gem5  v20.1.0.0
pollevent.hh
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28 
29 #ifndef __POLLEVENT_H__
30 #define __POLLEVENT_H__
31 
32 #include <poll.h>
33 
34 #include <vector>
35 
36 #include "sim/core.hh"
37 
38 class Checkpoint;
39 class PollQueue;
40 
41 class PollEvent : public Serializable
42 {
43  private:
44  friend class PollQueue;
45 
46  protected:
47  pollfd pfd;
49  bool enabled;
50 
51  public:
55  PollEvent(int fd, int event);
56  virtual ~PollEvent();
57 
62  void disable();
63  void enable();
64  virtual void process(int revent) = 0; // end of api_poll_event
66 
70  bool queued() { return queue != 0; }
71 
72  void serialize(CheckpointOut &cp) const override;
73  void unserialize(CheckpointIn &cp) override;
74 };
75 
76 class PollQueue
77 {
78  private:
81 
82  pollfd *poll_fds;
83  int max_size;
84  int num_fds;
85 
86  public:
90  PollQueue();
91  ~PollQueue();
92 
97  void copy();
98  void remove(PollEvent *event);
99  void schedule(PollEvent *event);
100  void service(); // end of api_poll_queue
102 
103 
104  public:
105  static void setupAsyncIO(int fd, bool set);
106 };
107 
111 extern PollQueue pollQueue;
112 
113 #endif // __POLLEVENT_H__
PollQueue::eventvec_t
std::vector< PollEvent * > eventvec_t
Definition: pollevent.hh:79
PollQueue::~PollQueue
~PollQueue()
Definition: pollevent.cc:115
Serializable
Basic support for object serialization.
Definition: serialize.hh:172
ArmISA::fd
Bitfield< 14, 12 > fd
Definition: types.hh:159
PollQueue::copy
void copy()
Definition: pollevent.cc:124
PollEvent::disable
void disable()
Definition: pollevent.cc:74
PollQueue::PollQueue
PollQueue()
Definition: pollevent.cc:111
PollEvent::process
virtual void process(int revent)=0
PollEvent::enable
void enable()
Definition: pollevent.cc:84
std::vector< PollEvent * >
PollQueue::schedule
void schedule(PollEvent *event)
Definition: pollevent.cc:159
PollQueue::setupAsyncIO
static void setupAsyncIO(int fd, bool set)
Definition: pollevent.cc:227
pollQueue
PollQueue pollQueue
Definition: pollevent.cc:55
cp
Definition: cprintf.cc:40
PollEvent::PollEvent
PollEvent(int fd, int event)
Definition: pollevent.cc:59
PollQueue::num_fds
int num_fds
Definition: pollevent.hh:84
PollQueue::poll_fds
pollfd * poll_fds
Definition: pollevent.hh:82
MipsISA::event
Bitfield< 10, 5 > event
Definition: pra_constants.hh:297
PollEvent::queue
PollQueue * queue
Definition: pollevent.hh:48
core.hh
PollEvent::serialize
void serialize(CheckpointOut &cp) const override
Serialize an object.
Definition: pollevent.cc:94
PollEvent::queued
bool queued()
Definition: pollevent.hh:70
PollQueue::events
eventvec_t events
Definition: pollevent.hh:80
PollEvent::unserialize
void unserialize(CheckpointIn &cp) override
Unserialize an object.
Definition: pollevent.cc:102
PollQueue::max_size
int max_size
Definition: pollevent.hh:83
PollQueue::remove
void remove(PollEvent *event)
Definition: pollevent.cc:139
PollQueue
Definition: pollevent.hh:76
PollEvent::pfd
pollfd pfd
Definition: pollevent.hh:47
CheckpointOut
std::ostream CheckpointOut
Definition: serialize.hh:63
PollEvent
Definition: pollevent.hh:41
PollQueue::service
void service()
Definition: pollevent.cc:186
PollEvent::enabled
bool enabled
Definition: pollevent.hh:49
CheckpointIn
Definition: serialize.hh:67
PollEvent::~PollEvent
virtual ~PollEvent()
Definition: pollevent.cc:67

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