blackball

// hooks for future customizing 
typedef int (db_log_fnc)(const char *fmt, ... );
typedef void* (db_malloc_fnc)(size_t sz);
typedef void* (db_realloc_fnc)(void *ptr, size_t sz);
typedef void (db_free_fnc)(void *ptr);
typedef void (db_exit_fnc)(int status);

struct _db_hook
{
  db_log_fnc *log;

blackball

// hooks for future customizing 
typedef int (db_log_fnc)(const char *fmt, ... );
typedef void* (db_malloc_fnc)(size_t sz);
typedef void* (db_realloc_fnc)(void *ptr, size_t sz);
typedef void (db_free_fnc)(void *ptr);
typedef void (db_exit_fnc)(int status);

struct _db_hook
{
  db_log_fnc *log;

blackball

// hooks for future customizing 
typedef int   (db_log_fnc)(const char *fmt, ... );
typedef void* (db_malloc_fnc)(size_t sz);
typedef void* (db_realloc_fnc)(void *ptr, size_t sz);
typedef void  (db_free_fnc)(void *ptr);
typedef void  (db_exit_fnc)(int status);

struct _db_hook
{
  db_log_fnc     *log;

blackball

void pack_double(struct db *database, double d[], int n)
{
  int len = sizeof(double) * n;
  struct db_node *node = new_node(len);
  memcpy(node->data, d, len);
  dump(database, node);
}

int unpack_double(struct db *database, double d[], int n, int idx)
{

blackball

int pack_arr(struct db *dbase, void *data, int len)
{
  int code = -1;

  struct db_node *node = new_node(len);
  memcpy(node->data, data, len);
  // insert node into dbase
  dump(dbase, node);
  
  code = 0;

blackball

//----------.h file ------------
#ifndef MYVIDEOWIDGET_H
#define MYVIDEOWIDGET_H

#include <QtOpenGL/QtOpenGL>
#include <QtGui/QImage>

class MyVideoWidget : public QGLWidget
{
    Q_OBJECT

blackball

#!/usr/bin/python

"""
Simulate a command pipe in windows.
reason: I always need to do batch processing 
in my dailylife, rename a bunch of files, 
generate some sets from it, and move files 
into different folders. Or, I have a module,
and I need to processing lots of file, but,
this module can only process one at most, and I

blackball

#include "vpack.h"
#include <stdio.h>

struct Model
{
  char c;
  int pts[4];
  float vec[1024];
};
  

blackball

/* Simple linked-list demo */

typedef struct node{
  void *data;
  struct node *next;
  struct node *prev;
} node;

node* create(node **ns, void *data);
node* search(node **ns, void *data);

blackball

/**
 * Binary search tree, a C implementation.
 *
 * I hope it could be a bit more efficient ;)
 *
 * @blackball
 */
#include <stdlib.h>

/* for futher use */