dmcallis
65a0592776
Source code drop for the Actionscript virtual machine in the Adobe Flash Player for December 2013
65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 4 -*- */
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/* vi: set ts=4 sw=4 expandtab: (add to ~/.vimrc: set modeline modelines=5) */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "avmplus.h"
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namespace avmplus
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{
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using namespace MMgc;
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StringBuffer::StringOutputStream::StringOutputStream(MMgc::GC *gc)
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{
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m_gc = gc;
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m_buffer = NULL;
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m_length = 0;
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}
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StringBuffer::StringOutputStream::~StringOutputStream()
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{
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if (m_buffer != NULL) {
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m_gc->Free(m_buffer);
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m_buffer = 0;
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}
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m_gc = 0;
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m_length = 0;
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}
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void StringBuffer::StringOutputStream::write(const char* utf8)
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{
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writeN(utf8, String::Length(utf8));
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}
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void StringBuffer::StringOutputStream::ensureCapacity(size_t count)
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{
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if (m_buffer == NULL || m_length+count >= (size_t)GC::Size(m_buffer))
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{
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size_t newCapacity = (m_length+count+1)*2;
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char* newBuffer = (char*) m_gc->Alloc(newCapacity);
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if (m_buffer != NULL) {
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VMPI_memcpy(newBuffer, m_buffer, m_length);
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m_gc->Free(m_buffer);
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}
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if (m_gc->IsPointerToGCPage(this))
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WB(m_gc, m_gc->FindBeginningFast(this), &m_buffer, newBuffer);
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else
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m_buffer = newBuffer;
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}
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}
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void StringBuffer::StringOutputStream::writeN(const char* buffer, size_t count)
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{
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ensureCapacity(m_length + count);
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VMPI_memcpy(m_buffer+m_length, buffer, count);
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m_length += (int)count;
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m_buffer[m_length] = 0;
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}
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void StringBuffer::writeN(const char* buffer, size_t count)
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{
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m_stream.writeN(buffer, count);
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}
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}
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