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, ProcNumber procNumber)
void	pq_parse_errornotice (StringInfo msg, ErrorData *edata)

Function Documentation

pq_parse_errornotice()

void pq_parse_errornotice	(	StringInfo	msg,
		ErrorData *	edata
	)

Definition at line 222 of file pqmq.c.

{
    /* Initialize edata with reasonable defaults. */
    MemSet(edata, 0, sizeof(ErrorData));
    edata->elevel = ERROR;
    edata->assoc_context = CurrentMemoryContext;
 
    /* Loop over fields and extract each one. */
    for (;;)
    {
        char        code = pq_getmsgbyte(msg);
        const char *value;
 
        if (code == '\0')
        {
            pq_getmsgend(msg);
            break;
        }
        value = pq_getmsgrawstring(msg);
 
        switch (code)
        {
            case PG_DIAG_SEVERITY:
                /* ignore, trusting we'll get a nonlocalized version */
                break;
            case PG_DIAG_SEVERITY_NONLOCALIZED:
                if (strcmp(value, "DEBUG") == 0)
                {
                    /*
                     * We can't reconstruct the exact DEBUG level, but
                     * presumably it was >= client_min_messages, so select
                     * DEBUG1 to ensure we'll pass it on to the client.
                     */
                    edata->elevel = DEBUG1;
                }
                else if (strcmp(value, "LOG") == 0)
                {
                    /*
                     * It can't be LOG_SERVER_ONLY, or the worker wouldn't
                     * have sent it to us; so LOG is the correct value.
                     */
                    edata->elevel = LOG;
                }
                else if (strcmp(value, "INFO") == 0)
                    edata->elevel = INFO;
                else if (strcmp(value, "NOTICE") == 0)
                    edata->elevel = NOTICE;
                else if (strcmp(value, "WARNING") == 0)
                    edata->elevel = WARNING;
                else if (strcmp(value, "ERROR") == 0)
                    edata->elevel = ERROR;
                else if (strcmp(value, "FATAL") == 0)
                    edata->elevel = FATAL;
                else if (strcmp(value, "PANIC") == 0)
                    edata->elevel = PANIC;
                else
                    elog(ERROR, "unrecognized error severity: \"%s\"", value);
                break;
            case PG_DIAG_SQLSTATE:
                if (strlen(value) != 5)
                    elog(ERROR, "invalid SQLSTATE: \"%s\"", value);
                edata->sqlerrcode = MAKE_SQLSTATE(value[0], value[1], value[2],
                                                  value[3], value[4]);
                break;
            case PG_DIAG_MESSAGE_PRIMARY:
                edata->message = pstrdup(value);
                break;
            case PG_DIAG_MESSAGE_DETAIL:
                edata->detail = pstrdup(value);
                break;
            case PG_DIAG_MESSAGE_HINT:
                edata->hint = pstrdup(value);
                break;
            case PG_DIAG_STATEMENT_POSITION:
                edata->cursorpos = pg_strtoint32(value);
                break;
            case PG_DIAG_INTERNAL_POSITION:
                edata->internalpos = pg_strtoint32(value);
                break;
            case PG_DIAG_INTERNAL_QUERY:
                edata->internalquery = pstrdup(value);
                break;
            case PG_DIAG_CONTEXT:
                edata->context = pstrdup(value);
                break;
            case PG_DIAG_SCHEMA_NAME:
                edata->schema_name = pstrdup(value);
                break;
            case PG_DIAG_TABLE_NAME:
                edata->table_name = pstrdup(value);
                break;
            case PG_DIAG_COLUMN_NAME:
                edata->column_name = pstrdup(value);
                break;
            case PG_DIAG_DATATYPE_NAME:
                edata->datatype_name = pstrdup(value);
                break;
            case PG_DIAG_CONSTRAINT_NAME:
                edata->constraint_name = pstrdup(value);
                break;
            case PG_DIAG_SOURCE_FILE:
                edata->filename = pstrdup(value);
                break;
            case PG_DIAG_SOURCE_LINE:
                edata->lineno = pg_strtoint32(value);
                break;
            case PG_DIAG_SOURCE_FUNCTION:
                edata->funcname = pstrdup(value);
                break;
            default:
                elog(ERROR, "unrecognized error field code: %d", (int) code);
                break;
        }
    }
}

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 ProcessParallelApplyMessage(), and ProcessParallelMessage().

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.

{
    PqCommMethods = &PqCommMqMethods;
    pq_mq_handle = mqh;
    whereToSendOutput = DestRemote;
    FrontendProtocol = PG_PROTOCOL_LATEST;
    on_dsm_detach(seg, pq_cleanup_redirect_to_shm_mq, (Datum) 0);
}

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,
		ProcNumber	procNumber
	)

Definition at line 82 of file pqmq.c.

{
    Assert(PqCommMethods == &PqCommMqMethods);
    pq_mq_parallel_leader_pid = pid;
    pq_mq_parallel_leader_proc_number = procNumber;
}

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

Referenced by ParallelApplyWorkerMain(), and ParallelWorkerMain().