Current File : //proc/thread-self/root/opt/imunify360-webshield/lualib/resty/core/time.lua
-- Copyright (C) Yichun Zhang (agentzh)
local ffi = require 'ffi'
local base = require "resty.core.base"
local error = error
local tonumber = tonumber
local type = type
local C = ffi.C
local ffi_new = ffi.new
local ffi_str = ffi.string
local time_val = ffi_new("long[1]")
local get_string_buf = base.get_string_buf
local ngx = ngx
local FFI_ERROR = base.FFI_ERROR
local subsystem = ngx.config.subsystem
local ngx_lua_ffi_now
local ngx_lua_ffi_time
local ngx_lua_ffi_monotonic_msec
local ngx_lua_ffi_today
local ngx_lua_ffi_localtime
local ngx_lua_ffi_utctime
local ngx_lua_ffi_update_time
if subsystem == 'http' then
ffi.cdef[[
double ngx_http_lua_ffi_now(void);
long ngx_http_lua_ffi_time(void);
long ngx_http_lua_ffi_monotonic_msec(void);
void ngx_http_lua_ffi_today(unsigned char *buf);
void ngx_http_lua_ffi_localtime(unsigned char *buf);
void ngx_http_lua_ffi_utctime(unsigned char *buf);
void ngx_http_lua_ffi_update_time(void);
int ngx_http_lua_ffi_cookie_time(unsigned char *buf, long t);
void ngx_http_lua_ffi_http_time(unsigned char *buf, long t);
void ngx_http_lua_ffi_parse_http_time(const unsigned char *str, size_t len,
long *time);
]]
ngx_lua_ffi_now = C.ngx_http_lua_ffi_now
ngx_lua_ffi_time = C.ngx_http_lua_ffi_time
ngx_lua_ffi_monotonic_msec = C.ngx_http_lua_ffi_monotonic_msec
ngx_lua_ffi_today = C.ngx_http_lua_ffi_today
ngx_lua_ffi_localtime = C.ngx_http_lua_ffi_localtime
ngx_lua_ffi_utctime = C.ngx_http_lua_ffi_utctime
ngx_lua_ffi_update_time = C.ngx_http_lua_ffi_update_time
elseif subsystem == 'stream' then
ffi.cdef[[
double ngx_stream_lua_ffi_now(void);
long ngx_stream_lua_ffi_time(void);
long ngx_stream_lua_ffi_monotonic_msec(void);
void ngx_stream_lua_ffi_today(unsigned char *buf);
void ngx_stream_lua_ffi_localtime(unsigned char *buf);
void ngx_stream_lua_ffi_utctime(unsigned char *buf);
void ngx_stream_lua_ffi_update_time(void);
]]
ngx_lua_ffi_now = C.ngx_stream_lua_ffi_now
ngx_lua_ffi_time = C.ngx_stream_lua_ffi_time
ngx_lua_ffi_monotonic_msec = C.ngx_stream_lua_ffi_monotonic_msec
ngx_lua_ffi_today = C.ngx_stream_lua_ffi_today
ngx_lua_ffi_localtime = C.ngx_stream_lua_ffi_localtime
ngx_lua_ffi_utctime = C.ngx_stream_lua_ffi_utctime
ngx_lua_ffi_update_time = C.ngx_stream_lua_ffi_update_time
end
function ngx.now()
local now = tonumber(ngx_lua_ffi_now())
return now
end
function ngx.time()
local time = tonumber(ngx_lua_ffi_time())
return time
end
local function monotonic_msec()
local msec = tonumber(ngx_lua_ffi_monotonic_msec())
return msec
end
local function monotonic_time()
local msec = tonumber(ngx_lua_ffi_monotonic_msec())
local time = msec / 1000
return time
end
function ngx.update_time()
ngx_lua_ffi_update_time()
end
function ngx.today()
-- the format of today is 2010-11-19
local today_buf_size = 10
local buf = get_string_buf(today_buf_size)
ngx_lua_ffi_today(buf)
return ffi_str(buf, today_buf_size)
end
function ngx.localtime()
-- the format of localtime is 2010-11-19 20:56:31
local localtime_buf_size = 19
local buf = get_string_buf(localtime_buf_size)
ngx_lua_ffi_localtime(buf)
return ffi_str(buf, localtime_buf_size)
end
function ngx.utctime()
-- the format of utctime is 2010-11-19 20:56:31
local utctime_buf_size = 19
local buf = get_string_buf(utctime_buf_size)
ngx_lua_ffi_utctime(buf)
return ffi_str(buf, utctime_buf_size)
end
if subsystem == 'http' then
function ngx.cookie_time(sec)
if type(sec) ~= "number" then
error("number argument only", 2)
end
-- the format of cookie time is Mon, 28-Sep-2038 06:00:00 GMT
-- or Mon, 28-Sep-18 06:00:00 GMT
local cookie_time_buf_size = 29
local buf = get_string_buf(cookie_time_buf_size)
local used_size = C.ngx_http_lua_ffi_cookie_time(buf, sec)
return ffi_str(buf, used_size)
end
function ngx.http_time(sec)
if type(sec) ~= "number" then
error("number argument only", 2)
end
-- the format of http time is Mon, 28 Sep 1970 06:00:00 GMT
local http_time_buf_size = 29
local buf = get_string_buf(http_time_buf_size)
C.ngx_http_lua_ffi_http_time(buf, sec)
return ffi_str(buf, http_time_buf_size)
end
function ngx.parse_http_time(time_str)
if type(time_str) ~= "string" then
error("string argument only", 2)
end
C.ngx_http_lua_ffi_parse_http_time(time_str, #time_str, time_val)
local res = time_val[0]
if res == FFI_ERROR then
return nil
end
local time = tonumber(res)
return time
end
end
return {
version = base.version,
monotonic_msec = monotonic_msec,
monotonic_time = monotonic_time
}
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