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https://github.com/libguestfs/libguestfs.git
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429ffda329
In virt-df and virt-alignment-scan, ensure that errors that happen in
worker threads are propagated all the way up and result in
exit(EXIT_FAILURE).
Note that this makes the align/test-virt-alignment-scan-guests.sh test
fail (for a genuine reason). This is fixed in the following commit.
This updates commit 8b90f55dc7.
49 lines
1.8 KiB
C
49 lines
1.8 KiB
C
/* virt-df & virt-alignment-scan parallel appliances code.
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* Copyright (C) 2013 Red Hat Inc.
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*
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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 2 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 General Public License for more details.
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*
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef GUESTFS_PARALLEL_H_
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#define GUESTFS_PARALLEL_H_
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#if defined(HAVE_LIBVIRT)
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#include "domains.h"
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/* The work function should do the work (inspecting the domain, etc.)
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* on domain index 'i'. However it MUST NOT print out any result
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* directly. Instead it prints anything it needs to the supplied
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* 'FILE *'.
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* Returns 0 on success or -1 on error.
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*/
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typedef int (*work_fn) (guestfs_h *g, size_t i, FILE *fp);
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/* Run the threads and work through the global list of libvirt
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* domains. 'option_P' is whatever the user passed in the '-P'
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* option, or 0 if the user didn't use the '-P' option (in which case
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* the number of threads is chosen heuristically. 'options_handle'
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* (which may be NULL) is the global guestfs handle created by the
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* options mini-library.
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*
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* Returns 0 if all work items completed successfully, or -1 if there
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* was an error.
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*/
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extern int start_threads (size_t option_P, guestfs_h *options_handle, work_fn work);
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#endif /* HAVE_LIBVIRT */
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#endif /* GUESTFS_PARALLEL_H_ */
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