libjava/include/posix.h

   1 // posix.h -- Helper functions for POSIX-flavored OSs.
   2
   3 /* Copyright (C) 2000, 2002, 2003  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__) && defined(__ppc__)
  46 #define _Jv_platform_solib_suffix ".dylib"
  47 #else
  48 #define _Jv_platform_solib_suffix ".so"
  49 #endif
  50
  51 // Some POSIX systems don't have O_SYNC and O_DYSNC so we define them here.
  52 // Needed in java/io/natFileDescriptorPosix.cc.
  53 #if !defined (O_SYNC) && defined (O_FSYNC)
  54 #define O_SYNC O_FSYNC
  55 #endif
  56 #if !defined (O_DSYNC) && defined (O_FSYNC)
  57 #define O_DSYNC O_FSYNC
  58 #endif
  59 // If O_DSYNC is still not defined, use O_SYNC (needed for newlib)
  60 #if !defined (O_DSYNC)
  61 #define O_DSYNC O_SYNC
  62 #endif
  63
  64 // Separator for file name components.
  65 #define _Jv_platform_file_separator ((jchar) '/')
  66 // Separator for path components.
  67 #define _Jv_platform_path_separator ((jchar) ':')
  68
  69 // List of names for `JNI_OnLoad'.
  70 #define _Jv_platform_onload_names { "JNI_OnLoad", NULL }
  71
  72 // Type of libffi ABI used by JNICALL methods.  NOTE: This must agree
  73 // with the JNICALL definition in jni.h
  74 #define _Jv_platform_ffi_abi FFI_DEFAULT_ABI
  75
  76 #ifndef DISABLE_JAVA_NET
  77 #include <java/net/InetAddress.h>
  78 #endif
  79
  80 extern int _Jv_select (int n, fd_set *, fd_set *, fd_set *, struct timeval *);
  81 extern jlong _Jv_platform_gettimeofday ();
  82 extern void _Jv_platform_initialize (void);
  83 extern void _Jv_platform_initProperties (java::util::Properties*);
  84
  85 inline void
  86 _Jv_platform_close_on_exec (jint fd)
  87 {
  88   // Ignore errors.
  89   ::fcntl (fd, F_SETFD, FD_CLOEXEC);
  90 }
  91
  92 #undef fcntl
  93
  94 #ifdef JV_HASH_SYNCHRONIZATION
  95 #ifndef HAVE_USLEEP_DECL
  96 extern "C" int usleep (useconds_t useconds);
  97 #endif /* not HAVE_USLEEP_DECL */
  98
  99 inline void
 100 _Jv_platform_usleep (unsigned long usecs)
 101 {
 102   usleep (usecs);
 103 }
 104 #endif /* JV_HASH_SYNCHRONIZATION */
 105
 106 #ifndef DISABLE_JAVA_NET
 107
 108 #ifndef HAVE_SOCKLEN_T
 109 #define socklen_t int
 110 #endif
 111
 112 static inline int
 113 _Jv_socket (int domain, int type, int protocol)
 114 {
 115   return ::socket (domain, type, protocol);
 116 }
 117
 118 #undef socket
 119
 120 inline int
 121 _Jv_connect (jint fd, sockaddr *ptr, int len)
 122 {
 123    return ::connect (fd, ptr, len);
 124 }
 125
 126 #undef connect
 127
 128 inline int
 129 _Jv_close (jint fd)
 130 {
 131   return ::close (fd);
 132 }
 133
 134 #undef close
 135
 136 // Avoid macro definitions of bind from system headers, e.g. on
 137 // Solaris 7 with _XOPEN_SOURCE.  FIXME
 138 inline int
 139 _Jv_bind (int fd, struct sockaddr *addr, int addrlen)
 140 {
 141   return ::bind (fd, addr, addrlen);
 142 }
 143
 144 #undef bind
 145
 146 // Same problem with accept on Tru64 UNIX with _POSIX_PII_SOCKET
 147 inline int
 148 _Jv_accept (int fd, struct sockaddr *addr, socklen_t *addrlen)
 149 {
 150   return ::accept (fd, addr, addrlen);
 151 }
 152
 153 #undef accept
 154
 155 inline int
 156 _Jv_listen (int fd, int backlog)
 157 {
 158   return ::listen (fd, backlog);
 159 }
 160
 161 #undef listen
 162
 163 inline int
 164 _Jv_write(int s, void *buf, int len)
 165 {
 166   return ::write (s, buf, len);
 167 }
 168
 169 #undef write
 170
 171 inline int
 172 _Jv_read(int s, void *buf, int len)
 173 {
 174   return ::read (s, buf, len);
 175 }
 176
 177 #undef read
 178
 179 #endif /* DISABLE_JAVA_NET */
 180
 181 // Wraps ::pipe
 182 static inline int
 183 _Jv_pipe (int filedes[2])
 184 {
 185   return ::pipe (filedes);
 186 }
 187
 188 #endif /* __JV_POSIX_H__ */