merged disctools and exec into this directory.

Added iocsh wrapper with flexible EPICS version handling
2011-11-28 14:18:37 +00:00
parent 8281a7c778
commit 8674e81a42
7 changed files with 755 additions and 6 deletions
@@ -0,0 +1,105 @@
+/*
+* exec - execute shell commands.
+*
+* $Author: zimoch $
+* $ID$
+* $Date: 2011/11/28 14:18:37 $
+*
+* DISCLAIMER: Use at your own risc and so on. No warranty, no refund.
+*/
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <iocsh.h>
+#include <stdio.h>
+#ifdef UNIX
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <string.h>
+#include <malloc.h>
+#include <errno.h>
+#endif
+#include <epicsExport.h>
+
+#ifdef UNIX
+static const iocshArg execArg0 = { "command", iocshArgString };
+static const iocshArg execArg1 = { "arguments", iocshArgArgv };
+static const iocshArg * const execArgs[2] = { &execArg0, &execArg1 };
+static const iocshFuncDef execDef = { "exec", 2, execArgs };
+static const iocshFuncDef exclDef = { "!", 2, execArgs }; /* alias */
+
+static void execFunc (const iocshArgBuf *args)
+{
+    int i;
+    int status;
+    char commandline [256];
+    char *p = commandline;
+
+    if (args[0].sval == NULL)
+    {
+        fprintf(stderr, "missing command\n");
+        return;
+    }
+    p += sprintf(p, "\"%s\"", args[0].sval);
+    for (i = 1; i < args[1].aval.ac; i++)
+    {
+        p += sprintf(p, " \"%s\"", args[1].aval.av[i]);
+    }
+    status = system(commandline);
+    if (WIFSIGNALED(status))
+    {
+#ifdef __USE_GNU
+        fprintf (stderr, "%s killed by signal %d: %s\n",
+            args[0].sval, WTERMSIG(status), strsignal(WTERMSIG(status)));
+#else
+        fprintf (stderr, "%s killed by signal %d: statuscode %d\n",
+            args[0].sval, WTERMSIG(status), WTERMSIG(status));
+
+#endif
+    }
+    if (WEXITSTATUS(status))
+    {
+        fprintf (stderr, "exit status is %d\n", WEXITSTATUS(status));
+    }
+}
+
+/* sleep */
+static const iocshArg sleepArg0 = { "seconds", iocshArgDouble };
+static const iocshArg * const sleepArgs[1] = { &sleepArg0 };
+static const iocshFuncDef sleepDef = { "sleep", 1, sleepArgs };
+
+static void sleepFunc (const iocshArgBuf *args)
+{
+    struct timespec sleeptime;
+
+    sleeptime.tv_sec = (long) args[0].dval;
+    sleeptime.tv_nsec = (long) ((args[0].dval - (long) args[0].dval) * 1000000000);
+    while (nanosleep (&sleeptime, &sleeptime) == -1)
+    {
+        if (errno != EINTR)
+        {
+            perror("sleep");
+            break;
+        }
+    }
+}
+#endif
+
+static void
+execRegister(void)
+{
+    static int firstTime = 1;
+    if (firstTime) {
+#ifdef UNIX
+        iocshRegister (&execDef, execFunc);
+        iocshRegister (&exclDef, execFunc);
+        iocshRegister (&sleepDef, sleepFunc);
+#endif
+        firstTime = 0;
+    }
+}
+
+epicsExportRegistrar(execRegister);