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b27644bade
Our maintenance of typedefs.list has been a little haphazard (and apparently we can't alphabetize worth a darn). Replace the file with the authoritative list from our buildfarm, and run pgindent using that. I also updated the additions/exclusions lists in pgindent where necessary to keep pgindent from messing things up significantly. Notably, now that regex_t and some related names are macros not real typedefs, we have to whitelist them explicitly. The exclusions list has also drifted noticeably, presumably due to changes of system headers on the buildfarm animals that contribute to the list. Unlike in prior years, I've not manually added typedef names that are missing from the buildfarm's list because they are not used to declare any variables or fields. So there are a few places where the typedef declaration itself is formatted worse than before, e.g. typedef enum IoMethod. I could preserve the names that were manually added to the list previously, but I'd really prefer to find a less manual way of dealing with these cases. A quick grep finds about 75 such symbols, most of which have never gotten any special treatment. Per discussion among pgsql-release, doing this now seems appropriate even though we're still a week or two away from making the v18 branch.
123 lines
3.5 KiB
C
123 lines
3.5 KiB
C
/*-------------------------------------------------------------------------
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*
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* backend_startup.h
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* prototypes for backend_startup.c.
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*
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*
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* Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/tcop/backend_startup.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef BACKEND_STARTUP_H
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#define BACKEND_STARTUP_H
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#include "utils/timestamp.h"
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/* GUCs */
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extern PGDLLIMPORT bool Trace_connection_negotiation;
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extern PGDLLIMPORT uint32 log_connections;
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extern PGDLLIMPORT char *log_connections_string;
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/* Other globals */
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extern PGDLLIMPORT struct ConnectionTiming conn_timing;
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/*
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* CAC_state is passed from postmaster to the backend process, to indicate
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* whether the connection should be accepted, or if the process should just
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* send an error to the client and close the connection. Note that the
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* connection can fail for various reasons even if postmaster passed CAC_OK.
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*/
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typedef enum CAC_state
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{
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CAC_OK,
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CAC_STARTUP,
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CAC_SHUTDOWN,
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CAC_RECOVERY,
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CAC_NOTHOTSTANDBY,
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CAC_TOOMANY,
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} CAC_state;
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/* Information passed from postmaster to backend process in 'startup_data' */
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typedef struct BackendStartupData
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{
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CAC_state canAcceptConnections;
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/*
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* Time at which the connection client socket is created. Only used for
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* client and wal sender connections.
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*/
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TimestampTz socket_created;
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/*
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* Time at which the postmaster initiates process creation -- either
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* through fork or otherwise. Only used for client and wal sender
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* connections.
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*/
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TimestampTz fork_started;
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} BackendStartupData;
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/*
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* Granular control over which messages to log for the log_connections GUC.
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*
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* RECEIPT, AUTHENTICATION, AUTHORIZATION, and SETUP_DURATIONS are different
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* aspects of connection establishment and backend setup for which we may emit
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* a log message.
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*
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* ALL is a convenience alias equivalent to all of the above aspects.
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*
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* ON is backwards compatibility alias for the connection aspects that were
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* logged in Postgres versions < 18.
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*/
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typedef enum LogConnectionOption
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{
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LOG_CONNECTION_RECEIPT = (1 << 0),
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LOG_CONNECTION_AUTHENTICATION = (1 << 1),
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LOG_CONNECTION_AUTHORIZATION = (1 << 2),
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LOG_CONNECTION_SETUP_DURATIONS = (1 << 3),
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LOG_CONNECTION_ON =
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LOG_CONNECTION_RECEIPT |
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LOG_CONNECTION_AUTHENTICATION |
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LOG_CONNECTION_AUTHORIZATION,
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LOG_CONNECTION_ALL =
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LOG_CONNECTION_RECEIPT |
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LOG_CONNECTION_AUTHENTICATION |
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LOG_CONNECTION_AUTHORIZATION |
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LOG_CONNECTION_SETUP_DURATIONS,
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} LogConnectionOption;
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/*
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* A collection of timings of various stages of connection establishment and
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* setup for client backends and WAL senders.
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*
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* Used to emit the setup_durations log message for the log_connections GUC.
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*/
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typedef struct ConnectionTiming
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{
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/*
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* The time at which the client socket is created and the time at which
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* the connection is fully set up and first ready for query. Together
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* these represent the total connection establishment and setup time.
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*/
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TimestampTz socket_create;
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TimestampTz ready_for_use;
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/* Time at which process creation was initiated */
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TimestampTz fork_start;
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/* Time at which process creation was completed */
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TimestampTz fork_end;
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/* Time at which authentication started */
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TimestampTz auth_start;
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/* Time at which authentication was finished */
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TimestampTz auth_end;
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} ConnectionTiming;
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pg_noreturn extern void BackendMain(const void *startup_data, size_t startup_data_len);
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#endif /* BACKEND_STARTUP_H */
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