PostgreSQL Source Code  git master
dump.c File Reference
#include "postgres_fe.h"
#include "pg_upgrade.h"
#include "fe_utils/string_utils.h"
Include dependency graph for dump.c:

Go to the source code of this file.

Functions

void generate_old_dump (void)
 

Function Documentation

◆ generate_old_dump()

void generate_old_dump ( void  )

Definition at line 18 of file dump.c.

References appendConnStrVal(), appendPQExpBuffer(), appendShellString(), ClusterInfo::bindir, check_ok(), cluster_conn_opts(), connstr, PQExpBufferData::data, DB_DUMP_FILE_MASK, DB_DUMP_LOG_FILE_MASK, DbInfo::db_name, DbInfo::db_oid, ClusterInfo::dbarr, DbInfoArr::dbs, end_progress_output(), exec_prog(), GLOBALS_DUMP_FILE, initPQExpBuffer(), log_opts, MAXPGPATH, DbInfoArr::ndbs, new_cluster, old_cluster, parallel_exec_prog(), pg_log(), PG_STATUS, prep_status(), reap_child(), S_IRWXG, S_IRWXO, snprintf(), termPQExpBuffer(), UTILITY_LOG_FILE, and LogOpts::verbose.

Referenced by check_and_dump_old_cluster().

19 {
20  int dbnum;
21  mode_t old_umask;
22 
23  prep_status("Creating dump of global objects");
24 
25  /* run new pg_dumpall binary for globals */
26  exec_prog(UTILITY_LOG_FILE, NULL, true,
27  "\"%s/pg_dumpall\" %s --globals-only --quote-all-identifiers "
28  "--binary-upgrade %s -f %s",
30  log_opts.verbose ? "--verbose" : "",
32  check_ok();
33 
34  prep_status("Creating dump of database schemas\n");
35 
36  /*
37  * Set umask for this function, all functions it calls, and all
38  * subprocesses/threads it creates. We can't use fopen_priv() as Windows
39  * uses threads and umask is process-global.
40  */
41  old_umask = umask(S_IRWXG | S_IRWXO);
42 
43  /* create per-db dump files */
44  for (dbnum = 0; dbnum < old_cluster.dbarr.ndbs; dbnum++)
45  {
46  char sql_file_name[MAXPGPATH],
47  log_file_name[MAXPGPATH];
48  DbInfo *old_db = &old_cluster.dbarr.dbs[dbnum];
50  escaped_connstr;
51 
52  initPQExpBuffer(&connstr);
53  appendPQExpBuffer(&connstr, "dbname=");
54  appendConnStrVal(&connstr, old_db->db_name);
55  initPQExpBuffer(&escaped_connstr);
56  appendShellString(&escaped_connstr, connstr.data);
57  termPQExpBuffer(&connstr);
58 
59  pg_log(PG_STATUS, "%s", old_db->db_name);
60  snprintf(sql_file_name, sizeof(sql_file_name), DB_DUMP_FILE_MASK, old_db->db_oid);
61  snprintf(log_file_name, sizeof(log_file_name), DB_DUMP_LOG_FILE_MASK, old_db->db_oid);
62 
63  parallel_exec_prog(log_file_name, NULL,
64  "\"%s/pg_dump\" %s --schema-only --quote-all-identifiers "
65  "--binary-upgrade --format=custom %s --file=\"%s\" %s",
67  log_opts.verbose ? "--verbose" : "",
68  sql_file_name, escaped_connstr.data);
69 
70  termPQExpBuffer(&escaped_connstr);
71  }
72 
73  /* reap all children */
74  while (reap_child(true) == true)
75  ;
76 
77  umask(old_umask);
78 
80  check_ok();
81 }
void parallel_exec_prog(const char *log_file, const char *opt_log_file, const char *fmt,...)
Definition: parallel.c:63
void termPQExpBuffer(PQExpBuffer str)
Definition: pqexpbuffer.c:128
void end_progress_output(void)
Definition: util.c:44
void appendConnStrVal(PQExpBuffer buf, const char *str)
Definition: string_utils.c:551
int snprintf(char *str, size_t count, const char *fmt,...) pg_attribute_printf(3
PGresult char * cluster_conn_opts(ClusterInfo *cluster)
Definition: server.c:88
LogOpts log_opts
Definition: util.c:18
Oid db_oid
Definition: pg_upgrade.h:186
ClusterInfo new_cluster
Definition: pg_upgrade.c:56
#define MAXPGPATH
void appendPQExpBuffer(PQExpBuffer str, const char *fmt,...)
Definition: pqexpbuffer.c:262
#define S_IRWXG
Definition: win32_port.h:292
void prep_status(const char *fmt,...) pg_attribute_printf(1
ClusterInfo old_cluster
Definition: pg_upgrade.c:56
void pg_log(eLogType type, const char *fmt,...)
Definition: logging.c:69
static void check_ok(void)
Definition: initdb.c:2051
#define DB_DUMP_FILE_MASK
Definition: pg_upgrade.h:33
bool verbose
Definition: pg_upgrade.h:287
char * bindir
Definition: pg_upgrade.h:269
void appendShellString(PQExpBuffer buf, const char *str)
Definition: string_utils.c:434
DbInfoArr dbarr
Definition: pg_upgrade.h:265
#define DB_DUMP_LOG_FILE_MASK
Definition: pg_upgrade.h:35
bool reap_child(bool wait_for_child)
Definition: parallel.c:290
#define UTILITY_LOG_FILE
Definition: pg_upgrade.h:37
bool exec_prog(const char *log_file, const char *opt_log_file, bool throw_error, const char *fmt,...)
Definition: exec.c:82
char * db_name
Definition: pg_upgrade.h:187
#define GLOBALS_DUMP_FILE
Definition: pg_upgrade.h:32
DbInfo * dbs
Definition: pg_upgrade.h:198
void initPQExpBuffer(PQExpBuffer str)
Definition: pqexpbuffer.c:89
#define S_IRWXO
Definition: win32_port.h:304
static char * connstr
Definition: pg_dumpall.c:64