Mercurial > hg > nginx
view src/os/win32/ngx_service.c @ 7441:8acaa1161783
Stream: do not split datagrams when limiting proxy rate.
Previously, when using proxy_upload_rate and proxy_download_rate, the buffer
size for reading from a socket could be reduced as a result of rate limiting.
For connection-oriented protocols this behavior is normal since unread data will
normally be read at the next iteration. But for datagram-oriented protocols
this is not the case, and unread part of the datagram is lost.
Now buffer size is not limited for datagrams. Rate limiting still works in this
case by delaying the next reading event.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Thu, 27 Dec 2018 19:37:34 +0300 |
parents | a1caf3989b49 |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #define NGX_SERVICE_CONTROL_SHUTDOWN 128 #define NGX_SERVICE_CONTROL_REOPEN 129 SERVICE_TABLE_ENTRY st[] = { { "nginx", service_main }, { NULL, NULL } }; ngx_int_t ngx_service(ngx_log_t *log) { /* primary thread */ /* StartServiceCtrlDispatcher() should be called within 30 seconds */ if (StartServiceCtrlDispatcher(st) == 0) { ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "StartServiceCtrlDispatcher() failed"); return NGX_ERROR; } return NGX_OK; } void service_main(u_int argc, char **argv) { SERVICE_STATUS status; SERVICE_STATUS_HANDLE service; /* thread spawned by SCM */ service = RegisterServiceCtrlHandlerEx("nginx", service_handler, ctx); if (service == INVALID_HANDLE_VALUE) { ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "RegisterServiceCtrlHandlerEx() failed"); return; } status.dwServiceType = SERVICE_WIN32_OWN_PROCESS; status.dwCurrentState = SERVICE_START_PENDING; status.dwControlsAccepted = SERVICE_ACCEPT_STOP |SERVICE_ACCEPT_PARAMCHANGE; status.dwWin32ExitCode = NO_ERROR; status.dwServiceSpecificExitCode = 0; status.dwCheckPoint = 1; status.dwWaitHint = 2000; /* SetServiceStatus() should be called within 80 seconds */ if (SetServiceStatus(service, &status) == 0) { ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "SetServiceStatus() failed"); return; } /* init */ status.dwCurrentState = SERVICE_RUNNING; status.dwCheckPoint = 0; status.dwWaitHint = 0; if (SetServiceStatus(service, &status) == 0) { ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "SetServiceStatus() failed"); return; } /* call master or worker loop */ /* * master should use event notification and look status * single should use iocp to get notifications from service handler */ } u_int service_handler(u_int control, u_int type, void *data, void *ctx) { /* primary thread */ switch (control) { case SERVICE_CONTROL_INTERROGATE: status = NGX_IOCP_INTERROGATE; break; case SERVICE_CONTROL_STOP: status = NGX_IOCP_STOP; break; case SERVICE_CONTROL_PARAMCHANGE: status = NGX_IOCP_RECONFIGURE; break; case NGX_SERVICE_CONTROL_SHUTDOWN: status = NGX_IOCP_REOPEN; break; case NGX_SERVICE_CONTROL_REOPEN: status = NGX_IOCP_REOPEN; break; default: return ERROR_CALL_NOT_IMPLEMENTED; } if (ngx_single) { if (PostQueuedCompletionStatus(iocp, ... status, ...) == 0) { err = ngx_errno; ngx_log_error(NGX_LOG_ALERT, log, err, "PostQueuedCompletionStatus() failed"); return err; } } else { Event } return NO_ERROR; }