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1 /**************************************************************************
2  *
3  * Copyright 2010 Younes Manton.
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the
8  * "Software"), to deal in the Software without restriction, including
9  * without limitation the rights to use, copy, modify, merge, publish,
10  * distribute, sub license, and/or sell copies of the Software, and to
11  * permit persons to whom the Software is furnished to do so, subject to
12  * the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the
15  * next paragraph) shall be included in all copies or substantial portions
16  * of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25  *
26  **************************************************************************/
27 
28 #include "util/u_handle_table.h"
29 #include "os/os_thread.h"
30 #include "vdpau_private.h"
31 
32 static struct handle_table *htab = NULL;
33 static mtx_t htab_lock = _MTX_INITIALIZER_NP;
34 
vlCreateHTAB(void)35 boolean vlCreateHTAB(void)
36 {
37    boolean ret;
38 
39    /* Make sure handle table handles match VDPAU handles. */
40    assert(sizeof(unsigned) <= sizeof(vlHandle));
41    mtx_lock(&htab_lock);
42    if (!htab)
43       htab = handle_table_create();
44    ret = htab != NULL;
45    mtx_unlock(&htab_lock);
46    return ret;
47 }
48 
vlDestroyHTAB(void)49 void vlDestroyHTAB(void)
50 {
51    mtx_lock(&htab_lock);
52    if (htab && !handle_table_get_first_handle(htab)) {
53       handle_table_destroy(htab);
54       htab = NULL;
55    }
56    mtx_unlock(&htab_lock);
57 }
58 
vlAddDataHTAB(void * data)59 vlHandle vlAddDataHTAB(void *data)
60 {
61    vlHandle handle = 0;
62 
63    assert(data);
64    mtx_lock(&htab_lock);
65    if (htab)
66       handle = handle_table_add(htab, data);
67    mtx_unlock(&htab_lock);
68    return handle;
69 }
70 
vlGetDataHTAB(vlHandle handle)71 void* vlGetDataHTAB(vlHandle handle)
72 {
73    void *data = NULL;
74 
75    assert(handle);
76    mtx_lock(&htab_lock);
77    if (htab)
78       data = handle_table_get(htab, handle);
79    mtx_unlock(&htab_lock);
80    return data;
81 }
82 
vlRemoveDataHTAB(vlHandle handle)83 void vlRemoveDataHTAB(vlHandle handle)
84 {
85    mtx_lock(&htab_lock);
86    if (htab)
87       handle_table_remove(htab, handle);
88    mtx_unlock(&htab_lock);
89 }
90