path: root/ext/dl
diff options
Diffstat (limited to 'ext/dl')
1 files changed, 7 insertions, 2 deletions
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",
- val = # allocate the memory.
+ val = LIBC::Timeval.alloc # allocate the memory.
+The above example uses LIBC::Timeval.alloc, since we use
+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
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,