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Utiliser le mode DETACHED_PROCESS si le processus n'a pas de console 

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@2813 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
master
Xavier Leroy 2000-02-13 17:27:46 +00:00
parent 95476c7aea
commit ad03194571
1 changed files with 32 additions and 1 deletions
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33
otherlibs/win32unix/createprocess.c
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@ -19,12 +19,15 @@
/* From the Caml runtime */
extern char * searchpath(char * name);
static int win_has_console(void);
value win_create_process_native(value cmd, value cmdline, value env,
value fd1, value fd2, value fd3)
{
PROCESS_INFORMATION pi;
STARTUPINFO si;
char * exefile, * envp;
int flags;
exefile = searchpath(String_val(cmd));
if (exefile == NULL) exefile = String_val(cmd);
@ -33,16 +36,30 @@ value win_create_process_native(value cmd, value cmdline, value env,
} else {
envp = NULL;
}
/* Prepare stdin/stdout/stderr redirection */
GetStartupInfo(&si);
si.dwFlags |= STARTF_USESTDHANDLES;
si.hStdInput = Handle_val(fd1);
si.hStdOutput = Handle_val(fd2);
si.hStdError = Handle_val(fd3);
/* If we do not have a console window, then we must run
console mode applications as detached processes.
Otherwise, a new console is created and the redirections
are ignored. If we're running a GUI application, the
detached / non-detached flag doesn't matter. */
if (win_has_console())
flags = 0;
else
flags = DETACHED_PROCESS;
/* Create the process */
if (! CreateProcess(exefile, String_val(cmdline), NULL, NULL,
TRUE, 0, envp, NULL, &si, &pi)) {
TRUE, flags, envp, NULL, &si, &pi)) {
_dosmaperr(GetLastError());
uerror("create_process", cmd);
}
CloseHandle(pi.hThread);
/* Return the process handle as pseudo-PID
(this is consistent with the wait() emulation in the MSVC C library */
return Val_int(pi.hProcess);
}
@ -51,3 +68,17 @@ value win_create_process(value * argv, int argn) /* ML */
return win_create_process_native(argv[0], argv[1], argv[2],
argv[3], argv[4], argv[5]);
}
static int win_has_console(void)
{
HANDLE h;
h = CreateFile("CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (h == INVALID_HANDLE_VALUE) {
return 0;
} else {
CloseHandle(h);
return 1;
}
}