76     m_buf(nullptr),  in VirtioGpuStream()
105     free(m_buf);  in ~VirtioGpuStream()
188     if (m_buf) {  in allocBuffer()
194         VirtioGpuCmd *cmd = reinterpret_cast<VirtioGpuCmd *>(&m_buf[m_cmdPos]);  in allocBuffer()
205                     free(m_buf);  in allocBuffer()
206                     m_buf = nullptr;  in allocBuffer()
223     if (!m_buf) {  in allocBuffer()
224         m_buf = static_cast<unsigned char *>(malloc(allocSize));  in allocBuffer()
226         unsigned char *p = static_cast<unsigned char *>(realloc(m_buf, allocSize));  in allocBuffer()
228             free(m_buf);  in allocBuffer()
230         m_buf = p;  in allocBuffer()
232     if (!m_buf) {  in allocBuffer()
249       VirtioGpuCmd *cmd = reinterpret_cast<VirtioGpuCmd *>(&m_buf[m_cmdPos]);  in allocBuffer()
253     return m_buf + m_cmdPos;  in allocBuffer()
276     VirtioGpuCmd *cmd = reinterpret_cast<VirtioGpuCmd *>(&m_buf[m_cmdPos]);  in writeFully()
298     memcpy(&m_buf[m_flushPos], buf, len);  in writeFully()
381         VirtioGpuCmd *cmd = reinterpret_cast<VirtioGpuCmd *>(&m_buf[pos]);  in commitAll()