1 /* 2 * Copyright 2004-2010, Haiku, Inc. All Rights Reserved. 3 * Distributed under the terms of the MIT License. 4 * 5 * Author: 6 * Erik Jaesler (erik@cgsoftware.com) 7 */ 8 #ifndef _SUPPORT_DEFS_H 9 #define _SUPPORT_DEFS_H 10 11 12 #include <BeBuild.h> 13 #include <Errors.h> 14 15 #include <inttypes.h> 16 #include <sys/types.h> 17 18 19 /* fixed-size integer types */ 20 typedef __haiku_int8 int8; 21 typedef __haiku_uint8 uint8; 22 typedef __haiku_int16 int16; 23 typedef __haiku_uint16 uint16; 24 typedef __haiku_int32 int32; 25 typedef __haiku_uint32 uint32; 26 typedef __haiku_int64 int64; 27 typedef __haiku_uint64 uint64; 28 29 /* shorthand types */ 30 typedef volatile int8 vint8; 31 typedef volatile uint8 vuint8; 32 typedef volatile int16 vint16; 33 typedef volatile uint16 vuint16; 34 typedef volatile int32 vint32; 35 typedef volatile uint32 vuint32; 36 typedef volatile int64 vint64; 37 typedef volatile uint64 vuint64; 38 39 typedef volatile long vlong; 40 typedef volatile int vint; 41 typedef volatile short vshort; 42 typedef volatile char vchar; 43 44 typedef volatile unsigned long vulong; 45 typedef volatile unsigned int vuint; 46 typedef volatile unsigned short vushort; 47 typedef volatile unsigned char vuchar; 48 49 typedef unsigned char uchar; 50 typedef unsigned short unichar; 51 52 /* descriptive types */ 53 typedef int32 status_t; 54 typedef int64 bigtime_t; 55 typedef int64 nanotime_t; 56 typedef uint32 type_code; 57 typedef uint32 perform_code; 58 59 typedef __haiku_phys_addr_t phys_addr_t; 60 typedef phys_addr_t phys_size_t; 61 62 typedef __haiku_generic_addr_t generic_addr_t; 63 typedef generic_addr_t generic_size_t; 64 65 66 /* printf()/scanf() format strings for [u]int* types */ 67 #define B_PRId8 "d" 68 #define B_PRIi8 "i" 69 #define B_PRId16 "d" 70 #define B_PRIi16 "i" 71 #define B_PRId32 __HAIKU_PRI_PREFIX_32 "d" 72 #define B_PRIi32 __HAIKU_PRI_PREFIX_32 "i" 73 #define B_PRId64 __HAIKU_PRI_PREFIX_64 "d" 74 #define B_PRIi64 __HAIKU_PRI_PREFIX_64 "i" 75 #define B_PRIu8 "u" 76 #define B_PRIo8 "o" 77 #define B_PRIx8 "x" 78 #define B_PRIX8 "X" 79 #define B_PRIu16 "u" 80 #define B_PRIo16 "o" 81 #define B_PRIx16 "x" 82 #define B_PRIX16 "X" 83 #define B_PRIu32 __HAIKU_PRI_PREFIX_32 "u" 84 #define B_PRIo32 __HAIKU_PRI_PREFIX_32 "o" 85 #define B_PRIx32 __HAIKU_PRI_PREFIX_32 "x" 86 #define B_PRIX32 __HAIKU_PRI_PREFIX_32 "X" 87 #define B_PRIu64 __HAIKU_PRI_PREFIX_64 "u" 88 #define B_PRIo64 __HAIKU_PRI_PREFIX_64 "o" 89 #define B_PRIx64 __HAIKU_PRI_PREFIX_64 "x" 90 #define B_PRIX64 __HAIKU_PRI_PREFIX_64 "X" 91 92 #define B_SCNd8 "hhd" 93 #define B_SCNi8 "hhi" 94 #define B_SCNd16 "hd" 95 #define B_SCNi16 "hi" 96 #define B_SCNd32 __HAIKU_PRI_PREFIX_32 "d" 97 #define B_SCNi32 __HAIKU_PRI_PREFIX_32 "i" 98 #define B_SCNd64 __HAIKU_PRI_PREFIX_64 "d" 99 #define B_SCNi64 __HAIKU_PRI_PREFIX_64 "i" 100 #define B_SCNu8 "hhu" 101 #define B_SCNo8 "hho" 102 #define B_SCNx8 "hhx" 103 #define B_SCNu16 "hu" 104 #define B_SCNo16 "ho" 105 #define B_SCNx16 "hx" 106 #define B_SCNu32 __HAIKU_PRI_PREFIX_32 "u" 107 #define B_SCNo32 __HAIKU_PRI_PREFIX_32 "o" 108 #define B_SCNx32 __HAIKU_PRI_PREFIX_32 "x" 109 #define B_SCNu64 __HAIKU_PRI_PREFIX_64 "u" 110 #define B_SCNo64 __HAIKU_PRI_PREFIX_64 "o" 111 #define B_SCNx64 __HAIKU_PRI_PREFIX_64 "x" 112 113 /* printf() format strings for some standard types */ 114 /* size_t */ 115 #define B_PRIuSIZE __HAIKU_PRI_PREFIX_ADDR "u" 116 #define B_PRIoSIZE __HAIKU_PRI_PREFIX_ADDR "o" 117 #define B_PRIxSIZE __HAIKU_PRI_PREFIX_ADDR "x" 118 #define B_PRIXSIZE __HAIKU_PRI_PREFIX_ADDR "X" 119 /* ssize_t */ 120 #define B_PRIdSSIZE __HAIKU_PRI_PREFIX_ADDR "d" 121 #define B_PRIiSSIZE __HAIKU_PRI_PREFIX_ADDR "i" 122 /* addr_t */ 123 #define B_PRIuADDR __HAIKU_PRI_PREFIX_ADDR "u" 124 #define B_PRIoADDR __HAIKU_PRI_PREFIX_ADDR "o" 125 #define B_PRIxADDR __HAIKU_PRI_PREFIX_ADDR "x" 126 #define B_PRIXADDR __HAIKU_PRI_PREFIX_ADDR "X" 127 /* phys_addr_t */ 128 #define B_PRIuPHYSADDR __HAIKU_PRI_PREFIX_PHYS_ADDR "u" 129 #define B_PRIoPHYSADDR __HAIKU_PRI_PREFIX_PHYS_ADDR "o" 130 #define B_PRIxPHYSADDR __HAIKU_PRI_PREFIX_PHYS_ADDR "x" 131 #define B_PRIXPHYSADDR __HAIKU_PRI_PREFIX_PHYS_ADDR "X" 132 /* generic_addr_t */ 133 #define B_PRIuGENADDR __HAIKU_PRI_PREFIX_GENERIC_ADDR "u" 134 #define B_PRIoGENADDR __HAIKU_PRI_PREFIX_GENERIC_ADDR "o" 135 #define B_PRIxGENADDR __HAIKU_PRI_PREFIX_GENERIC_ADDR "x" 136 #define B_PRIXGENADDR __HAIKU_PRI_PREFIX_GENERIC_ADDR "X" 137 /* off_t */ 138 #define B_PRIdOFF B_PRId64 139 #define B_PRIiOFF B_PRIi64 140 /* dev_t */ 141 #define B_PRIdDEV B_PRId32 142 #define B_PRIiDEV B_PRIi32 143 /* ino_t */ 144 #define B_PRIdINO B_PRId64 145 #define B_PRIiINO B_PRIi64 146 /* time_t */ 147 #define B_PRIdTIME B_PRId32 148 #define B_PRIiTIME B_PRIi32 149 150 151 /* Printed width of a pointer with the %p format (minus 0x prefix). */ 152 #ifdef B_HAIKU_64_BIT 153 # define B_PRINTF_POINTER_WIDTH 16 154 #else 155 # define B_PRINTF_POINTER_WIDTH 8 156 #endif 157 158 159 /* Empty string ("") */ 160 #ifdef __cplusplus 161 extern const char *B_EMPTY_STRING; 162 #endif 163 164 165 /* min and max comparisons */ 166 #ifndef __cplusplus 167 # ifndef min 168 # define min(a,b) ((a)>(b)?(b):(a)) 169 # endif 170 # ifndef max 171 # define max(a,b) ((a)>(b)?(a):(b)) 172 # endif 173 #endif 174 175 /* min() and max() are functions in C++ */ 176 #define min_c(a,b) ((a)>(b)?(b):(a)) 177 #define max_c(a,b) ((a)>(b)?(a):(b)) 178 179 180 /* Grandfathering */ 181 #ifndef __cplusplus 182 # include <stdbool.h> 183 #endif 184 185 #ifndef NULL 186 # define NULL (0) 187 #endif 188 189 190 #ifdef __cplusplus 191 extern "C" { 192 #endif 193 194 /* Atomic functions; previous value is returned */ 195 extern int32 atomic_set(vint32 *value, int32 newValue); 196 extern int32 atomic_test_and_set(vint32 *value, int32 newValue, int32 testAgainst); 197 extern int32 atomic_add(vint32 *value, int32 addValue); 198 extern int32 atomic_and(vint32 *value, int32 andValue); 199 extern int32 atomic_or(vint32 *value, int32 orValue); 200 extern int32 atomic_get(vint32 *value); 201 202 extern int64 atomic_set64(vint64 *value, int64 newValue); 203 extern int64 atomic_test_and_set64(vint64 *value, int64 newValue, int64 testAgainst); 204 extern int64 atomic_add64(vint64 *value, int64 addValue); 205 extern int64 atomic_and64(vint64 *value, int64 andValue); 206 extern int64 atomic_or64(vint64 *value, int64 orValue); 207 extern int64 atomic_get64(vint64 *value); 208 209 /* Other stuff */ 210 extern void* get_stack_frame(void); 211 212 #ifdef __cplusplus 213 } 214 #endif 215 216 /* Obsolete or discouraged API */ 217 218 /* use 'true' and 'false' */ 219 #ifndef FALSE 220 # define FALSE 0 221 #endif 222 #ifndef TRUE 223 # define TRUE 1 224 #endif 225 226 227 /* Use the built-in atomic functions, if requested and available. */ 228 229 #if defined(B_USE_BUILTIN_ATOMIC_FUNCTIONS) && __GNUC__ >= 4 230 231 #define atomic_test_and_set(valuePointer, newValue, testAgainst) \ 232 __sync_val_compare_and_swap(valuePointer, testAgainst, newValue) 233 #define atomic_add(valuePointer, addValue) \ 234 __sync_fetch_and_add(valuePointer, addValue) 235 #define atomic_and(valuePointer, andValue) \ 236 __sync_fetch_and_and(valuePointer, andValue) 237 #define atomic_or(valuePointer, orValue) \ 238 __sync_fetch_and_or(valuePointer, orValue) 239 #define atomic_get(valuePointer) \ 240 __sync_fetch_and_or(valuePointer, 0) 241 // No equivalent to atomic_get(). We simulate it via atomic or. On most 242 // (all?) 32+ bit architectures aligned 32 bit reads will be atomic anyway, 243 // though. 244 245 // Note: No equivalent for atomic_set(). It could be simulated by a 246 // get + atomic test and set loop, but calling the atomic_set() implementation 247 // might be faster. 248 249 #endif // B_USE_BUILTIN_ATOMIC_FUNCTIONS && __GNUC__ >= 4 250 251 252 #endif /* _SUPPORT_DEFS_H */ 253