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Add lazy init to array/hash, rename 64bit max num, minor bug fixes

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Doyle T 2018-07-15 02:17:34 +10:00
parent 964304d1b7
commit 9d12c532d1
2 changed files with 54 additions and 46 deletions
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10
DqnUnitTest.cpp
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@ -206,27 +206,27 @@ void Dqn_Test()
// i64 to str
if (1)
{
char a[DQN_64BIT_NUM_MAX_STR_SIZE] = {};
char a[DQN_I64_MAX_STR_SIZE] = {};
Dqn_I64ToStr(+100, a, DQN_ARRAY_COUNT(a));
DQN_ASSERT(DqnStr_Cmp(a, "100") == 0);
char b[DQN_64BIT_NUM_MAX_STR_SIZE] = {};
char b[DQN_I64_MAX_STR_SIZE] = {};
Dqn_I64ToStr(-100, b, DQN_ARRAY_COUNT(b));
DQN_ASSERT(DqnStr_Cmp(b, "-100") == 0);
char c[DQN_64BIT_NUM_MAX_STR_SIZE] = {};
char c[DQN_I64_MAX_STR_SIZE] = {};
Dqn_I64ToStr(0, c, DQN_ARRAY_COUNT(c));
DQN_ASSERT(DqnStr_Cmp(c, "0") == 0);
#if 0
char d[DQN_64BIT_NUM_MAX_STR_SIZE] = {};
char d[DQN_I64_MAX_STR_SIZE] = {};
Dqn_I64ToStr(LARGEST_NUM, d, DQN_ARRAY_COUNT(d));
DQN_ASSERT(DqnStr_Cmp(d, "18446744073709551615") == 0);
#endif
if (sizeof(size_t) == sizeof(u64))
{
char e[DQN_64BIT_NUM_MAX_STR_SIZE] = {};
char e[DQN_I64_MAX_STR_SIZE] = {};
Dqn_I64ToStr(SMALLEST_NUM, e, DQN_ARRAY_COUNT(e));
DQN_ASSERTM(DqnStr_Cmp(e, "-9223372036854775808") == 0, "e: %s", e);
}

90
dqn.h
View File

@ -122,9 +122,9 @@ using b32 = i32;
using f64 = double;
using f32 = float;
#define DQN_F32_MIN -FLT_MAX;
#define DQN_I64_MAX INT64_MAX;
#define DQN_U64_MAX UINT64_MAX;
#define DQN_F32_MIN -FLT_MAX
#define DQN_I64_MAX INT64_MAX
#define DQN_U64_MAX UINT64_MAX
#define DQN_TERABYTE(val) (DQN_GIGABYTE(val) * 1024LL)
@ -150,6 +150,7 @@ using f32 = float;
#define DQN_DEGREES_TO_RADIANS(x) ((x * (DQN_PI / 180.0f)))
#define DQN_RADIANS_TO_DEGREES(x) ((x * (180.0f / DQN_PI)))
#define DQN_CLAMP(value, min, max) DQN_MIN(DQN_MAX(value, min), max)
#define DQN_MAX(a, b) ((a) < (b) ? (b) : (a))
#define DQN_MIN(a, b) ((a) < (b) ? (a) : (b))
#define DQN_SWAP(type, a, b) do { type tmp = a; a = b; b = tmp; } while(0)
@ -832,8 +833,8 @@ DQN_FILE_SCOPE inline DqnSlice<char> DqnStr_RemoveLeadTrailQuotes (char const *s
DQN_FILE_SCOPE inline DqnSlice<char> DqnStr_RemoveLeadTrailBraces (char const *str, i32 strLen);
#define DQN_32BIT_NUM_MAX_STR_SIZE 11
#define DQN_64BIT_NUM_MAX_STR_SIZE 21
#define DQN_I32_MAX_STR_SIZE 11
#define DQN_I64_MAX_STR_SIZE 21
// Return the len of the derived string. If buf is nullptr and or bufSize is 0 the function returns the
// required string length for the integer
// TODO NOTE(doyle): Parsing stops when a non-digit is encountered, so numbers with ',' don't work atm.
@ -1324,7 +1325,7 @@ struct DqnArray
~DqnArray () { if (this->data && this->memAPI) this->memAPI->Free(data); }
void UseMemory (T *data_, isize max_, isize count_ = 0) { this->memAPI = nullptr; this->data = data_; this->max = max_; this->count = count_; }
void Clear (Dqn::ZeroClear clear = Dqn::ZeroClear::Yes) { if (data) { count = 0; if (clear == Dqn::ZeroClear::Yes) DqnMem_Clear(data, 0, sizeof(T) * max); } }
void Clear (Dqn::ZeroClear clear = Dqn::ZeroClear::No) { if (data) { count = 0; if (clear == Dqn::ZeroClear::Yes) DqnMem_Clear(data, 0, sizeof(T) * max); } }
void Free () { if (data) { memAPI->Free(data); } *this = {}; }
T *Front () { DQN_ASSERT(count > 0); return data + 0; }
T *Back () { DQN_ASSERT(count > 0); return data + (count - 1); }
@ -2333,25 +2334,6 @@ int DqnFixedString<MAX>::SprintfAppend(char const *fmt, ...)
return result;
}
template <typename Key> using DqnVHashTableHashingProc = isize(*)(isize count, Key const &data);
template <typename Key> using DqnVHashTableEqualsProc = bool (*)(Key const &a, Key const &b);
#define DQN_VHASH_TABLE_HASHING_PROC(name) template <typename Key> inline isize name(isize count, Key const &key)
DQN_VHASH_TABLE_HASHING_PROC(DqnVHashTableDefaultHash)
{
const u64 SEED = 0x9747B28CAB3F8A7B;
u64 index64 = DqnHash_Murmur64Seed(&key, sizeof(key), SEED);
isize result = index64 % count;
return result;
}
#define DQN_VHASH_TABLE_EQUALS_PROC(name) template <typename Key> inline bool name(Key const &a, Key const &b)
DQN_VHASH_TABLE_EQUALS_PROC(DqnVHashTableDefaultEquals)
{
bool result = (DqnMem_Cmp(&a, &b, sizeof(a)) == 0);
return result;
}
// TODO(doyle): Load factor
// #DqnHashTable API
// =================================================================================================
@ -2914,22 +2896,25 @@ struct DqnVArray
isize max; // Read
T *data; // Read
DqnVArray () { count = 0; max = DQN_MEGABYTE(1) / sizeof(T); data = (T *)DqnOS_VAlloc(max * sizeof(T)); DQN_ASSERT(data); }
~DqnVArray () { if (data) DqnOS_VFree(data, sizeof(T) * max); }
void Clear (Dqn::ZeroClear clear = Dqn::ZeroClear::Yes) { if (data) { count = 0; if (clear == Dqn::ZeroClear::Yes) DqnMem_Clear(data, 0, sizeof(T) * max); } }
DqnVArray () = default;
DqnVArray (isize size) { LazyInit(size); }
void LazyInit (isize size) { if (data) return; count = 0; max = size; data = (T *)DqnOS_VAlloc(max * sizeof(T)); DQN_ALWAYS_ASSERT(data); }
~DqnVArray () { if (data) DqnOS_VFree(data, sizeof(T) * max); }
void Clear (Dqn::ZeroClear clear = Dqn::ZeroClear::No) { if (data) { count = 0; if (clear == Dqn::ZeroClear::Yes) DqnMem_Clear(data, 0, sizeof(T) * max); } }
void Free () { if (data) { DqnOS_VFree(data, sizeof(T) * max); } *this = {}; }
T *Front () { DQN_ASSERT(count > 0); return data + 0; }
T *Back () { DQN_ASSERT(count > 0); return data + (count - 1); }
T *Make (isize num = 1) { count += num; DQN_ASSERT(count < max); return &data[count - num]; }
T *Front () { return (count > 0) (data + 0) : nullptr; }
T *Back () { return (count > 0) (data + (count - 1)) : nullptr; }
T *Make (isize num = 1) { LazyInit(1024); count += num; DQN_ASSERT(count < max); return &data[count - num]; }
T *Push (T const &v) { return Insert(count, &v, 1); }
T *Push (T const *v, isize numItems = 1) { return Insert(count, v, numItems); }
void Pop () { if (count > 0) count--; }
void Erase (isize index) { DQN_ASSERT(index >= 0 && index < count); data[index] = data[--count]; }
void Erase (isize index) { if (!data) return; DQN_ASSERT(index >= 0 && index < count); data[index] = data[--count]; }
void EraseStable(isize index);
T *Insert (isize index, T const *v) { return Insert(index, v, 1); }
T *Insert (isize index, T const &v) { return Insert(index, &v, 1); }
T *Insert (isize index, T const *v, isize numItems);
bool Contains (T const *v) const { T const *ptr = data; T const *end = data + count; while (ptr < end) if (*ptr++ == *v) return true; return false; }
bool Contains (T const *v) const { T const *ptr = data; T const *end = data + count; while (ptr < end) { if (*ptr++ == *v) return true; } return false; }
T &operator[] (isize i) const { DQN_ASSERT(i < count && i > 0); return this->data[i]; }
T *begin () { return data; }
@ -2938,7 +2923,9 @@ struct DqnVArray
template<typename T> T *DqnVArray<T>::Insert(isize index, T const *v, isize numItems)
{
index = DQN_MIN(DQN_MAX(index, 0), count);
LazyInit(1024);
index = DQN_CLAMP(index, 0, count);
isize const newCount = count + numItems;
DQN_ASSERT(newCount < max);
@ -2957,6 +2944,7 @@ template<typename T> T *DqnVArray<T>::Insert(isize index, T const *v, isize numI
template <typename T> void DqnVArray<T>::EraseStable(isize index)
{
if (!data) return;
DQN_ASSERT(index >= 0 && index < count);
isize const off = (data + index) - data;
memmove(data + off, data + off + 1, ((usize)count - (usize)off - 1) * sizeof(T));
@ -2965,6 +2953,25 @@ template <typename T> void DqnVArray<T>::EraseStable(isize index)
// #XPlatform > #DqnVHashTable API
// =================================================================================================
template <typename Key> using DqnVHashTableHashingProc = isize(*)(isize count, Key const &data);
template <typename Key> using DqnVHashTableEqualsProc = bool (*)(Key const &a, Key const &b);
#define DQN_VHASH_TABLE_HASHING_PROC(name) template <typename Key> inline isize name(isize count, Key const &key)
DQN_VHASH_TABLE_HASHING_PROC(DqnVHashTableDefaultHash)
{
const u64 SEED = 0x9747B28CAB3F8A7B;
u64 index64 = DqnHash_Murmur64Seed(&key, sizeof(key), SEED);
isize result = index64 % count;
return result;
}
#define DQN_VHASH_TABLE_EQUALS_PROC(name) template <typename Key> inline bool name(Key const &a, Key const &b)
DQN_VHASH_TABLE_EQUALS_PROC(DqnVHashTableDefaultEquals)
{
bool result = (DqnMem_Cmp(&a, &b, sizeof(a)) == 0);
return result;
}
#define DQN_VHASH_TABLE_TEMPLATE \
template <typename Key, \
typename Item, \
@ -2992,22 +2999,21 @@ DQN_VHASH_TABLE_TEMPLATE struct DqnVHashTable
isize bucketsUsed;
DqnVHashTable() = default;
DqnVHashTable(isize size) { LazyInitialise(size); }
DqnVHashTable(isize size) { LazyInit(size); }
~DqnVHashTable() { if (buckets) DqnOS_VFree(buckets, sizeof(buckets) * numBuckets); }
void Erase(Key const &key);
Item *Set (Key const &key, Item const &item);
Item *Get (Key const &key);
void LazyInit(isize size) { *this = {}; numBuckets = size; buckets = static_cast<Bucket *>(DqnOS_VAlloc(numBuckets * sizeof(*buckets))); DQN_ASSERT(buckets); }
void Erase (Key const &key);
Item *Set (Key const &key, Item const &item);
Item *Get (Key const &key);
Item *operator[](Key const &key) { return Get(key); }
private:
void LazyInitialise(isize size) { *this = {}; numBuckets = size; buckets = static_cast<Bucket *>(DqnOS_VAlloc(numBuckets * sizeof(*buckets))); DQN_ASSERT(buckets); }
};
DQN_VHASH_TABLE_TEMPLATE Item *DQN_VHASH_TABLE_DECL::Set(Key const &key, Item const &item)
{
if (!buckets) LazyInitialise(1024);
if (!buckets) LazyInit(1024);
isize index = Hash(this->numBuckets, key);
Bucket *bucket = this->buckets + index;
@ -6972,6 +6978,8 @@ DQN_FILE_SCOPE i64 Dqn_BSearch(i64 *array, i64 size, i64 find,
DQN_FILE_SCOPE DqnJson DqnJson_Get(char const *buf, i32 bufLen, char const *findProperty, i32 findPropertyLen)
{
DqnJson result = {};
if (!buf || bufLen == 0 || !findProperty || findPropertyLen == 0) return result;
char const *tmp = DqnChar_SkipWhitespace(buf);
bufLen = static_cast<int>((buf + bufLen) - tmp);
buf = tmp;