1 files changed, 121 insertions, 0 deletions
diff --git a/src/mongo/bson/util/misc.h b/src/mongo/bson/util/misc.h
new file mode 100644
index 00000000000..b547c981bdf
--- /dev/null
+++ b/src/mongo/bson/util/misc.h
@@ -0,0 +1,121 @@
+/* @file misc.h 
+*/
+
+/*
+ *    Copyright 2009 10gen Inc.
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+#pragma once
+
+#include <ctime>
+
+namespace mongo {
+
+    using namespace std;
+
+    inline void time_t_to_String(time_t t, char *buf) {
+#if defined(_WIN32)
+        ctime_s(buf, 32, &t);
+#else
+        ctime_r(&t, buf);
+#endif
+        buf[24] = 0; // don't want the \n
+    }
+
+    inline string time_t_to_String(time_t t = time(0) ) {
+        char buf[64];
+#if defined(_WIN32)
+        ctime_s(buf, sizeof(buf), &t);
+#else
+        ctime_r(&t, buf);
+#endif
+        buf[24] = 0; // don't want the \n
+        return buf;
+    }
+
+    inline string time_t_to_String_no_year(time_t t) {
+        char buf[64];
+#if defined(_WIN32)
+        ctime_s(buf, sizeof(buf), &t);
+#else
+        ctime_r(&t, buf);
+#endif
+        buf[19] = 0;
+        return buf;
+    }
+
+    inline string time_t_to_String_short(time_t t) {
+        char buf[64];
+#if defined(_WIN32)
+        ctime_s(buf, sizeof(buf), &t);
+#else
+        ctime_r(&t, buf);
+#endif
+        buf[19] = 0;
+        if( buf[0] && buf[1] && buf[2] && buf[3] )
+            return buf + 4; // skip day of week
+        return buf;
+    }
+
+    struct Date_t {
+        // TODO: make signed (and look for related TODO's)
+        unsigned long long millis;
+        Date_t(): millis(0) {}
+        Date_t(unsigned long long m): millis(m) {}
+        operator unsigned long long&() { return millis; }
+        operator const unsigned long long&() const { return millis; }
+        void toTm (tm *buf) {
+            time_t dtime = (time_t) millis/1000;
+#if defined(_WIN32)
+            gmtime_s(buf, &dtime);
+#else
+            gmtime_r(&dtime, buf);
+#endif
+        }
+        string toString() const {
+            char buf[64];
+            time_t_to_String(millis/1000, buf);
+            return buf;
+        }
+    };
+
+    // Like strlen, but only scans up to n bytes.
+    // Returns -1 if no '0' found.
+    inline int strnlen( const char *s, int n ) {
+        for( int i = 0; i < n; ++i )
+            if ( !s[ i ] )
+                return i;
+        return -1;
+    }
+
+    inline bool isNumber( char c ) {
+        return c >= '0' && c <= '9';
+    }
+
+    inline unsigned stringToNum(const char *str) {
+        unsigned x = 0;
+        const char *p = str;
+        while( 1 ) {
+            if( !isNumber(*p) ) {
+                if( *p == 0 && p != str )
+                    break;
+                throw 0;
+            }
+            x = x * 10 + *p++ - '0';
+        }
+        return x;
+    }
+
+}