BITOP command 10x speed improvement.

[redis.git] / src / anet.c

diff --git a/src/anet.c b/src/anet.c
index 99cda01193edef52648ed5049231000d050affe1..434d945c7d850edd8b8a8934d254bbc88e5d62d0 100644 (file)
--- a/src/anet.c
+++ b/src/anet.c
@@ -32,6 +32,7 @@
 
 #include <sys/types.h>
 #include <sys/socket.h>
+#include <sys/stat.h>
 #include <sys/un.h>
 #include <netinet/in.h>
 #include <netinet/tcp.h>
@@ -64,11 +65,11 @@ int anetNonBlock(char *err, int fd)
      * Note that fcntl(2) for F_GETFL and F_SETFL can't be
      * interrupted by a signal. */
     if ((flags = fcntl(fd, F_GETFL)) == -1) {
-        anetSetError(err, "fcntl(F_GETFL): %s\n", strerror(errno));
+        anetSetError(err, "fcntl(F_GETFL): %s", strerror(errno));
         return ANET_ERR;
     }
     if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1) {
-        anetSetError(err, "fcntl(F_SETFL,O_NONBLOCK): %s\n", strerror(errno));
+        anetSetError(err, "fcntl(F_SETFL,O_NONBLOCK): %s", strerror(errno));
         return ANET_ERR;
     }
     return ANET_OK;
@@ -79,7 +80,7 @@ int anetTcpNoDelay(char *err, int fd)
     int yes = 1;
     if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &yes, sizeof(yes)) == -1)
     {
-        anetSetError(err, "setsockopt TCP_NODELAY: %s\n", strerror(errno));
+        anetSetError(err, "setsockopt TCP_NODELAY: %s", strerror(errno));
         return ANET_ERR;
     }
     return ANET_OK;
@@ -89,7 +90,7 @@ int anetSetSendBuffer(char *err, int fd, int buffsize)
 {
     if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &buffsize, sizeof(buffsize)) == -1)
     {
-        anetSetError(err, "setsockopt SO_SNDBUF: %s\n", strerror(errno));
+        anetSetError(err, "setsockopt SO_SNDBUF: %s", strerror(errno));
         return ANET_ERR;
     }
     return ANET_OK;
@@ -99,7 +100,7 @@ int anetTcpKeepAlive(char *err, int fd)
 {
     int yes = 1;
     if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &yes, sizeof(yes)) == -1) {
-        anetSetError(err, "setsockopt SO_KEEPALIVE: %s\n", strerror(errno));
+        anetSetError(err, "setsockopt SO_KEEPALIVE: %s", strerror(errno));
         return ANET_ERR;
     }
     return ANET_OK;
@@ -115,7 +116,7 @@ int anetResolve(char *err, char *host, char *ipbuf)
 
         he = gethostbyname(host);
         if (he == NULL) {
-            anetSetError(err, "can't resolve: %s\n", host);
+            anetSetError(err, "can't resolve: %s", host);
             return ANET_ERR;
         }
         memcpy(&sa.sin_addr, he->h_addr, sizeof(struct in_addr));
@@ -127,14 +128,14 @@ int anetResolve(char *err, char *host, char *ipbuf)
 static int anetCreateSocket(char *err, int domain) {
     int s, on = 1;
     if ((s = socket(domain, SOCK_STREAM, 0)) == -1) {
-        anetSetError(err, "creating socket: %s\n", strerror(errno));
+        anetSetError(err, "creating socket: %s", strerror(errno));
         return ANET_ERR;
     }
 
     /* Make sure connection-intensive things like the redis benckmark
      * will be able to close/open sockets a zillion of times */
     if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) == -1) {
-        anetSetError(err, "setsockopt SO_REUSEADDR: %s\n", strerror(errno));
+        anetSetError(err, "setsockopt SO_REUSEADDR: %s", strerror(errno));
         return ANET_ERR;
     }
     return s;
@@ -157,7 +158,7 @@ static int anetTcpGenericConnect(char *err, char *addr, int port, int flags)
 
         he = gethostbyname(addr);
         if (he == NULL) {
-            anetSetError(err, "can't resolve: %s\n", addr);
+            anetSetError(err, "can't resolve: %s", addr);
             close(s);
             return ANET_ERR;
         }
@@ -172,7 +173,7 @@ static int anetTcpGenericConnect(char *err, char *addr, int port, int flags)
             flags & ANET_CONNECT_NONBLOCK)
             return s;
 
-        anetSetError(err, "connect: %s\n", strerror(errno));
+        anetSetError(err, "connect: %s", strerror(errno));
         close(s);
         return ANET_ERR;
     }
@@ -208,7 +209,7 @@ int anetUnixGenericConnect(char *err, char *path, int flags)
             flags & ANET_CONNECT_NONBLOCK)
             return s;
 
-        anetSetError(err, "connect: %s\n", strerror(errno));
+        anetSetError(err, "connect: %s", strerror(errno));
         close(s);
         return ANET_ERR;
     }
@@ -257,12 +258,16 @@ int anetWrite(int fd, char *buf, int count)
 
 static int anetListen(char *err, int s, struct sockaddr *sa, socklen_t len) {
     if (bind(s,sa,len) == -1) {
-        anetSetError(err, "bind: %s\n", strerror(errno));
+        anetSetError(err, "bind: %s", strerror(errno));
         close(s);
         return ANET_ERR;
     }
-    if (listen(s, 511) == -1) { /* the magic 511 constant is from nginx */
-        anetSetError(err, "listen: %s\n", strerror(errno));
+
+    /* Use a backlog of 512 entries. We pass 511 to the listen() call because
+     * the kernel does: backlogsize = roundup_pow_of_two(backlogsize + 1);
+     * which will thus give us a backlog of 512 entries */
+    if (listen(s, 511) == -1) {
+        anetSetError(err, "listen: %s", strerror(errno));
         close(s);
         return ANET_ERR;
     }
@@ -282,7 +287,7 @@ int anetTcpServer(char *err, int port, char *bindaddr)
     sa.sin_port = htons(port);
     sa.sin_addr.s_addr = htonl(INADDR_ANY);
     if (bindaddr && inet_aton(bindaddr, &sa.sin_addr) == 0) {
-        anetSetError(err, "Invalid bind address\n");
+        anetSetError(err, "invalid bind address");
         close(s);
         return ANET_ERR;
     }
@@ -291,7 +296,7 @@ int anetTcpServer(char *err, int port, char *bindaddr)
     return s;
 }
 
-int anetUnixServer(char *err, char *path)
+int anetUnixServer(char *err, char *path, mode_t perm)
 {
     int s;
     struct sockaddr_un sa;
@@ -304,6 +309,8 @@ int anetUnixServer(char *err, char *path)
     strncpy(sa.sun_path,path,sizeof(sa.sun_path)-1);
     if (anetListen(err,s,(struct sockaddr*)&sa,sizeof(sa)) == ANET_ERR)
         return ANET_ERR;
+    if (perm)
+        chmod(sa.sun_path, perm);
     return s;
 }
 
@@ -315,7 +322,7 @@ static int anetGenericAccept(char *err, int s, struct sockaddr *sa, socklen_t *l
             if (errno == EINTR)
                 continue;
             else {
-                anetSetError(err, "accept: %s\n", strerror(errno));
+                anetSetError(err, "accept: %s", strerror(errno));
                 return ANET_ERR;
             }
         }
@@ -336,16 +343,27 @@ int anetTcpAccept(char *err, int s, char *ip, int *port) {
     return fd;
 }
 
-int anetUnixAccept(char *err, int s, char *path, int len) {
+int anetUnixAccept(char *err, int s) {
     int fd;
     struct sockaddr_un sa;
     socklen_t salen = sizeof(sa);
     if ((fd = anetGenericAccept(err,s,(struct sockaddr*)&sa,&salen)) == ANET_ERR)
         return ANET_ERR;
 
-    if (path) {
-        strncpy(path,sa.sun_path,len-1);
-        path[len-1] = 0;
-    }
     return fd;
 }
+
+int anetPeerToString(int fd, char *ip, int *port) {
+    struct sockaddr_in sa;
+    socklen_t salen = sizeof(sa);
+
+    if (getpeername(fd,(struct sockaddr*)&sa,&salen) == -1) {
+        *port = 0;
+        ip[0] = '?';
+        ip[1] = '\0';
+        return -1;
+    }
+    if (ip) strcpy(ip,inet_ntoa(sa.sin_addr));
+    if (port) *port = ntohs(sa.sin_port);
+    return 0;
+}