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Use unique_ptr in CLI logging code

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This changes the CLI logging code to avoid manual memory management
(to the extent possible) by using unique_ptr in a couple of spots.
This will come in handy in a later patch.
This commit is contained in:
Tom Tromey 2021-12-31 11:34:59 -07:00
parent 22f8b65e9b
commit 8b1931b394
1 changed files with 16 additions and 25 deletions
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41
gdb/cli/cli-interp.c
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@ -396,9 +396,9 @@ struct saved_output_files
ui_file *log;
ui_file *targ;
ui_file *targerr;
ui_file *file_to_delete;
ui_file_up file_to_delete;
};
static saved_output_files saved_output;
static std::unique_ptr<saved_output_files> saved_output;
/* See cli-interp.h. */
@ -408,12 +408,12 @@ cli_interp_base::set_logging (ui_file_up logfile, bool logging_redirect,
{
if (logfile != nullptr)
{
saved_output.out = gdb_stdout;
saved_output.err = gdb_stderr;
saved_output.log = gdb_stdlog;
saved_output.targ = gdb_stdtarg;
saved_output.targerr = gdb_stdtargerr;
gdb_assert (saved_output.file_to_delete == nullptr);
saved_output.reset (new saved_output_files);
saved_output->out = gdb_stdout;
saved_output->err = gdb_stderr;
saved_output->log = gdb_stdlog;
saved_output->targ = gdb_stdtarg;
saved_output->targerr = gdb_stdtargerr;
/* If something is not being redirected, then a tee containing both the
logfile and stdout. */
@ -422,10 +422,10 @@ cli_interp_base::set_logging (ui_file_up logfile, bool logging_redirect,
if (!logging_redirect || !debug_redirect)
{
tee = new tee_file (gdb_stdout, std::move (logfile));
saved_output.file_to_delete = tee;
saved_output->file_to_delete.reset (tee);
}
else
saved_output.file_to_delete = logfile.release ();
saved_output->file_to_delete = std::move (logfile);
gdb_stdout = logging_redirect ? logfile_p : tee;
gdb_stdlog = debug_redirect ? logfile_p : tee;
@ -435,22 +435,13 @@ cli_interp_base::set_logging (ui_file_up logfile, bool logging_redirect,
}
else
{
/* Delete the correct file. If it's the tee then the logfile will also
be deleted. */
delete saved_output.file_to_delete;
gdb_stdout = saved_output->out;
gdb_stderr = saved_output->err;
gdb_stdlog = saved_output->log;
gdb_stdtarg = saved_output->targ;
gdb_stdtargerr = saved_output->targerr;
gdb_stdout = saved_output.out;
gdb_stderr = saved_output.err;
gdb_stdlog = saved_output.log;
gdb_stdtarg = saved_output.targ;
gdb_stdtargerr = saved_output.targerr;
saved_output.out = nullptr;
saved_output.err = nullptr;
saved_output.log = nullptr;
saved_output.targ = nullptr;
saved_output.targerr = nullptr;
saved_output.file_to_delete = nullptr;
saved_output.reset (nullptr);
}
}