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Diffstat (limited to 'src/mapi/mapi/stub.c')
-rw-r--r-- | src/mapi/mapi/stub.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/src/mapi/mapi/stub.c b/src/mapi/mapi/stub.c deleted file mode 100644 index 3594eac..0000000 --- a/src/mapi/mapi/stub.c +++ /dev/null @@ -1,166 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 7.9 - * - * Copyright (C) 2010 LunarG Inc. - * - * 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. - * - * Authors: - * Chia-I Wu <olv@lunarg.com> - */ - -#include <stdlib.h> -#include <stddef.h> /* for offsetof */ -#include <string.h> -#include <assert.h> - -#include "u_current.h" -#include "u_thread.h" -#include "entry.h" -#include "stub.h" -#include "table.h" - -#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0])) - -/* define public_string_pool and public_stubs */ -#define MAPI_TMP_PUBLIC_STUBS -#include "mapi_tmp.h" - -static struct mapi_stub dynamic_stubs[MAPI_TABLE_NUM_DYNAMIC]; -static int num_dynamic_stubs; -static int next_dynamic_slot = MAPI_TABLE_NUM_STATIC; - -void -stub_init_once(void) -{ -#ifdef PTHREADS - static pthread_once_t once = PTHREAD_ONCE_INIT; - pthread_once(&once, entry_patch_public); -#else - static int first = 1; - if (first) { - first = 0; - entry_patch_public(); - } -#endif -} - -static int -stub_compare(const void *key, const void *elem) -{ - const char *name = (const char *) key; - const struct mapi_stub *stub = (const struct mapi_stub *) elem; - const char *stub_name; - - stub_name = &public_string_pool[(unsigned long) stub->name]; - - return strcmp(name, stub_name); -} - -/** - * Return the public stub with the given name. - */ -const struct mapi_stub * -stub_find_public(const char *name) -{ - return (const struct mapi_stub *) bsearch(name, public_stubs, - ARRAY_SIZE(public_stubs), sizeof(public_stubs[0]), stub_compare); -} - -/** - * Add a dynamic stub. - */ -static struct mapi_stub * -stub_add_dynamic(const char *name) -{ - struct mapi_stub *stub; - int idx; - - idx = num_dynamic_stubs; - /* minus 1 to make sure we can never reach the last slot */ - if (idx >= MAPI_TABLE_NUM_DYNAMIC - 1) - return NULL; - - stub = &dynamic_stubs[idx]; - - /* dispatch to the last slot, which is reserved for no-op */ - stub->addr = entry_generate( - MAPI_TABLE_NUM_STATIC + MAPI_TABLE_NUM_DYNAMIC - 1); - if (!stub->addr) - return NULL; - - stub->name = (const void *) name; - /* to be fixed later */ - stub->slot = -1; - - num_dynamic_stubs = idx + 1; - - return stub; -} - -/** - * Return the dynamic stub with the given name. If no such stub exists and - * generate is true, a new stub is generated. - */ -struct mapi_stub * -stub_find_dynamic(const char *name, int generate) -{ - u_mutex_declare_static(dynamic_mutex); - struct mapi_stub *stub = NULL; - int count, i; - - u_mutex_lock(dynamic_mutex); - - if (generate) - assert(!stub_find_public(name)); - - count = num_dynamic_stubs; - for (i = 0; i < count; i++) { - if (strcmp(name, (const char *) dynamic_stubs[i].name) == 0) { - stub = &dynamic_stubs[i]; - break; - } - } - - /* generate a dynamic stub */ - if (generate && !stub) - stub = stub_add_dynamic(name); - - u_mutex_unlock(dynamic_mutex); - - return stub; -} - -void -stub_fix_dynamic(struct mapi_stub *stub, const struct mapi_stub *alias) -{ - int slot; - - if (stub->slot >= 0) - return; - - if (alias) - slot = alias->slot; - else - slot = next_dynamic_slot++; - - entry_patch(stub->addr, slot); - stub->slot = slot; -} |