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https://github.com/wiiu-env/WiiUPluginLoaderBackend.git
synced 2024-11-05 04:25:08 +01:00
Read plugins into a aligned buffer to improve reading speed.
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db0f9f70d4
@ -17,6 +17,7 @@
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <memory>
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#include "PluginDataFactory.h"
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#include "../utils/logger.h"
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#include "../utils/StringTools.h"
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@ -64,32 +65,30 @@ std::vector<PluginData> PluginDataFactory::loadDir(const std::string &path, MEMH
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}
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std::optional<PluginData> PluginDataFactory::load(const std::string &filename, MEMHeapHandle heapHandle) {
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// open the file:
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std::ifstream file(filename, std::ios::binary);
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if (!file.is_open()) {
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DEBUG_FUNCTION_LINE("Failed to open %s", filename.c_str());
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return std::nullopt;
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// Not going to explicitly check these.
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// The use of gcount() below will compensate for a failure here.
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std::ifstream is(filename, std::ios::binary);
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is.seekg(0, std::ios::end);
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std::streampos length = is.tellg();
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is.seekg(0, std::ios::beg);
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// reading into a 0x40 aligned buffer increases reading speed.
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char *data = (char *) memalign(0x40, length);
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if (!data) {
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DEBUG_FUNCTION_LINE("Failed to alloc memory for holding the plugin");
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return {};
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}
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// Stop eating new lines in binary mode!!!
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file.unsetf(std::ios::skipws);
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// get its size:
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std::streampos fileSize;
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is.read(data, length);
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file.seekg(0, std::ios::end);
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fileSize = file.tellg();
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file.seekg(0, std::ios::beg);
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std::vector<uint8_t> result;
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result.resize(length);
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memcpy(&result[0], data, length);
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free(data);
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std::vector<uint8_t> vBuffer;
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vBuffer.reserve(fileSize);
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DEBUG_FUNCTION_LINE("Loaded file!");
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// read the data:
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vBuffer.insert(vBuffer.begin(),
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std::istream_iterator<uint8_t>(file),
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std::istream_iterator<uint8_t>());
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DEBUG_FUNCTION_LINE("Loaded file");
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return load(vBuffer, heapHandle);
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return load(result, heapHandle);
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}
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std::optional<PluginData> PluginDataFactory::load(std::vector<uint8_t> &buffer, MEMHeapHandle heapHandle) {
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