From 66484faf1b48ac523628597e77a7758382a1764a Mon Sep 17 00:00:00 2001 From: ttate Date: Sun, 14 Apr 2002 15:21:23 +0000 Subject: Edit the documentation. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2373 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ext/dl/doc/dl.txt | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'ext/dl/doc/dl.txt') diff --git a/ext/dl/doc/dl.txt b/ext/dl/doc/dl.txt index 88c8b2d776..c71de5179c 100644 --- a/ext/dl/doc/dl.txt +++ b/ext/dl/doc/dl.txt @@ -47,12 +47,17 @@ struct and union which are defined in dl/struct.rb as follows: require "dl/struct" module LIBC extend DL::Importable - Timeval = struct [ # define the timeval structure. + Timeval = struct [ # define the timeval structure. "long tv_sec", "long tv_uses", ] end - val = LIBC::Timeval.new # allocate the memory. + val = LIBC::Timeval.alloc # allocate the memory. + +The above example uses LIBC::Timeval.alloc, since we use LIBC::Timeval.new(ptr) +to wrap the given PtrData object which is, for example, created by DL::malloc(). +DL::malloc() is a function to allocate a memory by using the C library function +malloc(). DL::Importable module is very useful. However, we sometimes encounter a case that we must directly use low-level functions such as dlsym(). In such case, -- cgit v1.2.3