weaselab/versioned-map
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Make sure types in ABI are standard layout

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This commit is contained in:
Andrew Noyes
2024-05-09 11:36:30 -07:00
parent f58409c21b
commit beabb8c690
2 changed files with 13 additions and 2 deletions
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6
VersionedMap.cpp
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@@ -22,7 +22,13 @@
bool debugVerboseEnabled = true; bool debugVerboseEnabled = true;
#endif #endif
static_assert(std::is_standard_layout_v<weaselab::VersionedMap::MutationType>);
static_assert(std::is_standard_layout_v<weaselab::VersionedMap::Key>);
static_assert(std::is_standard_layout_v<weaselab::VersionedMap::Mutation>);
static_assert(std::is_standard_layout_v<weaselab::VersionedMap::Iterator>);
static_assert(std::bidirectional_iterator<weaselab::VersionedMap::Iterator>); static_assert(std::bidirectional_iterator<weaselab::VersionedMap::Iterator>);
static_assert(std::is_standard_layout_v<
weaselab::VersionedMap::Iterator::VersionedMutation>);
void *mmapSafe(void *addr, size_t len, int prot, int flags, int fd, void *mmapSafe(void *addr, size_t len, int prot, int flags, int fd,
off_t offset) { off_t offset) {

9
include/VersionedMap.h
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@@ -104,7 +104,12 @@ struct VersionedMap {
Iterator(Iterator &&) noexcept; Iterator(Iterator &&) noexcept;
Iterator &operator=(Iterator &&) noexcept; Iterator &operator=(Iterator &&) noexcept;
struct VersionedMutation : Mutation { struct VersionedMutation {
const uint8_t *param1;
const uint8_t *param2;
int param1Len;
int param2Len;
MutationType type;
int64_t version; int64_t version;
}; };
@@ -122,7 +127,7 @@ struct VersionedMap {
Iterator operator--(int); Iterator operator--(int);
using difference_type = ptrdiff_t; using difference_type = ptrdiff_t;
using value_type = Mutation; using value_type = VersionedMutation;
bool operator==(const Iterator &) const; bool operator==(const Iterator &) const;
bool operator!=(const Iterator &) const; bool operator!=(const Iterator &) const;