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//===-- Implementation of hsearch_r -----------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/search/hsearch_r.h"
#include "src/__support/HashTable/table.h"
#include "src/errno/libc_errno.h"
namespace LIBC_NAMESPACE {
LLVM_LIBC_FUNCTION(int, hsearch_r,
(ENTRY item, ACTION action, ENTRY **retval,
struct hsearch_data *htab)) {
if (htab == nullptr) {
libc_errno = EINVAL;
return 0;
}
internal::HashTable *table =
static_cast<internal::HashTable *>(htab->__opaque);
switch (action) {
case FIND:
*retval = table->find(item.key);
if (*retval == nullptr) {
libc_errno = ESRCH;
return 0;
}
break;
case ENTER:
*retval = internal::HashTable::insert(table, item);
htab->__opaque = table;
if (*retval == nullptr) {
libc_errno = ENOMEM;
return 0;
}
break;
}
return 1;
}
} // namespace LIBC_NAMESPACE
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