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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 12:15:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 12:15:43 +0000 |
commit | f5f56e1a1c4d9e9496fcb9d81131066a964ccd23 (patch) | |
tree | 49e44c6f87febed37efb953ab5485aa49f6481a7 /src/lib/util/memory_segment_local.cc | |
parent | Initial commit. (diff) | |
download | isc-kea-f5f56e1a1c4d9e9496fcb9d81131066a964ccd23.tar.xz isc-kea-f5f56e1a1c4d9e9496fcb9d81131066a964ccd23.zip |
Adding upstream version 2.4.1.upstream/2.4.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/lib/util/memory_segment_local.cc')
-rw-r--r-- | src/lib/util/memory_segment_local.cc | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/lib/util/memory_segment_local.cc b/src/lib/util/memory_segment_local.cc new file mode 100644 index 0000000..2331e4b --- /dev/null +++ b/src/lib/util/memory_segment_local.cc @@ -0,0 +1,71 @@ +// Copyright (C) 2012-2015 Internet Systems Consortium, Inc. ("ISC") +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#include <config.h> + +#include <util/memory_segment_local.h> +#include <exceptions/exceptions.h> + +namespace isc { +namespace util { + +void* +MemorySegmentLocal::allocate(size_t size) { + void* ptr = malloc(size); + if (ptr == NULL) { + throw std::bad_alloc(); + } + + allocated_size_ += size; + return (ptr); +} + +void +MemorySegmentLocal::deallocate(void* ptr, size_t size) { + if (ptr == NULL) { + // Return early if NULL is passed to be deallocated (without + // modifying allocated_size, or comparing against it). + return; + } + + if (size > allocated_size_) { + isc_throw(OutOfRange, "Invalid size to deallocate: " << size + << "; currently allocated size: " << allocated_size_); + } + + allocated_size_ -= size; + free(ptr); +} + +bool +MemorySegmentLocal::allMemoryDeallocated() const { + return (allocated_size_ == 0 && named_addrs_.empty()); +} + +MemorySegment::NamedAddressResult +MemorySegmentLocal::getNamedAddressImpl(const char* name) const { + std::map<std::string, void*>::const_iterator found = + named_addrs_.find(name); + if (found != named_addrs_.end()) { + return (NamedAddressResult(true, found->second)); + } + return (NamedAddressResult(false, static_cast<void*>(0))); +} + +bool +MemorySegmentLocal::setNamedAddressImpl(const char* name, void* addr) { + named_addrs_[name] = addr; + return (false); +} + +bool +MemorySegmentLocal::clearNamedAddressImpl(const char* name) { + const size_t n_erased = named_addrs_.erase(name); + return (n_erased != 0); +} + +} // namespace util +} // namespace isc |