Mercurial > hg > xemacs-beta
annotate lib-src/wakeup.c @ 4448:fd8a9a4d81d9
Support #!, to allow XEmacs to be called as a script interpreter.
ChangeLog addition:
2008-01-20 Aidan Kehoe <kehoea@parhasard.net>
* Makefile.in.in (SHEBANG_PROGNAME):
New variable; a symbol link to the XEmacs binary to tell it it
should read a script from stdin.
* configure.ac (XE_EXPAND_VARIABLE):
Set SHEBANG_PROGNAME.
* configure:
Regenerate.
src/ChangeLog addition:
2008-01-20 Aidan Kehoe <kehoea@parhasard.net>
* config.h.in: Add SHEBANG_PROGNAME.
* emacs.c (main_1):
If we've been called using SHEBANG_PROGNAME, rewrite our arguments
to add a --script argument.
Also, handle the --script argument by setting noninteractive and
vanilla.
* lread.c (Fload_internal):
If the first two characters of a file are #!, replace them with ;!
before they get to the Lisp reader.
lisp/ChangeLog addition:
2008-01-20 Aidan Kehoe <kehoea@parhasard.net>
* startup.el (command-line-do-script): New.
(command-switch-alist): Use command-line-do-script.
New argument, compatible with GNU; --script or -script says "treat
the following argument as a file to load in batch mode".
man/ChangeLog addition:
2008-01-20 Aidan Kehoe <kehoea@parhasard.net>
* xemacs/cmdargs.texi (Command Switches):
Describe --script, -script.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sun, 20 Jan 2008 19:53:54 +0100 |
| parents | abe6d1db359e |
| children |
| rev | line source |
|---|---|
| 428 | 1 /* Program to produce output at regular intervals. */ |
| 2 | |
| 438 | 3 #include <config.h> |
| 428 | 4 |
| 5 #if __STDC__ || defined(STDC_HEADERS) | |
| 6 #include <stdlib.h> | |
| 442 | 7 #ifdef HAVE_UNISTD_H |
| 428 | 8 #include <unistd.h> |
| 9 #endif | |
| 442 | 10 #endif |
| 428 | 11 |
| 12 #include <stdio.h> | |
| 13 #include <sys/types.h> | |
| 14 | |
| 442 | 15 #ifdef WIN32_NATIVE |
| 428 | 16 #define WIN32_LEAN_AND_MEAN |
| 17 #include <windows.h> | |
| 18 #undef sleep | |
| 19 #define sleep(t) Sleep ((t) * 1000) | |
| 20 #define getppid() (0) | |
| 21 #undef HAVE_SYS_TIME_H | |
| 442 | 22 #endif /* WIN32_NATIVE */ |
| 428 | 23 |
| 24 #ifdef TIME_WITH_SYS_TIME | |
| 25 #include <sys/time.h> | |
| 26 #include <time.h> | |
| 27 #else | |
| 28 #ifdef HAVE_SYS_TIME_H | |
| 29 #include <sys/time.h> | |
| 30 #else | |
| 31 #include <time.h> | |
| 32 #endif | |
| 33 #endif | |
| 34 | |
| 35 int | |
| 36 main (int argc, char *argv[]) | |
| 37 { | |
| 38 int period = 60; | |
| 39 | |
| 40 if (argc > 1) | |
| 41 period = atoi (argv[1]); | |
| 42 | |
| 43 while (1) | |
| 44 { | |
| 45 /* Make sure wakeup stops when Emacs goes away. */ | |
| 46 if (getppid () == 1) | |
| 47 return 0; | |
| 48 printf ("Wake up!\n"); | |
| 49 /* If fflush fails, then our stdout pipe is broken. */ | |
| 50 if (fflush (stdout) != 0) | |
| 51 return 0; | |
| 52 /* If using a period of 60, produce the output when the minute | |
| 53 changes. */ | |
| 54 if (period == 60) | |
| 55 { | |
| 56 time_t when; | |
| 57 struct tm *tp; | |
| 58 time (&when); | |
| 59 tp = localtime (&when); | |
| 60 sleep (60 - tp->tm_sec); | |
| 61 } | |
| 62 else | |
| 63 sleep (period); | |
| 64 } | |
| 65 } |