Header And Logo
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#include "postgres_fe.h"#include "pg_upgrade.h"
Go to the source code of this file.
Functions | |
| static PGconn * | get_db_conn (ClusterInfo *cluster, const char *db_name) |
| PGconn * | connectToServer (ClusterInfo *cluster, const char *db_name) |
| char * | cluster_conn_opts (ClusterInfo *cluster) |
| PGresult * | executeQueryOrDie (PGconn *conn, const char *fmt,...) |
| uint32 | get_major_server_version (ClusterInfo *cluster) |
| static void | stop_postmaster_atexit (void) |
| bool | start_postmaster (ClusterInfo *cluster, bool throw_error) |
| void | stop_postmaster (bool fast) |
| void | check_pghost_envvar (void) |
| void check_pghost_envvar | ( | void | ) |
Definition at line 295 of file server.c.
References _PQconninfoOption::envvar, _PQconninfoOption::keyword, PG_FATAL, pg_log(), PQconndefaults(), PQconninfoFree(), and value.
Referenced by setup().
{
PQconninfoOption *option;
PQconninfoOption *start;
/* Get valid libpq env vars from the PQconndefaults function */
start = PQconndefaults();
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_log(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);
}
| char* cluster_conn_opts | ( | ClusterInfo * | cluster | ) |
Definition at line 80 of file server.c.
References MAXPGPATH, NAMEDATALEN, os_info, ClusterInfo::port, snprintf(), ClusterInfo::sockdir, and OSInfo::user.
Referenced by create_new_objects(), generate_old_dump(), issue_warnings(), prepare_new_cluster(), and prepare_new_databases().
{
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;
}
| PGconn* connectToServer | ( | ClusterInfo * | cluster, | |
| const char * | db_name | |||
| ) |
Definition at line 26 of file server.c.
References conn, CONNECTION_OK, get_db_conn(), NULL, pg_log(), PG_REPORT, PQerrorMessage(), PQfinish(), and PQstatus().
Referenced by check_for_isn_and_int8_passing_mismatch(), check_for_prepared_transactions(), check_for_reg_data_type_usage(), check_is_super_user(), check_loadable_libraries(), get_db_infos(), get_loadable_libraries(), get_pg_database_relfilenode(), get_rel_infos(), get_tablespace_paths(), install_support_functions_in_new_db(), new_9_0_populate_pg_largeobject_metadata(), old_8_3_check_for_name_data_type_usage(), old_8_3_check_for_tsquery_usage(), old_8_3_check_ltree_usage(), old_8_3_create_sequence_script(), old_8_3_invalidate_bpchar_pattern_ops_indexes(), old_8_3_invalidate_hash_gin_indexes(), old_8_3_rebuild_tsvector_tables(), set_frozenxids(), set_locale_and_encoding(), and uninstall_support_functions_from_new_cluster().
{
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;
}
Definition at line 105 of file server.c.
References pg_log(), PG_REPORT, PG_VERBOSE, PGRES_COMMAND_OK, PGRES_TUPLES_OK, PQclear(), PQerrorMessage(), PQexec(), PQfinish(), PQresultStatus(), and vsnprintf().
{
static char command[8192];
va_list args;
PGresult *result;
ExecStatusType status;
va_start(args, fmt);
vsnprintf(command, sizeof(command), fmt, args);
va_end(args);
pg_log(PG_VERBOSE, "executing: %s\n", command);
result = PQexec(conn, command);
status = PQresultStatus(result);
if ((status != PGRES_TUPLES_OK) && (status != PGRES_COMMAND_OK))
{
pg_log(PG_REPORT, "SQL command failed\n%s\n%s\n", command,
PQerrorMessage(conn));
PQclear(result);
PQfinish(conn);
printf("Failure, exiting\n");
exit(1);
}
else
return result;
}
| static PGconn * get_db_conn | ( | ClusterInfo * | cluster, | |
| const char * | db_name | |||
| ) | [static] |
Definition at line 52 of file server.c.
References MAXPGPATH, NAMEDATALEN, os_info, ClusterInfo::port, PQconnectdb(), snprintf(), ClusterInfo::sockdir, and OSInfo::user.
Referenced by connectToServer(), and start_postmaster().
{
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);
}
| uint32 get_major_server_version | ( | ClusterInfo * | cluster | ) |
Definition at line 142 of file server.c.
References ClusterInfo::major_version_str, NULL, PG_FATAL, pg_log(), ClusterInfo::pgdata, and snprintf().
Referenced by check_cluster_versions().
{
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_log(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_log(PG_FATAL, "could not get version from %s\n", cluster->pgdata);
fclose(version_fd);
return (100 * integer_version + fractional_version) * 100;
}
| bool start_postmaster | ( | ClusterInfo * | cluster, | |
| bool | throw_error | |||
| ) |
Definition at line 174 of file server.c.
References BINARY_UPGRADE_SERVER_FLAG_CAT_VER, ClusterInfo::bindir, ControlData::cat_ver, CLUSTER_NAME, conn, CONNECTION_OK, ClusterInfo::controldata, exec_prog(), get_db_conn(), GET_MAJOR_VERSION, ClusterInfo::major_version, MAXPGPATH, new_cluster, NULL, os_info, PG_FATAL, pg_log(), PG_REPORT, ClusterInfo::pgconfig, ClusterInfo::pgopts, ClusterInfo::port, PQerrorMessage(), PQfinish(), PQstatus(), OSInfo::running_cluster, SERVER_LOG_FILE, SERVER_START_LOG_FILE, snprintf(), ClusterInfo::sockdir, and stop_postmaster_atexit().
Referenced by check_and_dump_old_cluster(), do_start(), issue_warnings(), main(), and setup().
{
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
/*
* Using autovacuum=off disables cleanup vacuum and analyze, but freeze
* vacuums can still happen, so we set autovacuum_freeze_max_age to its
* maximum. We assume all datfrozenxid and relfrozen 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);
if (!pg_ctl_return && !throw_error)
return false;
/* Check to see if we can connect to the server; if not, report it. */
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_log(PG_FATAL, "could not connect to %s postmaster started with the command:\n"
"%s\n",
CLUSTER_NAME(cluster), cmd);
}
PQfinish(conn);
/* If the connection didn't fail, fail now */
if (!pg_ctl_return)
pg_log(PG_FATAL, "pg_ctl failed to start the %s server, or connection failed\n",
CLUSTER_NAME(cluster));
os_info.running_cluster = cluster;
return true;
}
| void stop_postmaster | ( | bool | fast | ) |
Definition at line 268 of file server.c.
References ClusterInfo::bindir, exec_prog(), new_cluster, NULL, old_cluster, os_info, ClusterInfo::pgconfig, ClusterInfo::pgopts, OSInfo::running_cluster, and SERVER_STOP_LOG_FILE.
Referenced by check_and_dump_old_cluster(), issue_warnings(), main(), regression_main(), report_clusters_compatible(), setup(), and stop_postmaster_atexit().
{
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;
}
| static void stop_postmaster_atexit | ( | void | ) | [static] |
Definition at line 166 of file server.c.
References stop_postmaster().
Referenced by start_postmaster().
{
stop_postmaster(true);
}
1.7.1