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Output a command, which when excuted on the local node (promotion candidate) will attempt to remotely connect to the demotion candidate and display both the connection message encountered and the connection parameters used. This is useful for corner-cases where the connection normally succeeds if a particular environment variable (e.g. PGPORT) is normally set, but is not set in the environment where SSH is executed.
33 lines
1.4 KiB
C
33 lines
1.4 KiB
C
/*
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* sysutils.h
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* Copyright (c) 2ndQuadrant, 2010-2020
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _SYSUTILS_H_
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#define _SYSUTILS_H_
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extern bool local_command(const char *command, PQExpBufferData *outputbuf);
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extern bool local_command_return_value(const char *command, PQExpBufferData *outputbuf, int *return_value);
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extern bool local_command_simple(const char *command, PQExpBufferData *outputbuf);
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extern bool remote_command(const char *host, const char *user, const char *command, const char *ssh_options, PQExpBufferData *outputbuf);
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extern void make_remote_command(const char *host, const char *user, const char *command, const char *ssh_options, PQExpBufferData *ssh_command);
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extern pid_t disable_wal_receiver(PGconn *conn);
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extern pid_t enable_wal_receiver(PGconn *conn, bool wait_startup);
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#endif /* _SYSUTILS_H_ */
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