b9c1b51e45
*** to conform to clang-format’s LLVM style. This kind of mass change has
*** two obvious implications:
Firstly, merging this particular commit into a downstream fork may be a huge
effort. Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit. The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;
The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.
Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit. There are alternatives available that will attempt
to look through this change and find the appropriate prior commit. YMMV.
llvm-svn: 280751
115 lines
3.7 KiB
C++
115 lines
3.7 KiB
C++
//===-- DarwinLogCollector.h ------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef DarwinLogCollector_h
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#define DarwinLogCollector_h
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#include <sys/types.h>
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#include <memory>
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#include <mutex>
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#include <unordered_map>
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#include "ActivityStore.h"
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#include "ActivityStreamSPI.h"
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#include "DNBDefs.h"
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#include "DarwinLogEvent.h"
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#include "DarwinLogInterfaces.h"
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#include "JSON.h"
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class DarwinLogCollector;
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typedef std::shared_ptr<DarwinLogCollector> DarwinLogCollectorSP;
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class DarwinLogCollector
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: public std::enable_shared_from_this<DarwinLogCollector>,
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public ActivityStore {
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public:
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//------------------------------------------------------------------
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/// Return whether the os_log and activity tracing SPI is available.
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///
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/// @return \b true if the activity stream support is available,
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/// \b false otherwise.
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//------------------------------------------------------------------
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static bool IsSupported();
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//------------------------------------------------------------------
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/// Return a log function suitable for DNBLog to use as the internal
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/// logging function.
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///
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/// @return a DNBLog-style logging function if IsSupported() returns
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/// true; otherwise, returns nullptr.
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//------------------------------------------------------------------
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static DNBCallbackLog GetLogFunction();
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static bool StartCollectingForProcess(nub_process_t pid,
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const JSONObject &config);
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static bool CancelStreamForProcess(nub_process_t pid);
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static DarwinLogEventVector GetEventsForProcess(nub_process_t pid);
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~DarwinLogCollector();
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pid_t GetProcessID() const { return m_pid; }
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//------------------------------------------------------------------
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// ActivityStore API
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//------------------------------------------------------------------
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const char *GetActivityForID(os_activity_id_t activity_id) const override;
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std::string
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GetActivityChainForID(os_activity_id_t activity_id) const override;
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private:
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DarwinLogCollector() = delete;
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DarwinLogCollector(const DarwinLogCollector &) = delete;
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DarwinLogCollector &operator=(const DarwinLogCollector &) = delete;
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explicit DarwinLogCollector(nub_process_t pid,
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const LogFilterChainSP &filter_chain_sp);
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void SignalDataAvailable();
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void SetActivityStream(os_activity_stream_t activity_stream);
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bool HandleStreamEntry(os_activity_stream_entry_t entry, int error);
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DarwinLogEventVector RemoveEvents();
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void CancelActivityStream();
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void GetActivityChainForID_internal(os_activity_id_t activity_id,
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std::string &result, size_t depth) const;
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struct ActivityInfo {
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ActivityInfo(const char *name, os_activity_id_t activity_id,
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os_activity_id_t parent_activity_id)
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: m_name(name), m_id(activity_id), m_parent_id(parent_activity_id) {}
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const std::string m_name;
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const os_activity_id_t m_id;
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const os_activity_id_t m_parent_id;
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};
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using ActivityMap = std::unordered_map<os_activity_id_t, ActivityInfo>;
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const nub_process_t m_pid;
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os_activity_stream_t m_activity_stream;
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DarwinLogEventVector m_events;
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std::mutex m_events_mutex;
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LogFilterChainSP m_filter_chain_sp;
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/// Mutex to protect activity info (activity name and parent structures)
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mutable std::mutex m_activity_info_mutex;
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/// Map of activity id to ActivityInfo
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ActivityMap m_activity_map;
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};
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#endif /* LogStreamCollector_h */
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