process: api to set file descriptor soft limit

atom/common/api/atom_bindings.cc

@@ -11,6 +11,7 @@
 #include "atom/common/chrome_version.h"
 #include "atom/common/native_mate_converters/string16_converter.h"
 #include "base/logging.h"
+#include "base/process/process_metrics.h"
 #include "native_mate/dictionary.h"
 
 #include "atom/common/node_includes.h"
@@ -61,6 +62,9 @@ void AtomBindings::BindTo(v8::Isolate* isolate,
   dict.SetMethod("crash", &Crash);
   dict.SetMethod("hang", &Hang);
   dict.SetMethod("log", &Log);
+#if defined(OS_POSIX)
+  dict.SetMethod("setFdLimit", &base::SetFdLimit);
+#endif
   dict.SetMethod("activateUvLoop",
       base::Bind(&AtomBindings::ActivateUVLoop, base::Unretained(this)));
 

docs/api/app.md

@@ -269,7 +269,6 @@ Adds `tasks` to the [Tasks][tasks] category of the JumpList on Windows.
   consists of two or more icons, set this value to identify the icon. If an
   icon file consists of one icon, this value is 0.
 
-
 ### `app.commandLine.appendSwitch(switch[, value])`
 
 Append a switch (with optional `value`) to Chromium's command line.

docs/api/process.md

@@ -11,3 +11,10 @@ upstream node:
 ## process.hang
 
 Causes the main thread of the current process hang.
+
+## process.setFdLimit(maxDescriptors) _OS X_ _Linux_
+
+* `maxDescriptors` Integer
+
+Sets the file descriptor soft limit to `maxDescriptors` or the OS hard
+limit, whichever is lower for the current process.