43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
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/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2012, 2013.
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This file is part of the Sortix C Library.
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The Sortix C Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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The Sortix C Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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stdio/fflush_stop_writing_unlocked.cpp
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Resets the FILE to a consistent state so it is ready for reading.
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*******************************************************************************/
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#include <errno.h>
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#include <stdio.h>
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extern "C" int fflush_stop_writing_unlocked(FILE* fp)
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{
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if ( !(fp->flags & _FILE_LAST_WRITE) )
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return 0;
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if ( !fp->write_func )
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return errno = EBADF, EOF;
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size_t size = sizeof(unsigned char);
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size_t count = fp->amount_output_buffered;
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int ret = 0;
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if ( fp->write_func(fp->buffer, size, count, fp->user) != count )
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ret = EOF; // TODO: Set errno!
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fp->amount_output_buffered = 0;
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fp->flags &= ~_FILE_LAST_WRITE;
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return ret;
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}
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