/
main.cc
1105 lines (1016 loc) · 26.9 KB
/
main.cc
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/*
* Copyright 2010-2016, Tarantool AUTHORS, please see AUTHORS file.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* <COPYRIGHT HOLDER> OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "main.h"
#include "trivia/config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <grp.h>
#include <getopt.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <sys/resource.h>
#include <pwd.h>
#include <unistd.h>
#include <getopt.h>
#include <locale.h>
#include <libgen.h>
#include <sysexits.h>
#if TARGET_OS_LINUX && defined(HAVE_PRCTL_H)
# include <sys/prctl.h>
#endif
#include "fiber.h"
#include "cbus.h"
#include "coio_task.h"
#include <crc32.h>
#include "memory.h"
#include <say.h>
#include <rmean.h>
#include <limits.h>
#include "coll/coll.h"
#include "trivia/util.h"
#include "backtrace.h"
#include "tt_pthread.h"
#include "tt_strerror.h"
#include "lua/init.h"
#include "box/flightrec.h"
#include "box/box.h"
#include "box/error.h"
#include "small/small_features.h"
#include "scoped_guard.h"
#include "random.h"
#include "cfg.h"
#include "version.h"
#include <readline/readline.h>
#include "title.h"
#include <libutil.h>
#include "box/lua/init.h" /* box_lua_init() */
#include "box/lua/console.h"
#include "box/session.h"
#include "box/memtx_tx.h"
#include "box/module_cache.h"
#include "box/watcher.h"
#include "systemd.h"
#include "core/ssl.h"
#include "core/popen.h"
#include "core/crash.h"
#include "ssl_cert_paths_discover.h"
#include "core/errinj.h"
#include "core/clock_lowres.h"
#include "lua/utils.h"
#include "core/event.h"
#include "on_shutdown.h"
static pid_t master_pid = getpid();
static struct pidfh *pid_file_handle;
static char *script = NULL;
static char *pid_file = NULL;
static char **main_argv;
static int main_argc;
/** Signals handled after start as part of the event loop. */
static ev_signal ev_sigs[5];
static const int ev_sig_count = sizeof(ev_sigs)/sizeof(*ev_sigs);
static double start_time;
/** A preallocated fiber to run on_shutdown triggers. */
static struct fiber *on_shutdown_fiber = NULL;
/** A flag restricting repeated execution of tarantool_exit(). */
static bool shutdown_started = false;
static bool shutdown_finished = false;
static int exit_code = 0;
char tarantool_path[PATH_MAX];
/**
* We need to keep clock data locally to report uptime without binding
* to libev and etc. Because we're reporting information at the moment
* when crash happens and we are to be independent as much as we can.
*/
long tarantool_start_time;
double
tarantool_uptime(void)
{
return ev_monotonic_now(loop()) - start_time;
}
static void
signal_checkpoint(ev_loop *loop, struct ev_signal *w, int revents)
{
(void)loop;
(void)w;
(void)revents;
say_info("got signal SIGUSR1, triggering checkpoint");
box_checkpoint_async();
}
static int
on_shutdown_f(va_list ap)
{
(void) ap;
/*
* If event loop is not running, that means that on_shutdown_f was
* called from the end of main. Return control back to main, which
* will start an event loop and reschedule this fiber.
*/
if (ev_depth(loop()) == 0)
fiber_sleep(0.0);
/* Handle spurious wakeups. */
while (!shutdown_started)
fiber_yield();
if (on_shutdown_run_triggers() != 0) {
say_error("on_shutdown triggers failed");
diag_log();
diag_clear(diag_get());
}
box_shutdown();
shutdown_finished = true;
ev_break(loop(), EVBREAK_ALL);
return 0;
}
void
tarantool_exit(int code)
{
start_loop = false;
if (shutdown_started) {
/*
* We are already running on_shutdown triggers,
* and will exit as soon as they'll finish.
* Do not execute them twice.
*/
return;
}
shutdown_started = true;
exit_code = code;
box_broadcast_fmt("box.shutdown", "%b", true);
fiber_wakeup(on_shutdown_fiber);
}
static void
signal_cb(ev_loop *loop, struct ev_signal *w, int revents)
{
(void) loop;
(void) w;
(void) revents;
/**
* If running in daemon mode, complain about possibly
* sudden and unexpected death.
* Real case: an ops A kills the server and ops B files
* a bug that the server suddenly died. Make such case
* explicit in the log.
*/
if (pid_file)
say_crit("got signal %d - %s", w->signum, strsignal(w->signum));
tarantool_exit(0);
}
/*
* Handle SIGINT like SIGTERM by default, but allow to overwrite the behavior.
* Used by console.
*/
static sigint_cb_t signal_sigint_cb = signal_cb;
sigint_cb_t
set_sigint_cb(sigint_cb_t new_sigint_cb)
{
sigint_cb_t old_cb = signal_sigint_cb;
ev_set_cb(&ev_sigs[1], new_sigint_cb);
return old_cb;
}
static void
signal_sigwinch_cb(ev_loop *loop, struct ev_signal *w, int revents)
{
(void) loop;
(void) w;
(void) revents;
if (rl_instream)
rl_resize_terminal();
}
static void
signal_free(void)
{
int i;
for (i = 0; i < ev_sig_count; i++)
ev_signal_stop(loop(), &ev_sigs[i]);
}
/** Make sure the child has a default signal disposition. */
static void
signal_reset(void)
{
for (int i = 0; i < ev_sig_count; i++)
ev_signal_stop(loop(), &ev_sigs[i]);
struct sigaction sa;
/* Reset all signals to their defaults. */
memset(&sa, 0, sizeof(sa));
sigemptyset(&sa.sa_mask);
sa.sa_handler = SIG_DFL;
if (sigaction(SIGUSR1, &sa, NULL) == -1 ||
sigaction(SIGINT, &sa, NULL) == -1 ||
sigaction(SIGTERM, &sa, NULL) == -1 ||
sigaction(SIGHUP, &sa, NULL) == -1 ||
sigaction(SIGWINCH, &sa, NULL) == -1)
say_syserror("sigaction");
fiber_signal_reset();
crash_signal_reset();
/* Unblock any signals blocked by libev. */
sigset_t sigset;
sigfillset(&sigset);
if (pthread_sigmask(SIG_UNBLOCK, &sigset, NULL) == -1)
say_syserror("pthread_sigmask");
}
/**
* Adjust the process signal mask and add handlers for signals.
*/
static void
signal_init(void)
{
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = SIG_IGN;
sigemptyset(&sa.sa_mask);
if (sigaction(SIGPIPE, &sa, 0) == -1)
panic_syserror("sigaction");
fiber_signal_init();
crash_signal_init();
ev_signal_init(&ev_sigs[0], signal_checkpoint, SIGUSR1);
ev_signal_init(&ev_sigs[1], signal_sigint_cb, SIGINT);
ev_signal_init(&ev_sigs[2], signal_cb, SIGTERM);
ev_signal_init(&ev_sigs[3], signal_sigwinch_cb, SIGWINCH);
ev_signal_init(&ev_sigs[4], say_logrotate, SIGHUP);
for (int i = 0; i < ev_sig_count; i++)
ev_signal_start(loop(), &ev_sigs[i]);
tt_pthread_atfork(NULL, NULL, signal_reset);
}
/** Run in the background. */
static void
daemonize(void)
{
pid_t pid;
int fd;
/* flush buffers to avoid multiple output */
/* https://github.com/tarantool/tarantool/issues/366 */
fflush(stdin);
fflush(stdout);
fflush(stderr);
pid = fork();
switch (pid) {
case -1:
goto error;
case 0: /* child */
master_pid = getpid();
break;
default: /* parent */
/* Tell systemd about new main program using */
errno = 0;
master_pid = pid;
exit(EXIT_SUCCESS);
}
if (setsid() == -1)
goto error;
/*
* tell libev we've just forked, this is necessary to re-initialize
* kqueue on FreeBSD.
*/
ev_loop_fork(cord()->loop);
/*
* reinit signals after fork, because fork() implicitly calls
* signal_reset() via pthread_atfork() hook installed by signal_init().
*/
signal_init();
/* redirect stdin; stdout and stderr handled in say_logger_init */
fd = open("/dev/null", O_RDONLY);
if (fd < 0)
goto error;
dup2(fd, STDIN_FILENO);
close(fd);
return;
error:
exit(EXIT_FAILURE);
}
extern "C" void
load_cfg(void)
{
const char *work_dir = cfg_gets("work_dir");
if (work_dir != NULL && chdir(work_dir) == -1)
panic_syserror("can't chdir to `%s'", work_dir);
const char *username = cfg_gets("username");
if (username != NULL) {
if (getuid() == 0 || geteuid() == 0) {
struct passwd *pw;
errno = 0;
if ((pw = getpwnam(username)) == 0) {
if (errno) {
say_syserror("getpwnam: %s",
username);
} else {
say_error("User not found: %s",
username);
}
exit(EX_NOUSER);
}
if (setgid(pw->pw_gid) < 0 || setgroups(0, NULL) < 0 ||
setuid(pw->pw_uid) < 0 || seteuid(pw->pw_uid)) {
say_syserror("setgid/setuid");
exit(EX_OSERR);
}
} else {
say_error("can't switch to %s: i'm not root",
username);
}
}
if (cfg_geti("coredump")) {
struct rlimit c = { 0, 0 };
if (getrlimit(RLIMIT_CORE, &c) < 0) {
say_syserror("getrlimit");
exit(EX_OSERR);
}
c.rlim_cur = c.rlim_max;
if (setrlimit(RLIMIT_CORE, &c) < 0) {
say_syserror("setrlimit");
exit(EX_OSERR);
}
#if TARGET_OS_LINUX && defined(HAVE_PRCTL_H)
if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) < 0) {
say_syserror("prctl");
exit(EX_OSERR);
}
#endif
}
/*
* If we're requested to strip coredump
* make sure we can do that, otherwise
* require user to not turn it on.
*/
if (cfg_geti("strip_core")) {
if (!small_test_feature(SMALL_FEATURE_DONTDUMP)) {
static const char strip_msg[] =
"'strip_core' is set but unsupported";
#if TARGET_OS_LINUX
/*
* Linux is known to support madvise(DONT_DUMP)
* feature, thus warn on this platform only. The
* rest should be notified on verbose level only
* to not spam a user.
*/
say_warn(strip_msg);
#else
say_verbose(strip_msg);
#endif
}
}
int background = cfg_geti("background");
const char *log = cfg_gets("log");
pid_file = (char *)cfg_gets("pid_file");
if (pid_file != NULL) {
pid_file = abspath(pid_file);
if (pid_file == NULL)
panic("out of memory");
}
if (background) {
if (log == NULL) {
say_crit(
"'background' requires "
"'log' configuration option to be set");
exit(EXIT_FAILURE);
}
if (pid_file == NULL) {
say_crit(
"'background' requires "
"'pid_file' configuration option to be set");
exit(EXIT_FAILURE);
}
}
/*
* pid file check must happen before logger init in order for the
* error message to show in stderr
*/
if (pid_file != NULL) {
pid_t other_pid = -1;
pid_file_handle = pidfile_open(pid_file, 0644, &other_pid);
if (pid_file_handle == NULL) {
if (errno == EEXIST) {
say_crit(
"the daemon is already running: PID %d",
(int)other_pid);
} else {
say_syserror(
"failed to create pid file '%s'",
pid_file);
}
exit(EXIT_FAILURE);
}
}
/*
* logger init must happen before daemonising in order for the error
* to show and for the process to exit with a failure status
*/
if (box_init_say() != 0) {
diag_log();
exit(EXIT_FAILURE);
}
/*
* Initialize flight recorder after say logger as we might use
* say API.
*/
if (box_set_flightrec() != 0) {
diag_log();
exit(EXIT_FAILURE);
}
memtx_tx_manager_use_mvcc_engine = cfg_getb("memtx_use_mvcc_engine");
if (background)
daemonize();
/*
* after (optional) daemonising to avoid confusing messages with
* different pids
*/
say_info("%s %s %s", tarantool_package(), tarantool_version(),
BUILD_INFO);
int log_level = say_get_log_level();
say_info("log level %d (%s)", log_level, say_log_level_str(log_level));
if (pid_file_handle != NULL) {
if (pidfile_write(pid_file_handle) == -1)
say_syserror("failed to update pid file '%s'", pid_file);
}
title_set_custom(cfg_gets("custom_proc_title"));
title_update();
box_cfg();
}
static void
free_rl_state(void)
{
/* tarantool_lua_free() was formerly reponsible for terminal reset,
* but it is no longer called
*/
if (isatty(STDIN_FILENO)) {
/*
* Restore terminal state. Doesn't hurt if exiting not
* due to a signal.
*/
rl_cleanup_after_signal();
}
}
static void
tarantool_atexit(void)
{
/* Same checks as in tarantool_free() */
if (getpid() != master_pid)
return;
if (!cord_is_main())
return;
free_rl_state();
}
static void
tarantool_free(void)
{
/*
* Do nothing in a fork.
* Note: technically we should do pidfile_close(), however since our
* forks do exec immediately we can get away without it, thanks to
* the magic O_CLOEXEC
*/
if (getpid() != master_pid)
return;
/*
* It's better to do nothing and keep xlogs opened when
* we are called by exit() from a non-main thread.
*/
if (!cord_is_main())
return;
/* Shutdown worker pool. Waits until threads terminate. */
coio_shutdown();
box_lua_free();
box_free();
title_free(main_argc, main_argv);
popen_free();
module_free();
/* unlink pidfile. */
if (pid_file_handle != NULL && pidfile_remove(pid_file_handle) == -1)
say_syserror("failed to remove pid file '%s'", pid_file);
free(pid_file);
signal_free();
#ifdef ENABLE_GCOV
gcov_flush();
#endif
cbus_free();
#if 0
/*
* This doesn't work reliably since things
* are too interconnected.
*/
tarantool_lua_free();
session_free();
user_cache_free();
#endif
event_free();
ssl_free();
memtx_tx_manager_free();
coll_free();
systemd_free();
say_logger_free();
fiber_free();
memory_free();
random_free();
}
static void
print_version(void)
{
printf("%s %s\n", tarantool_package(), tarantool_version());
printf("Target: %s\n", BUILD_INFO);
printf("Build options: %s\n", BUILD_OPTIONS);
printf("Compiler: %s\n", COMPILER_INFO);
printf("C_FLAGS:%s\n", TARANTOOL_C_FLAGS);
printf("CXX_FLAGS:%s\n", TARANTOOL_CXX_FLAGS);
}
/**
* Yield Tarantool help message to the given stream.
*/
static void
print_help(FILE *stream)
{
static const char help_msg[] = "Tarantool %s\n"
"\n"
"----------------------------------------------------------\n"
"\n"
"The recommended way to work with Tarantool is to use tt\n"
"tool.\n"
"\n"
"Run a Tarantool instance:\n"
"\n"
"$ tt start --name <instance name>\n"
"\n"
"Connect to an instance:\n"
"\n"
"$ tt connect <uri>\n"
"\n"
"Execute a Lua script:\n"
"\n"
"$ tt run [OPTIONS] script.lua [ARGS]\n"
"\n"
"Run an interactive Lua interpreter:\n"
"\n"
"$ tt run -i\n"
"\n"
"Please visit https://tarantool.io/tt to see online\n"
"documentation.\n"
"\n"
"----------------------------------------------------------\n"
"\n"
"At the lower level there are the following action options.\n"
"\n"
"-h\n"
"--help\n"
"\n"
" Print this help message.\n"
"\n"
"-v, -V\n"
"--version\n"
"\n"
" Print version and build information.\n"
"\n"
"--help-env-list\n"
"\n"
" Print environment variables list.\n"
"\n"
"-n <...> [-c <...>]\n"
"--name <...> [--config <...>]\n"
"\n"
" Start an instance.\n"
"\n"
" The path to the configuration file can be omitted if a\n"
" configuration is stored in etcd and TT_CONFIG_ETCD_*\n"
" environment variables are set.\n"
"\n"
"<first positional argument> [<..more args..>]\n"
"\n"
" Run a Lua script file. All the arguments after the\n"
" script name are stored in the `arg` global value.\n"
"\n"
" The file may be pointed as `-` to read the script from\n"
" stdin.\n"
"\n"
"-e <..code..>\n"
"\n"
" Run a Lua code.\n"
"\n"
" It can be used on its own (as an action option) or\n"
" together with another action option (as a modifier).\n"
"\n"
"-i\n"
"\n"
" Run the interactive REPL.\n"
"\n"
"--failover\n"
"\n"
" Run a failover coordinator service.\n"
"\n"
" It is available in Tarantool Enterprise Edition.\n"
"\n"
"The following modifier options are applicable to actions.\n"
"\n"
"--force-recovery\n"
"\n"
" Enable force-recovery mode at database loading.\n"
"\n"
"--integrity-check <path/to/hashes.json>\n"
"\n"
" Enable integrity check and load hash sums.\n"
"\n"
"-l <module>\n"
"\n"
" `require` Lua module <module> and set it the same named\n"
" global variable.\n"
"\n"
"-j <cmd>\n"
"\n"
" Perform LuaJIT control command <cmd>.\n"
"\n"
"-b <...>\n"
"\n"
" Save or list bytecode.\n"
"\n"
"-d\n"
"\n"
" Activate debugging session for a given script.\n"
"\n"
"--\n"
"\n"
" End-of-options marker. All the arguments after the\n"
" marker are interpreted as non-option ones.\n"
"\n"
"Please visit project home page at https://tarantool.io\n"
"to see online documentation.\n"
"\n"
"Visit https://github.com/tarantool/tarantool to submit bugs\n"
"or contribute a patch.\n";
fprintf(stream, help_msg, tarantool_version());
}
int
main(int argc, char **argv)
{
/* set locale to make iswXXXX function work */
if (setlocale(LC_CTYPE, "C.UTF-8") == NULL &&
setlocale(LC_CTYPE, "en_US.UTF-8") == NULL &&
setlocale(LC_CTYPE, "en_US.utf8") == NULL)
fprintf(stderr, "Failed to set locale to C.UTF-8\n");
fpconv_check();
/* Enter interactive mode after executing 'script' */
uint32_t opt_mask = 0;
/* Lua interpeter options, e.g. -e and -l */
int optc = 0;
const char **optv = NULL;
/* Instance configuration data. */
static instance_state instance;
/* The maximum possible number of Lua interpeter options */
int optc_max = (argc - 1) * 2;
bool say_entering_the_event_loop = true;
auto guard = make_scoped_guard([&optc, &optv]{ if (optc) free(optv); });
static struct option longopts[] = {
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'v'},
{"config", required_argument, 0, 'c'},
{"name", required_argument, 0, 'n'},
/*
* Use 'E' character as an indicator of the
* --help-env-list option.
*
* Note: there is no -E short option, see the
* `opts` variable below.
*
* An arbitrary `int` value that is not used for
* another option may be used here. Feel free to
* change it if -E short option should be added.
*/
{"help-env-list", no_argument, 0, 'E'},
{"force-recovery", no_argument, 0, 'F'},
{"integrity-check", required_argument, 0, 'I'},
/*
* Use 'O' for --failover. See --help-env-list
* above for details of the approach.
*/
{"failover", no_argument, 0, 'O'},
{NULL, 0, 0, 0},
};
static const char *opts = "+hVvb::ij:e:l:dc:n:";
int ch;
bool lj_arg = false;
while ((ch = getopt_long(argc, argv, opts, longopts, NULL)) != -1) {
switch (ch) {
case 'n':
/*
* XXX: The given argument is copied to be
* consistent with <getenv_safe> results.
*/
instance.name = (const char *)xstrdup(optarg);
break;
case 'c':
/*
* XXX: The given argument is copied to be
* consistent with <getenv_safe> results.
*/
instance.config = (const char *)xstrdup(optarg);
break;
case 'V':
case 'v':
print_version();
return 0;
case 'h':
print_help(stdout);
return 0;
case 'E':
opt_mask |= O_HELP_ENV_LIST;
break;
case 'F':
box_is_force_recovery = true;
break;
case 'I':
#if ENABLE_INTEGRITY
opt_mask |= O_INTEGRITY;
/*
* Reset all environment variables.
* XXX: This is the most early spot to
* reset the environment; if the error
* occurs, execution cannot be proceed.
*/
if (clearenv() != 0) {
fprintf(stderr, "Environment is not reset, but "
"integrity check is enabled.\n");
return 1;
}
instance.hashes = optarg;
break;
#else
fprintf(stderr, "--integrity-check CLI option is "
"available only in Tarantool "
"Enterprise Edition\n");
return EX_USAGE;
#endif
case 'i':
/* Force interactive mode */
opt_mask |= O_INTERACTIVE;
break;
case 'd':
opt_mask |= O_DEBUGGING;
break;
case 'b':
opt_mask |= O_BYTECODE;
/*
* The bytecode option is met --
* all subsequent options are
* treated as its suboptions.
*/
lj_arg = true;
optind--;
break;
case 'O':
#if ENABLE_FAILOVER
/*
* No much sense to print this message for
* a standalone failover coordinator
* service.
*/
say_entering_the_event_loop = false;
opt_mask |= O_FAILOVER;
break;
#else
fprintf(stderr, "--failover CLI option is available "
"only in Tarantool Enterprise Edition\n");
return EX_USAGE;
#endif
case 'e':
opt_mask |= O_EXECUTE;
FALLTHROUGH;
case 'j':
case 'l':
/* Save Lua interepter options to optv as is */
if (optc == 0)
optv = (const char **)xcalloc(optc_max,
sizeof(optv[0]));
if (ch == 'l')
optv[optc++] = "-l";
else if (ch == 'j')
optv[optc++] = "-j";
else
optv[optc++] = "-e";
optv[optc++] = optarg;
break;
default:
/* "invalid option" is printed by getopt */
return EX_USAGE;
}
/* See the comment about the bytecode option above. */
if (lj_arg)
break;
}
if (instance.name == NULL)
instance.name = getenv_safe("TT_INSTANCE_NAME", NULL, 0);
if (instance.config == NULL)
instance.config = getenv_safe("TT_CONFIG", NULL, 0);
/* Shift arguments */
argc = 1 + (argc - optind);
for (int i = 1; i < argc; i++)
argv[i] = argv[optind + i - 1];
/*
* The corresponding check is omitted for `O_BYTECODE`
* since it is present in `bcsave.lua` module, which
* performs the bytecode dump.
*/
if (!(opt_mask & O_BYTECODE) && argc > 1 &&
strcmp(argv[1], "-") && access(argv[1], R_OK) != 0) {
/*
* Somebody made a mistake in the file
* name. Be nice: open the file to set
* errno.
*/
int fd = open(argv[1], O_RDONLY);
int save_errno = errno;
if (fd >= 0)
close(fd);
printf("Can't open script %s: %s\n",
argv[1], tt_strerror(save_errno));
return save_errno;
}
argv = title_init(argc, argv);
/*
* Support only #!/usr/bin/tarantol but not
* #!/usr/bin/tarantool -a -b because:
* - not all shells support it,
* - those shells that do support it, do not
* split multiple options, so "-a -b" comes as
* a single value in argv[1].
* - in case one uses #!/usr/bin/env tarantool
* such options (in script line) don't work
*/
const char *tarantool_bin = find_path(argv[0]);
if (!tarantool_bin)
tarantool_bin = argv[0];
if (argc > 1) {
argv++;
argc--;
script = argv[0];
title_set_script_name(argv[0]);
}
strlcpy(tarantool_path, tarantool_bin, sizeof(tarantool_path));
if (strlen(tarantool_path) < strlen(tarantool_bin))
panic("executable path is trimmed");
/*
* The idea of the check below is that we can't run
* tarantool without any action: there should be at least
* one.
*
* There are the following actions.
*
* * Print a help message or a version (--help, --version;
* these actions are handled above).
* * Print environment variables list (--help-env-list).
* * Start an instance (with a name and a config).
* * Run a script pointed by a positional argument or
* written using -e option.
* * Start interactive REPL (-i).
* * Start a failover coordinator (--failover).
*/
uint32_t action_opt_mask = O_INTERACTIVE | O_EXECUTE | O_HELP_ENV_LIST |
O_FAILOVER;
if (script == NULL && (opt_mask & action_opt_mask) == 0 &&
instance.name == NULL) {
static const char misuse_msg[] = "Invalid usage: "
"please either provide a Lua script name\n"
"or specify an instance name to be started\n"
"or set -i CLI flag to spawn Lua REPL or run a\n"
"failover coordinator using --failover CLI option.\n\n"
;
fputs(misuse_msg, stderr);
print_help(stderr);
return EXIT_FAILURE;
}
struct timespec ts;
if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0)
tarantool_start_time = ts.tv_sec;
else
say_syserror("failed to get start time, ignore");
random_init();
crc32_init();
memory_init();
main_argc = argc;
main_argv = argv;
fiber_init(fiber_cxx_invoke);
popen_init();
coio_init();
coio_enable();