Changeset 6275 in orxonox.OLD for branches/network/src/lib/network/synchronizeable.h

Timestamp:

Dec 24, 2005, 2:15:49 PM (18 years ago)

Author:

rennerc

Message:

synchronizeable: added macros to help write/read data

File:

• branches/network/src/lib/network/synchronizeable.h (modified) (1 diff)

branches/network/src/lib/network/synchronizeable.h

@@ -21 +21 @@
 #define STATE_REQUESTEDSYNC 4
 
+
 //macros to help writing data in byte buffer
-#define SYNCHELP_WRITE_BEGIN() {  int __synchelp_write_i = 0; \
-                                  bool __synchelp_write_err = false; \
-                                  int __synchelp_write_n; }
+/*
+ * Important: these macros must be used in
+ *     SYNCHELP_READ_*:  virtual void      writeBytes(const byte* data, int length, int sender);
+ *     SYNCHELP_WRITE_*: virtual int       readBytes(byte* data, int maxLength, int * reciever);
+ * with the same argument names!
+ *
+ *
+ * Example 1:
+ *  SYNCHELP_READ_BEGIN();
+ *  SYNCHELP_READ_FLOAT(size);
+ *  SYNCHELP_READ_STRING( textureName, 1024 ); //1024 is the length of textureName
+ *
+ * Example 2:
+ *  SYNCHELP_WRITE_BEGIN();
+ *  SYNCHELP_WRITE_FLOAT(this->size);
+ *  SYNCHELP_WRITE_STRING(this->textureName);
+ *  return SYNCHELP_WRITE_N;
+ *
+ */
+#define SYNCHELP_WRITE_BEGIN()    int __synchelp_write_i = 0; \
+                                  int __synchelp_write_n
 #define SYNCHELP_WRITE_RESET() { __synchelp_write_i = 0; __synchelp_write_err = false; }
-#define SYNCHELP_WRITE_INT(i) { __synchelp_write_n =  }
-#define SYNCHELP_WIRTE_FLOAT()
-#define SYNCHELP_WRITE_BYTE()
-#define SYNCHELP_WRITE_STRING()
+#define SYNCHELP_WRITE_INT(i) { __synchelp_write_n = \
+                                Converter::intToByteArray( i, data+__synchelp_write_i, maxLength-__synchelp_write_i ); \
+                                if ( __synchelp_write_n <= 0) \
+{ \
+                                  PRINTF(1)("Buffer is too small to store a int\n"); \
+                                  return 0; \
+} \
+                                __synchelp_write_i += __synchelp_write_n; \
+}
+#define SYNCHELP_WRITE_FLOAT(f) { __synchelp_write_n = \
+                                Converter::floatToByteArray( f, data+__synchelp_write_i, maxLength-__synchelp_write_i ); \
+                                if ( __synchelp_write_n <= 0) \
+{ \
+                                  PRINTF(1)("Buffer is too small to store a float\n"); \
+                                  return 0; \
+} \
+                                __synchelp_write_i += __synchelp_write_n; \
+}
+#define SYNCHELP_WRITE_BYTE(b) { \
+                                if (maxLength - __synchelp_write_i < 1) \
+{ \
+                                  PRINTF(1)("Buffer is too small to store string\n"); \
+                                  return 0; \
+} \
+                                data[__synchelp_write_i] = b; \
+                                __synchelp_write_i++; \
+}
+#define SYNCHELP_WRITE_STRING(s) { __synchelp_write_n = \
+                                Converter::stringToByteArray( s, data+__synchelp_write_i, strlen(s), maxLength-__synchelp_write_i ); \
+                                if ( __synchelp_write_n <= 0) \
+{ \
+                                  PRINTF(1)("Buffer is too small to store string\n"); \
+                                  return 0; \
+} \
+                                __synchelp_write_i += __synchelp_write_n; \
+}
+#define SYNCHELP_WRITE_N __synchelp_write_i
+
+
+#define SYNCHELP_READ_BEGIN()     int __synchelp_read_i = 0; \
+                                  int __synchelp_read_n
+
+#define SYNCHELP_READ_INT(i)       { \
+                                    if ( length-__synchelp_read_i < INTSIZE ) \
+{ \
+                                      PRINTF(1)("There is not enough data to read an int\n");  \
+                                      return; \
+} \
+                                    __synchelp_read_i += Converter::byteArrayToInt( data+__synchelp_read_i, &i );  \
+}
+#define SYNCHELP_READ_FLOAT(f)    { \
+                                    if ( length-__synchelp_read_i < FLOATSIZE ) \
+{ \
+                                      PRINTF(1)("There is not enough data to read a flaot\n");  \
+                                      return; \
+} \
+                                    __synchelp_read_i += Converter::byteArrayToFloat( data+__synchelp_read_i, &f );  \
+}
+#define SYNCHELP_READ_STRING(s,l)    { \
+                                    __synchelp_read_n = Converter::byteArrayToString( data+__synchelp_read_i, s, l );  \
+                                    if ( __synchelp_read_n <0 )  \
+{ \
+                                      PRINTF(1)("There is not enough data to read string\n");  \
+                                      return; \
+} \
+}
+#define SYNCHELP_READ_BYTE(b)      { \
+                                    if ( length-__synchelp_read_i < 1 ) \
+{ \
+                                      PRINTF(1)("There is not enough data to read a byte\n");  \
+                                      return; \
+} \
+                                    b = data[__synchelp_read_i]; \
+                                    __synchelp_read_i ++;  \
+}
 
 class NetworkStream;