pkg-monitoring-plugins/gl/safe-read.h

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/* An interface to read() that retries after interrupts.
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Copyright (C) 2002, 2006, 2009-2010 Free Software Foundation, Inc.
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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
(at your option) any later version.
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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
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <stddef.h>
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#ifdef __cplusplus
extern "C" {
#endif
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#define SAFE_READ_ERROR ((size_t) -1)
/* Read up to COUNT bytes at BUF from descriptor FD, retrying if interrupted.
Return the actual number of bytes read, zero for EOF, or SAFE_READ_ERROR
upon error. */
extern size_t safe_read (int fd, void *buf, size_t count);
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#ifdef __cplusplus
}
#endif