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Tapes now self-describing. Introduced temporary limit of 16MB (2^24) file size (fix later w. streaming)

This commit is contained in:
Geoff Langdale 2018-05-01 10:39:26 +10:00
parent 350aeecf3d
commit 232607278a
1 changed files with 14 additions and 4 deletions
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18
main.cpp
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@ -53,7 +53,8 @@ ifstream is(filename, ios::binary);
size_t length = buffer.str().size();
char * aligned_buffer;
if (posix_memalign( (void **)&aligned_buffer, 64, ROUNDUP_N(length, 64))) {
throw "Allocation failed";
cerr << "Could not allocate memory\n";
exit(1);
};
memset(aligned_buffer, 0x20, ROUNDUP_N(length, 64));
memcpy(aligned_buffer, buffer.str().c_str(), length);
@ -478,7 +479,8 @@ never_inline bool ape_machine(const u8 * buf, UNUSED size_t len, ParsedJson & pj
cout << "TAPE MACHINE: depth change " << (s32)depth_adjust
<< " write_size " << (u32)write_size << " current_depth: " << depth << "\n";
#endif
tape[tape_locs[depth]] = take_uptape ? old_tape_loc : idx;
u32 write_val = take_uptape ? old_tape_loc : idx;
tape[tape_locs[depth]] = write_val | (c << 24); // hack. Assumes no more than 2^24 tape items and buffer size for now
old_tape_loc = tape_locs[depth] += write_size;
// STATE MACHINE
@ -504,7 +506,10 @@ never_inline bool ape_machine(const u8 * buf, UNUSED size_t len, ParsedJson & pj
cout << " state: " << states[i] << "\n";
#ifdef DUMP_TAPES
for (u32 j = start_loc; j < tape_locs[i]; j++) {
cout << "j: " << j << " tape[j]: " << tape[j] << "\n";
if (tape[j]) {
cout << "j: " << j << " tape[j] char " << (char)(tape[j]>>24)
<< " tape[j][0..23]: " << (tape[j]&0xffffff) << "\n";
}
}
#endif
}
@ -573,9 +578,14 @@ int main(int argc, char * argv[]) {
ParsedJson pj;
if (posix_memalign( (void **)&pj.structurals, 8, ROUNDUP_N(p.second, 64)/8)) {
throw "Allocation failed";
cerr << "Could not allocate memory\n";
exit(1);
};
if (p.second > 0xffffff) {
cerr << "Currently only support JSON files < 16MB\n";
exit(1);
}
init_state_machine();
pj.n_structural_indexes = 0;