static void brigade_pread_simple(void **state)
{
sln_brigade_t *bb;
sln_bucket_t *e;
char buf[5];
size_t len = 0;
SLN_ERR(sln_brigade_create(&bb));
SLN_ERR(sln_bucket_create_empty(&e, 20));
SLN_BRIGADE_INSERT_TAIL(bb, e);
memset(e->data, 'B', e->size);
memset(e->data, 'A', 1);
SLN_ERR(sln_brigade_pread_bytes(bb, 0, 1, &buf[0], &len));
assert_int_equal(len, 1);
assert_memory_equal(buf, "A", 1);
SLN_ERR(sln_brigade_pread_bytes(bb, 1, 1, &buf[0], &len));
assert_int_equal(len, 1);
assert_memory_equal(buf, "B", 1);
SLN_ERR(sln_brigade_pread_bytes(bb, 0, 2, &buf[0], &len));
assert_int_equal(len, 2);
assert_memory_equal(buf, "AB", 2);
SLN_ERR(sln_brigade_pread_bytes(bb, 2, 2, &buf[0], &len));
assert_int_equal(len, 2);
assert_memory_equal(buf, "BB", 2);
sln_brigade_destroy(bb);
}
static void brigade_copy_into(void **state)
{
sln_brigade_t *source;
sln_brigade_t *dest;
sln_bucket_t *e1;
char buf[20];
size_t len = 0;
SLN_ERR(sln_brigade_create(sln_test_alloc, &source));
SLN_ERR(sln_bucket_create_empty(sln_test_alloc, &e1, 10));
SLN_BRIGADE_INSERT_TAIL(source, e1);
memset(e1->data, 'A', e1->size);
SLN_ERR(sln_brigade_create(sln_test_alloc, &dest));
SLN_ERR(sln_brigade_copy_into(source, 0, 10, dest));
assert_int_equal(sln_brigade_size(dest), 10);
SLN_ERR(sln_brigade_pread_bytes(dest, 0, 10, &buf[0], &len));
assert_memory_equal(buf, "AAAAAAAAAA", 2);
sln_brigade_clear(dest);
sln_brigade_destroy(dest);
SLN_ERR(sln_brigade_create(sln_test_alloc, &dest));
SLN_ERR(sln_brigade_copy_into(source, 2, 4, dest));
assert_int_equal(sln_brigade_size(dest), 4);
SLN_ERR(sln_brigade_pread_bytes(dest, 0, 4, &buf[0], &len));
assert_memory_equal(buf, "AAAA", 4);
sln_brigade_clear(dest);
sln_brigade_destroy(dest);
sln_brigade_destroy(source);
}
static void brigade_chomp(void **state) {
sln_brigade_t *bb;
sln_bucket_t *e1;
char buf[20];
size_t len = 0;
SLN_ERR(sln_brigade_create(sln_test_alloc, &bb));
SLN_ERR(sln_bucket_create_empty(sln_test_alloc, &e1, 10));
SLN_BRIGADE_INSERT_TAIL(bb, e1);
memset(e1->data, 'A', e1->size);
assert_int_equal(sln_brigade_size(bb), 10);
SLN_ERR(sln_brigade_chomp(bb, 1));
assert_int_equal(sln_brigade_size(bb), 9);
SLN_ERR(sln_brigade_chomp(bb, 8));
assert_int_equal(sln_brigade_size(bb), 1);
sln_brigade_destroy(bb);
SLN_ERR(sln_brigade_create(sln_test_alloc, &bb));
SLN_ERR(sln_bucket_create_empty(sln_test_alloc, &e1, 10));
SLN_BRIGADE_INSERT_TAIL(bb, e1);
memset(e1->data, 'A', e1->size);
SLN_ERR(sln_bucket_create_empty(sln_test_alloc, &e1, 10));
SLN_BRIGADE_INSERT_TAIL(bb, e1);
memset(e1->data, 'B', e1->size);
assert_int_equal(sln_brigade_size(bb), 20);
SLN_ERR(sln_brigade_chomp(bb, 8));
assert_int_equal(sln_brigade_size(bb), 12);
SLN_ERR(sln_brigade_pread_bytes(bb, 0, 4, &buf[0], &len));
assert_memory_equal(buf, "AABB", 4);
SLN_ERR(sln_brigade_chomp(bb, 2));
assert_int_equal(sln_brigade_size(bb), 10);
SLN_ERR(sln_brigade_pread_bytes(bb, 0, 4, &buf[0], &len));
assert_memory_equal(buf, "BBBB", 4);
SLN_ERR(sln_brigade_chomp(bb, 2));
SLN_ERR(sln_brigade_pread_bytes(bb, 0, 8, &buf[0], &len));
assert_memory_equal(buf, "BBBBBBBB", 8);
assert_int_equal(sln_brigade_size(bb), 8);
sln_brigade_destroy(bb);
}
static void brigade_pread_more_buckets(void **state)
{
sln_brigade_t *bb;
sln_bucket_t *e1;
sln_bucket_t *e2;
char buf[20];
size_t len = 0;
SLN_ERR(sln_brigade_create(&bb));
SLN_ERR(sln_bucket_create_empty(&e1, 10));
SLN_BRIGADE_INSERT_TAIL(bb, e1);
memset(e1->data, 'A', e1->size);
SLN_ERR(sln_bucket_create_empty(&e2, 10));
SLN_BRIGADE_INSERT_TAIL(bb, e2);
memset(e2->data, 'B', e2->size);
SLN_ERR(sln_brigade_pread_bytes(bb, 9, 1, &buf[0], &len));
assert_int_equal(len, 1);
assert_memory_equal(buf, "A", 1);
SLN_ERR(sln_brigade_pread_bytes(bb, 11, 1, &buf[0], &len));
assert_int_equal(len, 1);
assert_memory_equal(buf, "B", 1);
SLN_ERR(sln_brigade_pread_bytes(bb, 9, 2, &buf[0], &len));
assert_int_equal(len, 2);
assert_memory_equal(buf, "AB", 2);
SLN_ERR(sln_brigade_pread_bytes(bb, 11, 2, &buf[0], &len));
assert_int_equal(len, 2);
assert_memory_equal(buf, "BB", 2);
SLN_ERR(sln_brigade_pread_bytes(bb, 0, 20, &buf[0], &len));
assert_int_equal(len, 20);
assert_memory_equal(buf, "AAAAAAAAAABBBBBBBBBB", 20);
sln_brigade_destroy(bb);
}
selene_error_t *sln_tok_parser(sln_brigade_t *bb, sln_tok_cb cb, void *baton) {
int keepgoing = 1;
selene_error_t *err = SELENE_SUCCESS;
sln_tok_value_t tvalue;
size_t rlen;
size_t offset = 0;
sln_brigade_t *tmpbb = NULL;
memset(&tvalue, 0, sizeof(tvalue));
tvalue.next = TOK_INIT;
while (keepgoing == 1) {
tvalue.current = tvalue.next;
err = cb(&tvalue, baton);
if (err) {
break;
}
switch (tvalue.next) {
case TOK__UNUSED:
case TOK__MAX:
case TOK_INIT:
case TOK_DONE:
keepgoing = 0;
break;
case TOK_SKIP:
if (tvalue.wantlen > sln_brigade_size(bb)) {
keepgoing = 0;
break;
}
break;
case TOK_UINT16:
SLN_ASSERT(tvalue.wantlen == 2);
err = sln_brigade_pread_bytes(bb, offset, tvalue.wantlen,
&tvalue.v.bytes[0], &rlen);
if (err) {
keepgoing = 0;
break;
}
if (rlen != tvalue.wantlen) {
keepgoing = 0;
break;
}
tvalue.v.uint16 = (((unsigned char)tvalue.v.bytes[0]) << 8 |
((unsigned char)tvalue.v.bytes[1]));
break;
case TOK_UINT24:
SLN_ASSERT(tvalue.wantlen == 3);
err = sln_brigade_pread_bytes(bb, offset, tvalue.wantlen,
&tvalue.v.bytes[0], &rlen);
if (err) {
keepgoing = 0;
break;
}
if (rlen != tvalue.wantlen) {
keepgoing = 0;
break;
}
tvalue.v.uint24 = (((unsigned char)tvalue.v.bytes[0]) << 16 |
((unsigned char)tvalue.v.bytes[1]) << 8 |
((unsigned char)tvalue.v.bytes[2]));
break;
case TOK_COPY_BYTES:
SLN_ASSERT(tvalue.wantlen <= SLN_TOK_VALUE_MAX_BYTE_COPY_LEN);
err = sln_brigade_pread_bytes(bb, offset, tvalue.wantlen,
&tvalue.v.bytes[0], &rlen);
if (err) {
keepgoing = 0;
break;
}
if (rlen != tvalue.wantlen) {
keepgoing = 0;
}
break;
case TOK_COPY_BRIGADE:
if (tvalue.wantlen > sln_brigade_size(bb)) {
keepgoing = 0;
break;
}
if (tmpbb == NULL) {
err = sln_brigade_create(bb->alloc, &tmpbb);
if (err) {
keepgoing = 0;
break;
}
} else {
sln_brigade_clear(tmpbb);
}
tvalue.v.bb = tmpbb;
/* TODO: optimization, this isn't required */
err = sln_brigade_copy_into(bb, offset, tvalue.wantlen, tmpbb);
if (err) {
keepgoing = 0;
break;
}
break;
}
offset += tvalue.wantlen;
tvalue.current = TOK__UNUSED;
}
if (tmpbb != NULL) {
sln_brigade_destroy(tmpbb);
}
return err;
}