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Fix std::chrono/date conflict for mac builds with C++20 #22138

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merged 7 commits into from
Sep 20, 2024
Merged

Fix std::chrono/date conflict for mac builds with C++20 #22138

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a116e28
Fix usage of c++ std::chrono::operator<< in mac builds for wider rang…
skottmckay Sep 18, 2024
212f9b6
Add TODO
skottmckay Sep 18, 2024
f2bac21
Merge remote-tracking branch 'origin/main' into skottmckay/FixCxx20Da…
skottmckay Sep 19, 2024
a98875a
link
skottmckay Sep 19, 2024
45de1ee
rename #define
skottmckay Sep 20, 2024
f7752c5
Add comment to explain the 'TEMP'
skottmckay Sep 20, 2024
d89747c
Fix #undef mismatch.
skottmckay Sep 20, 2024
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36 changes: 32 additions & 4 deletions include/onnxruntime/core/common/logging/logging.h
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Original file line number Diff line number Diff line change
Expand Up @@ -58,15 +58,43 @@

using Timestamp = std::chrono::time_point<std::chrono::system_clock>;

// TODO: When other compilers support std::chrono::operator<<, update this.
// TODO: Check support for other compilers' version before enable C++20 for other compilers.
// Xcode added support for C++20's std::chrono::operator<< in SDK version 14.4.
#if __cplusplus >= 202002L && __MAC_OS_X_VERSION_MAX_ALLOWED >= 140400L
// C++20 has operator<< in std::chrono for Timestamp type but mac builds need additional checks
// to ensure usage is valid.
// TODO: As we enable C++20 on other platforms we may need similar checks.

Check warning on line 63 in include/onnxruntime/core/common/logging/logging.h

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GitHub Actions / Optional Lint C++ 

[cpplint] reported by reviewdog 🐶
 Missing username in TODO; it should look like "// TODO(my_username): Stuff."  [readability/todo] [2]

Raw Output:
include/onnxruntime/core/common/logging/logging.h:63:  Missing username in TODO; it should look like "// TODO(my_username): Stuff."  [readability/todo] [2]
// define a temporary value to determine whether to use the std::chrono or date implementation.
#define TEMP_USE_CXX20_STD_CHRONO __cplusplus >= 202002L

// Apply constraints for mac builds
#if __APPLE__
#include <TargetConditionals.h>

// Catalyst check must be first as it has both TARGET_OS_MACCATALYST and TARGET_OS_MAC set
#if TARGET_OS_MACCATALYST
// maccatalyst requires version 16.3
#if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && __IPHONE_OS_VERSION_MIN_REQUIRED < 160300)
#undef TEMP_USE_CXX20_STD_CHRONO
#endif

#elif TARGET_OS_MAC
// Xcode added support for C++20's std::chrono::operator<< in SDK version 14.4,
// but the target macOS version must also be >= 13.3 for it to be used.
#if (defined(__MAC_OS_X_VERSION_MAX_ALLOWED) && __MAC_OS_X_VERSION_MAX_ALLOWED < 140400) || \
(defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED < 130300)
#undef TEMP_USE_CXX20_STD_CHRONO
#endif

#endif

#endif // __APPLE__

#if TEMP_USE_CXX20_STD_CHRONO
namespace timestamp_ns = std::chrono;
#else
namespace timestamp_ns = ::date;
#endif

#undef _USE_CXX20_STD_CHRONO

#ifndef NDEBUG
ORT_ATTRIBUTE_UNUSED static bool vlog_enabled = true; // Set directly based on your needs.
#else
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3 changes: 2 additions & 1 deletion onnxruntime/core/common/logging/sinks/ostream_sink.cc
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Expand Up @@ -45,7 +45,8 @@ void OStreamSink::SendImpl(const Timestamp& timestamp, const std::string& logger
}
#endif

msg << timestamp << " [" << message.SeverityPrefix() << ":" << message.Category() << ":" << logger_id << ", "
timestamp_ns::operator<<(msg, timestamp); // handle ambiguity with C++20 where date and std::chrono have operator<<
msg << " [" << message.SeverityPrefix() << ":" << message.Category() << ":" << logger_id << ", "
<< message.Location().ToString() << "] " << message.Message();

#ifndef ORT_MINIMAL_BUILD
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4 changes: 3 additions & 1 deletion onnxruntime/core/platform/apple/logging/apple_log_sink.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,9 @@
void AppleLogSink::SendImpl(const Timestamp& timestamp, const std::string& logger_id, const Capture& message) {
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The file still includes the third-party "date.h" header file, even when timestamp_ns refers to std::chrono

using timestamp_ns::operator<<;
std::ostringstream msg;
msg << timestamp << " [" << message.SeverityPrefix() << ":" << message.Category() << ":" << logger_id << ", "

timestamp_ns::operator<<(msg, timestamp); // handle ambiguity with C++20 where date and std::chrono have operator<<
msg << " [" << message.SeverityPrefix() << ":" << message.Category() << ":" << logger_id << ", "
<< message.Location().ToString() << "] " << message.Message();
NSLog(@"%s", msg.str().c_str());
}
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