From 8e156f28bd5507eecba1362da3dc0dc66e76dc59 Mon Sep 17 00:00:00 2001
From: Doug MacEachern <dougm@hyperic.com>
Date: Mon, 3 Sep 2007 00:49:22 +0000
Subject: [PATCH] start ruby bindings

---
 bindings/ruby/extconf.rb |  16 +++++
 bindings/ruby/rbsigar.c  | 127 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 143 insertions(+)
 create mode 100644 bindings/ruby/extconf.rb
 create mode 100644 bindings/ruby/rbsigar.c

diff --git a/bindings/ruby/extconf.rb b/bindings/ruby/extconf.rb
new file mode 100644
index 00000000..e343d9c9
--- /dev/null
+++ b/bindings/ruby/extconf.rb
@@ -0,0 +1,16 @@
+require 'mkmf'
+
+extension_name = 'rbsigar'
+
+installdir = '../java/sigar-bin'
+#XXX hardwired for the moment
+libname = 'sigar-universal-macosx'
+
+$CPPFLAGS += ' -I' + installdir + '/include'
+$LOCAL_LIBS += '-L' + installdir + '/lib -l' + libname
+
+dir_config(extension_name)
+
+system('perl -Mlib=.. -MSigarWrapper -e generate Ruby .')
+
+create_makefile(extension_name)
diff --git a/bindings/ruby/rbsigar.c b/bindings/ruby/rbsigar.c
new file mode 100644
index 00000000..d1d42a76
--- /dev/null
+++ b/bindings/ruby/rbsigar.c
@@ -0,0 +1,127 @@
+#include <ruby.h>
+#include "sigar.h"
+#include "sigar_fileinfo.h"
+#include "sigar_format.h"
+
+#define RB_SIGAR_CROAK rb_raise(rb_eArgError, "%s", sigar_strerror(sigar, status))
+
+static sigar_t *rb_sigar_get(VALUE obj)
+{
+    sigar_t *sigar;
+    Data_Get_Struct(obj, sigar_t, sigar);
+    return sigar;
+}
+
+static void rb_sigar_free(void *obj)
+{
+    free(obj);
+}
+
+static void rb_sigar_close(void *obj)
+{
+    sigar_close((sigar_t *)obj);
+}
+
+static VALUE rb_sigar_new(VALUE module)
+{
+    sigar_t *sigar;
+    sigar_open(&sigar);
+    return Data_Wrap_Struct(module, 0, rb_sigar_close, sigar);
+}
+
+static VALUE rb_sigar_net_address_to_string(sigar_net_address_t address)
+{
+    char addr_str[SIGAR_INET6_ADDRSTRLEN];
+    sigar_net_address_to_string(NULL, &address, addr_str);
+    return rb_str_new2(addr_str);
+}
+
+static VALUE rb_sigar_new_list(char *data, unsigned long number,
+                               int size, VALUE rclass)
+{
+    unsigned long i;
+    VALUE av = rb_ary_new2(number);
+
+    for (i=0; i<number; i++, data += size) {
+        void *ent = malloc(size);
+
+        memcpy(ent, data, size);
+        rb_ary_push(av, Data_Wrap_Struct(rclass, 0, free, ent));
+    }
+
+    return av;
+}
+
+static VALUE rb_cSigarNetStat;
+
+static VALUE rb_sigar_net_stat(VALUE obj)
+{
+    return obj; /*XXX*/
+}
+
+static VALUE rb_cSigarNetConnection;
+
+static VALUE rb_sigar_net_connection(VALUE obj)
+{
+    return obj; /*XXX*/
+}
+
+static VALUE rb_cSigarCpuInfo;
+
+static VALUE rb_sigar_cpu_info(VALUE obj)
+{
+    return obj; /*XXX*/
+}
+
+static VALUE rb_cSigarFileSystem;
+
+static VALUE rb_sigar_file_system_list(VALUE obj)
+{
+    int status;
+    sigar_t *sigar = rb_sigar_get(obj);
+    sigar_file_system_list_t fslist;
+    VALUE RETVAL;
+
+    status = sigar_file_system_list_get(sigar, &fslist);
+    if (status != SIGAR_OK) {
+        RB_SIGAR_CROAK;
+    }
+
+    RETVAL = rb_sigar_new_list((char *)&fslist.data[0],
+                               fslist.number,
+                               sizeof(*fslist.data),
+                               rb_cSigarFileSystem);
+
+    sigar_file_system_list_destroy(sigar, &fslist);
+
+    return RETVAL;
+}
+
+static VALUE rb_cSigarWho;
+
+static VALUE rb_sigar_who(VALUE obj)
+{
+    return obj; /*XXX*/
+}
+
+static VALUE rb_cSigarNetRoute;
+
+static VALUE rb_sigar_net_route(VALUE obj)
+{
+    return obj; /*XXX*/
+}
+
+#include "./rbsigar_generated.rx"
+
+void Init_rbsigar(void)
+{
+    VALUE module = rb_define_module("Hyperic");
+    VALUE rclass = rb_define_class_under(module, "Sigar", rb_cObject);
+
+    rb_define_method(rclass, "file_system_list", rb_sigar_file_system_list, 0);
+
+    rb_define_singleton_method(rclass, "new", rb_sigar_new, 0);
+
+    /* generated */
+    rb_sigar_define_module_methods(rclass);
+}