30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
#import "OFKqueueKernelEventObserver.h"
#import "OFArray.h"
#import "OFInitializationFailedException.h"
#import "OFObserveFailedException.h"
#import "OFOutOfRangeException.h"
#define EVENTLIST_SIZE 64
@implementation OFKqueueKernelEventObserver
- (instancetype)init
{
self = [super init];
@try {
|
|
|
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
#import "OFKqueueKernelEventObserver.h"
#import "OFArray.h"
#import "OFInitializationFailedException.h"
#import "OFObserveFailedException.h"
#import "OFOutOfRangeException.h"
#define eventListSize 64
@implementation OFKqueueKernelEventObserver
- (instancetype)init
{
self = [super init];
@try {
|
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0)
@throw [OFObserveFailedException exceptionWithObserver: self
errNo: errno];
[super removeObjectForWriting: object];
}
- (void)observeForTimeInterval: (of_time_interval_t)timeInterval
{
struct timespec timeout;
struct kevent eventList[EVENTLIST_SIZE];
int events;
if ([self of_processReadBuffers])
return;
timeout.tv_sec = (time_t)timeInterval;
timeout.tv_nsec = (long)((timeInterval - timeout.tv_sec) * 1000000000);
events = kevent(_kernelQueue, NULL, 0, eventList, EVENTLIST_SIZE,
(timeInterval != -1 ? &timeout : NULL));
if (events < 0)
@throw [OFObserveFailedException exceptionWithObserver: self
errNo: errno];
for (int i = 0; i < events; i++) {
void *pool;
if (eventList[i].flags & EV_ERROR)
@throw [OFObserveFailedException
exceptionWithObserver: self
errNo: (int)eventList[i].data];
if (eventList[i].ident == (uintptr_t)_cancelFD[0]) {
char buffer;
assert(eventList[i].filter == EVFILT_READ);
OF_ENSURE(read(_cancelFD[0], &buffer, 1) == 1);
continue;
}
pool = objc_autoreleasePoolPush();
switch (eventList[i].filter) {
|
|
|
|
|
|
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
if (kevent(_kernelQueue, &event, 1, NULL, 0, NULL) != 0)
@throw [OFObserveFailedException exceptionWithObserver: self
errNo: errno];
[super removeObjectForWriting: object];
}
- (void)observeForTimeInterval: (OFTimeInterval)timeInterval
{
struct timespec timeout;
struct kevent eventList[eventListSize];
int events;
if ([self of_processReadBuffers])
return;
timeout.tv_sec = (time_t)timeInterval;
timeout.tv_nsec = (long)((timeInterval - timeout.tv_sec) * 1000000000);
events = kevent(_kernelQueue, NULL, 0, eventList, eventListSize,
(timeInterval != -1 ? &timeout : NULL));
if (events < 0)
@throw [OFObserveFailedException exceptionWithObserver: self
errNo: errno];
for (int i = 0; i < events; i++) {
void *pool;
if (eventList[i].flags & EV_ERROR)
@throw [OFObserveFailedException
exceptionWithObserver: self
errNo: (int)eventList[i].data];
if (eventList[i].ident == (uintptr_t)_cancelFD[0]) {
char buffer;
assert(eventList[i].filter == EVFILT_READ);
OFEnsure(read(_cancelFD[0], &buffer, 1) == 1);
continue;
}
pool = objc_autoreleasePoolPush();
switch (eventList[i].filter) {
|