/* * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ #ifndef NET_UTILS_MD_H #define NET_UTILS_MD_H #include #include #include #include #include #ifndef USE_SELECT #include #endif /* AIX needs a workaround for I/O cancellation, see: http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.basetechref/doc/basetrf1/close.htm ... The close subroutine is blocked until all subroutines which use the file descriptor return to usr space. For example, when a thread is calling close and another thread is calling select with the same file descriptor, the close subroutine does not return until the select call returns. ... */ #if defined(__linux__) || defined(MACOSX) || defined (_AIX) extern int NET_Timeout(int s, long timeout); extern int NET_Read(int s, void* buf, size_t len); extern int NET_RecvFrom(int s, void *buf, int len, unsigned int flags, struct sockaddr *from, int *fromlen); extern int NET_ReadV(int s, const struct iovec * vector, int count); extern int NET_Send(int s, void *msg, int len, unsigned int flags); extern int NET_SendTo(int s, const void *msg, int len, unsigned int flags, const struct sockaddr *to, int tolen); extern int NET_Writev(int s, const struct iovec * vector, int count); extern int NET_Connect(int s, struct sockaddr *addr, int addrlen); extern int NET_Accept(int s, struct sockaddr *addr, int *addrlen); extern int NET_SocketClose(int s); extern int NET_Dup2(int oldfd, int newfd); #ifdef USE_SELECT extern int NET_Select(int s, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout); #else extern int NET_Poll(struct pollfd *ufds, unsigned int nfds, int timeout); #endif #else #define NET_Timeout JVM_Timeout #define NET_Read JVM_Read #define NET_RecvFrom JVM_RecvFrom #define NET_ReadV readv #define NET_Send JVM_Send #define NET_SendTo JVM_SendTo #define NET_WriteV writev #define NET_Connect JVM_Connect #define NET_Accept JVM_Accept #define NET_SocketClose JVM_SocketClose #define NET_Dup2 dup2 #define NET_Select select #define NET_Poll poll #endif #if defined(__linux__) && defined(AF_INET6) int getDefaultIPv6Interface(struct in6_addr *target_addr); #endif #ifdef __solaris__ extern int net_getParam(char *driver, char *param); #ifndef SO_FLOW_SLA #define SO_FLOW_SLA 0x1018 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4 #pragma pack(4) #endif /* * Used with the setsockopt(SO_FLOW_SLA, ...) call to set * per socket service level properties. * When the application uses per-socket API, we will enforce the properties * on both outbound and inbound packets. * * For now, only priority and maxbw are supported in SOCK_FLOW_PROP_VERSION1. */ typedef struct sock_flow_props_s { int sfp_version; uint32_t sfp_mask; int sfp_priority; /* flow priority */ uint64_t sfp_maxbw; /* bandwidth limit in bps */ int sfp_status; /* flow create status for getsockopt */ } sock_flow_props_t; #define SOCK_FLOW_PROP_VERSION1 1 /* bit mask values for sfp_mask */ #define SFP_MAXBW 0x00000001 /* Flow Bandwidth Limit */ #define SFP_PRIORITY 0x00000008 /* Flow priority */ /* possible values for sfp_priority */ #define SFP_PRIO_NORMAL 1 #define SFP_PRIO_HIGH 2 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4 #pragma pack() #endif /* _LONG_LONG_ALIGNMENT */ #endif /* SO_FLOW_SLA */ #endif /* __solaris__ */ void ThrowUnknownHostExceptionWithGaiError(JNIEnv *env, const char* hostname, int gai_error); #define NET_WAIT_READ 0x01 #define NET_WAIT_WRITE 0x02 #define NET_WAIT_CONNECT 0x04 extern jint NET_Wait(JNIEnv *env, jint fd, jint flags, jint timeout); /************************************************************************ * Macros and constants */ /* * On 64-bit JDKs we use a much larger stack and heap buffer. */ #ifdef _LP64 #define MAX_BUFFER_LEN 65536 #define MAX_HEAP_BUFFER_LEN 131072 #else #define MAX_BUFFER_LEN 8192 #define MAX_HEAP_BUFFER_LEN 65536 #endif #ifdef AF_INET6 #define SOCKADDR union { \ struct sockaddr_in him4; \ struct sockaddr_in6 him6; \ } #define SOCKADDR_LEN (ipv6_available() ? sizeof(SOCKADDR) : \ sizeof(struct sockaddr_in)) #else #define SOCKADDR union { struct sockaddr_in him4; } #define SOCKADDR_LEN sizeof(SOCKADDR) #endif /************************************************************************ * Utilities */ #ifdef __linux__ extern int kernelIsV24(); #endif void NET_ThrowByNameWithLastError(JNIEnv *env, const char *name, const char *defaultDetail); #endif /* NET_UTILS_MD_H */