[api] Add API for retreiving the process info

src/api/pipy.cpp

@@ -29,6 +29,7 @@
 #include "context.hpp"
 #include "worker.hpp"
 #include "worker-thread.hpp"
+#include "status.hpp"
 #include "net.hpp"
 #include "outbound.hpp"
 #include "utils.hpp"
@@ -147,6 +148,32 @@ template<> void ClassDef<Pipy>::init() {
 
   variable("outbound", class_of<Pipy::Outbound>());
 
+  accessor("pid", [](Object *, Value &ret) {
+    ret.set((int)getpid());
+  });
+
+  accessor("since", [](Object *, Value &ret) {
+    ret.set(Status::LocalInstance::since);
+  });
+
+  accessor("source", [](Object *, Value &ret) {
+    thread_local static pjs::Ref<pjs::Str> str;
+    if (!str) str = pjs::Str::make(Status::LocalInstance::source);
+    ret.set(str);
+  });
+
+  accessor("name", [](Object *, Value &ret) {
+    thread_local static pjs::Ref<pjs::Str> str;
+    if (!str) str = pjs::Str::make(Status::LocalInstance::name);
+    ret.set(str);
+  });
+
+  accessor("uuid", [](Object *, Value &ret) {
+    thread_local static pjs::Ref<pjs::Str> str;
+    if (!str) str = pjs::Str::make(Status::LocalInstance::uuid);
+    ret.set(str);
+  });
+
   method("load", [](Context &ctx, Object*, Value &ret) {
     std::string filename;
     if (!ctx.arguments(1, &filename)) return;

src/main.cpp

@@ -384,6 +384,7 @@ int main(int argc, char *argv[]) {
     }
 
     Status::LocalInstance::since = utils::now();
+    Status::LocalInstance::source = opts.filename;
     Status::LocalInstance::name = opts.instance_name;
 
     if (opts.instance_uuid.empty()) {

src/status.cpp

@@ -48,6 +48,7 @@
 namespace pipy {
 
 double Status::LocalInstance::since;
+std::string Status::LocalInstance::source;
 std::string Status::LocalInstance::uuid;
 std::string Status::LocalInstance::name;
 

src/status.hpp

@@ -46,6 +46,7 @@ class Status {
 
   struct LocalInstance {
     static double since;
+    static std::string source;
     static std::string uuid;
     static std::string name;
   };