Enhance Memory Management and Update ClientTrait in OPC DA Client #10
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…oup creation, and enhance server interaction methods
WalkthroughThe changes encompass enhancements to memory management utilities in the OPC DA client, introducing new structs and methods to improve safety and usability. A new Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant Server
participant OPCServerList
Client->>Server: create_server(class_id)
Server->>OPCServerList: get_servers()
OPCServerList-->>Server: List of server GUIDs
Server-->>Client: Server instance or error
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🔇 Additional comments (8)opc_da/src/def.rs (8)
The change from mutable to immutable reference in
The introduction of
Also applies to: 25-28
The bidirectional conversion between
Also applies to: 106-128
The renaming of fields from
The
The Also applies to: 171-187
The
Also applies to: 283-300, 302-315
The
Also applies to: 327-344, 346-359 Line range hint The implementation correctly handles the blob size conversion from ✅ Verification successfulLet me analyze the blob handling further by checking for the Based on the analysis of the code, I can now provide the final response: Blob size conversion and memory management are properly implemented. The implementation correctly handles:
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$$$
pBlob: $$$
$$$
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Actionable comments posted: 1
🧹 Outside diff range and nitpick comments (4)
opc_da/src/client/traits/client.rs (2)
21-21: Address the TODO: UseCoCreateInstanceExfor enhanced flexibilityThe TODO comment indicates an intention to use
CoCreateInstanceEx. Switching toCoCreateInstanceExcould allow specifying remote server details and provide better control over activation contexts.Would you like assistance in updating the code to use
CoCreateInstanceEx?
25-25: Address the TODO: Convert from filtersThe TODO comment mentions converting from filters. Implementing proper filters will enhance the functionality by allowing more precise server enumeration.
Do you need help in implementing the filters for server enumeration?
opc_da/src/client/memory.rs (1)
Line range hint
61-71: Markas_slice()method asunsafedue to potential undefined behaviorThe
as_slice()method assumes that thepointeris valid and points tolenelements. Since misuse can lead to undefined behavior, it should be marked asunsafeto indicate that safety guarantees are not enforced by the compiler.Apply this diff to mark
as_slice()as unsafe:#[inline(always)] -pub fn as_slice(&self) -> &[T] { +pub unsafe fn as_slice(&self) -> &[T] {opc_da/src/client/v1/mod.rs (1)
12-24: Revise pricing strategy to avoid discount anomaliesThe current implementation has a business logic issue where adding a flat $20 fee only to discounted purchases can result in higher final prices for customers who qualify for smaller discounts. For example:
- $100 purchase with no discount = $100
- $100 purchase with 10% discount = $90 + $20 = $110
This creates a disincentive for customer loyalty.
Consider these alternatives:
- Apply flat fee before discount calculation
- Scale the fee based on purchase amount
- Remove the flat fee for loyal customers
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📒 Files selected for processing (7)
opc_da/src/client/memory.rs(19 hunks)opc_da/src/client/traits/client.rs(1 hunks)opc_da/src/client/traits/mod.rs(3 hunks)opc_da/src/client/traits/server.rs(2 hunks)opc_da/src/client/v1/mod.rs(2 hunks)opc_da/src/client/v2/mod.rs(2 hunks)opc_da/src/client/v3/mod.rs(2 hunks)
🔇 Additional comments (14)
opc_da/src/client/traits/client.rs (2)
15-41: Well-structured implementation of get_servers method
The method correctly retrieves server GUIDs, handles error cases, and returns an iterator over the GUIDs. The use of unsafe blocks is appropriate, and error handling with descriptive messages enhances debuggability.
52-62: Correct implementation of create_server method
The method successfully creates a server instance from the specified class ID and converts it to the desired Server type using try_into(). Error handling is properly managed, and the use of unsafe blocks is justified.
opc_da/src/client/traits/server.rs (2)
9-9: Enforced stricter type constraints on Group in ServerTrait
The trait now requires Group to implement TryFrom<windows::core::IUnknown, Error = windows::core::Error>, enhancing type safety and ensuring proper conversion from COM interfaces.
66-66: Validated conversion of group to Group type using TryFrom
The conversion of group to the Group type utilizing try_into() aligns with the enforced type constraints and ensures that the group object conforms to the expected interface.
opc_da/src/client/memory.rs (2)
216-223: Introduction of LocalPointer<T> enhances memory management
The new LocalPointer<T> struct provides a safe wrapper for locally allocated memory passed to COM functions, improving overall memory safety and ease of use.
Line range hint 205-212: Proper cleanup in Drop implementation for RemotePointer<T>
The Drop implementation correctly frees COM-allocated memory using CoTaskMemFree, ensuring that resources are released appropriately when the RemotePointer goes out of scope.
opc_da/src/client/traits/mod.rs (2)
1-5: Reintroduction of previously removed modules
The modules async_io, async_io2, async_io3, browse, and browse_server_address_space have been reintroduced. Ensure that any dependencies and references to these modules are correctly managed throughout the codebase.
32-32: Addition of client module and public export
The client module has been added and publicly exported, which aligns with the new ClientTrait functionality. This addition enhances the modularity and organization of client-related traits.
opc_da/src/client/v1/mod.rs (2)
16-21: LGTM: Client implementation follows OPC DA 1.0 specification
The implementation correctly uses the OPC DA 1.0 catalog ID (CATID_OPCDAServer10) for server enumeration.
26-28: Verify group creation mechanism after removal of create_group
The removal of create_group from ServerTrait implementation suggests a change in group management strategy. We should verify the new mechanism for group creation.
opc_da/src/client/v2/mod.rs (2)
18-23: LGTM: Client implementation follows OPC DA 2.0 specification
The implementation correctly uses the OPC DA 2.0 catalog ID (CATID_OPCDAServer20) and maintains consistency with the v1 implementation.
115-120: LGTM: Robust implementation of optional interfaces
The implementation properly handles optional OPC DA 2.0 interfaces with clear error messages and follows best practices for COM interface management.
opc_da/src/client/v3/mod.rs (2)
17-22: LGTM: Client implementation follows OPC DA 3.0 specification
The implementation correctly uses the OPC DA 3.0 catalog ID (CATID_OPCDAServer30) and maintains consistency with v1 and v2 implementations.
95-100: LGTM: Comprehensive implementation of OPC DA 3.0 interfaces
The Group implementation properly supports all required OPC DA 3.0 interfaces and follows best practices for COM interface management.
…mentation and restrict visibility of certain functions
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Actionable comments posted: 1
🧹 Outside diff range and nitpick comments (1)
opc_da/src/client/memory.rs (1)
291-296: Consider adding UTF-16 encoding error handlingThe string to UTF-16 conversion assumes the encoding will always succeed. While this is generally true for most Unicode characters, consider handling potential encoding errors for robustness.
Consider updating the implementation to handle encoding errors:
- fn from(s: &str) -> Self { + fn from(s: &str) -> Self { + // Collect into a Vec first to handle potential allocation failures + let encoded: Vec<u16> = s.encode_utf16().collect(); + // Then add null terminator Self::new(Some( - s.encode_utf16().chain(Some(0)).collect() + encoded.into_iter().chain(Some(0)).collect() )) }
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opc_da/src/client/memory.rs(18 hunks)
🔇 Additional comments (3)
opc_da/src/client/memory.rs (3)
1-8: Well-documented module structure!
The module documentation clearly explains the purpose and the three main types for memory management.
158-165:
Consider marking as_option() method as unsafe
The as_option() method dereferences a raw pointer, which can lead to undefined behavior if the pointer is invalid. Marking this method as unsafe explicitly communicates the safety contract to the users of this API.
Line range hint 214-223: Verify COM memory cleanup patterns
The Drop implementation for RemotePointer looks correct, but let's verify the COM memory cleanup patterns across the codebase.
✅ Verification successful
Based on the search results, I can now generate the final response:
COM memory management patterns are properly implemented
The codebase demonstrates consistent and safe COM memory management patterns:
- All COM memory allocations (
CoTaskMemAlloc) are properly wrapped in safe abstractions with correspondingDropimplementations that callCoTaskMemFree - Memory allocation failures are properly handled with
E_OUTOFMEMORYerror returns - The
RemotePointerand array wrapper implementations ensure memory is freed exactly once - Raw pointer usage is contained within unsafe blocks and properly managed through RAII patterns
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#!/bin/bash
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ast-grep --pattern 'fn $name($_) {
$$$
*mut $_
$$$
}'
Length of output: 4472
… ItemPropertiesTrait for improved safety.
…ance client struct definitions for improved clarity and usability.
…ns and improve code organization by removing unused iterator module.
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Actionable comments posted: 5
🧹 Outside diff range and nitpick comments (15)
opc_da/src/client/unified/client.rs (3)
13-23: Consider Reducing Code Duplication in Initialization MethodsThe methods
v1(),v2(), andv3()share similar logic for initializing different client versions. To improve maintainability and adhere to the DRY (Don't Repeat Yourself) principle, consider refactoring these methods using a generic function or macro.
25-31: Simplifyget_serversMethod by Leveraging PolymorphismThe
get_serversmethod uses pattern matching to delegate the call to the underlying client versions. Since all client variants implement the same trait, consider abstracting this behavior to reduce code repetition. Implementing theClientTraitforClientcould streamline the method.
33-39: Reduce Repetition increate_serverMethodSimilar to
get_servers, thecreate_servermethod contains repetitive match statements for each client variant. Refactoring this method to minimize duplication can enhance readability and maintainability.opc_da/src/client/unified/server.rs (2)
15-53: Refactoradd_groupMethod to Eliminate Redundant CodeThe
add_groupmethod has nearly identical code blocks for each server variant. To adhere to the DRY principle and improve code clarity, consider abstracting the common logic into a helper function or utilizing a macro.
65-71: Optimizeremove_groupMethod by Abstracting Common BehaviorThe
remove_groupmethod repeats the same call for each server variant. Implementing a shared trait or using a higher-order function could eliminate the need for explicit matching, enhancing code readability.opc_da/src/client/traits/server.rs (1)
Line range hint
9-39: Update Method Documentation to Include New ParametersThe
add_groupmethod now includesrevised_percent_deadbandandserver_handleparameters, but the documentation doesn't reflect these changes. Please update the method's documentation to describe these parameters and their roles in the function.opc_da/src/client/iterator.rs (1)
147-153: Remove UnusedfinishedFlag or Implement Its UsageThe
finishedflag is set but never read in theGroupIterator. If not used, consider removing it to clean up the code. If intended for future use or clarity, ensure it is appropriately utilized in controlling the iteration flow.opc_da/src/client/mod.rs (1)
10-10: Ensure Proper Documentation for the NewiteratorModuleThe
iteratormodule has been added and publicly exported. Please ensure that the module and its contents are well-documented to assist users in understanding and utilizing its functionality.Also applies to: 19-19
opc_da/src/client/traits/client.rs (2)
21-21: Address TODOs to improve security and performance.The TODOs indicate potential improvements:
- Using
CoCreateInstanceExcould provide better control over server creationCLSCTX_ALLis overly permissive and could be restricted based on actual requirementsConsider implementing these improvements to enhance security and performance:
- Replace
CoCreateInstancewithCoCreateInstanceExfor better control- Use more restrictive CLSCTX flags based on actual server location requirements (e.g.,
CLSCTX_LOCAL_SERVERif remote servers aren't needed)Also applies to: 26-26
35-37: Enhance error message specificity.The current error message "Failed to enumerate server classes" could be more informative by including the specific failure mode or HRESULT code.
- windows::core::Error::new(e.code(), "Failed to enumerate server classes") + windows::core::Error::new(e.code(), &format!("Failed to enumerate server classes: {:#x}", e.code().0))opc_da/src/client/tests.rs (3)
9-9: Consider using builder pattern for client creation.The change from
V2tov2()suggests a move towards factory methods. Consider implementing a builder pattern for more flexible client configuration.Example implementation:
let client = unified::Client::builder() .version(2) .with_timeout(Duration::from_secs(30)) .build() .expect("Failed to create client");
Line range hint
8-124: Consider splitting test into smaller, focused test cases.The current test function is quite long and tests multiple functionalities. Consider breaking it down into smaller, focused test cases for better maintainability and easier debugging:
- Server enumeration test
- Server creation test
- Group management test
- Item operations test
Example structure:
#[test] fn test_server_enumeration() { let client = setup_test_client(); let servers = client.get_servers().expect("Failed to get servers"); // Test server enumeration } #[test] fn test_server_creation() { let (client, server_id) = setup_test_environment(); let server = client.create_server(server_id).expect("Failed to create server"); // Test server creation } #[test] fn test_group_management() { let (client, server) = setup_test_server(); let mut group_server_handle = 0u32; let mut revised_percent_deadband = 0u32; // Test group creation and management } fn setup_test_client() -> Guard<unified::Client> { Guard::new(unified::Client::v2()).expect("Failed to create guard") }
71-84: Improve error handling in group creation test.The group creation test uses multiple expect() calls which could make debugging difficult. Consider using more descriptive error handling:
- let group = server - .add_group( - "test", - true, - 0, - 0, - 0, - 0, - 0.0, - &mut revised_percent_deadband, - &mut group_server_handle, - ) - .expect("Failed to add group"); + let group = server + .add_group( + "test", + true, + 0, + 0, + 0, + 0, + 0.0, + &mut revised_percent_deadband, + &mut group_server_handle, + ) + .map_err(|e| { + format!( + "Failed to add group. Error: {}, Deadband: {}, Handle: {}", + e, + revised_percent_deadband, + group_server_handle + ) + })?;opc_da/src/client/memory.rs (2)
89-95: Add safety documentation for as_mut_len_ptrThis method returns a raw pointer that could be used to modify the length. Add safety documentation to warn about potential memory safety issues if the length is modified incorrectly.
291-296: Consider adding UTF-16 encoding error handlingThe
from_strimplementation could fail if the input string contains surrogate pairs that can't be properly encoded. Consider adding explicit error handling for UTF-16 encoding edge cases.Example implementation:
fn from_str(s: &str) -> Result<Self, Self::Err> { - Ok(Self::from(s)) + let encoded: Vec<u16> = s.encode_utf16().chain(Some(0)).collect(); + if encoded.iter().any(|&c| c == 0xFFFF) { + return Err(windows::Win32::Foundation::E_INVALIDARG.into()); + } + Ok(Self::new(Some(encoded))) }
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📒 Files selected for processing (19)
opc_da/src/client/iterator.rs(1 hunks)opc_da/src/client/memory.rs(18 hunks)opc_da/src/client/mod.rs(1 hunks)opc_da/src/client/tests.rs(2 hunks)opc_da/src/client/traits/browse.rs(1 hunks)opc_da/src/client/traits/client.rs(1 hunks)opc_da/src/client/traits/group_state_mgt.rs(1 hunks)opc_da/src/client/traits/item_properties.rs(1 hunks)opc_da/src/client/traits/server.rs(5 hunks)opc_da/src/client/unified/actor/client.rs(1 hunks)opc_da/src/client/unified/actor/tests.rs(1 hunks)opc_da/src/client/unified/client.rs(1 hunks)opc_da/src/client/unified/group.rs(1 hunks)opc_da/src/client/unified/mod.rs(0 hunks)opc_da/src/client/unified/server.rs(1 hunks)opc_da/src/client/v1/mod.rs(2 hunks)opc_da/src/client/v2/mod.rs(2 hunks)opc_da/src/client/v3/mod.rs(2 hunks)opc_da/src/def.rs(3 hunks)
💤 Files with no reviewable changes (1)
- opc_da/src/client/unified/mod.rs
🚧 Files skipped from review as they are similar to previous changes (1)
- opc_da/src/client/v3/mod.rs
🔇 Additional comments (13)
opc_da/src/client/traits/server.rs (1)
105-111: Verify Impact of Return Type Change in create_group_enumerator Method
The return type of create_group_enumerator has been changed to windows::core::Result<GroupIterator<Group>>. Ensure that all calling code is updated to handle the new return type and that this change doesn't introduce any breaking changes elsewhere in the codebase.
opc_da/src/def.rs (2)
Line range hint 215-234: Ensure Correct Handling of Pointers in ItemResult::try_from_native
Verify that the RemoteArray::from_raw method safely handles the raw pointers and sizes provided in the native structure to prevent any potential undefined behavior or memory safety issues.
123-124: Verify Consistent Field Renaming Across the Codebase
Fields client_group_handle and server_group_handle have been renamed to client_handle and server_handle in GroupState. Ensure that all references to these fields throughout the codebase have been updated accordingly to prevent any discrepancies.
Run the following script to check for any remaining references to the old field names:
opc_da/src/client/unified/actor/tests.rs (1)
8-8: Verify Consistent Use of Client::v2() for Client Instantiation
The client instantiation has been updated to use the method Client::v2(). Ensure that all instances of client creation throughout the codebase have been updated to use the new instantiation methods (v1(), v2(), v3()) to maintain consistency.
Run the following script to check for any remaining direct enum variant instantiations:
✅ Verification successful
Let me search for all client instantiations to verify if they're using the constructor methods consistently.
Let me check the Client enum definition and its associated methods to understand the intended usage pattern.
Client Instantiation Pattern is Correctly Implemented
The codebase consistently uses the proper constructor methods (v1(), v2(), v3()) for client instantiation. The Client::V1, Client::V2, and Client::V3 variants are only used internally in match expressions within the implementation, which is the correct pattern. All client instantiations in tests use the proper Client::v2() method.
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Script:
#!/bin/bash
# Description: Search for direct enum variant usage in client instantiation.
# Search for 'Client::V1', 'Client::V2', 'Client::V3'. Expect: No matches.
rg 'Client::V[1-3]'
Length of output: 654
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#!/bin/bash
# Search for Client instantiation patterns
rg -A 2 'Client::new|Client::v[123]|Client::from'
# Also search for any struct definitions or enum variants to understand the client structure
ast-grep --pattern 'enum Client {
$$$
}'
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#!/bin/bash
# Find the Client implementation and its methods
ast-grep --pattern 'impl Client {
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# Also search for any direct instantiations or usages of Client
rg -B 2 -A 2 'Client::'
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opc_da/src/client/unified/group.rs (1)
43-59: Addition of From Trait Implementations Improves Interoperability
Implementing From for v1::Group, v2::Group, and v3::Group allows for seamless conversion to the unified Group enum, enhancing the ergonomics and maintainability of the code.
opc_da/src/client/unified/actor/client.rs (1)
4-4: LGTM! Import reordering maintains functionality.
The reordering of imports improves readability while maintaining the same functionality. The actor implementation remains robust with proper message handling and error propagation.
opc_da/src/client/traits/browse.rs (1)
109-109: LGTM! Good safety practice improvement
The explicit unsafe block properly scopes the array length manipulation, making it clear where unsafe operations occur.
opc_da/src/client/traits/item_properties.rs (1)
59-63: LGTM! Consistent safety improvement
The unsafe block properly encapsulates all array length manipulations, maintaining consistency with other similar operations in the codebase.
opc_da/src/client/memory.rs (3)
97-103: Consider strengthening safety guarantees for set_len
The set_len method can lead to memory safety issues if called with an incorrect length. Consider marking it as unsafe to make the safety requirements more explicit.
Line range hint 233-282: LGTM! Well-designed local memory management
The LocalPointer implementation provides a safe abstraction for managing local memory with proper null pointer handling and clear documentation.
158-165:
Consider marking as_ref() method as unsafe
The as_ref() method dereferences a raw pointer, which can lead to undefined behavior if the pointer is invalid. Marking this method as unsafe explicitly communicates the safety contract to the users of this API.
Apply this diff:
- pub fn as_ref(&self) -> Option<&T> {
+ pub unsafe fn as_ref(&self) -> Option<&T> {Likely invalid or redundant comment.
opc_da/src/client/v1/mod.rs (1)
16-22: LGTM! Clean Client implementation
The Client implementation for OPC DA 1.0 is well-structured with proper trait implementation and documentation.
opc_da/src/client/v2/mod.rs (1)
18-24: LGTM! Consistent Client implementation
The Client implementation for OPC DA 2.0 maintains consistency with the v1 implementation while using the appropriate version-specific CATALOG_ID.
…ime with std::time::SystemTime, updating method signatures, and enhancing trait definitions.
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Actionable comments posted: 1
🧹 Outside diff range and nitpick comments (1)
opc_da/src/client/unified/server.rs (1)
15-53: Implement error handling inadd_groupmethodConsider adding explicit error checks and handling within the
add_groupmethod to manage potential failures from the underlying server calls. This will enhance robustness and provide clearer error messages to the users.
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📒 Files selected for processing (9)
opc_da/src/client/traits/group_state_mgt.rs(4 hunks)opc_da/src/client/unified/group.rs(3 hunks)opc_da/src/client/unified/server.rs(1 hunks)opc_da/src/def.rs(8 hunks)opc_da/src/server/com/base/basic.rs(1 hunks)opc_da/src/server/com/server.rs(3 hunks)opc_da/src/server/com/variant.rs(1 hunks)opc_da/src/server/traits/def.rs(3 hunks)opc_da/src/server/traits/server.rs(3 hunks)
🚧 Files skipped from review as they are similar to previous changes (2)
- opc_da/src/client/unified/group.rs
- opc_da/src/client/traits/group_state_mgt.rs
🔇 Additional comments (15)
opc_da/src/server/traits/def.rs (5)
90-90: Handle optional timestamps appropriately in ItemVqt
The timestamp field in ItemVqt is now Option<std::time::SystemTime>. Ensure that all logic dealing with ItemVqt accounts for the None case to prevent potential runtime errors.
96-96: Consistent timestamp type in VqtWithError
The timestamp field in VqtWithError now uses std::time::SystemTime. Confirm that any conversions to and from COM types handle this change correctly.
303-303: Verify correct timestamp conversion in ItemVqt
Ensure that TryFromNative::try_from_native(&value.ftTimeStamp) accurately converts the COM FILETIME to std::time::SystemTime, and that error handling is properly implemented for invalid timestamps.
84-84: Ensure consistent use of std::time::SystemTime
The timestamp field in Vqt now uses std::time::SystemTime. Verify that this change is consistently applied throughout the codebase to prevent any type mismatches.
Run the following script to check for any remaining usages of the old SystemTime type:
✅ Verification successful
SystemTime usage is consistent across the codebase
All occurrences of SystemTime in the Rust code consistently use the fully qualified path std::time::SystemTime. No type mismatches or inconsistencies were found.
🏁 Scripts executed
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Script:
#!/bin/bash
# Description: Find any usages of the old `SystemTime` type.
rg '\bSystemTime\b' --type rust
Length of output: 741
311-319: Confirm implementation of TryFrom<def::ServerStatus>
The TryFrom implementation now references def::ServerStatus. Verify that def::ServerStatus is correctly defined and that all fields are properly converted to opc_da_bindings::tagOPCSERVERSTATUS.
Run the following script to ensure def::ServerStatus is properly defined:
✅ Verification successful
Let me gather more information about the ServerStatus struct definition and its fields.
Let me check the target struct tagOPCSERVERSTATUS to ensure field compatibility.
Let me check the ServerState type conversion since it's using to_native() method.
Implementation of TryFrom<def::ServerStatus> is correct
The verification confirms that:
- All fields from
def::ServerStatusare properly mapped totagOPCSERVERSTATUS - The field types match and have appropriate conversions:
- Time fields use
TryToNativefor FILETIME conversion server_stateuses the correctto_native()implementation- Integer fields (group_count, band_width, versions) are directly assigned
- Time fields use
- The
ServerStateenum has complete bidirectional conversion withtagOPCSERVERSTATE
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#!/bin/bash
# Description: Verify the definition of `def::ServerStatus`
rg 'pub struct ServerStatus' --type rust
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# Get the complete definition of ServerStatus struct and related types
rg -A 10 'pub struct ServerStatus' --type rust
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rg 'tagOPCSERVERSTATUS' --type rust -A 10
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rg "ServerState" --type rust -A 5
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opc_da/src/server/com/base/basic.rs (1)
10-10: Update modules to use std::time::SystemTime
The timestamp field in Value now uses Option<std::time::SystemTime>. Make sure all modules that interact with Value are updated to reflect this type change.
opc_da/src/client/unified/server.rs (3)
55-63: Ensure accurate status retrieval in get_status method
Confirm that the get_status method correctly retrieves and converts the server status for all server versions (V1, V2, V3). This includes proper handling of any COM errors and ensuring that the def::ServerStatus::try_from_native conversion is accurate.
65-71: Verify group removal logic in remove_group method
Ensure that the remove_group method behaves consistently across all server variants and that it correctly handles the force parameter. This includes verifying that resources are properly released and that any server-side cleanup is performed.
73-86: 🛠️ Refactor suggestion
Enhance type safety for scope parameter
The scope parameter in create_group_enumerator is of type def::EnumScope. To improve type safety and prevent invalid values, consider changing it to opc_da_bindings::tagOPCENUMSCOPE.
opc_da/src/server/com/variant.rs (1)
3-3:
Update codebase after removal of FILETIME conversions
With the removal of the From<SystemTime> for FILETIME and From<FILETIME> for SystemTime implementations, ensure that any code relying on these conversions is updated accordingly. This is crucial to prevent build errors and maintain accurate time conversions throughout the application.
Also applies to: 7-7
opc_da/src/server/traits/server.rs (1)
198-201: LGTM! Improved type organization through proper namespacing.
The changes properly namespace the types (ServerStatus and EnumScope) under the def module, improving code organization and type clarity. The method signature reformatting also enhances readability.
Also applies to: 243-243, 249-249
opc_da/src/def.rs (2)
14-23: Improved trait design with immutable references.
The ToNative trait now uses an immutable reference, which is more idiomatic and safer as it prevents unnecessary mutable access. The new FromNative trait provides a clean interface for native type conversions.
79-128: Well-implemented time conversion with proper error handling.
The implementation correctly:
- Handles pre-1970 dates with appropriate error messages
- Uses checked arithmetic to prevent overflows
- Provides bidirectional conversion between FILETIME and SystemTime
opc_da/src/server/com/server.rs (2)
116-116: LGTM! Improved type conversion clarity.
The change to use TryFromNative::try_from_native directly instead of try_into makes the conversion intent clearer and aligns with the new trait system.
515-516: LGTM! Added proper error handling for timestamp conversion.
The change properly propagates potential errors from timestamp conversion using try_to_native(), improving robustness.
…detailed error messages for unknown server states and enum scopes.
…oup creation, and enhance server interaction methods
Summary by CodeRabbit
New Features
Clientstructs for OPC DA 1.0, 2.0, and 3.0, providing new entry points for server interactions.ClientTraitfor enhanced client functionality, including methods for server retrieval and creation.Serverenum.GroupIteratorfor iterating over groups in a more structured manner.Bug Fixes
Documentation
Refactor
create_groupmethod fromServerTrait, altering group management approach.Groupenum withFromtrait implementations for better interoperability.