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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.
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Introduces the functions nxt_process_init_create() and
nxt_process_init_creds_set().
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This closes #99 issue on GitHub.
Thanks to Julian Brost.
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Library now used in all language modules.
Old 'nxt_app_*' code removed.
See src/test/nxt_unit_app_test.c for usage sample.
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This and previous commit close #131 issue on GitHub.
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This required to avoid racing condition when controller receive router
port before router receives controller port.
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Finalizing Python interpreter.
This closes #65 issue on GitHub.
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Now configuration survives server reloads.
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Previously, reconfiguration might fail right after the daemon start
if the router process wasn't ready yet.
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Configuration and building example:
./configure
./configure python
./configure php
./configure go
make all
or
./configure
make nginext
./configure python
make python
./configure php
make php
./configure go
make go
Modules configuration options and building examples:
./configure python --module=python2 --config=python2.7-config
make python2
./configure php --module=php7 --config=php7.0-config
--lib-path=/usr/local/php7.0
make php7
./configure go --go=go1.6 --go-path=${HOME}/go1.6
make go1.6
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to the master process.
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Usage:
1. Register handlers in incoming port with nxt_port_rpc_register_handler().
2. Use return value as a stream identifier for next nxt_port_socket_write().
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Application process start request DATA message from router to master.
Master notifies router via NEW_PORT message after worker process become ready.
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Now controller serializes all reconfiguration requests
and waits for result from router.
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New port message type introduced NXT_PORT_MSG_REMOVE_PID. Default handler
removes process description from nxt_runtime_t with all ports, incoming and
outgoing mmaps etc.
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Controller: stub to send configuration from POST body "as is" to router.
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Usage on the router side:
nxt_app_wmsg_t wmsg;
nxt_app_parse_ctx_t parse_ctx;
nxt_app_http_req_init(task, &parse_ctx);
/* parse incoming request data */
if (nxt_app_http_req_parse(task, &parse_ctx, buf) == NXT_DONE) {
/* choose app */
nxt_app = nxt_select_app(... &parse_ctx.r ...);
/* find port */
wmsg.port = nxt_get_app_port(... nxt_app ...);
wmsg.buf = &wmsg.write;
/* fill write message buffer in shared mem */
nxt_app->prepare_msg(task, &parse_ctx.r, &wmsg);
/* send message to app for processing */
nxt_port_socket_write(task, wmsg.port, NXT_PORT_MSG_DATA,
-1, 0, 0, wmsg.write);
}
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to nxt_conn_...
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Usage:
b = nxt_port_mmap_get_buf(task, port, size);
b->mem.free = nxt_cpymem(b->mem.free, data, size);
nxt_port_socket_write(task, port, NXT_PORT_MSG_DATA, -1, 0, b);
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The cycle has been renamed to the runtime.
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