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5a8502a494
Fixes <https://bugs.gnu.org/68087>. * libguile/scmsigs.h (scm_i_signals_pre_fork, scm_i_signals_post_fork): New declarations. (scm_i_signal_delivery_thread): Change type to SCM.. * libguile/threads.c (scm_all_threads): Adjust accordingly and exclude threads that have ‘t->exited’. Access ‘thread_count’ after grabbing ‘thread_admin_mutex’. * libguile/posix.c (scm_fork): Add calls to ‘scm_i_signals_pre_fork’ and ‘scm_i_signals_post_fork’. * libguile/scmsigs.c (signal_delivery_thread): Close signal_pipe[0] upon exit and set it to -1. (once): New file-global variable, moved from… (scm_i_ensure_signal_delivery_thread): … here. (stop_signal_delivery_thread, scm_i_signals_pre_fork) (scm_i_signals_post_fork): New functions. * test-suite/standalone/test-sigaction-fork: New file. * test-suite/standalone/Makefile.am (check_SCRIPTS, TESTS): Add it.
51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
#ifndef SCM_SCMSIGS_H
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#define SCM_SCMSIGS_H
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/* Copyright 1995-1998,2000,2002,2006-2008,2018,2023
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Free Software Foundation, Inc.
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This file is part of Guile.
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Guile is free software: you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Guile is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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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
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License along with Guile. If not, see
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<https://www.gnu.org/licenses/>. */
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#include "libguile/scm.h"
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SCM_API SCM scm_sigaction (SCM signum, SCM handler, SCM flags);
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SCM_API SCM scm_sigaction_for_thread (SCM signum, SCM handler, SCM flags,
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SCM thread);
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SCM_API SCM scm_restore_signals (void);
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SCM_API SCM scm_alarm (SCM i);
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SCM_API SCM scm_setitimer (SCM which_timer,
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SCM interval_seconds, SCM interval_microseconds,
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SCM value_seconds, SCM value_microseconds);
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SCM_API SCM scm_getitimer (SCM which_timer);
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SCM_API SCM scm_pause (void);
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SCM_API SCM scm_sleep (SCM i);
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SCM_API SCM scm_usleep (SCM i);
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SCM_API SCM scm_raise (SCM sig);
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SCM_INTERNAL void scm_init_scmsigs (void);
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SCM_INTERNAL void scm_i_close_signal_pipe (void);
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SCM_INTERNAL void scm_i_ensure_signal_delivery_thread (void);
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SCM_INTERNAL void scm_i_signals_pre_fork (void);
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SCM_INTERNAL void scm_i_signals_post_fork (void);
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SCM_INTERNAL SCM scm_i_signal_delivery_thread;
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#endif /* SCM_SCMSIGS_H */
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