Mike Bourgeous mike-bourgeous

## 00info.md

      
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                mike-bourgeous
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              Created
              September 13, 2019 00:45
            
              
                SIGSEGV from JRuby and jnr-ffi / jnr-posix / jnr-enxio on Java 11
              
          
jnr/jnr-ffi#194
jruby/jruby#4506


## Basic_ruby_oracle_demo.rb
#!/usr/bin/env ruby
# Simplified demo showing the use of the Sequel gem, raw OCI8 connection, and
# ruby_plsql gem on a single connection.  Uses undocumented yield behavior from
# Sequel, so might not work with different Sequel versions.
# by Mike Bourgeous

# These must be set before requiring oci8
ENV['NLS_LANG'] = 'american_america.utf8'
ENV['TNS_ADMIN'] = File.expand_path(File.dirname(__FILE__))

## popen3_2007.c
/*
 * This implementation of popen3() was created in 2007 for an experimental
 * mpg123 frontend and is based on a popen2() snippet found online.  This
 * implementation may behave in unexpected ways if stdin/stdout/stderr have
 * been closed or modified.  No warranty of its correctness, security, or
 * usability is given.  My modifications are released into the public domain,
 * but if used in an open source application, attribution would be appreciated.
 *
 * Mike Bourgeous
 * https://github.com/mike-bourgeous

## standalone_readpixels.c
/*
 * Minimal Linux- and GLX-specific example of using a pool of Pixel Buffer
 * Objects to stream pixel data.
 *
 * This is a minimal test case for opening an OpenGL window with raw
 * X11/Xlib/GLX, drawing a simple test image, and fast PBO-based streaming of
 * image data to disk with glReadPixels().
 *
 * On an NVidia RTX2080 Super, on Ubuntu 20.04, saving to an SSD, this sustains
 * 150+fps (peaking at 500+, hitting 900+ if only writing a single file instead
	#!/usr/bin/env ruby
	# Simplified demo showing the use of the Sequel gem, raw OCI8 connection, and
	# ruby_plsql gem on a single connection. Uses undocumented yield behavior from
	# Sequel, so might not work with different Sequel versions.
	# by Mike Bourgeous

	# These must be set before requiring oci8
	ENV['NLS_LANG'] = 'american_america.utf8'
	ENV['TNS_ADMIN'] = File.expand_path(File.dirname(__FILE__))
	/*
	* This implementation of popen3() was created in 2007 for an experimental
	* mpg123 frontend and is based on a popen2() snippet found online. This
	* implementation may behave in unexpected ways if stdin/stdout/stderr have
	* been closed or modified. No warranty of its correctness, security, or
	* usability is given. My modifications are released into the public domain,
	* but if used in an open source application, attribution would be appreciated.
	*
	* Mike Bourgeous
	* https://github.com/mike-bourgeous
	/*
	* Minimal Linux- and GLX-specific example of using a pool of Pixel Buffer
	* Objects to stream pixel data.
	*
	* This is a minimal test case for opening an OpenGL window with raw
	* X11/Xlib/GLX, drawing a simple test image, and fast PBO-based streaming of
	* image data to disk with glReadPixels().
	*
	* On an NVidia RTX2080 Super, on Ubuntu 20.04, saving to an SSD, this sustains
	* 150+fps (peaking at 500+, hitting 900+ if only writing a single file instead