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Diffstat (limited to 'source/Plugins/SystemRuntime/MacOSX/AppleGetPendingItemsHandler.h')
| -rw-r--r-- | source/Plugins/SystemRuntime/MacOSX/AppleGetPendingItemsHandler.h | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/source/Plugins/SystemRuntime/MacOSX/AppleGetPendingItemsHandler.h b/source/Plugins/SystemRuntime/MacOSX/AppleGetPendingItemsHandler.h deleted file mode 100644 index d35a72c2ff43..000000000000 --- a/source/Plugins/SystemRuntime/MacOSX/AppleGetPendingItemsHandler.h +++ /dev/null @@ -1,120 +0,0 @@ -//===-- AppleGetPendingItemsHandler.h ----------------------------*- C++ -//-*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// - -#ifndef lldb_AppleGetPendingItemsHandler_h_ -#define lldb_AppleGetPendingItemsHandler_h_ - -#include <map> -#include <mutex> -#include <vector> - -#include "lldb/Symbol/CompilerType.h" -#include "lldb/Utility/Status.h" -#include "lldb/lldb-public.h" - -// This class will insert a UtilityFunction into the inferior process for -// calling libBacktraceRecording's -// __introspection_dispatch_queue_get_pending_items() -// function. The function in the inferior will return a struct by value -// with these members: -// -// struct get_pending_items_return_values -// { -// introspection_dispatch_item_info_ref *items_buffer; -// uint64_t items_buffer_size; -// uint64_t count; -// }; -// -// The items_buffer pointer is an address in the inferior program's address -// space (items_buffer_size in size) which must be mach_vm_deallocate'd by -// lldb. count is the number of items that were stored in the buffer. -// -// The AppleGetPendingItemsHandler object should persist so that the -// UtilityFunction -// can be reused multiple times. - -namespace lldb_private { - -class AppleGetPendingItemsHandler { -public: - AppleGetPendingItemsHandler(lldb_private::Process *process); - - ~AppleGetPendingItemsHandler(); - - struct GetPendingItemsReturnInfo { - lldb::addr_t items_buffer_ptr; /* the address of the pending items buffer - from libBacktraceRecording */ - lldb::addr_t - items_buffer_size; /* the size of the pending items buffer from - libBacktraceRecording */ - uint64_t count; /* the number of pending items included in the buffer */ - - GetPendingItemsReturnInfo() - : items_buffer_ptr(LLDB_INVALID_ADDRESS), items_buffer_size(0), - count(0) {} - }; - - //---------------------------------------------------------- - /// Get the list of pending items for a given queue via a call to - /// __introspection_dispatch_queue_get_pending_items. 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. - /// - /// @param [in] thread - /// The thread to run this plan on. - /// - /// @param [in] queue - /// The dispatch_queue_t value for the queue of interest. - /// - /// @param [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. - /// - /// @param [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. - /// - /// @param [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 items_buffer_ptr value will be - /// LLDB_INVALID_ADDRESS. - //---------------------------------------------------------- - GetPendingItemsReturnInfo GetPendingItems(Thread &thread, lldb::addr_t queue, - lldb::addr_t page_to_free, - uint64_t page_to_free_size, - lldb_private::Status &error); - - void Detach(); - -private: - lldb::addr_t - SetupGetPendingItemsFunction(Thread &thread, - ValueList &get_pending_items_arglist); - - static const char *g_get_pending_items_function_name; - static const char *g_get_pending_items_function_code; - - lldb_private::Process *m_process; - std::unique_ptr<UtilityFunction> m_get_pending_items_impl_code; - std::mutex m_get_pending_items_function_mutex; - - lldb::addr_t m_get_pending_items_return_buffer_addr; - std::mutex m_get_pending_items_retbuffer_mutex; -}; - -} // using namespace lldb_private - -#endif // lldb_AppleGetPendingItemsHandler_h_ |