1 /******************************************************************************/ 2 #ifdef JEMALLOC_H_TYPES 3 4 /* Size of stack-allocated buffer passed to buferror(). */ 5 #define BUFERROR_BUF 64 6 7 /* 8 * Size of stack-allocated buffer used by malloc_{,v,vc}printf(). This must be 9 * large enough for all possible uses within jemalloc. 10 */ 11 #define MALLOC_PRINTF_BUFSIZE 4096 12 13 /* 14 * Wrap a cpp argument that contains commas such that it isn't broken up into 15 * multiple arguments. 16 */ 17 #define JEMALLOC_CONCAT(...) __VA_ARGS__ 18 19 /* 20 * Silence compiler warnings due to uninitialized values. This is used 21 * wherever the compiler fails to recognize that the variable is never used 22 * uninitialized. 23 */ 24 #ifdef JEMALLOC_CC_SILENCE 25 # define JEMALLOC_CC_SILENCE_INIT(v) = v 26 #else 27 # define JEMALLOC_CC_SILENCE_INIT(v) 28 #endif 29 30 /* 31 * Define a custom assert() in order to reduce the chances of deadlock during 32 * assertion failure. 33 */ 34 #ifndef assert 35 #define assert(e) do { \ 36 if (config_debug && !(e)) { \ 37 malloc_printf( \ 38 "<jemalloc>: %s:%d: Failed assertion: \"%s\"\n", \ 39 __FILE__, __LINE__, #e); \ 40 abort(); \ 41 } \ 42 } while (0) 43 #endif 44 45 /* Use to assert a particular configuration, e.g., cassert(config_debug). */ 46 #define cassert(c) do { \ 47 if ((c) == false) \ 48 assert(false); \ 49 } while (0) 50 51 #ifndef not_reached 52 #define not_reached() do { \ 53 if (config_debug) { \ 54 malloc_printf( \ 55 "<jemalloc>: %s:%d: Unreachable code reached\n", \ 56 __FILE__, __LINE__); \ 57 abort(); \ 58 } \ 59 } while (0) 60 #endif 61 62 #ifndef not_implemented 63 #define not_implemented() do { \ 64 if (config_debug) { \ 65 malloc_printf("<jemalloc>: %s:%d: Not implemented\n", \ 66 __FILE__, __LINE__); \ 67 abort(); \ 68 } \ 69 } while (0) 70 #endif 71 72 #define assert_not_implemented(e) do { \ 73 if (config_debug && !(e)) \ 74 not_implemented(); \ 75 } while (0) 76 77 #endif /* JEMALLOC_H_TYPES */ 78 /******************************************************************************/ 79 #ifdef JEMALLOC_H_STRUCTS 80 81 #endif /* JEMALLOC_H_STRUCTS */ 82 /******************************************************************************/ 83 #ifdef JEMALLOC_H_EXTERNS 84 85 int buferror(char *buf, size_t buflen); 86 uintmax_t malloc_strtoumax(const char *nptr, char **endptr, int base); 87 void malloc_write(const char *s); 88 89 /* 90 * malloc_vsnprintf() supports a subset of snprintf(3) that avoids floating 91 * point math. 92 */ 93 int malloc_vsnprintf(char *str, size_t size, const char *format, 94 va_list ap); 95 int malloc_snprintf(char *str, size_t size, const char *format, ...) 96 JEMALLOC_ATTR(format(printf, 3, 4)); 97 void malloc_vcprintf(void (*write_cb)(void *, const char *), void *cbopaque, 98 const char *format, va_list ap); 99 void malloc_cprintf(void (*write)(void *, const char *), void *cbopaque, 100 const char *format, ...) JEMALLOC_ATTR(format(printf, 3, 4)); 101 void malloc_printf(const char *format, ...) 102 JEMALLOC_ATTR(format(printf, 1, 2)); 103 104 #endif /* JEMALLOC_H_EXTERNS */ 105 /******************************************************************************/ 106 #ifdef JEMALLOC_H_INLINES 107 108 #ifndef JEMALLOC_ENABLE_INLINE 109 size_t pow2_ceil(size_t x); 110 void malloc_write(const char *s); 111 void set_errno(int errnum); 112 int get_errno(void); 113 #endif 114 115 #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_UTIL_C_)) 116 /* Compute the smallest power of 2 that is >= x. */ 117 JEMALLOC_INLINE size_t 118 pow2_ceil(size_t x) 119 { 120 121 x--; 122 x |= x >> 1; 123 x |= x >> 2; 124 x |= x >> 4; 125 x |= x >> 8; 126 x |= x >> 16; 127 #if (LG_SIZEOF_PTR == 3) 128 x |= x >> 32; 129 #endif 130 x++; 131 return (x); 132 } 133 134 /* Sets error code */ 135 JEMALLOC_INLINE void 136 set_errno(int errnum) 137 { 138 139 #ifdef _WIN32 140 SetLastError(errnum); 141 #else 142 errno = errnum; 143 #endif 144 } 145 146 /* Get last error code */ 147 JEMALLOC_INLINE int 148 get_errno(void) 149 { 150 151 #ifdef _WIN32 152 return (GetLastError()); 153 #else 154 return (errno); 155 #endif 156 } 157 #endif 158 159 #endif /* JEMALLOC_H_INLINES */ 160 /******************************************************************************/ 161