src/shims/linux_stubs.h

   1 /*
   2  * This source file is part of the Swift.org open source project
   3  *
   4  * Copyright (c) 2015 Apple Inc. and the Swift project authors
   5  *
   6  * Licensed under Apache License v2.0 with Runtime Library Exception
   7  *
   8  * See http://swift.org/LICENSE.txt for license information
   9  * See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
  10  *
  11  */
  12
  13 // forward declarations for functions we are stubbing out
  14 // in the intial linux port.
  15
  16 #ifndef __DISPATCH__STUBS__INTERNAL
  17 #define __DISPATCH__STUBS__INTERNAL
  18
  19 // marker for hacks we have made to make progress
  20 #define __LINUX_PORT_HDD__ 1
  21
  22 /*
  23  * Stub out defines for some mach types and related macros
  24  */
  25
  26 typedef uint32_t mach_port_t;
  27
  28 #define  MACH_PORT_NULL (0)
  29 #define  MACH_PORT_DEAD (-1)
  30
  31 typedef uint32_t mach_error_t;
  32
  33 typedef uint32_t mach_vm_size_t;
  34
  35 typedef uint32_t mach_msg_return_t;
  36
  37 typedef uint32_t mach_msg_bits_t;
  38
  39 typedef uintptr_t mach_vm_address_t;
  40
  41 typedef uint32_t dispatch_mach_msg_t;
  42
  43 typedef uint32_t dispatch_mach_t;
  44
  45 typedef uint32_t dispatch_mach_reason_t;
  46
  47 typedef uint32_t voucher_activity_mode_t;
  48
  49 typedef uint32_t voucher_activity_trace_id_t;
  50
  51 typedef uint32_t voucher_activity_id_t;
  52
  53 typedef uint32_t _voucher_activity_buffer_hook_t;;
  54
  55 typedef uint32_t voucher_activity_flag_t;
  56
  57 typedef struct { } mach_msg_header_t;
  58
  59
  60 typedef void (*dispatch_mach_handler_function_t)(void*, dispatch_mach_reason_t,
  61                                                  dispatch_mach_msg_t, mach_error_t);
  62
  63 typedef void (*dispatch_mach_msg_destructor_t)(void*);
  64
  65 // Print a warning when an unported code path executes.
  66 #define LINUX_PORT_ERROR()  do { printf("LINUX_PORT_ERROR_CALLED %s:%d: %s\n",__FILE__,__LINE__,__FUNCTION__); } while (0)
  67
  68 /*
  69  * Stub out defines for other missing types
  70  */
  71
  72 #if __linux__
  73 // we fall back to use kevent
  74 #define kevent64_s kevent
  75 #define kevent64(kq,cl,nc,el,ne,f,to)  kevent(kq,cl,nc,el,ne,to)
  76 #endif
  77
  78 // SIZE_T_MAX should not be hardcoded like this here.
  79 #define SIZE_T_MAX (0x7fffffff)
  80
  81 // Define to 0 the NOTE_ values that are not present on Linux.
  82 // Revisit this...would it be better to ifdef out the uses instead??
  83
  84 // The following values are passed as part of the EVFILT_TIMER requests
  85
  86 #define IGNORE_KEVENT64_EXT   /* will force the kevent64_s.ext[] to not be used -> leeway ignored */
  87
  88 #define NOTE_SECONDS    0x01
  89 #define NOTE_USECONDS   0x02
  90 #define NOTE_NSECONDS   0x04
  91 #define NOTE_ABSOLUTE   0x08
  92 #define NOTE_CRITICAL   0x10
  93 #define NOTE_BACKGROUND 0x20
  94 #define NOTE_LEEWAY     0x40
  95
  96 // need to catch the following usage if it happens ..
  97 // we simply return '0' as a value probably not correct
  98
  99 #define NOTE_VM_PRESSURE ({LINUX_PORT_ERROR(); 0;})
 100
 101 #endif