1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
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
|
#include <SDL.h>
#include <CoreServices/CoreServices.h>
struct dirmonitor_internal {
SDL_mutex* lock;
char** changes;
size_t count;
FSEventStreamRef stream;
int fds[2];
};
CFRunLoopRef main_run_loop;
struct dirmonitor_internal* init_dirmonitor() {
static bool mainloop_registered = false;
if (!mainloop_registered) {
main_run_loop = CFRunLoopGetCurrent();
mainloop_registered = true;
}
struct dirmonitor_internal* monitor = malloc(sizeof(struct dirmonitor_internal));
monitor->stream = NULL;
monitor->changes = NULL;
monitor->count = 0;
monitor->lock = NULL;
return monitor;
}
static void stop_monitor_stream(struct dirmonitor_internal* monitor) {
if (monitor->stream) {
FSEventStreamStop(monitor->stream);
FSEventStreamUnscheduleFromRunLoop(
monitor->stream, main_run_loop, kCFRunLoopDefaultMode
);
FSEventStreamInvalidate(monitor->stream);
FSEventStreamRelease(monitor->stream);
monitor->stream = NULL;
SDL_LockMutex(monitor->lock);
write(monitor->fds[1], "", 1);
close(monitor->fds[0]);
close(monitor->fds[1]);
if (monitor->count > 0) {
for (size_t i = 0; i<monitor->count; i++) {
free(monitor->changes[i]);
}
free(monitor->changes);
monitor->changes = NULL;
monitor->count = 0;
}
SDL_UnlockMutex(monitor->lock);
SDL_DestroyMutex(monitor->lock);
}
}
void deinit_dirmonitor(struct dirmonitor_internal* monitor) {
stop_monitor_stream(monitor);
}
static void stream_callback(
ConstFSEventStreamRef streamRef,
void* monitor_ptr,
size_t numEvents,
void* eventPaths,
const FSEventStreamEventFlags eventFlags[],
const FSEventStreamEventId eventIds[]
)
{
if (numEvents <= 0) {
return;
}
struct dirmonitor_internal* monitor = monitor_ptr;
char** path_list = eventPaths;
SDL_LockMutex(monitor->lock);
size_t total = 0;
if (monitor->count == 0) {
total = numEvents;
monitor->changes = calloc(numEvents, sizeof(char*));
} else {
total = monitor->count + numEvents;
monitor->changes = realloc(
monitor->changes,
sizeof(char*) * total
);
}
for (size_t idx = monitor->count; idx < total; idx++) {
size_t pidx = idx - monitor->count;
monitor->changes[idx] = malloc(strlen(path_list[pidx])+1);
strcpy(monitor->changes[idx], path_list[pidx]);
}
monitor->count = total;
if (total > 0)
write(monitor->fds[1], "", 1);
SDL_UnlockMutex(monitor->lock);
}
int get_changes_dirmonitor(
struct dirmonitor_internal* monitor,
char* buffer,
int buffer_size
) {
char response[1];
read(monitor->fds[0], response, 1);
size_t results = 0;
SDL_LockMutex(monitor->lock);
results = monitor->count;
SDL_UnlockMutex(monitor->lock);
return results;
}
int translate_changes_dirmonitor(
struct dirmonitor_internal* monitor,
char* buffer,
int buffer_size,
int (*change_callback)(int, const char*, void*),
void* L
) {
SDL_LockMutex(monitor->lock);
if (monitor->count > 0) {
for (size_t i = 0; i<monitor->count; i++) {
change_callback(strlen(monitor->changes[i]), monitor->changes[i], L);
free(monitor->changes[i]);
}
free(monitor->changes);
monitor->changes = NULL;
monitor->count = 0;
}
SDL_UnlockMutex(monitor->lock);
return 0;
}
int add_dirmonitor(struct dirmonitor_internal* monitor, const char* path) {
stop_monitor_stream(monitor);
monitor->lock = SDL_CreateMutex();
pipe(monitor->fds);
FSEventStreamContext context = {
.info = monitor,
.retain = NULL,
.release = NULL,
.copyDescription = NULL,
.version = 0
};
CFStringRef paths[] = {
CFStringCreateWithCString(NULL, path, kCFStringEncodingUTF8)
};
monitor->stream = FSEventStreamCreate(
NULL,
stream_callback,
&context,
CFArrayCreate(NULL, (const void **)&paths, 1, NULL),
kFSEventStreamEventIdSinceNow,
0,
kFSEventStreamCreateFlagNone
| kFSEventStreamCreateFlagWatchRoot
| kFSEventStreamCreateFlagFileEvents
);
FSEventStreamScheduleWithRunLoop(
monitor->stream, main_run_loop, kCFRunLoopDefaultMode
);
if (!FSEventStreamStart(monitor->stream)) {
stop_monitor_stream(monitor);
return -1;
}
return 1;
}
void remove_dirmonitor(struct dirmonitor_internal* monitor, int fd) {
stop_monitor_stream(monitor);
}
int get_mode_dirmonitor() { return 1; }
|
