18 lines
687 B
Plaintext
18 lines
687 B
Plaintext
:sig
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pid_t task(String key, std::function<void()> exec_func)
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:params
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key : string uniquely identifying the task
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exec_func : function to execute
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return value : the process ID of the started (or still running) task
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:desc
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task() starts the 'exec_func' in a new process and returns that process' ID. If a process with the same 'key' is already running, task will not start a new process but instead just return the PID of the process that is already running.
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:see
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>task
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:related
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**PHP:** Background-process patterns using `proc_open()`, queues, cron, or worker supervisors
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**JavaScript / Node.js:** Node `child_process`, worker queues, timers, schedulers, and supervised background jobs
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