6.3 , . , 6.4, 6.5 6.6.
6.3. JobShell: ,
/* 6. */
/* JobShell. :
jobbg .
jobs .
kill .
, . */
#include "EvryThng.h"
#include "JobMgt.h"
int _tmain(int argc, LPTSTR argv[]) {
BOOL Exit = FALSE;
TCHAR Command[MAX_COMMAND_LINE + 10], *pc;
DWORD i, LocArgc; /* argc. */
TCHAR argstr[MAX_ARG][MAX_COMMAND_LINE];
LPTSTR pArgs[MAX_ARG];
for (i = 0; i < MAX_ARG; i++) pArgs[i] = argstr[i];
/* , . */
_tprintf(_(" Windows\n"));
while (!Exit) {
_tprintf(_T("%s"), _T("JM$"));
_fgetts(Command, MAX_COMMAND_LINE, stdin);
pc = strchr(Command, '\n');
*pc = '\0';
/* . */
GetArgs(Command, &LocArgc, pArgs); /* . . */
CharLower(argstr[0]);
if(_tcscmp(argstr[0], _T("jobbg")) == 0) {
Jobbg(LocArgc, pArgs, Command);
} else if(_tcscmp(argstr[0], _T("jobs")) == 0) {
Jobs(LocArgc, pArgs, Command);
} else if(_tcscmp(argstr[0], _T("kill")) == 0) {
Kill(LocArgc, pArgs, Command);
} else if(_tcscmp(argstr[0], _T("quit")) == 0) {
Exit = TRUE;
} else _tprintf(_T(" . \n"));
}
return 0;
}
/* jobbg [] [ ]
: .
-d: .
, jobbg. */
int Jobbg(int argc, LPTSTR argv[], LPTSTR Command) {
DWORD fCreate;
LONG JobNo;
BOOL Flags[2];
STARTUPINFO Startup;
PROCESS_INFORMATION ProcessInfo;
LPTSTR targv = SkipArg(Command);
GetStartupInfo(&StartUp);
Options(argc, argv, _T("cd"), &Flags[0], &Flags[1], NULL);
/* , . */
if (argv[1][0] == '-') targv = SkipArg(targv);
fCreate = Flags[0]? CREATE_NEW_CONSOLE: Flags [1]? DETACHED_PROCESS: 0;
/* /. . */
CreateProcess(NULL, targv, NULL, NULL, TRUE, fCreate | CREATE_SUSPENDED | CREATE_NEW_PROCESS_GROUP, NULL, NULL, &StartUp, &ProcessInfo);
/* ID " " . */
|
|
|
JobNo = GetJobNumber(&ProcessInfo, targv); /* . "JobMgt.h" */
if (JobNo >= 0) ResumeThread(ProcessInfo.hThread);
else {
TerminateProcess(ProcessInfo.hProcess, 3);
CloseHandle(ProcessInfo.hProcess);
ReportError(_T(": ."), 0, FALSE);
return 5;
}
CloseHandle(ProcessInfo.hThread);
CloseHandle(ProcessInfo.hProcess);
_tprintf(_T(" [%d] %d\n"), JobNo, ProcessInfo.dwProcessId);
return 0;
}
/* jobs: . */
int Jobs(int argc, LPTSTR argv[], LPTSTR Command) {
if (!DisplayJobs ()) return 1; /*. */
return 0;
}
/* kill [] (JobNumber)
b: Ctrl-Break.
: Ctrl-C.
. */
int Kill(int argc, LPTSTR argv[], LPTSTR Command) {
DWORD ProcessId, JobNumber, iJobNo;
HANDLE hProcess;
BOOL CntrlC, CntrlB, Killed;
iJobNo = Options(argc, argv, _T("bc"), &CntrlB, &CntrlC, NULL);
/* ID , . */
JobNumber = _ttoi(argv [iJobNo]);
ProcessId = FindProcessId(JobNumber); /* . . */
hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, ProcessId);
if (hProcess == NULL) { /* ID . */
ReportError(_T(" .\n"), 0, FALSE);
return 2;
}
if (CntrlB) GenerateConsoleCtrlEvent(CTRL_BREAK_EVENT, ProcessId);
else if (CntrlC) GenerateConsoleCtrlEvent(CTRL_C_EVENT, ProcessId);
else TerminateProcess(hProcess, JM_EXIT_CODE);
WaitForSingleObject(hProcess, 5000);
CloseHandle(hProcess);
_tprintf(T(" [%d] \n"), JobNumber);
return 0;
}
, jobbg , Get JobNumber ( 6.4) , , . - , . ' , , .
