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- /* MI Console code.
- Copyright (C) 2000-2022 Free Software Foundation, Inc.
- Contributed by Cygnus Solutions (a Red Hat company).
- This file is part of GDB.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
- /* An MI console is a kind of ui_file stream that sends output to
- stdout, but encapsulated and prefixed with a distinctive string;
- for instance, error output is normally identified by a leading
- "&". */
- #include "defs.h"
- #include "mi-console.h"
- /* Create a console that wraps the given output stream RAW with the
- string PREFIX and quoting it with QUOTE. */
- mi_console_file::mi_console_file (ui_file *raw, const char *prefix, char quote)
- : m_raw (raw),
- m_prefix (prefix),
- m_quote (quote)
- {}
- void
- mi_console_file::write (const char *buf, long length_buf)
- {
- size_t prev_size = m_buffer.size ();
- /* Append the text to our internal buffer. */
- m_buffer.write (buf, length_buf);
- /* Flush when an embedded newline is present anywhere in the
- buffer. */
- if (strchr (m_buffer.c_str () + prev_size, '\n') != NULL)
- this->flush ();
- }
- void
- mi_console_file::write_async_safe (const char *buf, long length_buf)
- {
- m_raw->write_async_safe (m_prefix, strlen (m_prefix));
- if (m_quote)
- {
- m_raw->write_async_safe (&m_quote, 1);
- m_raw->putstrn (buf, length_buf, m_quote, true);
- m_raw->write_async_safe (&m_quote, 1);
- }
- else
- m_raw->putstrn (buf, length_buf, 0, true);
- char nl = '\n';
- m_raw->write_async_safe (&nl, 1);
- }
- void
- mi_console_file::flush ()
- {
- const std::string &str = m_buffer.string ();
- /* Transform a byte sequence into a console output packet. */
- if (!str.empty ())
- {
- size_t length_buf = str.size ();
- const char *buf = str.data ();
- gdb_puts (m_prefix, m_raw);
- if (m_quote)
- {
- gdb_putc (m_quote, m_raw);
- m_raw->putstrn (buf, length_buf, m_quote);
- gdb_putc (m_quote, m_raw);
- gdb_putc ('\n', m_raw);
- }
- else
- {
- m_raw->putstrn (buf, length_buf, 0);
- gdb_putc ('\n', m_raw);
- }
- gdb_flush (m_raw);
- }
- m_buffer.clear ();
- }
- /* Change the underlying stream of the console directly; this is
- useful as a minimum-impact way to reflect external changes like
- logging enable/disable. */
- void
- mi_console_file::set_raw (ui_file *raw)
- {
- m_raw = raw;
- }
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