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Diffstat (limited to 'src/include/postmaster/postmaster.h')
| -rw-r--r-- | src/include/postmaster/postmaster.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/include/postmaster/postmaster.h b/src/include/postmaster/postmaster.h new file mode 100644 index 0000000..3b3889c --- /dev/null +++ b/src/include/postmaster/postmaster.h @@ -0,0 +1,81 @@ +/*------------------------------------------------------------------------- + * + * postmaster.h + * Exports from postmaster/postmaster.c. + * + * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/include/postmaster/postmaster.h + * + *------------------------------------------------------------------------- + */ +#ifndef _POSTMASTER_H +#define _POSTMASTER_H + +/* GUC options */ +extern PGDLLIMPORT bool EnableSSL; +extern PGDLLIMPORT int SuperuserReservedConnections; +extern PGDLLIMPORT int ReservedConnections; +extern PGDLLIMPORT int PostPortNumber; +extern PGDLLIMPORT int Unix_socket_permissions; +extern PGDLLIMPORT char *Unix_socket_group; +extern PGDLLIMPORT char *Unix_socket_directories; +extern PGDLLIMPORT char *ListenAddresses; +extern PGDLLIMPORT bool ClientAuthInProgress; +extern PGDLLIMPORT int PreAuthDelay; +extern PGDLLIMPORT int AuthenticationTimeout; +extern PGDLLIMPORT bool Log_connections; +extern PGDLLIMPORT bool log_hostname; +extern PGDLLIMPORT bool enable_bonjour; +extern PGDLLIMPORT char *bonjour_name; +extern PGDLLIMPORT bool restart_after_crash; +extern PGDLLIMPORT bool remove_temp_files_after_crash; +extern PGDLLIMPORT bool send_abort_for_crash; +extern PGDLLIMPORT bool send_abort_for_kill; + +#ifdef WIN32 +extern PGDLLIMPORT HANDLE PostmasterHandle; +#else +extern PGDLLIMPORT int postmaster_alive_fds[2]; + +/* + * Constants that represent which of postmaster_alive_fds is held by + * postmaster, and which is used in children to check for postmaster death. + */ +#define POSTMASTER_FD_WATCH 0 /* used in children to check for + * postmaster death */ +#define POSTMASTER_FD_OWN 1 /* kept open by postmaster only */ +#endif + +extern PGDLLIMPORT const char *progname; + +extern void PostmasterMain(int argc, char *argv[]) pg_attribute_noreturn(); +extern void ClosePostmasterPorts(bool am_syslogger); +extern void InitProcessGlobals(void); + +extern int MaxLivePostmasterChildren(void); + +extern bool PostmasterMarkPIDForWorkerNotify(int); + +#ifdef EXEC_BACKEND +extern pid_t postmaster_forkexec(int argc, char *argv[]); +extern void SubPostmasterMain(int argc, char *argv[]) pg_attribute_noreturn(); + +extern Size ShmemBackendArraySize(void); +extern void ShmemBackendArrayAllocation(void); +#endif + +/* + * Note: MAX_BACKENDS is limited to 2^18-1 because that's the width reserved + * for buffer references in buf_internals.h. This limitation could be lifted + * by using a 64bit state; but it's unlikely to be worthwhile as 2^18-1 + * backends exceed currently realistic configurations. Even if that limitation + * were removed, we still could not a) exceed 2^23-1 because inval.c stores + * the backend ID as a 3-byte signed integer, b) INT_MAX/4 because some places + * compute 4*MaxBackends without any overflow check. This is rechecked in the + * relevant GUC check hooks and in RegisterBackgroundWorker(). + */ +#define MAX_BACKENDS 0x3FFFF + +#endif /* _POSTMASTER_H */ |