From 3c6c449e304413f513db5635abd2181776f7db92 Mon Sep 17 00:00:00 2001 From: Tom Tromey Date: Fri, 31 Dec 2021 11:44:19 -0700 Subject: Add new timestamped_file class This adds a "timestamped_file" subclass of ui_file. This class adds a timestamp to its output when appropriate. That is, it follows the rule already used in vfprintf_unfiltered of adding a timestamp at most once per write. The new class is not yet used. --- gdb/ui-file.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'gdb/ui-file.c') diff --git a/gdb/ui-file.c b/gdb/ui-file.c index d30ec04..354a7c3 100644 --- a/gdb/ui-file.c +++ b/gdb/ui-file.c @@ -25,6 +25,7 @@ #include "gdbsupport/gdb_select.h" #include "gdbsupport/filestuff.h" #include "cli/cli-style.h" +#include null_file null_stream; @@ -449,3 +450,31 @@ no_terminal_escape_file::puts (const char *buf) if (*buf != '\0') this->stdio_file::write (buf, strlen (buf)); } + +void +timestamped_file::write (const char *buf, long len) +{ + if (debug_timestamp) + { + /* Print timestamp if previous print ended with a \n. */ + if (m_needs_timestamp) + { + using namespace std::chrono; + + steady_clock::time_point now = steady_clock::now (); + seconds s = duration_cast (now.time_since_epoch ()); + microseconds us = duration_cast (now.time_since_epoch () - s); + std::string timestamp = string_printf ("%ld.%06ld ", + (long) s.count (), + (long) us.count ()); + m_stream->puts (timestamp.c_str ()); + } + + /* Print the message. */ + m_stream->write (buf, len); + + m_needs_timestamp = (len > 0 && buf[len - 1] == '\n'); + } + else + m_stream->write (buf, len); +} -- cgit v1.1