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Calculate midstate in separate function and remove likely/unlikely macros since they're dependent on pools, not code design.

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This commit is contained in:
Con Kolivas 2012-07-14 09:45:55 +10:00
parent 8230ab0549
commit 41daf99537
1 changed files with 25 additions and 20 deletions
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45
cgminer.c
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@ -1230,6 +1230,27 @@ static bool jobj_binary(const json_t *obj, const char *key,
return true; return true;
} }
static void calc_midstate(struct work *work)
{
union {
unsigned char c[64];
uint32_t i[16];
} data;
int swapcounter;
for (swapcounter = 0; swapcounter < 16; swapcounter++)
data.i[swapcounter] = swab32(((uint32_t*) (work->data))[swapcounter]);
sha2_context ctx;
sha2_starts( &ctx, 0 );
sha2_update( &ctx, data.c, 64 );
memcpy(work->midstate, ctx.state, sizeof(work->midstate));
#if defined(__BIG_ENDIAN__) || defined(MIPSEB)
int i;
for (i = 0; i < 8; i++)
(((uint32_t*) (work->midstate))[i]) = swab32(((uint32_t*) (work->midstate))[i]);
#endif
}
static bool work_decode(const json_t *val, struct work *work) static bool work_decode(const json_t *val, struct work *work)
{ {
if (unlikely(!jobj_binary(val, "data", work->data, sizeof(work->data), true))) { if (unlikely(!jobj_binary(val, "data", work->data, sizeof(work->data), true))) {
@ -1237,29 +1258,13 @@ static bool work_decode(const json_t *val, struct work *work)
goto err_out; goto err_out;
} }
if (likely(!jobj_binary(val, "midstate", if (!jobj_binary(val, "midstate", work->midstate, sizeof(work->midstate), false)) {
work->midstate, sizeof(work->midstate), false))) {
applog(LOG_DEBUG, "Calculating midstate locally");
// Calculate it ourselves // Calculate it ourselves
union { applog(LOG_DEBUG, "Calculating midstate locally");
unsigned char c[64]; calc_midstate(work);
uint32_t i[16];
} data;
int swapcounter;
for (swapcounter = 0; swapcounter < 16; swapcounter++)
data.i[swapcounter] = swab32(((uint32_t*) (work->data))[swapcounter]);
sha2_context ctx;
sha2_starts( &ctx, 0 );
sha2_update( &ctx, data.c, 64 );
memcpy(work->midstate, ctx.state, sizeof(work->midstate));
#if defined(__BIG_ENDIAN__) || defined(MIPSEB)
int i;
for (i = 0; i < 8; i++)
(((uint32_t*) (work->midstate))[i]) = swab32(((uint32_t*) (work->midstate))[i]);
#endif
} }
if (likely(!jobj_binary(val, "hash1", work->hash1, sizeof(work->hash1), false))) { if (!jobj_binary(val, "hash1", work->hash1, sizeof(work->hash1), false)) {
// Always the same anyway // Always the same anyway
memcpy(work->hash1, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x80\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0", 64); memcpy(work->hash1, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x80\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0", 64);
} }