PostgreSQL Source Code  git master
pqmq.h File Reference
#include "lib/stringinfo.h"
#include "storage/shm_mq.h"
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Functions

void pq_redirect_to_shm_mq (dsm_segment *seg, shm_mq_handle *mqh)
 
void pq_set_parallel_leader (pid_t pid, BackendId backend_id)
 
void pq_parse_errornotice (StringInfo msg, ErrorData *edata)
 

Function Documentation

◆ pq_parse_errornotice()

void pq_parse_errornotice ( StringInfo  msg,
ErrorData edata 
)

Definition at line 216 of file pqmq.c.

217 {
218  /* Initialize edata with reasonable defaults. */
219  MemSet(edata, 0, sizeof(ErrorData));
220  edata->elevel = ERROR;
222 
223  /* Loop over fields and extract each one. */
224  for (;;)
225  {
226  char code = pq_getmsgbyte(msg);
227  const char *value;
228 
229  if (code == '\0')
230  {
231  pq_getmsgend(msg);
232  break;
233  }
234  value = pq_getmsgrawstring(msg);
235 
236  switch (code)
237  {
238  case PG_DIAG_SEVERITY:
239  /* ignore, trusting we'll get a nonlocalized version */
240  break;
242  if (strcmp(value, "DEBUG") == 0)
243  {
244  /*
245  * We can't reconstruct the exact DEBUG level, but
246  * presumably it was >= client_min_messages, so select
247  * DEBUG1 to ensure we'll pass it on to the client.
248  */
249  edata->elevel = DEBUG1;
250  }
251  else if (strcmp(value, "LOG") == 0)
252  {
253  /*
254  * It can't be LOG_SERVER_ONLY, or the worker wouldn't
255  * have sent it to us; so LOG is the correct value.
256  */
257  edata->elevel = LOG;
258  }
259  else if (strcmp(value, "INFO") == 0)
260  edata->elevel = INFO;
261  else if (strcmp(value, "NOTICE") == 0)
262  edata->elevel = NOTICE;
263  else if (strcmp(value, "WARNING") == 0)
264  edata->elevel = WARNING;
265  else if (strcmp(value, "ERROR") == 0)
266  edata->elevel = ERROR;
267  else if (strcmp(value, "FATAL") == 0)
268  edata->elevel = FATAL;
269  else if (strcmp(value, "PANIC") == 0)
270  edata->elevel = PANIC;
271  else
272  elog(ERROR, "unrecognized error severity: \"%s\"", value);
273  break;
274  case PG_DIAG_SQLSTATE:
275  if (strlen(value) != 5)
276  elog(ERROR, "invalid SQLSTATE: \"%s\"", value);
277  edata->sqlerrcode = MAKE_SQLSTATE(value[0], value[1], value[2],
278  value[3], value[4]);
279  break;
281  edata->message = pstrdup(value);
282  break;
284  edata->detail = pstrdup(value);
285  break;
287  edata->hint = pstrdup(value);
288  break;
290  edata->cursorpos = pg_strtoint32(value);
291  break;
293  edata->internalpos = pg_strtoint32(value);
294  break;
296  edata->internalquery = pstrdup(value);
297  break;
298  case PG_DIAG_CONTEXT:
299  edata->context = pstrdup(value);
300  break;
301  case PG_DIAG_SCHEMA_NAME:
302  edata->schema_name = pstrdup(value);
303  break;
304  case PG_DIAG_TABLE_NAME:
305  edata->table_name = pstrdup(value);
306  break;
307  case PG_DIAG_COLUMN_NAME:
308  edata->column_name = pstrdup(value);
309  break;
311  edata->datatype_name = pstrdup(value);
312  break;
314  edata->constraint_name = pstrdup(value);
315  break;
316  case PG_DIAG_SOURCE_FILE:
317  edata->filename = pstrdup(value);
318  break;
319  case PG_DIAG_SOURCE_LINE:
320  edata->lineno = pg_strtoint32(value);
321  break;
323  edata->funcname = pstrdup(value);
324  break;
325  default:
326  elog(ERROR, "unrecognized error field code: %d", (int) code);
327  break;
328  }
329  }
330 }
#define MemSet(start, val, len)
Definition: c.h:1009
#define LOG
Definition: elog.h:31
#define FATAL
Definition: elog.h:41
#define WARNING
Definition: elog.h:36
#define PANIC
Definition: elog.h:42
#define DEBUG1
Definition: elog.h:30
#define ERROR
Definition: elog.h:39
#define MAKE_SQLSTATE(ch1, ch2, ch3, ch4, ch5)
Definition: elog.h:56
#define NOTICE
Definition: elog.h:35
#define INFO
Definition: elog.h:34
static struct @148 value
char * pstrdup(const char *in)
Definition: mcxt.c:1619
MemoryContext CurrentMemoryContext
Definition: mcxt.c:135
int32 pg_strtoint32(const char *s)
Definition: numutils.c:384
#define PG_DIAG_INTERNAL_QUERY
Definition: postgres_ext.h:62
#define PG_DIAG_SCHEMA_NAME
Definition: postgres_ext.h:64
#define PG_DIAG_CONSTRAINT_NAME
Definition: postgres_ext.h:68
#define PG_DIAG_DATATYPE_NAME
Definition: postgres_ext.h:67
#define PG_DIAG_SOURCE_LINE
Definition: postgres_ext.h:70
#define PG_DIAG_STATEMENT_POSITION
Definition: postgres_ext.h:60
#define PG_DIAG_SOURCE_FILE
Definition: postgres_ext.h:69
#define PG_DIAG_MESSAGE_HINT
Definition: postgres_ext.h:59
#define PG_DIAG_SQLSTATE
Definition: postgres_ext.h:56
#define PG_DIAG_SEVERITY_NONLOCALIZED
Definition: postgres_ext.h:55
#define PG_DIAG_TABLE_NAME
Definition: postgres_ext.h:65
#define PG_DIAG_MESSAGE_PRIMARY
Definition: postgres_ext.h:57
#define PG_DIAG_COLUMN_NAME
Definition: postgres_ext.h:66
#define PG_DIAG_MESSAGE_DETAIL
Definition: postgres_ext.h:58
#define PG_DIAG_CONTEXT
Definition: postgres_ext.h:63
#define PG_DIAG_SEVERITY
Definition: postgres_ext.h:54
#define PG_DIAG_SOURCE_FUNCTION
Definition: postgres_ext.h:71
#define PG_DIAG_INTERNAL_POSITION
Definition: postgres_ext.h:61
void pq_getmsgend(StringInfo msg)
Definition: pqformat.c:638
int pq_getmsgbyte(StringInfo msg)
Definition: pqformat.c:402
const char * pq_getmsgrawstring(StringInfo msg)
Definition: pqformat.c:611
int internalpos
Definition: elog.h:452
char * schema_name
Definition: elog.h:446
char * context
Definition: elog.h:443
char * internalquery
Definition: elog.h:453
int sqlerrcode
Definition: elog.h:438
struct MemoryContextData * assoc_context
Definition: elog.h:457
const char * filename
Definition: elog.h:433
int elevel
Definition: elog.h:428
char * datatype_name
Definition: elog.h:449
char * detail
Definition: elog.h:440
const char * funcname
Definition: elog.h:435
char * table_name
Definition: elog.h:447
char * message
Definition: elog.h:439
int lineno
Definition: elog.h:434
char * hint
Definition: elog.h:442
char * constraint_name
Definition: elog.h:450
int cursorpos
Definition: elog.h:451
char * column_name
Definition: elog.h:448

References ErrorData::assoc_context, ErrorData::column_name, ErrorData::constraint_name, ErrorData::context, CurrentMemoryContext, ErrorData::cursorpos, ErrorData::datatype_name, DEBUG1, ErrorData::detail, ErrorData::elevel, elog(), ERROR, FATAL, ErrorData::filename, ErrorData::funcname, ErrorData::hint, INFO, ErrorData::internalpos, ErrorData::internalquery, ErrorData::lineno, LOG, MAKE_SQLSTATE, MemSet, ErrorData::message, NOTICE, PANIC, PG_DIAG_COLUMN_NAME, PG_DIAG_CONSTRAINT_NAME, PG_DIAG_CONTEXT, PG_DIAG_DATATYPE_NAME, PG_DIAG_INTERNAL_POSITION, PG_DIAG_INTERNAL_QUERY, PG_DIAG_MESSAGE_DETAIL, PG_DIAG_MESSAGE_HINT, PG_DIAG_MESSAGE_PRIMARY, PG_DIAG_SCHEMA_NAME, PG_DIAG_SEVERITY, PG_DIAG_SEVERITY_NONLOCALIZED, PG_DIAG_SOURCE_FILE, PG_DIAG_SOURCE_FUNCTION, PG_DIAG_SOURCE_LINE, PG_DIAG_SQLSTATE, PG_DIAG_STATEMENT_POSITION, PG_DIAG_TABLE_NAME, pg_strtoint32(), pq_getmsgbyte(), pq_getmsgend(), pq_getmsgrawstring(), pstrdup(), ErrorData::schema_name, ErrorData::sqlerrcode, ErrorData::table_name, value, and WARNING.

Referenced by HandleParallelApplyMessage(), and HandleParallelMessage().

◆ pq_redirect_to_shm_mq()

void pq_redirect_to_shm_mq ( dsm_segment seg,
shm_mq_handle mqh 
)

Definition at line 53 of file pqmq.c.

54 {
56  pq_mq_handle = mqh;
60 }
@ DestRemote
Definition: dest.h:89
void on_dsm_detach(dsm_segment *seg, on_dsm_detach_callback function, Datum arg)
Definition: dsm.c:1133
ProtocolVersion FrontendProtocol
Definition: globals.c:28
CommandDest whereToSendOutput
Definition: postgres.c:89
uintptr_t Datum
Definition: postgres.h:64
const PQcommMethods * PqCommMethods
Definition: pqcomm.c:162
#define PG_PROTOCOL_LATEST
Definition: pqcomm.h:97
static void pq_cleanup_redirect_to_shm_mq(dsm_segment *seg, Datum arg)
Definition: pqmq.c:67
static const PQcommMethods PqCommMqMethods
Definition: pqmq.c:39
static shm_mq_handle * pq_mq_handle
Definition: pqmq.c:26

References DestRemote, FrontendProtocol, on_dsm_detach(), PG_PROTOCOL_LATEST, pq_cleanup_redirect_to_shm_mq(), pq_mq_handle, PqCommMethods, PqCommMqMethods, and whereToSendOutput.

Referenced by ParallelApplyWorkerMain(), and ParallelWorkerMain().

◆ pq_set_parallel_leader()

void pq_set_parallel_leader ( pid_t  pid,
BackendId  backend_id 
)

Definition at line 78 of file pqmq.c.

79 {
83 }
Assert(fmt[strlen(fmt) - 1] !='\n')
static pid_t pq_mq_parallel_leader_pid
Definition: pqmq.c:28
static pid_t pq_mq_parallel_leader_backend_id
Definition: pqmq.c:29

References Assert(), pq_mq_parallel_leader_backend_id, pq_mq_parallel_leader_pid, PqCommMethods, and PqCommMqMethods.

Referenced by ParallelApplyWorkerMain(), and ParallelWorkerMain().