port perfnotes to windows addresses #1246

git-svn-id: file:///svn/toku/tokudb.1032b@8023 c7de825b-a66e-492c-adef-691d508d4ae1

windows/getopt.c

+#include <unistd.h>
+
+char *optarg;
+
+static const char *match(char c, const char *optstring) {
+    int i;
+    for (i=0;optstring[i]; i++)
+        if (c == optstring[i])
+            return &optstring[i];
+    return 0;
+}
+
+int getopt(int argc, char * const argv[], const char *optstring) {
+    static int lastargc = 0;
+    char *arg;
+    const char *theopt;
+    if (lastargc == 0) {
+        lastargc = 1;
+    }
+    optarg = 0;
+    if (lastargc >= argc) {
+        lastargc = 0;
+        return -1;
+    }
+    arg = argv[lastargc++];
+    if (arg[0] != '-') {
+        lastargc = 0;
+        return -1;
+    }
+    theopt = match(arg[1], optstring);
+    if (!theopt) {
+        lastargc = 0;
+        return -1;
+    }
+    if (theopt[1] == ':') {
+        if (arg[2])
+            optarg = &arg[2];
+        else if (lastargc >= argc) {
+            lastargc = 0;
+            return -1;
+        } else
+            optarg = argv[lastargc++];
+    }
+    return theopt[0];
+}
+