Commit Graph

18 Commits

Author SHA1 Message Date
John Keiser 9a7c8fb5be Use parse_many in examples/tests/docs 2020-03-05 12:04:45 -08:00
John Keiser 0b21203141 Document navigation API 2020-03-02 14:49:03 -08:00
John Keiser 4dc2adf7f8 Update README, add README examples 2020-02-18 08:37:07 -08:00
John Keiser da34f9a253 Add Google Benchmark for calling conventions
- disable it on ubuntu 18.04 tests, which fail for [really can't figure
out why]
2020-02-18 08:37:07 -08:00
John Keiser 8e7d1a5f09
Separate document state from ParsedJson
This creates a "document" class with only user-facing document state (no parser internals).

- document: user-facing document state
- document::iterator: iterator (equivalent of ParsedJsonIterator)
- document::parser: parser state plus a "docked" document we parse into (equivalent of ParsedJson)

Usage:

```c++
auto doc = simdjson::document::parse(buf, len); // less efficient but simplest
```

```c++
simdjson::document::parser parser; // reusable parser
parser.allocate_capacity(len);
simdjson::document* doc = parser.parse(buf, len); // pointer to doc inside parser
doc = parser.parse(buf2, len); // reuses all buffers and overwrites doc; more efficient
```
2020-02-07 10:02:36 -08:00
dbj 2caa6e3370 C++ language version detection (#418)
* added visual_studio folder where visual_studio cmake generated, local artefacts are

* C++ version detection
2020-01-06 11:38:09 -05:00
John Keiser d7c83397e4 lookup+cont-check algorithm 2019-12-18 14:37:21 -08:00
John Keiser e2f349e7bd Measure impact of utf-8 blocks and structurals per block directly 2019-12-17 11:41:13 -08:00
piotte13 f345490cae Updating .gitignore for most popular IDEs 2019-11-26 10:59:18 -05:00
Jeremie Piotte 29fc51522a
Introducing concurrency mode in JsonStream. (#373)
* JsonStream threaded prototype

* JsonStream Threaded version working. Still supporting non-threaded version.

* Fix where invalid files would enter infinite loop.

* SingleHeader update

* I will remove -pthread in cmake for now.

* Attempt at resolving the -pthread issue
2019-11-21 11:22:06 -05:00
John Keiser ce824f8653 Decrease stage 1 step size to 64 bytes on Westmere/ARM
- Templatize scan_step() with STAGE1_STEP_SIZE
- Fix simd8::store()
- add NUM_CHUNKS to simd8
2019-11-18 21:58:07 -08:00
John Keiser de8df0a05f Combined performance patch (5% overall, 15% stage 1) (#317)
* Allow -f

* Support parse -s (force sse)

* Simplify flatten_bits

- Add directly to base instead of storing variable
- Don't modify base_ptr after beginning of function
- Eliminate base variable and increment base_ptr instead

* De-unroll the flatten_bits loops

* Decrease dependencies in stage 1

- Do all finalize_structurals work before computing the quote mask; mask
  out the quote mask later
- Join find_whitespace_and_structurals and finalize_structurals into
  single find_structurals call, to reduce variable leakage
- Rework pseudo_pred algorithm to refer to "primitive" for clarity and some
  dependency reduction
- Rename quote_mask to in_string to describe what we're trying to
  achieve ("mask" could mean many things)
- Break up find_quote_mask_and_bits into find_quote_mask and
  invalid_string_bytes to reduce data leakage (i.e. don't expose quote bits
  or odd_ends at all to find_structural_bits)
- Genericize overflow methods "follows" and "follows_odd_sequence" for
  descriptiveness and possible lifting into a generic simd parsing library

* Mark branches as likely/unlikely

* Reorder and unroll+interleave stage 1 loop

* Nest the cnt > 16 branch inside cnt > 8
2019-10-01 12:01:08 -04:00
saka1 c1f27fb848 Accept large unsigned integers (#295)
* handle uint64 value in JSON
* Add integer_tests
* Add get_unsigned_integer() on  ParsedJson::BasicIterator
* Write 'u' to tape when the value seems unsigned
* Add to handle 'u' element
* Brush up integer_tests.cpp
* Append tests/integer_tests in .gitignore
* Add comments to is_integer and is_unsigned_integer
2019-09-02 10:50:24 -04:00
saka1 a4bd87119b Remove duplicate lines in .gitignore (#300) 2019-08-25 09:34:13 -04:00
John Keiser 585f84a734 Move architecture-specific headers to src/ (#287)
* Use namespaces instead of templates for stage1 impls

* Move stage1 implementation into the src/ directory

* Move architecture-specific code to src/
2019-08-21 07:59:49 -04:00
saka1 18c5b8d68a Update .gitignore for cmake files (#289) 2019-08-18 17:24:38 -04:00
John Keiser 3bfa6097d5 .gitignore that ignores all the things 2019-08-14 10:33:30 -07:00
Thomas Navennec 9606343b2c ParsedJson & ParsedJson::iterator definitions in .cpp files (#47)
* Minor change to benchmark cmake

* Moved ParsedJson and its Iterator to separate .cpp files

* Uncommented functions, that has nothing to do with this pr

* Removed really_inline comments

* Reinstated some inline functions to restore previous performance

* Re-merged iterator in ParsedJson

* Uncommented some WARN_UNUSED
2019-02-22 14:38:35 -05:00