# 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): void

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.

警告

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

没有返回值。

Prior to version 1.0.0, 成功时返回 `WIN32_NO_ERROR`，参数错误时返回 `false`，或失败时返回一个 Win32 错误码。

### 错误／异常

Prior to version 1.0.0, if the SAPI is not `"cli"`, this function emits an `E_ERROR` level error.

As of version 1.0.0, will throw a Win32ServiceException if SAPI is not `"cli"`

### 更新日志

版本 | 说明
--- | ---
PECL win32service 1.0.0 | Throws a ValueError on invalid data in parameters, previously `false` was returned.
PECL win32service 1.0.0 | Throws a Win32ServiceException on error, previously a Win32 Error Code was returned.
PECL win32service 1.0.0 | The return type is now void, previously it was mixed.
PECL win32service 0.4.0 | The parameter `gracefulMode` has been added.
PECL win32service 0.2.0 | This function works only in the `"cli"` SAPI.

### 示例

示例 #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
}
?>`

### 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

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