# win32_start_service_ctrl_dispatcher

(PECL win32service >=0.1.0)

win32_start_service_ctrl_dispatcher — Registers the script with the SCM, so that it can act as the service with the given name

### 说明

win32_start_service_ctrl_dispatcher ( string `$name` [, bool `$gracefulMode` = true ] ) : mixed

When launched via the Service Control Manager, a service process is required to "check-in" with it to establish service monitoring and communication facilities. This function performs the check-in by spawning a thread to handle the lower-level communication with the service control manager.

Once started, the service process should do 2 things. The first is to tell the Service Control Manager that the service is running. This is achieved by calling win32_set_service_status() with the `WIN32_SERVICE_RUNNING` constant. If you need to perform some lengthy process before the service is actually running, then you can use the `WIN32_SERVICE_START_PENDING` constant. The second is to continue to check-in with the service control manager so that it can determine if it should terminate. This is achieved by periodically calling win32_get_last_control_message() and handling the return code appropriately.

Caution

Since version 0.2.0, this function work only in "cli" SAPI. On other SAPI this function is disabled.

### 参数

`name`

  The short-name of the service, as registered by win32_create_service().

`gracefulMode`

  `TRUE` for exit graceful. `FALSE` for exit with error. See win32_set_service_exit_mode() for more details.

### 返回值

成功时返回 `TRUE`，参数错误时返回 `FALSE`，或失败时返回一个 Win32 错误码。

### 错误／异常

If SAPI is not "cli", this function emits an `E_ERROR` level error.

### 范例

Example #1 A win32_start_service_ctrl_dispatcher() example

Check if the service is runnig under the SCM.

    <?php
    if (!win32_start_service_ctrl_dispatcher('dummyphp')) {
      die("I'm probably not running under the service control manager");
    }

    win32_set_service_status(WIN32_SERVICE_START_PENDING);

    // Some lengthy process to get this service up and running.

    win32_set_service_status(WIN32_SERVICE_RUNNING);

    while (WIN32_SERVICE_CONTROL_STOP != win32_get_last_control_message()) {
      # do some work here, trying not to take more than around 30 seconds
      # before coming back into the loop again
    }
    ?>

### 更新日志

版本 | 说明
--- | ---
0.4.0 | The parameter `gracefulMode` has been added.
0.2.0 | This function works only in the "cli" SAPI.

### 参见

- win32_set_service_status() - Update the service status
- win32_get_last_control_message() - Returns the last control message that was sent to this service
- win32_set_service_exit_mode() - Define or return the exit mode for the current running service
- win32_set_service_exit_code() - Define or return the exit code for the current running service
- Win32 Error Codes