process

问题 when a program started the OS will create a virtual memory , which divided into stack , heap , data , text to run a process on it.I know that each segment is used for specification purpose such as text saves the binary code of program, data saves static and global variable. My question is why the OS need to create the virtual memory and divide it into the segments ? How about if OS just use the physical memory and the process run directly on the physical memory. I think maybe the answer is

问题 I'm having difficulties trying to set the LEFT panel of a shuttle with value I calculate in a PL/SQL process. I can only set the RIGHT panel list of value from there. I've read about apex.server.process to call in a JavaScript event, but I can't figure it out. Furthermore, I wonder if there's any simpler way to do so. My process simply sets a page Item P1_TMP to something like : 'abc:def:ghi' . I'd like to set the left panel of the shuttle with the values from P1_TPM whenever the process is

问题 I'm having difficulties trying to set the LEFT panel of a shuttle with value I calculate in a PL/SQL process. I can only set the RIGHT panel list of value from there. I've read about apex.server.process to call in a JavaScript event, but I can't figure it out. Furthermore, I wonder if there's any simpler way to do so. My process simply sets a page Item P1_TMP to something like : 'abc:def:ghi' . I'd like to set the left panel of the shuttle with the values from P1_TPM whenever the process is

问题 I was trying to understand how current macro works, so started browsing the Linux Kernel source code version 4.19. Was trying to understand for x86 architecture include/asm-generic/current.h:8 #define get_current() (current_thread_info()->task) #define current get_current() I then tried to find the definition of current_thread_info(). include/linux/thread_info.h #ifdef CONFIG_THREAD_INFO_IN_TASK /* * For CONFIG_THREAD_INFO_IN_TASK kernels we need <asm/current.h> for the * definition of

问题 I was trying to understand how current macro works, so started browsing the Linux Kernel source code version 4.19. Was trying to understand for x86 architecture include/asm-generic/current.h:8 #define get_current() (current_thread_info()->task) #define current get_current() I then tried to find the definition of current_thread_info(). include/linux/thread_info.h #ifdef CONFIG_THREAD_INFO_IN_TASK /* * For CONFIG_THREAD_INFO_IN_TASK kernels we need <asm/current.h> for the * definition of

问题 Is it possible in java by using something like ProcessBuilder to open gitbash, write a command (for example git status) and output the results? I can successfully open git bash by using the following code but i don't know how to write any commands in it. String[] commands = {"cmd","/C","C:\\Users\\......\\Git\git-bash"}; ProcessBuilder builder = new ProcessBuilder(commands); builder.redirectErrorStream(true); Process process = builder.start(); StringBuilder sb = new StringBuilder();

问题 Hello i am trying to send a key to browser using the code below, the new chrome window opens for me but it does not send the key to the browser. When i debugged i found out chrome process does not have any title name how can i solve this problem? Process.Start("chrome.exe", "https://labs.sketchfab.com/sculptfab/"); System.Threading.Thread.Sleep(2000); foreach (System.Diagnostics.Process p in System.Diagnostics.Process.GetProcesses()) { if (p.ProcessName == "chrome" && p.MainWindowTitle ==

问题 How could I execute a system command such as cp somefile somedestination in Haskell? Something like an os.Exec . 回答1: The Haskell 98 standard provides: System.system :: String -> IO GHC.IO.Exception.ExitCode which executes a command. The new System.Process library is more useful though, allowing for portable input/output redirection and so forth. 回答2: I'm not a haskell buff, but this may be what you're looking for 回答3: If you do this sort of thing a lot then it's worth having a look at http:/

问题 I have a log file that is open and in use by another program, and I read it's contents with the following: Dim strContents As String Dim x As New FileStream(FullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite) Dim objReader As StreamReader objReader = New StreamReader(x) strContents = objReader.ReadToEnd() objReader.Close() This works for reading the text from the file while it is still in use by the other program, however, immediately after this I need to truncate the text file

问题 I have an application which starts 1-45 processes (job dependent) and communicates with them via named pipes. I'm only interested in the stderr of the child processes and have no interest in redirecting the stdout of the processes. I have written code that does exactly this, I redirect stderr and not stdout and everything works as expected. And when I say that I mean, I get the redirected stderr and I don't see any stdout appearing on the parent processes console nor do I get any deadlocks