init

db_include/postmaster/postmaster.h

@@ -0,0 +1,78 @@
+/*-------------------------------------------------------------------------
+ *
+ * postmaster.h
+ *	  Exports from postmaster/postmaster.c.
+ *
+ * Portions Copyright (c) 1996-2021, 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 bool EnableSSL;
+extern int	ReservedBackends;
+extern PGDLLIMPORT int PostPortNumber;
+extern int	Unix_socket_permissions;
+extern char *Unix_socket_group;
+extern char *Unix_socket_directories;
+extern char *ListenAddresses;
+extern bool ClientAuthInProgress;
+extern int	PreAuthDelay;
+extern int	AuthenticationTimeout;
+extern bool Log_connections;
+extern bool log_hostname;
+extern bool enable_bonjour;
+extern char *bonjour_name;
+extern bool restart_after_crash;
+extern bool remove_temp_files_after_crash;
+
+#ifdef WIN32
+extern HANDLE PostmasterHandle;
+#else
+extern 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 */