kotovalexarian-likes-github/ruby--ruby
1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2022-11-09 12:17:21 -05:00
Code Releases Activity

rdoc update.

Browse source 
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22607 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2009-02-24 17:18:55 +00:00
parent 42eeb2c1b1
commit 01e9a7be61
1 changed files with 8 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
file.c
View file

@ -3499,15 +3499,18 @@ rb_thread_flock(void *data)
* *
* Example: * Example:
* *
* # write lock * # update a counter using write lock
* # don't use "w" because it truncates the file before lock. * # don't use "w" because it truncates the file before lock.
* File.open("testfile", File::WRONLY|File::CREAT, 0644) {|f| * File.open("counter", File::RDWR|File::CREAT, 0644) {|f|
* f.flock(File::LOCK_EX) * f.flock(File::LOCK_EX)
* f.truncate(0) * value = f.read.to_i + 1
* f.write "new content" * f.rewind
* f.write("#{value}\n")
* f.flush
* f.truncate(f.pos)
* } * }
* *
* # read lock * # read the counter using read lock
* File.open("testfile", "r") {|f| * File.open("testfile", "r") {|f|
* f.flock(File::LOCK_SH) * f.flock(File::LOCK_SH)
* p f.read * p f.read