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common.h
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common.h
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#ifndef _COMMON_H_
#define _COMMON_H_
#include <limits.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
/* There are some differeces between Linux and Windows.
* For convenience, we defined something here to unify interfaces,
* but it seems to be not very good. */
#ifdef WIN32 /* For Windows below. */
#include <stdlib.h>
#include <winsock2.h> /* fd_set, struct sockaddr_in, */
#include <windows.h> /* For many things */
#include <wininet.h> /* Some internet API, include InternetOpen(), InternetOpenUrl(), etc. */
#include <Shlwapi.h> /* PathMatchSpec() */
#include <ws2tcpip.h> /* struct sockaddr_in6 */
/* In Linux, the last prarmeter of 'send' is mostly MSG_NOSIGNAL(0x4000) (defined in linux headers),
* but in Windows, no this macro. And this prarmeter is zero, mostly.
* So we define this macro for Windows.
*/
typedef int socklen_t;
/* In Windows, the indetifer of a thread is just a 'HANDLE'. */
typedef HANDLE ThreadHandle;
/* And Mutex */
typedef HANDLE MutexHandle;
/* Files */
typedef HANDLE FileHandle;
#define INVALID_FILE ((FileHandle)NULL)
typedef HANDLE MappingHandle;
#define INVALID_MAP ((MappingHandle)NULL)
#define INVALID_MAPPING_FILE (NULL)
/* TCP_TIME_OUT, used as a return value */
#define TCP_TIME_OUT WSAETIMEDOUT
#define GET_LAST_ERROR() (WSAGetLastError())
#define SET_LAST_ERROR(i) (WSASetLastError(i))
/* Close a socket */
#define CLOSE_SOCKET(s) (closesocket(s))
/* Threading */
#define CREATE_THREAD(func_ptr, para_ptr, result_holder) (result_holder) = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)(func_ptr), (para_ptr), 0, NULL);
#define EXIT_THREAD(r) return (r)
#define DETACH_THREAD(t) CloseHandle(t)
/* Mutex */
#define CREATE_MUTEX(m) ((m) = CreateMutex(NULL, FALSE, NULL))
#define GET_MUTEX(m) (WaitForSingleObject((m), INFINITE))
#define GET_MUTEX_TRY(m) (WaitForSingleObject((m), 0))
#define RELEASE_MUTEX(m) (ReleaseMutex(m))
#define DESTROY_MUTEX(m) (CloseHandle(m))
#define GET_MUTEX_FAILED WAIT_TIMEOUT /* Used as return value */
/* CRITICAL_SECTION */
#define CRITICAL_SECTION_INIT(c, spin_count) (InitializeCriticalSectionAndSpinCount(&(c), (spin_count)))
#define ENTER_CRITICAL_SECTION(c) (EnterCriticalSection(&(c)))
#define ENTER_CRITICAL_SECTION_TRY(c) (TryEnterCriticalSection(&(c)))
#define LEAVE_CRITICAL_SECTION(c) (LeaveCriticalSection(&(c)))
#define DELETE_CRITICAL_SECTION(c) (DeleteCriticalSection(&(c)))
/* File and mapping handles*/
#define OPEN_FILE(file) CreateFile((file), GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL)
#define CREATE_FILE_MAPPING(handle, size) CreateFileMapping((handle), NULL, PAGE_READWRITE, 0, size, NULL);
#define MPA_FILE(handle, size) MapViewOfFile((handle), FILE_MAP_WRITE, 0, 0, 0)
#define UNMAP_FILE(start, size) UnmapViewOfFile(start)
#define DESTROY_MAPPING(handle) CloseHandle(handle)
#define CLOSE_FILE(handle) CloseHandle(handle)
#define PATH_SLASH_CH '\\'
#define PATH_SLASH_STR "\\"
/* Fill Address */
#define FILL_ADDR4(addr_struct, family, address_string, port) (addr_struct).sin_family = (family); \
(addr_struct).sin_addr.S_un.S_addr = inet_addr(address_string); \
(addr_struct).sin_port = htons(port);
/* Suspend current thread for some milliseconds */
#define SLEEP(i) (Sleep(i))
#define GET_TEMP_DIR() getenv("TEMP")
#define GET_THREAD_ID() ((int)GetCurrentThreadId())
/* Wildcard match function */
#define WILDCARD_MATCH(p, s) PathMatchSpec((s), (p))
#define WILDCARD_MATCHED TRUE /* Used as return value */
#define CONNECT_FUNCTION_BLOCKED WSAEWOULDBLOCK
typedef short sa_family_t;
#else /* For Linux below */
#include <netinet/in.h> /* For struct 'sockaddr_in' */
/* For function 'socket', 'bind', 'connect', 'send', 'recv',
* 'sendto', 'recvfrom', 'setsockopt', 'shutdown'. */
#include <sys/socket.h>
#include <unistd.h> /* For function 'close' , 'sleep' */
#include <errno.h> /* For extern variable 'errno'. */
#include <arpa/inet.h> /* For function 'inet_addr'. */
#include <pthread.h> /* Multithread support. */
#include <sys/types.h> /* struct stat */
#include <sys/stat.h> /* stat() */
#include <sys/mman.h> /* mmap */
#include <fcntl.h>
#ifdef HAVE_SYS_SYSCALL_H
#include <sys/syscall.h> /* syscall */
#endif /* HAVE_SYS_SYSCALL_H */
#include <pwd.h> /* struct passwd */
#include <fnmatch.h> /* fnmatch() */
/* In Linux, the type of socket is 'int'. */
typedef int SOCKET;
/* We use pthread to implement multi threads */
/* The indetifer of pthread is 'pthread_t'. */
typedef pthread_t ThreadHandle;
/* And mutex */
typedef pthread_mutex_t MutexHandle;
/* spin lock */
#ifdef HAVE_PTHREAD_SPIN_INIT
typedef pthread_spinlock_t SpinHandle;
#else
typedef pthread_mutex_t SpinHandle;
#endif
/* There are so many HANDLEs are just ints in Linux. */
typedef int FileHandle; /* The type of return value of open() */
#define INVALID_FILE ((FileHandle)(-1))
typedef int MappingHandle;
#define INVALID_MAP ((MappingHandle)(-1))
#define INVALID_MAPPING_FILE ((void *)(-1))
/* TCP_TIME_OUT, used as a return value */
#define TCP_TIME_OUT EAGAIN
#define GET_LAST_ERROR() errno
#define SET_LAST_ERROR(i) (errno = (i))
/* These are defined in 'windows.h'. */
#define INVALID_SOCKET ((SOCKET)(~0))
#define SOCKET_ERROR (-1)
/* Close a socket */
#define CLOSE_SOCKET(s) (close(s))
/* Boolean */
#define BOOL int
#define FALSE 0
#define TRUE (!0)
#ifndef SO_DONTLINGER
#define SO_DONTLINGER ((unsigned int) (~SO_LINGER))
#endif
/* pthread */
#define CREATE_THREAD(func_ptr, para_ptr, return_value) (pthread_create(&return_value, NULL, (void *(*)())(func_ptr), (para_ptr)))
#define EXIT_THREAD(r) pthread_exit(r)
#define DETACH_THREAD(t) pthread_detach(t)
/* mutex */
#define CREATE_MUTEX(m) (pthread_mutex_init(&(m), NULL))
#define GET_MUTEX(m) (pthread_mutex_lock(&(m)))
#define GET_MUTEX_TRY(m) (pthread_mutex_trylock(&(m)))
#define RELEASE_MUTEX(m) (pthread_mutex_unlock(&(m)))
#define DESTROY_MUTEX(m) (pthread_mutex_destroy(&(m)))
#define GET_MUTEX_FAILED (!0)
/* spin lock */
#ifdef HAVE_PTHREAD_SPIN_INIT
#define CREATE_SPIN(s) (pthread_spin_init(&(s), PTHREAD_PROCESS_PRIVATE))
#define LOCK_SPIN(s) (pthread_spin_lock(&(s)))
#define LOCK_SPIN_TRY(s) (pthread_spin_trylock(&(s)))
#define UNLOCK_SPIN(s) (pthread_spin_unlock(&(s)))
#define DESTROY_SPIN(s) (pthread_spin_destroy(&(s)))
#else /*HAVE_PTHREAD_SPIN_INIT */
#define CREATE_SPIN(s) (pthread_mutex_init(&(s), NULL))
#define LOCK_SPIN(s) (pthread_mutex_lock(&(s)))
#define LOCK_SPIN_TRY(s) (pthread_mutex_trylock(&(s)))
#define UNLOCK_SPIN(s) (pthread_mutex_unlock(&(s)))
#define DESTROY_SPIN(s) (pthread_mutex_destroy(&(s)))
#endif /*HAVE_PTHREAD_SPIN_INIT */
/* File and Mapping */
/* In Linux, there is no a long process to map a file like Windows. */
#define OPEN_FILE(file) (open((file), O_RDWR | O_CREAT, S_IRWXU))
#define CREATE_FILE_MAPPING(handle, size) (lseek((handle), size, SEEK_SET), write((handle), "\0", 1), (handle))
#define MPA_FILE(handle, size) (mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, (handle), 0))
#define UNMAP_FILE(start, size) (munmap(start, size))
#define DESTROY_MAPPING(handle) /* Nothing */
#define CLOSE_FILE(handle) (close(handle))
#define PATH_SLASH_CH '/'
#define PATH_SLASH_STR "/"
#define FILL_ADDR4(addr_struct, family, address_string, port) (addr_struct).sin_family = (family); \
(addr_struct).sin_addr.s_addr = inet_addr(address_string); \
(addr_struct).sin_port = htons(port);
#define SLEEP(i) do \
{ \
int Count = 1000; \
do \
{ \
usleep(i); \
--Count; \
} while( Count > 0 ); \
} while( 0 )
/* As the name suggests */
#define GET_TEMP_DIR() "/tmp"
#ifdef HAVE_SYS_SYSCALL_H
#define GET_THREAD_ID() syscall(__NR_gettid)
#else /* HAVE_SYS_SYSCALL_H */
#define GET_THREAD_ID() (-1)
#endif /* HAVE_SYS_SYSCALL_H */
#define WILDCARD_MATCH(p, s) fnmatch((p), (s), FNM_NOESCAPE)
#define WILDCARD_MATCHED 0
#define CONNECT_FUNCTION_BLOCKED EINPROGRESS
#endif /* WIN32 */
#ifdef WIN32
typedef CRITICAL_SECTION EFFECTIVE_LOCK;
#define EFFECTIVE_LOCK_INIT(l) CRITICAL_SECTION_INIT((l), 1024)
#define EFFECTIVE_LOCK_GET(l) ENTER_CRITICAL_SECTION(l)
#define EFFECTIVE_LOCK_TRY_GET(l) ENTER_CRITICAL_SECTION_TRY(l)
#define EFFECTIVE_LOCK_RELEASE(l) LEAVE_CRITICAL_SECTION(l)
#define EFFECTIVE_LOCK_DESTROY(l) DELETE_CRITICAL_SECTION(l)
#else /* WIN32 */
typedef SpinHandle EFFECTIVE_LOCK;
#define EFFECTIVE_LOCK_INIT(l) CREATE_SPIN(l)
#define EFFECTIVE_LOCK_GET(l) LOCK_SPIN(l)
#define EFFECTIVE_LOCK_TRY_GET(l) LOCK_SPIN_TRY(l)
#define EFFECTIVE_LOCK_RELEASE(l) UNLOCK_SPIN(l)
#define EFFECTIVE_LOCK_DESTROY(l) DESTROY_SPIN(l)
#endif /* WIN32 */
#ifdef WIN32
#define GetFileDirectory(out) (GetModulePath(out, sizeof(out)))
#else /* WIN32 */
#define GetFileDirectory(out) (GetConfigDirectory(out))
#endif /* WIN32 */
#define INVALID_THREAD ((ThreadHandle)NULL)
#ifndef MSG_NOSIGNAL
#define MSG_NOSIGNAL 0
#endif /* MSG_NOSIGNAL */
/* Unified interfaces end */
/* something is STILL on some state */
#define __STILL
#ifdef HAVE_STDINT_H
#include <stdint.h>
#else
#if (INT_MAX == 2147483647)
#define int32_t int
#define uint32_t unsigned int
#define UINT32_T_MAX 0xFFFFFFFF
#endif
#if (SHRT_MAX == 32767)
#define int16_t short
#define uint16_t unsigned short
#endif
#endif
#ifndef HAVE_IN_PORT_T
typedef uint16_t in_port_t;
#endif
/* Parameters' tag */
#ifndef __in
#define __in
#endif /* __in */
#ifndef __in_opt
#define __in_opt
#endif /* __in_opt */
#ifndef __out
#define __out
#endif /* __out */
#ifndef __out_opt
#define __out_opt
#endif /* __out_opt */
#ifndef __inout
#define __inout
#endif /* __inout */
#ifndef __inout_opt
#define __inout_opt
#endif /* __inout_opt */
#define LENGTH_OF_IPV6_ADDRESS_ASCII 40
typedef union _CompatibleAddr{
struct sockaddr_in Addr4;
struct sockaddr_in6 Addr6;
} CompatibleAddr;
typedef struct _Address_Type{
/* Union of address of IPv4 and IPv6 */
union {
struct sockaddr_in Addr4;
struct sockaddr_in6 Addr6;
} Addr;
/* Although there is a `family' field in both `struct sockaddr_in' and
* `struct sockaddr_in6', we also add it out here.
*/
sa_family_t family;
} Address_Type;
#endif /* _COMMON_H_ */