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construct/include/rb/system.h
2016-07-24 21:15:47 -07:00

373 lines
8 KiB
C

#ifndef _RB_SYSTEM_H
#define _RB_SYSTEM_H 1
#ifdef __cplusplus
extern "C" {
#endif
#ifdef HAVE_IPV6
#define RB_IPV6 1
#endif
#ifdef HAVE_STDBOOL_H
#include <stdbool.h>
#else
#ifndef HAVE__BOOL
#ifdef __cplusplus
typedef bool _Bool;
#else
#define _Bool signed char
#endif
#endif
#define bool _Bool
#define false 0
#define true 1
#define __bool_true_false_are_defined 1
#endif
#ifdef __GNUC__
#undef alloca
#define alloca __builtin_alloca
#else
# ifdef _MSC_VER
# include <malloc.h>
# define alloca _alloca
# else
# if RB_HAVE_ALLOCA_H
# include <alloca.h>
# else
# ifdef _AIX
#pragma alloca
# else
# ifndef alloca /* predefined by HP cc +Olibcalls */
char *alloca();
# endif
# endif
# endif
# endif
#endif /* __GNUC__ */
#ifdef __GNUC__
/*
* This ensures that __attribute__((deprecated)) is not used in for example
* sun CC, since it's a GNU-specific extension. -nenolod
*/
#ifdef __GNUC__
#define IRC_DEPRECATED __attribute__((deprecated))
#else
#define IRC_DEPRECATED
#endif
#ifdef rb_likely
#undef rb_likely
#endif
#ifdef rb_unlikely
#undef rb_unlikely
#endif
#if __GNUC__ == 2 && __GNUC_MINOR__ < 96
# define __builtin_expect(x, expected_value) (x)
#endif
#define rb_likely(x) __builtin_expect(!!(x), 1)
#define rb_unlikely(x) __builtin_expect(!!(x), 0)
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
#else /* !__GNUC__ */
#define UNUSED(x) x
#ifdef rb_likely
#undef rb_likely
#endif
#ifdef rb_unlikely
#undef rb_unlikely
#endif
#define rb_likely(x) (x)
#define rb_unlikely(x) (x)
#endif
#if defined(__INTEL_COMPILER) || defined(__GNUC__)
#ifdef __unused
#undef __unused
#endif
#ifdef __printf
#undef __printf
#endif
#ifdef __noreturn
#undef __noreturn
#endif
#define __unused __attribute__((__unused__))
#define __printf(x) __attribute__((__format__ (__printf__, x, x + 1)))
#define __noreturn __attribute__((__noreturn__))
#else
#ifndef __unused
#define __unused
#endif
#ifndef __printf
#define __printf
#endif
#ifndef __noreturn
#define __noreturn
#endif
#endif
#ifdef _WIN32
#define rb_get_errno() do { errno = WSAGetLastError(); WSASetLastError(errno); } while(0)
typedef SOCKET rb_platform_fd_t;
#define RB_PATH_SEPARATOR '\\'
#else
#define rb_get_errno()
typedef int rb_platform_fd_t;
#define RB_PATH_SEPARATOR '/'
#endif
#ifdef _WIN32
#include <process.h>
#ifndef PATH_MAX
#define PATH_MAX 128
#endif
#ifdef strerror
#undef strerror
#endif
#define strerror(x) rb_strerror(x)
char *rb_strerror(int error);
#undef ENOBUFS
#define ENOBUFS WSAENOBUFS
#undef EINPROGRESS
#define EINPROGRESS WSAEINPROGRESS
#undef EWOULDBLOCK
#define EWOULDBLOCK WSAEWOULDBLOCK
#undef EMSGSIZE
#define EMSGSIZE WSAEMSGSIZE
#undef EALREADY
#define EALREADY WSAEALREADY
#undef EISCONN
#define EISCONN WSAEISCONN
#undef EADDRINUSE
#define EADDRINUSE WSAEADDRINUSE
#undef EAFNOSUPPORT
#define EAFNOSUPPORT WSAEAFNOSUPPORT
#define pipe(x) _pipe(x, 1024, O_BINARY)
#define ioctl(x,y,z) ioctlsocket(x,y, (unsigned long *)z)
#define WNOHANG 1
#ifndef SIGKILL
#define SIGKILL SIGTERM
#endif
#endif /* _WIN32 */
#ifndef HOSTIPLEN
#define HOSTIPLEN 53
#endif
#ifdef __GNUC__
#define slrb_assert(expr) do \
{ \
if(rb_unlikely(!(expr))) \
{ \
rb_lib_log("file: %s line: %d (%s): Assertion failed: (%s)", \
__FILE__, __LINE__, __PRETTY_FUNCTION__, #expr); \
rb_backtrace_log_symbols(); \
} \
} \
while(0)
#else
#define slrb_assert(expr) do \
if(rb_unlikely(!(expr))) { \
rb_lib_log( \
"file: %s line: %d: Assertion failed: (%s)", \
__FILE__, __LINE__, #expr); \
} \
while(0)
#endif
#ifdef SOFT_ASSERT
#define lrb_assert(expr) slrb_assert(expr)
#else
#define lrb_assert(expr) do { slrb_assert(expr); assert(expr); } while(0)
#endif
#ifdef RB_SOCKADDR_HAS_SA_LEN
#define ss_len sa_len
#endif
#define GET_SS_FAMILY(x) (((const struct sockaddr *)(x))->sa_family)
#define SET_SS_FAMILY(x, y) ((((struct sockaddr *)(x))->sa_family) = y)
#ifdef RB_SOCKADDR_HAS_SA_LEN
#define SET_SS_LEN(x, y) do { \
struct sockaddr *_storage; \
_storage = ((struct sockaddr *)(x));\
_storage->sa_len = (y); \
} while (0)
#define GET_SS_LEN(x) (((struct sockaddr *)(x))->sa_len)
#else /* !RB_SOCKADDR_HAS_SA_LEN */
#define SET_SS_LEN(x, y) (((struct sockaddr *)(x))->sa_family = ((struct sockaddr *)(x))->sa_family)
#ifdef RB_IPV6
#define GET_SS_LEN(x) (((struct sockaddr *)(x))->sa_family == AF_INET ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6))
#else
#define GET_SS_LEN(x) (((struct sockaddr *)(x))->sa_family == AF_INET ? sizeof(struct sockaddr_in) : 0)
#endif
#endif
#ifdef RB_IPV6
#define GET_SS_PORT(x) (((struct sockaddr *)(x))->sa_family == AF_INET ? ((struct sockaddr_in *)(x))->sin_port : ((struct sockaddr_in6 *)(x))->sin6_port)
#define SET_SS_PORT(x, y) do { \
if(((struct sockaddr *)(x))->sa_family == AF_INET) { \
((struct sockaddr_in *)(x))->sin_port = (y); \
} else { \
((struct sockaddr_in6 *)(x))->sin6_port = (y); \
} \
} while (0)
#else
#define GET_SS_PORT(x) (((struct sockaddr_in *)(x))->sin_port)
#define SET_SS_PORT(x, y) (((struct sockaddr_in *)(x))->sin_port = y)
#endif
#ifndef INADDRSZ
#define INADDRSZ 4
#endif
#ifndef IN6ADDRSZ
#define IN6ADDRSZ 16
#endif
#ifndef INT16SZ
#define INT16SZ 2
#endif
#ifndef UINT16_MAX
#define UINT16_MAX (65535U)
#endif
#ifndef UINT32_MAX
#define UINT32_MAX (4294967295U)
#endif
/* For those unfamiliar with GNU format attributes, a is the 1 based
* argument number of the format string, and b is the 1 based argument
* number of the variadic ... */
#ifdef __GNUC__
#define AFP(a,b) __attribute__((format (printf, a, b)))
#else
#define AFP(a,b)
#endif
#ifdef HAVE_STRUCT_SOCKADDR_STORAGE
#define rb_sockaddr_storage sockaddr_storage
#else
struct rb_sockaddr_storage { uint8_t _padding[128]; };
#endif
#define rb_hash_fd(x) ((x ^ (x >> RB_FD_HASH_BITS) ^ (x >> (RB_FD_HASH_BITS * 2))) & RB_FD_HASH_MASK)
#ifdef HAVE_WRITEV
#ifndef UIO_MAXIOV
# if defined(__FreeBSD__) || defined(__APPLE__) || defined(__NetBSD__)
/* FreeBSD 4.7 defines it in sys/uio.h only if _KERNEL is specified */
# define RB_UIO_MAXIOV 1024
# elif defined(__sgi)
/* IRIX 6.5 has sysconf(_SC_IOV_MAX) which might return 512 or bigger */
# define RB_UIO_MAXIOV 512
# elif defined(__sun)
/* Solaris (and SunOS?) defines IOV_MAX instead */
# ifndef IOV_MAX
# define RB_UIO_MAXIOV 16
# else
# define RB_UIO_MAXIOV IOV_MAX
# endif
# elif defined(IOV_MAX)
# define RB_UIO_MAXIOV IOV_MAX
# else
# define RB_UIO_MAXIOV 16
# endif
#else
#define RB_UIO_MAXIOV UIO_MAXIOV
#endif
#else
#define RB_UIO_MAXIOV 16
#endif
#ifndef MAX
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#endif
#ifndef MIN
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif
#ifdef RB_IPV6
#ifndef AF_INET6
#error "AF_INET6 not defined"
#endif
#else /* #ifdef RB_IPV6 */
#ifndef AF_INET6
#define AF_INET6 AF_MAX /* Dummy AF_INET6 declaration */
#endif
#endif /* #ifdef RB_IPV6 */
#ifdef RB_IPV6
#define PATRICIA_BITS 128
#else
#define PATRICIA_BITS 32
#endif
#ifdef __cplusplus
#define RB_EXTERN_C extern "C"
#else
#define RB_EXTERN_C
#endif
#ifdef strdupa
#define LOCAL_COPY(s) strdupa(s)
#else
#if defined(__INTEL_COMPILER) || defined(__GNUC__)
#define LOCAL_COPY(s) __extension__({ char *_s = (char *)alloca(strlen(s) + 1); strcpy(_s, s); _s; })
#else
#define LOCAL_COPY(s) strcpy((char *)alloca(strlen(s) + 1), s)
#endif
#endif
#ifdef __cplusplus
} // extern "C"
#endif
#endif // _RB_SYSTEM_H