#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

#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

#if ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
#define WANT_BUILTIN_BSWAP
#else
#define bswap_32(x) ((((x) << 24) & 0xff000000u) | (((x) << 8) & 0x00ff0000u) \
                   | (((x) >> 8) & 0x0000ff00u) | (((x) >> 24) & 0x000000ffu))
#endif

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

static inline uint32_t be32dec(const void *pp)
{
	const uint8_t *p = (uint8_t const *)pp;
	return ((uint32_t)(p[3]) + ((uint32_t)(p[2]) << 8) +
	    ((uint32_t)(p[1]) << 16) + ((uint32_t)(p[0]) << 24));
}

static inline void be32enc(void *pp, uint32_t x)
{
	uint8_t *p = (uint8_t *)pp;
	p[3] = x & 0xff;
	p[2] = (x >> 8) & 0xff;
	p[1] = (x >> 16) & 0xff;
	p[0] = (x >> 24) & 0xff;
}

static inline uint32_t le32dec(const void *pp)
{
	const uint8_t *p = (uint8_t const *)pp;
	return ((uint32_t)(p[0]) + ((uint32_t)(p[1]) << 8) +
	    ((uint32_t)(p[2]) << 16) + ((uint32_t)(p[3]) << 24));
}

static inline void le32enc(void *pp, uint32_t x)
{
	uint8_t *p = (uint8_t *)pp;
	p[0] = x & 0xff;
	p[1] = (x >> 8) & 0xff;
	p[2] = (x >> 16) & 0xff;
	p[3] = (x >> 24) & 0xff;
}

void sha256_init(uint32_t *state);
void sha256_transform(uint32_t *state, const uint32_t *block, int swap);

#if defined(__x86_64__)
#define HAVE_SHA256_4WAY 1
int sha256_use_4way();
void sha256_init_4way(uint32_t *state);
void sha256_transform_4way(uint32_t *state, const uint32_t *block, int swap);
#endif

extern int scanhash_sha256d(int thr_id, uint32_t *pdata,
	const uint32_t *ptarget, uint32_t max_nonce, unsigned long *hashes_done);

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

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

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

extern bool opt_debug;
extern bool opt_protocol;
extern int opt_timeout;
extern bool want_longpoll;
extern bool have_longpoll;
extern char *opt_proxy;
extern long opt_proxy_type;
extern bool use_syslog;
extern pthread_mutex_t time_lock;
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 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 int timeval_subtract(struct timeval *result, struct timeval *x,
	struct timeval *y);
extern bool fulltest(const uint32_t *hash, const uint32_t *target);

struct thread_q;

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__ */