diff options
Diffstat (limited to 'util/builder.h')
-rw-r--r-- | util/builder.h | 134 |
1 files changed, 67 insertions, 67 deletions
diff --git a/util/builder.h b/util/builder.h index ddc49ec2c91..67b8c38d87f 100644 --- a/util/builder.h +++ b/util/builder.h @@ -1,67 +1,67 @@ -/* builder.h
-
-*/
-
-#pragma once
-
-#include "../stdafx.h"
-
-class BufBuilder {
-public:
- BufBuilder(int initsize = 512) : size(initsize) {
- data = (char *) malloc(size); assert(data);
- l = 0;
- }
- ~BufBuilder() { kill(); }
-
- void kill() {
- if( data ) {
- free(data);
- data = 0;
- }
- }
-
- /* leave room for some stuff later */
- void skip(int n) { grow(n); }
-
- /* note this may be deallocated (realloced) if you keep writing. */
- char* buf() { return data; }
-
- /* assume ownership of the buffer - you must then free it */
- void decouple() { data = 0; }
-
- template<class T> void append(T j) { *((T*)grow(sizeof(T))) = j; }
- void append(short j) { append<short>(j); }
- void append(int j) { append<int>(j); }
- void append(unsigned j) { append<unsigned>(j); }
- void append(bool j) { append<bool>(j); }
- void append(double j) { append<double>(j); }
-
- void append(void *src, int len) { memcpy(grow(len), src, len); }
-
- void append(const char *str) {
- append((void*) str, strlen(str)+1);
- }
-
- int len() { return l; }
-
-private:
- /* returns the pre-grow write position */
- char* grow(int by) {
- int oldlen = l;
- l += by;
- if( l > size ) {
- int a = size * 2;
- if( l > a )
- a = l + 16 * 1024;
- assert( a < 64 * 1024 * 1024 );
- data = (char *) realloc(data, a);
- size= a;
- }
- return data + oldlen;
- }
-
- char *data;
- int l;
- int size;
-};
+/* builder.h + +*/ + +#pragma once + +#include "../stdafx.h" + +class BufBuilder { +public: + BufBuilder(int initsize = 512) : size(initsize) { + data = (char *) malloc(size); assert(data); + l = 0; + } + ~BufBuilder() { kill(); } + + void kill() { + if( data ) { + free(data); + data = 0; + } + } + + /* leave room for some stuff later */ + void skip(int n) { grow(n); } + + /* note this may be deallocated (realloced) if you keep writing. */ + char* buf() { return data; } + + /* assume ownership of the buffer - you must then free it */ + void decouple() { data = 0; } + + template<class T> void append(T j) { *((T*)grow(sizeof(T))) = j; } + void append(short j) { append<short>(j); } + void append(int j) { append<int>(j); } + void append(unsigned j) { append<unsigned>(j); } + void append(bool j) { append<bool>(j); } + void append(double j) { append<double>(j); } + + void append(void *src, int len) { memcpy(grow(len), src, len); } + + void append(const char *str) { + append((void*) str, strlen(str)+1); + } + + int len() { return l; } + +private: + /* returns the pre-grow write position */ + char* grow(int by) { + int oldlen = l; + l += by; + if( l > size ) { + int a = size * 2; + if( l > a ) + a = l + 16 * 1024; + assert( a < 64 * 1024 * 1024 ); + data = (char *) realloc(data, a); + size= a; + } + return data + oldlen; + } + + char *data; + int l; + int size; +}; |