80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/* Copyright (C) 2021 Free Software Foundation, Inc.
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Contributed by Oracle.
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This file is part of GNU Binutils.
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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, or (at your option)
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any later version.
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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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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, 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/* Thread-specific data */
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#ifndef _TSD_H
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#define _TSD_H
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#include <sys/types.h>
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int __collector_tsd_init ();
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/* Function: Init tsd module. Call once before using other functions.
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MT-Level: Unsafe
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Return: 0 if successful
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*/
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void __collector_tsd_fini ();
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/* Function: Shutdown tsd module.
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MT-Level: Unsafe
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Return: None
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*/
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void __collector_tsd_fork_child_cleanup ();
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/* Function: Reset tsd module. Call immediately after fork() in child process.
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MT-Level: Unsafe
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Return: None
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*/
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int __collector_tsd_allocate ();
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/* Function: Allocate thread info.
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Call from threads before using tsd_get_by_key().
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Call from main thread should be made before calls from other threads.
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MT-Level: First call is unsafe. Safe afterwards.
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Return: 0 if successful
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*/
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void __collector_tsd_release ();
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/* Function: Free thread info.
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Call from threads just before thread termination.
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MT-Level: Safe
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Return: None
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*/
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#define COLLECTOR_TSD_INVALID_KEY ((unsigned)-1)
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unsigned __collector_tsd_create_key (size_t memsize, void (*init)(void*), void (*fini)(void*));
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/* Function: Reserve TDS memory.
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MT-Level: Unsafe
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Inputs: <memsize>: number of bytes to reserve
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<init>: key memory initialization. Must be callable even if
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the associated thread has not yet been created.
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<fini>: key memory finalization. Must be callable even if
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the associated thread has been terminated.
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Return: key or COLLECTOR_TSD_INVALID_KEY if not successful.
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*/
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void *__collector_tsd_get_by_key (unsigned key);
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/* Function: Get TSD memory.
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Call from threads after calling tsd_allocate().
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MT-Level: Safe
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Inputs: <key>: return value from tsd_create_key()
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Return: memory if successful, NULL otherwise
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*/
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#endif /* _TSD_H */
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