轉載地址 http://blog.csdn.net/kangroger/article/details/42500703 web
Web Bench是一個網站壓力測試的工具。其最後更新時間是2004年,已經十年多了。其源代碼總共才500多行,所有使用C語言編寫,最多能夠模擬上萬個併發鏈接。服務器
其原理也比較簡單,就是使用fork建立子進程,經過子進程來測試http鏈接,把測試結果寫到管道,再有父進程讀取管道信息來計算測試結果。流程圖下:網絡
![](http://static.javashuo.com/static/loading.gif)
其源代碼有2個文件組成併發
socket.c是建立socket鏈接的。主要的代碼在webbench.c中。socket
webbench.c中有幾個主要的函數。ide
static void usage(void)是在使用出錯時提示怎麼使用本程序。函數
void build_request(const char *url)是用來建立http鏈接請求的。工具
static int bench(void)中建立管道和子進程,調用測試http函數。測試
void benchcore(const char *host,const int port,const char *req)對http請求進行測試。網站
socket.c源代碼及註釋:
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <fcntl.h>
- #include <netinet/in.h>
- #include <arpa/inet.h>
- #include <netdb.h>
- #include <sys/time.h>
- #include <string.h>
- #include <unistd.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <stdarg.h>
-
-
-
-
-
-
-
- int Socket(const char *host, int clientPort)
- {
- int sock;
- unsigned long inaddr;
- struct sockaddr_in ad;
- struct hostent *hp;
-
- memset(&ad, 0, sizeof(ad));
- ad.sin_family = AF_INET;
-
- inaddr = inet_addr(host);
- if (inaddr != INADDR_NONE)
- memcpy(&ad.sin_addr, &inaddr, sizeof(inaddr));
- else
- {
- hp = gethostbyname(host);
- if (hp == NULL)
- return -1;
- memcpy(&ad.sin_addr, hp->h_addr, hp->h_length);
- }
- ad.sin_port = htons(clientPort);
-
- sock = socket(AF_INET, SOCK_STREAM, 0);
- if (sock < 0)
- return sock;
-
- if (connect(sock, (struct sockaddr *)&ad, sizeof(ad)) < 0)
- return -1;
- return sock;
- }
wenbench.c源代碼及註釋
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- #include "socket.c"
- #include <unistd.h>
- #include <sys/param.h>
- #include <rpc/types.h>
- #include <getopt.h>
- #include <strings.h>
- #include <time.h>
- #include <signal.h>
-
-
- volatile int timerexpired=0;
- int speed=0;
- int failed=0;
- int bytes=0;
-
-
- int http10=1;
-
- #define METHOD_GET 0
- #define METHOD_HEAD 1
- #define METHOD_OPTIONS 2
- #define METHOD_TRACE 3
- #define PROGRAM_VERSION "1.5"
- int method=METHOD_GET;
- int clients=1;
- int force=0;
- int force_reload=0;
- int proxyport=80;
- char *proxyhost=NULL;
- int benchtime=30;
-
- int mypipe[2];
- char host[MAXHOSTNAMELEN];
- #define REQUEST_SIZE 2048
- char request[REQUEST_SIZE];
-
-
- static const struct option long_options[]=
- {
- {"force",no_argument,&force,1},
- {"reload",no_argument,&force_reload,1},
- {"time",required_argument,NULL,'t'},
- {"help",no_argument,NULL,'?'},
- {"http09",no_argument,NULL,'9'},
- {"http10",no_argument,NULL,'1'},
- {"http11",no_argument,NULL,'2'},
- {"get",no_argument,&method,METHOD_GET},
- {"head",no_argument,&method,METHOD_HEAD},
- {"options",no_argument,&method,METHOD_OPTIONS},
- {"trace",no_argument,&method,METHOD_TRACE},
- {"version",no_argument,NULL,'V'},
- {"proxy",required_argument,NULL,'p'},
- {"clients",required_argument,NULL,'c'},
- {NULL,0,NULL,0}
- };
-
-
- static void benchcore(const char* host,const int port, const char *request);
- static int bench(void);
- static void build_request(const char *url);
-
- static void alarm_handler(int signal)
- {
- timerexpired=1;
- }
-
-
-
-
- static void usage(void)
- {
- fprintf(stderr,
- "webbench [option]... URL\n"
- " -f|--force Don't wait for reply from server.\n"
- " -r|--reload Send reload request - Pragma: no-cache.\n"
- " -t|--time <sec> Run benchmark for <sec> seconds. Default 30.\n"
- " -p|--proxy <server:port> Use proxy server for request.\n"
- " -c|--clients <n> Run <n> HTTP clients at once. Default one.\n"
- " -9|--http09 Use HTTP/0.9 style requests.\n"
- " -1|--http10 Use HTTP/1.0 protocol.\n"
- " -2|--http11 Use HTTP/1.1 protocol.\n"
- " --get Use GET request method.\n"
- " --head Use HEAD request method.\n"
- " --options Use OPTIONS request method.\n"
- " --trace Use TRACE request method.\n"
- " -?|-h|--help This information.\n"
- " -V|--version Display program version.\n"
- );
- };
- int main(int argc, char *argv[])
- {
- int opt=0;
- int options_index=0;
- char *tmp=NULL;
-
- if(argc==1)
- {
- usage();
- return 2;
- }
-
- while((opt=getopt_long(argc,argv,"912Vfrt:p:c:?h",long_options,&options_index))!=EOF )
- {
- switch(opt)
- {
- case 0 : break;
- case 'f': force=1;break;
- case 'r': force_reload=1;break;
- case '9': http10=0;break;
- case '1': http10=1;break;
- case '2': http10=2;break;
- case 'V': printf(PROGRAM_VERSION"\n");exit(0);
- case 't': benchtime=atoi(optarg);break;
-
- case 'p':
-
- tmp=strrchr(optarg,':');
- proxyhost=optarg;
- if(tmp==NULL)
- {
- break;
- }
- if(tmp==optarg)
- {
- fprintf(stderr,"Error in option --proxy %s: Missing hostname.\n",optarg);
- return 2;
- }
- if(tmp==optarg+strlen(optarg)-1)
- {
- fprintf(stderr,"Error in option --proxy %s Port number is missing.\n",optarg);
- return 2;
- }
- *tmp='\0';
- proxyport=atoi(tmp+1);break;
- case ':':
- case 'h':
- case '?': usage();return 2;break;
- case 'c': clients=atoi(optarg);break;
- }
- }
-
- if(optind==argc) {
- fprintf(stderr,"webbench: Missing URL!\n");
- usage();
- return 2;
- }
-
- if(clients==0) clients=1;
- if(benchtime==0) benchtime=60;
-
- fprintf(stderr,"Webbench - Simple Web Benchmark "PROGRAM_VERSION"\n"
- "Copyright (c) Radim Kolar 1997-2004, GPL Open Source Software.\n"
- );
-
- build_request(argv[optind]);
-
- printf("\nBenchmarking: ");
- switch(method)
- {
- case METHOD_GET:
- default:
- printf("GET");break;
- case METHOD_OPTIONS:
- printf("OPTIONS");break;
- case METHOD_HEAD:
- printf("HEAD");break;
- case METHOD_TRACE:
- printf("TRACE");break;
- }
- printf(" %s",argv[optind]);
- switch(http10)
- {
- case 0: printf(" (using HTTP/0.9)");break;
- case 2: printf(" (using HTTP/1.1)");break;
- }
- printf("\n");
- if(clients==1) printf("1 client");
- else
- printf("%d clients",clients);
-
- printf(", running %d sec", benchtime);
- if(force) printf(", early socket close");
- if(proxyhost!=NULL) printf(", via proxy server %s:%d",proxyhost,proxyport);
- if(force_reload) printf(", forcing reload");
- printf(".\n");
- return bench();
- }
-
-
-
-
-
- void build_request(const char *url)
- {
- char tmp[10];
- int i;
-
-
- bzero(host,MAXHOSTNAMELEN);
- bzero(request,REQUEST_SIZE);
-
- if(force_reload && proxyhost!=NULL && http10<1) http10=1;
- if(method==METHOD_HEAD && http10<1) http10=1;
- if(method==METHOD_OPTIONS && http10<2) http10=2;
- if(method==METHOD_TRACE && http10<2) http10=2;
-
- switch(method)
- {
- default:
- case METHOD_GET: strcpy(request,"GET");break;
- case METHOD_HEAD: strcpy(request,"HEAD");break;
- case METHOD_OPTIONS: strcpy(request,"OPTIONS");break;
- case METHOD_TRACE: strcpy(request,"TRACE");break;
- }
-
- strcat(request," ");
-
- if(NULL==strstr(url,"://"))//找「://」在URL中的位置
- {
- fprintf(stderr, "\n%s: is not a valid URL.\n",url);
- exit(2);
- }
- if(strlen(url)>1500)
- {
- fprintf(stderr,"URL is too long.\n");
- exit(2);
- }
- if(proxyhost==NULL)
- if (0!=strncasecmp("http://",url,7)) //比較前7個字符串
- { fprintf(stderr,"\nOnly HTTP protocol is directly supported, set --proxy for others.\n");
- exit(2);
- }
-
- i=strstr(url,"://")-url+3;//i指向http://後第一個位置
-
-
- if(strchr(url+i,'/')==NULL) {
- fprintf(stderr,"\nInvalid URL syntax - hostname don't ends with '/'.\n");
- exit(2);
- }
- if(proxyhost==NULL)
- {
-
- if(index(url+i,':')!=NULL &&
- index(url+i,':')<index(url+i,'/'))
- {
- strncpy(host,url+i,strchr(url+i,':')-url-i);
- bzero(tmp,10);
- strncpy(tmp,index(url+i,':')+1,strchr(url+i,'/')-index(url+i,':')-1);
-
- proxyport=atoi(tmp);
- if(proxyport==0) proxyport=80;
- } else
- {
- strncpy(host,url+i,strcspn(url+i,"/"));
- }
-
- strcat(request+strlen(request),url+i+strcspn(url+i,"/"));
- } else
- {
-
- strcat(request,url);
- }
- if(http10==1)
- strcat(request," HTTP/1.0");
- else if (http10==2)
- strcat(request," HTTP/1.1");
- strcat(request,"\r\n");
- if(http10>0)
- strcat(request,"User-Agent: WebBench "PROGRAM_VERSION"\r\n");
- if(proxyhost==NULL && http10>0)
- {
- strcat(request,"Host: ");
- strcat(request,host);
- strcat(request,"\r\n");
- }
- if(force_reload && proxyhost!=NULL)
- {
- strcat(request,"Pragma: no-cache\r\n");
- }
- if(http10>1)
- strcat(request,"Connection: close\r\n");
-
- if(http10>0) strcat(request,"\r\n");
-
- }
-
-
-
-
-
- static int bench(void)
- {
- int i,j,k;
- pid_t pid=0;
- FILE *f;
-
-
- i=Socket(proxyhost==NULL?host:proxyhost,proxyport);
- if(i<0) {
- fprintf(stderr,"\nConnect to server failed. Aborting benchmark.\n");
- return 1;
- }
- close(i);
-
- if(pipe(mypipe))
- {
- perror("pipe failed.");
- return 3;
- }
-
-
-
-
-
-
-
-
-
-
- for(i=0;i<clients;i++)
- {
- pid=fork();
- if(pid <= (pid_t) 0)
- {
-
- sleep(1);
- break;
- }
- }
-
- if( pid< (pid_t) 0)
- {
- fprintf(stderr,"problems forking worker no. %d\n",i);
- perror("fork failed.");
- return 3;
- }
-
- if(pid== (pid_t) 0)
- {
-
- if(proxyhost==NULL)
- benchcore(host,proxyport,request);
- else
- benchcore(proxyhost,proxyport,request);
-
-
- f=fdopen(mypipe[1],"w");
- if(f==NULL)
- {
- perror("open pipe for writing failed.");
- return 3;
- }
-
- fprintf(f,"%d %d %d\n",speed,failed,bytes);
- fclose(f);
- return 0;
- } else
- {
- f=fdopen(mypipe[0],"r");
- if(f==NULL)
- {
- perror("open pipe for reading failed.");
- return 3;
- }
- setvbuf(f,NULL,_IONBF,0);
- speed=0;
- failed=0;
- bytes=0;
-
- while(1)
- {
- pid=fscanf(f,"%d %d %d",&i,&j,&k);
- if(pid<2)
- {
- fprintf(stderr,"Some of our childrens died.\n");
- break;
- }
- speed+=i;
- failed+=j;
- bytes+=k;
-
- if(--clients==0) break;
- }
- fclose(f);
-
-
- printf("\nSpeed=%d pages/min, %d bytes/sec.\nRequests: %d susceed, %d failed.\n",
- (int)((speed+failed)/(benchtime/60.0f)),
- (int)(bytes/(float)benchtime),
- speed,
- failed);
- }
- return i;
- }
-
-
-
-
-
-
- void benchcore(const char *host,const int port,const char *req)
- {
- int rlen;
- char buf[1500];
- int s,i;
- struct sigaction sa;
-
-
- sa.sa_handler=alarm_handler;
- sa.sa_flags=0;
- if(sigaction(SIGALRM,&sa,NULL))
- exit(3);
- alarm(benchtime);
-
- rlen=strlen(req);
- nexttry:while(1)
- {
- if(timerexpired)
- {
- if(failed>0)
- {
-
- failed--;
- }
- return;
- }
- s=Socket(host,port);
- if(s<0) { failed++;continue;}
- if(rlen!=write(s,req,rlen)) {failed++;close(s);continue;}
- if(http10==0)
- if(shutdown(s,1)) { failed++;close(s);continue;}
- if(force==0)
- {
-
- while(1)
- {
- if(timerexpired) break;
- i=read(s,buf,1500);
-
- if(i<0)
- {
- failed++;
- close(s);
- goto nexttry;
- }
- else
- if(i==0) break;
- else
- bytes+=i;
- }
- }
- if(close(s)) {failed++;continue;}
- speed++;
- }
- }
Web Bench是一個網站壓力測試的工具。其最後更新時間是2004年,已經十年多了。其源代碼總共才500多行,所有使用C語言編寫,最多能夠模擬上萬個併發鏈接。
其原理也比較簡單,就是使用fork建立子進程,經過子進程來測試http鏈接,把測試結果寫到管道,再有父進程讀取管道信息來計算測試結果。流程圖下:
![](http://static.javashuo.com/static/loading.gif)
其源代碼有2個文件組成
socket.c是建立socket鏈接的。主要的代碼在webbench.c中。
webbench.c中有幾個主要的函數。
static void usage(void)是在使用出錯時提示怎麼使用本程序。
void build_request(const char *url)是用來建立http鏈接請求的。
static int bench(void)中建立管道和子進程,調用測試http函數。
void benchcore(const char *host,const int port,const char *req)對http請求進行測試。
socket.c源代碼及註釋:
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <fcntl.h>
- #include <netinet/in.h>
- #include <arpa/inet.h>
- #include <netdb.h>
- #include <sys/time.h>
- #include <string.h>
- #include <unistd.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <stdarg.h>
-
-
-
-
-
-
-
- int Socket(const char *host, int clientPort)
- {
- int sock;
- unsigned long inaddr;
- struct sockaddr_in ad;
- struct hostent *hp;
-
- memset(&ad, 0, sizeof(ad));
- ad.sin_family = AF_INET;
-
- inaddr = inet_addr(host);
- if (inaddr != INADDR_NONE)
- memcpy(&ad.sin_addr, &inaddr, sizeof(inaddr));
- else
- {
- hp = gethostbyname(host);
- if (hp == NULL)
- return -1;
- memcpy(&ad.sin_addr, hp->h_addr, hp->h_length);
- }
- ad.sin_port = htons(clientPort);
-
- sock = socket(AF_INET, SOCK_STREAM, 0);
- if (sock < 0)
- return sock;
-
- if (connect(sock, (struct sockaddr *)&ad, sizeof(ad)) < 0)
- return -1;
- return sock;
- }
wenbench.c源代碼及註釋
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- #include "socket.c"
- #include <unistd.h>
- #include <sys/param.h>
- #include <rpc/types.h>
- #include <getopt.h>
- #include <strings.h>
- #include <time.h>
- #include <signal.h>
-
-
- volatile int timerexpired=0;
- int speed=0;
- int failed=0;
- int bytes=0;
-
-
- int http10=1;
-
- #define METHOD_GET 0
- #define METHOD_HEAD 1
- #define METHOD_OPTIONS 2
- #define METHOD_TRACE 3
- #define PROGRAM_VERSION "1.5"
- int method=METHOD_GET;
- int clients=1;
- int force=0;
- int force_reload=0;
- int proxyport=80;
- char *proxyhost=NULL;
- int benchtime=30;
-
- int mypipe[2];
- char host[MAXHOSTNAMELEN];
- #define REQUEST_SIZE 2048
- char request[REQUEST_SIZE];
-
-
- static const struct option long_options[]=
- {
- {"force",no_argument,&force,1},
- {"reload",no_argument,&force_reload,1},
- {"time",required_argument,NULL,'t'},
- {"help",no_argument,NULL,'?'},
- {"http09",no_argument,NULL,'9'},
- {"http10",no_argument,NULL,'1'},
- {"http11",no_argument,NULL,'2'},
- {"get",no_argument,&method,METHOD_GET},
- {"head",no_argument,&method,METHOD_HEAD},
- {"options",no_argument,&method,METHOD_OPTIONS},
- {"trace",no_argument,&method,METHOD_TRACE},
- {"version",no_argument,NULL,'V'},
- {"proxy",required_argument,NULL,'p'},
- {"clients",required_argument,NULL,'c'},
- {NULL,0,NULL,0}
- };
-
-
- static void benchcore(const char* host,const int port, const char *request);
- static int bench(void);
- static void build_request(const char *url);
-
- static void alarm_handler(int signal)
- {
- timerexpired=1;
- }
-
-
-
-
- static void usage(void)
- {
- fprintf(stderr,
- "webbench [option]... URL\n"
- " -f|--force Don't wait for reply from server.\n"
- " -r|--reload Send reload request - Pragma: no-cache.\n"
- " -t|--time <sec> Run benchmark for <sec> seconds. Default 30.\n"
- " -p|--proxy <server:port> Use proxy server for request.\n"
- " -c|--clients <n> Run <n> HTTP clients at once. Default one.\n"
- " -9|--http09 Use HTTP/0.9 style requests.\n"
- " -1|--http10 Use HTTP/1.0 protocol.\n"
- " -2|--http11 Use HTTP/1.1 protocol.\n"
- " --get Use GET request method.\n"
- " --head Use HEAD request method.\n"
- " --options Use OPTIONS request method.\n"
- " --trace Use TRACE request method.\n"
- " -?|-h|--help This information.\n"
- " -V|--version Display program version.\n"
- );
- };
- int main(int argc, char *argv[])
- {
- int opt=0;
- int options_index=0;
- char *tmp=NULL;
-
- if(argc==1)
- {
- usage();
- return 2;
- }
-
- while((opt=getopt_long(argc,argv,"912Vfrt:p:c:?h",long_options,&options_index))!=EOF )
- {
- switch(opt)
- {
- case 0 : break;
- case 'f': force=1;break;
- case 'r': force_reload=1;break;
- case '9': http10=0;break;
- case '1': http10=1;break;
- case '2': http10=2;break;
- case 'V': printf(PROGRAM_VERSION"\n");exit(0);
- case 't': benchtime=atoi(optarg);break;
-
- case 'p':
-
- tmp=strrchr(optarg,':');
- proxyhost=optarg;
- if(tmp==NULL)
- {
- break;
- }
- if(tmp==optarg)
- {
- fprintf(stderr,"Error in option --proxy %s: Missing hostname.\n",optarg);
- return 2;
- }
- if(tmp==optarg+strlen(optarg)-1)
- {
- fprintf(stderr,"Error in option --proxy %s Port number is missing.\n",optarg);
- return 2;
- }
- *tmp='\0';
- proxyport=atoi(tmp+1);break;
- case ':':
- case 'h':
- case '?': usage();return 2;break;
- case 'c': clients=atoi(optarg);break;
- }
- }
-
- if(optind==argc) {
- fprintf(stderr,"webbench: Missing URL!\n");
- usage();
- return 2;
- }
-
- if(clients==0) clients=1;
- if(benchtime==0) benchtime=60;
-
- fprintf(stderr,"Webbench - Simple Web Benchmark "PROGRAM_VERSION"\n"
- "Copyright (c) Radim Kolar 1997-2004, GPL Open Source Software.\n"
- );
-
- build_request(argv[optind]);
-
- printf("\nBenchmarking: ");
- switch(method)
- {
- case METHOD_GET:
- default:
- printf("GET");break;
- case METHOD_OPTIONS:
- printf("OPTIONS");break;
- case METHOD_HEAD:
- printf("HEAD");break;
- case METHOD_TRACE:
- printf("TRACE");break;
- }
- printf(" %s",argv[optind]);
- switch(http10)
- {
- case 0: printf(" (using HTTP/0.9)");break;
- case 2: printf(" (using HTTP/1.1)");break;
- }
- printf("\n");
- if(clients==1) printf("1 client");
- else
- printf("%d clients",clients);
-
- printf(", running %d sec", benchtime);
- if(force) printf(", early socket close");
- if(proxyhost!=NULL) printf(", via proxy server %s:%d",proxyhost,proxyport);
- if(force_reload) printf(", forcing reload");
- printf(".\n");
- return bench();
- }
-
-
-
-
-
- void build_request(const char *url)
- {
- char tmp[10];
- int i;
-
-
- bzero(host,MAXHOSTNAMELEN);
- bzero(request,REQUEST_SIZE);
-
- if(force_reload && proxyhost!=NULL && http10<1) http10=1;
- if(method==METHOD_HEAD && http10<1) http10=1;
- if(method==METHOD_OPTIONS && http10<2) http10=2;
- if(method==METHOD_TRACE && http10<2) http10=2;
-
- switch(method)
- {
- default:
- case METHOD_GET: strcpy(request,"GET");break;
- case METHOD_HEAD: strcpy(request,"HEAD");break;
- case METHOD_OPTIONS: strcpy(request,"OPTIONS");break;
- case METHOD_TRACE: strcpy(request,"TRACE");break;
- }
-
- strcat(request," ");
-
- if(NULL==strstr(url,"://"))//找「://」在URL中的位置
- {
- fprintf(stderr, "\n%s: is not a valid URL.\n",url);
- exit(2);
- }
- if(strlen(url)>1500)
- {
- fprintf(stderr,"URL is too long.\n");
- exit(2);
- }
- if(proxyhost==NULL)
- if (0!=strncasecmp("http://",url,7)) //比較前7個字符串
- { fprintf(stderr,"\nOnly HTTP protocol is directly supported, set --proxy for others.\n");
- exit(2);
- }
-
- i=strstr(url,"://")-url+3;//i指向http://後第一個位置
-
-
- if(strchr(url+i,'/')==NULL) {
- fprintf(stderr,"\nInvalid URL syntax - hostname don't ends with '/'.\n");
- exit(2);
- }
- if(proxyhost==NULL)
- {
-
- if(index(url+i,':')!=NULL &&
- index(url+i,':')<index(url+i,'/'))
- {
- strncpy(host,url+i,strchr(url+i,':')-url-i);
- bzero(tmp,10);
- strncpy(tmp,index(url+i,':')+1,strchr(url+i,'/')-index(url+i,':')-1);
-
- proxyport=atoi(tmp);
- if(proxyport==0) proxyport=80;
- } else
- {
- strncpy(host,url+i,strcspn(url+i,"/"));
- }
-
- strcat(request+strlen(request),url+i+strcspn(url+i,"/"));
- } else
- {
-
- strcat(request,url);
- }
- if(http10==1)
- strcat(request," HTTP/1.0");
- else if (http10==2)
- strcat(request," HTTP/1.1");
- strcat(request,"\r\n");
- if(http10>0)
- strcat(request,"User-Agent: WebBench "PROGRAM_VERSION"\r\n");
- if(proxyhost==NULL && http10>0)
- {
- strcat(request,"Host: ");
- strcat(request,host);
- strcat(request,"\r\n");
- }
- if(force_reload && proxyhost!=NULL)
- {
- strcat(request,"Pragma: no-cache\r\n");
- }
- if(http10>1)
- strcat(request,"Connection: close\r\n");
-
- if(http10>0) strcat(request,"\r\n");
-
- }
-
-
-
-
-
- static int bench(void)
- {
- int i,j,k;
- pid_t pid=0;
- FILE *f;
-
-
- i=Socket(proxyhost==NULL?host:proxyhost,proxyport);
- if(i<0) {
- fprintf(stderr,"\nConnect to server failed. Aborting benchmark.\n");
- return 1;
- }
- close(i);
-
- if(pipe(mypipe))
- {
- perror("pipe failed.");
- return 3;
- }
-
-
-
-
-
-
-
-
-
-
- for(i=0;i<clients;i++)
- {
- pid=fork();
- if(pid <= (pid_t) 0)
- {
-
- sleep(1);
- break;
- }
- }
-
- if( pid< (pid_t) 0)
- {
- fprintf(stderr,"problems forking worker no. %d\n",i);
- perror("fork failed.");
- return 3;
- }
-
- if(pid== (pid_t) 0)
- {
-
- if(proxyhost==NULL)
- benchcore(host,proxyport,request);
- else
- benchcore(proxyhost,proxyport,request);
-
-
- f=fdopen(mypipe[1],"w");
- if(f==NULL)
- {
- perror("open pipe for writing failed.");
- return 3;
- }
-
- fprintf(f,"%d %d %d\n",speed,failed,bytes);
- fclose(f);
- return 0;
- } else
- {
- f=fdopen(mypipe[0],"r");
- if(f==NULL)
- {
- perror("open pipe for reading failed.");
- return 3;
- }
- setvbuf(f,NULL,_IONBF,0);
- speed=0;
- failed=0;
- bytes=0;
-
- while(1)
- {
- pid=fscanf(f,"%d %d %d",&i,&j,&k);
- if(pid<2)
- {
- fprintf(stderr,"Some of our childrens died.\n");
- break;
- }
- speed+=i;
- failed+=j;
- bytes+=k;
-
- if(--clients==0) break;
- }
- fclose(f);
-
-
- printf("\nSpeed=%d pages/min, %d bytes/sec.\nRequests: %d susceed, %d failed.\n",
- (int)((speed+failed)/(benchtime/60.0f)),
- (int)(bytes/(float)benchtime),
- speed,
- failed);
- }
- return i;
- }
-
-
-
-
-
-
- void benchcore(const char *host,const int port,const char *req)
- {
- int rlen;
- char buf[1500];
- int s,i;
- struct sigaction sa;
-
-
- sa.sa_handler=alarm_handler;
- sa.sa_flags=0;
- if(sigaction(SIGALRM,&sa,NULL))
- exit(3);
- alarm(benchtime);
-
- rlen=strlen(req);
- nexttry:while(1)
- {
- if(timerexpired)
- {
- if(failed>0)
- {
-
- failed--;
- }
- return;
- }
- s=Socket(host,port);
- if(s<0) { failed++;continue;}
- if(rlen!=write(s,req,rlen)) {failed++;close(s);continue;}
- if(http10==0)
- if(shutdown(s,1)) { failed++;close(s);continue;}
- if(force==0)
- {
-
- while(1)
- {
- if(timerexpired) break;
- i=read(s,buf,1500);
-
- if(i<0)
- {
- failed++;
- close(s);
- goto nexttry;
- }
- else
- if(i==0) break;
- else
- bytes+=i;
- }
- }
- if(close(s)) {failed++;continue;}
- speed++;
- }
- }