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48 lines
1.9 KiB
C
48 lines
1.9 KiB
C
/* Monitoring file descriptor usage.
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Copyright (C) 2018-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef SUPPORT_DESCRIPTORS_H
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#define SUPPORT_DESCRIPTORS_H
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#include <stdio.h>
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/* Opaque pointer, for capturing file descriptor lists. */
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struct support_descriptors;
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/* Record the currently open file descriptors and store them in the
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returned list. Terminate the process if the listing operation
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fails. */
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struct support_descriptors *support_descriptors_list (void);
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/* Deallocate the list of descriptors. */
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void support_descriptors_free (struct support_descriptors *);
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/* Write the list of descriptors to STREAM, adding PREFIX to each
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line. */
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void support_descriptors_dump (struct support_descriptors *,
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const char *prefix, FILE *stream);
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/* Check for file descriptor leaks and other file descriptor changes:
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Compare the current list of descriptors with the passed list.
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Record a test failure if there are additional open descriptors,
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descriptors have been closed, or if a change in file descriptor can
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be detected. */
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void support_descriptors_check (struct support_descriptors *);
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#endif /* SUPPORT_DESCRIPTORS_H */
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