ThreadList.h revision 24943d2ee8bfaa7cf5893e4709143924157a5c1e 
1//===-- ThreadList.h --------------------------------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef liblldb_ThreadList_h_
11#define liblldb_ThreadList_h_
12
13#include <vector>
14
15#include "lldb/lldb-private.h"
16#include "lldb/Host/Mutex.h"
17#include "lldb/Core/UserID.h"
18
19
20// FIXME: Currently this is a thread list with lots of functionality for use only by
21// the process for which this is the thread list.  If we ever want a container class
22// to hand out that is just a random subset of threads, with iterator functionality,
23// then we should make that part a base class, and make a ProcessThreadList for the
24// process.
25namespace lldb_private {
26
27class ThreadList
28{
29friend class Process;
30
31public:
32
33    ThreadList (Process *process);
34
35    ThreadList (const ThreadList &rhs);
36
37    ~ThreadList ();
38
39    const ThreadList&
40    operator = (const ThreadList& rhs);
41
42    uint32_t
43    GetSize(bool can_update = true);
44
45    void
46    AddThread (lldb::ThreadSP &thread_sp);
47
48    lldb::ThreadSP
49    GetCurrentThread ();
50
51    bool
52    SetCurrentThreadByID (lldb::tid_t tid);
53
54    bool
55    SetCurrentThreadByIndexID (uint32_t index_id);
56
57    void
58    Clear();
59
60    // Note that "idx" is not the same as the "thread_index". It is a zero
61    // based index to accessing the current threads, whereas "thread_index"
62    // is a unique index assigned
63    lldb::ThreadSP
64    GetThreadAtIndex (uint32_t idx, bool can_update = true);
65
66    lldb::ThreadSP
67    FindThreadByID (lldb::tid_t tid, bool can_update = true);
68
69    lldb::ThreadSP
70    FindThreadByIndexID (lldb::tid_t index_id, bool can_update = true);
71
72    lldb::ThreadSP
73    GetThreadSPForThreadPtr (Thread *thread_ptr);
74
75    bool
76    ShouldStop (Event *event_ptr);
77
78    lldb::Vote
79    ShouldReportStop (Event *event_ptr);
80
81    lldb::Vote
82    ShouldReportRun (Event *event_ptr);
83
84    void
85    RefreshStateAfterStop ();
86
87    bool
88    WillResume ();
89
90    void
91    DidResume ();
92
93    void
94    DiscardThreadPlans();
95
96    uint32_t
97    GetStopID () const;
98
99    void
100    SetStopID (uint32_t stop_id);
101
102protected:
103
104    typedef std::vector<lldb::ThreadSP> collection;
105    //------------------------------------------------------------------
106    // Classes that inherit from Process can see and modify these
107    //------------------------------------------------------------------
108    Process *m_process; ///< The process that manages this thread list.
109    uint32_t m_stop_id; ///< The process stop ID that this thread list is valid for.
110    collection m_threads; ///< The threads for this process.
111    mutable Mutex m_threads_mutex;
112    lldb::tid_t m_current_tid;  ///< For targets that need the notion of a current thread.
113
114private:
115    ThreadList ();
116};
117
118} // namespace lldb_private
119
120#endif  // liblldb_ThreadList_h_
121