From 028b36260baa9b6baa38df86703b69adf600838a Mon Sep 17 00:00:00 2001
From: phk <phk@d4fa192b-c00b-0410-8231-f00ffab90ce4>
Date: Tue, 11 Jul 2006 18:21:06 +0000
Subject: [PATCH] Minimal ability to start and stop a varnishd

git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@438 d4fa192b-c00b-0410-8231-f00ffab90ce4
---
 .../bin/varnishtester/varnishtester.c         | 146 +++++++++++++++++-
 1 file changed, 145 insertions(+), 1 deletion(-)

diff --git a/varnish-cache/bin/varnishtester/varnishtester.c b/varnish-cache/bin/varnishtester/varnishtester.c
index 80fb4ba0..5c93ce75 100644
--- a/varnish-cache/bin/varnishtester/varnishtester.c
+++ b/varnish-cache/bin/varnishtester/varnishtester.c
@@ -1,7 +1,15 @@
 
+#include <assert.h>
 #include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <signal.h>
 
 #include "libvarnish.h"
+#include "event.h"
 
 
 /*--------------------------------------------------------------------
@@ -18,12 +26,148 @@ void cli_result(struct cli *cli, unsigned res) { (void)cli; (void)res; abort();
 
 /*--------------------------------------------------------------------*/
 
+static struct event_base *eb;
+static struct bufferevent *e_cmd;
+static struct bufferevent *e_pipe2;
+static int pipe1[2];
+static int pipe2[2];
+static pid_t child;
+
+/*--------------------------------------------------------------------*/
+
+static void
+rd_pipe2(struct bufferevent *bev, void *arg)
+{
+	char *p;
+
+	(void)arg;
+	p = evbuffer_readline(bev->input);
+	if (p == NULL)
+		return;
+	printf("V: <<%s>>\n", p);
+}
+
+static void
+ex_pipe2(struct bufferevent *bev, short what, void *arg)
+{
+	int i, status;
+
+	(void)arg;
+	printf("%s(%p, 0x%x, %p)\n", __func__, bev, what, arg);
+	bufferevent_disable(e_pipe2, EV_READ);
+
+	i = wait4(child, &status, 0, NULL);
+	printf("stopped i %d status 0x%x\n", i, status);
+	child = 0;
+	close(pipe1[1]);
+	close(pipe2[0]);
+}
+
+/*--------------------------------------------------------------------*/
+
+static void
+cmd_start(char **av)
+{
+
+	printf("%s()\n", __func__);
+	(void)av;
+	assert(pipe(pipe1) == 0);
+	assert(pipe(pipe2) == 0);
+
+	e_pipe2 = bufferevent_new(pipe2[0], rd_pipe2, NULL, ex_pipe2, NULL);
+	assert(e_pipe2 != NULL);
+	bufferevent_base_set(eb, e_pipe2);
+	bufferevent_enable(e_pipe2, EV_READ);
+
+	child = fork();
+	if (!child) {
+		dup2(pipe1[0], 0);
+		dup2(pipe2[1], 1);
+		dup2(pipe2[1], 2);
+		close(pipe1[0]);
+		close(pipe1[1]);
+		close(pipe2[0]);
+		close(pipe2[1]);
+		write(2, "Forked\n", 7);
+		assert(chdir("../varnishd") == 0);
+		execl(
+		    "./varnishd",
+		    "varnishd",
+		    "-blocalhost:8081",
+		    "-sfile,/tmp/,10m",
+		    NULL);
+		perror("execl");
+		exit (2);
+	}
+	close(pipe1[0]);
+	close(pipe2[1]);
+}
+
+
+/*--------------------------------------------------------------------*/
+
+static void
+cmd_stop(char **av)
+{
+
+	(void)av;
+	if (child == 0) {
+		fprintf(stderr, "No child running\n");
+		exit (2);
+	}
+	write(pipe1[1], "exit\r", 5);
+	/* XXX: arm timeout */
+}
+
+/*--------------------------------------------------------------------*/
+
+static void
+rd_cmd(struct bufferevent *bev, void *arg)
+{
+	char *p;
+	char **av;
+
+	(void)bev;
+	(void)arg;
+	p = evbuffer_readline(bev->input);
+	if (p == NULL)
+		return;
+	av = ParseArgv(p, 0);
+	if (av[0] != NULL) {
+		fprintf(stderr, "%s\n", av[0]);
+		exit (1);
+	}
+	if (av[1] == NULL)
+		return;
+	if (!strcmp(av[1], "start"))
+		cmd_start(av + 2);
+	else if (!strcmp(av[1], "stop"))
+		cmd_stop(av + 2);
+	else {
+		fprintf(stderr, "Unknown command \"%s\"\n", av[1]);
+		exit (2);
+	}
+	FreeArgv(av);
+}
+
+/*--------------------------------------------------------------------*/
+
 int
 main(int argc, char **argv)
 {
 
+	setbuf(stdout, NULL);
 	(void)argc;
 	(void)argv;
 
-	return (0);
+	eb = event_init();
+	assert(eb != NULL);
+
+	e_cmd = bufferevent_new(0, rd_cmd, NULL, NULL, NULL);
+	assert(e_cmd != NULL);
+	bufferevent_base_set(eb, e_cmd);
+	bufferevent_enable(e_cmd, EV_READ);
+
+	event_base_loop(eb, 0);
+	return (2);
 }
-- 
2.39.5