Mercurial > hg > xemacs-beta
diff nt/runemacs.c @ 183:e121b013d1f0 r20-3b18
Import from CVS: tag r20-3b18
author | cvs |
---|---|
date | Mon, 13 Aug 2007 09:54:23 +0200 |
parents | 4be1180a9e89 |
children | c9fe270a4101 |
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--- a/nt/runemacs.c Mon Aug 13 09:53:23 2007 +0200 +++ b/nt/runemacs.c Mon Aug 13 09:54:23 2007 +0200 @@ -1,130 +1,130 @@ -/* - Simple program to start Emacs with its console window hidden. - - This program is provided purely for convenience, since most users will - use Emacs in windowing (GUI) mode, and will not want to have an extra - console window lying around. */ - -/* - You may want to define this if you want to be able to install updated - emacs binaries even when other users are using the current version. - The problem with some file servers (notably Novell) is that an open - file cannot be overwritten, deleted, or even renamed. So if someone - is running emacs.exe already, you cannot install a newer version. - By defining CHOOSE_NEWEST_EXE, you can name your new emacs.exe - something else which matches "emacs*.exe", and runemacs will - automatically select the newest emacs executeable in the bin directory. - (So you'll probably be able to delete the old version some hours/days - later). -*/ - -/* #define CHOOSE_NEWEST_EXE */ - -#define WIN32 - -#include <windows.h> -#include <string.h> -#include <malloc.h> - -int WINAPI -WinMain (HINSTANCE hSelf, HINSTANCE hPrev, LPSTR cmdline, int nShow) -{ - STARTUPINFO start; - SECURITY_ATTRIBUTES sec_attrs; - SECURITY_DESCRIPTOR sec_desc; - PROCESS_INFORMATION child; - int wait_for_child = FALSE; - DWORD ret_code = 0; - char *new_cmdline; - char *p; - char modname[MAX_PATH]; - - if (!GetModuleFileName (NULL, modname, MAX_PATH)) - goto error; - if ((p = strrchr (modname, '\\')) == NULL) - goto error; - *p = 0; - - new_cmdline = alloca (MAX_PATH + strlen (cmdline) + 1); - strcpy (new_cmdline, modname); - -#ifdef CHOOSE_NEWEST_EXE - { - /* Silly hack to allow new versions to be installed on - server even when current version is in use. */ - - char * best_name = alloca (MAX_PATH + 1); - FILETIME best_time = {0,0}; - WIN32_FIND_DATA wfd; - HANDLE fh; - p = new_cmdline + strlen (new_cmdline); - strcpy (p, "\\emacs*.exe "); - fh = FindFirstFile (new_cmdline, &wfd); - if (fh == INVALID_HANDLE_VALUE) - goto error; - do - { - if (wfd.ftLastWriteTime.dwHighDateTime > best_time.dwHighDateTime - || (wfd.ftLastWriteTime.dwHighDateTime == best_time.dwHighDateTime - && wfd.ftLastWriteTime.dwLowDateTime > best_time.dwLowDateTime)) - { - best_time = wfd.ftLastWriteTime; - strcpy (best_name, wfd.cFileName); - } - } - while (FindNextFile (fh, &wfd)); - FindClose (fh); - *p++ = '\\'; - strcpy (p, best_name); - strcat (p, " "); - } -#else - strcat (new_cmdline, "\\emacs.exe "); -#endif - - /* Append original arguments if any; first look for -wait as first - argument, and apply that ourselves. */ - if (strncmp (cmdline, "-wait", 5) == 0) - { - wait_for_child = TRUE; - cmdline += 5; - } - strcat (new_cmdline, cmdline); - - /* Set emacs_dir variable if runemacs was in "%emacs_dir%\bin". */ - if ((p = strrchr (modname, '\\')) && stricmp (p, "\\bin") == 0) - { - *p = 0; - for (p = modname; *p; p++) - if (*p == '\\') *p = '/'; - SetEnvironmentVariable ("emacs_dir", modname); - } - - memset (&start, 0, sizeof (start)); - start.cb = sizeof (start); - start.dwFlags = STARTF_USESHOWWINDOW; - start.wShowWindow = SW_HIDE; - - sec_attrs.nLength = sizeof (sec_attrs); - sec_attrs.lpSecurityDescriptor = NULL; - sec_attrs.bInheritHandle = FALSE; - - if (CreateProcess (NULL, new_cmdline, &sec_attrs, NULL, TRUE, 0, - NULL, NULL, &start, &child)) - { - if (wait_for_child) - { - WaitForSingleObject (child.hProcess, INFINITE); - GetExitCodeProcess (child.hProcess, &ret_code); - } - CloseHandle (child.hThread); - CloseHandle (child.hProcess); - } - else - goto error; - return (int) ret_code; - -error: - MessageBox (NULL, "Could not start Emacs.", "Error", MB_ICONSTOP); - return 1; -} +/* + Simple program to start Emacs with its console window hidden. + + This program is provided purely for convenience, since most users will + use Emacs in windowing (GUI) mode, and will not want to have an extra + console window lying around. */ + +/* + You may want to define this if you want to be able to install updated + emacs binaries even when other users are using the current version. + The problem with some file servers (notably Novell) is that an open + file cannot be overwritten, deleted, or even renamed. So if someone + is running emacs.exe already, you cannot install a newer version. + By defining CHOOSE_NEWEST_EXE, you can name your new emacs.exe + something else which matches "emacs*.exe", and runemacs will + automatically select the newest emacs executeable in the bin directory. + (So you'll probably be able to delete the old version some hours/days + later). +*/ + +/* #define CHOOSE_NEWEST_EXE */ + +#define WIN32 + +#include <windows.h> +#include <string.h> +#include <malloc.h> + +int WINAPI +WinMain (HINSTANCE hSelf, HINSTANCE hPrev, LPSTR cmdline, int nShow) +{ + STARTUPINFO start; + SECURITY_ATTRIBUTES sec_attrs; + SECURITY_DESCRIPTOR sec_desc; + PROCESS_INFORMATION child; + int wait_for_child = FALSE; + DWORD ret_code = 0; + char *new_cmdline; + char *p; + char modname[MAX_PATH]; + + if (!GetModuleFileName (NULL, modname, MAX_PATH)) + goto error; + if ((p = strrchr (modname, '\\')) == NULL) + goto error; + *p = 0; + + new_cmdline = alloca (MAX_PATH + strlen (cmdline) + 1); + strcpy (new_cmdline, modname); + +#ifdef CHOOSE_NEWEST_EXE + { + /* Silly hack to allow new versions to be installed on + server even when current version is in use. */ + + char * best_name = alloca (MAX_PATH + 1); + FILETIME best_time = {0,0}; + WIN32_FIND_DATA wfd; + HANDLE fh; + p = new_cmdline + strlen (new_cmdline); + strcpy (p, "\\xemacs*.exe "); + fh = FindFirstFile (new_cmdline, &wfd); + if (fh == INVALID_HANDLE_VALUE) + goto error; + do + { + if (wfd.ftLastWriteTime.dwHighDateTime > best_time.dwHighDateTime + || (wfd.ftLastWriteTime.dwHighDateTime == best_time.dwHighDateTime + && wfd.ftLastWriteTime.dwLowDateTime > best_time.dwLowDateTime)) + { + best_time = wfd.ftLastWriteTime; + strcpy (best_name, wfd.cFileName); + } + } + while (FindNextFile (fh, &wfd)); + FindClose (fh); + *p++ = '\\'; + strcpy (p, best_name); + strcat (p, " "); + } +#else + strcat (new_cmdline, "\\xemacs.exe "); +#endif + + /* Append original arguments if any; first look for -wait as first + argument, and apply that ourselves. */ + if (strncmp (cmdline, "-wait", 5) == 0) + { + wait_for_child = TRUE; + cmdline += 5; + } + strcat (new_cmdline, cmdline); + + /* Set emacs_dir variable if runemacs was in "%emacs_dir%\bin". */ + if ((p = strrchr (modname, '\\')) && stricmp (p, "\\bin") == 0) + { + *p = 0; + for (p = modname; *p; p++) + if (*p == '\\') *p = '/'; + SetEnvironmentVariable ("emacs_dir", modname); + } + + memset (&start, 0, sizeof (start)); + start.cb = sizeof (start); + start.dwFlags = STARTF_USESHOWWINDOW; + start.wShowWindow = SW_HIDE; + + sec_attrs.nLength = sizeof (sec_attrs); + sec_attrs.lpSecurityDescriptor = NULL; + sec_attrs.bInheritHandle = FALSE; + + if (CreateProcess (NULL, new_cmdline, &sec_attrs, NULL, TRUE, 0, + NULL, NULL, &start, &child)) + { + if (wait_for_child) + { + WaitForSingleObject (child.hProcess, INFINITE); + GetExitCodeProcess (child.hProcess, &ret_code); + } + CloseHandle (child.hThread); + CloseHandle (child.hProcess); + } + else + goto error; + return (int) ret_code; + +error: + MessageBox (NULL, "Could not start XEmacs.", "Error", MB_ICONSTOP); + return 1; +}