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pyfec: remove (optimize) unused code

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This commit is contained in:
Zooko O'Whielacronx 2007-01-26 20:10:28 -07:00
parent afa4d8a46f
commit 81a4d96533
2 changed files with 5 additions and 35 deletions
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33
pyfec/fec/fec.c
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@ -584,40 +584,17 @@ fec_encode(const fec_t* code, const gf*restrict const*restrict const src, gf*res
unsigned i, j;
unsigned char fecnum;
gf* p;
unsigned fecs_ix = 0; /* index into the fecs array */
for (i=0; i<num_share_ids; i++) {
fecnum=share_ids[i];
if (fecnum >= code->k) {
memset(fecs[fecs_ix], 0, sz);
p = &(code->enc_matrix[fecnum * code->k]);
for (j = 0; j < code->k; j++)
addmul (fecs[fecs_ix], src[j], p[j], sz);
fecs_ix++;
}
assert (fecnum >= code->k);
memset(fecs[i], 0, sz);
p = &(code->enc_matrix[fecnum * code->k]);
for (j = 0; j < code->k; j++)
addmul (fecs[i], src[j], p[j], sz);
}
}
#if 0
/* By turning the nested loop inside out, we might incur different cache usage and therefore go slower or faster. However in practice I'm not able to detect a difference, since >90% of the time is spent in my Python test script anyway. :-) */
void
fec_encode(const fec_t* code, const gf*restrict const*restrict const src, gf*restrict const*restrict const fecs, const unsigned char*restrict const share_ids, unsigned char num_share_ids, size_t sz) {
for (unsigned j=0; j < code->k; j++) {
unsigned fecs_ix = 0; /* index into the fecs array */
for (unsigned i=0; i<num_share_ids; i++) {
unsigned char fecnum=share_ids[i];
if (fecnum >= code->k) {
if (j == 0)
memset(fecs[fecs_ix], 0, sz);
gf* p = &(code->enc_matrix[fecnum * code->k]);
addmul (fecs[fecs_ix], src[j], p[j], sz);
fecs_ix++;
}
}
}
}
#endif
/**
* Build decode matrix into some memory space.
*

7
pyfec/fec/fec.h
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@ -64,13 +64,6 @@
* OF SUCH DAMAGE.
*/
/*
* If you get a error returned (negative value) from a fec_* function,
* look in here for the error message.
*/
extern char fec_error[];
typedef unsigned char gf;
typedef struct {