libjava/include/posix.h

   1 // posix.h -- Helper functions for POSIX-flavored OSs.
   2
   3 /* Copyright (C) 2000, 2002, 2003, 2006  Free Software Foundation
   4
   5    This file is part of libgcj.
   6
   7 This software is copyrighted work licensed under the terms of the
   8 Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
   9 details.  */
  10
  11 #ifndef __JV_POSIX_H__
  12 #define __JV_POSIX_H__
  13
  14 /* Required on Tru64 UNIX V4/V5 so <sys/socket.h> defines prototypes of
  15    socket functions with socklen_t instead of size_t.  This must be defined
  16    early so <standards.h> defines the correct version of __PIIX.  */
  17 #define _POSIX_PII_SOCKET
  18
  19 #include <time.h>
  20 #include <sys/types.h>
  21
  22 #ifdef HAVE_SYS_TIME_H
  23 #include <sys/time.h>
  24 #endif
  25
  26 #ifdef HAVE_SYS_SELECT_H
  27 #include <sys/select.h>
  28 #endif
  29
  30 #ifdef HAVE_SYS_SOCKET_H
  31 #include <sys/socket.h>
  32 #endif
  33
  34 #ifdef HAVE_UNISTD_H
  35 #include <unistd.h>
  36 #endif
  37
  38 #include <fcntl.h>
  39
  40 #include <gcj/cni.h>
  41 #include <java/util/Properties.h>
  42
  43 // Prefix and suffix for shared libraries.
  44 #define _Jv_platform_solib_prefix "lib"
  45 #if defined(__APPLE__) && defined(__MACH__)
  46 #define _Jv_platform_solib_suffix ".dylib"
  47 #elif defined(HPUX) && defined(HP_PA)
  48 #define _Jv_platform_solib_suffix ".sl"
  49 #else
  50 #define _Jv_platform_solib_suffix ".so"
  51 #endif
  52
  53 // Some POSIX systems don't have O_SYNC and O_DYSNC so we define them here.
  54 // Needed in java/io/natFileDescriptorPosix.cc.
  55 #if !defined (O_SYNC) && defined (O_FSYNC)
  56 #define O_SYNC O_FSYNC
  57 #endif
  58 #if !defined (O_DSYNC) && defined (O_FSYNC)
  59 #define O_DSYNC O_FSYNC
  60 #endif
  61 // If O_DSYNC is still not defined, use O_SYNC (needed for newlib)
  62 #if !defined (O_DSYNC)
  63 #define O_DSYNC O_SYNC
  64 #endif
  65
  66 // Separator for file name components.
  67 #define _Jv_platform_file_separator ((jchar) '/')
  68 // Separator for path components.
  69 #define _Jv_platform_path_separator ((jchar) ':')
  70
  71 // List of names for `JNI_OnLoad'.
  72 #define _Jv_platform_onload_names { "JNI_OnLoad", NULL }
  73
  74 // Type of libffi ABI used by JNICALL methods.  NOTE: This must agree
  75 // with the JNICALL definition in jni.h
  76 #define _Jv_platform_ffi_abi FFI_DEFAULT_ABI
  77
  78 #ifndef DISABLE_JAVA_NET
  79 #include <java/net/InetAddress.h>
  80 #endif
  81
  82 extern int _Jv_select (int n, fd_set *, fd_set *, fd_set *, struct timeval *);
  83 extern jlong _Jv_platform_gettimeofday ();
  84 extern jlong _Jv_platform_nanotime ();
  85 extern void _Jv_platform_initialize (void);
  86 extern void _Jv_platform_initProperties (java::util::Properties*);
  87
  88 inline void
  89 _Jv_platform_close_on_exec (jint fd)
  90 {
  91   // Ignore errors.
  92   ::fcntl (fd, F_SETFD, FD_CLOEXEC);
  93 }
  94
  95 #undef fcntl
  96
  97 #ifdef JV_HASH_SYNCHRONIZATION
  98 #ifndef HAVE_USLEEP_DECL
  99 extern "C" int usleep (useconds_t useconds);
 100 #endif /* not HAVE_USLEEP_DECL */
 101
 102 inline void
 103 _Jv_platform_usleep (unsigned long usecs)
 104 {
 105   usleep (usecs);
 106 }
 107 #endif /* JV_HASH_SYNCHRONIZATION */
 108
 109 #ifndef DISABLE_JAVA_NET
 110
 111 #ifndef HAVE_SOCKLEN_T
 112 #define socklen_t int
 113 #endif
 114
 115 static inline int
 116 _Jv_socket (int domain, int type, int protocol)
 117 {
 118   return ::socket (domain, type, protocol);
 119 }
 120
 121 #undef socket
 122
 123 inline int
 124 _Jv_connect (jint fd, sockaddr *ptr, int len)
 125 {
 126    return ::connect (fd, ptr, len);
 127 }
 128
 129 #undef connect
 130
 131 inline int
 132 _Jv_close (jint fd)
 133 {
 134   return ::close (fd);
 135 }
 136
 137 #undef close
 138
 139 // Avoid macro definitions of bind from system headers, e.g. on
 140 // Solaris 7 with _XOPEN_SOURCE.  FIXME
 141 inline int
 142 _Jv_bind (int fd, struct sockaddr *addr, int addrlen)
 143 {
 144   return ::bind (fd, addr, addrlen);
 145 }
 146
 147 #undef bind
 148
 149 // Same problem with accept on Tru64 UNIX with _POSIX_PII_SOCKET
 150 inline int
 151 _Jv_accept (int fd, struct sockaddr *addr, socklen_t *addrlen)
 152 {
 153   return ::accept (fd, addr, addrlen);
 154 }
 155
 156 #undef accept
 157
 158 inline int
 159 _Jv_listen (int fd, int backlog)
 160 {
 161   return ::listen (fd, backlog);
 162 }
 163
 164 #undef listen
 165
 166 inline int
 167 _Jv_write(int s, void *buf, int len)
 168 {
 169   return ::write (s, buf, len);
 170 }
 171
 172 #undef write
 173
 174 inline int
 175 _Jv_read(int s, void *buf, int len)
 176 {
 177   return ::read (s, buf, len);
 178 }
 179
 180 #undef read
 181
 182 #endif /* DISABLE_JAVA_NET */
 183
 184 // Wraps ::pipe
 185 static inline int
 186 _Jv_pipe (int filedes[2])
 187 {
 188   return ::pipe (filedes);
 189 }
 190
 191 #endif /* __JV_POSIX_H__ */