thodg/cgminer/util.h

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• Hash : b59c3380
  Author :
  Date : 2013-06-06T13:08:00
  

  Implement cgminer specific cgsem semaphores to imitate unnamed semaphore behaviour on osx which does not support them.

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• util.h

• #ifndef __UTIL_H__
  #define __UTIL_H__
  
  #include <semaphore.h>
  
  #if defined(unix) || defined(__APPLE__)
  	#include <errno.h>
  	#include <sys/socket.h>
  	#include <netinet/in.h>
  	#include <arpa/inet.h>
  
  	#define SOCKETTYPE long
  	#define SOCKETFAIL(a) ((a) < 0)
  	#define INVSOCK -1
  	#define INVINETADDR -1
  	#define CLOSESOCKET close
  
  	#define SOCKERRMSG strerror(errno)
  	static inline bool sock_blocks(void)
  	{
  		return (errno == EAGAIN || errno == EWOULDBLOCK);
  	}
  #elif defined WIN32
  	#include <ws2tcpip.h>
  	#include <winsock2.h>
  
  	#define SOCKETTYPE SOCKET
  	#define SOCKETFAIL(a) ((int)(a) == SOCKET_ERROR)
  	#define INVSOCK INVALID_SOCKET
  	#define INVINETADDR INADDR_NONE
  	#define CLOSESOCKET closesocket
  
  	extern char *WSAErrorMsg(void);
  	#define SOCKERRMSG WSAErrorMsg()
  
  	static inline bool sock_blocks(void)
  	{
  		return (WSAGetLastError() == WSAEWOULDBLOCK);
  	}
  	#ifndef SHUT_RDWR
  	#define SHUT_RDWR SD_BOTH
  	#endif
  
  	#ifndef in_addr_t
  	#define in_addr_t uint32_t
  	#endif
  #endif
  
  #if JANSSON_MAJOR_VERSION >= 2
  #define JSON_LOADS(str, err_ptr) json_loads((str), 0, (err_ptr))
  #else
  #define JSON_LOADS(str, err_ptr) json_loads((str), (err_ptr))
  #endif
  
  /* cgminer specific unnamed semaphore implementations to cope with osx not
   * implementing them. */
  #ifdef __APPLE__
  struct cgsem {
  	int pipefd[2];
  };
  
  typedef struct cgsem cgsem_t;
  #else
  typedef sem_t cgsem_t;
  #endif
  
  struct thr_info;
  struct pool;
  enum dev_reason;
  struct cgpu_info;
  int thr_info_create(struct thr_info *thr, pthread_attr_t *attr, void *(*start) (void *), void *arg);
  void thr_info_freeze(struct thr_info *thr);
  void thr_info_cancel(struct thr_info *thr);
  void nmsleep(unsigned int msecs);
  void nusleep(unsigned int usecs);
  void cgtime(struct timeval *tv);
  void subtime(struct timeval *a, struct timeval *b);
  void addtime(struct timeval *a, struct timeval *b);
  bool time_more(struct timeval *a, struct timeval *b);
  bool time_less(struct timeval *a, struct timeval *b);
  void copy_time(struct timeval *dest, const struct timeval *src);
  double us_tdiff(struct timeval *end, struct timeval *start);
  double tdiff(struct timeval *end, struct timeval *start);
  bool stratum_send(struct pool *pool, char *s, ssize_t len);
  bool sock_full(struct pool *pool);
  char *recv_line(struct pool *pool);
  bool parse_method(struct pool *pool, char *s);
  bool extract_sockaddr(struct pool *pool, char *url);
  bool auth_stratum(struct pool *pool);
  bool initiate_stratum(struct pool *pool);
  bool restart_stratum(struct pool *pool);
  void suspend_stratum(struct pool *pool);
  void dev_error(struct cgpu_info *dev, enum dev_reason reason);
  void *realloc_strcat(char *ptr, char *s);
  void *str_text(char *ptr);
  void RenameThread(const char* name);
  void cgsem_init(cgsem_t *cgsem);
  void cgsem_post(cgsem_t *cgsem);
  void cgsem_wait(cgsem_t *cgsem);
  void cgsem_destroy(cgsem_t *cgsem);
  
  /* Align a size_t to 4 byte boundaries for fussy arches */
  static inline void align_len(size_t *len)
  {
  	if (*len % 4)
  		*len += 4 - (*len % 4);
  }
  
  #endif /* __UTIL_H__ */
  

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