Files
allwpilib/hal/src/main/native/cpp/ErrorHandling.cpp
Peter Johnson b2c3b2dd8e Use std::string_view and fmtlib across all libraries (#3402)
- Twine, StringRef, Format, and NativeFormatting have been removed
- Logging now uses fmtlib style formatting
- Nearly all uses of wpi::outs/errs have been replaced with fmt::print() or
std::puts()/std::fputs() (for unformatted strings).
- A wpi/fmt/raw_ostream.h header has been added to enable
fmt::print() with wpi::raw_ostream
2021-06-06 16:13:58 -07:00

61 lines
1.9 KiB
C++

// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
#include <fmt/format.h>
#include <wpi/SmallString.h>
#include "hal/Errors.h"
#include "hal/HALBase.h"
namespace {
struct LastErrorStorage {
int32_t status;
wpi::SmallString<512> message;
};
} // namespace
static LastErrorStorage& GetThreadLastError() {
thread_local LastErrorStorage lastError;
return lastError;
}
namespace hal {
void SetLastError(int32_t* status, std::string_view value) {
LastErrorStorage& lastError = GetThreadLastError();
lastError.message = value;
lastError.status = *status;
*status = HAL_USE_LAST_ERROR;
}
void SetLastErrorIndexOutOfRange(int32_t* status, std::string_view message,
int32_t minimum, int32_t maximum,
int32_t requested) {
SetLastError(
status,
fmt::format("{}\n Status: {}\n Minimum: {} Maximum: {} Requested: {}",
message, *status, minimum, maximum, requested));
}
void SetLastErrorPreviouslyAllocated(int32_t* status, std::string_view message,
int32_t channel,
std::string_view previousAllocation) {
hal::SetLastError(status,
fmt::format("{} {} previously allocated.\n"
"Location of the previous allocation:\n{}\n"
"Location of the current allocation:",
message, channel, previousAllocation));
}
} // namespace hal
extern "C" {
const char* HAL_GetLastError(int32_t* status) {
if (*status == HAL_USE_LAST_ERROR) {
LastErrorStorage& lastError = GetThreadLastError();
*status = lastError.status;
return lastError.message.c_str();
}
return HAL_GetErrorMessage(*status);
}
} // extern "C"