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| author | Eric Wong <normalperson@yhbt.net> | 2009-07-27 01:28:37 -0700 |
|---|---|---|
| committer | Eric Wong <normalperson@yhbt.net> | 2009-07-27 01:28:37 -0700 |
| commit | e9ce9e63a56dbf2afa190206625ef839a8ac3670 (patch) | |
| tree | ab7f1d169ba4c3de2cc9b8c1242c54a0e0ca0388 | |
| parent | ac095b59f07a93c20269f87d7c5995c3fcdce37a (diff) | |
| download | mall-e9ce9e63a56dbf2afa190206625ef839a8ac3670.tar.gz | |
Add Mall.dump_stats class method
This allows memory instpection without relying on (the currently unavailable) glibc or expecially any version of it.
| -rw-r--r-- | ext/mall/extconf.rb | 1 | ||||
| -rw-r--r-- | ext/mall/mall.c.erb | 11 | ||||
| -rw-r--r-- | test/test_mall.rb | 18 |
3 files changed, 30 insertions, 0 deletions
diff --git a/ext/mall/extconf.rb b/ext/mall/extconf.rb index 4b89e1e..9ba1c32 100644 --- a/ext/mall/extconf.rb +++ b/ext/mall/extconf.rb @@ -13,5 +13,6 @@ end have_header('malloc.h') or abort "malloc.h header missing" have_type('struct mallinfo', 'malloc.h') or abort 'struct mallinfo missing' have_func('malloc_trim', 'malloc.h') +have_func('malloc_stats', 'malloc.h') dir_config('mall') create_makefile('mall') diff --git a/ext/mall/mall.c.erb b/ext/mall/mall.c.erb index 59734f2..1b0a675 100644 --- a/ext/mall/mall.c.erb +++ b/ext/mall/mall.c.erb @@ -66,6 +66,14 @@ static VALUE trim(VALUE klass, VALUE pad) } #endif /* HAVE_MALLOC_TRIM */ +#ifdef HAVE_MALLOC_STATS +static VALUE dump_stats(VALUE klass) +{ + malloc_stats(); + return Qnil; +} +#endif /* HAVE_MALLOC_STATS */ + void Init_mall(void) { cMall = rb_define_class("Mall", rb_cObject); @@ -74,6 +82,9 @@ void Init_mall(void) #ifdef HAVE_MALLOC_TRIM rb_define_singleton_method(cMall, "trim", trim, 1); #endif /* HAVE_MALLOC_TRIM */ +#ifdef HAVE_MALLOC_STATS + rb_define_singleton_method(cMall, "dump_stats", dump_stats, 0); +#endif /* HAVE_MALLOC_STATS */ <% %w( mxfast nlblks grain keep diff --git a/test/test_mall.rb b/test/test_mall.rb index 91d541b..0cd8bd1 100644 --- a/test/test_mall.rb +++ b/test/test_mall.rb @@ -1,3 +1,4 @@ +require "tempfile" require "test/unit" require "mall" @@ -27,4 +28,21 @@ class TestMall < Test::Unit::TestCase end end + def test_dump_stats + if Mall.respond_to?(:dump_stats) + olderr = $stderr.dup + begin + tmp = Tempfile.new('mall_dump_stats') + $stderr.sync = tmp.sync = true + $stderr.reopen(tmp) + assert_nil Mall.dump_stats + assert tmp.stat.size != 0 + ensure + $stderr.reopen(olderr) + end + else + warn "Mall.dump_stats not supported" + end + end + end |