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 /* The header file <sys/rw_lock.h> needs to be included before javaprims.h
  41    on HP-UX 11 to avoid a compilation error.  */
  42 #ifdef HAVE_SYS_RW_LOCK_H
  43 #include <sys/rw_lock.h>
  44 #endif
  45
  46 #include <gcj/cni.h>
  47 #include <java/util/Properties.h>
  48
  49 // Prefix and suffix for shared libraries.
  50 #define _Jv_platform_solib_prefix "lib"
  51 #if defined(__APPLE__) && defined(__MACH__)
  52 #define _Jv_platform_solib_suffix ".dylib"
  53 #elif defined(HPUX) && defined(HP_PA)
  54 #define _Jv_platform_solib_suffix ".sl"
  55 #else
  56 #define _Jv_platform_solib_suffix ".so"
  57 #endif
  58
  59 #if __MACH__ && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1060)
  60 #  undef _Unwind_FindEnclosingFunction
  61 #  define _Unwind_FindEnclosingFunction(PC) _darwin10_Unwind_FindEnclosingFunction(PC)
  62 #endif
  63
  64 // Some POSIX systems don't have O_SYNC and O_DYSNC so we define them here.
  65 // Needed in java/io/natFileDescriptorPosix.cc.
  66 #if !defined (O_SYNC) && defined (O_FSYNC)
  67 #define O_SYNC O_FSYNC
  68 #endif
  69 #if !defined (O_DSYNC) && defined (O_FSYNC)
  70 #define O_DSYNC O_FSYNC
  71 #endif
  72 // If O_DSYNC is still not defined, use O_SYNC (needed for newlib)
  73 #if !defined (O_DSYNC)
  74 #define O_DSYNC O_SYNC
  75 #endif
  76
  77 // Name of the Process implementation.
  78 #ifdef ECOS
  79 #define _Jv_platform_process ::java::lang::EcosProcess
  80 #else
  81 #define _Jv_platform_process ::java::lang::PosixProcess
  82 #endif
  83
  84 // Separator for file name components.
  85 #define _Jv_platform_file_separator ((jchar) '/')
  86 // Separator for path components.
  87 #define _Jv_platform_path_separator ((jchar) ':')
  88
  89 // List of names for `JNI_OnLoad'.
  90 #define _Jv_platform_onload_names { "JNI_OnLoad", NULL }
  91
  92 // Type of libffi ABI used by JNICALL methods.  NOTE: This must agree
  93 // with the JNICALL definition in jni.h
  94 #define _Jv_platform_ffi_abi FFI_DEFAULT_ABI
  95
  96 #ifndef DISABLE_JAVA_NET
  97 #include <java/net/InetAddress.h>
  98 #endif
  99
 100 extern int _Jv_select (int n, fd_set *, fd_set *, fd_set *, struct timeval *);
 101 extern jlong _Jv_platform_gettimeofday ();
 102 extern jlong _Jv_platform_nanotime ();
 103 extern void _Jv_platform_initialize (void);
 104 extern void _Jv_platform_initProperties (java::util::Properties*);
 105
 106 #ifdef JV_HASH_SYNCHRONIZATION
 107 #ifndef HAVE_USLEEP_DECL
 108 extern "C" int usleep (useconds_t useconds);
 109 #endif /* not HAVE_USLEEP_DECL */
 110
 111 inline void
 112 _Jv_platform_usleep (unsigned long usecs)
 113 {
 114   usleep (usecs);
 115 }
 116 #endif /* JV_HASH_SYNCHRONIZATION */
 117
 118 #ifndef DISABLE_JAVA_NET
 119
 120 #ifndef HAVE_SOCKLEN_T
 121 #define socklen_t int
 122 #endif
 123
 124 static inline int
 125 _Jv_socket (int domain, int type, int protocol)
 126 {
 127   return ::socket (domain, type, protocol);
 128 }
 129
 130 #undef socket
 131
 132 inline int
 133 _Jv_connect (jint fd, sockaddr *ptr, int len)
 134 {
 135    return ::connect (fd, ptr, len);
 136 }
 137
 138 #undef connect
 139
 140 inline int
 141 _Jv_close (jint fd)
 142 {
 143   return ::close (fd);
 144 }
 145
 146 #undef close
 147
 148 // Avoid macro definitions of bind from system headers, e.g. on
 149 // Solaris 7 with _XOPEN_SOURCE.  FIXME
 150 inline int
 151 _Jv_bind (int fd, struct sockaddr *addr, int addrlen)
 152 {
 153   return ::bind (fd, addr, addrlen);
 154 }
 155
 156 #undef bind
 157
 158 // Same problem with accept on Tru64 UNIX with _POSIX_PII_SOCKET
 159 inline int
 160 _Jv_accept (int fd, struct sockaddr *addr, socklen_t *addrlen)
 161 {
 162   return ::accept (fd, addr, addrlen);
 163 }
 164
 165 #undef accept
 166
 167 inline int
 168 _Jv_listen (int fd, int backlog)
 169 {
 170   return ::listen (fd, backlog);
 171 }
 172
 173 #undef listen
 174
 175 inline int
 176 _Jv_write(int s, void *buf, int len)
 177 {
 178   return ::write (s, buf, len);
 179 }
 180
 181 #undef write
 182
 183 inline int
 184 _Jv_read(int s, void *buf, int len)
 185 {
 186   return ::read (s, buf, len);
 187 }
 188
 189 #undef read
 190
 191 #endif /* DISABLE_JAVA_NET */
 192
 193 // Wraps ::pipe
 194 static inline int
 195 _Jv_pipe (int filedes[2])
 196 {
 197   return ::pipe (filedes);
 198 }
 199
 200 // Forward declaration.  See java-stack.h for definition.
 201 struct _Jv_AddrInfo;
 202
 203 // Given an address, determine the executable or shared object that defines
 204 // it and the nearest named symbol.
 205 extern int _Jv_platform_dladdr (void *addr, _Jv_AddrInfo *info);
 206
 207 #endif /* __JV_POSIX_H__ */