Simple .NET/ASP.NET PDF document editor web control SDK

The code in this section comes from a few utility functions that I find very useful. You will probably come up with many more that are specifically geared toward the systems you work with. Gentoo Linux provides an excellent example of a library of shell functions. If you re running this Linux distribution, you can find the library under the filename /etc/init.d/functions.sh. Even if you re not a Gentoo user, you should be able to get a copy of this library and use it by performing an Internet search for Gentoo and functions.sh, making sure that you follow the applicable usage guidelines contained within the file. The following are a few functions that I ve found particularly useful to include in my standard library. The first function is fairly straightforward, but it contains a cool trick. Pass this function any number, and it will determine whether the number is even or odd. This function was originally used in a moderately large environment where various tasks needed to be load-balanced. We chose a simple method of splitting the environment in

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int main() { printf("Hi from native code\n"); fManaged(); } If you use the command shown in the comment of this code, the C++/CLI compiler will generate a native object file, HelloWorld4obj, and link it together with ManagedCodeobj and UnmanagedCodeobj into the application HelloWorld4exe Since HelloWorld4obj is a native object file, HelloWorld4exe has a native entry point The printf call in main is a native call from a native function This call is done without a switch between managed and unmanaged code After calling printf, the managed function fManaged is called When an unmanaged function like main calls a managed function like fManaged, an unmanaged-to-managed transition takes place When fManaged executes, it uses the managed Console class to do its output, and then it calls the native function fNative In this case, a managed-to-unmanaged transition occurs.

Once you create a window, you must associate it with a job or job class, so the jobs can take advantage of the automatic switching of the active resource plans.

You can open, close, alter, enable, disable, or drop a window using the appropriate procedure in the DBMS_SCHEDULER package, and you need the MANAGE SCHEDULER privilege to perform any of these tasks. Note that since all windows are created in the SYS schema, you must always use the [SYS].window_name syntax when you reference any window. A window will automatically open at a time specified by its START_TIME attribute. You can also open a window manually anytime you wish by using the OPEN_WINDOW procedure. Even when you manually open a window, that window will still open at its regular opening time as specified by its interval. Here s an example that shows how you can open a window manually: SQL> EXECUTE DBMS_SCHEDULER.OPEN_WINDOW( WINDOW_NAME =>'BACKUP_WINDOW', DURATION => '0 12:00:00'); SQL> Look at the DURATION attribute in the preceding statement. When you specify the duration, you can specify days, hours, minutes, and seconds, in that order. Thus, the setting means 0 days, 12 hours, 0 minutes, and 0 seconds. You can also open an already open window. If you do this, the window will remain open for the time specified in its DURATION attribute. That is, if you open a window that has been running for 30

minutes, and its duration is 60 minutes, that window will last be open for the initial 30 minutes plus an additional 60 minutes, for a total of 90 minutes. To close a window, you use the CLOSE_WINDOW procedure, as illustrated by the following example: SQL> EXECUTE DBMS_SCHEDULER.CLOSE_WINDOW('BACKUP_WINDOW'); If a job is running when you close a window, the job will continue to run to its completion. However, if you created a job with the STOP_ON_WINDOW_CLOSE attribute set to TRUE, that running job will close upon the closing of its window. To disable a window, you use the DISABLE procedure, as shown here: SQL> EXECUTE DBMS_SCHEDULER.DISABLE (NAME => 'BACKUP_WINDOW');

You can only disable a window if no job uses that window or if the window isn t open. If the window is open, you can disable it by using the DISABLE procedure with the FORCE=TRUE attribute. You can drop a window by using the DROP_WINDOW procedure. If a job associated with a window is running, a DROP_WINDOW procedure will continue to run through to completion, and the window is disabled after the job completes. If you set the job s STOP_ON_WINDOW_CLOSE attribute to TRUE, however, the job will immediately stop when you drop an associated window. If you use the FORCE=TRUE setting, you ll disable all jobs that use that window.