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/* Copyright (C) 2021 Free Software Foundation, Inc.
Contributed by Oracle.
This file is part of GNU Binutils.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
/* Thread-specific data */
#ifndef _TSD_H
#define _TSD_H
#include <sys/types.h>
int __collector_tsd_init ();
/* Function: Init tsd module. Call once before using other functions.
MT-Level: Unsafe
Return: 0 if successful
*/
void __collector_tsd_fini ();
/* Function: Shutdown tsd module.
MT-Level: Unsafe
Return: None
*/
void __collector_tsd_fork_child_cleanup ();
/* Function: Reset tsd module. Call immediately after fork() in child process.
MT-Level: Unsafe
Return: None
*/
int __collector_tsd_allocate ();
/* Function: Allocate thread info.
Call from threads before using tsd_get_by_key().
Call from main thread should be made before calls from other threads.
MT-Level: First call is unsafe. Safe afterwards.
Return: 0 if successful
*/
void __collector_tsd_release ();
/* Function: Free thread info.
Call from threads just before thread termination.
MT-Level: Safe
Return: None
*/
#define COLLECTOR_TSD_INVALID_KEY ((unsigned)-1)
unsigned __collector_tsd_create_key (size_t memsize, void (*init)(void*), void (*fini)(void*));
/* Function: Reserve TDS memory.
MT-Level: Unsafe
Inputs: <memsize>: number of bytes to reserve
<init>: key memory initialization. Must be callable even if
the associated thread has not yet been created.
<fini>: key memory finalization. Must be callable even if
the associated thread has been terminated.
Return: key or COLLECTOR_TSD_INVALID_KEY if not successful.
*/
void *__collector_tsd_get_by_key (unsigned key);
/* Function: Get TSD memory.
Call from threads after calling tsd_allocate().
MT-Level: Safe
Inputs: <key>: return value from tsd_create_key()
Return: memory if successful, NULL otherwise
*/
#endif /* _TSD_H */
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