### Home Classes Methods

### In Files

- lib/phusion_passenger/ruby_core_enhancements.rb

### Parent

Object

### Methods

- #close_on_exec!
- #writev
- #writev2
- #writev3

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No matching classes.

# IO

### Public Instance Methods

close_on_exec!() click to toggle source

    # File lib/phusion_passenger/ruby_core_enhancements.rb, line 125
    def close_on_exec!
            self.close_on_exec = true
    end

writev(components) click to toggle source

Writes all of the strings in the `components` array into the given file descriptor using the +writev()+ system call. Unlike IO#write, this method does not require one to concatenate all those strings into a single buffer in order to send the data in a single system call. Thus, writev is a great way to perform zero-copy I/O.

Unlike the raw writev() system call, this method ensures that all given data is written before returning, by performing multiple writev() calls and whatever else is necessary.

    io.writev(["hello ", "world", "\n"])

    # File lib/phusion_passenger/ruby_core_enhancements.rb, line 72
    def writev(components)
            return PhusionPassenger::NativeSupport.writev(fileno, components)
    end

writev2(components, components2) click to toggle source

Like writev, but accepts two arrays. The data is written in the given order.

    io.writev2(["hello ", "world", "\n"], ["another ", "message\n"])

    # File lib/phusion_passenger/ruby_core_enhancements.rb, line 79
    def writev2(components, components2)
            return PhusionPassenger::NativeSupport.writev2(fileno,
                    components, components2)
    end

writev3(components, components2, components3) click to toggle source

Like writev, but accepts three arrays. The data is written in the given order.

    io.writev3(["hello ", "world", "\n"],
      ["another ", "message\n"],
      ["yet ", "another ", "one", "\n"])

    # File lib/phusion_passenger/ruby_core_enhancements.rb, line 89
    def writev3(components, components2, components3)
            return PhusionPassenger::NativeSupport.writev3(fileno,
                    components, components2, components3)
    end

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