77 lines
2.4 KiB
C
77 lines
2.4 KiB
C
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/*****************************************************************************
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* vlc_memstream.h:
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*****************************************************************************
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* Copyright (C) 2016 Rémi Denis-Courmont
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifndef VLC_MEMSTREAM_H
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# define VLC_MEMSTREAM_H 1
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# include <stdarg.h>
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# include <stdio.h>
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struct vlc_memstream
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{
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union
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{
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FILE *stream;
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int error;
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};
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char *ptr;
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size_t length;
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};
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VLC_API
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int vlc_memstream_open(struct vlc_memstream *ms);
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VLC_API
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int vlc_memstream_flush(struct vlc_memstream *ms) VLC_USED;
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VLC_API
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int vlc_memstream_close(struct vlc_memstream *ms) VLC_USED;
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VLC_API
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size_t vlc_memstream_write(struct vlc_memstream *ms,
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const void *ptr, size_t len);
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VLC_API
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int vlc_memstream_putc(struct vlc_memstream *ms, int c);
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VLC_API
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int vlc_memstream_puts(struct vlc_memstream *ms, const char *str);
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VLC_API
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int vlc_memstream_vprintf(struct vlc_memstream *ms, const char *fmt,
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va_list args);
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VLC_API
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int vlc_memstream_printf(struct vlc_memstream *s, const char *fmt,
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...) VLC_FORMAT(2,3);
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# ifdef __GNUC__
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static inline int vlc_memstream_puts_len(struct vlc_memstream *ms,
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const char *str, size_t len)
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{
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return (vlc_memstream_write(ms, str, len) == len) ? (int)len : EOF;
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}
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# define vlc_memstream_puts(ms,s) \
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(__builtin_constant_p(__builtin_strlen(s)) ? \
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vlc_memstream_puts_len(ms,s,__builtin_strlen(s)) : \
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vlc_memstream_puts(ms,s))
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# endif
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#endif /* VLC_MEMSTREAM_H */
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