e9e5ddd5a5
The process abstraction has changed to: setup(task, process) start(task, process_data) prefork(task, process, mp) The prefork() occurs in the main process right before fork. The file src/nxt_main_process.c is completely free of process specific logic. The creation of a process now supports a PROCESS_CREATED state. The The setup() function of each process can set its state to either created or ready. If created, a MSG_PROCESS_CREATED is sent to main process, where external setup can be done (required for rootfs under container). The core processes (discovery, controller and router) doesn't need external setup, then they all proceeds to their start() function straight away. In the case of applications, the load of the module happens at the process setup() time and The module's init() function has changed to be the start() of the process. The module API has changed to: setup(task, process, conf) start(task, data) As a direct benefit of the PROCESS_CREATED message, the clone(2) of processes using pid namespaces now doesn't need to create a pipe to make the child block until parent setup uid/gid mappings nor it needs to receive the child pid.
36 lines
905 B
C
36 lines
905 B
C
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/*
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* Copyright (C) Igor Sysoev
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* Copyright (C) NGINX, Inc.
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*/
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#ifndef _NXT_MAIN_PROCESS_H_INCLUDED_
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#define _NXT_MAIN_PROCESS_H_INCLUDED_
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typedef enum {
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NXT_SOCKET_ERROR_SYSTEM = 0,
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NXT_SOCKET_ERROR_NOINET6,
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NXT_SOCKET_ERROR_PORT,
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NXT_SOCKET_ERROR_INUSE,
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NXT_SOCKET_ERROR_NOADDR,
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NXT_SOCKET_ERROR_ACCESS,
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NXT_SOCKET_ERROR_PATH,
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} nxt_socket_error_t;
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nxt_int_t nxt_main_process_start(nxt_thread_t *thr, nxt_task_t *task,
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nxt_runtime_t *runtime);
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NXT_EXPORT extern const nxt_process_init_t nxt_discovery_process;
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NXT_EXPORT extern const nxt_process_init_t nxt_controller_process;
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NXT_EXPORT extern const nxt_process_init_t nxt_router_process;
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NXT_EXPORT extern const nxt_process_init_t nxt_app_process;
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extern const nxt_sig_event_t nxt_main_process_signals[];
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extern const nxt_sig_event_t nxt_process_signals[];
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#endif /* _NXT_MAIN_PROCESS_H_INCLUDED_ */
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