External Go app request processing.

1 files changed, 127 insertions, 0 deletions

diff --git a/src/nginext/nginext.go b/src/nginext/nginext.go
new file mode 100644
index 00000000..2bde80a6
--- /dev/null
+++ b/src/nginext/nginext.go
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) Max Romanov
+ * Copyright (C) NGINX, Inc.
+ */
+
+package nginext
+
+/*
+#include "nxt_go_lib.h"
+*/
+import "C"
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+	"unsafe"
+)
+
+type cbuf struct {
+	b unsafe.Pointer
+	s C.size_t
+	f bool
+}
+
+func new_cbuf(buf []byte) *cbuf {
+	if len(buf) == 0 {
+		return nil
+	}
+
+	return &cbuf{
+		getCBytes(buf), C.size_t(len(buf)), true,
+	}
+}
+
+func (buf *cbuf) Close() {
+	if buf == nil {
+		return
+	}
+
+	if buf.f && buf.s > 0 {
+		C.free(buf.b)
+		buf.f = false
+		buf.b = nil
+		buf.s = 0
+	}
+}
+
+func (buf *cbuf) GoBytes() []byte {
+	if buf == nil {
+		var b [0]byte
+		return b[:0]
+	}
+
+	return C.GoBytes(buf.b, C.int(buf.s))
+}
+
+type cmsg struct {
+	buf cbuf
+	oob cbuf
+}
+
+func new_cmsg(buf []byte, oob []byte) *cmsg {
+	return &cmsg{
+		buf: cbuf{getCBytes(buf), C.size_t(len(buf)), true},
+		oob: cbuf{getCBytes(oob), C.size_t(len(oob)), true},
+	}
+}
+
+func (msg *cmsg) Close() {
+	msg.buf.Close()
+	msg.oob.Close()
+}
+
+var nxt_go_quit bool = false
+
+//export nxt_go_set_quit
+func nxt_go_set_quit() {
+	nxt_go_quit = true
+}
+
+func ListenAndServe() {
+	var read_port *port
+
+	go_ports_env := os.Getenv("NXT_GO_PORTS")
+	fmt.Printf("NXT_GO_PORTS = %s\n", go_ports_env)
+
+	ports := strings.Split(go_ports_env, ";")
+	pid := os.Getpid()
+
+	for _, port_str := range ports {
+		if len(port_str) <= 0 {
+			continue
+		}
+
+		attrs := strings.Split(port_str, ",")
+		fmt.Printf("Port = %q\n", attrs)
+
+		var attrsN [5]int
+		var err error
+		for i, attr := range attrs {
+			attrsN[i], err = strconv.Atoi(attr)
+			if err != nil {
+				fmt.Printf("err %s\n", err)
+				break
+			}
+		}
+
+		if err != nil {
+			continue
+		}
+
+		p := new_port(attrsN[0], attrsN[1], attrsN[2], attrsN[3], attrsN[4])
+
+		if attrsN[0] == pid {
+			read_port = p
+		}
+	}
+
+	if read_port != nil {
+		for !nxt_go_quit {
+			read_port.read()
+		}
+	}
+
+}