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b2bc16591a
The interruptible_usleep() function returned 1 on interruption (error) and 0 on success, opposite to LVM2 convention where 1=success, 0=failure. Changes: - Rename to sigint_usleep() to align with sigint_*() function family - Invert return: 1 if sleep completed, 0 if interrupted - Update all call sites to use ! operator for error checking This makes the API more intuitive as ! clearly indicates error path and return values match standard LVM2 conventions. Co-Authored-By: Claude <noreply@anthropic.com>
35 lines
1002 B
C
35 lines
1002 B
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2014 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _LVM_SIGNAL_H
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#define _LVM_SIGNAL_H
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#include <stdint.h>
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#include <unistd.h>
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void remove_ctrl_c_handler(void);
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void install_ctrl_c_handler(void);
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int init_signals(int suppress_messages);
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void sigint_allow(void);
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int sigint_caught(void);
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void sigint_restore(void);
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void sigint_clear(void);
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int sigint_usleep(useconds_t usec);
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void block_signals(uint32_t flags);
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void unblock_signals(void);
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#endif
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