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-rw-r--r--contrib/pg_upgrade/server.c350
1 files changed, 0 insertions, 350 deletions
diff --git a/contrib/pg_upgrade/server.c b/contrib/pg_upgrade/server.c
deleted file mode 100644
index c5f66f09632..00000000000
--- a/contrib/pg_upgrade/server.c
+++ /dev/null
@@ -1,350 +0,0 @@
-/*
- * server.c
- *
- * database server functions
- *
- * Copyright (c) 2010-2015, PostgreSQL Global Development Group
- * contrib/pg_upgrade/server.c
- */
-
-#include "postgres_fe.h"
-
-#include "pg_upgrade.h"
-
-
-static PGconn *get_db_conn(ClusterInfo *cluster, const char *db_name);
-
-
-/*
- * connectToServer()
- *
- * Connects to the desired database on the designated server.
- * If the connection attempt fails, this function logs an error
- * message and calls exit() to kill the program.
- */
-PGconn *
-connectToServer(ClusterInfo *cluster, const char *db_name)
-{
- PGconn *conn = get_db_conn(cluster, db_name);
-
- if (conn == NULL || PQstatus(conn) != CONNECTION_OK)
- {
- pg_log(PG_REPORT, "connection to database failed: %s\n",
- PQerrorMessage(conn));
-
- if (conn)
- PQfinish(conn);
-
- printf("Failure, exiting\n");
- exit(1);
- }
-
- return conn;
-}
-
-
-/*
- * get_db_conn()
- *
- * get database connection, using named database + standard params for cluster
- */
-static PGconn *
-get_db_conn(ClusterInfo *cluster, const char *db_name)
-{
- char conn_opts[2 * NAMEDATALEN + MAXPGPATH + 100];
-
- if (cluster->sockdir)
- snprintf(conn_opts, sizeof(conn_opts),
- "dbname = '%s' user = '%s' host = '%s' port = %d",
- db_name, os_info.user, cluster->sockdir, cluster->port);
- else
- snprintf(conn_opts, sizeof(conn_opts),
- "dbname = '%s' user = '%s' port = %d",
- db_name, os_info.user, cluster->port);
-
- return PQconnectdb(conn_opts);
-}
-
-
-/*
- * cluster_conn_opts()
- *
- * Return standard command-line options for connecting to this cluster when
- * using psql, pg_dump, etc. Ideally this would match what get_db_conn()
- * sets, but the utilities we need aren't very consistent about the treatment
- * of database name options, so we leave that out.
- *
- * Note result is in static storage, so use it right away.
- */
-char *
-cluster_conn_opts(ClusterInfo *cluster)
-{
- static char conn_opts[MAXPGPATH + NAMEDATALEN + 100];
-
- if (cluster->sockdir)
- snprintf(conn_opts, sizeof(conn_opts),
- "--host \"%s\" --port %d --username \"%s\"",
- cluster->sockdir, cluster->port, os_info.user);
- else
- snprintf(conn_opts, sizeof(conn_opts),
- "--port %d --username \"%s\"",
- cluster->port, os_info.user);
-
- return conn_opts;
-}
-
-
-/*
- * executeQueryOrDie()
- *
- * Formats a query string from the given arguments and executes the
- * resulting query. If the query fails, this function logs an error
- * message and calls exit() to kill the program.
- */
-PGresult *
-executeQueryOrDie(PGconn *conn, const char *fmt,...)
-{
- static char query[QUERY_ALLOC];
- va_list args;
- PGresult *result;
- ExecStatusType status;
-
- va_start(args, fmt);
- vsnprintf(query, sizeof(query), fmt, args);
- va_end(args);
-
- pg_log(PG_VERBOSE, "executing: %s\n", query);
- result = PQexec(conn, query);
- status = PQresultStatus(result);
-
- if ((status != PGRES_TUPLES_OK) && (status != PGRES_COMMAND_OK))
- {
- pg_log(PG_REPORT, "SQL command failed\n%s\n%s\n", query,
- PQerrorMessage(conn));
- PQclear(result);
- PQfinish(conn);
- printf("Failure, exiting\n");
- exit(1);
- }
- else
- return result;
-}
-
-
-/*
- * get_major_server_version()
- *
- * gets the version (in unsigned int form) for the given datadir. Assumes
- * that datadir is an absolute path to a valid pgdata directory. The version
- * is retrieved by reading the PG_VERSION file.
- */
-uint32
-get_major_server_version(ClusterInfo *cluster)
-{
- FILE *version_fd;
- char ver_filename[MAXPGPATH];
- int integer_version = 0;
- int fractional_version = 0;
-
- snprintf(ver_filename, sizeof(ver_filename), "%s/PG_VERSION",
- cluster->pgdata);
- if ((version_fd = fopen(ver_filename, "r")) == NULL)
- pg_fatal("could not open version file: %s\n", ver_filename);
-
- if (fscanf(version_fd, "%63s", cluster->major_version_str) == 0 ||
- sscanf(cluster->major_version_str, "%d.%d", &integer_version,
- &fractional_version) != 2)
- pg_fatal("could not get version from %s\n", cluster->pgdata);
-
- fclose(version_fd);
-
- return (100 * integer_version + fractional_version) * 100;
-}
-
-
-static void
-stop_postmaster_atexit(void)
-{
- stop_postmaster(true);
-}
-
-
-bool
-start_postmaster(ClusterInfo *cluster, bool throw_error)
-{
- char cmd[MAXPGPATH * 4 + 1000];
- PGconn *conn;
- bool exit_hook_registered = false;
- bool pg_ctl_return = false;
- char socket_string[MAXPGPATH + 200];
-
- if (!exit_hook_registered)
- {
- atexit(stop_postmaster_atexit);
- exit_hook_registered = true;
- }
-
- socket_string[0] = '\0';
-
-#ifdef HAVE_UNIX_SOCKETS
- /* prevent TCP/IP connections, restrict socket access */
- strcat(socket_string,
- " -c listen_addresses='' -c unix_socket_permissions=0700");
-
- /* Have a sockdir? Tell the postmaster. */
- if (cluster->sockdir)
- snprintf(socket_string + strlen(socket_string),
- sizeof(socket_string) - strlen(socket_string),
- " -c %s='%s'",
- (GET_MAJOR_VERSION(cluster->major_version) < 903) ?
- "unix_socket_directory" : "unix_socket_directories",
- cluster->sockdir);
-#endif
-
- /*
- * Since PG 9.1, we have used -b to disable autovacuum. For earlier
- * releases, setting autovacuum=off disables cleanup vacuum and analyze,
- * but freeze vacuums can still happen, so we set autovacuum_freeze_max_age
- * to its maximum. (autovacuum_multixact_freeze_max_age was introduced
- * after 9.1, so there is no need to set that.) We assume all datfrozenxid
- * and relfrozenxid values are less than a gap of 2000000000 from the current
- * xid counter, so autovacuum will not touch them.
- *
- * Turn off durability requirements to improve object creation speed, and
- * we only modify the new cluster, so only use it there. If there is a
- * crash, the new cluster has to be recreated anyway. fsync=off is a big
- * win on ext4.
- */
- snprintf(cmd, sizeof(cmd),
- "\"%s/pg_ctl\" -w -l \"%s\" -D \"%s\" -o \"-p %d%s%s %s%s\" start",
- cluster->bindir, SERVER_LOG_FILE, cluster->pgconfig, cluster->port,
- (cluster->controldata.cat_ver >=
- BINARY_UPGRADE_SERVER_FLAG_CAT_VER) ? " -b" :
- " -c autovacuum=off -c autovacuum_freeze_max_age=2000000000",
- (cluster == &new_cluster) ?
- " -c synchronous_commit=off -c fsync=off -c full_page_writes=off" : "",
- cluster->pgopts ? cluster->pgopts : "", socket_string);
-
- /*
- * Don't throw an error right away, let connecting throw the error because
- * it might supply a reason for the failure.
- */
- pg_ctl_return = exec_prog(SERVER_START_LOG_FILE,
- /* pass both file names if they differ */
- (strcmp(SERVER_LOG_FILE,
- SERVER_START_LOG_FILE) != 0) ?
- SERVER_LOG_FILE : NULL,
- false,
- "%s", cmd);
-
- /* Did it fail and we are just testing if the server could be started? */
- if (!pg_ctl_return && !throw_error)
- return false;
-
- /*
- * We set this here to make sure atexit() shuts down the server, but only
- * if we started the server successfully. We do it before checking for
- * connectivity in case the server started but there is a connectivity
- * failure. If pg_ctl did not return success, we will exit below.
- *
- * Pre-9.1 servers do not have PQping(), so we could be leaving the server
- * running if authentication was misconfigured, so someday we might went
- * to be more aggressive about doing server shutdowns even if pg_ctl
- * fails, but now (2013-08-14) it seems prudent to be cautious. We don't
- * want to shutdown a server that might have been accidentally started
- * during the upgrade.
- */
- if (pg_ctl_return)
- os_info.running_cluster = cluster;
-
- /*
- * pg_ctl -w might have failed because the server couldn't be started, or
- * there might have been a connection problem in _checking_ if the server
- * has started. Therefore, even if pg_ctl failed, we continue and test
- * for connectivity in case we get a connection reason for the failure.
- */
- if ((conn = get_db_conn(cluster, "template1")) == NULL ||
- PQstatus(conn) != CONNECTION_OK)
- {
- pg_log(PG_REPORT, "\nconnection to database failed: %s\n",
- PQerrorMessage(conn));
- if (conn)
- PQfinish(conn);
- pg_fatal("could not connect to %s postmaster started with the command:\n"
- "%s\n",
- CLUSTER_NAME(cluster), cmd);
- }
- PQfinish(conn);
-
- /*
- * If pg_ctl failed, and the connection didn't fail, and throw_error is
- * enabled, fail now. This could happen if the server was already
- * running.
- */
- if (!pg_ctl_return)
- pg_fatal("pg_ctl failed to start the %s server, or connection failed\n",
- CLUSTER_NAME(cluster));
-
- return true;
-}
-
-
-void
-stop_postmaster(bool fast)
-{
- ClusterInfo *cluster;
-
- if (os_info.running_cluster == &old_cluster)
- cluster = &old_cluster;
- else if (os_info.running_cluster == &new_cluster)
- cluster = &new_cluster;
- else
- return; /* no cluster running */
-
- exec_prog(SERVER_STOP_LOG_FILE, NULL, !fast,
- "\"%s/pg_ctl\" -w -D \"%s\" -o \"%s\" %s stop",
- cluster->bindir, cluster->pgconfig,
- cluster->pgopts ? cluster->pgopts : "",
- fast ? "-m fast" : "");
-
- os_info.running_cluster = NULL;
-}
-
-
-/*
- * check_pghost_envvar()
- *
- * Tests that PGHOST does not point to a non-local server
- */
-void
-check_pghost_envvar(void)
-{
- PQconninfoOption *option;
- PQconninfoOption *start;
-
- /* Get valid libpq env vars from the PQconndefaults function */
-
- start = PQconndefaults();
-
- if (!start)
- pg_fatal("out of memory\n");
-
- for (option = start; option->keyword != NULL; option++)
- {
- if (option->envvar && (strcmp(option->envvar, "PGHOST") == 0 ||
- strcmp(option->envvar, "PGHOSTADDR") == 0))
- {
- const char *value = getenv(option->envvar);
-
- if (value && strlen(value) > 0 &&
- /* check for 'local' host values */
- (strcmp(value, "localhost") != 0 && strcmp(value, "127.0.0.1") != 0 &&
- strcmp(value, "::1") != 0 && value[0] != '/'))
- pg_fatal("libpq environment variable %s has a non-local server value: %s\n",
- option->envvar, value);
- }
- }
-
- /* Free the memory that libpq allocated on our behalf */
- PQconninfoFree(start);
-}
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