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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, nxt_common_app_conf_t *conf);
static nxt_int_t nxt_go_run(nxt_task_t *task,
nxt_app_rmsg_t *rmsg, nxt_app_wmsg_t *msg);
nxt_application_module_t nxt_go_module = {
0,
NULL,
nxt_string("go"),
nxt_string("go"),
nxt_go_init,
nxt_go_run,
NULL,
};
extern char **environ;
nxt_inline nxt_int_t
nxt_go_fd_no_cloexec(nxt_task_t *task, nxt_socket_t fd)
{
int res, flags;
if (fd == -1) {
return NXT_OK;
}
flags = fcntl(fd, F_GETFD);
if (nxt_slow_path(flags == -1)) {
nxt_log(task, NXT_LOG_CRIT, "fcntl(%d, F_GETFD) failed %E",
fd, nxt_errno);
return NXT_ERROR;
}
flags &= ~FD_CLOEXEC;
res = fcntl(fd, F_SETFD, flags);
if (nxt_slow_path(res == -1)) {
nxt_log(task, NXT_LOG_CRIT, "fcntl(%d, F_SETFD) failed %E",
fd, nxt_errno);
return NXT_ERROR;
}
return NXT_OK;
}
static nxt_int_t
nxt_go_init(nxt_task_t *task, nxt_common_app_conf_t *conf)
{
char *argv[2];
u_char buf[256];
u_char *p, *end;
nxt_int_t rc;
nxt_port_t *my_port, *main_port;
nxt_runtime_t *rt;
nxt_go_app_conf_t *c;
rt = task->thread->runtime;
main_port = rt->port_by_type[NXT_PROCESS_MAIN];
my_port = nxt_runtime_port_find(rt, nxt_pid, 0);
if (nxt_slow_path(main_port == NULL || my_port == NULL)) {
return NXT_ERROR;
}
rc = nxt_go_fd_no_cloexec(task, main_port->pair[1]);
if (nxt_slow_path(rc != NXT_OK)) {
return NXT_ERROR;
}
rc = nxt_go_fd_no_cloexec(task, my_port->pair[0]);
if (nxt_slow_path(rc != NXT_OK)) {
return NXT_ERROR;
}
end = buf + sizeof(buf);
p = nxt_sprintf(buf, end,
"%s;%uD;"
"%PI,%ud,%d,%d,%d;"
"%PI,%ud,%d,%d,%d%Z",
NXT_VERSION, my_port->process->init->stream,
main_port->pid, main_port->id, (int) main_port->type,
-1, main_port->pair[1],
my_port->pid, my_port->id, (int) my_port->type,
my_port->pair[0], -1);
if (nxt_slow_path(p == end)) {
nxt_log(task, NXT_LOG_ALERT,
"internal error: buffer too small for NXT_GO_PORTS");
return NXT_ERROR;
}
nxt_debug(task, "update NXT_GO_PORTS=%s", buf);
rc = setenv("NXT_GO_PORTS", (char *) buf, 1);
if (nxt_slow_path(rc == -1)) {
nxt_log(task, NXT_LOG_CRIT, "setenv(NXT_GO_PORTS, %s) failed %E",
buf, nxt_errno);
return NXT_ERROR;
}
c = &conf->u.go;
argv[0] = c->executable;
argv[1] = NULL;
(void) execve(c->executable, argv, environ);
nxt_log(task, NXT_LOG_CRIT, "execve(%s) failed %E",
c->executable, nxt_errno);
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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