lldb_private::AppleGetQueuesHandler Class Reference

#include <AppleGetQueuesHandler.h>

Classes
struct	GetQueuesReturnInfo

Public Member Functions
	AppleGetQueuesHandler (lldb_private::Process *process)
	~AppleGetQueuesHandler ()
GetQueuesReturnInfo	GetCurrentQueues (Thread &thread, lldb::addr_t page_to_free, uint64_t page_to_free_size, lldb_private::Status &error)
	Get the list of queues that exist (with any active or pending items) via a call to introspection_get_dispatch_queues().
void	Detach ()

Private Member Functions
lldb::addr_t	SetupGetQueuesFunction (Thread &thread, ValueList &get_queues_arglist)

Private Attributes
lldb_private::Process *	m_process
std::unique_ptr< UtilityFunction >	m_get_queues_impl_code_up
std::mutex	m_get_queues_function_mutex
lldb::addr_t	m_get_queues_return_buffer_addr
std::mutex	m_get_queues_retbuffer_mutex

Static Private Attributes
static const char *	g_get_current_queues_function_name
static const char *	g_get_current_queues_function_code

Detailed Description

Definition at line 41 of file AppleGetQueuesHandler.h.

Constructor & Destructor Documentation

AppleGetQueuesHandler()

AppleGetQueuesHandler::AppleGetQueuesHandler

(

lldb_private::Process *

process

)

Definition at line 97 of file AppleGetQueuesHandler.cpp.

~AppleGetQueuesHandler()

AppleGetQueuesHandler::~AppleGetQueuesHandler ( )

default

Member Function Documentation

Detach()

void AppleGetQueuesHandler::Detach

(

)

Definition at line 105 of file AppleGetQueuesHandler.cpp.

References lldb_private::Process::DeallocateMemory(), lldb_private::Process::IsAlive(), LLDB_INVALID_ADDRESS, m_get_queues_retbuffer_mutex, m_get_queues_return_buffer_addr, and m_process.

Referenced by SystemRuntimeMacOSX::Detach().

GetCurrentQueues()

AppleGetQueuesHandler::GetQueuesReturnInfo AppleGetQueuesHandler::GetCurrentQueues	(	Thread &	thread,
		lldb::addr_t	page_to_free,
		uint64_t	page_to_free_size,
		lldb_private::Status &	error
	)

Get the list of queues that exist (with any active or pending items) via a call to introspection_get_dispatch_queues().

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]	thread	The thread to run this plan on.
[in]	page_to_free	An address of an inferior process vm page that needs to be deallocated, LLDB_INVALID_ADDRESS if this is not needed.
[in]	page_to_free_size	The size of the vm page that needs to be deallocated if an address was passed in to page_to_free.
[out]	error	This 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 queues_buffer_ptr value will be LLDB_INVALID_ADDRESS.

Definition at line 218 of file AppleGetQueuesHandler.cpp.

References lldb_private::Thread::CalculateExecutionContext(), lldb_private::Thread::CalculateProcess(), lldb_private::Thread::CalculateTarget(), lldb_private::AppleGetQueuesHandler::GetQueuesReturnInfo::count, lldb::eBasicTypeInt, lldb::eBasicTypeUnsignedLongLong, lldb::eBasicTypeVoid, lldb::eExpressionCompleted, error(), lldb_private::FunctionCaller::ExecuteFunction(), lldb_private::ScratchTypeSystemClang::GetForTarget(), lldb_private::UserID::GetID(), lldb_private::GetLog(), lldb_private::CompilerType::GetPointerType(), lldb_private::Value::GetScalar(), lldb_private::Thread::GetStackFrameAtIndex(), LLDB_INVALID_ADDRESS, LLDB_LOGF, m_get_queues_impl_code_up, m_get_queues_retbuffer_mutex, m_get_queues_return_buffer_addr, m_process, lldb_private::ValueList::PushValue(), lldb_private::AppleGetQueuesHandler::GetQueuesReturnInfo::queues_buffer_ptr, lldb_private::AppleGetQueuesHandler::GetQueuesReturnInfo::queues_buffer_size, 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(), SetupGetQueuesFunction(), lldb_private::Value::SetValueType(), and lldb_private::SystemRuntime.

Referenced by SystemRuntimeMacOSX::PopulateQueueList().

SetupGetQueuesFunction()

lldb::addr_t AppleGetQueuesHandler::SetupGetQueuesFunction ( Thread &  thread, ValueList &  get_queues_arglist  )

private

Definition at line 143 of file AppleGetQueuesHandler.cpp.

References lldb_private::DiagnosticManager::Clear(), lldb_private::Target::CreateUtilityFunction(), lldb_private::DiagnosticManager::Dump(), lldb::eBasicTypeVoid, lldb::eLanguageTypeC, error(), g_get_current_queues_function_code, g_get_current_queues_function_name, lldb_private::ScratchTypeSystemClang::GetForTarget(), lldb_private::GetLog(), lldb_private::CompilerType::GetPointerType(), lldb_private::Thread::GetProcess(), lldb_private::ExecutionContext::GetTargetRef(), LLDB_INVALID_ADDRESS, LLDB_LOG_ERROR, LLDB_LOGF, m_get_queues_function_mutex, m_get_queues_impl_code_up, lldb_private::SystemRuntime, and lldb_private::FunctionCaller::WriteFunctionArguments().

Referenced by GetCurrentQueues().

Member Data Documentation

g_get_current_queues_function_code

const char * AppleGetQueuesHandler::g_get_current_queues_function_code

staticprivate

Definition at line 96 of file AppleGetQueuesHandler.h.

Referenced by SetupGetQueuesFunction().

g_get_current_queues_function_name

const char * AppleGetQueuesHandler::g_get_current_queues_function_name

staticprivate

Initial value:

=
    "__lldb_backtrace_recording_get_current_queues"

Definition at line 95 of file AppleGetQueuesHandler.h.

Referenced by SetupGetQueuesFunction().

m_get_queues_function_mutex

std::mutex lldb_private::AppleGetQueuesHandler::m_get_queues_function_mutex

private

Definition at line 100 of file AppleGetQueuesHandler.h.

Referenced by SetupGetQueuesFunction().

m_get_queues_impl_code_up

std::unique_ptr<UtilityFunction> lldb_private::AppleGetQueuesHandler::m_get_queues_impl_code_up

private

Definition at line 99 of file AppleGetQueuesHandler.h.

Referenced by GetCurrentQueues(), and SetupGetQueuesFunction().

m_get_queues_retbuffer_mutex

std::mutex lldb_private::AppleGetQueuesHandler::m_get_queues_retbuffer_mutex

private

Definition at line 103 of file AppleGetQueuesHandler.h.

Referenced by Detach(), and GetCurrentQueues().

m_get_queues_return_buffer_addr

lldb::addr_t lldb_private::AppleGetQueuesHandler::m_get_queues_return_buffer_addr

private

Definition at line 102 of file AppleGetQueuesHandler.h.

Referenced by Detach(), and GetCurrentQueues().

m_process

lldb_private::Process* lldb_private::AppleGetQueuesHandler::m_process

private

Definition at line 98 of file AppleGetQueuesHandler.h.

Referenced by Detach(), and GetCurrentQueues().

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

• AppleGetQueuesHandler.h
• AppleGetQueuesHandler.cpp