42 lines
1.2 KiB
C
42 lines
1.2 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) 1996-2023, 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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/*
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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_NOTCONSISTENT,
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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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} BackendStartupData;
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extern void BackendMain(char *startup_data, size_t startup_data_len) pg_attribute_noreturn();
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#endif /* BACKEND_STARTUP_H */
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