vasilito
facf0c92e0
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
/* Abstract output stream data type.
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Copyright (C) 2006, 2019 Free Software Foundation, Inc.
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Written by Bruno Haible <bruno@clisp.org>, 2006.
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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 <https://www.gnu.org/licenses/>. */
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#ifndef _OSTREAM_H
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#define _OSTREAM_H
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#include <stdarg.h>
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#include <stddef.h>
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#include <string.h>
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#include "moo.h"
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/* Describes the scope of a flush operation. */
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typedef enum
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{
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/* Flushes buffers in this ostream_t.
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Use this value if you want to write to the underlying ostream_t. */
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FLUSH_THIS_STREAM = 0,
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/* Flushes all buffers in the current process.
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Use this value if you want to write to the same target through a
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different file descriptor or a FILE stream. */
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FLUSH_THIS_PROCESS = 1,
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/* Flushes buffers in the current process and attempts to flush the buffers
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in the kernel.
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Use this value so that some other process (or the kernel itself)
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may write to the same target. */
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FLUSH_ALL = 2
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} ostream_flush_scope_t;
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/* An output stream is an object to which one can feed a sequence of bytes. */
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struct ostream
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{
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methods:
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/* Write a sequence of bytes to a stream. */
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void write_mem (ostream_t stream, const void *data, size_t len);
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/* Bring buffered data to its destination. */
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void flush (ostream_t stream, ostream_flush_scope_t scope);
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/* Close and free a stream. */
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void free (ostream_t stream);
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Write a string's contents to a stream. */
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extern void ostream_write_str (ostream_t stream, const char *string);
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/* Writes formatted output to a stream.
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Returns the size of formatted output, or a negative value in case of an
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error. */
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extern ptrdiff_t ostream_printf (ostream_t stream, const char *format, ...)
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#if (__GNUC__ == 3 && __GNUC_MINOR__ >= 1) || __GNUC__ > 3
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__attribute__ ((__format__ (__printf__, 2, 3)))
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#endif
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;
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extern ptrdiff_t ostream_vprintf (ostream_t stream,
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const char *format, va_list args)
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#if (__GNUC__ == 3 && __GNUC_MINOR__ >= 1) || __GNUC__ > 3
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__attribute__ ((__format__ (__printf__, 2, 0)))
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#endif
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;
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#if HAVE_INLINE
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#define ostream_write_str ostream_write_str_inline
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static inline void
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ostream_write_str (ostream_t stream, const char *string)
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{
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ostream_write_mem (stream, string, strlen (string));
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}
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _OSTREAM_H */
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