source: launchers/macosx/include/PidWatcher.h @ b40b987

Last change on this file since b40b987 was b40b987, checked in by meeh <meeh@…>, 2 years ago

Mac OSX Launcher:

  • Fixed issue with >> and compilers in C++ in subprocess.hpp
  • Added queue for logger
  • Misc
  • Property mode set to 100644
File size: 1.8 KB
Line 
1#pragma once
2
3#include <CoreFoundation/CoreFoundation.h>
4#include <unistd.h>
5#include <sys/event.h>
6
7
8using callbackType = void (CFFileDescriptorRef, CFOptionFlags, void *);
9using HandleFunction = std::function<void(int)>;
10
11static inline void noteProcDeath(CFFileDescriptorRef fdref, CFOptionFlags callBackTypes, void *info) {
12    struct kevent kev;
13    int fd = CFFileDescriptorGetNativeDescriptor(fdref);
14    kevent(fd, NULL, 0, &kev, 1, NULL);
15    // take action on death of process here
16    NSLog(@"process with pid '%u' died\n", (unsigned int)kev.ident);
17    //sendUserNotification(APP_IDSTR, @"The I2P router has stopped.");
18    CFFileDescriptorInvalidate(fdref);
19    CFRelease(fdref); // the CFFileDescriptorRef is no longer of any use in this example
20}
21// one argument, an integer pid to watch, required
22int watchPid(int pid, callbackType callback = noteProcDeath) {
23    int fd = kqueue();
24    struct kevent kev;
25    EV_SET(&kev, pid, EVFILT_PROC, EV_ADD|EV_ENABLE, NOTE_EXIT, 0, NULL);
26    kevent(fd, &kev, 1, NULL, 0, NULL);
27    CFFileDescriptorRef fdref = CFFileDescriptorCreate(kCFAllocatorDefault, fd, true, callback, NULL);
28    CFFileDescriptorEnableCallBacks(fdref, kCFFileDescriptorReadCallBack);
29    CFRunLoopSourceRef source = CFFileDescriptorCreateRunLoopSource(kCFAllocatorDefault, fdref, 0);
30    CFRunLoopAddSource(CFRunLoopGetMain(), source, kCFRunLoopDefaultMode);
31    CFRelease(source);
32    /*
33    seconds
34    The length of time to run the run loop. If 0, only one pass is made through the run loop before returning;
35    if multiple sources or timers are ready to fire immediately, only one (possibly two if one is a version
36    0 source) will be fired, regardless of the value of returnAfterSourceHandled.
37    */
38    CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, false);
39    return 0;
40}
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