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e0213a6953
We no longer use the address field, and the name is always a size_t offset in the string pool (never a dynamic strduped name). Acked-by: Marek Olšák <marek.olsak@amd.com> Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Adam Jackson <ajax@redhat.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23451>
125 lines
3 KiB
C
125 lines
3 KiB
C
/*
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* Mesa 3-D graphics library
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*
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* Copyright (C) 2010 LunarG Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Chia-I Wu <olv@lunarg.com>
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include "c11/threads.h"
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#include "util/macros.h"
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#include "util/simple_mtx.h"
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#include "u_current.h"
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#include "entry.h"
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#include "stub.h"
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#include "table.h"
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struct mapi_stub {
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size_t name_offset;
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int slot;
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};
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/* define public_string_pool and public_stubs */
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#define MAPI_TMP_PUBLIC_STUBS
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#include "mapi_tmp.h"
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void
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stub_init_once(void)
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{
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static once_flag flag = ONCE_FLAG_INIT;
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call_once(&flag, entry_patch_public);
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}
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static int
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stub_compare(const void *key, const void *elem)
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{
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const char *name = (const char *) key;
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const struct mapi_stub *stub = (const struct mapi_stub *) elem;
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const char *stub_name;
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stub_name = &public_string_pool[stub->name_offset];
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return strcmp(name, stub_name);
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}
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/**
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* Return the public stub with the given name.
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*/
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const struct mapi_stub *
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stub_find_public(const char *name)
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{
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return (const struct mapi_stub *) bsearch(name, public_stubs,
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ARRAY_SIZE(public_stubs), sizeof(public_stubs[0]), stub_compare);
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}
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static const struct mapi_stub *
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search_table_by_slot(const struct mapi_stub *table, size_t num_entries,
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int slot)
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{
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size_t i;
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for (i = 0; i < num_entries; ++i) {
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if (table[i].slot == slot)
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return &table[i];
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}
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return NULL;
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}
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const struct mapi_stub *
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stub_find_by_slot(int slot)
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{
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const struct mapi_stub *stub =
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search_table_by_slot(public_stubs, ARRAY_SIZE(public_stubs), slot);
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return stub;
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}
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/**
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* Return the name of a stub.
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*/
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const char *
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stub_get_name(const struct mapi_stub *stub)
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{
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return &public_string_pool[stub->name_offset];
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}
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/**
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* Return the slot of a stub.
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*/
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int
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stub_get_slot(const struct mapi_stub *stub)
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{
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return stub->slot;
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}
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/**
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* Return the address of a stub.
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*/
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mapi_func
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stub_get_addr(const struct mapi_stub *stub)
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{
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return entry_get_public(stub->slot);
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}
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