goahead 部分代码抽取学习

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#include "stdafx.h" #include <iostream> using namespace std; typedef time_t WebsTime; typedef unsigned long ulong; typedef unsigned char uchar; typedef struct WebsMime {     char    *type;                          /**< Mime type */     char    *ext;                           /**< File extension */ } WebsMime; typedef struct WebsFileInfo {     ulong           size;                   /**< File length */     int             isDir;                  /**< Set if directory */     WebsTime        mtime;                  /**< Modified time */ } WebsFileInfo; typedef long long int int64; typedef int64 Offset; typedef struct WebsRomIndex {     char            *path;                  /**< Web page URL path */     uchar           *page;                  /**< Web page data */     int             size;                   /**< Size of web page in bytes */     Offset          pos;                    /**< Current read position */ } WebsRomIndex; #include <stdio.h> #include <assert.h> #define PUBLIC #define PUBLIC_DATA extern #define PRIVATE     static typedef const char cchar; typedef size_t ssize; #define MAXINT 256 #include <string.h> PUBLIC ssize slen(cchar *s) {     return s ? strlen(s) : 0; } PUBLIC ssize scopy(char *dest, ssize destMax, cchar *src) {     ssize      len;       assert(src);     assert(dest);     assert(0 < dest && destMax < MAXINT);       len = slen(src);     if (destMax <= len) {         if (destMax > 0) {             *dest = '\0';         }         return -1;     }     strcpy(dest, src);     return len; } typedef void (*WebsMemNotifier)(ssize size); static WebsMemNotifier memNotifier;   PUBLIC void *walloc(ssize num) {     void    *mem;       if ((mem = malloc(num)) == 0) {         if (memNotifier) {             (memNotifier)(num);         }     }     return mem; }     PUBLIC void wfree(void *mem) {     if (mem) {         free(mem);     } }   typedef struct WebsBuf {     char    *buf;               /**< Holding buffer for data */     char    *servp;             /**< Pointer to start of data */     char    *endp;              /**< Pointer to end of data */     char    *endbuf;            /**< Pointer to end of buffer */     ssize   buflen;             /**< Length of ring queue */     ssize   maxsize;            /**< Maximum size */     int     increment;          /**< Growth increment */ } WebsBuf; typedef int Socket; typedef int (*SocketAccept)(int sid, cchar *ipaddr, int port, int listenSid); typedef void (*SocketHandler)(int sid, int mask, void *data); typedef struct WebsSocket {     WebsBuf         lineBuf;            /**< Line ring queue */     SocketAccept    accept;             /**< Accept handler */     SocketHandler   handler;            /**< User I/O handler */     char            *ip;                /**< Server listen address or remote client address */     void            *handler_data;      /**< User handler data */     int             handlerMask;        /**< Handler events of interest */     int             sid;                /**< Index into socket[] */     int             port;               /**< Port to listen on */     int             flags;              /**< Current state flags */     Socket          sock;               /**< Actual socket handle */     int             fileHandle;         /**< ID of the file handler */     int             interestEvents;     /**< Mask of events to watch for */     int             currentEvents;      /**< Mask of ready events (FD_xx) */     int             selectEvents;       /**< Events being selected */     int             saveMask;           /**< saved Mask for socketFlush */     int             error;              /**< Last error */     int             secure;             /**< Socket is using SSL */     int             handshakes;         /**< Number of renegotiations */ } WebsSocket;   int main() {     const char* str = "sdfsfds";     char *abc=(char*)walloc(100);     wfree(abc);     cout<<slen(str)<<endl;     system("PAUSE");     return 0; }