view src/os/win32/ngx_service.c @ 6858:f39ceadf0441

Win32: minimized redefinition of intptr_t/uintptr_t. These types are available with MSVC (at least since 2003, in stddef.h), all variants of GCC (in stdint.h) and Watcom C. We need to define them only for Borland C.
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 24 Dec 2016 18:01:14 +0300
parents a1caf3989b49
children
line wrap: on
line source


/*
 * 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;
}