cpuminer/miner.h

#ifndef __MINER_H__
#define __MINER_H__

#include "cpuminer-config.h"

#include <stdbool.h>
#include <stdint.h>
#include <sys/time.h>
#include <pthread.h>
#include <jansson.h>
#include <curl/curl.h>

#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
#  include <stdlib.h>
# endif
#endif
#ifdef HAVE_ALLOCA_H
# include <alloca.h>
#elif defined __GNUC__
# define alloca __builtin_alloca
#elif defined _AIX
# define alloca __alloca
#elif defined _MSC_VER
# include <malloc.h>
# define alloca _alloca
#else
# ifndef HAVE_ALLOCA
#  ifdef  __cplusplus
extern "C"
#  endif
void *alloca (size_t);
# endif
#endif


#if ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
#define WANT_BUILTIN_BSWAP
#else
#if HAVE_BYTESWAP_H
#include <byteswap.h>
#elif defined(USE_SYS_ENDIAN_H)
#include <sys/endian.h>
#elif defined(__APPLE__)
#include <libkern/OSByteOrder.h>
#define bswap_16 OSSwapInt16
#define bswap_32 OSSwapInt32
#define bswap_64 OSSwapInt64
#else
#define	bswap_16(value)  \
 	((((value) & 0xff) << 8) | ((value) >> 8))

#define	bswap_32(value)	\
 	(((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \
 	(uint32_t)bswap_16((uint16_t)((value) >> 16)))
 
#define	bswap_64(value)	\
 	(((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) \
 	    << 32) | \
 	(uint64_t)bswap_32((uint32_t)((value) >> 32)))
#endif
#endif /* !defined(__GLXBYTEORDER_H__) */

#ifdef HAVE_SYSLOG_H
#include <syslog.h>
#else
enum {
	LOG_ERR,
	LOG_WARNING,
	LOG_INFO,
	LOG_DEBUG,
};
#endif

#undef unlikely
#undef likely
#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
#define unlikely(expr) (__builtin_expect(!!(expr), 0))
#define likely(expr) (__builtin_expect(!!(expr), 1))
#else
#define unlikely(expr) (expr)
#define likely(expr) (expr)
#endif

#ifndef ARRAY_SIZE
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
#endif

struct thr_info {
	int		id;
	pthread_t	pth;
	struct thread_q	*q;
};

static inline uint32_t swab32(uint32_t v)
{
#ifdef WANT_BUILTIN_BSWAP
	return __builtin_bswap32(v);
#else
	return bswap_32(v);
#endif
}

static inline void swap256(void *dest_p, const void *src_p)
{
	uint32_t *dest = dest_p;
	const uint32_t *src = src_p;

	dest[0] = src[7];
	dest[1] = src[6];
	dest[2] = src[5];
	dest[3] = src[4];
	dest[4] = src[3];
	dest[5] = src[2];
	dest[6] = src[1];
	dest[7] = src[0];
}

extern bool opt_debug;
extern bool opt_protocol;
extern const uint32_t sha256_init_state[];
extern json_t *json_rpc_call(CURL *curl, const char *url, const char *userpass,
			     const char *rpc_req, bool, bool, int *);
extern char *bin2hex(const unsigned char *p, size_t len);
extern bool hex2bin(unsigned char *p, const char *hexstr, size_t len);

extern unsigned char *scrypt_buffer_alloc();
extern int scanhash_scrypt(int, unsigned char *pdata, unsigned char *scratchbuf,
	const unsigned char *ptarget,
	uint32_t max_nonce, uint32_t *next_nonce, unsigned long *hashes_done);

extern int
timeval_subtract (struct timeval *result, struct timeval *x, struct timeval *y);

extern bool fulltest(const unsigned char *hash, const unsigned char *target);

extern int opt_scantime;
extern int opt_timeout;
extern bool want_longpoll;
extern bool have_longpoll;
struct thread_q;

struct work_restart {
	volatile unsigned long	restart;
	char			padding[128 - sizeof(unsigned long)];
};

extern pthread_mutex_t time_lock;
extern bool use_syslog;
extern struct thr_info *thr_info;
extern int longpoll_thr_id;
extern struct work_restart *work_restart;

extern void applog(int prio, const char *fmt, ...);
extern struct thread_q *tq_new(void);
extern void tq_free(struct thread_q *tq);
extern bool tq_push(struct thread_q *tq, void *data);
extern void *tq_pop(struct thread_q *tq, const struct timespec *abstime);
extern void tq_freeze(struct thread_q *tq);
extern void tq_thaw(struct thread_q *tq);

#endif /* __MINER_H__ */