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 /*
  20  * Stub out defines for some mach types and related macros
  21  */
  22
  23 typedef uint32_t mach_port_t;
  24
  25 #define  MACH_PORT_NULL (0)
  26 #define  MACH_PORT_DEAD (-1)
  27
  28 typedef uint32_t mach_error_t;
  29
  30 typedef uint32_t mach_vm_size_t;
  31
  32 typedef uint32_t mach_msg_return_t;
  33
  34 typedef uint32_t mach_msg_bits_t;
  35
  36 typedef uintptr_t mach_vm_address_t;
  37
  38 typedef uint32_t dispatch_mach_msg_t;
  39
  40 typedef uint32_t dispatch_mach_t;
  41
  42 typedef uint32_t dispatch_mach_reason_t;
  43
  44 typedef uint32_t voucher_activity_mode_t;
  45
  46 typedef uint32_t voucher_activity_trace_id_t;
  47
  48 typedef uint32_t voucher_activity_id_t;
  49
  50 typedef uint32_t voucher_activity_flag_t;
  51
  52 typedef struct { } mach_msg_header_t;
  53
  54
  55 typedef void (*dispatch_mach_handler_function_t)(void*, dispatch_mach_reason_t,
  56                                                  dispatch_mach_msg_t, mach_error_t);
  57
  58 typedef void (*dispatch_mach_msg_destructor_t)(void*);
  59
  60 // Print a warning when an unported code path executes.
  61 #define LINUX_PORT_ERROR()  do { printf("LINUX_PORT_ERROR_CALLED %s:%d: %s\n",__FILE__,__LINE__,__FUNCTION__); } while (0)
  62
  63 /*
  64  * Stub out defines for other missing types
  65  */
  66
  67 #if __linux__
  68 // we fall back to use kevent
  69 #define kevent64_s kevent
  70 #define kevent64(kq,cl,nc,el,ne,f,to)  kevent(kq,cl,nc,el,ne,to)
  71 #endif
  72
  73 // SIZE_T_MAX should not be hardcoded like this here.
  74 #define SIZE_T_MAX (0x7fffffff)
  75
  76 // Define to 0 the NOTE_ values that are not present on Linux.
  77 // Revisit this...would it be better to ifdef out the uses instead??
  78
  79 // The following values are passed as part of the EVFILT_TIMER requests
  80
  81 #define IGNORE_KEVENT64_EXT   /* will force the kevent64_s.ext[] to not be used -> leeway ignored */
  82
  83 #ifndef NOTE_SECONDS
  84 #define NOTE_SECONDS    0x01
  85 #define NOTE_USECONDS   0x02
  86 #define NOTE_NSECONDS   0x04
  87 #define NOTE_ABSOLUTE   0x08
  88 #define KEVENT_NSEC_NOT_SUPPORTED
  89 #endif
  90 #define NOTE_CRITICAL   0x10
  91 #define NOTE_BACKGROUND 0x20
  92 #define NOTE_LEEWAY     0x40
  93
  94 // need to catch the following usage if it happens ..
  95 // we simply return '0' as a value probably not correct
  96
  97 #define NOTE_VM_PRESSURE ({LINUX_PORT_ERROR(); 0;})
  98
  99 #endif