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https://github.com/FEX-Emu/FEX.git
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Lioncash
ca2b04b309
Addresses #146 a little more by providing an interface to perform fmt-compatible logging. No more, will people on the project be tormented by classic printf features like: - Accidentally passing in a non-trivial type - PRI macros - Not being able to add support for custom types - Mixing up signed/unsigned printf formatting specifiers accidentally fmt-capable versions of the logging functions are named the same as the existing functions, just with a "Fmt" or _FMT suffix (depending on whether or not it's a function being used or a macro, respectively).
90 lines
2.1 KiB
C++
90 lines
2.1 KiB
C++
/*
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$info$
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tags: glue|log-manager
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$end_info$
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*/
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#include <FEXCore/Utils/LogManager.h>
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#include <sstream>
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#include <vector>
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namespace LogMan {
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namespace Throw {
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std::vector<ThrowHandler> Handlers;
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void InstallHandler(ThrowHandler Handler) { Handlers.emplace_back(Handler); }
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void UnInstallHandlers() { Handlers.clear(); }
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[[noreturn]] void M(const char *fmt, va_list args) {
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size_t MsgSize = 1024;
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char *Buffer = reinterpret_cast<char*>(alloca(MsgSize));
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va_list argsCopy;
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va_copy(argsCopy, args);
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size_t Return = vsnprintf(Buffer, MsgSize, fmt, argsCopy);
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va_end(argsCopy);
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if (Return >= MsgSize) {
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// Allocate a bigger size on failure
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MsgSize = Return;
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Buffer = reinterpret_cast<char*>(alloca(MsgSize));
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va_end(argsCopy);
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va_copy(argsCopy, args);
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vsnprintf(Buffer, MsgSize, fmt, argsCopy);
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va_end(argsCopy);
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}
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for (auto &Handler : Handlers) {
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Handler(Buffer);
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}
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__builtin_trap();
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}
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void MFmt(const char *fmt, const fmt::format_args& args) {
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auto msg = fmt::vformat(fmt, args);
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for (auto& Handler : Handlers) {
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Handler(msg.c_str());
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}
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__builtin_trap();
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}
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} // namespace Throw
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namespace Msg {
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std::vector<MsgHandler> Handlers;
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void InstallHandler(MsgHandler Handler) { Handlers.emplace_back(Handler); }
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void UnInstallHandlers() { Handlers.clear(); }
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void M(DebugLevels Level, const char *fmt, va_list args) {
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size_t MsgSize = 1024;
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char *Buffer = reinterpret_cast<char*>(alloca(MsgSize));
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va_list argsCopy;
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va_copy(argsCopy, args);
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size_t Return = vsnprintf(Buffer, MsgSize, fmt, argsCopy);
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va_end(argsCopy);
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if (Return >= MsgSize) {
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// Allocate a bigger size on failure
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MsgSize = Return;
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Buffer = reinterpret_cast<char*>(alloca(MsgSize));
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va_end(argsCopy);
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va_copy(argsCopy, args);
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vsnprintf(Buffer, MsgSize, fmt, argsCopy);
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va_end(argsCopy);
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}
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for (auto &Handler : Handlers) {
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Handler(Level, Buffer);
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}
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}
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void MFmtImpl(DebugLevels level, const char* fmt, const fmt::format_args& args) {
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const auto msg = fmt::vformat(fmt, args);
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for (auto& Handler : Handlers) {
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Handler(level, msg.c_str());
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}
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}
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} // namespace Msg
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} // namespace LogMan
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