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/*
* Copyright (C) Max Romanov
* Copyright (C) NGINX, Inc.
*/
#include <nxt_main.h>
#include <nxt_application.h>
static nxt_int_t nxt_go_init(nxt_task_t *task);
static nxt_int_t nxt_go_prepare_msg(nxt_task_t *task,
nxt_app_request_t *r, nxt_app_wmsg_t *msg);
static nxt_int_t nxt_go_run(nxt_task_t *task,
nxt_app_rmsg_t *rmsg, nxt_app_wmsg_t *msg);
static nxt_str_t nxt_go_path;
nxt_application_module_t nxt_go_module = {
nxt_go_init,
nxt_go_prepare_msg,
nxt_go_run
};
nxt_int_t
nxt_go_module_init(nxt_thread_t *thr, nxt_runtime_t *rt);
nxt_int_t
nxt_go_module_init(nxt_thread_t *thr, nxt_runtime_t *rt)
{
char **argv;
u_char *p;
argv = nxt_process_argv;
while (*argv != NULL) {
p = (u_char *) *argv++;
if (nxt_strcmp(p, "--go") == 0) {
if (*argv == NULL) {
nxt_log_error(NXT_LOG_ERR, thr->log,
"no argument for option \"--go\"");
return NXT_ERROR;
}
p = (u_char *) *argv;
nxt_go_path.start = p;
nxt_go_path.length = nxt_strlen(p);
nxt_log_error(NXT_LOG_INFO, thr->log,
"go program \"%V\"",
&nxt_go_path);
nxt_app = &nxt_go_module;
return NXT_OK;
}
}
nxt_log_error(NXT_LOG_ERR, thr->log, "no option \"--go\" specified");
return NXT_ERROR;
}
extern char **environ;
nxt_inline int
nxt_sock_no_cloexec(nxt_socket_t fd)
{
if (fd == -1) {
return 0;
}
return fcntl(fd, F_SETFD, 0);
}
static nxt_int_t
nxt_go_init(nxt_task_t *task)
{
char *go_ports = getenv("NXT_GO_PORTS");
nxt_debug(task, "initialize go app, NXT_GO_PORTS=%s",
go_ports ? go_ports : "NULL");
if (go_ports == NULL) {
u_char buf[256];
u_char *p = buf;
nxt_runtime_t *rt = task->thread->runtime;
nxt_port_t *port;
nxt_runtime_port_each(rt, port) {
nxt_debug(task, "port %PI, %ud, (%d, %d)", port->pid, port->id,
port->pair[0], port->pair[1]);
p = nxt_sprintf(p, buf + sizeof(buf), "%PI,%ud,%d,%d,%d;",
port->pid, port->id, (int)port->type,
port->pair[0], port->pair[1]);
if (nxt_slow_path(nxt_sock_no_cloexec(port->pair[0]))) {
nxt_log(task, NXT_LOG_WARN, "fcntl() failed %E", nxt_errno);
}
if (nxt_slow_path(nxt_sock_no_cloexec(port->pair[1]))) {
nxt_log(task, NXT_LOG_WARN, "fcntl() failed %E", nxt_errno);
}
} nxt_runtime_port_loop;
*p = '\0';
nxt_debug(task, "update NXT_GO_PORTS=%s", buf);
setenv("NXT_GO_PORTS", (char *)buf, 1);
char *argv[] = {
(char *)nxt_go_path.start,
(char *)"--no-daemonize",
(char *)"--app", NULL };
(void) execve((char *)nxt_go_path.start, argv, environ);
nxt_log(task, NXT_LOG_WARN, "execve(%V) failed %E", &nxt_go_path,
nxt_errno);
return NXT_ERROR;
}
return NXT_OK;
}
static nxt_int_t
nxt_go_prepare_msg(nxt_task_t *task, nxt_app_request_t *r, nxt_app_wmsg_t *wmsg)
{
nxt_int_t rc;
nxt_http_field_t *field;
nxt_app_request_header_t *h;
static const nxt_str_t eof = nxt_null_string;
h = &r->header;
#define RC(S) \
do { \
rc = (S); \
if (nxt_slow_path(rc != NXT_OK)) { \
goto fail; \
} \
} while(0)
#define NXT_WRITE(N) \
RC(nxt_app_msg_write_str(task, wmsg, N))
/* TODO error handle, async mmap buffer assignment */
NXT_WRITE(&h->method);
NXT_WRITE(&h->path);
if (h->query.start != NULL) {
RC(nxt_app_msg_write_size(task, wmsg,
h->query.start - h->path.start + 1));
} else {
RC(nxt_app_msg_write_size(task, wmsg, 0));
}
NXT_WRITE(&h->version);
NXT_WRITE(&h->host);
NXT_WRITE(&h->cookie);
NXT_WRITE(&h->content_type);
NXT_WRITE(&h->content_length);
RC(nxt_app_msg_write_size(task, wmsg, h->parsed_content_length));
nxt_list_each(field, h->fields) {
NXT_WRITE(&field->name);
NXT_WRITE(&field->value);
} nxt_list_loop;
/* end-of-headers mark */
NXT_WRITE(&eof);
NXT_WRITE(&r->body.preread);
#undef NXT_WRITE
#undef RC
return NXT_OK;
fail:
return NXT_ERROR;
}
static nxt_int_t
nxt_go_run(nxt_task_t *task,
nxt_app_rmsg_t *rmsg, nxt_app_wmsg_t *msg)
{
return NXT_ERROR;
}
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