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95 lines
2.6 KiB
Lua
95 lines
2.6 KiB
Lua
-- Copyright (c) 2011 by Robert G. Jakabosky <bobby@sharedrealm.com>
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--
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-- Permission is hereby granted, free of charge, to any person obtaining a copy
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-- of this software and associated documentation files (the "Software"), to deal
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-- in the Software without restriction, including without limitation the rights
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-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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-- copies of the Software, and to permit persons to whom the Software is
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-- furnished to do so, subject to the following conditions:
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--
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-- The above copyright notice and this permission notice shall be included in
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-- all copies or substantial portions of the Software.
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--
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-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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-- THE SOFTWARE.
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--
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-- zmq.thread wraps the low-level threads object & a zmq context.
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--
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local zmq = require"zmq"
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local llthreads = require"llthreads"
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local bootstrap_pre = [[
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local action, action_arg, parent_ctx = ...
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local func
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]]
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local bootstrap_post = [[
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-- copy parent ZeroMQ context to this child thread.
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local zmq = require"zmq"
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local zthreads = require"zmq.threads"
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if parent_ctx then
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zthreads.set_parent_ctx(zmq.init_ctx(parent_ctx))
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end
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-- create global 'arg'
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arg = { select(4, ...) }
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-- load Lua code.
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if action == 'runfile' then
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func = assert(loadfile(action_arg))
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-- script name
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arg[0] = action_arg
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elseif action == 'runstring' then
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func = assert(loadstring(action_arg))
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-- fake script name
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arg[0] = '=(loadstring)'
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end
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-- run loaded code.
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return func(select(4, ...))
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]]
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local bootstrap_code = bootstrap_pre..bootstrap_post
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local function new_thread(ctx, action, action_arg, ...)
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-- convert ZMQ_Ctx to lightuserdata.
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if ctx then
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ctx = ctx:lightuserdata()
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end
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return llthreads.new(bootstrap_code, action, action_arg, ctx, ...)
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end
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local M = {}
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function M.set_bootstrap_prelude(code)
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bootstrap_code = bootstrap_pre .. code .. bootstrap_post
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end
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function M.runfile(ctx, file, ...)
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return new_thread(ctx, 'runfile', file, ...)
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end
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function M.runstring(ctx, code, ...)
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return new_thread(ctx, 'runstring', code, ...)
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end
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local parent_ctx = nil
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function M.set_parent_ctx(ctx)
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parent_ctx = ctx
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end
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function M.get_parent_ctx(ctx)
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return parent_ctx
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end
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zmq.threads = M
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return M
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