libjava/include/posix.h

   1 // posix.h -- Helper functions for POSIX-flavored OSs.
   2
   3 /* Copyright (C) 2000, 2002, 2003, 2006, 2010, 2012  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 #include <time.h>
  15 #include <sys/types.h>
  16
  17 #ifdef HAVE_SYS_TIME_H
  18 #include <sys/time.h>
  19 #endif
  20
  21 #ifdef HAVE_SYS_SELECT_H
  22 #include <sys/select.h>
  23 #endif
  24
  25 #ifdef HAVE_SYS_SOCKET_H
  26 #include <sys/socket.h>
  27 #endif
  28
  29 #ifdef HAVE_UNISTD_H
  30 #include <unistd.h>
  31 #endif
  32
  33 #include <fcntl.h>
  34
  35 /* The header file <sys/rw_lock.h> needs to be included before javaprims.h
  36    on HP-UX 11 to avoid a compilation error.  */
  37 #ifdef HAVE_SYS_RW_LOCK_H
  38 #include <sys/rw_lock.h>
  39 #endif
  40
  41 #include <gcj/cni.h>
  42 #include <java/util/Properties.h>
  43
  44 // Prefix and suffix for shared libraries.
  45 #define _Jv_platform_solib_prefix "lib"
  46 #if defined(__APPLE__) && defined(__MACH__)
  47 #define _Jv_platform_solib_suffix ".dylib"
  48 #elif defined(HPUX) && defined(HP_PA)
  49 #define _Jv_platform_solib_suffix ".sl"
  50 #else
  51 #define _Jv_platform_solib_suffix ".so"
  52 #endif
  53
  54 #if __MACH__ && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1060)
  55 #  undef _Unwind_FindEnclosingFunction
  56 #  define _Unwind_FindEnclosingFunction(PC) _darwin10_Unwind_FindEnclosingFunction(PC)
  57 #endif
  58
  59 // Some POSIX systems don't have O_SYNC and O_DYSNC so we define them here.
  60 // Needed in java/io/natFileDescriptorPosix.cc.
  61 #if !defined (O_SYNC) && defined (O_FSYNC)
  62 #define O_SYNC O_FSYNC
  63 #endif
  64 #if !defined (O_DSYNC) && defined (O_FSYNC)
  65 #define O_DSYNC O_FSYNC
  66 #endif
  67 // If O_DSYNC is still not defined, use O_SYNC (needed for newlib)
  68 #if !defined (O_DSYNC)
  69 #define O_DSYNC O_SYNC
  70 #endif
  71
  72 // Name of the Process implementation.
  73 #ifdef ECOS
  74 #define _Jv_platform_process ::java::lang::EcosProcess
  75 #else
  76 #define _Jv_platform_process ::java::lang::PosixProcess
  77 #endif
  78
  79 // Separator for file name components.
  80 #define _Jv_platform_file_separator ((jchar) '/')
  81 // Separator for path components.
  82 #define _Jv_platform_path_separator ((jchar) ':')
  83
  84 // List of names for `JNI_OnLoad'.
  85 #define _Jv_platform_onload_names { "JNI_OnLoad", NULL }
  86
  87 // Type of libffi ABI used by JNICALL methods.  NOTE: This must agree
  88 // with the JNICALL definition in jni.h
  89 #define _Jv_platform_ffi_abi FFI_DEFAULT_ABI
  90
  91 #ifndef DISABLE_JAVA_NET
  92 #include <java/net/InetAddress.h>
  93 #endif
  94
  95 extern int _Jv_select (int n, fd_set *, fd_set *, fd_set *, struct timeval *);
  96 extern jlong _Jv_platform_gettimeofday ();
  97 extern jlong _Jv_platform_nanotime ();
  98 extern void _Jv_platform_initialize (void);
  99 extern void _Jv_platform_initProperties (java::util::Properties*);
 100
 101 #ifdef JV_HASH_SYNCHRONIZATION
 102 #ifndef HAVE_USLEEP_DECL
 103 extern "C" int usleep (useconds_t useconds);
 104 #endif /* not HAVE_USLEEP_DECL */
 105
 106 inline void
 107 _Jv_platform_usleep (unsigned long usecs)
 108 {
 109   usleep (usecs);
 110 }
 111 #endif /* JV_HASH_SYNCHRONIZATION */
 112
 113 #ifndef DISABLE_JAVA_NET
 114
 115 #ifndef HAVE_SOCKLEN_T
 116 #define socklen_t int
 117 #endif
 118
 119 static inline int
 120 _Jv_socket (int domain, int type, int protocol)
 121 {
 122   return ::socket (domain, type, protocol);
 123 }
 124
 125 #undef socket
 126
 127 inline int
 128 _Jv_connect (jint fd, sockaddr *ptr, int len)
 129 {
 130    return ::connect (fd, ptr, len);
 131 }
 132
 133 #undef connect
 134
 135 inline int
 136 _Jv_close (jint fd)
 137 {
 138   return ::close (fd);
 139 }
 140
 141 #undef close
 142
 143 // Avoid macro definitions of bind from system headers, e.g. on
 144 // Solaris 7 with _XOPEN_SOURCE.  FIXME
 145 inline int
 146 _Jv_bind (int fd, struct sockaddr *addr, int addrlen)
 147 {
 148   return ::bind (fd, addr, addrlen);
 149 }
 150
 151 #undef bind
 152
 153 inline int
 154 _Jv_listen (int fd, int backlog)
 155 {
 156   return ::listen (fd, backlog);
 157 }
 158
 159 #undef listen
 160
 161 inline int
 162 _Jv_write(int s, void *buf, int len)
 163 {
 164   return ::write (s, buf, len);
 165 }
 166
 167 #undef write
 168
 169 inline int
 170 _Jv_read(int s, void *buf, int len)
 171 {
 172   return ::read (s, buf, len);
 173 }
 174
 175 #undef read
 176
 177 #endif /* DISABLE_JAVA_NET */
 178
 179 // Wraps ::pipe
 180 static inline int
 181 _Jv_pipe (int filedes[2])
 182 {
 183   return ::pipe (filedes);
 184 }
 185
 186 // Forward declaration.  See java-stack.h for definition.
 187 struct _Jv_AddrInfo;
 188
 189 // Given an address, determine the executable or shared object that defines
 190 // it and the nearest named symbol.
 191 extern int _Jv_platform_dladdr (void *addr, _Jv_AddrInfo *info);
 192
 193 #endif /* __JV_POSIX_H__ */