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[sim] Various WebSockets fixes and enhancements (#2952)

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This is a breaking change to the WebSockets layer to align it with
recent specification documentation work.

To support this, HAL SimValue changed readonly to a direction enum.
This allows specifying bidirectional in addition to input and output.

The SimValue change is specifically designed to avoid API and ABI breakage.
This is completely transparent in C++; in Java a new callback class was added,
and the old readonly functions have been marked deprecated.

A new SimValue creation function for enums allows specifying double values
for each enum value, not just strings.  This allows mapping enum values to
doubles in the WebSockets layer.

A ":" in the SimDevice name now maps it to different WebSocket types (e.g.
"Accel:Name" becomes type "Accel", device "Name").  The type is hidden
in the GUI.

Other WebSockets changes:
* Implemented match_time and game_data
* Added joystick rumble data
* Added builtin accelerometer support
* SimValue enums are mapped to string and double value on WS interface
* Added WebSockets protocol specification
* Added READMEs
This commit is contained in:
Peter Johnson
2020-12-23 15:54:11 -08:00
committed by GitHub
parent 699bbe21a4
commit 10b396b4c2
38 changed files with 1264 additions and 187 deletions
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13
hal/src/main/native/athena/SimDevice.cpp
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@@ -1,5 +1,5 @@
/*----------------------------------------------------------------------------*/
/* Copyright (c) 2019 FIRST. All Rights Reserved. */
/* Copyright (c) 2019-2020 FIRST. All Rights Reserved. */
/* Open Source Software - may be modified and shared by FRC teams. The code */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project. */
@@ -14,19 +14,26 @@ HAL_SimDeviceHandle HAL_CreateSimDevice(const char* name) { return 0; }
void HAL_FreeSimDevice(HAL_SimDeviceHandle handle) {}
HAL_SimValueHandle HAL_CreateSimValue(HAL_SimDeviceHandle device,
const char* name, HAL_Bool readonly,
const char* name, int32_t direction,
const struct HAL_Value* initialValue) {
return 0;
}
HAL_SimValueHandle HAL_CreateSimValueEnum(HAL_SimDeviceHandle device,
const char* name, HAL_Bool readonly,
const char* name, int32_t direction,
int32_t numOptions,
const char** options,
int32_t initialValue) {
return 0;
}
HAL_SimValueHandle HAL_CreateSimValueEnumDouble(
HAL_SimDeviceHandle device, const char* name, int32_t direction,
int32_t numOptions, const char** options, const double* optionValues,
int32_t initialValue) {
return 0;
}
void HAL_GetSimValue(HAL_SimValueHandle handle, struct HAL_Value* value) {
value->type = HAL_UNASSIGNED;
}