mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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124 lines
No EOL
3.9 KiB
C++
124 lines
No EOL
3.9 KiB
C++
/*
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* Copyright (c) Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stratosphere.hpp>
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#include "creport_scoped_file.hpp"
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namespace ams::creport {
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namespace {
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/* Convenience definitions. */
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constexpr size_t MaximumLineLength = 0x20;
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constinit os::SdkMutex g_format_lock;
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constinit char g_format_buffer[2 * os::MemoryPageSize];
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}
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void ScopedFile::WriteString(const char *str) {
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this->Write(str, std::strlen(str));
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}
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void ScopedFile::WriteFormat(const char *fmt, ...) {
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/* Acquire exclusive access to the format buffer. */
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std::scoped_lock lk(g_format_lock);
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/* Format to the buffer. */
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{
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std::va_list vl;
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va_start(vl, fmt);
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util::VSNPrintf(g_format_buffer, sizeof(g_format_buffer), fmt, vl);
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va_end(vl);
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}
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/* Write data. */
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this->WriteString(g_format_buffer);
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}
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void ScopedFile::DumpMemory(const char *prefix, const void *data, size_t size) {
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const u8 *data_u8 = reinterpret_cast<const u8 *>(data);
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const int prefix_len = std::strlen(prefix);
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size_t data_ofs = 0;
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size_t remaining = size;
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bool first = true;
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while (remaining) {
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const size_t cur_size = std::min(MaximumLineLength, remaining);
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/* Print the line prefix. */
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if (first) {
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this->Write(prefix, prefix_len);
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first = false;
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} else {
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std::memset(g_format_buffer, ' ', prefix_len);
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this->Write(g_format_buffer, prefix_len);
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}
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/* Dump up to 0x20 of hex memory. */
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{
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char hex[MaximumLineLength * 2 + 2] = {};
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for (size_t i = 0; i < cur_size; i++) {
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hex[i * 2 + 0] = "0123456789ABCDEF"[data_u8[data_ofs] >> 4];
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hex[i * 2 + 1] = "0123456789ABCDEF"[data_u8[data_ofs] & 0xF];
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++data_ofs;
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}
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hex[cur_size * 2 + 0] = '\n';
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this->Write(hex, cur_size * 2 + 1);
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}
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/* Continue. */
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remaining -= cur_size;
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}
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}
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void ScopedFile::Write(const void *data, size_t size) {
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/* If we're not open, we can't write. */
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if (!this->IsOpen()) {
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return;
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}
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/* If we have a cache, write to it. */
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if (m_cache != nullptr) {
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/* Write into the cache, if we can. */
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if (m_cache_size - m_cache_offset >= size || R_SUCCEEDED(this->TryWriteCache())) {
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std::memcpy(m_cache + m_cache_offset, data, size);
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m_cache_offset += size;
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}
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} else {
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/* Advance, if we write successfully. */
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if (R_SUCCEEDED(fs::WriteFile(m_file, m_offset, data, size, fs::WriteOption::None))) {
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m_offset += size;
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}
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}
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}
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Result ScopedFile::TryWriteCache() {
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/* If there's no cached data, there's nothing to do. */
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R_SUCCEED_IF(m_cache_offset == 0);
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/* Try to write any cached data. */
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R_TRY(fs::WriteFile(m_file, m_offset, m_cache, m_cache_offset, fs::WriteOption::None));
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/* Update our extents. */
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m_offset += m_cache_offset;
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m_cache_offset = 0;
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R_SUCCEED();
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}
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} |