PostgreSQL Source Code git master
Macros | Functions | Variables
streamutil.c File Reference
#include "postgres_fe.h"
#include <sys/time.h>
#include <unistd.h>
#include "access/xlog_internal.h"
#include "common/connect.h"
#include "common/file_perm.h"
#include "common/logging.h"
#include "common/string.h"
#include "datatype/timestamp.h"
#include "port/pg_bswap.h"
#include "pqexpbuffer.h"
#include "streamutil.h"
Include dependency graph for streamutil.c:

Go to the source code of this file.

Macros

#define  ERRCODE_DUPLICATE_OBJECT   "42710"
 
#define  MINIMUM_VERSION_FOR_SHOW_CMD   100000
 
#define  MINIMUM_VERSION_FOR_GROUP_ACCESS   110000
 

Functions

static bool  RetrieveDataDirCreatePerm (PGconn *conn)
 
PGconn *  GetConnection (void)
 
bool  RetrieveWalSegSize (PGconn *conn)
 
bool  RunIdentifySystem (PGconn *conn, char **sysid, TimeLineID *starttli, XLogRecPtr *startpos, char **db_name)
 
bool  GetSlotInformation (PGconn *conn, const char *slot_name, XLogRecPtr *restart_lsn, TimeLineID *restart_tli)
 
bool  CreateReplicationSlot (PGconn *conn, const char *slot_name, const char *plugin, bool is_temporary, bool is_physical, bool reserve_wal, bool slot_exists_ok, bool two_phase, bool failover)
 
bool  DropReplicationSlot (PGconn *conn, const char *slot_name)
 
void  AppendPlainCommandOption (PQExpBuffer buf, bool use_new_option_syntax, char *option_name)
 
void  AppendStringCommandOption (PQExpBuffer buf, bool use_new_option_syntax, char *option_name, char *option_value)
 
void  AppendIntegerCommandOption (PQExpBuffer buf, bool use_new_option_syntax, char *option_name, int32 option_value)
 
TimestampTz  feGetCurrentTimestamp (void)
 
void  feTimestampDifference (TimestampTz start_time, TimestampTz stop_time, long *secs, int *microsecs)
 
bool  feTimestampDifferenceExceeds (TimestampTz start_time, TimestampTz stop_time, int msec)
 
void  fe_sendint64 (int64 i, char *buf)
 
int64  fe_recvint64 (char *buf)
 

Variables

int  WalSegSz
 
const char *  progname
 
char *  connection_string = NULL
 
char *  dbhost = NULL
 
char *  dbuser = NULL
 
char *  dbport = NULL
 
char *  dbname = NULL
 
int  dbgetpassword = 0
 
static char *  password = NULL
 
PGconn *  conn = NULL
 

Macro Definition Documentation

◆ ERRCODE_DUPLICATE_OBJECT

#define ERRCODE_DUPLICATE_OBJECT   "42710"

Definition at line 30 of file streamutil.c.

◆ MINIMUM_VERSION_FOR_GROUP_ACCESS

#define MINIMUM_VERSION_FOR_GROUP_ACCESS   110000

Definition at line 42 of file streamutil.c.

◆ MINIMUM_VERSION_FOR_SHOW_CMD

#define MINIMUM_VERSION_FOR_SHOW_CMD   100000

Definition at line 37 of file streamutil.c.

Function Documentation

◆ AppendIntegerCommandOption()

void AppendIntegerCommandOption ( PQExpBuffer  buf,
bool  use_new_option_syntax,
char *  option_name,
int32  option_value 
)

Definition at line 790 of file streamutil.c.

792{
793 AppendPlainCommandOption(buf, use_new_option_syntax, option_name);
794
795 appendPQExpBuffer(buf, " %d", option_value);
796}
static char * buf
Definition: pg_test_fsync.c:72
void appendPQExpBuffer(PQExpBuffer str, const char *fmt,...)
Definition: pqexpbuffer.c:265
void AppendPlainCommandOption(PQExpBuffer buf, bool use_new_option_syntax, char *option_name)
Definition: streamutil.c:746

References AppendPlainCommandOption(), appendPQExpBuffer(), and buf.

Referenced by BaseBackup().

◆ AppendPlainCommandOption()

void AppendPlainCommandOption ( PQExpBuffer  buf,
bool  use_new_option_syntax,
char *  option_name 
)

Definition at line 746 of file streamutil.c.

748{
749 if (buf->len > 0 && buf->data[buf->len - 1] != '(')
750 {
751 if (use_new_option_syntax)
753 else
755 }
756
757 appendPQExpBuffer(buf, " %s", option_name);
758}
void appendPQExpBufferChar(PQExpBuffer str, char ch)
Definition: pqexpbuffer.c:378
void appendPQExpBufferStr(PQExpBuffer str, const char *data)
Definition: pqexpbuffer.c:367

References appendPQExpBuffer(), appendPQExpBufferChar(), appendPQExpBufferStr(), and buf.

Referenced by AppendIntegerCommandOption(), AppendStringCommandOption(), BaseBackup(), and CreateReplicationSlot().

◆ AppendStringCommandOption()

void AppendStringCommandOption ( PQExpBuffer  buf,
bool  use_new_option_syntax,
char *  option_name,
char *  option_value 
)

Definition at line 767 of file streamutil.c.

769{
770 AppendPlainCommandOption(buf, use_new_option_syntax, option_name);
771
772 if (option_value != NULL)
773 {
774 size_t length = strlen(option_value);
775 char *escaped_value = palloc(1 + 2 * length);
776
777 PQescapeStringConn(conn, escaped_value, option_value, length, NULL);
778 appendPQExpBuffer(buf, " '%s'", escaped_value);
779 pfree(escaped_value);
780 }
781}
size_t PQescapeStringConn(PGconn *conn, char *to, const char *from, size_t length, int *error)
Definition: fe-exec.c:4188
void pfree(void *pointer)
Definition: mcxt.c:1594
void * palloc(Size size)
Definition: mcxt.c:1365
PGconn * conn
Definition: streamutil.c:52

References AppendPlainCommandOption(), appendPQExpBuffer(), buf, conn, palloc(), pfree(), and PQescapeStringConn().

Referenced by BaseBackup(), and CreateReplicationSlot().

◆ CreateReplicationSlot()

bool CreateReplicationSlot ( PGconn *  conn,
const char *  slot_name,
const char *  plugin,
bool  is_temporary,
bool  is_physical,
bool  reserve_wal,
bool  slot_exists_ok,
bool  two_phase,
bool  failover 
)

Definition at line 584 of file streamutil.c.

587{
588 PQExpBuffer query;
589 PGresult *res;
590 bool use_new_option_syntax = (PQserverVersion(conn) >= 150000);
591
592 query = createPQExpBuffer();
593
594 Assert((is_physical && plugin == NULL) ||
595 (!is_physical && plugin != NULL));
596 Assert(!(two_phase && is_physical));
597 Assert(!(failover && is_physical));
598 Assert(slot_name != NULL);
599
600 /* Build base portion of query */
601 appendPQExpBuffer(query, "CREATE_REPLICATION_SLOT \"%s\"", slot_name);
602 if (is_temporary)
603 appendPQExpBufferStr(query, " TEMPORARY");
604 if (is_physical)
605 appendPQExpBufferStr(query, " PHYSICAL");
606 else
607 appendPQExpBuffer(query, " LOGICAL \"%s\"", plugin);
608
609 /* Add any requested options */
610 if (use_new_option_syntax)
611 appendPQExpBufferStr(query, " (");
612 if (is_physical)
613 {
614 if (reserve_wal)
615 AppendPlainCommandOption(query, use_new_option_syntax,
616 "RESERVE_WAL");
617 }
618 else
619 {
620 if (failover && PQserverVersion(conn) >= 170000)
621 AppendPlainCommandOption(query, use_new_option_syntax,
622 "FAILOVER");
623
624 if (two_phase && PQserverVersion(conn) >= 150000)
625 AppendPlainCommandOption(query, use_new_option_syntax,
626 "TWO_PHASE");
627
628 if (PQserverVersion(conn) >= 100000)
629 {
630 /* pg_recvlogical doesn't use an exported snapshot, so suppress */
631 if (use_new_option_syntax)
632 AppendStringCommandOption(query, use_new_option_syntax,
633 "SNAPSHOT", "nothing");
634 else
635 AppendPlainCommandOption(query, use_new_option_syntax,
636 "NOEXPORT_SNAPSHOT");
637 }
638 }
639 if (use_new_option_syntax)
640 {
641 /* Suppress option list if it would be empty, otherwise terminate */
642 if (query->data[query->len - 1] == '(')
643 {
644 query->len -= 2;
645 query->data[query->len] = '0円';
646 }
647 else
648 appendPQExpBufferChar(query, ')');
649 }
650
651 /* Now run the query */
652 res = PQexec(conn, query->data);
654 {
655 const char *sqlstate = PQresultErrorField(res, PG_DIAG_SQLSTATE);
656
657 if (slot_exists_ok &&
658 sqlstate &&
659 strcmp(sqlstate, ERRCODE_DUPLICATE_OBJECT) == 0)
660 {
661 destroyPQExpBuffer(query);
662 PQclear(res);
663 return true;
664 }
665 else
666 {
667 pg_log_error("could not send replication command \"%s\": %s",
668 query->data, PQerrorMessage(conn));
669
670 destroyPQExpBuffer(query);
671 PQclear(res);
672 return false;
673 }
674 }
675
676 if (PQntuples(res) != 1 || PQnfields(res) != 4)
677 {
678 pg_log_error("could not create replication slot \"%s\": got %d rows and %d fields, expected %d rows and %d fields",
679 slot_name,
680 PQntuples(res), PQnfields(res), 1, 4);
681
682 destroyPQExpBuffer(query);
683 PQclear(res);
684 return false;
685 }
686
687 destroyPQExpBuffer(query);
688 PQclear(res);
689 return true;
690}
int PQserverVersion(const PGconn *conn)
Definition: fe-connect.c:7669
char * PQerrorMessage(const PGconn *conn)
Definition: fe-connect.c:7679
PGresult * PQexec(PGconn *conn, const char *query)
Definition: fe-exec.c:2273
Assert(PointerIsAligned(start, uint64))
#define PQclear
Definition: libpq-be-fe.h:245
#define PQresultErrorField
Definition: libpq-be-fe.h:249
#define PQnfields
Definition: libpq-be-fe.h:252
#define PQresultStatus
Definition: libpq-be-fe.h:247
#define PQntuples
Definition: libpq-be-fe.h:251
@ PGRES_TUPLES_OK
Definition: libpq-fe.h:128
#define pg_log_error(...)
Definition: logging.h:106
static bool slot_exists_ok
Definition: pg_receivewal.c:50
static bool two_phase
Definition: pg_recvlogical.c:45
static bool failover
Definition: pg_recvlogical.c:46
static const char * plugin
Definition: pg_recvlogical.c:61
#define PG_DIAG_SQLSTATE
Definition: postgres_ext.h:57
PQExpBuffer createPQExpBuffer(void)
Definition: pqexpbuffer.c:72
void destroyPQExpBuffer(PQExpBuffer str)
Definition: pqexpbuffer.c:114
#define ERRCODE_DUPLICATE_OBJECT
Definition: streamutil.c:30
void AppendStringCommandOption(PQExpBuffer buf, bool use_new_option_syntax, char *option_name, char *option_value)
Definition: streamutil.c:767
char * data
Definition: pqexpbuffer.h:46
size_t len
Definition: pqexpbuffer.h:47
Definition: libpq-int.h:165

References AppendPlainCommandOption(), appendPQExpBuffer(), appendPQExpBufferChar(), appendPQExpBufferStr(), AppendStringCommandOption(), Assert(), conn, createPQExpBuffer(), PQExpBufferData::data, destroyPQExpBuffer(), ERRCODE_DUPLICATE_OBJECT, failover, PQExpBufferData::len, PG_DIAG_SQLSTATE, pg_log_error, PGRES_TUPLES_OK, plugin, PQclear, PQerrorMessage(), PQexec(), PQnfields, PQntuples, PQresultErrorField, PQresultStatus, PQserverVersion(), slot_exists_ok, and two_phase.

◆ DropReplicationSlot()

bool DropReplicationSlot ( PGconn *  conn,
const char *  slot_name 
)

Definition at line 697 of file streamutil.c.

698{
699 PQExpBuffer query;
700 PGresult *res;
701
702 Assert(slot_name != NULL);
703
704 query = createPQExpBuffer();
705
706 /* Build query */
707 appendPQExpBuffer(query, "DROP_REPLICATION_SLOT \"%s\"",
708 slot_name);
709 res = PQexec(conn, query->data);
711 {
712 pg_log_error("could not send replication command \"%s\": %s",
713 query->data, PQerrorMessage(conn));
714
715 destroyPQExpBuffer(query);
716 PQclear(res);
717 return false;
718 }
719
720 if (PQntuples(res) != 0 || PQnfields(res) != 0)
721 {
722 pg_log_error("could not drop replication slot \"%s\": got %d rows and %d fields, expected %d rows and %d fields",
723 slot_name,
724 PQntuples(res), PQnfields(res), 0, 0);
725
726 destroyPQExpBuffer(query);
727 PQclear(res);
728 return false;
729 }
730
731 destroyPQExpBuffer(query);
732 PQclear(res);
733 return true;
734}
@ PGRES_COMMAND_OK
Definition: libpq-fe.h:125

References appendPQExpBuffer(), Assert(), conn, createPQExpBuffer(), PQExpBufferData::data, destroyPQExpBuffer(), pg_log_error, PGRES_COMMAND_OK, PQclear, PQerrorMessage(), PQexec(), PQnfields, PQntuples, and PQresultStatus.

◆ fe_recvint64()

int64 fe_recvint64 ( char *  buf )

Definition at line 868 of file streamutil.c.

869{
870 uint64 n64;
871
872 memcpy(&n64, buf, sizeof(n64));
873
874 return pg_ntoh64(n64);
875}
uint64_t uint64
Definition: c.h:539
#define pg_ntoh64(x)
Definition: pg_bswap.h:126

References buf, and pg_ntoh64.

Referenced by ProcessWALDataMsg(), and StreamLogicalLog().

◆ fe_sendint64()

void fe_sendint64 ( int64  i,
char *  buf 
)

Definition at line 857 of file streamutil.c.

858{
859 uint64 n64 = pg_hton64(i);
860
861 memcpy(buf, &n64, sizeof(n64));
862}
i
int i
Definition: isn.c:77
#define pg_hton64(x)
Definition: pg_bswap.h:122

References buf, i, and pg_hton64.

Referenced by sendFeedback().

◆ feGetCurrentTimestamp()

TimestampTz feGetCurrentTimestamp ( void  )

Definition at line 803 of file streamutil.c.

804{
805 TimestampTz result;
806 struct timeval tp;
807
808 gettimeofday(&tp, NULL);
809
810 result = (TimestampTz) tp.tv_sec -
812 result = (result * USECS_PER_SEC) + tp.tv_usec;
813
814 return result;
815}
int64 TimestampTz
Definition: timestamp.h:39
#define USECS_PER_SEC
Definition: timestamp.h:134
#define UNIX_EPOCH_JDATE
Definition: timestamp.h:234
#define SECS_PER_DAY
Definition: timestamp.h:126
#define POSTGRES_EPOCH_JDATE
Definition: timestamp.h:235
int gettimeofday(struct timeval *tp, void *tzp)

References gettimeofday(), POSTGRES_EPOCH_JDATE, SECS_PER_DAY, UNIX_EPOCH_JDATE, and USECS_PER_SEC.

Referenced by flushAndSendFeedback(), HandleCopyStream(), ProcessKeepaliveMsg(), and StreamLogicalLog().

◆ feTimestampDifference()

void feTimestampDifference ( TimestampTz  start_time,
TimestampTz  stop_time,
long *  secs,
int *  microsecs 
)

Definition at line 822 of file streamutil.c.

824{
825 TimestampTz diff = stop_time - start_time;
826
827 if (diff <= 0)
828 {
829 *secs = 0;
830 *microsecs = 0;
831 }
832 else
833 {
834 *secs = (long) (diff / USECS_PER_SEC);
835 *microsecs = (int) (diff % USECS_PER_SEC);
836 }
837}
static time_t start_time
Definition: pg_ctl.c:95

References start_time, and USECS_PER_SEC.

Referenced by CalculateCopyStreamSleeptime(), and StreamLogicalLog().

◆ feTimestampDifferenceExceeds()

bool feTimestampDifferenceExceeds ( TimestampTz  start_time,
TimestampTz  stop_time,
int  msec 
)

Definition at line 844 of file streamutil.c.

847{
848 TimestampTz diff = stop_time - start_time;
849
850 return (diff >= msec * INT64CONST(1000));
851}
#define INT64CONST(x)
Definition: c.h:552

References INT64CONST, and start_time.

Referenced by HandleCopyStream(), and StreamLogicalLog().

◆ GetConnection()

PGconn * GetConnection ( void  )

Definition at line 60 of file streamutil.c.

61{
62 PGconn *tmpconn;
63 int argcount = 7; /* dbname, replication, fallback_app_name,
64 * host, user, port, password */
65 int i;
66 const char **keywords;
67 const char **values;
68 const char *tmpparam;
69 bool need_password;
70 PQconninfoOption *conn_opts = NULL;
71 PQconninfoOption *conn_opt;
72 char *err_msg = NULL;
73
74 /*
75 * pg_recvlogical uses dbname only; others use connection_string only.
76 * (Note: both variables will be NULL if there's no command line options.)
77 */
78 Assert(dbname == NULL || connection_string == NULL);
79
80 /*
81 * Merge the connection info inputs given in form of connection string,
82 * options and default values (dbname=replication, replication=true, etc.)
83 */
84 i = 0;
86 {
87 conn_opts = PQconninfoParse(connection_string, &err_msg);
88 if (conn_opts == NULL)
89 pg_fatal("%s", err_msg);
90
91 for (conn_opt = conn_opts; conn_opt->keyword != NULL; conn_opt++)
92 {
93 if (conn_opt->val != NULL && conn_opt->val[0] != '0円')
94 argcount++;
95 }
96
97 keywords = pg_malloc0((argcount + 1) * sizeof(*keywords));
98 values = pg_malloc0((argcount + 1) * sizeof(*values));
99
100 /*
101 * Set dbname here already, so it can be overridden by a dbname in the
102 * connection string.
103 */
104 keywords[i] = "dbname";
105 values[i] = "replication";
106 i++;
107
108 for (conn_opt = conn_opts; conn_opt->keyword != NULL; conn_opt++)
109 {
110 if (conn_opt->val != NULL && conn_opt->val[0] != '0円')
111 {
112 keywords[i] = conn_opt->keyword;
113 values[i] = conn_opt->val;
114 i++;
115 }
116 }
117 }
118 else
119 {
120 keywords = pg_malloc0((argcount + 1) * sizeof(*keywords));
121 values = pg_malloc0((argcount + 1) * sizeof(*values));
122 keywords[i] = "dbname";
123 values[i] = (dbname == NULL) ? "replication" : dbname;
124 i++;
125 }
126
127 keywords[i] = "replication";
128 values[i] = (dbname == NULL) ? "true" : "database";
129 i++;
130 keywords[i] = "fallback_application_name";
131 values[i] = progname;
132 i++;
133
134 if (dbhost)
135 {
136 keywords[i] = "host";
137 values[i] = dbhost;
138 i++;
139 }
140 if (dbuser)
141 {
142 keywords[i] = "user";
143 values[i] = dbuser;
144 i++;
145 }
146 if (dbport)
147 {
148 keywords[i] = "port";
149 values[i] = dbport;
150 i++;
151 }
152
153 /* If -W was given, force prompt for password, but only the first time */
154 need_password = (dbgetpassword == 1 && !password);
155
156 do
157 {
158 /* Get a new password if appropriate */
159 if (need_password)
160 {
161 free(password);
162 password = simple_prompt("Password: ", false);
163 need_password = false;
164 }
165
166 /* Use (or reuse, on a subsequent connection) password if we have it */
167 if (password)
168 {
169 keywords[i] = "password";
170 values[i] = password;
171 }
172 else
173 {
174 keywords[i] = NULL;
175 values[i] = NULL;
176 }
177
178 /*
179 * Only expand dbname when we did not already parse the argument as a
180 * connection string ourselves.
181 */
183
184 /*
185 * If there is too little memory even to allocate the PGconn object
186 * and PQconnectdbParams returns NULL, we call exit(1) directly.
187 */
188 if (!tmpconn)
189 pg_fatal("could not connect to server");
190
191 /* If we need a password and -w wasn't given, loop back and get one */
192 if (PQstatus(tmpconn) == CONNECTION_BAD &&
193 PQconnectionNeedsPassword(tmpconn) &&
194 dbgetpassword != -1)
195 {
196 PQfinish(tmpconn);
197 need_password = true;
198 }
199 }
200 while (need_password);
201
202 if (PQstatus(tmpconn) != CONNECTION_OK)
203 {
204 pg_log_error("%s", PQerrorMessage(tmpconn));
205 PQfinish(tmpconn);
206 free(values);
207 free(keywords);
208 PQconninfoFree(conn_opts);
209 return NULL;
210 }
211
212 /* Connection ok! */
213 free(values);
214 free(keywords);
215 PQconninfoFree(conn_opts);
216
217 /*
218 * Set always-secure search path, so malicious users can't get control.
219 * The capacity to run normal SQL queries was added in PostgreSQL 10, so
220 * the search path cannot be changed (by us or attackers) on earlier
221 * versions.
222 */
223 if (dbname != NULL && PQserverVersion(tmpconn) >= 100000)
224 {
225 PGresult *res;
226
229 {
230 pg_log_error("could not clear \"search_path\": %s",
231 PQerrorMessage(tmpconn));
232 PQclear(res);
233 PQfinish(tmpconn);
234 exit(1);
235 }
236 PQclear(res);
237 }
238
239 /*
240 * Ensure we have the same value of integer_datetimes (now always "on") as
241 * the server we are connecting to.
242 */
243 tmpparam = PQparameterStatus(tmpconn, "integer_datetimes");
244 if (!tmpparam)
245 {
246 pg_log_error("could not determine server setting for \"integer_datetimes\"");
247 PQfinish(tmpconn);
248 exit(1);
249 }
250
251 if (strcmp(tmpparam, "on") != 0)
252 {
253 pg_log_error("\"integer_datetimes\" compile flag does not match server");
254 PQfinish(tmpconn);
255 exit(1);
256 }
257
258 /*
259 * Retrieve the source data directory mode and use it to construct a umask
260 * for creating directories and files.
261 */
262 if (!RetrieveDataDirCreatePerm(tmpconn))
263 {
264 PQfinish(tmpconn);
265 exit(1);
266 }
267
268 return tmpconn;
269}
static Datum values[MAXATTR]
Definition: bootstrap.c:153
#define ALWAYS_SECURE_SEARCH_PATH_SQL
Definition: connect.h:25
void PQconninfoFree(PQconninfoOption *connOptions)
Definition: fe-connect.c:7500
PQconninfoOption * PQconninfoParse(const char *conninfo, char **errmsg)
Definition: fe-connect.c:6216
const char * PQparameterStatus(const PGconn *conn, const char *paramName)
Definition: fe-connect.c:7634
int PQconnectionNeedsPassword(const PGconn *conn)
Definition: fe-connect.c:7732
ConnStatusType PQstatus(const PGconn *conn)
Definition: fe-connect.c:7616
void PQfinish(PGconn *conn)
Definition: fe-connect.c:5305
PGconn * PQconnectdbParams(const char *const *keywords, const char *const *values, int expand_dbname)
Definition: fe-connect.c:768
void * pg_malloc0(size_t size)
Definition: fe_memutils.c:53
#define free(a)
Definition: header.h:65
static const JsonPathKeyword keywords[]
Definition: jsonpath_scan.l:402
@ CONNECTION_BAD
Definition: libpq-fe.h:85
@ CONNECTION_OK
Definition: libpq-fe.h:84
#define pg_fatal(...)
char * simple_prompt(const char *prompt, bool echo)
Definition: sprompt.c:38
int dbgetpassword
Definition: streamutil.c:50
char * dbhost
Definition: streamutil.c:46
static char * password
Definition: streamutil.c:51
char * dbport
Definition: streamutil.c:48
char * connection_string
Definition: streamutil.c:45
const char * progname
Definition: streamutil.c:44
static bool RetrieveDataDirCreatePerm(PGconn *conn)
Definition: streamutil.c:355
char * dbname
Definition: streamutil.c:49
char * dbuser
Definition: streamutil.c:47
Definition: libpq-fe.h:272
char * keyword
Definition: libpq-fe.h:273
char * val
Definition: libpq-fe.h:276
Definition: libpq-int.h:372

References ALWAYS_SECURE_SEARCH_PATH_SQL, Assert(), CONNECTION_BAD, CONNECTION_OK, connection_string, dbgetpassword, dbhost, dbname, dbport, dbuser, free, i, _PQconninfoOption::keyword, keywords, password, pg_fatal, pg_log_error, pg_malloc0(), PGRES_TUPLES_OK, PQclear, PQconnectdbParams(), PQconnectionNeedsPassword(), PQconninfoFree(), PQconninfoParse(), PQerrorMessage(), PQexec(), PQfinish(), PQparameterStatus(), PQresultStatus, PQserverVersion(), PQstatus(), progname, RetrieveDataDirCreatePerm(), simple_prompt(), _PQconninfoOption::val, and values.

◆ GetSlotInformation()

bool GetSlotInformation ( PGconn *  conn,
const char *  slot_name,
XLogRecPtr *  restart_lsn,
TimeLineID *  restart_tli 
)

Definition at line 490 of file streamutil.c.

492{
493 PGresult *res;
494 PQExpBuffer query;
496 TimeLineID tli_loc = 0;
497
498 if (restart_lsn)
499 *restart_lsn = lsn_loc;
500 if (restart_tli)
501 *restart_tli = tli_loc;
502
503 query = createPQExpBuffer();
504 appendPQExpBuffer(query, "READ_REPLICATION_SLOT %s", slot_name);
505 res = PQexec(conn, query->data);
506 destroyPQExpBuffer(query);
507
509 {
510 pg_log_error("could not send replication command \"%s\": %s",
511 "READ_REPLICATION_SLOT", PQerrorMessage(conn));
512 PQclear(res);
513 return false;
514 }
515
516 /* The command should always return precisely one tuple and three fields */
517 if (PQntuples(res) != 1 || PQnfields(res) != 3)
518 {
519 pg_log_error("could not read replication slot \"%s\": got %d rows and %d fields, expected %d rows and %d fields",
520 slot_name, PQntuples(res), PQnfields(res), 1, 3);
521 PQclear(res);
522 return false;
523 }
524
525 /*
526 * When the slot doesn't exist, the command returns a tuple with NULL
527 * values. This checks only the slot type field.
528 */
529 if (PQgetisnull(res, 0, 0))
530 {
531 pg_log_error("replication slot \"%s\" does not exist", slot_name);
532 PQclear(res);
533 return false;
534 }
535
536 /*
537 * Note that this cannot happen as READ_REPLICATION_SLOT supports only
538 * physical slots, but play it safe.
539 */
540 if (strcmp(PQgetvalue(res, 0, 0), "physical") != 0)
541 {
542 pg_log_error("expected a physical replication slot, got type \"%s\" instead",
543 PQgetvalue(res, 0, 0));
544 PQclear(res);
545 return false;
546 }
547
548 /* restart LSN */
549 if (!PQgetisnull(res, 0, 1))
550 {
551 uint32 hi,
552 lo;
553
554 if (sscanf(PQgetvalue(res, 0, 1), "%X/%08X", &hi, &lo) != 2)
555 {
556 pg_log_error("could not parse restart_lsn \"%s\" for replication slot \"%s\"",
557 PQgetvalue(res, 0, 1), slot_name);
558 PQclear(res);
559 return false;
560 }
561 lsn_loc = ((uint64) hi) << 32 | lo;
562 }
563
564 /* current TLI */
565 if (!PQgetisnull(res, 0, 2))
566 tli_loc = (TimeLineID) atoll(PQgetvalue(res, 0, 2));
567
568 PQclear(res);
569
570 /* Assign results if requested */
571 if (restart_lsn)
572 *restart_lsn = lsn_loc;
573 if (restart_tli)
574 *restart_tli = tli_loc;
575
576 return true;
577}
uint32_t uint32
Definition: c.h:538
#define PQgetvalue
Definition: libpq-be-fe.h:253
#define PQgetisnull
Definition: libpq-be-fe.h:255
uint64 XLogRecPtr
Definition: xlogdefs.h:21
#define InvalidXLogRecPtr
Definition: xlogdefs.h:28
uint32 TimeLineID
Definition: xlogdefs.h:62

References appendPQExpBuffer(), conn, createPQExpBuffer(), PQExpBufferData::data, destroyPQExpBuffer(), InvalidXLogRecPtr, pg_log_error, PGRES_TUPLES_OK, PQclear, PQerrorMessage(), PQexec(), PQgetisnull, PQgetvalue, PQnfields, PQntuples, and PQresultStatus.

Referenced by StreamLog().

◆ RetrieveDataDirCreatePerm()

static bool RetrieveDataDirCreatePerm ( PGconn *  conn )
static

Definition at line 355 of file streamutil.c.

356{
357 PGresult *res;
359
360 /* check connection existence */
361 Assert(conn != NULL);
362
363 /* for previous versions leave the default group access */
365 return true;
366
367 res = PQexec(conn, "SHOW data_directory_mode");
369 {
370 pg_log_error("could not send replication command \"%s\": %s",
371 "SHOW data_directory_mode", PQerrorMessage(conn));
372
373 PQclear(res);
374 return false;
375 }
376 if (PQntuples(res) != 1 || PQnfields(res) < 1)
377 {
378 pg_log_error("could not fetch group access flag: got %d rows and %d fields, expected %d rows and %d or more fields",
379 PQntuples(res), PQnfields(res), 1, 1);
380
381 PQclear(res);
382 return false;
383 }
384
385 if (sscanf(PQgetvalue(res, 0, 0), "%o", &data_directory_mode) != 1)
386 {
387 pg_log_error("group access flag could not be parsed: %s",
388 PQgetvalue(res, 0, 0));
389
390 PQclear(res);
391 return false;
392 }
393
395
396 PQclear(res);
397 return true;
398}
void SetDataDirectoryCreatePerm(int dataDirMode)
Definition: file_perm.c:34
int data_directory_mode
Definition: globals.c:77
#define MINIMUM_VERSION_FOR_GROUP_ACCESS
Definition: streamutil.c:42

References Assert(), conn, data_directory_mode, MINIMUM_VERSION_FOR_GROUP_ACCESS, pg_log_error, PGRES_TUPLES_OK, PQclear, PQerrorMessage(), PQexec(), PQgetvalue, PQnfields, PQntuples, PQresultStatus, PQserverVersion(), and SetDataDirectoryCreatePerm().

Referenced by GetConnection().

◆ RetrieveWalSegSize()

bool RetrieveWalSegSize ( PGconn *  conn )

Definition at line 276 of file streamutil.c.

277{
278 PGresult *res;
279 char xlog_unit[3];
280 int xlog_val,
281 multiplier = 1;
282
283 /* check connection existence */
284 Assert(conn != NULL);
285
286 /* for previous versions set the default xlog seg size */
288 {
290 return true;
291 }
292
293 res = PQexec(conn, "SHOW wal_segment_size");
295 {
296 pg_log_error("could not send replication command \"%s\": %s",
297 "SHOW wal_segment_size", PQerrorMessage(conn));
298
299 PQclear(res);
300 return false;
301 }
302 if (PQntuples(res) != 1 || PQnfields(res) < 1)
303 {
304 pg_log_error("could not fetch WAL segment size: got %d rows and %d fields, expected %d rows and %d or more fields",
305 PQntuples(res), PQnfields(res), 1, 1);
306
307 PQclear(res);
308 return false;
309 }
310
311 /* fetch xlog value and unit from the result */
312 if (sscanf(PQgetvalue(res, 0, 0), "%d%2s", &xlog_val, xlog_unit) != 2)
313 {
314 pg_log_error("WAL segment size could not be parsed");
315 PQclear(res);
316 return false;
317 }
318
319 PQclear(res);
320
321 /* set the multiplier based on unit to convert xlog_val to bytes */
322 if (strcmp(xlog_unit, "MB") == 0)
323 multiplier = 1024 * 1024;
324 else if (strcmp(xlog_unit, "GB") == 0)
325 multiplier = 1024 * 1024 * 1024;
326
327 /* convert and set WalSegSz */
328 WalSegSz = xlog_val * multiplier;
329
331 {
332 pg_log_error(ngettext("remote server reported invalid WAL segment size (%d byte)",
333 "remote server reported invalid WAL segment size (%d bytes)",
334 WalSegSz),
335 WalSegSz);
336 pg_log_error_detail("The WAL segment size must be a power of two between 1 MB and 1 GB.");
337 return false;
338 }
339
340 return true;
341}
#define ngettext(s, p, n)
Definition: c.h:1180
#define pg_log_error_detail(...)
Definition: logging.h:109
#define DEFAULT_XLOG_SEG_SIZE
int WalSegSz
Definition: streamutil.c:32
#define MINIMUM_VERSION_FOR_SHOW_CMD
Definition: streamutil.c:37
#define IsValidWalSegSize(size)
Definition: xlog_internal.h:96

References Assert(), conn, DEFAULT_XLOG_SEG_SIZE, IsValidWalSegSize, MINIMUM_VERSION_FOR_SHOW_CMD, ngettext, pg_log_error, pg_log_error_detail, PGRES_TUPLES_OK, PQclear, PQerrorMessage(), PQexec(), PQgetvalue, PQnfields, PQntuples, PQresultStatus, PQserverVersion(), and WalSegSz.

Referenced by main().

◆ RunIdentifySystem()

bool RunIdentifySystem ( PGconn *  conn,
char **  sysid,
TimeLineID *  starttli,
XLogRecPtr *  startpos,
char **  db_name 
)

Definition at line 409 of file streamutil.c.

411{
412 PGresult *res;
413 uint32 hi,
414 lo;
415
416 /* Check connection existence */
417 Assert(conn != NULL);
418
419 res = PQexec(conn, "IDENTIFY_SYSTEM");
421 {
422 pg_log_error("could not send replication command \"%s\": %s",
423 "IDENTIFY_SYSTEM", PQerrorMessage(conn));
424
425 PQclear(res);
426 return false;
427 }
428 if (PQntuples(res) != 1 || PQnfields(res) < 3)
429 {
430 pg_log_error("could not identify system: got %d rows and %d fields, expected %d rows and %d or more fields",
431 PQntuples(res), PQnfields(res), 1, 3);
432
433 PQclear(res);
434 return false;
435 }
436
437 /* Get system identifier */
438 if (sysid != NULL)
439 *sysid = pg_strdup(PQgetvalue(res, 0, 0));
440
441 /* Get timeline ID to start streaming from */
442 if (starttli != NULL)
443 *starttli = atoi(PQgetvalue(res, 0, 1));
444
445 /* Get LSN start position if necessary */
446 if (startpos != NULL)
447 {
448 if (sscanf(PQgetvalue(res, 0, 2), "%X/%08X", &hi, &lo) != 2)
449 {
450 pg_log_error("could not parse write-ahead log location \"%s\"",
451 PQgetvalue(res, 0, 2));
452
453 PQclear(res);
454 return false;
455 }
456 *startpos = ((uint64) hi) << 32 | lo;
457 }
458
459 /* Get database name, only available in 9.4 and newer versions */
460 if (db_name != NULL)
461 {
462 *db_name = NULL;
463 if (PQserverVersion(conn) >= 90400)
464 {
465 if (PQnfields(res) < 4)
466 {
467 pg_log_error("could not identify system: got %d rows and %d fields, expected %d rows and %d or more fields",
468 PQntuples(res), PQnfields(res), 1, 4);
469
470 PQclear(res);
471 return false;
472 }
473 if (!PQgetisnull(res, 0, 3))
474 *db_name = pg_strdup(PQgetvalue(res, 0, 3));
475 }
476 }
477
478 PQclear(res);
479 return true;
480}
char * pg_strdup(const char *in)
Definition: fe_memutils.c:85
static XLogRecPtr startpos
Definition: pg_recvlogical.c:50

References Assert(), conn, pg_log_error, pg_strdup(), PGRES_TUPLES_OK, PQclear, PQerrorMessage(), PQexec(), PQgetisnull, PQgetvalue, PQnfields, PQntuples, PQresultStatus, PQserverVersion(), and startpos.

Referenced by BaseBackup(), main(), ReceiveXlogStream(), and StreamLog().

Variable Documentation

◆ conn

PGconn* conn = NULL

Definition at line 52 of file streamutil.c.

Referenced by add_client_identification(), append_db_pattern_cte(), append_rel_pattern_filtered_cte(), append_rel_pattern_raw_cte(), appendQualifiedRelation(), AppendStringCommandOption(), appendStringLiteralConn(), applyRemoteGucs(), BaseBackup(), build_client_final_message(), build_client_first_message(), build_startup_packet(), buildShSecLabels(), canChangeResultMode(), check_and_drop_existing_subscriptions(), check_and_drop_publications(), check_expected_areq(), check_for_pg_role_prefix(), check_for_prepared_transactions(), check_is_install_user(), check_issuer(), check_loadable_libraries(), check_new_cluster_replication_slots(), check_new_cluster_subscription_configuration(), check_old_cluster_subscription_state(), check_prepare_conn(), check_publisher(), check_subscriber(), CheckCopyStreamStop(), CheckServerVersionForStreaming(), cleanup_objects_atexit(), cleanup_user_oauth_flow(), clear_allowed_sasl_mechs(), client_initial_response(), close_cursor(), cluster_all_databases(), cluster_one_database(), compile_database_list(), compile_relation_list_one_db(), configure_remote_session(), confirm_result_status_impl(), connect_database(), connect_pg_server(), ConnectDatabase(), connectDatabase(), connectFailureMessage(), connection_failed(), connectMaintenanceDatabase(), connectNoDelay(), connectOptions1(), connectToServer(), consume_null_result_impl(), consume_query_cancel_impl(), consume_result_status_impl(), copy_connection(), CopyStreamPoll(), CopyStreamReceive(), create_cursor(), create_logical_replication_slot(), create_logical_replication_slots(), create_publication(), create_subscription(), CreateReplicationSlot(), dblink_cancel_query(), dblink_close(), dblink_connect(), dblink_disconnect(), dblink_error_message(), dblink_exec(), dblink_fetch(), dblink_get_conn(), dblink_get_notify(), dblink_is_busy(), dblink_open(), dblink_record_internal(), dblink_res_error(), dblink_res_internalerror(), dblink_security_check(), dblink_send_query(), disconnect_atexit(), disconnect_database(), disconnectDatabase(), do_sql_command(), do_sql_command_begin(), do_sql_command_end(), doConnect(), drop_existing_subscriptions(), drop_failover_replication_slots(), drop_primary_replication_slot(), drop_publication(), drop_replication_slot(), dropDBs(), DropReplicationSlot(), dropRoles(), dropTablespaces(), dumpDatabase(), dumpDatabaseConfig(), dumpDatabases(), dumpLOs(), dumpRoleGUCPrivs(), dumpRoleMembership(), dumpRoles(), dumpTableData_copy(), dumpTablespaces(), dumpUserConfig(), ecpg_raise_backend(), emitHostIdentityInfo(), emitShSecLabels(), enable_subscription(), escape_append_literal(), escape_fmt_id(), escape_identifier(), escape_literal(), escape_string_conn(), estimate_path_cost_size(), executeCommand(), executeMaintenanceCommand(), executeQuery(), executeQueryOrDie(), ExecuteSqlCommand(), exit_nicely(), expand_dbname_patterns(), exportFile(), fetch_more_data(), fill_allowed_sasl_mechs(), fillPGconn(), flushAndSendFeedback(), free_async_ctx(), freePGconn(), gen_reindex_command(), generate_object_name(), get_db_conn(), get_db_infos(), get_parallel_tabidx_list(), get_parallel_tables_list(), get_primary_sysid(), get_publisher_databases(), get_remote_estimate(), get_subscription_info(), get_tablespace_paths(), get_template0_info(), getAnotherTuple(), getBackendKeyData(), getCopyDataMessage(), getCopyResult(), getCopyStart(), getHostaddr(), getNotify(), getParamDescriptions(), getParameterStatus(), getReadyForQuery(), getRowDescriptions(), GetSlotInformation(), gss_read(), handle_oauth_sasl_error(), handleCopyIn(), handleCopyOut(), HandleCopyStream(), HandleEndOfCopyStream(), handleFatalError(), handleSyncLoss(), importFile(), index_of_allowed_sasl_mech(), init_allowed_encryption_methods(), init_libpq_conn(), init_libpq_source(), initialize_curl(), initialize_SSL(), internal_ping(), issuer_from_well_known_uri(), libpq_append_conn_error(), libpq_fetch_file(), libpq_get_current_wal_insert_lsn(), libpq_prng_init(), libpq_traverse_files(), libpqrcv_alter_slot(), libpqrcv_connect(), libpqrcv_create_slot(), libpqrcv_disconnect(), libpqrcv_endstreaming(), libpqrcv_exec(), libpqrcv_get_backend_pid(), libpqrcv_get_conninfo(), libpqrcv_get_senderinfo(), libpqrcv_identify_system(), libpqrcv_readtimelinehistoryfile(), libpqrcv_receive(), libpqrcv_send(), libpqrcv_server_version(), libpqrcv_startstreaming(), libpqsrv_cancel(), libpqsrv_connect(), libpqsrv_connect_internal(), libpqsrv_connect_params(), libpqsrv_disconnect(), libpqsrv_exec(), libpqsrv_exec_params(), libpqsrv_get_result(), libpqsrv_get_result_last(), libpqsrv_PQgetResult(), lo_close(), lo_creat(), lo_create(), lo_export(), lo_import(), lo_import_internal(), lo_import_with_oid(), lo_initialize(), lo_lseek(), lo_lseek64(), lo_open(), lo_read(), lo_tell(), lo_tell64(), lo_truncate(), lo_truncate64(), lo_unlink(), lo_write(), main(), makeAlterConfigCommand(), materializeQueryResult(), materializeResult(), my_truncate(), oauth_exchange(), oauth_init(), old_9_6_invalidate_hash_indexes(), open_client_SSL(), openssl_verify_peer_name_matches_certificate_ip(), openssl_verify_peer_name_matches_certificate_name(), overwrite(), ParallelSlotsAdoptConn(), ParallelSlotsTerminate(), parseInput(), pg_fe_cleanup_oauth_flow(), pg_fe_run_oauth_flow(), pg_fe_run_oauth_flow_impl(), pg_fe_sendauth(), pg_GSS_error(), pg_GSS_load_servicename(), pg_GSS_read(), pg_GSS_write(), pg_password_sendauth(), pg_SASL_continue(), pg_SASL_init(), pgconn_bio_ctrl(), pgconn_bio_read(), pgfdw_cancel_query(), pgfdw_cancel_query_begin(), pgfdw_cancel_query_end(), pgfdw_conn_check(), pgfdw_exec_cleanup_query(), pgfdw_exec_cleanup_query_begin(), pgfdw_exec_cleanup_query_end(), pgfdw_exec_query(), pgfdw_get_cleanup_result(), pgfdw_get_result(), pgfdw_report(), pgfdw_report_error(), pgfdw_report_internal(), pgfdw_security_check(), pgpassfileWarning(), pgtls_close(), pgtls_get_peer_certificate_hash(), pgtls_open_client(), pgtls_read(), pgtls_read_pending(), pgtls_verify_peer_name_matches_certificate_guts(), pgtls_write(), pickout(), postgresAcquireSampleRowsFunc(), postgresAnalyzeForeignTable(), postgresExecForeignTruncate(), postgresGetAnalyzeInfoForForeignTable(), postgresImportForeignSchema(), pq_verify_peer_name_matches_certificate(), pq_verify_peer_name_matches_certificate_ip(), pq_verify_peer_name_matches_certificate_name(), pqAllocCmdQueueEntry(), pqAppendCmdQueueEntry(), PQbackendPID(), pqBuildStartupPacket3(), PQcancelCreate(), PQcancelPoll(), PQchangePassword(), pqCheckInBufferSpace(), pqCheckOutBufferSpace(), pqClearAsyncResult(), pqClearOAuthToken(), PQclientEncoding(), pqClosePGconn(), PQclosePortal(), PQclosePrepared(), pqCommandQueueAdvance(), PQconnectdb(), pqConnectDBComplete(), PQconnectdbParams(), pqConnectDBStart(), PQconnectionNeedsPassword(), PQconnectionUsedGSSAPI(), PQconnectionUsedPassword(), pqConnectOptions2(), PQconnectPoll(), PQconnectStart(), PQconnectStartParams(), PQconninfo(), PQconsumeInput(), PQdb(), PQdefaultSSLKeyPassHook_OpenSSL(), PQdescribePortal(), PQdescribePrepared(), pqDropConnection(), pqDropServerData(), PQencryptPasswordConn(), PQendcopy(), pqEndcopy3(), PQenterPipelineMode(), PQerrorMessage(), PQescapeByteaConn(), PQescapeByteaInternal(), PQescapeIdentifier(), PQescapeInternal(), PQescapeLiteral(), PQescapeStringConn(), PQescapeStringInternal(), PQexec(), PQexecFinish(), PQexecParams(), PQexecPrepared(), PQexecStart(), PQexitPipelineMode(), PQfinish(), PQfireResultCreateEvents(), PQflush(), pqFlush(), PQfn(), PQfullProtocolVersion(), pqFunctionCall3(), pqGetc(), PQgetCancel(), PQgetCopyData(), pqGetCopyData3(), pqGetErrorNotice3(), PQgetgssctx(), pqGetInt(), PQgetline(), pqGetline3(), PQgetlineAsync(), pqGetlineAsync3(), pqGetnchar(), pqGetNegotiateProtocolVersion3(), PQgetResult(), pqGets(), pqGets_append(), pqGets_internal(), PQgetssl(), PQgssEncInUse(), PQhost(), PQhostaddr(), PQinstanceData(), PQisBusy(), PQisnonblocking(), pqMakeEmptyPGconn(), PQmakeEmptyPGresult(), PQnotifies(), PQoptions(), pqPacketSend(), PQparameterStatus(), pqParseDone(), pqParseInput3(), pqParseIntParam(), pqParseProtocolVersion(), PQpass(), PQping(), PQpingParams(), pqPipelineFlush(), pqPipelineProcessQueue(), PQpipelineStatus(), PQpipelineSync(), pqPipelineSyncInternal(), PQport(), PQprepare(), pqPrepareAsyncResult(), PQprotocolVersion(), pqPutc(), PQputCopyData(), PQputCopyEnd(), pqPutInt(), PQputline(), pqPutMsgBytes(), pqPutMsgEnd(), pqPutMsgStart(), PQputnbytes(), pqPutnchar(), pqPuts(), pqReadData(), pqReadReady(), pqRecycleCmdQueueEntry(), PQregisterEventProc(), pqReleaseConnHosts(), PQrequestCancel(), PQreset(), PQresetPoll(), PQresetStart(), pqRowProcessor(), pqSaveErrorResult(), pqSaveParameterStatus(), pqSaveWriteError(), pqsecure_close(), pqsecure_open_client(), pqsecure_open_gss(), pqsecure_raw_read(), pqsecure_raw_write(), pqsecure_read(), pqsecure_write(), PQsendClosePortal(), PQsendClosePrepared(), PQsendDescribePortal(), PQsendDescribePrepared(), PQsendFlushRequest(), PQsendPipelineSync(), PQsendPrepare(), PQsendQuery(), PQsendQueryContinue(), PQsendQueryGuts(), PQsendQueryInternal(), PQsendQueryParams(), PQsendQueryPrepared(), PQsendQueryStart(), pqSendSome(), PQsendTypedCommand(), PQserverVersion(), PQsetChunkedRowsMode(), PQsetClientEncoding(), PQsetdbLogin(), PQsetErrorContextVisibility(), PQsetErrorVerbosity(), PQsetInstanceData(), PQsetnonblocking(), PQsetNoticeProcessor(), PQsetNoticeReceiver(), PQsetSingleRowMode(), PQsetTraceFlags(), pqSkipnchar(), PQsocket(), pqSocketCheck(), PQssl_passwd_cb(), PQsslAttribute(), PQsslAttributeNames(), PQsslInUse(), PQsslStruct(), PQstatus(), PQtrace(), pqTraceOutputCharResponse(), pqTraceOutputMessage(), pqTraceOutputNoTypeByteMessage(), PQtransactionStatus(), PQtty(), PQuntrace(), PQuser(), pqWait(), pqWaitTimed(), pqWriteReady(), prepare_vacuum_command(), prepareToTerminate(), process_result(), ProcessKeepaliveMsg(), processSQLNamePattern(), ProcessWALDataMsg(), prohibit_crossdb_refs(), prompt_user(), read_server_final_message(), read_server_first_message(), ReceiveArchiveStream(), ReceiveBackupManifest(), ReceiveBackupManifestInMemory(), ReceiveCopyData(), ReceiveTarFile(), ReceiveXlogStream(), reindex_all_databases(), reindex_one_database(), release_conn_addrinfo(), retrieve_objects(), RetrieveDataDirCreatePerm(), RetrieveWalSegSize(), run_permutation(), run_reindex_command(), run_simple_command(), run_simple_query(), run_user_oauth_flow(), run_vacuum_command(), RunIdentifySystem(), scram_exchange(), scram_init(), select_next_encryption_method(), send_cancellable_query_impl(), sendFeedback(), sendTerminateConn(), server_is_in_recovery(), set_archive_cancel_info(), set_frozenxids(), set_replication_progress(), SetCancelConn(), setKeepalivesCount(), setKeepalivesIdle(), setKeepalivesInterval(), setTCPUserTimeout(), setup_connection(), setup_oauth_parameters(), setup_publisher(), setup_recovery(), setup_subscriber(), setup_token_request(), sql_conn(), sql_exec(), sql_exec_dumpalldbs(), sql_exec_dumpalltables(), sql_exec_dumpalltbspc(), sql_exec_searchtables(), ssl_set_pgconn_bio(), start_device_authz(), start_postmaster(), start_token_request(), StartLogStreamer(), store_conn_addrinfo(), storeQueryResult(), StreamLog(), StreamLogicalLog(), stringlist_to_identifierstr(), TableCommandResultHandler(), test_cancel(), test_disallowed_in_pipeline(), test_multi_pipelines(), test_nosync(), test_pipeline_abort(), test_pipeline_idle(), test_pipelined_insert(), test_prepared(), test_protocol_version(), test_simple_pipeline(), test_singlerowmode(), test_transaction(), test_uniqviol(), try_complete_step(), useKeepalives(), vacuum_all_databases(), vacuum_one_database(), vacuumlo(), verify_btree_slot_handler(), verify_heap_slot_handler(), wait_for_end_recovery(), wait_on_slots(), and wait_until_connected().

◆ connection_string

char* connection_string = NULL

Definition at line 45 of file streamutil.c.

Referenced by BaseBackup(), ConnectDatabase(), GetConnection(), and main().

◆ dbgetpassword

int dbgetpassword = 0

Definition at line 50 of file streamutil.c.

Referenced by GetConnection(), and main().

◆ dbhost

char* dbhost = NULL

Definition at line 46 of file streamutil.c.

Referenced by GetConnection(), and main().

◆ dbname

char* dbname = NULL

Definition at line 49 of file streamutil.c.

Referenced by _reconnectToDB(), AlterDatabaseOwner(), appendPsqlMetaConnect(), AutoVacWorkerMain(), BackgroundWorkerInitializeConnection(), check_and_drop_existing_subscriptions(), check_db(), CheckAndGetDbnameFromConninfo(), cluster_all_databases(), concat_conninfo_dbname(), connect_slot(), ConnectDatabase(), conninfo_uri_parse_options(), convert_database_name(), create_database(), createdb(), do_connect(), drop_database_if_exists(), drop_existing_subscriptions(), drop_publication(), dropdb(), dropDBs(), dumpDatabaseConfig(), dumpDatabases(), ECPGconnect(), find_matching_idle_slot(), GenerateRecoveryConfig(), get_base_conninfo(), get_database_oid(), get_publisher_databases(), GetConnection(), GetDatabaseTuple(), GetDbnameFromConnectionOptions(), IdentifySystem(), InitPostgres(), libpqrcv_get_dbname_from_conninfo(), log_status_format(), main(), map_sql_catalog_to_xmlschema_types(), map_sql_schema_to_xmlschema_types(), movedb(), ParallelSlotsGetIdle(), passwordFromFile(), PostgresMain(), PostgresSingleUserMain(), process_pgfdw_appname(), process_postgres_switches(), prohibit_crossdb_refs(), ReconnectToServer(), reindex_all_databases(), ReplSlotSyncWorkerMain(), runPgDump(), set_replication_progress(), and vacuuming_main().

◆ dbport

char* dbport = NULL

Definition at line 48 of file streamutil.c.

Referenced by GetConnection(), and main().

◆ dbuser

char* dbuser = NULL

Definition at line 47 of file streamutil.c.

Referenced by GetConnection(), and main().

◆ password

char* password = NULL
static

Definition at line 51 of file streamutil.c.

Referenced by add_client_identification(), AlterRole(), check_password(), ConnectDatabase(), connectDatabase(), ConnectDatabaseAhx(), conninfo_uri_parse_options(), CreateRole(), do_connect(), doConnect(), encrypt_password(), GetConnection(), main(), pg_be_scram_build_secret(), pg_fe_scram_build_secret(), pg_fe_sendauth(), pg_password_sendauth(), pg_SASL_init(), PQconnectionNeedsPassword(), PQpass(), scram_build_secret(), scram_init(), scram_SaltedPassword(), scram_verify_plain_password(), sql_conn(), and vacuumlo().

◆ progname

const char* progname

Definition at line 44 of file streamutil.c.

Referenced by GetConnection().

◆ WalSegSz

int WalSegSz

Definition at line 32 of file streamutil.c.

Referenced by close_walfile(), extractPageMap(), findLastCheckpoint(), FindStreamingStart(), main(), open_walfile(), ProcessWALDataMsg(), readOneRecord(), ReceiveXlogStream(), RetrieveWalSegSize(), SimpleXLogPageRead(), StartLogStreamer(), and StreamLog().

AltStyle によって変換されたページ (->オリジナル) /