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/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
/*
* Copyright 2010-2011 Andrea Canciani
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Author(s): Andrea Canciani <ranma42@gmail.com>
*/
#ifndef SIMPLEOPS_TSS_IMPL_WIN32_H
#define SIMPLEOPS_TSS_IMPL_WIN32_H
#ifndef SIMPLEOPS_TSS_IMPL_H
#error Private header used directly
#endif
#if ! SIMPLEOPS_HAVE_TSS_IMPL && \
defined(_WIN32)
#define SIMPLEOPS_HAVE_TSS_IMPL 1
#define SIMPLEOPS_HAVE_TSS_IMPL_WIN32 1
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
typedef struct _simpleops_tss {
struct _simpleops_tss *prev;
struct _simpleops_tss *next;
DWORD idx;
simpleops_tss_dtor_t dtor;
} *simpleops_tss_t;
#define _SIMPLEOPS_TSS_MTX SIMPLEOPS_ADD_PREFIX (_simpleops_tss_mtx)
#define _SIMPLEOPS_TSS_HEAD SIMPLEOPS_ADD_PREFIX (_simpleops_tss_head)
extern simpleops_mtx_t _SIMPLEOPS_TSS_MTX;
extern simpleops_tss_t *_SIMPLEOPS_TSS_HEAD;
static simpleops_always_inline int
simpleops_tss_create (simpleops_tss_t *key, simpleops_tss_dtor_t dtor)
{
*key = malloc (sizeof (*key));
if (SIMPLEOPS_UNLIKELY (key == NULL))
return simpleops_thrd_error;
simpleops_mtx_lock (&SIMPLEOPS_TSS_MTX);
key->link = &SIMPLEOPS_TSS_HEAD;
key->next = SIMPLEOPS_TSS_HEAD;
key->idx = TlsAlloc ();
key->dtor = dtor;
if (SIMPLEOPS_UNLIKELY (key->idx == TLS_OUT_OF_INDEXES)) {
simpleops_mtx_unlock (&SIMPLEOPS_TSS_MTX);
free (key);
*key = NULL;
return simpleops_thrd_error;
}
SIMPLEOPS_TSS_HEAD->link = &key->next;
SIMPLEOPS_TSS_HEAD = key;
simpleops_mtx_unlock (&SIMPLEOPS_TSS_MTX);
return simpleops_thrd_success;
}
static simpleops_always_inline void
simpleops_tss_delete (simpleops_tss_t key)
{
simpleops_mtx_lock (&SIMPLEOPS_TSS_MTX);
*key->link = key->next;
TlsFree (key->idx);
simpleops_mtx_unlock (&SIMPLEOPS_TSS_MTX);
free (key);
}
static simpleops_always_inline void *
simpleops_tss_get (simpleops_tss_t key)
{
return TlsGetValue (key->idx);
}
static simpleops_always_inline int
simpleops_tss_set (simpleops_tss_t key, void *val)
{
if (! TlsSetValue (key->idx, val))
return simpleops_thrd_error;
else
return simpleops_thrd_success;
}
#endif
#endif
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