v1.4.4

source/core/StarByteArray.cpp

@@ -0,0 +1,258 @@
+#include "StarByteArray.hpp"
+#include "StarEncode.hpp"
+
+namespace Star {
+
+ByteArray ByteArray::fromCString(char const* str) {
+  return ByteArray(str, strlen(str));
+}
+
+ByteArray ByteArray::fromCStringWithNull(char const* str) {
+  size_t len = strlen(str);
+  ByteArray ba(str, len + 1);
+  ba[len] = 0;
+  return ba;
+}
+
+ByteArray ByteArray::withReserve(size_t capacity) {
+  ByteArray bytes;
+  bytes.reserve(capacity);
+  return bytes;
+}
+
+ByteArray::ByteArray() {
+  m_data = nullptr;
+  m_capacity = 0;
+  m_size = 0;
+}
+
+ByteArray::ByteArray(size_t dataSize, char c)
+  : ByteArray() {
+  fill(dataSize, c);
+}
+
+ByteArray::ByteArray(const char* data, size_t dataSize)
+  : ByteArray() {
+  append(data, dataSize);
+}
+
+ByteArray::ByteArray(ByteArray const& b)
+  : ByteArray() {
+  operator=(b);
+}
+
+ByteArray::ByteArray(ByteArray&& b) noexcept
+  : ByteArray() {
+  operator=(move(b));
+}
+
+ByteArray::~ByteArray() {
+  reset();
+}
+
+ByteArray& ByteArray::operator=(ByteArray const& b) {
+  if (&b != this) {
+    clear();
+    append(b);
+  }
+
+  return *this;
+}
+
+ByteArray& ByteArray::operator=(ByteArray&& b) noexcept {
+  if (&b != this) {
+    reset();
+
+    m_data = take(b.m_data);
+    m_capacity = take(b.m_capacity);
+    m_size = take(b.m_size);
+  }
+
+  return *this;
+}
+
+void ByteArray::reset() {
+  if (m_data) {
+    Star::free(m_data, m_capacity);
+    m_data = nullptr;
+    m_capacity = 0;
+    m_size = 0;
+  }
+}
+
+void ByteArray::reserve(size_t newCapacity) {
+  if (newCapacity > m_capacity) {
+    if (!m_data) {
+      auto newMem = (char*)Star::malloc(newCapacity);
+      if (!newMem)
+        throw MemoryException::format("Could not set new ByteArray capacity %s\n", newCapacity);
+      m_data = newMem;
+      m_capacity = newCapacity;
+    } else {
+      newCapacity = max({m_capacity * 2, newCapacity, (size_t)8});
+      auto newMem = (char*)Star::realloc(m_data, newCapacity);
+      if (!newMem)
+        throw MemoryException::format("Could not set new ByteArray capacity %s\n", newCapacity);
+      m_data = newMem;
+      m_capacity = newCapacity;
+    }
+  }
+}
+
+void ByteArray::resize(size_t size, char f) {
+  if (m_size == size)
+    return;
+
+  size_t oldSize = m_size;
+  resize(size);
+  for (size_t i = oldSize; i < m_size; ++i)
+    (*this)[i] = f;
+}
+
+void ByteArray::fill(size_t s, char c) {
+  if (s != NPos)
+    resize(s);
+
+  memset(m_data, c, m_size);
+}
+
+void ByteArray::fill(char c) {
+  fill(NPos, c);
+}
+
+ByteArray ByteArray::sub(size_t b, size_t s) const {
+  if (b == 0 && s >= m_size) {
+    return ByteArray(*this);
+  } else {
+    return ByteArray(m_data + b, min(m_size, b + s));
+  }
+}
+
+ByteArray ByteArray::left(size_t s) const {
+  return sub(0, s);
+}
+
+ByteArray ByteArray::right(size_t s) const {
+  if (s > m_size)
+    s = 0;
+  else
+    s = m_size - s;
+
+  return sub(s, m_size);
+}
+
+void ByteArray::trimLeft(size_t s) {
+  if (s >= m_size) {
+    clear();
+  } else {
+    std::memmove(m_data, m_data + s, m_size - s);
+    resize(m_size - s);
+  }
+}
+
+void ByteArray::trimRight(size_t s) {
+  if (s >= m_size)
+    clear();
+  else
+    resize(m_size - s);
+}
+
+size_t ByteArray::diffChar(const ByteArray& b) const {
+  size_t s = min(m_size, b.size());
+  char* ac = m_data;
+  char* bc = b.m_data;
+  size_t i;
+  for (i = 0; i < s; ++i) {
+    if (ac[i] != bc[i])
+      break;
+  }
+
+  return i;
+}
+
+int ByteArray::compare(const ByteArray& b) const {
+  if (m_size == 0 && b.m_size == 0)
+    return 0;
+
+  if (m_size == 0)
+    return -1;
+
+  if (b.m_size == 0)
+    return 1;
+
+  size_t d = diffChar(b);
+  if (d == m_size) {
+    if (d != b.m_size)
+      return -1;
+    else
+      return 0;
+  }
+
+  if (d == b.m_size) {
+    if (d != m_size)
+      return 1;
+    else
+      return 0;
+  }
+
+  unsigned char c1 = (*this)[d];
+  unsigned char c2 = b[d];
+
+  if (c1 < c2) {
+    return -1;
+  } else if (c1 > c2) {
+    return 1;
+  } else {
+    return 0;
+  }
+}
+
+ByteArray ByteArray::andWith(ByteArray const& rhs, bool extend) {
+  return combineWith([](char a, char b) { return a & b; }, rhs, extend);
+}
+
+ByteArray ByteArray::orWith(ByteArray const& rhs, bool extend) {
+  return combineWith([](char a, char b) { return a | b; }, rhs, extend);
+}
+
+ByteArray ByteArray::xorWith(ByteArray const& rhs, bool extend) {
+  return combineWith([](char a, char b) { return a ^ b; }, rhs, extend);
+}
+
+void ByteArray::insert(size_t pos, char byte) {
+  starAssert(pos <= m_size);
+  resize(m_size + 1);
+  for (size_t i = m_size - 1; i > pos; --i)
+    m_data[i] = m_data[i - 1];
+  m_data[pos] = byte;
+}
+
+ByteArray::iterator ByteArray::insert(const_iterator pos, char byte) {
+  size_t d = pos - begin();
+  insert(d, byte);
+  return begin() + d + 1;
+}
+
+void ByteArray::push_back(char byte) {
+  resize(m_size + 1);
+  m_data[m_size - 1] = byte;
+}
+
+bool ByteArray::operator<(const ByteArray& b) const {
+  return compare(b) < 0;
+}
+
+bool ByteArray::operator==(const ByteArray& b) const {
+  return compare(b) == 0;
+}
+
+bool ByteArray::operator!=(const ByteArray& b) const {
+  return compare(b) != 0;
+}
+
+std::ostream& operator<<(std::ostream& os, const ByteArray& b) {
+  os << "0x" << hexEncode(b);
+  return os;
+}
+
+}