69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
/* A simple growing buffer for GDB.
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Copyright (C) 2009-2018 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef BUFFER_H
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#define BUFFER_H
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struct buffer
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{
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char *buffer;
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size_t buffer_size; /* allocated size */
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size_t used_size; /* actually used size */
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};
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/* Append DATA of size SIZE to the end of BUFFER. Grows the buffer to
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accommodate the new data. */
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void buffer_grow (struct buffer *buffer, const char *data, size_t size);
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/* Append C to the end of BUFFER. Grows the buffer to accommodate the
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new data. */
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static inline void
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buffer_grow_char (struct buffer *buffer, char c)
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{
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buffer_grow (buffer, &c, 1);
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}
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/* Release any memory held by BUFFER. */
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void buffer_free (struct buffer *buffer);
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/* Initialize BUFFER. BUFFER holds no memory afterwards. */
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void buffer_init (struct buffer *buffer);
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/* Return a pointer into BUFFER data, effectively transferring
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ownership of the buffer memory to the caller. Calling buffer_free
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afterwards has no effect on the returned data. */
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char* buffer_finish (struct buffer *buffer);
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/* Simple printf to buffer function. Current implemented formatters:
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%s - grow an xml escaped text in BUFFER.
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%d - grow an signed integer in BUFFER.
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%u - grow an unsigned integer in BUFFER.
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%x - grow an unsigned integer formatted in hexadecimal in BUFFER.
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%o - grow an unsigned integer formatted in octal in BUFFER. */
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void buffer_xml_printf (struct buffer *buffer, const char *format, ...)
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ATTRIBUTE_PRINTF (2, 3);
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#define buffer_grow_str(BUFFER,STRING) \
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buffer_grow (BUFFER, STRING, strlen (STRING))
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#define buffer_grow_str0(BUFFER,STRING) \
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buffer_grow (BUFFER, STRING, strlen (STRING) + 1)
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#endif
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