uv: update to v0.10.15
This commit is contained in:
Родитель
3f1dba18b2
Коммит
5508236c49
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@ -1,4 +1,18 @@
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2013.08.22, Version 0.10.14 (Stable)
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2013.08.24, Version 0.10.15 (Stable)
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Changes since version 0.10.14:
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* fsevents: create FSEvents thread on demand (Ben Noordhuis)
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* fsevents: use a single thread for interacting with FSEvents, because it's not
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thread-safe. (Fedor Indutny)
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* fsevents: share FSEventStream between multiple FS watchers, which removes a
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limit on the maximum number of file watchers that can be created on OS X.
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(Fedor Indutny)
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2013.08.22, Version 0.10.14 (Stable), 15d64132151c18b26346afa892444b95e2addad0
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Changes since version 0.10.13:
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@ -36,8 +36,8 @@
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#define UV_PLATFORM_LOOP_FIELDS \
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uv_thread_t cf_thread; \
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void* cf_cb; \
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void* cf_loop; \
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void* _cf_reserved; \
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void* cf_state; \
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uv_mutex_t cf_mutex; \
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uv_sem_t cf_sem; \
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ngx_queue_t cf_signals; \
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@ -47,10 +47,10 @@
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char* realpath; \
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int realpath_len; \
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int cf_flags; \
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void* cf_eventstream; \
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void* cf_event; \
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uv_async_t* cf_cb; \
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ngx_queue_t cf_events; \
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uv_sem_t cf_sem; \
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ngx_queue_t cf_member; \
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uv_sem_t _cf_reserved; \
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uv_mutex_t cf_mutex; \
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#define UV_STREAM_PRIVATE_PLATFORM_FIELDS \
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@ -28,8 +28,6 @@
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#include <ifaddrs.h>
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#include <net/if.h>
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#include <CoreFoundation/CFRunLoop.h>
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#include <mach/mach.h>
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#include <mach/mach_time.h>
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#include <mach-o/dyld.h> /* _NSGetExecutablePath */
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@ -37,144 +35,19 @@
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#include <sys/sysctl.h>
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#include <unistd.h> /* sysconf */
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/* Forward declarations */
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static void uv__cf_loop_runner(void* arg);
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static void uv__cf_loop_cb(void* arg);
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typedef struct uv__cf_loop_signal_s uv__cf_loop_signal_t;
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struct uv__cf_loop_signal_s {
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void* arg;
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cf_loop_signal_cb cb;
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ngx_queue_t member;
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};
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int uv__platform_loop_init(uv_loop_t* loop, int default_loop) {
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CFRunLoopSourceContext ctx;
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int r;
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loop->cf_state = NULL;
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if (uv__kqueue_init(loop))
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return -1;
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loop->cf_loop = NULL;
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if ((r = uv_mutex_init(&loop->cf_mutex)))
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return r;
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if ((r = uv_sem_init(&loop->cf_sem, 0)))
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return r;
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ngx_queue_init(&loop->cf_signals);
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memset(&ctx, 0, sizeof(ctx));
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ctx.info = loop;
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ctx.perform = uv__cf_loop_cb;
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loop->cf_cb = CFRunLoopSourceCreate(NULL, 0, &ctx);
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if ((r = uv_thread_create(&loop->cf_thread, uv__cf_loop_runner, loop)))
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return r;
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/* Synchronize threads */
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uv_sem_wait(&loop->cf_sem);
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assert(ACCESS_ONCE(CFRunLoopRef, loop->cf_loop) != NULL);
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return 0;
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}
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void uv__platform_loop_delete(uv_loop_t* loop) {
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ngx_queue_t* item;
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uv__cf_loop_signal_t* s;
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assert(loop->cf_loop != NULL);
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uv__cf_loop_signal(loop, NULL, NULL);
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uv_thread_join(&loop->cf_thread);
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uv_sem_destroy(&loop->cf_sem);
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uv_mutex_destroy(&loop->cf_mutex);
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/* Free any remaining data */
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while (!ngx_queue_empty(&loop->cf_signals)) {
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item = ngx_queue_head(&loop->cf_signals);
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s = ngx_queue_data(item, uv__cf_loop_signal_t, member);
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ngx_queue_remove(item);
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free(s);
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}
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}
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static void uv__cf_loop_runner(void* arg) {
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uv_loop_t* loop;
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loop = arg;
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/* Get thread's loop */
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ACCESS_ONCE(CFRunLoopRef, loop->cf_loop) = CFRunLoopGetCurrent();
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CFRunLoopAddSource(loop->cf_loop,
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loop->cf_cb,
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kCFRunLoopDefaultMode);
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uv_sem_post(&loop->cf_sem);
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CFRunLoopRun();
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CFRunLoopRemoveSource(loop->cf_loop,
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loop->cf_cb,
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kCFRunLoopDefaultMode);
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}
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static void uv__cf_loop_cb(void* arg) {
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uv_loop_t* loop;
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ngx_queue_t* item;
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ngx_queue_t split_head;
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uv__cf_loop_signal_t* s;
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loop = arg;
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uv_mutex_lock(&loop->cf_mutex);
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ngx_queue_init(&split_head);
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if (!ngx_queue_empty(&loop->cf_signals)) {
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ngx_queue_t* split_pos = ngx_queue_next(&loop->cf_signals);
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ngx_queue_split(&loop->cf_signals, split_pos, &split_head);
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}
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uv_mutex_unlock(&loop->cf_mutex);
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while (!ngx_queue_empty(&split_head)) {
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item = ngx_queue_head(&split_head);
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s = ngx_queue_data(item, uv__cf_loop_signal_t, member);
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/* This was a termination signal */
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if (s->cb == NULL)
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CFRunLoopStop(loop->cf_loop);
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else
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s->cb(s->arg);
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ngx_queue_remove(item);
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free(s);
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}
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}
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void uv__cf_loop_signal(uv_loop_t* loop, cf_loop_signal_cb cb, void* arg) {
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uv__cf_loop_signal_t* item;
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item = malloc(sizeof(*item));
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/* XXX: Fail */
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if (item == NULL)
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abort();
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item->arg = arg;
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item->cb = cb;
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uv_mutex_lock(&loop->cf_mutex);
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ngx_queue_insert_tail(&loop->cf_signals, &item->member);
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uv_mutex_unlock(&loop->cf_mutex);
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assert(loop->cf_loop != NULL);
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CFRunLoopSourceSignal(loop->cf_cb);
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CFRunLoopWakeUp(loop->cf_loop);
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uv__fsevents_loop_delete(loop);
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}
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@ -34,112 +34,144 @@ int uv__fsevents_close(uv_fs_event_t* handle) {
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return 0;
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}
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void uv__fsevents_loop_delete(uv_loop_t* loop) {
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return 0;
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}
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#else /* TARGET_OS_IPHONE */
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#include <assert.h>
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#include <stdlib.h>
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#include <CoreFoundation/CFRunLoop.h>
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#include <CoreServices/CoreServices.h>
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typedef struct uv__fsevents_event_s uv__fsevents_event_t;
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typedef struct uv__cf_loop_signal_s uv__cf_loop_signal_t;
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typedef struct uv__cf_loop_state_s uv__cf_loop_state_t;
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struct uv__cf_loop_state_s {
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CFRunLoopRef loop;
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CFRunLoopSourceRef signal_source;
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volatile int fsevent_need_reschedule;
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FSEventStreamRef fsevent_stream;
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uv_sem_t fsevent_sem;
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uv_mutex_t fsevent_mutex;
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ngx_queue_t fsevent_handles;
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int fsevent_handle_count;
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};
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struct uv__cf_loop_signal_s {
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ngx_queue_t member;
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uv_fs_event_t* handle;
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};
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struct uv__fsevents_event_s {
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int events;
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ngx_queue_t member;
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void* next;
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char path[1];
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};
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static const int kFSEventsModified = kFSEventStreamEventFlagItemFinderInfoMod |
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kFSEventStreamEventFlagItemModified |
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kFSEventStreamEventFlagItemInodeMetaMod |
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kFSEventStreamEventFlagItemChangeOwner |
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kFSEventStreamEventFlagItemXattrMod;
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static const int kFSEventsRenamed = kFSEventStreamEventFlagItemCreated |
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kFSEventStreamEventFlagItemRemoved |
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kFSEventStreamEventFlagItemRenamed;
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static const int kFSEventsSystem = kFSEventStreamEventFlagUserDropped |
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kFSEventStreamEventFlagKernelDropped |
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kFSEventStreamEventFlagEventIdsWrapped |
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kFSEventStreamEventFlagHistoryDone |
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kFSEventStreamEventFlagMount |
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kFSEventStreamEventFlagUnmount |
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kFSEventStreamEventFlagRootChanged;
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#define UV__FSEVENTS_WALK(handle, block) \
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{ \
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ngx_queue_t* curr; \
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ngx_queue_t split_head; \
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/* Forward declarations */
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static void uv__cf_loop_cb(void* arg);
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static void* uv__cf_loop_runner(void* arg);
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static int uv__cf_loop_signal(uv_loop_t* loop, uv_fs_event_t* handle);
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#define UV__FSEVENTS_PROCESS(handle, block) \
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do { \
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uv__fsevents_event_t* event; \
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uv__fsevents_event_t* next; \
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uv_mutex_lock(&(handle)->cf_mutex); \
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ngx_queue_init(&split_head); \
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if (!ngx_queue_empty(&(handle)->cf_events)) { \
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ngx_queue_t* split_pos = ngx_queue_next(&(handle)->cf_events); \
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ngx_queue_split(&(handle)->cf_events, split_pos, &split_head); \
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} \
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event = (handle)->cf_event; \
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(handle)->cf_event = NULL; \
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uv_mutex_unlock(&(handle)->cf_mutex); \
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while (!ngx_queue_empty(&split_head)) { \
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curr = ngx_queue_head(&split_head); \
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while (event != NULL) { \
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/* Invoke callback */ \
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event = ngx_queue_data(curr, uv__fsevents_event_t, member); \
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ngx_queue_remove(curr); \
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/* Invoke block code, but only if handle wasn't closed */ \
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if (((handle)->flags & (UV_CLOSING | UV_CLOSED)) == 0) \
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if (!uv__is_closing((handle))) \
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block \
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/* Free allocated data */ \
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next = event->next; \
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free(event); \
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event = next; \
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} \
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}
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} while (0)
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void uv__fsevents_cb(uv_async_t* cb, int status) {
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/* Runs in UV loop's thread, when there're events to report to handle */
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static void uv__fsevents_cb(uv_async_t* cb, int status) {
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uv_fs_event_t* handle;
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handle = cb->data;
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UV__FSEVENTS_WALK(handle, {
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UV__FSEVENTS_PROCESS(handle, {
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if (handle->event_watcher.fd != -1)
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handle->cb(handle, event->path[0] ? event->path : NULL, event->events, 0);
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});
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if ((handle->flags & (UV_CLOSING | UV_CLOSED)) == 0 &&
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handle->event_watcher.fd == -1) {
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if (!uv__is_closing(handle) && handle->event_watcher.fd == -1)
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uv__fsevents_close(handle);
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}
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}
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void uv__fsevents_event_cb(ConstFSEventStreamRef streamRef,
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void* info,
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size_t numEvents,
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void* eventPaths,
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const FSEventStreamEventFlags eventFlags[],
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const FSEventStreamEventId eventIds[]) {
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/* Runs in CF thread, when there're events in FSEventStream */
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static void uv__fsevents_event_cb(ConstFSEventStreamRef streamRef,
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void* info,
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size_t numEvents,
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void* eventPaths,
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const FSEventStreamEventFlags eventFlags[],
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const FSEventStreamEventId eventIds[]) {
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size_t i;
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int len;
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char** paths;
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char* path;
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char* pos;
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uv_fs_event_t* handle;
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ngx_queue_t* q;
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uv_loop_t* loop;
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uv__cf_loop_state_t* state;
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uv__fsevents_event_t* event;
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ngx_queue_t add_list;
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int kFSEventsModified;
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int kFSEventsRenamed;
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uv__fsevents_event_t* tail;
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kFSEventsModified = kFSEventStreamEventFlagItemFinderInfoMod |
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kFSEventStreamEventFlagItemModified |
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kFSEventStreamEventFlagItemInodeMetaMod |
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kFSEventStreamEventFlagItemChangeOwner |
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kFSEventStreamEventFlagItemXattrMod;
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kFSEventsRenamed = kFSEventStreamEventFlagItemCreated |
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kFSEventStreamEventFlagItemRemoved |
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kFSEventStreamEventFlagItemRenamed;
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handle = info;
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loop = info;
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state = loop->cf_state;
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assert(state != NULL);
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paths = eventPaths;
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ngx_queue_init(&add_list);
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for (i = 0; i < numEvents; i++) {
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/* Ignore system events */
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if (eventFlags[i] & (kFSEventStreamEventFlagUserDropped |
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kFSEventStreamEventFlagKernelDropped |
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kFSEventStreamEventFlagEventIdsWrapped |
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kFSEventStreamEventFlagHistoryDone |
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kFSEventStreamEventFlagMount |
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kFSEventStreamEventFlagUnmount |
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kFSEventStreamEventFlagRootChanged)) {
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continue;
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}
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/* For each handle */
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ngx_queue_foreach(q, &state->fsevent_handles) {
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handle = ngx_queue_data(q, uv_fs_event_t, cf_member);
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tail = NULL;
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/* TODO: Report errors */
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path = paths[i];
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len = strlen(path);
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/* Process and filter out events */
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for (i = 0; i < numEvents; i++) {
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/* Ignore system events */
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if (eventFlags[i] & kFSEventsSystem)
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continue;
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path = paths[i];
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len = strlen(path);
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/* Filter out paths that are outside handle's request */
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if (strncmp(path, handle->realpath, handle->realpath_len) != 0)
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continue;
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/* Remove absolute path prefix */
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if (strstr(path, handle->realpath) == path) {
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path += handle->realpath_len;
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len -= handle->realpath_len;
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@ -148,91 +180,81 @@ void uv__fsevents_event_cb(ConstFSEventStreamRef streamRef,
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path++;
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len--;
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}
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}
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#ifdef MAC_OS_X_VERSION_10_7
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/* Ignore events with path equal to directory itself */
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if (len == 0)
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continue;
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/* Ignore events with path equal to directory itself */
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if (len == 0)
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continue;
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#endif /* MAC_OS_X_VERSION_10_7 */
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/* Do not emit events from subdirectories (without option set) */
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pos = strchr(path, '/');
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if ((handle->cf_flags & UV_FS_EVENT_RECURSIVE) == 0 &&
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pos != NULL &&
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pos != path + 1)
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continue;
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/* Do not emit events from subdirectories (without option set) */
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if ((handle->cf_flags & UV_FS_EVENT_RECURSIVE) == 0) {
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pos = strchr(path, '/');
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if (pos != NULL && pos != path + 1)
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continue;
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}
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#ifndef MAC_OS_X_VERSION_10_7
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path = "";
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len = 0;
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path = "";
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len = 0;
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#endif /* MAC_OS_X_VERSION_10_7 */
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event = malloc(sizeof(*event) + len);
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if (event == NULL)
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break;
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event = malloc(sizeof(*event) + len);
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if (event == NULL)
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break;
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memcpy(event->path, path, len + 1);
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memset(event, 0, sizeof(*event));
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memcpy(event->path, path, len + 1);
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if ((eventFlags[i] & kFSEventsModified) != 0 &&
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(eventFlags[i] & kFSEventsRenamed) == 0)
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event->events = UV_CHANGE;
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else
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event->events = UV_RENAME;
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if ((eventFlags[i] & kFSEventsModified) != 0 &&
|
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(eventFlags[i] & kFSEventsRenamed) == 0)
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event->events = UV_CHANGE;
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else
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event->events = UV_RENAME;
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||||
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ngx_queue_insert_tail(&add_list, &event->member);
|
||||
if (tail != NULL)
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tail->next = event;
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tail = event;
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}
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||||
|
||||
if (tail != NULL) {
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uv_mutex_lock(&handle->cf_mutex);
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tail->next = handle->cf_event;
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handle->cf_event = tail;
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uv_mutex_unlock(&handle->cf_mutex);
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||||
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uv_async_send(handle->cf_cb);
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||||
}
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||||
}
|
||||
uv_mutex_lock(&handle->cf_mutex);
|
||||
ngx_queue_add(&handle->cf_events, &add_list);
|
||||
uv_mutex_unlock(&handle->cf_mutex);
|
||||
|
||||
uv_async_send(handle->cf_cb);
|
||||
}
|
||||
|
||||
|
||||
void uv__fsevents_schedule(void* arg) {
|
||||
uv_fs_event_t* handle;
|
||||
|
||||
handle = arg;
|
||||
FSEventStreamScheduleWithRunLoop(handle->cf_eventstream,
|
||||
handle->loop->cf_loop,
|
||||
kCFRunLoopDefaultMode);
|
||||
FSEventStreamStart(handle->cf_eventstream);
|
||||
uv_sem_post(&handle->cf_sem);
|
||||
}
|
||||
|
||||
|
||||
int uv__fsevents_init(uv_fs_event_t* handle) {
|
||||
/* Runs in CF thread */
|
||||
static void uv__fsevents_create_stream(uv_loop_t* loop, CFArrayRef paths) {
|
||||
uv__cf_loop_state_t* state;
|
||||
FSEventStreamContext ctx;
|
||||
FSEventStreamRef ref;
|
||||
CFStringRef path;
|
||||
CFArrayRef paths;
|
||||
CFAbsoluteTime latency;
|
||||
FSEventStreamCreateFlags flags;
|
||||
|
||||
/* Initialize context */
|
||||
ctx.version = 0;
|
||||
ctx.info = handle;
|
||||
ctx.info = loop;
|
||||
ctx.retain = NULL;
|
||||
ctx.release = NULL;
|
||||
ctx.copyDescription = NULL;
|
||||
|
||||
/* Get absolute path to file */
|
||||
handle->realpath = realpath(handle->filename, NULL);
|
||||
if (handle->realpath != NULL)
|
||||
handle->realpath_len = strlen(handle->realpath);
|
||||
|
||||
/* Initialize paths array */
|
||||
path = CFStringCreateWithCString(NULL,
|
||||
handle->filename,
|
||||
CFStringGetSystemEncoding());
|
||||
paths = CFArrayCreate(NULL, (const void**)&path, 1, NULL);
|
||||
|
||||
latency = 0.15;
|
||||
|
||||
/* Set appropriate flags */
|
||||
flags = kFSEventStreamCreateFlagFileEvents;
|
||||
|
||||
/*
|
||||
* NOTE: It might sound like a good idea to remember last seen StreamEventId,
|
||||
* but in reality one dir might have last StreamEventId less than, the other,
|
||||
* that is being watched now. Which will cause FSEventStream API to report
|
||||
* changes to files from the past.
|
||||
*/
|
||||
ref = FSEventStreamCreate(NULL,
|
||||
&uv__fsevents_event_cb,
|
||||
&ctx,
|
||||
|
@ -240,55 +262,419 @@ int uv__fsevents_init(uv_fs_event_t* handle) {
|
|||
kFSEventStreamEventIdSinceNow,
|
||||
latency,
|
||||
flags);
|
||||
handle->cf_eventstream = ref;
|
||||
assert(ref != NULL);
|
||||
|
||||
state = loop->cf_state;
|
||||
FSEventStreamScheduleWithRunLoop(ref,
|
||||
state->loop,
|
||||
kCFRunLoopDefaultMode);
|
||||
if (!FSEventStreamStart(ref))
|
||||
abort();
|
||||
|
||||
state->fsevent_stream = ref;
|
||||
}
|
||||
|
||||
|
||||
/* Runs in CF thread */
|
||||
static void uv__fsevents_destroy_stream(uv_loop_t* loop) {
|
||||
uv__cf_loop_state_t* state;
|
||||
|
||||
state = loop->cf_state;
|
||||
|
||||
if (state->fsevent_stream == NULL)
|
||||
return;
|
||||
|
||||
/* Flush all accumulated events */
|
||||
FSEventStreamFlushSync(state->fsevent_stream);
|
||||
|
||||
/* Stop emitting events */
|
||||
FSEventStreamStop(state->fsevent_stream);
|
||||
|
||||
/* Release stream */
|
||||
FSEventStreamInvalidate(state->fsevent_stream);
|
||||
FSEventStreamRelease(state->fsevent_stream);
|
||||
state->fsevent_stream = NULL;
|
||||
}
|
||||
|
||||
|
||||
/* Runs in CF thread, when there're new fsevent handles to add to stream */
|
||||
static void uv__fsevents_reschedule(uv_fs_event_t* handle) {
|
||||
uv__cf_loop_state_t* state;
|
||||
ngx_queue_t* q;
|
||||
uv_fs_event_t* curr;
|
||||
CFArrayRef cf_paths;
|
||||
CFStringRef* paths;
|
||||
int i;
|
||||
int path_count;
|
||||
|
||||
state = handle->loop->cf_state;
|
||||
|
||||
/* Optimization to prevent O(n^2) time spent when starting to watch
|
||||
* many files simultaneously
|
||||
*/
|
||||
if (!state->fsevent_need_reschedule)
|
||||
return;
|
||||
state->fsevent_need_reschedule = 0;
|
||||
|
||||
/* Destroy previous FSEventStream */
|
||||
uv__fsevents_destroy_stream(handle->loop);
|
||||
|
||||
/* Create list of all watched paths */
|
||||
uv_mutex_lock(&state->fsevent_mutex);
|
||||
path_count = state->fsevent_handle_count;
|
||||
if (path_count != 0) {
|
||||
paths = malloc(sizeof(*paths) * path_count);
|
||||
if (paths == NULL)
|
||||
abort();
|
||||
|
||||
q = &state->fsevent_handles;
|
||||
for (i = 0; i < path_count; i++) {
|
||||
q = ngx_queue_next(q);
|
||||
assert(q != &state->fsevent_handles);
|
||||
curr = ngx_queue_data(q, uv_fs_event_t, cf_member);
|
||||
|
||||
assert(curr->realpath != NULL);
|
||||
paths[i] = CFStringCreateWithCString(NULL,
|
||||
curr->realpath,
|
||||
CFStringGetSystemEncoding());
|
||||
if (paths[i] == NULL)
|
||||
abort();
|
||||
}
|
||||
}
|
||||
uv_mutex_unlock(&state->fsevent_mutex);
|
||||
|
||||
if (path_count != 0) {
|
||||
/* Create new FSEventStream */
|
||||
cf_paths = CFArrayCreate(NULL, (const void**) paths, path_count, NULL);
|
||||
if (cf_paths == NULL)
|
||||
abort();
|
||||
uv__fsevents_create_stream(handle->loop, cf_paths);
|
||||
}
|
||||
|
||||
/*
|
||||
* Main thread will block until the removal of handle from the list,
|
||||
* we must tell it when we're ready.
|
||||
*
|
||||
* NOTE: This is coupled with `uv_sem_wait()` in `uv__fsevents_close`
|
||||
*/
|
||||
if (uv__is_closing(handle))
|
||||
uv_sem_post(&state->fsevent_sem);
|
||||
}
|
||||
|
||||
|
||||
/* Runs in UV loop */
|
||||
static int uv__fsevents_loop_init(uv_loop_t* loop) {
|
||||
CFRunLoopSourceContext ctx;
|
||||
uv__cf_loop_state_t* state;
|
||||
pthread_attr_t attr_storage;
|
||||
pthread_attr_t* attr;
|
||||
int err;
|
||||
|
||||
if (loop->cf_state != NULL)
|
||||
return 0;
|
||||
|
||||
state = calloc(1, sizeof(*state));
|
||||
if (state == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
err = uv_mutex_init(&loop->cf_mutex);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
err = uv_sem_init(&loop->cf_sem, 0);
|
||||
if (err)
|
||||
goto fail_sem_init;
|
||||
|
||||
ngx_queue_init(&loop->cf_signals);
|
||||
|
||||
err = uv_sem_init(&state->fsevent_sem, 0);
|
||||
if (err)
|
||||
goto fail_fsevent_sem_init;
|
||||
|
||||
err = uv_mutex_init(&state->fsevent_mutex);
|
||||
if (err)
|
||||
goto fail_fsevent_mutex_init;
|
||||
|
||||
ngx_queue_init(&state->fsevent_handles);
|
||||
state->fsevent_need_reschedule = 0;
|
||||
state->fsevent_handle_count = 0;
|
||||
|
||||
memset(&ctx, 0, sizeof(ctx));
|
||||
ctx.info = loop;
|
||||
ctx.perform = uv__cf_loop_cb;
|
||||
state->signal_source = CFRunLoopSourceCreate(NULL, 0, &ctx);
|
||||
if (state->signal_source == NULL) {
|
||||
err = -ENOMEM;
|
||||
goto fail_signal_source_create;
|
||||
}
|
||||
|
||||
/* In the unlikely event that pthread_attr_init() fails, create the thread
|
||||
* with the default stack size. We'll use a little more address space but
|
||||
* that in itself is not a fatal error.
|
||||
*/
|
||||
attr = &attr_storage;
|
||||
if (pthread_attr_init(attr))
|
||||
attr = NULL;
|
||||
|
||||
if (attr != NULL)
|
||||
if (pthread_attr_setstacksize(attr, 3 * PTHREAD_STACK_MIN))
|
||||
abort();
|
||||
|
||||
loop->cf_state = state;
|
||||
|
||||
/* uv_thread_t is an alias for pthread_t. */
|
||||
err = -pthread_create(&loop->cf_thread, attr, uv__cf_loop_runner, loop);
|
||||
|
||||
if (attr != NULL)
|
||||
pthread_attr_destroy(attr);
|
||||
|
||||
if (err)
|
||||
goto fail_thread_create;
|
||||
|
||||
/* Synchronize threads */
|
||||
uv_sem_wait(&loop->cf_sem);
|
||||
return 0;
|
||||
|
||||
fail_thread_create:
|
||||
loop->cf_state = NULL;
|
||||
|
||||
fail_signal_source_create:
|
||||
uv_mutex_destroy(&state->fsevent_mutex);
|
||||
|
||||
fail_fsevent_mutex_init:
|
||||
uv_sem_destroy(&state->fsevent_sem);
|
||||
|
||||
fail_fsevent_sem_init:
|
||||
uv_sem_destroy(&loop->cf_sem);
|
||||
|
||||
fail_sem_init:
|
||||
uv_mutex_destroy(&loop->cf_mutex);
|
||||
free(state);
|
||||
return err;
|
||||
}
|
||||
|
||||
|
||||
/* Runs in UV loop */
|
||||
void uv__fsevents_loop_delete(uv_loop_t* loop) {
|
||||
uv__cf_loop_signal_t* s;
|
||||
uv__cf_loop_state_t* state;
|
||||
ngx_queue_t* q;
|
||||
|
||||
if (loop->cf_state == NULL)
|
||||
return;
|
||||
|
||||
if (uv__cf_loop_signal(loop, NULL) != 0)
|
||||
abort();
|
||||
|
||||
uv_thread_join(&loop->cf_thread);
|
||||
uv_sem_destroy(&loop->cf_sem);
|
||||
uv_mutex_destroy(&loop->cf_mutex);
|
||||
|
||||
/* Free any remaining data */
|
||||
while (!ngx_queue_empty(&loop->cf_signals)) {
|
||||
q = ngx_queue_head(&loop->cf_signals);
|
||||
s = ngx_queue_data(q, uv__cf_loop_signal_t, member);
|
||||
ngx_queue_remove(q);
|
||||
free(s);
|
||||
}
|
||||
|
||||
/* Destroy state */
|
||||
state = loop->cf_state;
|
||||
uv_sem_destroy(&state->fsevent_sem);
|
||||
uv_mutex_destroy(&state->fsevent_mutex);
|
||||
CFRelease(state->signal_source);
|
||||
free(state);
|
||||
loop->cf_state = NULL;
|
||||
}
|
||||
|
||||
|
||||
/* Runs in CF thread. This is the CF loop's body */
|
||||
static void* uv__cf_loop_runner(void* arg) {
|
||||
uv_loop_t* loop;
|
||||
uv__cf_loop_state_t* state;
|
||||
|
||||
loop = arg;
|
||||
state = loop->cf_state;
|
||||
state->loop = CFRunLoopGetCurrent();
|
||||
|
||||
CFRunLoopAddSource(state->loop,
|
||||
state->signal_source,
|
||||
kCFRunLoopDefaultMode);
|
||||
|
||||
uv_sem_post(&loop->cf_sem);
|
||||
|
||||
CFRunLoopRun();
|
||||
CFRunLoopRemoveSource(state->loop,
|
||||
state->signal_source,
|
||||
kCFRunLoopDefaultMode);
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
/* Runs in CF thread, executed after `uv__cf_loop_signal()` */
|
||||
static void uv__cf_loop_cb(void* arg) {
|
||||
uv_loop_t* loop;
|
||||
uv__cf_loop_state_t* state;
|
||||
ngx_queue_t* item;
|
||||
ngx_queue_t split_head;
|
||||
uv__cf_loop_signal_t* s;
|
||||
|
||||
loop = arg;
|
||||
state = loop->cf_state;
|
||||
ngx_queue_init(&split_head);
|
||||
|
||||
uv_mutex_lock(&loop->cf_mutex);
|
||||
if (!ngx_queue_empty(&loop->cf_signals)) {
|
||||
ngx_queue_t* split_pos = ngx_queue_head(&loop->cf_signals);
|
||||
ngx_queue_split(&loop->cf_signals, split_pos, &split_head);
|
||||
}
|
||||
uv_mutex_unlock(&loop->cf_mutex);
|
||||
|
||||
while (!ngx_queue_empty(&split_head)) {
|
||||
item = ngx_queue_head(&split_head);
|
||||
|
||||
s = ngx_queue_data(item, uv__cf_loop_signal_t, member);
|
||||
|
||||
/* This was a termination signal */
|
||||
if (s->handle == NULL)
|
||||
CFRunLoopStop(state->loop);
|
||||
else
|
||||
uv__fsevents_reschedule(s->handle);
|
||||
|
||||
ngx_queue_remove(item);
|
||||
free(s);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* Runs in UV loop to notify CF thread */
|
||||
int uv__cf_loop_signal(uv_loop_t* loop, uv_fs_event_t* handle) {
|
||||
uv__cf_loop_signal_t* item;
|
||||
uv__cf_loop_state_t* state;
|
||||
|
||||
item = malloc(sizeof(*item));
|
||||
if (item == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
item->handle = handle;
|
||||
|
||||
uv_mutex_lock(&loop->cf_mutex);
|
||||
ngx_queue_insert_tail(&loop->cf_signals, &item->member);
|
||||
uv_mutex_unlock(&loop->cf_mutex);
|
||||
|
||||
state = loop->cf_state;
|
||||
assert(state != NULL);
|
||||
CFRunLoopSourceSignal(state->signal_source);
|
||||
CFRunLoopWakeUp(state->loop);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/* Runs in UV loop to initialize handle */
|
||||
int uv__fsevents_init(uv_fs_event_t* handle) {
|
||||
int err;
|
||||
uv__cf_loop_state_t* state;
|
||||
|
||||
err = uv__fsevents_loop_init(handle->loop);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
/* Get absolute path to file */
|
||||
handle->realpath = realpath(handle->filename, NULL);
|
||||
if (handle->realpath == NULL)
|
||||
return -errno;
|
||||
handle->realpath_len = strlen(handle->realpath);
|
||||
|
||||
/* Initialize singly-linked list */
|
||||
handle->cf_event = NULL;
|
||||
|
||||
/*
|
||||
* Events will occur in other thread.
|
||||
* Initialize callback for getting them back into event loop's thread
|
||||
*/
|
||||
handle->cf_cb = malloc(sizeof(*handle->cf_cb));
|
||||
if (handle->cf_cb == NULL)
|
||||
return uv__set_sys_error(handle->loop, ENOMEM);
|
||||
if (handle->cf_cb == NULL) {
|
||||
err = uv__set_sys_error(handle->loop, ENOMEM);
|
||||
goto fail_cf_cb_malloc;
|
||||
}
|
||||
|
||||
handle->cf_cb->data = handle;
|
||||
uv_async_init(handle->loop, handle->cf_cb, uv__fsevents_cb);
|
||||
handle->cf_cb->flags |= UV__HANDLE_INTERNAL;
|
||||
uv_unref((uv_handle_t*) handle->cf_cb);
|
||||
|
||||
uv_mutex_init(&handle->cf_mutex);
|
||||
uv_sem_init(&handle->cf_sem, 0);
|
||||
ngx_queue_init(&handle->cf_events);
|
||||
err = uv_mutex_init(&handle->cf_mutex);
|
||||
if (err)
|
||||
goto fail_cf_mutex_init;
|
||||
|
||||
uv__cf_loop_signal(handle->loop, uv__fsevents_schedule, handle);
|
||||
/* Insert handle into the list */
|
||||
state = handle->loop->cf_state;
|
||||
uv_mutex_lock(&state->fsevent_mutex);
|
||||
ngx_queue_insert_tail(&state->fsevent_handles, &handle->cf_member);
|
||||
state->fsevent_handle_count++;
|
||||
state->fsevent_need_reschedule = 1;
|
||||
uv_mutex_unlock(&state->fsevent_mutex);
|
||||
|
||||
/* Reschedule FSEventStream */
|
||||
assert(handle != NULL);
|
||||
err = uv__cf_loop_signal(handle->loop, handle);
|
||||
if (err)
|
||||
goto fail_loop_signal;
|
||||
|
||||
return 0;
|
||||
|
||||
fail_loop_signal:
|
||||
uv_mutex_destroy(&handle->cf_mutex);
|
||||
|
||||
fail_cf_mutex_init:
|
||||
free(handle->cf_cb);
|
||||
handle->cf_cb = NULL;
|
||||
|
||||
fail_cf_cb_malloc:
|
||||
free(handle->realpath);
|
||||
handle->realpath = NULL;
|
||||
handle->realpath_len = 0;
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
|
||||
/* Runs in UV loop to de-initialize handle */
|
||||
int uv__fsevents_close(uv_fs_event_t* handle) {
|
||||
if (handle->cf_eventstream == NULL)
|
||||
return -1;
|
||||
int err;
|
||||
uv__cf_loop_state_t* state;
|
||||
|
||||
/* Ensure that event stream was scheduled */
|
||||
uv_sem_wait(&handle->cf_sem);
|
||||
if (handle->cf_cb == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
/* Stop emitting events */
|
||||
FSEventStreamStop(handle->cf_eventstream);
|
||||
/* Remove handle from the list */
|
||||
state = handle->loop->cf_state;
|
||||
uv_mutex_lock(&state->fsevent_mutex);
|
||||
ngx_queue_remove(&handle->cf_member);
|
||||
state->fsevent_handle_count--;
|
||||
state->fsevent_need_reschedule = 1;
|
||||
uv_mutex_unlock(&state->fsevent_mutex);
|
||||
|
||||
/* Release stream */
|
||||
FSEventStreamInvalidate(handle->cf_eventstream);
|
||||
FSEventStreamRelease(handle->cf_eventstream);
|
||||
handle->cf_eventstream = NULL;
|
||||
/* Reschedule FSEventStream */
|
||||
assert(handle != NULL);
|
||||
err = uv__cf_loop_signal(handle->loop, handle);
|
||||
if (err)
|
||||
return -err;
|
||||
|
||||
/* Wait for deinitialization */
|
||||
uv_sem_wait(&state->fsevent_sem);
|
||||
|
||||
uv_close((uv_handle_t*) handle->cf_cb, (uv_close_cb) free);
|
||||
handle->cf_cb = NULL;
|
||||
|
||||
/* Free data in queue */
|
||||
UV__FSEVENTS_WALK(handle, {
|
||||
UV__FSEVENTS_PROCESS(handle, {
|
||||
/* NOP */
|
||||
})
|
||||
});
|
||||
|
||||
uv_mutex_destroy(&handle->cf_mutex);
|
||||
uv_sem_destroy(&handle->cf_sem);
|
||||
free(handle->realpath);
|
||||
handle->realpath = NULL;
|
||||
handle->realpath_len = 0;
|
||||
|
|
|
@ -216,12 +216,10 @@ int uv__make_socketpair(int fds[2], int flags);
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|||
int uv__make_pipe(int fds[2], int flags);
|
||||
|
||||
#if defined(__APPLE__)
|
||||
typedef void (*cf_loop_signal_cb)(void*);
|
||||
|
||||
void uv__cf_loop_signal(uv_loop_t* loop, cf_loop_signal_cb cb, void* arg);
|
||||
|
||||
int uv__fsevents_init(uv_fs_event_t* handle);
|
||||
int uv__fsevents_close(uv_fs_event_t* handle);
|
||||
void uv__fsevents_loop_delete(uv_loop_t* loop);
|
||||
|
||||
/* OSX < 10.7 has no file events, polyfill them */
|
||||
#ifndef MAC_OS_X_VERSION_10_7
|
||||
|
|
|
@ -307,7 +307,7 @@ int uv_fs_event_init(uv_loop_t* loop,
|
|||
|
||||
#if defined(__APPLE__)
|
||||
/* Nullify field to perform checks later */
|
||||
handle->cf_eventstream = NULL;
|
||||
handle->cf_cb = NULL;
|
||||
handle->realpath = NULL;
|
||||
handle->realpath_len = 0;
|
||||
handle->cf_flags = flags;
|
||||
|
|
|
@ -34,7 +34,7 @@
|
|||
|
||||
#define UV_VERSION_MAJOR 0
|
||||
#define UV_VERSION_MINOR 10
|
||||
#define UV_VERSION_PATCH 14
|
||||
#define UV_VERSION_PATCH 15
|
||||
#define UV_VERSION_IS_RELEASE 1
|
||||
|
||||
|
||||
|
|
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