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/* | |
File: CarbonCore/FSEvents.h | |
Contains: FSEventStream API | |
Copyright: © 2006-2011 by Apple Inc. All rights reserved. | |
Bugs?: For bug reports, consult the following page on | |
the World Wide Web: | |
http://developer.apple.com/bugreporter/ | |
*/ | |
#ifndef __FSEVENTS__ | |
#define __FSEVENTS__ | |
#ifndef __CFRUNLOOP__ | |
#include <CoreFoundation/CFRunLoop.h> | |
#endif | |
#ifndef __CFUUID__ | |
#include <CoreFoundation/CFUUID.h> | |
#endif | |
#include <Block.h> | |
#include <dispatch/dispatch.h> | |
#include <sys/types.h> | |
#include <Availability.h> | |
#if PRAGMA_ONCE | |
#pragma once | |
#endif | |
#ifdef __cplusplus | |
extern "C" { | |
#endif | |
#pragma pack(push, 2) | |
#if PRAGMA_ENUM_ALWAYSINT | |
#pragma enumsalwaysint on | |
#endif | |
/* | |
* | |
* | |
* Discussion: | |
* This header describes the FSEvents API. This API provides a | |
* mechanism to notify clients about directories they ought to | |
* re-scan in order to keep their internal data structures | |
* up-to-date with respect to the true state of the file system. | |
* (For example, when files or directories are created, modified, or | |
* removed.) It sends these notifications "in bulk", possibly | |
* notifying the client of changes to several directories in a | |
* single callback. By using the API, clients can notice such | |
* changes quickly, without needing to resort to recursive | |
* polling/scanning of the file system. | |
* | |
* Much like kqueues, the FSEvents API allows an application to find | |
* near-immediately when the contents of a particular directory has | |
* changed. However, unlike kqueues, the FSEvents API allows the | |
* application to monitor the whole file system hierarchy rooted at | |
* a specified directory (and still get precise per-directory | |
* notifications) -- to do this with the kqueues API would require | |
* the client to monitor each directory individually. | |
* | |
* Clients can register interest in a chunk of the filesystem | |
* hierarchy and will receive callbacks from their runloop whenever | |
* an event occurs that modifies the filesystem therein. The | |
* callback will indicate the exact directory in which the event | |
* occurred, so the client only has to scan that directory for | |
* updated info, not all its children. Clients can supply a | |
* "latency" parameter that tells how long to wait after an event | |
* occurs before forwarding it; this reduces the volume of events | |
* and reduces the chance that the client will see an "intermediate" | |
* state, like those that arise when doing a "safe save" of a file, | |
* creating a package, or downloading a file via Safari. | |
* | |
* | |
* | |
* The lifecycle of an FSEventStream consists of these stages: | |
* | |
* | |
* 1. FSEventStreamCreate() / FSEventStreamCreateRelativeToDevice() | |
* -> Creates an FSEventStream. | |
* | |
* 2. FSEventStreamScheduleWithRunLoop() -> Schedules an | |
* FSEventStream on a runloop, like CFRunLoopAddSource() does for a | |
* CFRunLoopSourceRef. | |
* | |
* 3. FSEventStreamStart() -> Starts receiving events and servicing | |
* them from the client's runloop(s) using the callback supplied by | |
* the client when the stream was created. If a value was supplied | |
* for the sinceWhen parameter then "historical" events will be sent | |
* via your callback first, then a HistoryDone event, then | |
* "contemporary" events will be sent on an ongoing basis (as though | |
* you had supplied kFSEventStreamEventIdSinceNow for sinceWhen). | |
* | |
* | |
* 4. FSEventStreamStop() -> Stops the stream, ensuring the | |
* client's callback will not be called again for this stream. | |
* After stopping the stream, it can be restarted seamlessly via | |
* FSEventStreamStart() without missing any events. | |
* | |
* 5. FSEventStreamInvalidate() -> Invalidates the stream, like | |
* CFRunLoopSourceInvalidate() does for a CFRunLoopSourcRef. | |
* | |
* | |
* 6. FSEventStreamRelease() -> Decrements the refcount on the | |
* stream (initially one and incremented via FSEventStreamRetain()). | |
* If the refcount reaches zero, the stream is deallocated. | |
* | |
* | |
* Once the event stream has been started, the following calls can | |
* be used: | |
* | |
* FSEventStreamGetLatestEventId() -> Initially, this returns the | |
* sinceWhen value supplied when the stream was created; thereafter, | |
* it is updated with the highest-numbered event ID mentioned in the | |
* current batch of events just before invoking the client's | |
* callback. Clients can store this value persistently as long as | |
* they also store the UUID for the device (obtained via | |
* FSEventsCopyUUIDForDevice()). Clients can then later supply this | |
* event ID as the sinceWhen parameter to | |
* FSEventStreamCreateRelativeToDevice(), as long as its UUID | |
* matches what you stored. This works because the FSEvents service | |
* stores events in a persistent, per-volume database. In this | |
* regard,the stream of event IDs acts like a global, system-wide | |
* clock, but bears no relation to any particular timebase. | |
* | |
* FSEventStreamFlushAsync() -> Requests that the fseventsd daemon | |
* send any events it has already buffered (via the latency | |
* parameter to one of the FSEventStreamCreate...() functions). This | |
* occurs asynchronously; clients will not have received all the | |
* callbacks by the time this call returns to them. | |
* | |
* FSEventStreamFlushSync() -> Requests that the fseventsd daemon | |
* send any events it has already buffered (via the latency | |
* parameter to one of the FSEventStreamCreate...() functions). Then | |
* runs the runloop in its private mode till all events that have | |
* occurred have been reported (via the clients callback). This | |
* occurs synchronously; clients will have received all the | |
* callbacks by the time this call returns to them. | |
* | |
* FSEventStreamGetDeviceBeingWatched() -> Gets the dev_t value | |
* supplied when the stream was created with | |
* FSEventStreamCreateRelativeToDevice(), otherwise 0. | |
* | |
* FSEventStreamCopyPathsBeingWatched() -> Gets the paths supplied | |
* when the stream was created with one of the | |
* FSEventStreamCreate...() functions. | |
* | |
* Calls that can be made without a stream: | |
* | |
* FSEventsCopyUUIDForDevice() -> Gets a UUID that uniquely | |
* identifies the FSEvents database for that volume. If the database | |
* gets discarded then its replacement will have a different UUID so | |
* that clients will be able to detect this situation and avoid | |
* trying to use event IDs that they stored as the sinceWhen | |
* parameter to the FSEventStreamCreate...() functions. | |
* | |
* FSEventsGetCurrentEventId() -> Gets the most recently generated | |
* event ID, system-wide (not just for one stream). | |
* | |
* FSEventsGetLastEventIdForDeviceBeforeTime() -> Gets the last | |
* event ID for the given device that was returned before the given | |
* time. This is conservative in the sense that if you then use the | |
* returned event ID as the sinceWhen parameter of | |
* FSEventStreamCreateRelativeToDevice() that you will not miss any | |
* events that happened since that time. On the other hand, you | |
* might receive some (harmless) extra events. | |
* | |
* FSEventsPurgeEventsForDeviceUpToEventId() -> Purges old events | |
* from the persistent per-volume database maintained by the | |
* service. You can combine this with | |
* FSEventsGetLastEventIdForDeviceBeforeTime(). Can only be called | |
* by the root user. | |
*/ | |
/* | |
* Types and Constants | |
*/ | |
/* | |
* FSEventStreamCreateFlags | |
* | |
* Discussion: | |
* Flags that can be passed to the FSEventStreamCreate...() | |
* functions to modify the behavior of the stream being created. | |
*/ | |
typedef UInt32 FSEventStreamCreateFlags; | |
/* | |
* FSEventStreamCreateFlags | |
* | |
* Discussion: | |
* Flags that can be passed to the FSEventStreamCreate...() | |
* functions to modify the behavior of the stream being created. | |
*/ | |
enum { | |
/* | |
* The default. | |
*/ | |
kFSEventStreamCreateFlagNone = 0x00000000, | |
/* | |
* The framework will invoke your callback function with CF types | |
* rather than raw C types (i.e., a CFArrayRef of CFStringRefs, | |
* rather than a raw C array of raw C string pointers). See | |
* FSEventStreamCallback. | |
*/ | |
kFSEventStreamCreateFlagUseCFTypes = 0x00000001, | |
/* | |
* Affects the meaning of the latency parameter. If you specify this | |
* flag and more than latency seconds have elapsed since the last | |
* event, your app will receive the event immediately. The delivery | |
* of the event resets the latency timer and any further events will | |
* be delivered after latency seconds have elapsed. This flag is | |
* useful for apps that are interactive and want to react immediately | |
* to changes but avoid getting swamped by notifications when changes | |
* are occurringin rapid succession. If you do not specify this flag, | |
* then when an event occurs after a period of no events, the latency | |
* timer is started. Any events that occur during the next latency | |
* seconds will be delivered as one group (including that first | |
* event). The delivery of the group of events resets the latency | |
* timer and any further events will be delivered after latency | |
* seconds. This is the default behavior and is more appropriate for | |
* background, daemon or batch processing apps. | |
*/ | |
kFSEventStreamCreateFlagNoDefer = 0x00000002, | |
/* | |
* Request notifications of changes along the path to the path(s) | |
* you're watching. For example, with this flag, if you watch | |
* "/foo/bar" and it is renamed to "/foo/bar.old", you would receive | |
* a RootChanged event. The same is true if the directory "/foo" were | |
* renamed. The event you receive is a special event: the path for | |
* the event is the original path you specified, the flag | |
* kFSEventStreamEventFlagRootChanged is set and event ID is zero. | |
* RootChanged events are useful to indicate that you should rescan a | |
* particular hierarchy because it changed completely (as opposed to | |
* the things inside of it changing). If you want to track the | |
* current location of a directory, it is best to open the directory | |
* before creating the stream so that you have a file descriptor for | |
* it and can issue an F_GETPATH fcntl() to find the current path. | |
*/ | |
kFSEventStreamCreateFlagWatchRoot = 0x00000004, | |
/* | |
* Don't send events that were triggered by the current process. This | |
* is useful for reducing the volume of events that are sent. It is | |
* only useful if your process might modify the file system hierarchy | |
* beneath the path(s) being monitored. Note: this has no effect on | |
* historical events, i.e., those delivered before the HistoryDone | |
* sentinel event. | |
*/ | |
kFSEventStreamCreateFlagIgnoreSelf = 0x00000008, | |
/* | |
* Request file-level notifications. Your stream will receive events | |
* about individual files in the hierarchy you're watching instead of | |
* only receiving directory level notifications. Use this flag with | |
* care as it will generate significantly more events than without it. | |
*/ | |
kFSEventStreamCreateFlagFileEvents = 0x00000010, | |
kFSEventStreamCreateFlagMarkSelf = 0x00000020 | |
}; | |
/* | |
* FSEventStreamEventFlags | |
* | |
* Discussion: | |
* Flags that can be passed your FSEventStreamCallback function. | |
*/ | |
typedef UInt32 FSEventStreamEventFlags; | |
/* | |
* FSEventStreamEventFlags | |
* | |
* Discussion: | |
* Flags that can be passed to your FSEventStreamCallback function. | |
*/ | |
enum { | |
/* | |
* There was some change in the directory at the specific path | |
* supplied in this event. | |
*/ | |
kFSEventStreamEventFlagNone = 0x00000000, | |
/* | |
* Your application must rescan not just the directory given in the | |
* event, but all its children, recursively. This can happen if there | |
* was a problem whereby events were coalesced hierarchically. For | |
* example, an event in /Users/jsmith/Music and an event in | |
* /Users/jsmith/Pictures might be coalesced into an event with this | |
* flag set and path=/Users/jsmith. If this flag is set you may be | |
* able to get an idea of whether the bottleneck happened in the | |
* kernel (less likely) or in your client (more likely) by checking | |
* for the presence of the informational flags | |
* kFSEventStreamEventFlagUserDropped or | |
* kFSEventStreamEventFlagKernelDropped. | |
*/ | |
kFSEventStreamEventFlagMustScanSubDirs = 0x00000001, | |
/* | |
* The kFSEventStreamEventFlagUserDropped or | |
* kFSEventStreamEventFlagKernelDropped flags may be set in addition | |
* to the kFSEventStreamEventFlagMustScanSubDirs flag to indicate | |
* that a problem occurred in buffering the events (the particular | |
* flag set indicates where the problem occurred) and that the client | |
* must do a full scan of any directories (and their subdirectories, | |
* recursively) being monitored by this stream. If you asked to | |
* monitor multiple paths with this stream then you will be notified | |
* about all of them. Your code need only check for the | |
* kFSEventStreamEventFlagMustScanSubDirs flag; these flags (if | |
* present) only provide information to help you diagnose the problem. | |
*/ | |
kFSEventStreamEventFlagUserDropped = 0x00000002, | |
kFSEventStreamEventFlagKernelDropped = 0x00000004, | |
/* | |
* If kFSEventStreamEventFlagEventIdsWrapped is set, it means the | |
* 64-bit event ID counter wrapped around. As a result, | |
* previously-issued event ID's are no longer valid arguments for the | |
* sinceWhen parameter of the FSEventStreamCreate...() functions. | |
*/ | |
kFSEventStreamEventFlagEventIdsWrapped = 0x00000008, | |
/* | |
* Denotes a sentinel event sent to mark the end of the "historical" | |
* events sent as a result of specifying a sinceWhen value in the | |
* FSEventStreamCreate...() call that created this event stream. (It | |
* will not be sent if kFSEventStreamEventIdSinceNow was passed for | |
* sinceWhen.) After invoking the client's callback with all the | |
* "historical" events that occurred before now, the client's | |
* callback will be invoked with an event where the | |
* kFSEventStreamEventFlagHistoryDone flag is set. The client should | |
* ignore the path supplied in this callback. | |
*/ | |
kFSEventStreamEventFlagHistoryDone = 0x00000010, | |
/* | |
* Denotes a special event sent when there is a change to one of the | |
* directories along the path to one of the directories you asked to | |
* watch. When this flag is set, the event ID is zero and the path | |
* corresponds to one of the paths you asked to watch (specifically, | |
* the one that changed). The path may no longer exist because it or | |
* one of its parents was deleted or renamed. Events with this flag | |
* set will only be sent if you passed the flag | |
* kFSEventStreamCreateFlagWatchRoot to FSEventStreamCreate...() when | |
* you created the stream. | |
*/ | |
kFSEventStreamEventFlagRootChanged = 0x00000020, | |
/* | |
* Denotes a special event sent when a volume is mounted underneath | |
* one of the paths being monitored. The path in the event is the | |
* path to the newly-mounted volume. You will receive one of these | |
* notifications for every volume mount event inside the kernel | |
* (independent of DiskArbitration). Beware that a newly-mounted | |
* volume could contain an arbitrarily large directory hierarchy. | |
* Avoid pitfalls like triggering a recursive scan of a non-local | |
* filesystem, which you can detect by checking for the absence of | |
* the MNT_LOCAL flag in the f_flags returned by statfs(). Also be | |
* aware of the MNT_DONTBROWSE flag that is set for volumes which | |
* should not be displayed by user interface elements. | |
*/ | |
kFSEventStreamEventFlagMount = 0x00000040, | |
/* | |
* Denotes a special event sent when a volume is unmounted underneath | |
* one of the paths being monitored. The path in the event is the | |
* path to the directory from which the volume was unmounted. You | |
* will receive one of these notifications for every volume unmount | |
* event inside the kernel. This is not a substitute for the | |
* notifications provided by the DiskArbitration framework; you only | |
* get notified after the unmount has occurred. Beware that | |
* unmounting a volume could uncover an arbitrarily large directory | |
* hierarchy, although Mac OS X never does that. | |
*/ | |
kFSEventStreamEventFlagUnmount = 0x00000080, /* These flags are only set if you specified the FileEvents*/ | |
/* flags when creating the stream.*/ | |
kFSEventStreamEventFlagItemCreated = 0x00000100, | |
kFSEventStreamEventFlagItemRemoved = 0x00000200, | |
kFSEventStreamEventFlagItemInodeMetaMod = 0x00000400, | |
kFSEventStreamEventFlagItemRenamed = 0x00000800, | |
kFSEventStreamEventFlagItemModified = 0x00001000, | |
kFSEventStreamEventFlagItemFinderInfoMod = 0x00002000, | |
kFSEventStreamEventFlagItemChangeOwner = 0x00004000, | |
kFSEventStreamEventFlagItemXattrMod = 0x00008000, | |
kFSEventStreamEventFlagItemIsFile = 0x00010000, | |
kFSEventStreamEventFlagItemIsDir = 0x00020000, | |
kFSEventStreamEventFlagItemIsSymlink = 0x00040000, | |
kFSEventStreamEventFlagOwnEvent = 0x00080000 | |
}; | |
/* | |
* FSEventStreamEventId | |
* | |
* Discussion: | |
* Event IDs that can be passed to the FSEventStreamCreate...() | |
* functions and FSEventStreamCallback(). They are monotonically | |
* increasing per system, even across reboots and drives coming and | |
* going. They bear no relation to any particular clock or timebase. | |
*/ | |
typedef UInt64 FSEventStreamEventId; | |
enum { | |
kFSEventStreamEventIdSinceNow = 0xFFFFFFFFFFFFFFFFULL | |
}; | |
/* | |
* FSEventStreamRef | |
* | |
* Discussion: | |
* This is the type of a reference to an FSEventStream. | |
*/ | |
typedef struct __FSEventStream* FSEventStreamRef; | |
/* | |
* ConstFSEventStreamRef | |
* | |
* Discussion: | |
* This is the type of a reference to a constant FSEventStream. | |
*/ | |
typedef const struct __FSEventStream* ConstFSEventStreamRef; | |
/* | |
* FSEventStreamContext | |
* | |
* Discussion: | |
* Structure containing client-supplied data (and callbacks to | |
* manage it) that should be associated with a newly-created stream. | |
*/ | |
struct FSEventStreamContext { | |
/* | |
* Currently the only valid value is zero. | |
*/ | |
CFIndex version; | |
/* | |
* An arbitrary client-defined value (for instance, a pointer) to be | |
* associated with the stream and passed to the callback when it is | |
* invoked. If a non-NULL value is supplied for the retain callback | |
* the framework will use it to retain this value. If a non-NULL | |
* value is supplied for the release callback then when the stream is | |
* deallocated it will be used to release this value. This can be | |
* NULL. | |
*/ | |
void * info; | |
/* | |
* The callback used retain the info pointer. This can be NULL. | |
*/ | |
CFAllocatorRetainCallBack retain; | |
/* | |
* The callback used release a retain on the info pointer. This can | |
* be NULL. | |
*/ | |
CFAllocatorReleaseCallBack release; | |
/* | |
* The callback used to create a descriptive string representation of | |
* the info pointer (or the data pointed to by the info pointer) for | |
* debugging purposes. This can be NULL. | |
*/ | |
CFAllocatorCopyDescriptionCallBack copyDescription; | |
}; | |
typedef struct FSEventStreamContext FSEventStreamContext; | |
/* | |
* FSEventStreamCallback | |
* | |
* Discussion: | |
* This is the type of the callback function supplied by the client | |
* when creating a new stream. This callback is invoked by the | |
* service from the client's runloop(s) when events occur, per the | |
* parameters specified when the stream was created. | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* The stream for which event(s) occurred. | |
* | |
* clientCallBackInfo: | |
* The info field that was supplied in the context when this | |
* stream was created. | |
* | |
* numEvents: | |
* The number of events being reported in this callback. Each of | |
* the arrays (eventPaths, eventFlags, eventIds) will have this | |
* many elements. | |
* | |
* eventPaths: | |
* An array of paths to the directories in which event(s) | |
* occurred. The type of this parameter depends on the flags | |
* passed to FSEventStreamCreate...(). If | |
* kFSEventStreamCreateFlagUseCFTypes was set, then this will be a | |
* CFArrayRef containing CFStringRef objects (per | |
* CFStringCreateWithFileSystemRepresentation()). Ownership | |
* follows the Get rule, and they will be released by the | |
* framework after your callback returns. If | |
* kFSEventStreamCreateFlagUseCFTypes was not set, then the | |
* framework will pass your callback a raw C array of raw C | |
* strings that will be deallocated by the framework after your | |
* callback returns. A path might be "/" if ether of these flags | |
* is set for the event: kFSEventStreamEventFlagUserDropped, | |
* kFSEventStreamEventFlagKernelDropped. | |
* | |
* eventFlags: | |
* An array of flag words corresponding to the paths in the | |
* eventPaths parameter. If no flags are set, then there was some | |
* change in the directory at the specific path supplied in this | |
* event. See FSEventStreamEventFlags. | |
* | |
* eventIds: | |
* An array of FSEventStreamEventIds corresponding to the paths in | |
* the eventPaths parameter. Each event ID comes from the most | |
* recent event being reported in the corresponding directory | |
* named in the eventPaths parameter. Event IDs all come from a | |
* single global source. They are guaranteed to always be | |
* increasing, usually in leaps and bounds, even across system | |
* reboots and moving drives from one machine to another. Just | |
* before invoking your callback your stream is updated so that | |
* calling the accessor FSEventStreamGetLatestEventId() will | |
* return the largest of the values passed in the eventIds | |
* parameter; if you were to stop processing events from this | |
* stream after this callback and resume processing them later | |
* from a newly-created FSEventStream, this is the value you would | |
* pass for the sinceWhen parameter to the | |
* FSEventStreamCreate...() function. | |
*/ | |
typedef CALLBACK_API_C( void , FSEventStreamCallback )(ConstFSEventStreamRef streamRef, void *clientCallBackInfo, size_t numEvents, void *eventPaths, const FSEventStreamEventFlags eventFlags[], const FSEventStreamEventId eventIds[]); | |
/* | |
* Create | |
*/ | |
/* | |
* FSEventStreamCreate() | |
* | |
* Discussion: | |
* Creates a new FS event stream object with the given parameters. | |
* In order to start receiving callbacks you must also call | |
* FSEventStreamScheduleWithRunLoop() and FSEventStreamStart(). | |
* | |
* Parameters: | |
* | |
* allocator: | |
* The CFAllocator to be used to allocate memory for the stream. | |
* Pass NULL or kCFAllocatorDefault to use the current default | |
* allocator. | |
* | |
* callback: | |
* An FSEventStreamCallback which will be called when FS events | |
* occur. | |
* | |
* context: | |
* A pointer to the FSEventStreamContext structure the client | |
* wants to associate with this stream. Its fields are copied out | |
* into the stream itself so its memory can be released after the | |
* stream is created. Passing NULL is allowed and has the same | |
* effect as passing a structure whose fields are all set to zero. | |
* | |
* pathsToWatch: | |
* A CFArray of CFStringRefs, each specifying a path to a | |
* directory, signifying the root of a filesystem hierarchy to be | |
* watched for modifications. | |
* | |
* sinceWhen: | |
* The service will supply events that have happened after the | |
* given event ID. To ask for events "since now" pass the constant | |
* kFSEventStreamEventIdSinceNow. Often, clients will supply the | |
* highest-numbered FSEventStreamEventId they have received in a | |
* callback, which they can obtain via the | |
* FSEventStreamGetLatestEventId() accessor. Do not pass zero for | |
* sinceWhen, unless you want to receive events for every | |
* directory modified since "the beginning of time" -- an unlikely | |
* scenario. | |
* | |
* latency: | |
* The number of seconds the service should wait after hearing | |
* about an event from the kernel before passing it along to the | |
* client via its callback. Specifying a larger value may result | |
* in more effective temporal coalescing, resulting in fewer | |
* callbacks and greater overall efficiency. | |
* | |
* flags: | |
* Flags that modify the behavior of the stream being created. See | |
* FSEventStreamCreateFlags. | |
* | |
* Result: | |
* A valid FSEventStreamRef. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern FSEventStreamRef | |
FSEventStreamCreate( | |
CFAllocatorRef allocator, | |
FSEventStreamCallback callback, | |
FSEventStreamContext * context, | |
CFArrayRef pathsToWatch, | |
FSEventStreamEventId sinceWhen, | |
CFTimeInterval latency, | |
FSEventStreamCreateFlags flags) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventStreamCreateRelativeToDevice() | |
* | |
* Discussion: | |
* Creates a new FS event stream object for a particular device with | |
* the given parameters. In order to start receiving callbacks you | |
* must also call FSEventStreamScheduleWithRunLoop() and | |
* FSEventStreamStart(). | |
* | |
* Parameters: | |
* | |
* allocator: | |
* The CFAllocator to be used to allocate memory for the stream. | |
* Pass NULL or kCFAllocatorDefault to use the current default | |
* allocator. | |
* | |
* callback: | |
* An FSEventStreamCallback which will be called when FS events | |
* occur. | |
* | |
* context: | |
* A pointer to the FSEventStreamContext structure the client | |
* wants to associate with this stream. Its fields are copied out | |
* into the stream itself so its memory can be released after the | |
* stream is created. | |
* | |
* deviceToWatch: | |
* A dev_t corresponding to the device which you want to receive | |
* notifications from. The dev_t is the same as the st_dev field | |
* from a stat structure of a file on that device or the f_fsid[0] | |
* field of a statfs structure. If the value of dev is zero, it | |
* is ignored. | |
* | |
* pathsToWatchRelativeToDevice: | |
* A CFArray of CFStringRefs, each specifying a relative path to a | |
* directory on the device identified by the dev parameter. The | |
* paths should be relative to the root of the device. For | |
* example, if a volume "MyData" is mounted at "/Volumes/MyData" | |
* and you want to watch "/Volumes/MyData/Pictures/July", specify | |
* a path string of "Pictures/July". To watch the root of a | |
* volume pass a path of "" (the empty string). | |
* | |
* sinceWhen: | |
* The service will supply events that have happened after the | |
* given event ID. To ask for events "since now" pass the constant | |
* kFSEventStreamEventIdSinceNow. Often, clients will supply the | |
* highest-numbered FSEventStreamEventId they have received in a | |
* callback, which they can obtain via the | |
* FSEventStreamGetLatestEventId() accessor. Do not pass zero for | |
* sinceWhen, unless you want to receive events for every | |
* directory modified since "the beginning of time" -- an unlikely | |
* scenario. | |
* | |
* latency: | |
* The number of seconds the service should wait after hearing | |
* about an event from the kernel before passing it along to the | |
* client via its callback. Specifying a larger value may result | |
* in more effective temporal coalescing, resulting in fewer | |
* callbacks. | |
* | |
* flags: | |
* Flags that modify the behavior of the stream being created. See | |
* FSEventStreamCreateFlags. | |
* | |
* Result: | |
* A valid FSEventStreamRef. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern FSEventStreamRef | |
FSEventStreamCreateRelativeToDevice( | |
CFAllocatorRef allocator, | |
FSEventStreamCallback callback, | |
FSEventStreamContext * context, | |
dev_t deviceToWatch, | |
CFArrayRef pathsToWatchRelativeToDevice, | |
FSEventStreamEventId sinceWhen, | |
CFTimeInterval latency, | |
FSEventStreamCreateFlags flags) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* Accessors | |
*/ | |
/* | |
* FSEventStreamGetLatestEventId() | |
* | |
* Discussion: | |
* Fetches the sinceWhen property of the stream. Upon receiving an | |
* event (and just before invoking the client's callback) this | |
* attribute is updated to the highest-numbered event ID mentioned | |
* in the event. | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* A valid stream. | |
* | |
* Result: | |
* The sinceWhen attribute of the stream. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern FSEventStreamEventId | |
FSEventStreamGetLatestEventId(ConstFSEventStreamRef streamRef) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventStreamGetDeviceBeingWatched() | |
* | |
* Discussion: | |
* Fetches the dev_t supplied when the stream was created via | |
* FSEventStreamCreateRelativeToDevice(), otherwise 0. | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* A valid stream. | |
* | |
* Result: | |
* The dev_t for a device-relative stream, otherwise 0. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern dev_t | |
FSEventStreamGetDeviceBeingWatched(ConstFSEventStreamRef streamRef) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventStreamCopyPathsBeingWatched() | |
* | |
* Discussion: | |
* Fetches the paths supplied when the stream was created via one of | |
* the FSEventStreamCreate...() functions. | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* A valid stream. | |
* | |
* Result: | |
* A CFArray of CFStringRefs corresponding to those supplied when | |
* the stream was created. Ownership follows the Copy rule. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern CFArrayRef | |
FSEventStreamCopyPathsBeingWatched(ConstFSEventStreamRef streamRef) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventsGetCurrentEventId() | |
* | |
* Discussion: | |
* Fetches the most recently generated event ID, system-wide (not | |
* just for one stream). By thetime it is returned to your | |
* application even newer events may have already been generated. | |
* | |
* Result: | |
* The event ID of the most recent event generated by the system. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern FSEventStreamEventId | |
FSEventsGetCurrentEventId(void) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventsCopyUUIDForDevice() | |
* | |
* Discussion: | |
* Gets the UUID associated with a device, or NULL if not possible | |
* (for example, on read-only device). A (non-NULL) UUID uniquely | |
* identifies a given stream of FSEvents. If this (non-NULL) UUID | |
* is different than one that you stored from a previous run then | |
* the event stream is different (for example, because FSEvents were | |
* purged, because the disk was erased, or because the event ID | |
* counter wrapped around back to zero). A NULL return value | |
* indicates that "historical" events are not available, i.e., you | |
* should not supply a "sinceWhen" value to FSEventStreamCreate...() | |
* other than kFSEventStreamEventIdSinceNow. | |
* | |
* Parameters: | |
* | |
* dev: | |
* The dev_t of the device that you want to get the UUID for. | |
* | |
* Result: | |
* The UUID associated with the stream of events on this device, or | |
* NULL if no UUID is available (for example, on a read-only | |
* device). The UUID is stored on the device itself and travels | |
* with it even when the device is attached to different computers. | |
* Ownership follows the Copy Rule. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern CFUUIDRef | |
FSEventsCopyUUIDForDevice(dev_t dev) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventsGetLastEventIdForDeviceBeforeTime() | |
* | |
* Discussion: | |
* Gets the last event ID for the given device that was returned | |
* before the given time. This is conservative in the sense that if | |
* you then use the returned event ID as the sinceWhen parameter of | |
* FSEventStreamCreateRelativeToDevice() that you will not miss any | |
* events that happened since that time. On the other hand, you | |
* might receive some (harmless) extra events. Beware: there are | |
* things that can cause this to fail to be accurate. For example, | |
* someone might change the system's clock (either backwards or | |
* forwards). Or an external drive might be used on different | |
* systems without perfectly synchronized clocks. | |
* | |
* Parameters: | |
* | |
* dev: | |
* The dev_t of the device. | |
* | |
* time: | |
* The time as a CFAbsoluteTime whose value is the number of | |
* seconds since Jan 1, 1970 (i.e. a posix style time_t). | |
* | |
* Result: | |
* The last event ID for the given device that was returned before | |
* the given time. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern FSEventStreamEventId | |
FSEventsGetLastEventIdForDeviceBeforeTime( | |
dev_t dev, | |
CFAbsoluteTime time) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventsPurgeEventsForDeviceUpToEventId() | |
* | |
* Discussion: | |
* Purges old events from the persistent per-volume database | |
* maintained by the service. Can only be called by the root user. | |
* | |
* Parameters: | |
* | |
* dev: | |
* The dev_t of the device. | |
* | |
* eventId: | |
* The event ID. | |
* | |
* Result: | |
* True if it succeeds, otherwise False if it fails. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern Boolean | |
FSEventsPurgeEventsForDeviceUpToEventId( | |
dev_t dev, | |
FSEventStreamEventId eventId) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* Retain, Release | |
*/ | |
/* | |
* @function FSEventStreamRetain | |
* Increments the stream's refcount. The refcount is initially one and is | |
* decremented via FSEventStreamRelease(). | |
* | |
* @param streamRef | |
* A valid stream. | |
* | |
*/ | |
/* | |
* FSEventStreamRetain() | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern void | |
FSEventStreamRetain(FSEventStreamRef streamRef) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventStreamRelease() | |
* | |
* Discussion: | |
* Decrements the stream's refcount. The refcount is initially one | |
* and is incremented via FSEventStreamRetain(). If the refcount | |
* reaches zero then the stream is deallocated. | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* A valid stream. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern void | |
FSEventStreamRelease(FSEventStreamRef streamRef) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* ScheduleWithRunLoop, UnscheduleFromRunLoop, Invalidate | |
*/ | |
/* | |
* FSEventStreamScheduleWithRunLoop() | |
* | |
* Discussion: | |
* This function schedules the stream on the specified run loop, | |
* like CFRunLoopAddSource() does for a CFRunLoopSourceRef. The | |
* caller is responsible for ensuring that the stream is scheduled | |
* on at least one run loop and that at least one of the run loops | |
* on which the stream is scheduled is being run. To start receiving | |
* events on the stream, call FSEventStreamStart(). To remove the | |
* stream from the run loops upon which it has been scheduled, call | |
* FSEventStreamUnscheduleFromRunLoop() or FSEventStreamInvalidate(). | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* A valid stream. | |
* | |
* runLoop: | |
* The run loop on which to schedule the stream. | |
* | |
* runLoopMode: | |
* A run loop mode on which to schedule the stream. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern void | |
FSEventStreamScheduleWithRunLoop( | |
FSEventStreamRef streamRef, | |
CFRunLoopRef runLoop, | |
CFStringRef runLoopMode) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventStreamUnscheduleFromRunLoop() | |
* | |
* Discussion: | |
* This function removes the stream from the specified run loop, | |
* like CFRunLoopRemoveSource() does for a CFRunLoopSourceRef. | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* A valid stream. | |
* | |
* runLoop: | |
* The run loop from which to unschedule the stream. | |
* | |
* runLoopMode: | |
* The run loop mode from which to unschedule the stream. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern void | |
FSEventStreamUnscheduleFromRunLoop( | |
FSEventStreamRef streamRef, | |
CFRunLoopRef runLoop, | |
CFStringRef runLoopMode) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventStreamSetDispatchQueue() | |
* | |
* Discussion: | |
* This function schedules the stream on the specified dispatch | |
* queue. The caller is responsible for ensuring that the stream is | |
* scheduled on a dispatch queue and that the queue is started. If | |
* there is a problem scheduling the stream on the queue an error | |
* will be returned when you try to Start the stream. To start | |
* receiving events on the stream, call FSEventStreamStart(). To | |
* remove the stream from the queue on which it was scheduled, call | |
* FSEventStreamSetDispatchQueue() with a NULL queue parameter or | |
* call FSEventStreamInvalidate() which will do the same thing. | |
* Note: you must eventually call FSEventStreamInvalidate() and it | |
* is an error to call FSEventStreamInvalidate() without having the | |
* stream either scheduled on a runloop or a dispatch queue, so do | |
* not set the dispatch queue to NULL before calling | |
* FSEventStreamInvalidate(). | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* A valid stream. | |
* | |
* q: | |
* The dispatch queue to use to receive events (or NULL to to stop | |
* receiving events from the stream). | |
* | |
* Availability: | |
* Mac OS X: in version 10.6 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern void | |
FSEventStreamSetDispatchQueue( | |
FSEventStreamRef streamRef, | |
dispatch_queue_t q) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_NA); | |
/* | |
* FSEventStreamInvalidate() | |
* | |
* Discussion: | |
* Invalidates the stream, like CFRunLoopSourceInvalidate() does for | |
* a CFRunLoopSourceRef. It will be unscheduled from any runloops | |
* or dispatch queues upon which it had been scheduled. | |
* FSEventStreamInvalidate() can only be called on the stream after | |
* you have called FSEventStreamScheduleWithRunLoop() or | |
* FSEventStreamSetDispatchQueue(). | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* A valid stream. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern void | |
FSEventStreamInvalidate(FSEventStreamRef streamRef) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* Start, Flush, Stop | |
*/ | |
/* | |
* FSEventStreamStart() | |
* | |
* Discussion: | |
* Attempts to register with the FS Events service to receive events | |
* per the parameters in the stream. FSEventStreamStart() can only | |
* be called once the stream has been scheduled on at least one | |
* runloop, via FSEventStreamScheduleWithRunLoop(). Once started, | |
* the stream can be stopped via FSEventStreamStop(). | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* A valid stream. | |
* | |
* Result: | |
* True if it succeeds, otherwise False if it fails. It ought to | |
* always succeed, but in the event it does not then your code | |
* should fall back to performing recursive scans of the directories | |
* of interest as appropriate. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern Boolean | |
FSEventStreamStart(FSEventStreamRef streamRef) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventStreamFlushAsync() | |
* | |
* Discussion: | |
* Asks the FS Events service to flush out any events that have | |
* occurred but have not yet been delivered, due to the latency | |
* parameter that was supplied when the stream was created. This | |
* flushing occurs asynchronously -- do not expect the events to | |
* have already been delivered by the time this call returns. | |
* FSEventStreamFlushAsync() can only be called after the stream has | |
* been started, via FSEventStreamStart(). | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* A valid stream. | |
* | |
* Result: | |
* The largest event id of any event ever queued for this stream, | |
* otherwise zero if no events have been queued for this stream. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern FSEventStreamEventId | |
FSEventStreamFlushAsync(FSEventStreamRef streamRef) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventStreamFlushSync() | |
* | |
* Discussion: | |
* Asks the FS Events service to flush out any events that have | |
* occurred but have not yet been delivered, due to the latency | |
* parameter that was supplied when the stream was created. This | |
* flushing occurs synchronously -- by the time this call returns, | |
* your callback will have been invoked for every event that had | |
* already occurred at the time you made this call. | |
* FSEventStreamFlushSync() can only be called after the stream has | |
* been started, via FSEventStreamStart(). | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* A valid stream. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern void | |
FSEventStreamFlushSync(FSEventStreamRef streamRef) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventStreamStop() | |
* | |
* Discussion: | |
* Unregisters with the FS Events service. The client callback will | |
* not be called for this stream while it is stopped. | |
* FSEventStreamStop() can only be called if the stream has been | |
* started, via FSEventStreamStart(). Once stopped, the stream can | |
* be restarted via FSEventStreamStart(), at which point it will | |
* resume receiving events from where it left off ("sinceWhen"). | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* A valid stream. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern void | |
FSEventStreamStop(FSEventStreamRef streamRef) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* Debugging | |
*/ | |
/* | |
* FSEventStreamShow() | |
* | |
* Discussion: | |
* Prints a description of the supplied stream to stderr. For | |
* debugging only. | |
* | |
* Parameters: | |
* | |
* streamRef: | |
* A valid stream. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern void | |
FSEventStreamShow(ConstFSEventStreamRef streamRef) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventStreamCopyDescription() | |
* | |
* Discussion: | |
* Returns a CFStringRef containing the description of the supplied | |
* stream. For debugging only. | |
* | |
* Result: | |
* A CFStringRef containing the description of the supplied stream. | |
* Ownership follows the Copy rule. | |
* | |
* Availability: | |
* Mac OS X: in version 10.5 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern CFStringRef | |
FSEventStreamCopyDescription(ConstFSEventStreamRef streamRef) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA); | |
/* | |
* FSEventStreamSetExclusionPaths() | |
* | |
* Discussion: | |
* Sets directories to be filtered from the EventStream. | |
* A maximum of 8 directories maybe specified. | |
* | |
* Result: | |
* True if it succeeds, otherwise False if it fails. | |
* | |
* Availability: | |
* Mac OS X: in version 10.9 and later in CoreServices.framework | |
* CarbonLib: not available | |
* Non-Carbon CFM: not available | |
*/ | |
extern Boolean | |
FSEventStreamSetExclusionPaths(FSEventStreamRef streamRef, CFArrayRef pathsToExclude) __OSX_AVAILABLE_STARTING(__MAC_10_9, __IPHONE_NA); | |
#if PRAGMA_ENUM_ALWAYSINT | |
#pragma enumsalwaysint reset | |
#endif | |
#pragma pack(pop) | |
#ifdef __cplusplus | |
} | |
#endif | |
#endif /* __FSEVENTS__ */ |
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(lldb) thread select 3 | |
* thread #3: tid = 0x0002, 0x00007fff8b997583 CarbonCore`FSEventsClientProcessMessageCallback + 39, stop reason = signal SIGSTOP | |
frame #0: 0x00007fff8b997583 CarbonCore`FSEventsClientProcessMessageCallback + 39 | |
CarbonCore`FSEventsClientProcessMessageCallback + 39: | |
-> 0x7fff8b997583: callq 0x7fff8b987d4d ; FSEventsD2F_server | |
0x7fff8b997588: movq (%rbx), %rax | |
0x7fff8b99758b: cmpq -16(%rbp), %rax | |
0x7fff8b99758f: jne 0x7fff8b99759b ; FSEventsClientProcessMessageCallback + 63 | |
(lldb) bt | |
* thread #3: tid = 0x0002, 0x00007fff8b997583 CarbonCore`FSEventsClientProcessMessageCallback + 39, stop reason = signal SIGSTOP | |
frame #0: 0x00007fff8b997583 CarbonCore`FSEventsClientProcessMessageCallback + 39 | |
frame #1: 0x00007fff8dffdd04 CoreFoundation`__CFMachPortPerform + 388 | |
frame #2: 0x00007fff8dffdb69 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 41 | |
frame #3: 0x00007fff8dffdade CoreFoundation`__CFRunLoopDoSource1 + 478 | |
frame #4: 0x00007fff8dfeebd6 CoreFoundation`__CFRunLoopRun + 1830 | |
frame #5: 0x00007fff8dfee275 CoreFoundation`CFRunLoopRunSpecific + 309 | |
frame #6: 0x00007fff8e0a39d1 CoreFoundation`CFRunLoopRun + 97 | |
frame #7: 0x000000010024e587 node_g`uv__cf_loop_runner(arg=0x0000000100afbb40) + 103 at fsevents.c:511 | |
frame #8: 0x00007fff8aa8d899 libsystem_pthread.dylib`_pthread_body + 138 | |
frame #9: 0x00007fff8aa8d72a libsystem_pthread.dylib`_pthread_start + 137 | |
frame #10: 0x00007fff8aa91fc9 libsystem_pthread.dylib`thread_start + 13 | |
(lldb) fr v | |
(lldb) fr 7 | |
invalid command 'frame 7' | |
(lldb) fr s 7 | |
frame #7: 0x000000010024e587 node_g`uv__cf_loop_runner(arg=0x0000000100afbb40) + 103 at fsevents.c:511 | |
508 | |
509 uv_sem_post(&loop->cf_sem); | |
510 | |
-> 511 CFRunLoopRun(); | |
512 CFRunLoopRemoveSource(state->loop, | |
513 state->signal_source, | |
514 kCFRunLoopDefaultMode); | |
(lldb) fr v | |
(void *) arg = 0x0000000100afbb40 | |
(uv_loop_t *) loop = 0x0000000100afbb40 | |
(uv__cf_loop_state_t *) state = 0x00000001016034b0 | |
(lldb) p *state | |
(uv__cf_loop_state_t) $0 = { | |
loop = 0x0000000101603af0 | |
signal_source = 0x0000000101603530 | |
fsevent_need_reschedule = 0 | |
fsevent_stream = 0x000000010130cc10 | |
fsevent_sem = 6147 | |
fsevent_mutex = { | |
__sig = 1297437784 | |
__opaque = "" | |
} | |
fsevent_handles = { | |
prev = 0x0000000101603450 | |
next = 0x0000000101603450 | |
} | |
fsevent_handle_count = 1 | |
} | |
(lldb) p *loop | |
(uv_loop_t) $1 = { | |
data = 0x0000000000000000 | |
last_err = { | |
code = UV_ENOENT | |
sys_errno_ = 0 | |
} | |
active_handles = 4 | |
handle_queue = { | |
prev = 0x00000001016041d0 | |
next = 0x0000000100afbd90 | |
} | |
active_reqs = { | |
prev = 0x0000000100afbb68 | |
next = 0x0000000100afbb68 | |
} | |
stop_flag = 0 | |
flags = 0 | |
backend_fd = 5 | |
pending_queue = { | |
prev = 0x0000000100afbb90 | |
next = 0x0000000100afbb90 | |
} | |
watcher_queue = { | |
prev = 0x0000000100afbba0 | |
next = 0x0000000100afbba0 | |
} | |
watchers = 0x00000001016001f0 | |
nwatchers = 16 | |
nfds = 5 | |
wq = { | |
prev = 0x0000000100afbbc0 | |
next = 0x0000000100afbbc0 | |
} | |
wq_mutex = { | |
__sig = 1297437784 | |
__opaque = "" | |
} | |
wq_async = { | |
close_cb = 0x0000000000000000 | |
data = 0x0000000000000000 | |
loop = 0x0000000100afbb40 | |
type = UV_ASYNC | |
handle_queue = { | |
prev = 0x0000000100afbd90 | |
next = 0x0000000100af8938 | |
} | |
flags = 49152 | |
next_closing = 0x0000000000000000 | |
async_cb = 0x00000001002479c0 (node_g`uv__work_done at threadpool.c:197) | |
queue = { | |
prev = 0x0000000100afbcb8 | |
next = 0x0000000101604168 | |
} | |
pending = 0 | |
} | |
closing_handles = 0x0000000000000000 | |
process_handles = { | |
[0] = { | |
prev = 0x0000000100afbc78 | |
next = 0x0000000100afbc78 | |
} | |
} | |
prepare_handles = { | |
prev = 0x0000000100afbc88 | |
next = 0x0000000100afbc88 | |
} | |
check_handles = { | |
prev = 0x0000000100afbc98 | |
next = 0x0000000100afbc98 | |
} | |
idle_handles = { | |
prev = 0x0000000100afbca8 | |
next = 0x0000000100afbca8 | |
} | |
async_handles = { | |
prev = 0x0000000101604168 | |
next = 0x0000000100afbc58 | |
} | |
async_watcher = { | |
cb = 0x00000001002353b0 (node_g`uv__async_event at async.c:72) | |
io_watcher = { | |
cb = 0x0000000100235720 (node_g`uv__async_io at async.c:116) | |
pending_queue = { | |
prev = 0x0000000100afbcd8 | |
next = 0x0000000100afbcd8 | |
} | |
watcher_queue = { | |
prev = 0x0000000100afbce8 | |
next = 0x0000000100afbce8 | |
} | |
pevents = 1 | |
events = 1 | |
fd = 8 | |
rcount = 0 | |
wcount = 0 | |
} | |
wfd = 9 | |
} | |
timer_handles = { | |
rbh_root = 0x0000000101602a30 | |
} | |
time = 4244114 | |
signal_pipefd = { | |
[0] = 6 | |
[1] = 7 | |
} | |
signal_io_watcher = { | |
cb = 0x0000000100240e30 (node_g`uv__signal_event at signal.c:334) | |
pending_queue = { | |
prev = 0x0000000100afbd38 | |
next = 0x0000000100afbd38 | |
} | |
watcher_queue = { | |
prev = 0x0000000100afbd48 | |
next = 0x0000000100afbd48 | |
} | |
pevents = 1 | |
events = 1 | |
fd = 6 | |
rcount = 0 | |
wcount = 0 | |
} | |
child_watcher = { | |
close_cb = 0x0000000000000000 | |
data = 0x0000000000000000 | |
loop = 0x0000000100afbb40 | |
type = UV_SIGNAL | |
handle_queue = { | |
prev = 0x0000000100afbb58 | |
next = 0x0000000100afbc30 | |
} | |
flags = 32768 | |
next_closing = 0x0000000000000000 | |
signal_cb = 0x0000000000000000 | |
signum = 0 | |
tree_entry = { | |
rbe_left = 0x0000000000000000 | |
rbe_right = 0x0000000000000000 | |
rbe_parent = 0x0000000000000000 | |
rbe_color = 0 | |
} | |
caught_signals = 0 | |
dispatched_signals = 0 | |
} | |
emfile_fd = -1 | |
timer_counter = 1 | |
cf_thread = 0x0000000103109000 | |
_cf_reserved = 0x0000000000000000 | |
cf_state = 0x00000001016034b0 | |
cf_mutex = { | |
__sig = 1297437784 | |
__opaque = "" | |
} | |
cf_sem = 5891 | |
cf_signals = { | |
prev = 0x0000000100afbe58 | |
next = 0x0000000100afbe58 | |
} | |
} | |
(lldb) |
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