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Introduce macros for protocol characters.

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This commit introduces descriptively-named macros for the
identifiers used in wire protocol messages.  These new macros are
placed in a new header file so that they can be easily used by
third-party code.

Author: Dave Cramer
Reviewed-by: Alvaro Herrera, Tatsuo Ishii, Peter Smith, Robert Haas, Tom Lane, Peter Eisentraut, Michael Paquier
Discussion: https://postgr.es/m/CADK3HHKbBmK-PKf1bPNFoMC%2BoBt%2BpD9PH8h5nvmBQskEHm-Ehw%40mail.gmail.com
This commit is contained in:
Nathan Bossart
2023-08-22 19:16:12 -07:00
parent 7114791158
commit f4b54e1ed9
25 changed files with 305 additions and 204 deletions
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70
src/interfaces/libpq/fe-trace.c
View File

@@ -562,110 +562,120 @@ pqTraceOutputMessage(PGconn *conn, const char *message, bool toServer)
switch (id)
{
case '1':
case PqMsg_ParseComplete:
fprintf(conn->Pfdebug, "ParseComplete");
/* No message content */
break;
case '2':
case PqMsg_BindComplete:
fprintf(conn->Pfdebug, "BindComplete");
/* No message content */
break;
case '3':
case PqMsg_CloseComplete:
fprintf(conn->Pfdebug, "CloseComplete");
/* No message content */
break;
case 'A': /* Notification Response */
case PqMsg_NotificationResponse:
pqTraceOutputA(conn->Pfdebug, message, &logCursor, regress);
break;
case 'B': /* Bind */
case PqMsg_Bind:
pqTraceOutputB(conn->Pfdebug, message, &logCursor);
break;
case 'c':
case PqMsg_CopyDone:
fprintf(conn->Pfdebug, "CopyDone");
/* No message content */
break;
case 'C': /* Close(F) or Command Complete(B) */
case PqMsg_CommandComplete:
/* Close(F) and CommandComplete(B) use the same identifier. */
Assert(PqMsg_Close == PqMsg_CommandComplete);
pqTraceOutputC(conn->Pfdebug, toServer, message, &logCursor);
break;
case 'd': /* Copy Data */
case PqMsg_CopyData:
/* Drop COPY data to reduce the overhead of logging. */
break;
case 'D': /* Describe(F) or Data Row(B) */
case PqMsg_Describe:
/* Describe(F) and DataRow(B) use the same identifier. */
Assert(PqMsg_Describe == PqMsg_DataRow);
pqTraceOutputD(conn->Pfdebug, toServer, message, &logCursor);
break;
case 'E': /* Execute(F) or Error Response(B) */
case PqMsg_Execute:
/* Execute(F) and ErrorResponse(B) use the same identifier. */
Assert(PqMsg_Execute == PqMsg_ErrorResponse);
pqTraceOutputE(conn->Pfdebug, toServer, message, &logCursor,
regress);
break;
case 'f': /* Copy Fail */
case PqMsg_CopyFail:
pqTraceOutputf(conn->Pfdebug, message, &logCursor);
break;
case 'F': /* Function Call */
case PqMsg_FunctionCall:
pqTraceOutputF(conn->Pfdebug, message, &logCursor, regress);
break;
case 'G': /* Start Copy In */
case PqMsg_CopyInResponse:
pqTraceOutputG(conn->Pfdebug, message, &logCursor);
break;
case 'H': /* Flush(F) or Start Copy Out(B) */
case PqMsg_Flush:
/* Flush(F) and CopyOutResponse(B) use the same identifier */
Assert(PqMsg_CopyOutResponse == PqMsg_Flush);
if (!toServer)
pqTraceOutputH(conn->Pfdebug, message, &logCursor);
else
fprintf(conn->Pfdebug, "Flush"); /* no message content */
break;
case 'I':
case PqMsg_EmptyQueryResponse:
fprintf(conn->Pfdebug, "EmptyQueryResponse");
/* No message content */
break;
case 'K': /* secret key data from the backend */
case PqMsg_BackendKeyData:
pqTraceOutputK(conn->Pfdebug, message, &logCursor, regress);
break;
case 'n':
case PqMsg_NoData:
fprintf(conn->Pfdebug, "NoData");
/* No message content */
break;
case 'N':
case PqMsg_NoticeResponse:
pqTraceOutputNR(conn->Pfdebug, "NoticeResponse", message,
&logCursor, regress);
break;
case 'P': /* Parse */
case PqMsg_Parse:
pqTraceOutputP(conn->Pfdebug, message, &logCursor, regress);
break;
case 'Q': /* Query */
case PqMsg_Query:
pqTraceOutputQ(conn->Pfdebug, message, &logCursor);
break;
case 'R': /* Authentication */
case PqMsg_AuthenticationRequest:
pqTraceOutputR(conn->Pfdebug, message, &logCursor);
break;
case 's':
case PqMsg_PortalSuspended:
fprintf(conn->Pfdebug, "PortalSuspended");
/* No message content */
break;
case 'S': /* Parameter Status(B) or Sync(F) */
case PqMsg_Sync:
/* Parameter Status(B) and Sync(F) use the same identifier */
Assert(PqMsg_ParameterStatus == PqMsg_Sync);
if (!toServer)
pqTraceOutputS(conn->Pfdebug, message, &logCursor);
else
fprintf(conn->Pfdebug, "Sync"); /* no message content */
break;
case 't': /* Parameter Description */
case PqMsg_ParameterDescription:
pqTraceOutputt(conn->Pfdebug, message, &logCursor, regress);
break;
case 'T': /* Row Description */
case PqMsg_RowDescription:
pqTraceOutputT(conn->Pfdebug, message, &logCursor, regress);
break;
case 'v': /* Negotiate Protocol Version */
case PqMsg_NegotiateProtocolVersion:
pqTraceOutputv(conn->Pfdebug, message, &logCursor);
break;
case 'V': /* Function Call response */
case PqMsg_FunctionCallResponse:
pqTraceOutputV(conn->Pfdebug, message, &logCursor);
break;
case 'W': /* Start Copy Both */
case PqMsg_CopyBothResponse:
pqTraceOutputW(conn->Pfdebug, message, &logCursor, length);
break;
case 'X':
case PqMsg_Terminate:
fprintf(conn->Pfdebug, "Terminate");
/* No message content */
break;
case 'Z': /* Ready For Query */
case PqMsg_ReadyForQuery:
pqTraceOutputZ(conn->Pfdebug, message, &logCursor);
break;
default: