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[hal] Resource classes: Use expected, refactor errors (#8768)

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Also revamp SetLastError et al; Instead of taking status by pointer,
take by value and return new status instead. Rename from SetLast to Make
to make this new usage obvious.

Also move declarations for the error functions from duplicated in the
per-target HALInternal.hpp to a common ErrorHandling.hpp.
This commit is contained in:
Peter Johnson
2026-04-17 20:19:38 -07:00
committed by GitHub
parent 6cb6903780
commit a97214df43
31 changed files with 309 additions and 406 deletions
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25
hal/src/main/native/systemcore/Counter.cpp
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@@ -10,9 +10,9 @@
#include <fmt/format.h>
#include "HALInitializer.hpp"
#include "HALInternal.hpp"
#include "PortsInternal.hpp"
#include "SmartIo.hpp"
#include "wpi/hal/ErrorHandling.hpp"
#include "wpi/hal/monotonic_clock.hpp"
using namespace wpi::hal;
@@ -28,28 +28,21 @@ HAL_CounterHandle HAL_InitializeCounter(int channel, HAL_Bool risingEdge,
int32_t* status) {
wpi::hal::init::CheckInit();
if (channel == INVALID_HANDLE_INDEX || channel >= kNumSmartIo) {
*status = RESOURCE_OUT_OF_RANGE;
wpi::hal::SetLastErrorIndexOutOfRange(status, "Invalid Index for Counter",
0, kNumSmartIo, channel);
*status = MakeErrorIndexOutOfRange(RESOURCE_OUT_OF_RANGE,
"Invalid Index for Counter", 0,
kNumSmartIo, channel);
return HAL_INVALID_HANDLE;
}
HAL_CounterHandle handle;
auto resource =
smartIoHandles->Allocate(channel, HAL_HandleEnum::COUNTER, "Counter");
auto port = smartIoHandles->Allocate(channel, HAL_HandleEnum::COUNTER,
&handle, status);
if (*status != 0) {
if (port) {
wpi::hal::SetLastErrorPreviouslyAllocated(status, "SmartIo", channel,
port->previousAllocation);
} else {
wpi::hal::SetLastErrorIndexOutOfRange(status, "Invalid Index for Counter",
0, kNumSmartIo, channel);
}
if (!resource) {
*status = resource.error();
return HAL_INVALID_HANDLE; // failed to allocate. Pass error back.
}
auto [handle, port] = *resource;
port->channel = channel;
*status =