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| author | YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp> | 2020-04-15 10:04:21 +0200 |
|---|---|---|
| committer | Robert Pluim <rpluim@gmail.com> | 2020-04-15 11:55:16 +0200 |
| commit | d87a4d1f4e1a84b2a527ebe5a04516f47d4717ea (patch) | |
| tree | 03d8c26affb65155417f52c1de0b34209ce0ba13 | |
| parent | e5ca8e5e73acbe9147203d1365365626fc35441e (diff) | |
| download | emacs-d87a4d1f4e1a84b2a527ebe5a04516f47d4717ea.tar.gz | |
Limit RLIMIT_NOFILE to FD_SETSIZE on macOS
* src/nsterm.m ([EmacsApp applicationDidFinishLaunching:]): Call
CoreFoundation functions that increase RLIMIT_NOFILE behind our back
during startup, and then set RLIMIT_NOFILE back to FD_SETSIZE to avoid
crashes in setup_process_coding_system (Bug#39164).
| -rw-r--r-- | src/nsterm.m | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/nsterm.m b/src/nsterm.m index e92e3d5a6f5..ac467840a25 100644 --- a/src/nsterm.m +++ b/src/nsterm.m @@ -5812,6 +5812,21 @@ ns_term_shutdown (int sig) #endif #ifdef NS_IMPL_COCOA + /* Some functions/methods in CoreFoundation/Foundation increase the + maximum number of open files for the process in their first call. + We make dummy calls to them and then reduce the resource limit + here, since pselect cannot handle file descriptors that are + greater than or equal to FD_SETSIZE. */ + CFSocketGetTypeID (); + CFFileDescriptorGetTypeID (); + [[NSFileHandle alloc] init]; + struct rlimit rlim; + if (getrlimit (RLIMIT_NOFILE, &rlim) == 0 + && rlim.rlim_cur > FD_SETSIZE) + { + rlim.rlim_cur = FD_SETSIZE; + setrlimit (RLIMIT_NOFILE, &rlim); + } if ([NSApp activationPolicy] == NSApplicationActivationPolicyProhibited) { /* Set the app's activation policy to regular when we run outside of a bundle. This is already done for us by Info.plist when we |