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--!A cross-platform build utility based on Lua
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
--
-- Copyright (C) 2015-2020, TBOOX Open Source Group.
--
-- @author ruki
-- @file runjobs.lua
--
-- imports
import("core.base.scheduler")
import("core.base.hashset")
-- print back characters
function _print_backchars(backnum)
if backnum > 0 then
local str = ""
for i = 1, backnum do
str = str .. '\b'
end
for i = 1, backnum do
str = str .. ' '
end
for i = 1, backnum do
str = str .. '\b'
end
if #str > 0 then
printf(str)
end
end
end
-- asynchronous run jobs
function main(name, jobfunc, opt)
-- init options
op = opt or {}
local total = opt.total or 1
local comax = opt.comax or total
local timeout = opt.timeout or 500
local group_name = name
assert(timeout < 60000, "runjobs: invalid timeout!")
-- show waiting tips?
local waitindex = 0
local waitchars = opt.waitchars or {'\\', '-', '/', '|'}
local backnum = 0
local showtips = io.isatty() and opt.showtips -- we need hide wait characters if is not a tty
-- run timer
local stop = false
local running_jobs_indices
if opt.timer then
scheduler.co_start_named(name .. "/timer", function ()
while not stop do
os.sleep(timeout)
if not stop then
opt.timer(running_jobs_indices)
end
end
end)
elseif showtips then
scheduler.co_start_named(name .. "/tips", function ()
while not stop do
os.sleep(timeout)
if not stop then
-- print back characters
_print_backchars(backnum)
-- show waitchars
waitindex = ((waitindex + 1) % #waitchars)
local tips = nil
local waitobjs = scheduler.co_group_waitobjs(group_name)
if waitobjs:size() > 0 then
local names = {}
for _, obj in waitobjs:keys() do
if obj:otype() == scheduler.OT_PROC then
table.insert(names, obj:name())
elseif obj:otype() == scheduler.OT_SOCK then
table.insert(names, "sock")
elseif obj:otype() == scheduler.OT_PIPE then
table.insert(names, "pipe")
end
end
names = table.unique(names)
if #names > 0 then
names = table.concat(names, ",")
if #names > 16 then
names = names:sub(1, 16) .. ".."
end
tips = string.format("(%d/%s)", waitobjs:size(), names)
end
end
if tips then
cprintf("${dim}%s${clear} %s", tips, waitchars[waitindex + 1])
backnum = #tips + 2
else
printf(waitchars[waitindex + 1])
backnum = 1
end
io.flush()
end
end
end)
end
-- run jobs
local index = 0
while index < total do
running_jobs_indices = {}
scheduler.co_group_begin(group_name, function ()
local max = math.min(index + comax, total)
while index < max do
index = index + 1
table.insert(running_jobs_indices, index)
scheduler.co_start_named(name .. '/' .. tostring(index), function(i)
try
{
function()
jobfunc(i)
end,
catch
{
function (errors)
-- stop timer and disable show waitchars first
stop = true
-- remove wait charactor
if showtips then
_print_backchars(backnum)
print("")
io.flush()
end
-- do exit callback
if opt.exit then
opt.exit(errors)
end
-- re-throw this errors and abort scheduler
raise(errors)
end
}
}
end, index)
end
end)
scheduler.co_group_wait(group_name)
end
-- stop timer
stop = true
-- remove wait charactor
if showtips then
_print_backchars(backnum)
io.flush()
end
-- do exit callback
if opt.exit then
opt.exit()
end
end
|
