write_nondefault_variables must take care to write custom_variable_classes
first; otherwise backends reading the file might reject values of custom variables. Per experimentation with auto_explain.
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ccdb6627ee
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@ -10,7 +10,7 @@
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* Written by Peter Eisentraut <peter_e@gmx.net>.
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* Written by Peter Eisentraut <peter_e@gmx.net>.
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*
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*
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* IDENTIFICATION
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.485 2009/01/02 01:16:02 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.486 2009/01/02 02:02:10 tgl Exp $
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*
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*
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*--------------------------------------------------------------------
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*--------------------------------------------------------------------
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*/
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*/
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@ -6677,19 +6677,82 @@ is_newvalue_equal(struct config_generic * record, const char *newvalue)
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#ifdef EXEC_BACKEND
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#ifdef EXEC_BACKEND
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/*
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/*
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* This routine dumps out all non-default GUC options into a binary
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* These routines dump out all non-default GUC options into a binary
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* file that is read by all exec'ed backends. The format is:
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* file that is read by all exec'ed backends. The format is:
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*
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*
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* variable name, string, null terminated
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* variable name, string, null terminated
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* variable value, string, null terminated
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* variable value, string, null terminated
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* variable source, integer
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* variable source, integer
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*/
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*/
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static void
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write_one_nondefault_variable(FILE *fp, struct config_generic *gconf)
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{
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if (gconf->source == PGC_S_DEFAULT)
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return;
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fprintf(fp, "%s", gconf->name);
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fputc(0, fp);
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switch (gconf->vartype)
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{
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case PGC_BOOL:
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{
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struct config_bool *conf = (struct config_bool *) gconf;
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if (*conf->variable)
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fprintf(fp, "true");
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else
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fprintf(fp, "false");
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}
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break;
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case PGC_INT:
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{
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struct config_int *conf = (struct config_int *) gconf;
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fprintf(fp, "%d", *conf->variable);
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}
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break;
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case PGC_REAL:
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{
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struct config_real *conf = (struct config_real *) gconf;
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/* Could lose precision here? */
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fprintf(fp, "%f", *conf->variable);
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}
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break;
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case PGC_STRING:
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{
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struct config_string *conf = (struct config_string *) gconf;
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fprintf(fp, "%s", *conf->variable);
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}
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break;
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case PGC_ENUM:
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{
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struct config_enum *conf = (struct config_enum *) gconf;
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fprintf(fp, "%s",
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config_enum_lookup_by_value(conf, *conf->variable));
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}
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break;
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}
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fputc(0, fp);
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fwrite(&gconf->source, sizeof(gconf->source), 1, fp);
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}
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void
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void
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write_nondefault_variables(GucContext context)
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write_nondefault_variables(GucContext context)
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{
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{
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int i;
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int elevel;
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int elevel;
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FILE *fp;
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FILE *fp;
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struct config_generic *cvc_conf;
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int i;
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Assert(context == PGC_POSTMASTER || context == PGC_SIGHUP);
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Assert(context == PGC_POSTMASTER || context == PGC_SIGHUP);
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@ -6708,66 +6771,20 @@ write_nondefault_variables(GucContext context)
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return;
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return;
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}
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}
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/*
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* custom_variable_classes must be written out first; otherwise we might
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* reject custom variable values while reading the file.
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*/
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cvc_conf = find_option("custom_variable_classes", false, ERROR);
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if (cvc_conf)
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write_one_nondefault_variable(fp, cvc_conf);
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for (i = 0; i < num_guc_variables; i++)
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for (i = 0; i < num_guc_variables; i++)
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{
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{
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struct config_generic *gconf = guc_variables[i];
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struct config_generic *gconf = guc_variables[i];
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if (gconf->source != PGC_S_DEFAULT)
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if (gconf != cvc_conf)
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{
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write_one_nondefault_variable(fp, gconf);
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fprintf(fp, "%s", gconf->name);
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fputc(0, fp);
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switch (gconf->vartype)
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{
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case PGC_BOOL:
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{
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struct config_bool *conf = (struct config_bool *) gconf;
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if (*conf->variable == 0)
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fprintf(fp, "false");
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else
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fprintf(fp, "true");
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}
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break;
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case PGC_INT:
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{
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struct config_int *conf = (struct config_int *) gconf;
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fprintf(fp, "%d", *conf->variable);
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}
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break;
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case PGC_REAL:
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{
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struct config_real *conf = (struct config_real *) gconf;
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/* Could lose precision here? */
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fprintf(fp, "%f", *conf->variable);
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}
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break;
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case PGC_STRING:
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{
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struct config_string *conf = (struct config_string *) gconf;
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fprintf(fp, "%s", *conf->variable);
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}
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break;
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case PGC_ENUM:
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{
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struct config_enum *conf = (struct config_enum *) gconf;
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fprintf(fp, "%s", config_enum_lookup_by_value(conf, *conf->variable));
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}
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break;
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}
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fputc(0, fp);
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fwrite(&gconf->source, sizeof(gconf->source), 1, fp);
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}
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}
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}
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if (FreeFile(fp))
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if (FreeFile(fp))
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