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loop-watcher.c
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21 
22 #include <assert.h>
23 
24 #include "uv.h"
25 #include "internal.h"
26 #include "handle-inl.h"
27 
28 
29 void uv_loop_watcher_endgame(uv_loop_t* loop, uv_handle_t* handle) {
30  if (handle->flags & UV_HANDLE_CLOSING) {
31  assert(!(handle->flags & UV_HANDLE_CLOSED));
32  handle->flags |= UV_HANDLE_CLOSED;
33  uv__handle_close(handle);
34  }
35 }
36 
37 
38 #define UV_LOOP_WATCHER_DEFINE(name, NAME) \
39  int uv_##name##_init(uv_loop_t* loop, uv_##name##_t* handle) { \
40  uv__handle_init(loop, (uv_handle_t*) handle, UV_##NAME); \
41  \
42  return 0; \
43  } \
44  \
45  \
46  int uv_##name##_start(uv_##name##_t* handle, uv_##name##_cb cb) { \
47  uv_loop_t* loop = handle->loop; \
48  uv_##name##_t* old_head; \
49  \
50  assert(handle->type == UV_##NAME); \
51  \
52  if (uv__is_active(handle)) \
53  return 0; \
54  \
55  if (cb == NULL) \
56  return UV_EINVAL; \
57  \
58  old_head = loop->name##_handles; \
59  \
60  handle->name##_next = old_head; \
61  handle->name##_prev = NULL; \
62  \
63  if (old_head) { \
64  old_head->name##_prev = handle; \
65  } \
66  \
67  loop->name##_handles = handle; \
68  \
69  handle->name##_cb = cb; \
70  uv__handle_start(handle); \
71  \
72  return 0; \
73  } \
74  \
75  \
76  int uv_##name##_stop(uv_##name##_t* handle) { \
77  uv_loop_t* loop = handle->loop; \
78  \
79  assert(handle->type == UV_##NAME); \
80  \
81  if (!uv__is_active(handle)) \
82  return 0; \
83  \
84  /* Update loop head if needed */ \
85  if (loop->name##_handles == handle) { \
86  loop->name##_handles = handle->name##_next; \
87  } \
88  \
89  /* Update the iterator-next pointer of needed */ \
90  if (loop->next_##name##_handle == handle) { \
91  loop->next_##name##_handle = handle->name##_next; \
92  } \
93  \
94  if (handle->name##_prev) { \
95  handle->name##_prev->name##_next = handle->name##_next; \
96  } \
97  if (handle->name##_next) { \
98  handle->name##_next->name##_prev = handle->name##_prev; \
99  } \
100  \
101  uv__handle_stop(handle); \
102  \
103  return 0; \
104  } \
105  \
106  \
107  void uv_##name##_invoke(uv_loop_t* loop) { \
108  uv_##name##_t* handle; \
109  \
110  (loop)->next_##name##_handle = (loop)->name##_handles; \
111  \
112  while ((loop)->next_##name##_handle != NULL) { \
113  handle = (loop)->next_##name##_handle; \
114  (loop)->next_##name##_handle = handle->name##_next; \
115  \
116  handle->name##_cb(handle); \
117  } \
118  }
119 
120 UV_LOOP_WATCHER_DEFINE(prepare, PREPARE)
121 UV_LOOP_WATCHER_DEFINE(check, CHECK)
122 UV_LOOP_WATCHER_DEFINE(idle, IDLE)
handle
static mcore_handle handle
Definition: asm_mcore.c:8
check
lzma_check check
Definition: container.h:292
uv__handle_close
#define uv__handle_close(handle)
Definition: handle-inl.h:76
CHECK
@ CHECK
Definition: inflate.h:47
assert
assert(limit<=UINT32_MAX/2)
uv_handle_s
Definition: uv.h:444
uv_loop_s
Definition: uv.h:1780
loop
uv_loop_t * loop
Definition: main.c:7
UV_HANDLE_CLOSING
@ UV_HANDLE_CLOSING
Definition: uv-common.h:74
UV_HANDLE_CLOSED
@ UV_HANDLE_CLOSED
Definition: uv-common.h:75
uv_loop_watcher_endgame
void uv_loop_watcher_endgame(uv_loop_t *loop, uv_handle_t *handle)
Definition: loop-watcher.c:29
UV_LOOP_WATCHER_DEFINE
#define UV_LOOP_WATCHER_DEFINE(name, NAME)
Definition: loop-watcher.c:38