecting the reference count */ int refcnt; /* number of attached backends */ } SharedFileSet; extern void SharedFileSetInit(SharedFileSet *fileset, dsm_segment *seg); extern void SharedFileSetAttach(SharedFileSet *fileset, dsm_segment *seg); extern void SharedFileSetDeleteAll(SharedFileSet *fileset); #endif