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Provide log_status_format(), useful for an emit_log_hook.

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Refactor so that log_line_prefix() is a thin wrapper over a new
function log_status_format(), and move the implementation to the
latter. Export log_status_format() so that it can be used by an
emit_log_hook.

Discussion: https://postgr.es/m/39c8197652f4d3050aedafae79fa5af31096505f.camel%40j-davis.com
Reviewed-by: Michael Paquier, Alvaro Herrera
This commit is contained in:
Jeff Davis
2022-07-11 12:29:33 -07:00
parent bf022d337e
commit b40baa96a7
2 changed files with 16 additions and 3 deletions
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15
src/backend/utils/error/elog.c
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@@ -2438,10 +2438,19 @@ process_log_prefix_padding(const char *p, int *ppadding)
}
/*
* Format tag info for log lines; append to the provided buffer.
* Format log status information using Log_line_prefix.
*/
static void
log_line_prefix(StringInfo buf, ErrorData *edata)
{
log_status_format(buf, Log_line_prefix, edata);
}
/*
* Format log status info; append to the provided buffer.
*/
void
log_status_format(StringInfo buf, const char *format, ErrorData *edata)
{
/* static counter for line numbers */
static long log_line_number = 0;
@@ -2465,10 +2474,10 @@ log_line_prefix(StringInfo buf, ErrorData *edata)
}
log_line_number++;
if (Log_line_prefix == NULL)
if (format == NULL)
return; /* in case guc hasn't run yet */
for (p = Log_line_prefix; *p != '\0'; p++)
for (p = format; *p != '\0'; p++)
{
if (*p != '%')
{