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/*
* Copyright (C) NGINX, Inc.
*/
#include <nxt_unit.h>
#include <nxt_unit_request.h>
//#include <nxt_clang.h>
#include <pthread.h>
#include <string.h>
#include <stdlib.h>
#define nxt_expect(c, x) __builtin_expect((long) (x), (c))
#define nxt_fast_path(x) nxt_expect(1, x)
#define nxt_slow_path(x) nxt_expect(0, x)
#define nxt_length(s) (sizeof(s) - 1)
#define CONTENT_TYPE "Content-Type"
#define TEXT_PLAIN "text/plain"
#define HELLO_WORLD "Hello world!\n"
#define NEW_LINE "\n"
#define REQUEST_DATA "Request data:\n"
#define METHOD " Method: "
#define PROTOCOL " Protocol: "
#define REMOTE_ADDR " Remote addr: "
#define LOCAL_ADDR " Local addr: "
#define TARGET " Target: "
#define PATH " Path: "
#define QUERY " Query: "
#define FIELDS " Fields:\n"
#define FIELD_PAD " "
#define FIELD_SEP ": "
#define BODY " Body:\n"
static int ready_handler(nxt_unit_ctx_t *ctx);
static void *worker(void *main_ctx);
static void greeting_app_request_handler(nxt_unit_request_info_t *req);
static int thread_count;
static pthread_t *threads;
int
main(int argc, char **argv)
{
int i, err;
nxt_unit_ctx_t *ctx;
nxt_unit_init_t init;
if (argc == 3 && strcmp(argv[1], "-t") == 0) {
thread_count = atoi(argv[2]);
}
memset(&init, 0, sizeof(nxt_unit_init_t));
init.callbacks.request_handler = greeting_app_request_handler;
init.callbacks.ready_handler = ready_handler;
ctx = nxt_unit_init(&init);
if (ctx == NULL) {
return 1;
}
err = nxt_unit_run(ctx);
nxt_unit_debug(ctx, "main worker finished with %d code", err);
if (thread_count > 1) {
for (i = 0; i < thread_count - 1; i++) {
err = pthread_join(threads[i], NULL);
if (nxt_fast_path(err == 0)) {
nxt_unit_debug(ctx, "join thread #%d", i);
} else {
nxt_unit_alert(ctx, "pthread_join(#%d) failed: %s (%d)",
i, strerror(err), err);
}
}
nxt_unit_free(ctx, threads);
}
nxt_unit_done(ctx);
nxt_unit_debug(NULL, "main worker done");
return 0;
}
static int
ready_handler(nxt_unit_ctx_t *ctx)
{
int i, err;
nxt_unit_debug(ctx, "ready");
if (thread_count <= 1) {
return NXT_UNIT_OK;
}
threads = nxt_unit_malloc(ctx, sizeof(pthread_t) * (thread_count - 1));
if (threads == NULL) {
return NXT_UNIT_ERROR;
}
for (i = 0; i < thread_count - 1; i++) {
err = pthread_create(&threads[i], NULL, worker, ctx);
if (err != 0) {
return NXT_UNIT_ERROR;
}
}
return NXT_UNIT_OK;
}
static void *
worker(void *main_ctx)
{
int rc;
nxt_unit_ctx_t *ctx;
ctx = nxt_unit_ctx_alloc(main_ctx, NULL);
if (ctx == NULL) {
return NULL;
}
nxt_unit_debug(ctx, "start worker");
rc = nxt_unit_run(ctx);
nxt_unit_debug(ctx, "worker finished with %d code", rc);
nxt_unit_done(ctx);
return (void *) (intptr_t) rc;
}
static void
greeting_app_request_handler(nxt_unit_request_info_t *req)
{
int rc;
char *p;
ssize_t res;
uint32_t i;
nxt_unit_buf_t *buf, *buf2;
nxt_unit_field_t *f;
nxt_unit_request_t *r;
rc = nxt_unit_response_init(req, 200 /* Status code. */,
1 /* Number of response headers. */,
nxt_length(CONTENT_TYPE)
+ nxt_length(TEXT_PLAIN)
+ nxt_length(HELLO_WORLD));
if (nxt_slow_path(rc != NXT_UNIT_OK)) {
goto fail;
}
rc = nxt_unit_response_add_field(req,
CONTENT_TYPE, nxt_length(CONTENT_TYPE),
TEXT_PLAIN, nxt_length(TEXT_PLAIN));
if (nxt_slow_path(rc != NXT_UNIT_OK)) {
goto fail;
}
rc = nxt_unit_response_add_content(req, HELLO_WORLD,
nxt_length(HELLO_WORLD));
if (nxt_slow_path(rc != NXT_UNIT_OK)) {
goto fail;
}
rc = nxt_unit_response_send(req);
if (nxt_slow_path(rc != NXT_UNIT_OK)) {
goto fail;
}
r = req->request;
buf = nxt_unit_response_buf_alloc(req, (req->request_buf->end
- req->request_buf->start)
+ nxt_length(REQUEST_DATA)
+ nxt_length(METHOD)
+ nxt_length(NEW_LINE)
+ nxt_length(PROTOCOL)
+ nxt_length(NEW_LINE)
+ nxt_length(REMOTE_ADDR)
+ nxt_length(NEW_LINE)
+ nxt_length(LOCAL_ADDR)
+ nxt_length(NEW_LINE)
+ nxt_length(TARGET)
+ nxt_length(NEW_LINE)
+ nxt_length(PATH)
+ nxt_length(NEW_LINE)
+ nxt_length(QUERY)
+ nxt_length(NEW_LINE)
+ nxt_length(FIELDS)
+ r->fields_count * (
nxt_length(FIELD_PAD)
+ nxt_length(FIELD_SEP))
+ nxt_length(BODY));
if (nxt_slow_path(buf == NULL)) {
rc = NXT_UNIT_ERROR;
goto fail;
}
p = buf->free;
p = mempcpy(p, REQUEST_DATA, nxt_length(REQUEST_DATA));
p = mempcpy(p, METHOD, nxt_length(METHOD));
p = mempcpy(p, nxt_unit_sptr_get(&r->method), r->method_length);
*p++ = '\n';
p = mempcpy(p, PROTOCOL, nxt_length(PROTOCOL));
p = mempcpy(p, nxt_unit_sptr_get(&r->version), r->version_length);
*p++ = '\n';
p = mempcpy(p, REMOTE_ADDR, nxt_length(REMOTE_ADDR));
p = mempcpy(p, nxt_unit_sptr_get(&r->remote), r->remote_length);
*p++ = '\n';
p = mempcpy(p, LOCAL_ADDR, nxt_length(LOCAL_ADDR));
p = mempcpy(p, nxt_unit_sptr_get(&r->local_addr), r->local_addr_length);
*p++ = '\n';
p = mempcpy(p, TARGET, nxt_length(TARGET));
p = mempcpy(p, nxt_unit_sptr_get(&r->target), r->target_length);
*p++ = '\n';
p = mempcpy(p, PATH, nxt_length(PATH));
p = mempcpy(p, nxt_unit_sptr_get(&r->path), r->path_length);
*p++ = '\n';
if (r->query.offset) {
p = mempcpy(p, QUERY, nxt_length(QUERY));
p = mempcpy(p, nxt_unit_sptr_get(&r->query), r->query_length);
*p++ = '\n';
}
p = mempcpy(p, FIELDS, nxt_length(FIELDS));
for (i = 0; i < r->fields_count; i++) {
f = r->fields + i;
p = mempcpy(p, FIELD_PAD, nxt_length(FIELD_PAD));
p = mempcpy(p, nxt_unit_sptr_get(&f->name), f->name_length);
p = mempcpy(p, FIELD_SEP, nxt_length(FIELD_SEP));
p = mempcpy(p, nxt_unit_sptr_get(&f->value), f->value_length);
*p++ = '\n';
}
if (r->content_length > 0) {
p = mempcpy(p, BODY, nxt_length(BODY));
res = nxt_unit_request_read(req, buf->free, buf->end - buf->free);
buf->free += res;
}
buf->free = p;
rc = nxt_unit_buf_send(buf);
if (nxt_slow_path(rc != NXT_UNIT_OK)) {
goto fail;
}
buf = nxt_unit_response_buf_alloc(req, strlen("Some extra contents.\n"));
if (nxt_slow_path(buf == NULL)) {
rc = NXT_UNIT_ERROR;
goto fail;
}
buf2 = nxt_unit_response_buf_alloc(req, strlen("But send this first.\n"));
if (nxt_slow_path(buf2 == NULL)) {
rc = NXT_UNIT_ERROR;
goto fail;
}
buf2->free = mempcpy(buf2->free, "But send this first.\n",
strlen("But send this first.\n"));
buf->free = mempcpy(buf->free, "Some extra contents.\n",
strlen("Some extra contents.\n"));
rc = nxt_unit_buf_send(buf2);
if (nxt_slow_path(rc != NXT_UNIT_OK)) {
goto fail;
}
rc = nxt_unit_buf_send(buf);
if (nxt_slow_path(rc != NXT_UNIT_OK)) {
goto fail;
}
rc = nxt_unit_response_write(req, "And some more\n",
strlen("And some more\n"));
if (nxt_slow_path(rc != 0)) {
goto fail;
}
fail:
nxt_unit_request_done(req, rc);
}
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