mirror of
https://github.com/simdjson/simdjson
synced 2026-06-08 17:27:07 +00:00
Thomas Navennec
352dd5e7fa
* Added simdjerr namespace * Updated jsonparser files * updated stage1 and stage2 * removed stage2 inline function * Added forgotten return statements * Updated tools and benchmarks * Corrected parenthesis * Removed extra = * Accidentally undid reinterpret_cast * Better comments, undid a header name fuckup * Added an errorMsg method, updated readme * Removed useless header from stage2 * Updated single-header file * added simdjerr.cpp contents to simdjson.cpp * Made single header version work * Updated singleheader test, fixed simdjson.cpp * Renamed simdjerr namespace and files to simdjson * Updating the amalgamation.
56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
#include "simdjson/jsonparser.h"
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#ifdef _MSC_VER
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#include <windows.h>
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#include <sysinfoapi.h>
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#else
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#include <unistd.h>
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#endif
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#include "simdjson/simdjson.h"
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// parse a document found in buf, need to preallocate ParsedJson.
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WARN_UNUSED
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int json_parse(const uint8_t *buf, size_t len, ParsedJson &pj, bool reallocifneeded) {
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if (pj.bytecapacity < len) {
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return simdjson::CAPACITY;
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}
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bool reallocated = false;
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if(reallocifneeded) {
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// realloc is needed if the end of the memory crosses a page
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#ifdef _MSC_VER
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SYSTEM_INFO sysInfo;
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GetSystemInfo(&sysInfo);
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long pagesize = sysInfo.dwPageSize;
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#else
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long pagesize = sysconf (_SC_PAGESIZE);
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#endif
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if ( (reinterpret_cast<uintptr_t>(buf + len - 1) % pagesize ) < SIMDJSON_PADDING ) {
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const uint8_t *tmpbuf = buf;
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buf = (uint8_t *) allocate_padded_buffer(len);
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if(buf == NULL) return simdjson::MEMALLOC;
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memcpy((void*)buf,tmpbuf,len);
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reallocated = true;
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}
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}
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// find_structural_bits returns a boolean, not an int, we invert its result to keep consistent with res == 0 meaning success
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int res = !find_structural_bits(buf, len, pj);
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if (!res) {
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res = unified_machine(buf, len, pj);
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}
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if(reallocated) { aligned_free((void*)buf);}
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return res;
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}
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WARN_UNUSED
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ParsedJson build_parsed_json(const uint8_t *buf, size_t len, bool reallocifneeded) {
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ParsedJson pj;
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bool ok = pj.allocateCapacity(len);
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if(ok) {
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int res = json_parse(buf, len, pj, reallocifneeded);
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ok = res == simdjson::SUCCESS;
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assert(ok == pj.isValid());
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} else {
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std::cerr << "failure during memory allocation " << std::endl;
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}
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return pj;
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}
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