--- /dev/null
+/*
+ measure latency of tcp sockets
+ tridge@samba.org July 2006
+*/
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/poll.h>
+#include <sys/time.h>
+#include <time.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+
+
+typedef int BOOL;
+
+#define True 1
+#define False 0
+
+static struct timeval tp1,tp2;
+
+static void start_timer()
+{
+ gettimeofday(&tp1,NULL);
+}
+
+static double end_timer()
+{
+ gettimeofday(&tp2,NULL);
+ return (tp2.tv_sec + (tp2.tv_usec*1.0e-6)) -
+ (tp1.tv_sec + (tp1.tv_usec*1.0e-6));
+}
+
+static void fatal(const char *why)
+{
+ fprintf(stderr, "fatal: %s - %s\n", why, strerror(errno));
+ exit(1);
+}
+
+enum SOCK_OPT_TYPES {OPT_BOOL,OPT_INT,OPT_ON};
+
+struct
+{
+ char *name;
+ int level;
+ int option;
+ int value;
+ int opttype;
+} socket_options[] = {
+ {"SO_KEEPALIVE", SOL_SOCKET, SO_KEEPALIVE, 0, OPT_BOOL},
+ {"SO_REUSEADDR", SOL_SOCKET, SO_REUSEADDR, 0, OPT_BOOL},
+ {"SO_BROADCAST", SOL_SOCKET, SO_BROADCAST, 0, OPT_BOOL},
+#ifdef TCP_NODELAY
+ {"TCP_NODELAY", IPPROTO_TCP, TCP_NODELAY, 0, OPT_BOOL},
+#endif
+#ifdef IPTOS_LOWDELAY
+ {"IPTOS_LOWDELAY", IPPROTO_IP, IP_TOS, IPTOS_LOWDELAY, OPT_ON},
+#endif
+#ifdef IPTOS_THROUGHPUT
+ {"IPTOS_THROUGHPUT", IPPROTO_IP, IP_TOS, IPTOS_THROUGHPUT, OPT_ON},
+#endif
+#ifdef SO_SNDBUF
+ {"SO_SNDBUF", SOL_SOCKET, SO_SNDBUF, 0, OPT_INT},
+#endif
+#ifdef SO_RCVBUF
+ {"SO_RCVBUF", SOL_SOCKET, SO_RCVBUF, 0, OPT_INT},
+#endif
+#ifdef SO_SNDLOWAT
+ {"SO_SNDLOWAT", SOL_SOCKET, SO_SNDLOWAT, 0, OPT_INT},
+#endif
+#ifdef SO_RCVLOWAT
+ {"SO_RCVLOWAT", SOL_SOCKET, SO_RCVLOWAT, 0, OPT_INT},
+#endif
+#ifdef SO_SNDTIMEO
+ {"SO_SNDTIMEO", SOL_SOCKET, SO_SNDTIMEO, 0, OPT_INT},
+#endif
+#ifdef SO_RCVTIMEO
+ {"SO_RCVTIMEO", SOL_SOCKET, SO_RCVTIMEO, 0, OPT_INT},
+#endif
+ {NULL,0,0,0,0}};
+
+
+/****************************************************************************
+ Get the next token from a string, return False if none found
+ handles double-quotes.
+Based on a routine by GJC@VILLAGE.COM.
+Extensively modified by Andrew.Tridgell@anu.edu.au
+****************************************************************************/
+BOOL next_token(char **ptr,char *buff,char *sep)
+{
+ char *s;
+ BOOL quoted;
+ static char *last_ptr=NULL;
+
+ if (!ptr) ptr = &last_ptr;
+ if (!ptr) return(False);
+
+ s = *ptr;
+
+ /* default to simple separators */
+ if (!sep) sep = " \t\n\r";
+
+ /* find the first non sep char */
+ while(*s && strchr(sep,*s)) s++;
+
+ /* nothing left? */
+ if (! *s) return(False);
+
+ /* copy over the token */
+ for (quoted = False; *s && (quoted || !strchr(sep,*s)); s++)
+ {
+ if (*s == '\"')
+ quoted = !quoted;
+ else
+ *buff++ = *s;
+ }
+
+ *ptr = (*s) ? s+1 : s;
+ *buff = 0;
+ last_ptr = *ptr;
+
+ return(True);
+}
+
+
+/****************************************************************************
+set user socket options
+****************************************************************************/
+void set_socket_options(int fd, char *options)
+{
+ char tok[200];
+
+ while (next_token(&options,tok," \t,"))
+ {
+ int ret=0,i;
+ int value = 1;
+ char *p;
+ BOOL got_value = False;
+
+ if ((p = strchr(tok,'=')))
+ {
+ *p = 0;
+ value = atoi(p+1);
+ got_value = True;
+ }
+
+ for (i=0;socket_options[i].name;i++)
+ if (strcasecmp(socket_options[i].name,tok)==0)
+ break;
+
+ if (!socket_options[i].name)
+ {
+ printf("Unknown socket option %s\n",tok);
+ continue;
+ }
+
+ switch (socket_options[i].opttype)
+ {
+ case OPT_BOOL:
+ case OPT_INT:
+ ret = setsockopt(fd,socket_options[i].level,
+ socket_options[i].option,(char *)&value,sizeof(int));
+ break;
+
+ case OPT_ON:
+ if (got_value)
+ printf("syntax error - %s does not take a value\n",tok);
+
+ {
+ int on = socket_options[i].value;
+ ret = setsockopt(fd,socket_options[i].level,
+ socket_options[i].option,(char *)&on,sizeof(int));
+ }
+ break;
+ }
+
+ if (ret != 0)
+ printf("Failed to set socket option %s\n",tok);
+ }
+}
+
+/*
+ connect to a tcp socket
+*/
+int tcp_socket_connect(int port)
+{
+ int type = SOCK_STREAM;
+ struct sockaddr_in sock_out;
+ int res;
+ struct hostent *hp;
+ const char *host = "localhost";
+
+ res = socket(PF_INET, type, 0);
+ if (res == -1) {
+ return -1;
+ }
+
+ hp = gethostbyname(host);
+ if (!hp) {
+ fprintf(stderr,"unknown host: %s\n", host);
+ close(res);
+ return -1;
+ }
+
+ memcpy(&sock_out.sin_addr, hp->h_addr, hp->h_length);
+ sock_out.sin_port = htons(port);
+ sock_out.sin_family = PF_INET;
+
+ if (connect(res,(struct sockaddr *)&sock_out,sizeof(sock_out))) {
+ fprintf(stderr,"failed to connect to %s - %s\n", host, strerror(errno));
+ close(res);
+ return -1;
+ }
+
+ return res;
+}
+
+
+/*
+ create a tcp socket and bind it
+ return a file descriptor open on the socket
+*/
+static int tcp_socket_bind(int port)
+{
+ struct hostent *hp;
+ struct sockaddr_in sock;
+ char host_name[1000];
+ int res;
+ int one=1;
+
+ /* get my host name */
+ if (gethostname(host_name, sizeof(host_name)) == -1) {
+ fprintf(stderr,"gethostname failed\n");
+ return -1;
+ }
+
+ /* get host info */
+ if ((hp = gethostbyname(host_name)) == 0) {
+ fprintf(stderr,"gethostbyname: Unknown host %s\n",host_name);
+ return -1;
+ }
+
+ memset((char *)&sock,0,sizeof(sock));
+ memcpy((char *)&sock.sin_addr,(char *)hp->h_addr, hp->h_length);
+ sock.sin_port = htons(port);
+ sock.sin_family = hp->h_addrtype;
+ sock.sin_addr.s_addr = INADDR_ANY;
+ res = socket(hp->h_addrtype, SOCK_STREAM, 0);
+ if (res == -1) {
+ fprintf(stderr,"socket failed\n");
+ return -1;
+ }
+
+ setsockopt(res,SOL_SOCKET,SO_REUSEADDR,(char *)&one,sizeof(one));
+
+ /* now we've got a socket - we need to bind it */
+ if (bind(res, (struct sockaddr * ) &sock,sizeof(sock)) == -1) {
+ fprintf(stderr,"bind failed on port %d\n", port);
+ close(res);
+ return -1;
+ }
+
+ listen(res, 1);
+
+ return res;
+}
+
+/*
+ accept on a tcp socket
+*/
+static int tcp_socket_accept(int fd)
+{
+ struct sockaddr a;
+ socklen_t len;
+ return accept(fd, &a, &len);
+}
+
+static void worker(int port1, int port2, int w)
+{
+ int l = tcp_socket_bind(port1);
+ int s2, s1;
+ int count=0;
+
+ set_socket_options(l, "SO_REUSEADDR");
+
+ sleep(2);
+
+ s2 = tcp_socket_connect(port2);
+ s1 = tcp_socket_accept(l);
+
+ set_socket_options(s1, "TCP_NODELAY");
+ set_socket_options(s2, "TCP_NODELAY");
+
+ start_timer();
+
+ while (1) {
+ char c=0;
+ if (write(s2, &c, 1) != 1) {
+ fatal("write");
+ }
+ if (read(s1, &c, 1) != 1) {
+ fatal("read");
+ }
+ if (w == 1 && (end_timer() > 1.0)) {
+ printf("%8u ops/sec\r",
+ (unsigned)(2*count/end_timer()));
+ fflush(stdout);
+ start_timer();
+ count=0;
+ }
+ count++;
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ if (fork() == 0) {
+ worker(1313, 1314, 0);
+ } else {
+ worker(1314, 1313, 1);
+ }
+ return 0;
+}
--- /dev/null
+/*
+ measure latency of tcp sockets
+ tridge@samba.org July 2006
+*/
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/poll.h>
+#include <sys/time.h>
+#include <time.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+
+
+typedef int BOOL;
+
+#define True 1
+#define False 0
+
+static struct timeval tp1,tp2;
+
+static void start_timer()
+{
+ gettimeofday(&tp1,NULL);
+}
+
+static double end_timer()
+{
+ gettimeofday(&tp2,NULL);
+ return (tp2.tv_sec + (tp2.tv_usec*1.0e-6)) -
+ (tp1.tv_sec + (tp1.tv_usec*1.0e-6));
+}
+
+static void fatal(const char *why)
+{
+ fprintf(stderr, "fatal: %s - %s\n", why, strerror(errno));
+ exit(1);
+}
+
+enum SOCK_OPT_TYPES {OPT_BOOL,OPT_INT,OPT_ON};
+
+struct
+{
+ char *name;
+ int level;
+ int option;
+ int value;
+ int opttype;
+} socket_options[] = {
+ {"SO_KEEPALIVE", SOL_SOCKET, SO_KEEPALIVE, 0, OPT_BOOL},
+ {"SO_REUSEADDR", SOL_SOCKET, SO_REUSEADDR, 0, OPT_BOOL},
+ {"SO_BROADCAST", SOL_SOCKET, SO_BROADCAST, 0, OPT_BOOL},
+#ifdef TCP_NODELAY
+ {"TCP_NODELAY", IPPROTO_TCP, TCP_NODELAY, 0, OPT_BOOL},
+#endif
+#ifdef IPTOS_LOWDELAY
+ {"IPTOS_LOWDELAY", IPPROTO_IP, IP_TOS, IPTOS_LOWDELAY, OPT_ON},
+#endif
+#ifdef IPTOS_THROUGHPUT
+ {"IPTOS_THROUGHPUT", IPPROTO_IP, IP_TOS, IPTOS_THROUGHPUT, OPT_ON},
+#endif
+#ifdef SO_SNDBUF
+ {"SO_SNDBUF", SOL_SOCKET, SO_SNDBUF, 0, OPT_INT},
+#endif
+#ifdef SO_RCVBUF
+ {"SO_RCVBUF", SOL_SOCKET, SO_RCVBUF, 0, OPT_INT},
+#endif
+#ifdef SO_SNDLOWAT
+ {"SO_SNDLOWAT", SOL_SOCKET, SO_SNDLOWAT, 0, OPT_INT},
+#endif
+#ifdef SO_RCVLOWAT
+ {"SO_RCVLOWAT", SOL_SOCKET, SO_RCVLOWAT, 0, OPT_INT},
+#endif
+#ifdef SO_SNDTIMEO
+ {"SO_SNDTIMEO", SOL_SOCKET, SO_SNDTIMEO, 0, OPT_INT},
+#endif
+#ifdef SO_RCVTIMEO
+ {"SO_RCVTIMEO", SOL_SOCKET, SO_RCVTIMEO, 0, OPT_INT},
+#endif
+ {NULL,0,0,0,0}};
+
+
+/****************************************************************************
+ Get the next token from a string, return False if none found
+ handles double-quotes.
+Based on a routine by GJC@VILLAGE.COM.
+Extensively modified by Andrew.Tridgell@anu.edu.au
+****************************************************************************/
+BOOL next_token(char **ptr,char *buff,char *sep)
+{
+ char *s;
+ BOOL quoted;
+ static char *last_ptr=NULL;
+
+ if (!ptr) ptr = &last_ptr;
+ if (!ptr) return(False);
+
+ s = *ptr;
+
+ /* default to simple separators */
+ if (!sep) sep = " \t\n\r";
+
+ /* find the first non sep char */
+ while(*s && strchr(sep,*s)) s++;
+
+ /* nothing left? */
+ if (! *s) return(False);
+
+ /* copy over the token */
+ for (quoted = False; *s && (quoted || !strchr(sep,*s)); s++)
+ {
+ if (*s == '\"')
+ quoted = !quoted;
+ else
+ *buff++ = *s;
+ }
+
+ *ptr = (*s) ? s+1 : s;
+ *buff = 0;
+ last_ptr = *ptr;
+
+ return(True);
+}
+
+
+/****************************************************************************
+set user socket options
+****************************************************************************/
+void set_socket_options(int fd, char *options)
+{
+ char tok[200];
+
+ while (next_token(&options,tok," \t,"))
+ {
+ int ret=0,i;
+ int value = 1;
+ char *p;
+ BOOL got_value = False;
+
+ if ((p = strchr(tok,'=')))
+ {
+ *p = 0;
+ value = atoi(p+1);
+ got_value = True;
+ }
+
+ for (i=0;socket_options[i].name;i++)
+ if (strcasecmp(socket_options[i].name,tok)==0)
+ break;
+
+ if (!socket_options[i].name)
+ {
+ printf("Unknown socket option %s\n",tok);
+ continue;
+ }
+
+ switch (socket_options[i].opttype)
+ {
+ case OPT_BOOL:
+ case OPT_INT:
+ ret = setsockopt(fd,socket_options[i].level,
+ socket_options[i].option,(char *)&value,sizeof(int));
+ break;
+
+ case OPT_ON:
+ if (got_value)
+ printf("syntax error - %s does not take a value\n",tok);
+
+ {
+ int on = socket_options[i].value;
+ ret = setsockopt(fd,socket_options[i].level,
+ socket_options[i].option,(char *)&on,sizeof(int));
+ }
+ break;
+ }
+
+ if (ret != 0)
+ printf("Failed to set socket option %s\n",tok);
+ }
+}
+
+/*
+ connect to a tcp socket
+*/
+int tcp_socket_connect(const char *host, int port)
+{
+ int type = SOCK_STREAM;
+ struct sockaddr_in sock_out;
+ int res;
+ struct hostent *hp;
+
+ res = socket(PF_INET, type, 0);
+ if (res == -1) {
+ return -1;
+ }
+
+ hp = gethostbyname(host);
+ if (!hp) {
+ fprintf(stderr,"unknown host: %s\n", host);
+ close(res);
+ return -1;
+ }
+
+ memcpy(&sock_out.sin_addr, hp->h_addr, hp->h_length);
+ sock_out.sin_port = htons(port);
+ sock_out.sin_family = PF_INET;
+
+ if (connect(res,(struct sockaddr *)&sock_out,sizeof(sock_out))) {
+ fprintf(stderr,"failed to connect to %s - %s\n", host, strerror(errno));
+ close(res);
+ return -1;
+ }
+
+ return res;
+}
+
+
+/*
+ create a tcp socket and bind it
+ return a file descriptor open on the socket
+*/
+static int tcp_socket_bind(int port)
+{
+ struct hostent *hp;
+ struct sockaddr_in sock;
+ char host_name[1000];
+ int res;
+ int one=1;
+
+ /* get my host name */
+ if (gethostname(host_name, sizeof(host_name)) == -1) {
+ fprintf(stderr,"gethostname failed\n");
+ return -1;
+ }
+
+ /* get host info */
+ if ((hp = gethostbyname(host_name)) == 0) {
+ fprintf(stderr,"gethostbyname: Unknown host %s\n",host_name);
+ return -1;
+ }
+
+ memset((char *)&sock,0,sizeof(sock));
+ memcpy((char *)&sock.sin_addr,(char *)hp->h_addr, hp->h_length);
+ sock.sin_port = htons(port);
+ sock.sin_family = hp->h_addrtype;
+ sock.sin_addr.s_addr = INADDR_ANY;
+ res = socket(hp->h_addrtype, SOCK_STREAM, 0);
+ if (res == -1) {
+ fprintf(stderr,"socket failed\n");
+ return -1;
+ }
+
+ setsockopt(res,SOL_SOCKET,SO_REUSEADDR,(char *)&one,sizeof(one));
+
+ /* now we've got a socket - we need to bind it */
+ if (bind(res, (struct sockaddr * ) &sock,sizeof(sock)) == -1) {
+ fprintf(stderr,"bind failed on port %d\n", port);
+ close(res);
+ return -1;
+ }
+
+ listen(res, 1);
+
+ return res;
+}
+
+/*
+ accept on a tcp socket
+*/
+static int tcp_socket_accept(int fd)
+{
+ struct sockaddr a;
+ socklen_t len;
+ return accept(fd, &a, &len);
+}
+
+static void worker(const char *host, int port1, int port2, int w)
+{
+ int l = tcp_socket_bind(port1);
+ int s2, s1;
+ int count=0;
+
+ set_socket_options(l, "SO_REUSEADDR");
+
+ sleep(2);
+
+ s2 = tcp_socket_connect(host, port2);
+ s1 = tcp_socket_accept(l);
+
+ set_socket_options(s1, "TCP_NODELAY");
+ set_socket_options(s2, "TCP_NODELAY");
+
+ start_timer();
+
+ while (1) {
+ char c=0;
+ if (write(s2, &c, 1) != 1) {
+ fatal("write");
+ }
+ if (read(s1, &c, 1) != 1) {
+ fatal("read");
+ }
+ if (w == 1 && (end_timer() > 1.0)) {
+ printf("%8u ops/sec\r",
+ (unsigned)(2*count/end_timer()));
+ fflush(stdout);
+ start_timer();
+ count=0;
+ }
+ count++;
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ worker(argv[1], atoi(argv[2]), atoi(argv[3]), 1);
+ return 0;
+}
--- /dev/null
+/*
+ measure latency of udp sockets
+ tridge@samba.org July 2006
+*/
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/poll.h>
+#include <sys/time.h>
+#include <time.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <netinet/udp.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+
+
+typedef int BOOL;
+
+#define True 1
+#define False 0
+
+static struct timeval tp1,tp2;
+
+static void start_timer()
+{
+ gettimeofday(&tp1,NULL);
+}
+
+static double end_timer()
+{
+ gettimeofday(&tp2,NULL);
+ return (tp2.tv_sec + (tp2.tv_usec*1.0e-6)) -
+ (tp1.tv_sec + (tp1.tv_usec*1.0e-6));
+}
+
+static void fatal(const char *why)
+{
+ fprintf(stderr, "fatal: %s - %s\n", why, strerror(errno));
+ exit(1);
+}
+
+enum SOCK_OPT_TYPES {OPT_BOOL,OPT_INT,OPT_ON};
+
+struct
+{
+ char *name;
+ int level;
+ int option;
+ int value;
+ int opttype;
+} socket_options[] = {
+ {"SO_KEEPALIVE", SOL_SOCKET, SO_KEEPALIVE, 0, OPT_BOOL},
+ {"SO_REUSEADDR", SOL_SOCKET, SO_REUSEADDR, 0, OPT_BOOL},
+ {"SO_BROADCAST", SOL_SOCKET, SO_BROADCAST, 0, OPT_BOOL},
+#ifdef TCP_NODELAY
+ {"TCP_NODELAY", IPPROTO_TCP, TCP_NODELAY, 0, OPT_BOOL},
+#endif
+#ifdef IPTOS_LOWDELAY
+ {"IPTOS_LOWDELAY", IPPROTO_IP, IP_TOS, IPTOS_LOWDELAY, OPT_ON},
+#endif
+#ifdef IPTOS_THROUGHPUT
+ {"IPTOS_THROUGHPUT", IPPROTO_IP, IP_TOS, IPTOS_THROUGHPUT, OPT_ON},
+#endif
+#ifdef SO_SNDBUF
+ {"SO_SNDBUF", SOL_SOCKET, SO_SNDBUF, 0, OPT_INT},
+#endif
+#ifdef SO_RCVBUF
+ {"SO_RCVBUF", SOL_SOCKET, SO_RCVBUF, 0, OPT_INT},
+#endif
+#ifdef SO_SNDLOWAT
+ {"SO_SNDLOWAT", SOL_SOCKET, SO_SNDLOWAT, 0, OPT_INT},
+#endif
+#ifdef SO_RCVLOWAT
+ {"SO_RCVLOWAT", SOL_SOCKET, SO_RCVLOWAT, 0, OPT_INT},
+#endif
+#ifdef SO_SNDTIMEO
+ {"SO_SNDTIMEO", SOL_SOCKET, SO_SNDTIMEO, 0, OPT_INT},
+#endif
+#ifdef SO_RCVTIMEO
+ {"SO_RCVTIMEO", SOL_SOCKET, SO_RCVTIMEO, 0, OPT_INT},
+#endif
+ {NULL,0,0,0,0}};
+
+
+/****************************************************************************
+ Get the next token from a string, return False if none found
+ handles double-quotes.
+Based on a routine by GJC@VILLAGE.COM.
+Extensively modified by Andrew.Tridgell@anu.edu.au
+****************************************************************************/
+BOOL next_token(char **ptr,char *buff,char *sep)
+{
+ char *s;
+ BOOL quoted;
+ static char *last_ptr=NULL;
+
+ if (!ptr) ptr = &last_ptr;
+ if (!ptr) return(False);
+
+ s = *ptr;
+
+ /* default to simple separators */
+ if (!sep) sep = " \t\n\r";
+
+ /* find the first non sep char */
+ while(*s && strchr(sep,*s)) s++;
+
+ /* nothing left? */
+ if (! *s) return(False);
+
+ /* copy over the token */
+ for (quoted = False; *s && (quoted || !strchr(sep,*s)); s++)
+ {
+ if (*s == '\"')
+ quoted = !quoted;
+ else
+ *buff++ = *s;
+ }
+
+ *ptr = (*s) ? s+1 : s;
+ *buff = 0;
+ last_ptr = *ptr;
+
+ return(True);
+}
+
+
+/****************************************************************************
+set user socket options
+****************************************************************************/
+void set_socket_options(int fd, char *options)
+{
+ char tok[200];
+
+ while (next_token(&options,tok," \t,"))
+ {
+ int ret=0,i;
+ int value = 1;
+ char *p;
+ BOOL got_value = False;
+
+ if ((p = strchr(tok,'=')))
+ {
+ *p = 0;
+ value = atoi(p+1);
+ got_value = True;
+ }
+
+ for (i=0;socket_options[i].name;i++)
+ if (strcasecmp(socket_options[i].name,tok)==0)
+ break;
+
+ if (!socket_options[i].name)
+ {
+ printf("Unknown socket option %s\n",tok);
+ continue;
+ }
+
+ switch (socket_options[i].opttype)
+ {
+ case OPT_BOOL:
+ case OPT_INT:
+ ret = setsockopt(fd,socket_options[i].level,
+ socket_options[i].option,(char *)&value,sizeof(int));
+ break;
+
+ case OPT_ON:
+ if (got_value)
+ printf("syntax error - %s does not take a value\n",tok);
+
+ {
+ int on = socket_options[i].value;
+ ret = setsockopt(fd,socket_options[i].level,
+ socket_options[i].option,(char *)&on,sizeof(int));
+ }
+ break;
+ }
+
+ if (ret != 0)
+ printf("Failed to set socket option %s\n",tok);
+ }
+}
+
+/*
+ connect to a udp socket
+*/
+int udp_socket_connect(int port)
+{
+ int type = SOCK_DGRAM;
+ struct sockaddr_in sock_out;
+ int res;
+ struct hostent *hp;
+ const char *host = "localhost";
+
+ res = socket(PF_INET, type, 0);
+ if (res == -1) {
+ return -1;
+ }
+
+ hp = gethostbyname(host);
+ if (!hp) {
+ fprintf(stderr,"unknown host: %s\n", host);
+ close(res);
+ return -1;
+ }
+
+ memcpy(&sock_out.sin_addr, hp->h_addr, hp->h_length);
+ sock_out.sin_port = htons(port);
+ sock_out.sin_family = PF_INET;
+
+ if (connect(res,(struct sockaddr *)&sock_out,sizeof(sock_out))) {
+ fprintf(stderr,"failed to connect to %s - %s\n", host, strerror(errno));
+ close(res);
+ return -1;
+ }
+
+ return res;
+}
+
+
+/*
+ create a udp socket and bind it
+ return a file descriptor open on the socket
+*/
+static int udp_socket_bind(int port)
+{
+ struct hostent *hp;
+ struct sockaddr_in sock;
+ char host_name[1000];
+ int res;
+ int one=1;
+
+ /* get my host name */
+ if (gethostname(host_name, sizeof(host_name)) == -1) {
+ fprintf(stderr,"gethostname failed\n");
+ return -1;
+ }
+
+ /* get host info */
+ if ((hp = gethostbyname(host_name)) == 0) {
+ fprintf(stderr,"gethostbyname: Unknown host %s\n",host_name);
+ return -1;
+ }
+
+ memset((char *)&sock,0,sizeof(sock));
+ memcpy((char *)&sock.sin_addr,(char *)hp->h_addr, hp->h_length);
+ sock.sin_port = htons(port);
+ sock.sin_family = hp->h_addrtype;
+ sock.sin_addr.s_addr = INADDR_ANY;
+ res = socket(hp->h_addrtype, SOCK_DGRAM, 0);
+ if (res == -1) {
+ fprintf(stderr,"socket failed\n");
+ return -1;
+ }
+
+ setsockopt(res,SOL_SOCKET,SO_REUSEADDR,(char *)&one,sizeof(one));
+
+ /* now we've got a socket - we need to bind it */
+ if (bind(res, (struct sockaddr * ) &sock,sizeof(sock)) == -1) {
+ fprintf(stderr,"bind failed on port %d\n", port);
+ close(res);
+ return -1;
+ }
+
+ return res;
+}
+
+static void worker(int port1, int port2, int w)
+{
+ int s1 = udp_socket_bind(port1);
+ int s2;
+ int count=0;
+
+ set_socket_options(s1, "SO_REUSEADDR");
+
+ sleep(2);
+
+ s2 = udp_socket_connect(port2);
+
+ start_timer();
+
+ while (1) {
+ char c=0;
+ if (write(s2, &c, 1) != 1) {
+ fatal("write");
+ }
+ if (read(s1, &c, 1) != 1) {
+ fatal("read");
+ }
+ if (w == 1 && (end_timer() > 1.0)) {
+ printf("%8u ops/sec\r",
+ (unsigned)(2*count/end_timer()));
+ fflush(stdout);
+ start_timer();
+ count=0;
+ }
+ count++;
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ if (fork() == 0) {
+ worker(1313, 1314, 0);
+ } else {
+ worker(1314, 1313, 1);
+ }
+ return 0;
+}
--- /dev/null
+/*
+ measure latency of udp sockets
+ tridge@samba.org July 2006
+*/
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/poll.h>
+#include <sys/time.h>
+#include <time.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <netinet/udp.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+
+
+typedef int BOOL;
+
+#define True 1
+#define False 0
+
+static struct timeval tp1,tp2;
+
+static void start_timer()
+{
+ gettimeofday(&tp1,NULL);
+}
+
+static double end_timer()
+{
+ gettimeofday(&tp2,NULL);
+ return (tp2.tv_sec + (tp2.tv_usec*1.0e-6)) -
+ (tp1.tv_sec + (tp1.tv_usec*1.0e-6));
+}
+
+static void fatal(const char *why)
+{
+ fprintf(stderr, "fatal: %s - %s\n", why, strerror(errno));
+ exit(1);
+}
+
+enum SOCK_OPT_TYPES {OPT_BOOL,OPT_INT,OPT_ON};
+
+struct
+{
+ char *name;
+ int level;
+ int option;
+ int value;
+ int opttype;
+} socket_options[] = {
+ {"SO_KEEPALIVE", SOL_SOCKET, SO_KEEPALIVE, 0, OPT_BOOL},
+ {"SO_REUSEADDR", SOL_SOCKET, SO_REUSEADDR, 0, OPT_BOOL},
+ {"SO_BROADCAST", SOL_SOCKET, SO_BROADCAST, 0, OPT_BOOL},
+#ifdef TCP_NODELAY
+ {"TCP_NODELAY", IPPROTO_TCP, TCP_NODELAY, 0, OPT_BOOL},
+#endif
+#ifdef IPTOS_LOWDELAY
+ {"IPTOS_LOWDELAY", IPPROTO_IP, IP_TOS, IPTOS_LOWDELAY, OPT_ON},
+#endif
+#ifdef IPTOS_THROUGHPUT
+ {"IPTOS_THROUGHPUT", IPPROTO_IP, IP_TOS, IPTOS_THROUGHPUT, OPT_ON},
+#endif
+#ifdef SO_SNDBUF
+ {"SO_SNDBUF", SOL_SOCKET, SO_SNDBUF, 0, OPT_INT},
+#endif
+#ifdef SO_RCVBUF
+ {"SO_RCVBUF", SOL_SOCKET, SO_RCVBUF, 0, OPT_INT},
+#endif
+#ifdef SO_SNDLOWAT
+ {"SO_SNDLOWAT", SOL_SOCKET, SO_SNDLOWAT, 0, OPT_INT},
+#endif
+#ifdef SO_RCVLOWAT
+ {"SO_RCVLOWAT", SOL_SOCKET, SO_RCVLOWAT, 0, OPT_INT},
+#endif
+#ifdef SO_SNDTIMEO
+ {"SO_SNDTIMEO", SOL_SOCKET, SO_SNDTIMEO, 0, OPT_INT},
+#endif
+#ifdef SO_RCVTIMEO
+ {"SO_RCVTIMEO", SOL_SOCKET, SO_RCVTIMEO, 0, OPT_INT},
+#endif
+ {NULL,0,0,0,0}};
+
+
+/****************************************************************************
+ Get the next token from a string, return False if none found
+ handles double-quotes.
+Based on a routine by GJC@VILLAGE.COM.
+Extensively modified by Andrew.Tridgell@anu.edu.au
+****************************************************************************/
+BOOL next_token(char **ptr,char *buff,char *sep)
+{
+ char *s;
+ BOOL quoted;
+ static char *last_ptr=NULL;
+
+ if (!ptr) ptr = &last_ptr;
+ if (!ptr) return(False);
+
+ s = *ptr;
+
+ /* default to simple separators */
+ if (!sep) sep = " \t\n\r";
+
+ /* find the first non sep char */
+ while(*s && strchr(sep,*s)) s++;
+
+ /* nothing left? */
+ if (! *s) return(False);
+
+ /* copy over the token */
+ for (quoted = False; *s && (quoted || !strchr(sep,*s)); s++)
+ {
+ if (*s == '\"')
+ quoted = !quoted;
+ else
+ *buff++ = *s;
+ }
+
+ *ptr = (*s) ? s+1 : s;
+ *buff = 0;
+ last_ptr = *ptr;
+
+ return(True);
+}
+
+
+/****************************************************************************
+set user socket options
+****************************************************************************/
+void set_socket_options(int fd, char *options)
+{
+ char tok[200];
+
+ while (next_token(&options,tok," \t,"))
+ {
+ int ret=0,i;
+ int value = 1;
+ char *p;
+ BOOL got_value = False;
+
+ if ((p = strchr(tok,'=')))
+ {
+ *p = 0;
+ value = atoi(p+1);
+ got_value = True;
+ }
+
+ for (i=0;socket_options[i].name;i++)
+ if (strcasecmp(socket_options[i].name,tok)==0)
+ break;
+
+ if (!socket_options[i].name)
+ {
+ printf("Unknown socket option %s\n",tok);
+ continue;
+ }
+
+ switch (socket_options[i].opttype)
+ {
+ case OPT_BOOL:
+ case OPT_INT:
+ ret = setsockopt(fd,socket_options[i].level,
+ socket_options[i].option,(char *)&value,sizeof(int));
+ break;
+
+ case OPT_ON:
+ if (got_value)
+ printf("syntax error - %s does not take a value\n",tok);
+
+ {
+ int on = socket_options[i].value;
+ ret = setsockopt(fd,socket_options[i].level,
+ socket_options[i].option,(char *)&on,sizeof(int));
+ }
+ break;
+ }
+
+ if (ret != 0)
+ printf("Failed to set socket option %s\n",tok);
+ }
+}
+
+/*
+ connect to a udp socket
+*/
+int udp_socket_connect(const char *host, int port)
+{
+ int type = SOCK_DGRAM;
+ struct sockaddr_in sock_out;
+ int res;
+ struct hostent *hp;
+
+ res = socket(PF_INET, type, 0);
+ if (res == -1) {
+ return -1;
+ }
+
+ hp = gethostbyname(host);
+ if (!hp) {
+ fprintf(stderr,"unknown host: %s\n", host);
+ close(res);
+ return -1;
+ }
+
+ memcpy(&sock_out.sin_addr, hp->h_addr, hp->h_length);
+ sock_out.sin_port = htons(port);
+ sock_out.sin_family = PF_INET;
+
+ if (connect(res,(struct sockaddr *)&sock_out,sizeof(sock_out))) {
+ fprintf(stderr,"failed to connect to %s - %s\n", host, strerror(errno));
+ close(res);
+ return -1;
+ }
+
+ return res;
+}
+
+
+/*
+ create a udp socket and bind it
+ return a file descriptor open on the socket
+*/
+static int udp_socket_bind(int port)
+{
+ struct hostent *hp;
+ struct sockaddr_in sock;
+ char host_name[1000];
+ int res;
+ int one=1;
+
+ /* get my host name */
+ if (gethostname(host_name, sizeof(host_name)) == -1) {
+ fprintf(stderr,"gethostname failed\n");
+ return -1;
+ }
+
+ /* get host info */
+ if ((hp = gethostbyname(host_name)) == 0) {
+ fprintf(stderr,"gethostbyname: Unknown host %s\n",host_name);
+ return -1;
+ }
+
+ memset((char *)&sock,0,sizeof(sock));
+ memcpy((char *)&sock.sin_addr,(char *)hp->h_addr, hp->h_length);
+ sock.sin_port = htons(port);
+ sock.sin_family = hp->h_addrtype;
+ sock.sin_addr.s_addr = INADDR_ANY;
+ res = socket(hp->h_addrtype, SOCK_DGRAM, 0);
+ if (res == -1) {
+ fprintf(stderr,"socket failed\n");
+ return -1;
+ }
+
+ setsockopt(res,SOL_SOCKET,SO_REUSEADDR,(char *)&one,sizeof(one));
+
+ /* now we've got a socket - we need to bind it */
+ if (bind(res, (struct sockaddr * ) &sock,sizeof(sock)) == -1) {
+ fprintf(stderr,"bind failed on port %d\n", port);
+ close(res);
+ return -1;
+ }
+
+ listen(res, 1);
+
+ return res;
+}
+
+static void worker(const char *host, int port1, int port2, int w)
+{
+ int s1 = udp_socket_bind(port1);
+ int s2;
+ int count=0;
+
+ sleep(2);
+
+ s2 = udp_socket_connect(host, port2);
+
+ start_timer();
+
+ while (1) {
+ char c=0;
+ if (write(s2, &c, 1) != 1) {
+ fatal("write");
+ }
+ if (read(s1, &c, 1) != 1) {
+ fatal("read");
+ }
+ if (w == 1 && (end_timer() > 1.0)) {
+ printf("%8u ops/sec\n",
+ (unsigned)(2*count/end_timer()));
+ fflush(stdout);
+ start_timer();
+ count=0;
+ }
+ count++;
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ worker(argv[1], atoi(argv[2]), atoi(argv[3]), 1);
+ return 0;
+}
--- /dev/null
+/*
+ measure latency of unix domain sockets
+ tridge@samba.org July 2006
+*/
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/poll.h>
+#include <sys/time.h>
+#include <time.h>
+#include <errno.h>
+
+
+static struct timeval tp1,tp2;
+
+static void start_timer()
+{
+ gettimeofday(&tp1,NULL);
+}
+
+static double end_timer()
+{
+ gettimeofday(&tp2,NULL);
+ return (tp2.tv_sec + (tp2.tv_usec*1.0e-6)) -
+ (tp1.tv_sec + (tp1.tv_usec*1.0e-6));
+}
+
+static void fatal(const char *why)
+{
+ fprintf(stderr, "fatal: %s - %s\n", why, strerror(errno));
+ exit(1);
+}
+
+/*
+ connect to a unix domain socket
+*/
+int ux_socket_connect(const char *name)
+{
+ int fd;
+ struct sockaddr_un addr;
+
+ memset(&addr, 0, sizeof(addr));
+ addr.sun_family = AF_UNIX;
+ strncpy(addr.sun_path, name, sizeof(addr.sun_path));
+
+ fd = socket(AF_UNIX, SOCK_DGRAM, 0);
+ if (fd == -1) {
+ return -1;
+ }
+
+ if (connect(fd, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
+ close(fd);
+ return -1;
+ }
+
+ return fd;
+}
+
+
+/*
+ create a unix domain socket and bind it
+ return a file descriptor open on the socket
+*/
+static int ux_socket_bind(const char *name)
+{
+ int fd;
+ struct sockaddr_un addr;
+
+ /* get rid of any old socket */
+ unlink(name);
+
+ fd = socket(AF_UNIX, SOCK_DGRAM, 0);
+ if (fd == -1) return -1;
+
+ memset(&addr, 0, sizeof(addr));
+ addr.sun_family = AF_UNIX;
+ strncpy(addr.sun_path, name, sizeof(addr.sun_path));
+
+ if (bind(fd, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
+ close(fd);
+ return -1;
+ }
+
+ return fd;
+}
+
+static void worker(const char *n1, const char *n2, int w)
+{
+ int s1 = ux_socket_bind(n1);
+ int s2;
+ int count=0;
+
+ sleep(1);
+
+ s2 = ux_socket_connect(n2);
+ start_timer();
+
+ while (1) {
+ char c=0;
+ if (write(s2, &c, 1) != 1) {
+ fatal("write");
+ }
+ if (read(s1, &c, 1) != 1) {
+ fatal("read");
+ }
+ if (w == 1 && (end_timer() > 1.0)) {
+ printf("%8u ops/sec\r",
+ (unsigned)(2*count/end_timer()));
+ fflush(stdout);
+ start_timer();
+ count=0;
+ }
+ count++;
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ if (fork() == 0) {
+ worker("sock2.unx", "sock1.unx", 0);
+ }
+ worker("sock1.unx", "sock2.unx", 1);
+ return 0;
+}
--- /dev/null
+/*
+ measure latency of unix domain sockets
+ tridge@samba.org July 2006
+*/
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/poll.h>
+#include <sys/time.h>
+#include <time.h>
+#include <errno.h>
+
+
+static struct timeval tp1,tp2;
+
+static void start_timer()
+{
+ gettimeofday(&tp1,NULL);
+}
+
+static double end_timer()
+{
+ gettimeofday(&tp2,NULL);
+ return (tp2.tv_sec + (tp2.tv_usec*1.0e-6)) -
+ (tp1.tv_sec + (tp1.tv_usec*1.0e-6));
+}
+
+static void fatal(const char *why)
+{
+ fprintf(stderr, "fatal: %s - %s\n", why, strerror(errno));
+ exit(1);
+}
+
+/*
+ connect to a unix domain socket
+*/
+int ux_socket_connect(const char *name)
+{
+ int fd;
+ struct sockaddr_un addr;
+
+ memset(&addr, 0, sizeof(addr));
+ addr.sun_family = AF_UNIX;
+ strncpy(addr.sun_path, name, sizeof(addr.sun_path));
+
+ fd = socket(AF_UNIX, SOCK_STREAM, 0);
+ if (fd == -1) {
+ return -1;
+ }
+
+ if (connect(fd, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
+ close(fd);
+ return -1;
+ }
+
+ return fd;
+}
+
+
+/*
+ create a unix domain socket and bind it
+ return a file descriptor open on the socket
+*/
+static int ux_socket_bind(const char *name)
+{
+ int fd;
+ struct sockaddr_un addr;
+
+ /* get rid of any old socket */
+ unlink(name);
+
+ fd = socket(AF_UNIX, SOCK_STREAM, 0);
+ if (fd == -1) return -1;
+
+ memset(&addr, 0, sizeof(addr));
+ addr.sun_family = AF_UNIX;
+ strncpy(addr.sun_path, name, sizeof(addr.sun_path));
+
+ if (bind(fd, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
+ close(fd);
+ return -1;
+ }
+
+ listen(fd, 1);
+
+ return fd;
+}
+
+/*
+ accept on a unix socket
+*/
+static int ux_socket_accept(int fd)
+{
+ struct sockaddr a;
+ socklen_t len;
+ return accept(fd, &a, &len);
+}
+
+static void worker(const char *n1, const char *n2, int w)
+{
+ int l = ux_socket_bind(n1);
+ int s2, s1;
+ int count=0;
+
+ sleep(1);
+
+ s2 = ux_socket_connect(n2);
+ s1 = ux_socket_accept(l);
+ start_timer();
+
+ while (1) {
+ char c=0;
+ if (write(s2, &c, 1) != 1) {
+ fatal("write");
+ }
+ if (read(s1, &c, 1) != 1) {
+ fatal("read");
+ }
+ if (w == 1 && (end_timer() > 1.0)) {
+ printf("%8u ops/sec\r",
+ (unsigned)(2*count/end_timer()));
+ fflush(stdout);
+ start_timer();
+ count=0;
+ }
+ count++;
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ if (fork() == 0) {
+ worker("sock2.unx", "sock1.unx", 0);
+ }
+ worker("sock1.unx", "sock2.unx", 1);
+ return 0;
+}
git.samba.org / tridge / junkcode.git / commitdiff