Hawkin
/
arangodb
mirror of https://gitee.com/bigwinds/arangodb
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

simplified

This commit is contained in:
Jan Steemann 2014-06-21 02:39:26 +02:00
parent a71d30bde0
commit 72f54eee21
1 changed files with 11 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
arangod/VocBase/primary-index.cpp
View File

@ -107,24 +107,22 @@ static bool ResizePrimaryIndex (TRI_primary_index_t* idx,
/// @brief comparison function, compares a master pointer to another /// @brief comparison function, compares a master pointer to another
//////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////
static inline bool IsEqualKeyElement (TRI_doc_mptr_t const* header, static inline bool IsDifferentKeyElement (TRI_doc_mptr_t const* header,
void const* element) { void const* element) {
TRI_doc_mptr_t const* e = static_cast<TRI_doc_mptr_t const*>(element); TRI_doc_mptr_t const* e = static_cast<TRI_doc_mptr_t const*>(element);
// only after that compare actual keys // only after that compare actual keys
return (header->_hash == e->_hash && return (header->_hash != e->_hash || strcmp(TRI_EXTRACT_MARKER_KEY(header), TRI_EXTRACT_MARKER_KEY(e)) != 0); // ONLY IN INDEX, PROTECTED by RUNTIME
strcmp(TRI_EXTRACT_MARKER_KEY(header), TRI_EXTRACT_MARKER_KEY(e)) == 0); // ONLY IN INDEX, PROTECTED by RUNTIME
} }
//////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////
/// @brief comparison function, compares a hash/key to a master pointer /// @brief comparison function, compares a hash/key to a master pointer
//////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////
static inline bool IsEqualHashElement (char const* key, uint64_t hash, void const* element) { static inline bool IsDifferentHashElement (char const* key, uint64_t hash, void const* element) {
TRI_doc_mptr_t const* e = static_cast<TRI_doc_mptr_t const*>(element); TRI_doc_mptr_t const* e = static_cast<TRI_doc_mptr_t const*>(element);
return (hash == e->_hash && return (hash != e->_hash || strcmp(key, TRI_EXTRACT_MARKER_KEY(e)) != 0); // ONLY IN INDEX, PROTECTED by RUNTIME
strcmp(key, TRI_EXTRACT_MARKER_KEY(e)) == 0); // ONLY IN INDEX, PROTECTED by RUNTIME
} }
// ----------------------------------------------------------------------------- // -----------------------------------------------------------------------------
@ -185,9 +183,9 @@ void* TRI_LookupByKeyPrimaryIndex (TRI_primary_index_t* idx,
TRI_ASSERT_EXPENSIVE(n > 0); TRI_ASSERT_EXPENSIVE(n > 0);
// search the table // search the table
for (; i < n && idx->_table[i] != nullptr && ! IsEqualHashElement((char const*) key, hash, idx->_table[i]); ++i); for (; i < n && idx->_table[i] != nullptr && IsDifferentHashElement((char const*) key, hash, idx->_table[i]); ++i);
if (i == n) { if (i == n) {
for (i = 0; i < k && idx->_table[i] != nullptr && ! IsEqualHashElement((char const*) key, hash, idx->_table[i]); ++i); for (i = 0; i < k && idx->_table[i] != nullptr && IsDifferentHashElement((char const*) key, hash, idx->_table[i]); ++i);
} }
TRI_ASSERT_EXPENSIVE(i < n); TRI_ASSERT_EXPENSIVE(i < n);
@ -220,9 +218,9 @@ int TRI_InsertKeyPrimaryIndex (TRI_primary_index_t* idx,
i = k = header->_hash % n; i = k = header->_hash % n;
for (; i < n && idx->_table[i] != nullptr && ! IsEqualKeyElement(header, idx->_table[i]); ++i); for (; i < n && idx->_table[i] != nullptr && IsDifferentKeyElement(header, idx->_table[i]); ++i);
if (i == n) { if (i == n) {
for (i = 0; i < k && idx->_table[i] != nullptr && ! IsEqualKeyElement(header, idx->_table[i]); ++i); for (i = 0; i < k && idx->_table[i] != nullptr && IsDifferentKeyElement(header, idx->_table[i]); ++i);
} }
TRI_ASSERT_EXPENSIVE(i < n); TRI_ASSERT_EXPENSIVE(i < n);
@ -256,9 +254,9 @@ void* TRI_RemoveKeyPrimaryIndex (TRI_primary_index_t* idx,
i = k = hash % n; i = k = hash % n;
// search the table // search the table
for (; i < n && idx->_table[i] != nullptr && ! IsEqualHashElement((char const*) key, hash, idx->_table[i]); ++i); for (; i < n && idx->_table[i] != nullptr && IsDifferentHashElement((char const*) key, hash, idx->_table[i]); ++i);
if (i == n) { if (i == n) {
for (i = 0; i < k && idx->_table[i] != nullptr && ! IsEqualHashElement((char const*) key, hash, idx->_table[i]); ++i); for (i = 0; i < k && idx->_table[i] != nullptr && IsDifferentHashElement((char const*) key, hash, idx->_table[i]); ++i);
} }
TRI_ASSERT_EXPENSIVE(i < n); TRI_ASSERT_EXPENSIVE(i < n);