diff options
Diffstat (limited to 'src/lib/ubjson/ubjr.c')
| -rw-r--r-- | src/lib/ubjson/ubjr.c | 516 |
1 files changed, 0 insertions, 516 deletions
diff --git a/src/lib/ubjson/ubjr.c b/src/lib/ubjson/ubjr.c deleted file mode 100644 index 461459e..0000000 --- a/src/lib/ubjson/ubjr.c +++ /dev/null @@ -1,516 +0,0 @@ -#include "lib/ubjson/ubj.h"
-#include "lib/ubjson/ubj_internal.h"
-#include <stdlib.h>
-#include <string.h>
-
-#if _MSC_VER
-#define inline __inline
-#endif
-
-typedef struct ubjr_context_t_s
-{
- size_t (*read_cb )(void* data, size_t size, size_t count, void* userdata);
- int (*peek_cb )(void* userdata);
- int (*close_cb)(void* userdata);
- void (*error_cb)(const char* error_msg);
-
- void* userdata;
-
-// struct _ubjr_container_t container_stack[CONTAINER_STACK_MAX];
-// struct _ubjr_container_t* head;
-
- uint8_t ignore_container_flags;
-
- uint16_t last_error_code;
-
- size_t total_read;
-} ubjr_context_t;
-
-ubjr_context_t* ubjr_open_callback(void* userdata,
- size_t(*read_cb)(void* data, size_t size, size_t count, void* userdata),
- int(*peek_cb)(void* userdata),
- int(*close_cb)(void* userdata),
- void(*error_cb)(const char* error_msg)
- )
-{
- ubjr_context_t* ctx = (ubjr_context_t*)malloc(sizeof(ubjr_context_t));
- ctx->userdata = userdata;
- ctx->read_cb = read_cb;
- ctx->peek_cb = peek_cb;
- ctx->close_cb = close_cb;
- ctx->error_cb = error_cb;
-
-
-/* ctx->head = ctx->container_stack;
- ctx->head->flags = 0;
- ctx->head->type = UBJ_MIXED;
- ctx->head->elements_remaining = 0;
-
- ctx->ignore_container_flags = 0;*/
-
- ctx->last_error_code = 0;
-
- ctx->total_read = 0;
- return ctx;
-}
-
-size_t ubjr_close_context(ubjr_context_t* ctx)
-{
- size_t n = ctx->total_read;
- free(ctx);
- return n;
-}
-
-static inline uint8_t priv_ubjr_context_getc(ubjr_context_t* ctx)
-{
- uint8_t a;
- ctx->total_read += 1;
- ctx->read_cb(&a, 1, 1, ctx->userdata);
- return a;
-}
-
-static int fpeek(void* fp)
-{
- int c;
- c = fgetc(fp);
- ungetc(c, fp);
-
- return c;
-}
-
-ubjr_context_t* ubjr_open_file(FILE* fd)
-{
- return ubjr_open_callback(fd, (void*)fread,(void*)fpeek,(void*)fclose, NULL);
-}
-
-struct mem_r_fd
-{
- const uint8_t *begin, *current, *end;
-};
-static int memclose(void* mfd)
-{
- //free(mfd);
- return 0;
-}
-static size_t memread(void* data, size_t size, size_t count, struct mem_r_fd* fp)
-{
- size_t n = size*count;
- size_t lim = fp->end - fp->current;
- if (lim < n)
- {
- n = lim;
- }
- memcpy(data, fp->current, n);
- fp->current += n;
- return n;
-}
-static int mempeek(struct mem_r_fd* mfd)
-{
- return *mfd->current;
-}
-
-ubjr_context_t* ubjr_open_memory(const uint8_t* be, const uint8_t* en)
-{
- struct mem_r_fd* mfd = (struct mem_r_fd*)malloc(sizeof(struct mem_r_fd));
- mfd->current = be;
- mfd->begin = be;
- mfd->end = en;
- return ubjr_open_callback(mfd, (void*)memread, (void*)mempeek,(void*)memclose, NULL);
-}
-
-static inline int priv_ubjr_context_peek(ubjr_context_t* ctx)
-{
- return ctx->peek_cb(ctx->userdata);
-}
-static inline size_t priv_ubjr_context_read(ubjr_context_t* ctx,uint8_t* dst,size_t n)
-{
- size_t nr=ctx->read_cb(dst,n,1,ctx->userdata);
- ctx->total_read+=nr;
- return nr;
-}
-
-typedef struct priv_ubjr_sorted_key_t_s
-{
- ubjr_string_t key;
- const uint8_t* value;
-
-} priv_ubjr_sorted_key_t;
-
-static int _obj_key_cmp(const void* av, const void* bv)
-{
- const priv_ubjr_sorted_key_t *a, *b;
- a = (const priv_ubjr_sorted_key_t*)av;
- b = (const priv_ubjr_sorted_key_t*)bv;
- return strcmp(a->key,b->key);
-}
-
-static inline UBJ_TYPE priv_ubjr_type_from_char(uint8_t c)
-{
- int i = 0; //TODO: Benchmark this and see if it should be a switch statement where the compiler implements fastest switch e.g. binary search (17 cases might be binary search fast)
- for (i = 0; i < UBJ_NUM_TYPES && UBJI_TYPEC_convert[i] != c; i++);
- return (UBJ_TYPE)i;
-}
-
-size_t ubjr_local_type_size(UBJ_TYPE typ)
-{
- return UBJR_TYPE_localsize[typ];
-}
-
-
-static inline priv_ubjr_sorted_key_t* priv_ubjr_object_build_sorted_keys(ubjr_object_t* obj)
-{
- priv_ubjr_sorted_key_t* sorted_keysmem = malloc(obj->size*sizeof(priv_ubjr_sorted_key_t));
- size_t i;
- for (i = 0; i < obj->size; i++)
- {
- sorted_keysmem[i].key = obj->keys[i];
- sorted_keysmem[i].value = (const uint8_t*)obj->values + i*UBJR_TYPE_localsize[obj->type];
- }
- qsort(sorted_keysmem, obj->size, sizeof(priv_ubjr_sorted_key_t), _obj_key_cmp);
- return sorted_keysmem;
-}
-
-static inline uint8_t priv_ubjr_read_1b(ubjr_context_t* ctx)
-{
- return priv_ubjr_context_getc(ctx);
-}
-static inline uint16_t priv_ubjr_read_2b(ubjr_context_t* ctx)
-{
- return (uint16_t)priv_ubjr_read_1b(ctx) << 8 | (uint16_t)priv_ubjr_read_1b(ctx);
-}
-static inline uint32_t priv_ubjr_read_4b(ubjr_context_t* ctx)
-{
- return (uint32_t)priv_ubjr_read_2b(ctx) << 16 | (uint32_t)priv_ubjr_read_2b(ctx);
-}
-static inline uint64_t priv_ubjr_read_8b(ubjr_context_t* ctx)
-{
- return (uint64_t)priv_ubjr_read_4b(ctx) << 32 | (uint64_t)priv_ubjr_read_4b(ctx);
-}
-
-static inline int64_t priv_ubjw_read_integer(ubjr_context_t* ctx)
-{
- ubjr_dynamic_t d = ubjr_read_dynamic(ctx);
- if (d.type >= UBJ_INT8 && d.type <= UBJ_INT64)
- return d.integer;
- return 0;//error
-}
-
-static inline ubjr_object_t priv_ubjr_read_raw_object(ubjr_context_t* ctx);
-static inline ubjr_array_t priv_ubjr_read_raw_array(ubjr_context_t* ctx);
-static inline void priv_ubjr_read_to_ptr(ubjr_context_t* ctx, uint8_t* dst, UBJ_TYPE typ)
-{
- int64_t n = 1;
- char *tstr;
- switch (typ)
- {
- case UBJ_MIXED:
- {
- *(ubjr_dynamic_t*)dst = ubjr_read_dynamic(ctx);
- break;
- }
- case UBJ_STRING:
- case UBJ_HIGH_PRECISION:
- {
- n = priv_ubjw_read_integer(ctx);
- }
- case UBJ_CHAR:
- {
- tstr = malloc(n + 1);
- priv_ubjr_context_read(ctx, tstr, n);
- tstr[n] = 0;
- *(ubjr_string_t*)dst = tstr;
- break;
- }
- case UBJ_INT8:
- case UBJ_UINT8:
- {
- *dst = priv_ubjr_read_1b(ctx);
- break;
- }
- case UBJ_INT16:
- {
- *(uint16_t*)dst = priv_ubjr_read_2b(ctx);
- break;
- }
- case UBJ_INT32:
- case UBJ_FLOAT32:
- {
- *(uint32_t*)dst = priv_ubjr_read_4b(ctx);
- break;
- }
- case UBJ_INT64:
- case UBJ_FLOAT64:
- {
- *(uint64_t*)dst = priv_ubjr_read_8b(ctx);
- break;
- }
- case UBJ_ARRAY:
- {
- *(ubjr_array_t*)dst = priv_ubjr_read_raw_array(ctx);
- break;
- }
- case UBJ_OBJECT:
- {
- *(ubjr_object_t*)dst = priv_ubjr_read_raw_object(ctx);
- break;
- }
- };
-}
-
-ubjr_dynamic_t ubjr_object_lookup(ubjr_object_t* obj, const char* key)
-{
- if (obj->metatable == NULL)
- {
- //memcpy(obj->sorted_keys,obj->keys)
- obj->metatable = priv_ubjr_object_build_sorted_keys(obj);
- }
- void* result=bsearch(key, obj->metatable,obj->size, sizeof(priv_ubjr_sorted_key_t),_obj_key_cmp);
- if (result == NULL)
- {
- ubjr_dynamic_t nulldyn;
- nulldyn.type = UBJ_NULLTYPE;
- return nulldyn;
- }
- const priv_ubjr_sorted_key_t* result_key = (const priv_ubjr_sorted_key_t*)result;
- return priv_ubjr_pointer_to_dynamic(obj->type,result_key->value);
-}
-
-size_t ubjr_ndarray_index(const ubjr_array_t* arr, const size_t* indices)
-{
- //multi-dimensional array to linear array lookup
- size_t cstride = 1;
- size_t cdex = 0;
- uint8_t i;
- uint8_t nd = arr->num_dims;
- const size_t* dims = arr->dims;
- for (i = 0; i<nd; i++)
- {
- cdex += cstride*indices[i];
- cstride *= dims[i];
- }
- return cdex;
-}
-
-
-
-ubjr_dynamic_t ubjr_read_dynamic(ubjr_context_t* ctx)
-{
- ubjr_dynamic_t scratch; //scratch memory
- UBJ_TYPE newtyp = priv_ubjr_type_from_char(priv_ubjr_context_getc(ctx));
- priv_ubjr_read_to_ptr(ctx, (uint8_t*)&scratch, newtyp);
- return priv_ubjr_pointer_to_dynamic(newtyp, &scratch);
-}
-
-static inline void priv_read_container_params(ubjr_context_t* ctx, UBJ_TYPE* typout, size_t* sizeout)
-{
- int nextchar = priv_ubjr_context_peek(ctx);
- if (nextchar == '$')
- {
- priv_ubjr_context_getc(ctx);
- *typout = priv_ubjr_type_from_char(priv_ubjr_context_getc(ctx));
- nextchar = priv_ubjr_context_peek(ctx);
- }
- else
- {
- *typout = UBJ_MIXED;
- }
-
- if (nextchar == '#')
- {
- priv_ubjr_context_getc(ctx);
- *sizeout = priv_ubjw_read_integer(ctx);
- }
- else
- {
- *sizeout = 0;
- }
-}
-//TODO: This can be reused for object
-
-static inline ubjr_array_t priv_ubjr_read_raw_array(ubjr_context_t* ctx)
-{
- ubjr_array_t myarray;
- priv_read_container_params(ctx,&myarray.type,&myarray.size);
- myarray.num_dims = 1;
- myarray.dims = NULL;
- if (myarray.type != UBJ_MIXED && myarray.size==0) //params detected this is a typed array but no size was detected..possibly an N-D array?
- {
- if (priv_ubjr_context_peek(ctx) == '@')
- {
- uint8_t dselect;
- priv_ubjr_context_getc(ctx);//skip over the '@' marker
- myarray.num_dims = priv_ubjr_context_getc(ctx);//since max is 8, no type indicator needed...always a int7 type
- myarray.dims = malloc(sizeof(size_t)*myarray.num_dims);
- myarray.size = 1;
- for (dselect = 0; dselect < myarray.num_dims; dselect++)
- {
- size_t d = priv_ubjw_read_integer(ctx);
- myarray.dims[dselect] = d;
- myarray.size *= d;
- }
- }
- }
-
- size_t ls = UBJR_TYPE_localsize[myarray.type];
- if (myarray.size == 0)
- {
- myarray.originally_sized = 0;
- size_t arrpot = 0;
- myarray.values=malloc(1*ls+1); //the +1 is for memory for the 0-size elements
- for (myarray.size = 0; priv_ubjr_context_peek(ctx) != ']'; myarray.size++)
- {
- if (myarray.size >= (1ULL << arrpot))
- {
- arrpot ++;
- myarray.values = realloc(myarray.values, (1ULL << arrpot)*ls+1);
- }
- priv_ubjr_read_to_ptr(ctx,(uint8_t*)myarray.values + ls*myarray.size,myarray.type);
- }
- priv_ubjr_context_getc(ctx); // read the closing ']'
- }
- else
- {
- myarray.originally_sized = 1;
- size_t i;
- myarray.values = malloc(ls*myarray.size+1);
- size_t sz = UBJI_TYPE_size[myarray.type];
-
- if (sz >= 0 && myarray.type != UBJ_STRING && myarray.type != UBJ_HIGH_PRECISION && myarray.type != UBJ_CHAR && myarray.type != UBJ_MIXED) //constant size,fastread
- {
- priv_ubjr_context_read(ctx, myarray.values, sz*myarray.size);
- buf_endian_swap(myarray.values, sz, myarray.size); //do nothing for 0-sized buffers
- }
- else
- {
- for (i = 0; i < myarray.size; i++)
- {
- priv_ubjr_read_to_ptr(ctx, (uint8_t*)myarray.values + ls*i, myarray.type);
- }
- }
- }
- if (myarray.dims == NULL)
- {
- myarray.dims = malloc(sizeof(size_t));
- myarray.dims[0] = myarray.size;
- }
- return myarray;
-}
-
-static inline ubjr_object_t priv_ubjr_read_raw_object(ubjr_context_t* ctx)
-{
- ubjr_object_t myobject;
- myobject.metatable = NULL;
- priv_read_container_params(ctx, &myobject.type, &myobject.size);
-
- size_t ls = UBJR_TYPE_localsize[myobject.type];
- if (myobject.size == 0)
- {
- myobject.originally_sized = 0;
- size_t arrpot = 0;
- myobject.values = malloc(1 * ls + 1); //the +1 is for memory for the 0-size elements
- myobject.keys = malloc(1 * sizeof(ubjr_string_t));
- for (myobject.size = 0; priv_ubjr_context_peek(ctx) != '}'; myobject.size++)
- {
- if (myobject.size >= (1ULL << arrpot))
- {
- arrpot++;
- myobject.values = realloc(myobject.values, (1ULL << arrpot)*ls + 1);
- myobject.keys = realloc((uint8_t*)myobject.keys, (1ULL << arrpot)*sizeof(ubjr_string_t));
- }
- priv_ubjr_read_to_ptr(ctx, (uint8_t*)(myobject.keys + myobject.size), UBJ_STRING);
- priv_ubjr_read_to_ptr(ctx, (uint8_t*)myobject.values + ls*myobject.size, myobject.type);
- }
- priv_ubjr_context_getc(ctx); // read the closing '}'
- }
- else
- {
- size_t i;
- myobject.originally_sized = 1;
- myobject.values = malloc(ls*myobject.size + 1);
- myobject.keys = malloc(myobject.size * sizeof(ubjr_string_t));
-
- for (i = 0; i < myobject.size; i++)
- {
- priv_ubjr_read_to_ptr(ctx, (uint8_t*)(myobject.keys + i), UBJ_STRING);
- priv_ubjr_read_to_ptr(ctx, (uint8_t*)myobject.values + ls*i, myobject.type);
- }
- }
- return myobject;
-}
-static inline void priv_ubjr_cleanup_pointer(UBJ_TYPE typ,void* value);
-static inline priv_ubjr_cleanup_container(UBJ_TYPE type,size_t size,void* values)
-{
- if(type == UBJ_MIXED || type == UBJ_ARRAY || type == UBJ_OBJECT || type == UBJ_STRING)
- {
- size_t ls=UBJR_TYPE_localsize[type];
- uint8_t *viter,*vend;
- viter=values;
- vend=viter+ls*size;
- for(;viter != vend;viter+=ls)
- {
- priv_ubjr_cleanup_pointer(type,(void*)viter);
- }
- }
- free(values);
-}
-static inline void priv_ubjr_cleanup_pointer(UBJ_TYPE typ,void* value)
-{
- switch(typ)
- {
- case UBJ_MIXED:
- {
- ubjr_dynamic_t* dyn=(ubjr_dynamic_t*)value;
- switch(dyn->type)
- {
- case UBJ_STRING:
- priv_ubjr_cleanup_pointer(UBJ_STRING,&dyn->string);
- break;
- case UBJ_ARRAY:
- priv_ubjr_cleanup_pointer(UBJ_ARRAY,&dyn->container_array);
- break;
- case UBJ_OBJECT:
- priv_ubjr_cleanup_pointer(UBJ_OBJECT,&dyn->container_object);
- break;
- };
- break;
- }
- case UBJ_STRING:
- {
- ubjr_string_t* st=(ubjr_string_t*)value;
- free((void*)*st);
- break;
- }
- case UBJ_ARRAY:
- {
- ubjr_array_t* arr=(ubjr_array_t*)value;
- priv_ubjr_cleanup_container(arr->type,arr->size,arr->values);
- free(arr->dims);
- break;
- }
- case UBJ_OBJECT:
- {
- ubjr_object_t* obj=(ubjr_object_t*)value;
- priv_ubjr_cleanup_container(obj->type,obj->size,obj->values);
- priv_ubjr_cleanup_container(UBJ_STRING,obj->size,obj->keys);
- if(obj->metatable)
- {
- free(obj->metatable);
- }
- break;
- }
- };
-}
-
-void ubjr_cleanup_dynamic(ubjr_dynamic_t* dyn)
-{
- priv_ubjr_cleanup_pointer(UBJ_MIXED,dyn);
-}
-void ubjr_cleanup_array(ubjr_array_t* arr)
-{
- priv_ubjr_cleanup_pointer(UBJ_ARRAY,arr);
-}
-void ubjr_cleanup_object(ubjr_object_t* obj)
-{
- priv_ubjr_cleanup_pointer(UBJ_OBJECT,obj);
-}
-
|