| Server IP : 85.214.239.14 / Your IP : 18.218.219.11 Web Server : Apache/2.4.62 (Debian) System : Linux h2886529.stratoserver.net 4.9.0 #1 SMP Tue Jan 9 19:45:01 MSK 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.18 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : OFF | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : OFF Directory : /usr/include/postgresql/9.6/server/access/ |
Upload File : |
/*------------------------------------------------------------------------- * * visibilitymap.h * visibility map interface * * * Portions Copyright (c) 2007-2016, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/access/visibilitymap.h * *------------------------------------------------------------------------- */ #ifndef VISIBILITYMAP_H #define VISIBILITYMAP_H #include "access/xlogdefs.h" #include "storage/block.h" #include "storage/buf.h" #include "utils/relcache.h" /* Number of bits for one heap page */ #define BITS_PER_HEAPBLOCK 2 /* Flags for bit map */ #define VISIBILITYMAP_ALL_VISIBLE 0x01 #define VISIBILITYMAP_ALL_FROZEN 0x02 #define VISIBILITYMAP_VALID_BITS 0x03 /* OR of all valid * visibilitymap flags bits */ /* Macros for visibilitymap test */ #define VM_ALL_VISIBLE(r, b, v) \ ((visibilitymap_get_status((r), (b), (v)) & VISIBILITYMAP_ALL_VISIBLE) != 0) #define VM_ALL_FROZEN(r, b, v) \ ((visibilitymap_get_status((r), (b), (v)) & VISIBILITYMAP_ALL_FROZEN) != 0) extern bool visibilitymap_clear(Relation rel, BlockNumber heapBlk, Buffer vmbuf, uint8 flags); extern void visibilitymap_pin(Relation rel, BlockNumber heapBlk, Buffer *vmbuf); extern bool visibilitymap_pin_ok(BlockNumber heapBlk, Buffer vmbuf); extern void visibilitymap_set(Relation rel, BlockNumber heapBlk, Buffer heapBuf, XLogRecPtr recptr, Buffer vmBuf, TransactionId cutoff_xid, uint8 flags); extern uint8 visibilitymap_get_status(Relation rel, BlockNumber heapBlk, Buffer *vmbuf); extern void visibilitymap_count(Relation rel, BlockNumber *all_visible, BlockNumber *all_frozen); extern void visibilitymap_truncate(Relation rel, BlockNumber nheapblocks); #endif /* VISIBILITYMAP_H */