From a1fabeeb06d51b385283e8c4c89bea5cd28d970f Mon Sep 17 00:00:00 2001
From: oharboe <oharboe>
Date: Mon, 14 Jul 2008 14:25:34 +0000
Subject: 	* signals ( not complete , no eventscripts yet ) sleep and
 usleep 	   [pit] point in time and [jpit] julian point in time.

---
 jim-posix.c | 245 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 245 insertions(+)

(limited to 'jim-posix.c')

diff --git a/jim-posix.c b/jim-posix.c
index 8fddeaf..ba4e156 100644
--- a/jim-posix.c
+++ b/jim-posix.c
@@ -18,8 +18,10 @@
  */
 
 #include <sys/types.h>
+#include <sys/time.h>
 #include <unistd.h>
 #include <string.h>
+#include <signal.h>
 #include <errno.h>
 
 #define JIM_EXTENSION
@@ -118,7 +120,246 @@ static int Jim_PosixSethostnameCommand(Jim_Interp *interp, int argc,
     }
     return JIM_OK;
 }
+// added Commands, some linux specific
 
+// uses POSIX.1b
+#define S_NS 1000000000
+#define S_US    1000000
+#define MSNS    1000000
+#define USNS       1000
+#define NSNS          1
+
+static int Jim_LinuxUSleepCommand(Jim_Interp *interp, int argc,
+        Jim_Obj *const *argv)
+{
+    int mult = NSNS ;
+    double floatValue ;
+    const char *units ;
+    long long delay ;
+    int len ;
+    struct timespec tv;
+	
+    switch (argc) { 
+    case 3: 
+           units = Jim_GetString(argv[2], &len);
+	   if (units == NULL)
+               return JIM_ERR;
+	   switch (*units) {
+	   case 's': mult = S_NS; break;
+	   case 'm': mult = MSNS; break;
+	   case 'u': mult = USNS; break;
+	   case 'n': mult = NSNS; break;
+	   default:
+               Jim_WrongNumArgs(interp, 1, argv, "arg3: ms us ns or empty");
+	       return JIM_ERR;
+	   }
+	// fallthrough
+    case 2: if (Jim_GetDouble(interp, argv[1], &floatValue) != JIM_OK)
+               return JIM_ERR;
+	   delay = (long long)(floatValue * mult);
+           break;
+    default:
+           Jim_WrongNumArgs(interp, 1, argv, "?useconds?");
+           return JIM_ERR;
+    }
+    tv.tv_sec = delay / S_NS;
+    tv.tv_nsec = delay % S_NS;
+    fprintf(stderr,"delay: %lld mult: %d  sec: %ld ns: %ld\n", delay, mult, tv.tv_sec,tv.tv_nsec );
+    nanosleep(&tv,NULL);
+    return JIM_OK;
+}
+
+static int Jim_PointInTimeCommand(Jim_Interp *interp, int argc,
+        Jim_Obj *const *argv)
+{
+    struct timezone tz = { 0, 0 };
+    double pit ;
+    struct timeval tv;
+
+    gettimeofday(&tv,&tz);
+    pit = (double)tv.tv_usec;
+    pit /= (double)S_US;
+    pit +=(double)tv.tv_sec;
+    
+    Jim_SetResult(interp, Jim_NewDoubleObj(interp, pit));
+    return JIM_OK;
+}
+
+static int Jim_PointInTimeJulianCommand(Jim_Interp *interp, int argc,
+        Jim_Obj *const *argv)
+{
+    struct timezone tz = { 0, 0 };
+    double pit ;
+    struct timeval tv;
+
+    gettimeofday(&tv,&tz);
+    pit  = (double)tv.tv_usec;
+    pit /= (double)S_US;
+    pit += (double)tv.tv_sec;
+    pit /= (double)( 60 * 60 * 24 );
+    pit +=  2440587.5;
+    
+    Jim_SetResult(interp, Jim_NewDoubleObj(interp, pit));
+    return JIM_OK;
+}
+
+// signal stuff
+// signal <signame>
+
+    static const char *signames[] = {
+	"SIGHUP", 	"SIGINT", 	"SIGQUIT", 	"SIGILL", 
+	"SIGABRT", 	"SIGFPE", 	"SIGKILL",	"SIGSEGV",
+	"SIGPIPE",	"SIGALRM", 	"SIGTERM",
+	"SIGUSR1", 	"SIGUSR2",	
+	"SIGCHLD",	"SIGCONT",	"SIGSTOP", 
+	"SIGTSTP",	"SIGTTIN"	"SIGTTOU",	
+	"SIGBUS",	"SIGPOLL",	"SIGPROF",	"SIGSYS",	
+	"SIGTRAP",	"SIGURG",	"SIGVTALRM",	"SIGXCPU",
+	"SIGXFSZ",	
+	"SIGIOT",	
+#ifdef SIGEMT
+	"SIGEMT",	
+#endif
+	"SIGSTKFLT",	"SIGIO",
+	"SIGCLD",	"SIGPWR",
+#ifdef SIGINFO
+	"SIGINFO",
+#endif
+#ifdef SIGLOST
+	"SIGLOST",
+#endif
+	"SIGWINCH",	"SIGUNUSED",
+	"SIGRT32",	"SIGRT33",	"SIGRT34",	"SIGRT35",	
+	"SIGRT36",      "SIGRT37",      "SIGRT38",      "SIGRT39",
+	NULL
+    } ;
+static	int signums[] =  {
+	SIGHUP, 	SIGINT, 	SIGQUIT, 	SIGILL, 
+	SIGABRT, 	SIGFPE, 	SIGKILL,	SIGSEGV,
+	SIGPIPE,	SIGALRM, 	SIGTERM,	
+	SIGUSR1, 	SIGUSR2,	
+	SIGCHLD,	SIGCONT,	SIGSTOP, 
+	SIGTSTP,	SIGTTIN,	SIGTTOU,	
+	SIGBUS,	SIGPOLL,	SIGPROF,	SIGSYS,	
+	SIGTRAP,	SIGURG,	SIGVTALRM,	SIGXCPU,
+	SIGXFSZ,	
+	SIGIOT,	
+#ifdef SIGEMT
+	SIGEMT,	
+#endif
+	SIGSTKFLT,	SIGIO,
+	SIGCLD,	SIGPWR,	
+#ifdef SIGINFO
+	SIGINFO,	
+#endif
+#ifdef SIGLOST
+	SIGLOST,
+#endif
+	SIGWINCH,	SIGUNUSED,
+#ifdef SIGRT
+	SIGRT32,	SIGRT33,	SIGRT34,	SIGRT35,	
+	SIGRT36,	SIGRT37,	SIGRT38,	SIGRT39,
+#endif
+	0
+    } ;
+enum {      
+	HUP, 	INT, 	QUIT, 	ILL, 
+	ABRT, 	FPE, 	KILL,	SEGV,
+	PIPE,	ALRM, 	TERM,	
+	USR1, 	USR2,	
+	CHLD,	CONT,	STOP, 
+	TSTP,	TTIN,	TTOU,	
+	BUS,	POLL,	PROF,	SYS,	
+	TRAP,	URG,	VTALRM,	XCPU,
+	XFSZ,	
+	IOT,	
+#ifdef SIGEMT
+	EMT,	
+#endif
+	STKFLT,	IO,
+	CLD,	PWR,	
+#ifdef SIGINFO
+	INFO,
+#endif
+#ifdef SIGLOST
+	LOST,
+#endif
+	WINCH,	UNUSED,
+#ifdef SIGRT
+	RT32,	RT33,	RT34,	RT35,	
+	RT36,	RT37,	RT38,	RT39,
+#endif
+	ISEND
+    } ;
+static void Jim_Posix_SigHandler(int signal)
+{
+    int i;
+    for (i=0; ((i<ISEND) && (signums[i] != signal));i++) ;
+    fprintf(stderr,"signal %d %s\n", signal,signames[i]);
+}
+
+typedef void (*sighandler_t)(int);
+
+static int Jim_PosixSignalCommand(Jim_Interp *interp, int argc,
+        Jim_Obj *const *argv)
+{
+    int sig;
+    int signum;
+    sighandler_t lastaction;
+    sighandler_t nextaction = SIG_DFL;
+    const char *op;
+    int strlen = 0;
+
+    if (argc < 2) {
+        Jim_WrongNumArgs(interp, 1, argv, "signame ?action ...?");
+        return JIM_ERR;
+    }
+    if (Jim_GetEnum(interp, argv[1], signames, &sig, "Signal Names",
+                JIM_ERRMSG) != JIM_OK)
+        return JIM_ERR;
+
+    signum = signums[sig];
+
+    switch (argc) {
+    case 3:
+	if (op = Jim_GetString(argv[2], &strlen),strlen == 0) {
+        	return JIM_ERR;
+        }
+	if (strcmp("default",op) == 0) {
+		nextaction = SIG_DFL;
+	} else if (strcmp("ignore",op) == 0) {
+		nextaction = SIG_IGN;
+	} else if (strcmp("debug",op) == 0) {
+		nextaction = Jim_Posix_SigHandler;
+	} else {
+		// this is the place to insert a script! UK
+	}
+	// fall through to query case:
+    case 2:
+	lastaction = signal(signum, nextaction);
+	if (argc==2)
+		signal(signum, lastaction);
+	if (lastaction == SIG_ERR) {
+		return JIM_ERR;
+	}
+	if (lastaction == SIG_DFL) {
+		Jim_SetResultString(interp, "default", -1);
+		return JIM_OK;
+	}
+	if (lastaction == SIG_IGN) {
+		Jim_SetResultString(interp, "ignore", -1);
+		return JIM_OK;
+	} 
+	Jim_SetResultString(interp, "function", -1);
+	return JIM_OK;
+    }
+
+    return JIM_OK;
+}
+	
+
+	
+// end added 
 int Jim_OnLoad(Jim_Interp *interp)
 {
     Jim_InitExtension(interp);
@@ -129,5 +370,9 @@ int Jim_OnLoad(Jim_Interp *interp)
     Jim_CreateCommand(interp, "os.getids", Jim_PosixGetidsCommand, NULL, NULL);
     Jim_CreateCommand(interp, "os.gethostname", Jim_PosixGethostnameCommand, NULL, NULL);
     Jim_CreateCommand(interp, "os.sethostname", Jim_PosixSethostnameCommand, NULL, NULL);
+    Jim_CreateCommand(interp, "os.usleep", Jim_LinuxUSleepCommand, NULL, NULL);
+    Jim_CreateCommand(interp, "os.signal", Jim_PosixSignalCommand, NULL, NULL);
+    Jim_CreateCommand(interp, "pit",   Jim_PointInTimeCommand, NULL, NULL);
+    Jim_CreateCommand(interp, "Jpit",   Jim_PointInTimeJulianCommand, NULL, NULL);
     return JIM_OK;
 }
-- 
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