539 lines
15 KiB
C
539 lines
15 KiB
C
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/* the purpose of this file is to reduce the use of #ifdef's through
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* the code base by those porting the software, and to facilitate the
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* eventual use of autoconf to build the server
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*/
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#ifndef CONFIG_H
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#define CONFIG_H
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/*
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* Default runtime limit on number of backend server processes per postmaster;
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* this is just the default setting for the postmaster's -N switch.
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* (Actual value is set by configure script.)
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*/
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#undef DEF_MAXBACKENDS
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/*
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* Hard limit on number of backend server processes per postmaster.
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* Increasing this costs about 32 bytes per process slot as of v 6.5.
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*/
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#define MAXBACKENDS (DEF_MAXBACKENDS > 1024 ? DEF_MAXBACKENDS : 1024)
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/*
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* Default number of buffers in shared buffer pool (each of size BLCKSZ).
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* This is just the default setting for the postmaster's -B switch.
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* Perhaps it ought to be configurable from a configure switch.
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* NOTE: default setting corresponds to the minimum number of buffers
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* that postmaster.c will allow for the default MaxBackends value.
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*/
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#define DEF_NBUFFERS (DEF_MAXBACKENDS > 8 ? DEF_MAXBACKENDS * 2 : 16)
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/*
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* Size of a disk block --- currently, this limits the size of a tuple.
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* You can set it bigger if you need bigger tuples.
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*/
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/* currently must be <= 32k bjm */
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#define BLCKSZ 8192
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/*
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* RELSEG_SIZE is the maximum number of blocks allowed in one disk file.
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* Thus, the maximum size of a single file is RELSEG_SIZE * BLCKSZ;
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* relations bigger than that are divided into multiple files.
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*
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* CAUTION: RELSEG_SIZE * BLCKSZ must be less than your OS' limit on file
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* size. This is typically 2Gb or 4Gb in a 32-bit operating system. By
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* default, we make the limit 1Gb to avoid any possible integer-overflow
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* problems within the OS. A limit smaller than necessary only means we
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* divide a large relation into more chunks than necessary, so it seems
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* best to err in the direction of a small limit. (Besides, a power-of-2
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* value saves a few cycles in md.c.)
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*
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* CAUTION: you had best do an initdb if you change either BLCKSZ or
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* RELSEG_SIZE.
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*/
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#define RELSEG_SIZE (0x40000000 / BLCKSZ)
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/* Set to 1 if you want to USE_LOCALE */
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#undef USE_LOCALE
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/* Set to 1 if you want CYR_RECODE (cyrillic recode) */
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#undef CYR_RECODE
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/* Set to 1 if you want to use multibyte characters */
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#undef MULTIBYTE
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/* Set to 1 if you want to Enable ASSERT CHECKING */
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#undef USE_ASSERT_CHECKING
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/*
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* DEF_PGPORT is the TCP port number on which the Postmaster listens by
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* default. This can be overriden by command options, environment variables,
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* and the postconfig hook. (set by configure script)
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*/
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#undef DEF_PGPORT
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/*
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* If you do not plan to use Host based authentication,
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* comment out the following line (set by build script)
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*/
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#undef HBA
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/*
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* As soon as the backend blocks on a lock, it waits this number of seconds
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* before checking for a deadlock.
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* We don't check for deadlocks just before sleeping because a deadlock is
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* a rare event, and checking is an expensive operation.
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*/
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#define DEADLOCK_CHECK_TIMER 1
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/*
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* This flag enables the use of indexes in plans generated for function
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* executions which normally are always executed with sequential scans.
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*/
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#define INDEXSCAN_PATCH
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/*
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* Maximum number of columns in an index and maximum number of arguments
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* to a function. They must be the same value.
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*
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* The minimum value is 9 (btree index creation has a 9-argument function).
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*
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* There is no maximum value, though if you want to pass more than 32
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* arguments to a function, you will have to modify
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* pgsql/src/backend/utils/fmgr/fmgr.c and add additional entries
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* to the 'case' statement for the additional arguments.
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*/
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#define INDEX_MAX_KEYS 16
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#define FUNC_MAX_ARGS INDEX_MAX_KEYS
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/*
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* Enables debugging print statements in the date/time support routines.
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* Particularly useful for porting to a new platform/OS combination.
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*/
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/* #define DATEDEBUG */
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/*
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* defining unsafe floats's will make float4 and float8
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* ops faster at the cost of safety, of course!
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*/
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/* #define UNSAFE_FLOATS */
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/*
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* There is a bug in the function executor. The backend crashes while trying to
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* execute an sql function containing an utility command (create, notify, ...).
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* The bug is part in the planner, which returns a number of plans different
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* than the number of commands if there are utility commands in the query, and
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* in part in the function executor which assumes that all commands are normal
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* query commands and causes a SIGSEGV trying to execute commands without plan.
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*/
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#define FUNC_UTIL_PATCH
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/*
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* Define this to make libpgtcl's "pg_result -assign" command process C-style
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* backslash sequences in returned tuple data and convert Postgres array
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* attributes into Tcl lists. CAUTION: this conversion is *wrong* unless
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* you install the routines in contrib/string/string_io to make the backend
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* produce C-style backslash sequences in the first place.
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*/
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/* #define TCL_ARRAYS */
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/*
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* User locks are handled totally on the application side as long term
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* cooperative locks which extend beyond the normal transaction boundaries.
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* Their purpose is to indicate to an application that someone is `working'
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* on an item. Define this flag to enable user locks. You will need the
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* loadable module user-locks.c to use this feature.
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*/
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#define USER_LOCKS
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/* Genetic Query Optimization (GEQO):
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*
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* The GEQO module in PostgreSQL is intended for the solution of the
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* query optimization problem by means of a Genetic Algorithm (GA).
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* It allows the handling of large JOIN queries through non-exhaustive
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* search.
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* For further information see README.GEQO <utesch@aut.tu-freiberg.de>.
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*/
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#define GEQO
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/*
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* Define this if you want psql to _always_ ask for a username and a password
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* for password authentication.
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*/
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/* #define PSQL_ALWAYS_GET_PASSWORDS */
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/*
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* Define this if you want to allow the lo_import and lo_export SQL functions
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* to be executed by ordinary users. By default these functions are only
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* available to the Postgres superuser. CAUTION: these functions are
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* SECURITY HOLES since they can read and write any file that the Postgres
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* backend has permission to access. If you turn this on, don't say we
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* didn't warn you.
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*/
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/* #define ALLOW_DANGEROUS_LO_FUNCTIONS */
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/*
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* Use btree bulkload code:
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* this code is moderately slow (~10% slower) compared to the regular
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* btree (insertion) build code on sorted or well-clustered data. on
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* random data, however, the insertion build code is unusable -- the
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* difference on a 60MB heap is a factor of 15 because the random
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* probes into the btree thrash the buffer pool.
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*
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* Great thanks to Paul M. Aoki (aoki@CS.Berkeley.EDU)
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*/
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#define FASTBUILD /* access/nbtree/nbtsort.c */
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/*
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* TBL_FREE_CMD_MEMORY: free memory allocated for an user query inside
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* transaction block after this query is done.
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*/
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#define TBL_FREE_CMD_MEMORY
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/*
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* ELOG_TIMESTAMPS: adds a timestamp with the following format to elog
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* messages: yymmdd.hh:mm:ss.mmm [pid] message
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*/
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/* #define ELOG_TIMESTAMPS */
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/*
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* USE_SYSLOG: use syslog for elog and error messages printed by tprintf
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* and eprintf. This must be activated with the syslog flag in pg_options
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* (syslog=0 for stdio, syslog=1 for stdio+syslog, syslog=2 for syslog).
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* For information see backend/utils/misc/trace.c (Massimo Dal Zotto).
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*/
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/* #define USE_SYSLOG */
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/* Debug #defines */
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/* #define IPORTAL_DEBUG */
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/* #define HEAPDEBUGALL */
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/* #define ISTRATDEBUG */
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/* #define FASTBUILD_DEBUG */
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/* #define ACLDEBUG */
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/* #define RTDEBUG */
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/* #define GISTDEBUG */
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/* #define OMIT_PARTIAL_INDEX */
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/* #define NO_BUFFERISVALID */
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/* #define NO_SECURITY */
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/* #define OLD_REWRITE */
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/*
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* MAXPGPATH: standard size of a pathname buffer in Postgres (hence,
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* maximum usable pathname length is one less).
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*
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* We'd use a standard system header symbol for this, if there weren't
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* so many to choose from: MAXPATHLEN, _POSIX_PATH_MAX, MAX_PATH, PATH_MAX
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* are all defined by different "standards", and often have different
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* values on the same platform! So we just punt and use a reasonably
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* generous setting here.
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*/
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#define MAXPGPATH 1024
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/*
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*------------------------------------------------------------------------
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* The following is set using configure.
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*------------------------------------------------------------------------
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*/
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/* Set to 1 if you have <arpa/inet.h> */
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#undef HAVE_ARPA_INET_H
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/* Set to 1 if you have <crypt.h> */
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#undef HAVE_CRYPT_H
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/* Set to 1 if you have <dld.h> */
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#undef HAVE_DLD_H
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/* Set to 1 if you have <endian.h> */
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#undef HAVE_ENDIAN_H
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/* Set to 1 if you have <float.h> */
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#undef HAVE_FLOAT_H
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/* Set to 1 if you have <fp_class.h> */
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#undef HAVE_FP_CLASS_H
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/* Set to 1 if you have <getopt.h> */
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#undef HAVE_GETOPT_H
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/* Set to 1 if you have <history.h> */
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#undef HAVE_HISTORY_H
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/* Set to 1 if you have <ieeefp.h> */
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#undef HAVE_IEEEFP_H
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/* Set to 1 if you have <limits.h> */
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#undef HAVE_LIMITS_H
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/* Set to 1 if you have <netdb.h> */
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#undef HAVE_NETDB_H
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/* Set to 1 if you have <netinet/in.h> */
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#undef HAVE_NETINET_IN_H
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/* Set to 1 if you have <readline.h> */
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#undef HAVE_READLINE_H
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/* Set to 1 if you have <readline/history.h> */
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#undef HAVE_READLINE_HISTORY_H
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/* Set to 1 if you have <readline/readline.h> */
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#undef HAVE_READLINE_READLINE_H
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/* Set to 1 if you have <sys/select.h> */
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#undef HAVE_SYS_SELECT_H
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/* Set to 1 if you have <termios.h> */
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#undef HAVE_TERMIOS_H
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/* Set to 1 if you have <values.h> */
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#undef HAVE_VALUES_H
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/* Define if you have the ANSI C header files. */
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#undef STDC_HEADERS
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/* default path for the location of the odbcinst.ini file */
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#undef ODBCINST
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/* Define if you have the stricmp function. */
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#undef HAVE_STRICMP
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/* Set to 1 if you have libreadline and it includes history functions */
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#undef HAVE_HISTORY_IN_READLINE
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/*
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* Block of parameters for the ODBC code.
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*/
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/* Set to 1 if you have <pwd.h> */
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#undef HAVE_PWD_H
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/* Define if you have the <sys/param.h> header file. */
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#undef HAVE_SYS_PARAM_H
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/* Define if you have the dl library (-ldl). */
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#undef HAVE_LIBDL
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/*
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* End parameters for ODBC code.
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*/
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/* Set to 1 if you gettimeofday(a,b) vs gettimeofday(a) */
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#undef HAVE_GETTIMEOFDAY_2_ARGS
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#ifndef HAVE_GETTIMEOFDAY_2_ARGS
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# define gettimeofday(a,b) gettimeofday(a)
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#endif
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/* Set to 1 if you have snprintf() in the C library */
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#undef HAVE_SNPRINTF
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/* Set to 1 if your standard system headers declare snprintf() */
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#undef HAVE_SNPRINTF_DECL
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/* Set to 1 if you have vsnprintf() in the C library */
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#undef HAVE_VSNPRINTF
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/* Set to 1 if your standard system headers declare vsnprintf() */
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#undef HAVE_VSNPRINTF_DECL
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/* Set to 1 if you have strerror() */
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#undef HAVE_STRERROR
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/*
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* Set to 1 if you have isinf().
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* These are all related to port/isinf.c
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*/
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#undef HAVE_FPCLASS
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#undef HAVE_FP_CLASS
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#undef HAVE_FP_CLASS_H
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#undef HAVE_FP_CLASS_D
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#undef HAVE_CLASS
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#undef HAVE_ISINF
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#ifndef HAVE_ISINF
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int isinf(double x);
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#endif
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/* Set to 1 if you have gethostname() */
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#undef HAVE_GETHOSTNAME
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#ifndef HAVE_GETHOSTNAME
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int gethostname(char *name, int namelen);
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#endif
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/* Set to 1 if struct tm has a tm_zone member */
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#undef HAVE_TM_ZONE
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/* Set to 1 if you have int timezone.
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* NOTE: if both tm_zone and a global timezone variable exist,
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* using the tm_zone field should probably be preferred,
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* since global variables are inherently not thread-safe.
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*/
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#undef HAVE_INT_TIMEZONE
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/* Set to 1 if you have cbrt() */
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#undef HAVE_CBRT
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/* Set to 1 if you have inet_aton() */
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#undef HAVE_INET_ATON
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#ifndef HAVE_INET_ATON
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# ifdef HAVE_ARPA_INET_H
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# ifdef HAVE_NETINET_IN_H
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# include <sys/types.h>
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# include <netinet/in.h>
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# endif
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# include <arpa/inet.h>
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# endif
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extern int inet_aton(const char *cp, struct in_addr * addr);
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#endif
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/* Set to 1 if you have fcvt() */
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#undef HAVE_FCVT
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/* Set to 1 if you have rint() */
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#undef HAVE_RINT
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/* Set to 1 if you have finite() */
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#undef HAVE_FINITE
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/* Set to 1 if you have memmove() */
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#undef HAVE_MEMMOVE
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/* Set to 1 if you have sigsetjmp() */
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#undef HAVE_SIGSETJMP
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/* Set to 1 if you have sysconf() */
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#undef HAVE_SYSCONF
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/* Set to 1 if you have getrusage() */
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#undef HAVE_GETRUSAGE
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/* Set to 1 if you have waitpid() */
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#undef HAVE_WAITPID
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/* Set to 1 if you have setsid() */
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#undef HAVE_SETSID
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/* Set to 1 if you have sigprocmask() */
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#undef HAVE_SIGPROCMASK
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/* Set to 1 if you have sigprocmask() */
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#undef HAVE_STRCASECMP
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#ifndef HAVE_STRCASECMP
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extern int strcasecmp(char *s1, char *s2);
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#endif
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/* Set to 1 if you have strtol() */
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#undef HAVE_STRTOL
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/* Set to 1 if you have strtoul() */
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#undef HAVE_STRTOUL
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/* Set to 1 if you have strdup() */
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#undef HAVE_STRDUP
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#ifndef HAVE_STRDUP
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extern char *strdup(char const *);
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#endif
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/* Set to 1 if you have random() */
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#undef HAVE_RANDOM
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#ifndef HAVE_RANDOM
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extern long random(void);
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#endif
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/* Set to 1 if you have srandom() */
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#undef HAVE_SRANDOM
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#ifndef HAVE_SRANDOM
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extern void srandom(unsigned int seed);
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#endif
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/* Set to 1 if you have libreadline.a */
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#undef HAVE_LIBREADLINE
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/* Set to 1 if you have libhistory.a */
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#undef HAVE_LIBHISTORY
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/* Set to 1 if your libreadline defines rl_completion_append_character */
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#undef HAVE_RL_COMPLETION_APPEND_CHARACTER
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/* Set to 1 if you have getopt_long() (GNU long options) */
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#undef HAVE_GETOPT_LONG
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/*
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* On architectures for which we have not implemented spinlocks (or
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* cannot do so), we use System V semaphores. We also use them for
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* long locks. For some reason union semun is never defined in the
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* System V header files so we must do it ourselves.
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*/
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/* Set to 1 if you have union semun */
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#undef HAVE_UNION_SEMUN
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/* Set to 1 if you have F_SETLK option for fcntl() */
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#undef HAVE_FCNTL_SETLK
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/* Set to 1 if type "long int" works and is 64 bits */
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#undef HAVE_LONG_INT_64
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/* Set to 1 if type "long long int" works and is 64 bits */
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#undef HAVE_LONG_LONG_INT_64
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/* Define this as the appropriate snprintf format for 64-bit ints, if any */
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#undef INT64_FORMAT
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/* These must be defined as the alignment requirement (NOT the size) of
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* each of the basic C data types (except char, which we assume has align 1).
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* MAXIMUM_ALIGNOF is the largest alignment requirement for any C data type.
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* ALIGNOF_LONG_LONG_INT need only be defined if HAVE_LONG_LONG_INT_64 is.
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*/
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#undef ALIGNOF_SHORT
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#undef ALIGNOF_INT
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#undef ALIGNOF_LONG
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#undef ALIGNOF_LONG_LONG_INT
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#undef ALIGNOF_DOUBLE
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#undef MAXIMUM_ALIGNOF
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/* Define const as empty if your compiler doesn't grok const. */
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#undef const
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/* Define as your compiler's spelling of "inline", or empty if no inline. */
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#undef inline
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/* Define signed as empty if your compiler doesn't grok "signed char" etc */
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#undef signed
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/* Define volatile as empty if your compiler doesn't grok volatile. */
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#undef volatile
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/* Define if your cpp understands the ANSI stringizing operators in macros */
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#undef HAVE_STRINGIZE
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/* Define as the base type of the last arg to accept */
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#undef SOCKET_SIZE_TYPE
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/* Define if POSIX signal interface is available */
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#undef USE_POSIX_SIGNALS
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/*
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* Pull in OS-specific declarations (using link created by configure)
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*/
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#include "os.h"
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/*
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* The following is used as the arg list for signal handlers. Any ports
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* that take something other than an int argument should change this in
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* the port specific makefile. Note that variable names are required
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* because it is used in both the prototypes as well as the definitions.
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* Note also the long name. We expect that this won't collide with
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* other names causing compiler warnings.
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*/
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#ifndef SIGNAL_ARGS
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# define SIGNAL_ARGS int postgres_signal_arg
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#endif
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#endif /* CONFIG_H */
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