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lldb_private::AppleGetItemInfoHandler Class Reference

#include <AppleGetItemInfoHandler.h>

Collaboration diagram for lldb_private::AppleGetItemInfoHandler:
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Classes

struct  GetItemInfoReturnInfo
 

Public Member Functions

 AppleGetItemInfoHandler (lldb_private::Process *process)
 
 ~AppleGetItemInfoHandler ()
 
GetItemInfoReturnInfo GetItemInfo (Thread &thread, lldb::addr_t item, lldb::addr_t page_to_free, uint64_t page_to_free_size, lldb_private::Status &error)
 Get the information about a work item by calling __introspection_dispatch_queue_item_get_info. More...
 
void Detach ()
 

Private Member Functions

lldb::addr_t SetupGetItemInfoFunction (Thread &thread, ValueList &get_item_info_arglist)
 

Private Attributes

lldb_private::Processm_process
 
std::unique_ptr< UtilityFunctionm_get_item_info_impl_code
 
std::mutex m_get_item_info_function_mutex
 
lldb::addr_t m_get_item_info_return_buffer_addr
 
std::mutex m_get_item_info_retbuffer_mutex
 

Static Private Attributes

static const char * g_get_item_info_function_name
 
static const char * g_get_item_info_function_code
 

Detailed Description

Definition at line 42 of file AppleGetItemInfoHandler.h.

Constructor & Destructor Documentation

◆ AppleGetItemInfoHandler()

AppleGetItemInfoHandler::AppleGetItemInfoHandler ( lldb_private::Process process)

Definition at line 95 of file AppleGetItemInfoHandler.cpp.

◆ ~AppleGetItemInfoHandler()

AppleGetItemInfoHandler::~AppleGetItemInfoHandler ( )
default

Member Function Documentation

◆ Detach()

void AppleGetItemInfoHandler::Detach ( )

◆ GetItemInfo()

AppleGetItemInfoHandler::GetItemInfoReturnInfo AppleGetItemInfoHandler::GetItemInfo ( Thread thread,
lldb::addr_t  item,
lldb::addr_t  page_to_free,
uint64_t  page_to_free_size,
lldb_private::Status error 
)

Get the information about a work item by calling __introspection_dispatch_queue_item_get_info.

If there's a page of memory that needs to be freed, pass in the address and size and it will be freed before getting the list of queues.

Parameters
[in]threadThe thread to run this plan on.
[in]itemThe introspection_dispatch_item_info_ref value for the item of interest.
[in]page_to_freeAn address of an inferior process vm page that needs to be deallocated, LLDB_INVALID_ADDRESS if this is not needed.
[in]page_to_free_sizeThe size of the vm page that needs to be deallocated if an address was passed in to page_to_free.
[out]errorThis object will be updated with the error status / error string from any failures encountered.
Returns
The result of the inferior function call execution. If there was a failure of any kind while getting the information, the item_buffer_ptr value will be LLDB_INVALID_ADDRESS.

Definition at line 212 of file AppleGetItemInfoHandler.cpp.

References lldb_private::Thread::CalculateExecutionContext(), lldb_private::Thread::CalculateProcess(), lldb_private::Thread::CalculateTarget(), lldb::eBasicTypeInt, lldb::eBasicTypeUnsignedLongLong, lldb::eBasicTypeVoid, lldb::eExpressionCompleted, error(), lldb_private::FunctionCaller::ExecuteFunction(), lldb_private::TypeSystemClang::GetBasicType(), lldb_private::ScratchTypeSystemClang::GetForTarget(), lldb_private::UserID::GetID(), lldb_private::GetLogIfAllCategoriesSet(), lldb_private::CompilerType::GetPointerType(), lldb_private::Value::GetScalar(), lldb_private::Thread::GetStackFrameAtIndex(), lldb_private::AppleGetItemInfoHandler::GetItemInfoReturnInfo::item_buffer_ptr, lldb_private::AppleGetItemInfoHandler::GetItemInfoReturnInfo::item_buffer_size, LIBLLDB_LOG_SYSTEM_RUNTIME, LLDB_INVALID_ADDRESS, LLDB_LOGF, m_get_item_info_impl_code, m_get_item_info_retbuffer_mutex, m_get_item_info_return_buffer_addr, m_process, lldb_private::ValueList::PushValue(), lldb_private::Process::ReadUnsignedIntegerFromMemory(), lldb_private::Thread::SafeToCallFunctions(), lldb_private::Value::Scalar, lldb_private::Value::SetCompilerType(), lldb_private::EvaluateExpressionOptions::SetIgnoreBreakpoints(), lldb_private::EvaluateExpressionOptions::SetIsForUtilityExpr(), lldb_private::EvaluateExpressionOptions::SetStopOthers(), lldb_private::EvaluateExpressionOptions::SetTimeout(), lldb_private::EvaluateExpressionOptions::SetTryAllThreads(), lldb_private::EvaluateExpressionOptions::SetUnwindOnError(), SetupGetItemInfoFunction(), and lldb_private::Value::SetValueType().

Referenced by SystemRuntimeMacOSX::CompleteQueueItem(), and SystemRuntimeMacOSX::GetExtendedBacktraceFromItemRef().

◆ SetupGetItemInfoFunction()

lldb::addr_t AppleGetItemInfoHandler::SetupGetItemInfoFunction ( Thread thread,
ValueList get_item_info_arglist 
)
private

Member Data Documentation

◆ g_get_item_info_function_code

const char * AppleGetItemInfoHandler::g_get_item_info_function_code
staticprivate

Definition at line 99 of file AppleGetItemInfoHandler.h.

Referenced by SetupGetItemInfoFunction().

◆ g_get_item_info_function_name

const char * AppleGetItemInfoHandler::g_get_item_info_function_name
staticprivate
Initial value:
=
"__lldb_backtrace_recording_get_item_info"

Definition at line 98 of file AppleGetItemInfoHandler.h.

Referenced by SetupGetItemInfoFunction().

◆ m_get_item_info_function_mutex

std::mutex lldb_private::AppleGetItemInfoHandler::m_get_item_info_function_mutex
private

Definition at line 103 of file AppleGetItemInfoHandler.h.

Referenced by SetupGetItemInfoFunction().

◆ m_get_item_info_impl_code

std::unique_ptr<UtilityFunction> lldb_private::AppleGetItemInfoHandler::m_get_item_info_impl_code
private

Definition at line 102 of file AppleGetItemInfoHandler.h.

Referenced by GetItemInfo(), and SetupGetItemInfoFunction().

◆ m_get_item_info_retbuffer_mutex

std::mutex lldb_private::AppleGetItemInfoHandler::m_get_item_info_retbuffer_mutex
private

Definition at line 106 of file AppleGetItemInfoHandler.h.

Referenced by Detach(), and GetItemInfo().

◆ m_get_item_info_return_buffer_addr

lldb::addr_t lldb_private::AppleGetItemInfoHandler::m_get_item_info_return_buffer_addr
private

Definition at line 105 of file AppleGetItemInfoHandler.h.

Referenced by Detach(), and GetItemInfo().

◆ m_process

lldb_private::Process* lldb_private::AppleGetItemInfoHandler::m_process
private

Definition at line 101 of file AppleGetItemInfoHandler.h.

Referenced by Detach(), and GetItemInfo().


The documentation for this class was generated from the following files: