diff options
author | Andrey Kleshchev <andreykproductengine@lindenlab.com> | 2024-06-10 17:06:06 +0300 |
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committer | Andrey Kleshchev <andreykproductengine@lindenlab.com> | 2024-06-10 19:25:02 +0300 |
commit | 0dcc912cecdfb365c1f4246545ece40ccb7bc18e (patch) | |
tree | ccf664c765d1adbbf4985069321df65c85ca36e2 /indra/llcorehttp/bufferarray.cpp | |
parent | bd8438f7083643ae5812b14e35e69e69ef1616c6 (diff) | |
parent | d317454c82e016a02c8a708a0118f3ff29aa8e82 (diff) |
Merge main into inventory_favorites
# Conflicts:
# indra/llui/llfolderviewmodel.h
# indra/newview/llpanelwearing.cpp
# indra/newview/llwearableitemslist.cpp
Diffstat (limited to 'indra/llcorehttp/bufferarray.cpp')
-rw-r--r-- | indra/llcorehttp/bufferarray.cpp | 414 |
1 files changed, 207 insertions, 207 deletions
diff --git a/indra/llcorehttp/bufferarray.cpp b/indra/llcorehttp/bufferarray.cpp index c780c06b4e..50a8d461a7 100644 --- a/indra/llcorehttp/bufferarray.cpp +++ b/indra/llcorehttp/bufferarray.cpp @@ -52,33 +52,33 @@ namespace LLCore class BufferArray::Block { public: - ~Block(); + ~Block(); - void operator delete(void *); - void operator delete(void *, size_t len); + void operator delete(void *); + void operator delete(void *, size_t len); protected: - Block(size_t len); + Block(size_t len); - Block(const Block &); // Not defined - void operator=(const Block &); // Not defined + Block(const Block &); // Not defined + void operator=(const Block &); // Not defined + + // Allocate the block with the additional space for the + // buffered data at the end of the object. + void * operator new(size_t len, size_t addl_len); - // Allocate the block with the additional space for the - // buffered data at the end of the object. - void * operator new(size_t len, size_t addl_len); - public: - // Only public entry to get a block. - static Block * alloc(size_t len); + // Only public entry to get a block. + static Block * alloc(size_t len); public: - size_t mUsed; - size_t mAlloced; + size_t mUsed; + size_t mAlloced; - // *NOTE: Must be last member of the object. We'll - // overallocate as requested via operator new and index - // into the array at will. - char mData[1]; + // *NOTE: Must be last member of the object. We'll + // overallocate as requested via operator new and index + // into the array at will. + char mData[1]; }; @@ -87,61 +87,61 @@ public: // ================================== -#if ! LL_WINDOWS +#if ! LL_WINDOWS const size_t BufferArray::BLOCK_ALLOC_SIZE; -#endif // ! LL_WINDOWS +#endif // ! LL_WINDOWS BufferArray::BufferArray() - : LLCoreInt::RefCounted(true), - mLen(0) + : LLCoreInt::RefCounted(true), + mLen(0) {} BufferArray::~BufferArray() { - for (container_t::iterator it(mBlocks.begin()); - it != mBlocks.end(); - ++it) - { - delete *it; - *it = NULL; - } - mBlocks.clear(); + for (container_t::iterator it(mBlocks.begin()); + it != mBlocks.end(); + ++it) + { + delete *it; + *it = NULL; + } + mBlocks.clear(); } size_t BufferArray::append(const void * src, size_t len) { - const size_t ret(len); - const char * c_src(static_cast<const char *>(src)); - - // First, try to copy into the last block - if (len && ! mBlocks.empty()) - { - Block & last(*mBlocks.back()); - if (last.mUsed < last.mAlloced) - { - // Some will fit... - const size_t copy_len((std::min)(len, (last.mAlloced - last.mUsed))); - - memcpy(&last.mData[last.mUsed], c_src, copy_len); - last.mUsed += copy_len; - llassert_always(last.mUsed <= last.mAlloced); - mLen += copy_len; - c_src += copy_len; - len -= copy_len; - } - } - - // Then get new blocks as needed - while (len) - { - const size_t copy_len((std::min)(len, BLOCK_ALLOC_SIZE)); - - if (mBlocks.size() >= mBlocks.capacity()) - { - mBlocks.reserve(mBlocks.size() + 5); - } + const size_t ret(len); + const char * c_src(static_cast<const char *>(src)); + + // First, try to copy into the last block + if (len && ! mBlocks.empty()) + { + Block & last(*mBlocks.back()); + if (last.mUsed < last.mAlloced) + { + // Some will fit... + const size_t copy_len((std::min)(len, (last.mAlloced - last.mUsed))); + + memcpy(&last.mData[last.mUsed], c_src, copy_len); + last.mUsed += copy_len; + llassert_always(last.mUsed <= last.mAlloced); + mLen += copy_len; + c_src += copy_len; + len -= copy_len; + } + } + + // Then get new blocks as needed + while (len) + { + const size_t copy_len((std::min)(len, BLOCK_ALLOC_SIZE)); + + if (mBlocks.size() >= mBlocks.capacity()) + { + mBlocks.reserve(mBlocks.size() + 5); + } Block * block; try { @@ -158,163 +158,163 @@ size_t BufferArray::append(const void * src, size_t len) break; } memcpy(block->mData, c_src, copy_len); - block->mUsed = copy_len; - llassert_always(block->mUsed <= block->mAlloced); - mBlocks.push_back(block); - mLen += copy_len; - c_src += copy_len; - len -= copy_len; - } - return ret - len; + block->mUsed = copy_len; + llassert_always(block->mUsed <= block->mAlloced); + mBlocks.push_back(block); + mLen += copy_len; + c_src += copy_len; + len -= copy_len; + } + return ret - len; } void * BufferArray::appendBufferAlloc(size_t len) { - // If someone asks for zero-length, we give them a valid pointer. - if (mBlocks.size() >= mBlocks.capacity()) - { - mBlocks.reserve(mBlocks.size() + 5); - } - Block * block = Block::alloc((std::max)(BLOCK_ALLOC_SIZE, len)); - block->mUsed = len; - mBlocks.push_back(block); - mLen += len; - return block->mData; + // If someone asks for zero-length, we give them a valid pointer. + if (mBlocks.size() >= mBlocks.capacity()) + { + mBlocks.reserve(mBlocks.size() + 5); + } + Block * block = Block::alloc((std::max)(BLOCK_ALLOC_SIZE, len)); + block->mUsed = len; + mBlocks.push_back(block); + mLen += len; + return block->mData; } size_t BufferArray::read(size_t pos, void * dst, size_t len) { - char * c_dst(static_cast<char *>(dst)); - - if (pos >= mLen) - return 0; - size_t len_limit(mLen - pos); - len = (std::min)(len, len_limit); - if (0 == len) - return 0; - - size_t result(0), offset(0); - const auto block_limit(mBlocks.size()); - int block_start(findBlock(pos, &offset)); - if (block_start < 0) - return 0; - - do - { - Block & block(*mBlocks[block_start]); - size_t block_limit(block.mUsed - offset); - size_t block_len((std::min)(block_limit, len)); - - memcpy(c_dst, &block.mData[offset], block_len); - result += block_len; - len -= block_len; - c_dst += block_len; - offset = 0; - ++block_start; - } - while (len && block_start < block_limit); - - return result; + char * c_dst(static_cast<char *>(dst)); + + if (pos >= mLen) + return 0; + size_t len_limit(mLen - pos); + len = (std::min)(len, len_limit); + if (0 == len) + return 0; + + size_t result(0), offset(0); + const auto block_limit(mBlocks.size()); + int block_start(findBlock(pos, &offset)); + if (block_start < 0) + return 0; + + do + { + Block & block(*mBlocks[block_start]); + size_t block_limit(block.mUsed - offset); + size_t block_len((std::min)(block_limit, len)); + + memcpy(c_dst, &block.mData[offset], block_len); + result += block_len; + len -= block_len; + c_dst += block_len; + offset = 0; + ++block_start; + } + while (len && block_start < block_limit); + + return result; } size_t BufferArray::write(size_t pos, const void * src, size_t len) { - const char * c_src(static_cast<const char *>(src)); - - if (pos > mLen || 0 == len) - return 0; - - size_t result(0), offset(0); - const auto block_limit(mBlocks.size()); - int block_start(findBlock(pos, &offset)); - - if (block_start >= 0) - { - // Some or all of the write will be on top of - // existing data. - do - { - Block & block(*mBlocks[block_start]); - size_t block_limit(block.mUsed - offset); - size_t block_len((std::min)(block_limit, len)); - - memcpy(&block.mData[offset], c_src, block_len); - result += block_len; - c_src += block_len; - len -= block_len; - offset = 0; - ++block_start; - } - while (len && block_start < block_limit); - } - - // Something left, see if it will fit in the free - // space of the last block. - if (len && ! mBlocks.empty()) - { - Block & last(*mBlocks.back()); - if (last.mUsed < last.mAlloced) - { - // Some will fit... - const size_t copy_len((std::min)(len, (last.mAlloced - last.mUsed))); - - memcpy(&last.mData[last.mUsed], c_src, copy_len); - last.mUsed += copy_len; - result += copy_len; - llassert_always(last.mUsed <= last.mAlloced); - mLen += copy_len; - c_src += copy_len; - len -= copy_len; - } - } - - if (len) - { - // Some or all of the remaining write data will - // be an append. - result += append(c_src, len); - } - - return result; + const char * c_src(static_cast<const char *>(src)); + + if (pos > mLen || 0 == len) + return 0; + + size_t result(0), offset(0); + const auto block_limit(mBlocks.size()); + int block_start(findBlock(pos, &offset)); + + if (block_start >= 0) + { + // Some or all of the write will be on top of + // existing data. + do + { + Block & block(*mBlocks[block_start]); + size_t block_limit(block.mUsed - offset); + size_t block_len((std::min)(block_limit, len)); + + memcpy(&block.mData[offset], c_src, block_len); + result += block_len; + c_src += block_len; + len -= block_len; + offset = 0; + ++block_start; + } + while (len && block_start < block_limit); + } + + // Something left, see if it will fit in the free + // space of the last block. + if (len && ! mBlocks.empty()) + { + Block & last(*mBlocks.back()); + if (last.mUsed < last.mAlloced) + { + // Some will fit... + const size_t copy_len((std::min)(len, (last.mAlloced - last.mUsed))); + + memcpy(&last.mData[last.mUsed], c_src, copy_len); + last.mUsed += copy_len; + result += copy_len; + llassert_always(last.mUsed <= last.mAlloced); + mLen += copy_len; + c_src += copy_len; + len -= copy_len; + } + } + + if (len) + { + // Some or all of the remaining write data will + // be an append. + result += append(c_src, len); + } + + return result; } - + int BufferArray::findBlock(size_t pos, size_t * ret_offset) { - *ret_offset = 0; - if (pos >= mLen) - return -1; // Doesn't exist - - const int block_limit(narrow<size_t>(mBlocks.size())); - for (int i(0); i < block_limit; ++i) - { - if (pos < mBlocks[i]->mUsed) - { - *ret_offset = pos; - return i; - } - pos -= mBlocks[i]->mUsed; - } - - // Shouldn't get here but... - return -1; + *ret_offset = 0; + if (pos >= mLen) + return -1; // Doesn't exist + + const int block_limit(narrow<size_t>(mBlocks.size())); + for (int i(0); i < block_limit; ++i) + { + if (pos < mBlocks[i]->mUsed) + { + *ret_offset = pos; + return i; + } + pos -= mBlocks[i]->mUsed; + } + + // Shouldn't get here but... + return -1; } bool BufferArray::getBlockStartEnd(int block, const char ** start, const char ** end) { - if (block < 0 || block >= mBlocks.size()) - { - return false; - } - - const Block & b(*mBlocks[block]); - *start = &b.mData[0]; - *end = &b.mData[b.mUsed]; - return true; + if (block < 0 || block >= mBlocks.size()) + { + return false; + } + + const Block & b(*mBlocks[block]); + *start = &b.mData[0]; + *end = &b.mData[b.mUsed]; + return true; } @@ -324,45 +324,45 @@ bool BufferArray::getBlockStartEnd(int block, const char ** start, const char ** BufferArray::Block::Block(size_t len) - : mUsed(0), - mAlloced(len) + : mUsed(0), + mAlloced(len) { - memset(mData, 0, len); + memset(mData, 0, len); } - + BufferArray::Block::~Block() { - mUsed = 0; - mAlloced = 0; + mUsed = 0; + mAlloced = 0; } void * BufferArray::Block::operator new(size_t len, size_t addl_len) { - void * mem = new char[len + addl_len + sizeof(void *)]; - return mem; + void * mem = new char[len + addl_len + sizeof(void *)]; + return mem; } void BufferArray::Block::operator delete(void * mem) { - char * cmem = static_cast<char *>(mem); - delete [] cmem; + char * cmem = static_cast<char *>(mem); + delete [] cmem; } void BufferArray::Block::operator delete(void * mem, size_t) { - operator delete(mem); + operator delete(mem); } BufferArray::Block * BufferArray::Block::alloc(size_t len) { - Block * block = new (len) Block(len); - return block; + Block * block = new (len) Block(len); + return block; } - + } // end namespace LLCore |