matrixfurry.com
The open source OpenXR runtime
util: Add function for u_hashset to allocate a item
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doc/changes/auxiliary/mr.359.2.md
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doc/changes/auxiliary/mr.359.2.md
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src/xrt/auxiliary/util/u_hashset.cpp
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src/xrt/auxiliary/util/u_hashset.cpp
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// Copyright 2019, Collabora, Ltd.
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// Copyright 2019-2020, Collabora, Ltd.
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// SPDX-License-Identifier: BSL-1.0
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/*!
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* @file
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* @ingroup aux_util
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*/
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#include "util/u_misc.h"
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#include "util/u_hashset.h"
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#include <cstring>
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std::string key = std::string(item->c_str(), item->length);
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hs->map[key] = item;
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return 0;
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}
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extern "C" int
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u_hashset_create_and_insert_str(struct u_hashset *hs,
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const char *str,
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size_t length,
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struct u_hashset_item **out_item)
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{
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struct u_hashset_item *dummy = NULL;
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struct u_hashset_item *item = NULL;
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size_t size = 0;
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int ret;
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ret = u_hashset_find_str(hs, str, length, &dummy);
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if (ret >= 0) {
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return -1;
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}
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size += sizeof(struct u_hashset_item); // Hashset item.
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size += length; // String.
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size += 1; // Null terminate it.
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// Now allocate and setup the path.
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item = U_CALLOC_WITH_CAST(struct u_hashset_item, size);
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if (item == NULL) {
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return -1;
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}
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item->length = length;
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// Yes a const cast! D:
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char *store = const_cast<char *>(item->c_str());
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for (size_t i = 0; i < length; i++) {
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store[i] = str[i];
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}
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store[length] = '\0';
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std::string key = std::string(item->c_str(), item->length);
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hs->map[key] = item;
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*out_item = item;
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return 0;
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}
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extern "C" int
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u_hashset_create_and_insert_str_c(struct u_hashset *hs,
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const char *c_str,
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struct u_hashset_item **out_item)
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{
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size_t length = strlen(c_str);
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return u_hashset_create_and_insert_str(hs, c_str, length, out_item);
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}
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extern "C" int
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src/xrt/auxiliary/util/u_hashset.h
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src/xrt/auxiliary/util/u_hashset.h
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// Copyright 2019, Collabora, Ltd.
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// Copyright 2019-2020, Collabora, Ltd.
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// SPDX-License-Identifier: BSL-1.0
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/*!
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* @file
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u_hashset_find_c_str(struct u_hashset *hs,
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const char *c_str,
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struct u_hashset_item **out_item);
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int
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u_hashset_create_and_insert_str(struct u_hashset *hs,
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const char *str,
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size_t length,
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struct u_hashset_item **out_item);
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int
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u_hashset_create_and_insert_str_c(struct u_hashset *hs,
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const char *c_str,
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struct u_hashset_item **out_item);
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int
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u_hashset_insert_item(struct u_hashset *hs, struct u_hashset_item *item);