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add class json

This commit is contained in:
gb 2022-12-31 11:38:27 +08:00
parent 8a08984470
commit d464c09d2c
7 changed files with 1938 additions and 2 deletions
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2
common/CMakeLists.txt
View File

@ -3,7 +3,7 @@ add_compile_options(-std=c++11)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
aux_source_directory(${PROJECT_SOURCE_DIR} DIR_SRCS) aux_source_directory(${PROJECT_SOURCE_DIR} DIR_SRCS)
file(GLOB DIR_HEADS "${PROJECT_SOURCE_DIR}/*.h" "${PROJECT_SOURCE_DIR}/*.cpp") file(GLOB DIR_HEADS "${PROJECT_SOURCE_DIR}/*" "${PROJECT_SOURCE_DIR}/json/*")
set(DIR_SRCS ${DIR_SRCS} ${DIR_HEADS}) set(DIR_SRCS ${DIR_SRCS} ${DIR_HEADS})
add_library(${PROJECT_NAME} STATIC ${DIR_SRCS}) add_library(${PROJECT_NAME} STATIC ${DIR_SRCS})

2
common/event_monitor.h
View File

@ -38,7 +38,7 @@ enum scanner_event
// 3 - image-process // 3 - image-process
SCANNER_EVENT_IMAGE_PROC_FINAL_BUF = 200, // on_event(, (void**)buf, (size_t)len), get buffer for store the final image SCANNER_EVENT_IMAGE_PROC_FINAL_BUF = 200, // on_event(, (void**)buf, (size_t)len), get buffer for store the final image
SCANNER_EVENT_IMAGE_PROC_OK, SCANNER_EVENT_IMAGE_PROC_OK, // on_event(, )
SCANNER_EVENT_IMAGE_PROC_ERR, SCANNER_EVENT_IMAGE_PROC_ERR,
// 4 - resource // 4 - resource

794
common/json/cJSON.c Normal file
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@ -0,0 +1,794 @@
/*
Copyright (c) 2009 Dave Gamble
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
/* cJSON */
/* JSON parser in C. */
#include <string.h>
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <float.h>
#include <limits.h>
#include <ctype.h>
#include "cJSON.h"
static const char *ep;
const char *cJSON_GetErrorPtr(void) {return ep;}
static int cJSON_strcasecmp(const char *s1,const char *s2)
{
if (!s1) return (s1==s2)?0:1;if (!s2) return 1;
for(; tolower(*s1) == tolower(*s2); ++s1, ++s2) if(*s1 == 0) return 0;
return tolower(*(const unsigned char *)s1) - tolower(*(const unsigned char *)s2);
}
static void* ask_memory(size_t bytes)
{
// printf("allocate %u bytes memory in cJSON\n", bytes);
return malloc(bytes);
}
static void *(*cJSON_malloc)(size_t sz) = ask_memory;
static void (*cJSON_free)(void *ptr) = free;
static char* cJSON_strdup(const char* str)
{
size_t len;
char* copy;
len = strlen(str) + 1;
if (!(copy = (char*)cJSON_malloc(len))) return 0;
memcpy(copy,str,len);
return copy;
}
void cJSON_InitHooks(cJSON_Hooks* hooks)
{
if (!hooks) { /* Reset hooks */
cJSON_malloc = ask_memory;
cJSON_free = free;
return;
}
cJSON_malloc = (hooks->malloc_fn)?hooks->malloc_fn:ask_memory;
cJSON_free = (hooks->free_fn)?hooks->free_fn:free;
}
/* Internal constructor. */
static cJSON *cJSON_New_Item(void)
{
cJSON* node = (cJSON*)cJSON_malloc(sizeof(cJSON));
if (node) memset(node,0,sizeof(cJSON));
return node;
}
/* Delete a cJSON structure. */
void cJSON_Delete(cJSON *c)
{
cJSON *next;
while (c)
{
next=c->next;
if (!(c->type&cJSON_IsReference) && c->child) cJSON_Delete(c->child);
if (!(c->type&cJSON_IsReference) && c->valuestring) cJSON_free(c->valuestring);
if (!(c->type&cJSON_StringIsConst) && c->string) cJSON_free(c->string);
cJSON_free(c);
c=next;
}
}
/* Parse the input text to generate a number, and populate the result into item. */
static const char *parse_number(cJSON *item,const char *num)
{
double n=0,sign=1,scale=0;int subscale=0,signsubscale=1;
if (*num=='-') sign=-1,num++; /* Has sign? */
if (*num=='0') num++; /* is zero */
if (*num>='1' && *num<='9') do n=(n*10.0)+(*num++ -'0'); while (*num>='0' && *num<='9'); /* Number? */
if (*num=='.' && num[1]>='0' && num[1]<='9') {num++; do n=(n*10.0)+(*num++ -'0'),scale--; while (*num>='0' && *num<='9');} /* Fractional part? */
if (*num=='e' || *num=='E') /* Exponent? */
{ num++;if (*num=='+') num++; else if (*num=='-') signsubscale=-1,num++; /* With sign? */
while (*num>='0' && *num<='9') subscale=(subscale*10)+(*num++ - '0'); /* Number? */
}
n=sign*n*pow(10.0,(scale+subscale*signsubscale)); /* number = +/- number.fraction * 10^+/- exponent */
item->valuedouble=n;
item->valueint=(int)n;
item->type=cJSON_Number;
return num;
}
static int pow2gt (int x) { --x; x|=x>>1; x|=x>>2; x|=x>>4; x|=x>>8; x|=x>>16; return x+1; }
typedef struct {char *buffer; int length; int offset; } printbuffer;
static char* ensure(printbuffer *p,int needed)
{
char *newbuffer;int newsize;
if (!p || !p->buffer) return 0;
needed+=p->offset;
if (needed<=p->length) return p->buffer+p->offset;
newsize=pow2gt(needed);
newbuffer=(char*)cJSON_malloc(newsize);
if (!newbuffer) {cJSON_free(p->buffer);p->length=0,p->buffer=0;return 0;}
if (newbuffer) memcpy(newbuffer,p->buffer,p->length);
cJSON_free(p->buffer);
p->length=newsize;
p->buffer=newbuffer;
return newbuffer+p->offset;
}
static int update(printbuffer *p)
{
char *str;
if (!p || !p->buffer) return 0;
str=p->buffer+p->offset;
return p->offset+strlen(str);
}
/* Render the number nicely from the given item into a string. */
static char *print_number(cJSON *item,printbuffer *p)
{
char *str=0;
double d=item->valuedouble;
if (d==0)
{
if (p) str=ensure(p,2);
else str=(char*)cJSON_malloc(2); /* special case for 0. */
if (str) strcpy(str,"0");
}
else if (fabs(((double)item->valueint)-d)<=DBL_EPSILON && d<=INT_MAX && d>=INT_MIN)
{
if (p) str=ensure(p,21);
else str=(char*)cJSON_malloc(21); /* 2^64+1 can be represented in 21 chars. */
if (str) sprintf(str,"%d",item->valueint);
}
else
{
if (p) str=ensure(p,64);
else str=(char*)cJSON_malloc(64); /* This is a nice tradeoff. */
if (str)
{
if (fabs(floor(d)-d)<=DBL_EPSILON && fabs(d)<1.0e60)sprintf(str,"%.0f",d);
else if (fabs(d)<1.0e-6 || fabs(d)>1.0e9) sprintf(str,"%e",d);
else sprintf(str,"%f",d);
}
}
return str;
}
static unsigned parse_hex4(const char *str)
{
unsigned h=0;
if (*str>='0' && *str<='9') h+=(*str)-'0'; else if (*str>='A' && *str<='F') h+=10+(*str)-'A'; else if (*str>='a' && *str<='f') h+=10+(*str)-'a'; else return 0;
h=h<<4;str++;
if (*str>='0' && *str<='9') h+=(*str)-'0'; else if (*str>='A' && *str<='F') h+=10+(*str)-'A'; else if (*str>='a' && *str<='f') h+=10+(*str)-'a'; else return 0;
h=h<<4;str++;
if (*str>='0' && *str<='9') h+=(*str)-'0'; else if (*str>='A' && *str<='F') h+=10+(*str)-'A'; else if (*str>='a' && *str<='f') h+=10+(*str)-'a'; else return 0;
h=h<<4;str++;
if (*str>='0' && *str<='9') h+=(*str)-'0'; else if (*str>='A' && *str<='F') h+=10+(*str)-'A'; else if (*str>='a' && *str<='f') h+=10+(*str)-'a'; else return 0;
return h;
}
/* Parse the input text into an unescaped cstring, and populate item. */
static const unsigned char firstByteMark[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
static const char *parse_string(cJSON *item,const char *str)
{
const char *ptr=str+1;char *ptr2;char *out;int len=0;unsigned uc,uc2;
if (*str!='\"') {ep=str;return 0;} /* not a string! */
while (*ptr!='\"' && *ptr && ++len) if (*ptr++ == '\\') ptr++; /* Skip escaped quotes. */
out=(char*)cJSON_malloc(len+1); /* This is how long we need for the string, roughly. */
if (!out) return 0;
ptr=str+1;ptr2=out;
while (*ptr!='\"' && *ptr)
{
if (*ptr!='\\') *ptr2++=*ptr++;
else
{
ptr++;
switch (*ptr)
{
case 'b': *ptr2++='\b'; break;
case 'f': *ptr2++='\f'; break;
case 'n': *ptr2++='\n'; break;
case 'r': *ptr2++='\r'; break;
case 't': *ptr2++='\t'; break;
case 'u': /* transcode utf16 to utf8. */
uc=parse_hex4(ptr+1);ptr+=4; /* get the unicode char. */
if ((uc>=0xDC00 && uc<=0xDFFF) || uc==0) break; /* check for invalid. */
if (uc>=0xD800 && uc<=0xDBFF) /* UTF16 surrogate pairs. */
{
if (ptr[1]!='\\' || ptr[2]!='u') break; /* missing second-half of surrogate. */
uc2=parse_hex4(ptr+3);ptr+=6;
if (uc2<0xDC00 || uc2>0xDFFF) break; /* invalid second-half of surrogate. */
uc=0x10000 + (((uc&0x3FF)<<10) | (uc2&0x3FF));
}
len=4;if (uc<0x80) len=1;else if (uc<0x800) len=2;else if (uc<0x10000) len=3; ptr2+=len;
switch (len) {
case 4: *--ptr2 =((uc | 0x80) & 0xBF); uc >>= 6;
case 3: *--ptr2 =((uc | 0x80) & 0xBF); uc >>= 6;
case 2: *--ptr2 =((uc | 0x80) & 0xBF); uc >>= 6;
case 1: *--ptr2 =(uc | firstByteMark[len]);
}
ptr2+=len;
break;
default: *ptr2++=*ptr; break;
}
ptr++;
}
}
*ptr2=0;
if (*ptr=='\"') ptr++;
item->valuestring=out;
item->type=cJSON_String;
return ptr;
}
char* cJSON_utf8_2_unic(const char* utf8)
{
char* unic = (char*)malloc(strlen(utf8) * 3 + 8);
unsigned char * cur = unic;
while (*cur = *utf8++)
{
if ((*cur & 0x0f0) == 0x0e0)
{
if (((unsigned char)utf8[0] & 0x0c0) == 0x80 &&
((unsigned char)utf8[1] & 0x0c0) == 0x80)
{
char* hex = "0123456789ABCDEF";
unsigned short us = *cur & 0x0f;
us <<= 6;
us += utf8[0] & 0x3f;
us <<= 6;
us += utf8[1] & 0x3f;
*cur++ = '\\';
*cur++ = 'u';
cur[3] = hex[us & 0x0f];
us >>= 4;
cur[2] = hex[us & 0x0f];
us >>= 4;
cur[1] = hex[us & 0x0f];
us >>= 4;
cur[0] = hex[us & 0x0f];
cur += 3;
utf8 += 2;
}
}
cur++;
}
*cur++ = 0;
return unic;
}
/* Render the cstring provided to an escaped version that can be printed. */
static char *print_string_ptr(const char *str,printbuffer *p)
{
const char *ptr;char *ptr2,*out;int len=0,flag=0;unsigned char token;
for (ptr=str;*ptr;ptr++) flag|=((*ptr>0 && *ptr<32)||(*ptr=='\"')||(*ptr=='\\'))?1:0;
if (!flag)
{
len=ptr-str;
if (p) out=ensure(p,len+3);
else out=(char*)cJSON_malloc(len+3);
if (!out) return 0;
ptr2=out;*ptr2++='\"';
strcpy(ptr2,str);
ptr2[len]='\"';
ptr2[len+1]=0;
return out;
}
if (!str)
{
if (p) out=ensure(p,3);
else out=(char*)cJSON_malloc(3);
if (!out) return 0;
strcpy(out,"\"\"");
return out;
}
ptr=str;while ((token=*ptr) && ++len) {if (strchr("\"\\\b\f\n\r\t",token)) len++; else if (token<32) len+=5;ptr++;}
if (p) out=ensure(p,len+3);
else out=(char*)cJSON_malloc(len+3);
if (!out) return 0;
ptr2=out;ptr=str;
*ptr2++='\"';
while (*ptr)
{
if ((unsigned char)*ptr>31 && *ptr!='\"' && *ptr!='\\') *ptr2++=*ptr++;
else
{
*ptr2++='\\';
switch (token=*ptr++)
{
case '\\': *ptr2++='\\'; break;
case '\"': *ptr2++='\"'; break;
case '\b': *ptr2++='b'; break;
case '\f': *ptr2++='f'; break;
case '\n': *ptr2++='n'; break;
case '\r': *ptr2++='r'; break;
case '\t': *ptr2++='t'; break;
default: sprintf(ptr2,"u%04x",token);ptr2+=5; break; /* escape and print */
}
}
}
*ptr2++='\"';*ptr2++=0;
return out;
}
/* Invote print_string_ptr (which is useful) on an item. */
static char *print_string(cJSON *item,printbuffer *p) {return print_string_ptr(item->valuestring,p);}
/* Predeclare these prototypes. */
static const char *parse_value(cJSON *item,const char *value);
static char *print_value(cJSON *item,int depth,int fmt,printbuffer *p);
static const char *parse_array(cJSON *item,const char *value);
static char *print_array(cJSON *item,int depth,int fmt,printbuffer *p);
static const char *parse_object(cJSON *item,const char *value);
static char *print_object(cJSON *item,int depth,int fmt,printbuffer *p);
/* Utility to jump whitespace and cr/lf */
static const char *skip(const char *in) {while (in && *in && (unsigned char)*in<=32) in++; return in;}
/* Parse an object - create a new root, and populate. */
cJSON *cJSON_ParseWithOpts(const char *value,const char **return_parse_end,int require_null_terminated)
{
const char *end=0;
cJSON *c=cJSON_New_Item();
ep=0;
if (!c) return 0; /* memory fail */
end=parse_value(c,skip(value));
if (!end) {cJSON_Delete(c);return 0;} /* parse failure. ep is set. */
/* if we require null-terminated JSON without appended garbage, skip and then check for a null terminator */
if (require_null_terminated) {end=skip(end);if (*end) {cJSON_Delete(c);ep=end;return 0;}}
if (return_parse_end) *return_parse_end=end;
return c;
}
/* Default options for cJSON_Parse */
cJSON *cJSON_Parse(const char *value) {return cJSON_ParseWithOpts(value,0,0);}
/* Render a cJSON item/entity/structure to text. */
char *cJSON_Print(cJSON *item) {return print_value(item,0,1,0);}
char *cJSON_PrintUnformatted(cJSON *item) {return print_value(item,0,0,0);}
char *cJSON_PrintBuffered(cJSON *item,int prebuffer,int fmt)
{
printbuffer p;
p.buffer=(char*)cJSON_malloc(prebuffer);
p.length=prebuffer;
p.offset=0;
return print_value(item,0,fmt,&p);
return p.buffer;
}
/* Parser core - when encountering text, process appropriately. */
static const char *parse_value(cJSON *item,const char *value)
{
if (!value) return 0; /* Fail on null. */
if (!strncmp(value,"null",4)) { item->type=cJSON_NULL; return value+4; }
if (!strncmp(value,"false",5)) { item->type=cJSON_False; return value+5; }
if (!strncmp(value,"true",4)) { item->type=cJSON_True; item->valueint=1; return value+4; }
if (*value=='\"') { return parse_string(item,value); }
if (*value=='-' || (*value>='0' && *value<='9')) { return parse_number(item,value); }
if (*value=='[') { return parse_array(item,value); }
if (*value=='{') { return parse_object(item,value); }
ep=value;return 0; /* failure. */
}
/* Render a value to text. */
static char *print_value(cJSON *item,int depth,int fmt,printbuffer *p)
{
char *out=0;
if (!item) return 0;
if (p)
{
switch ((item->type)&255)
{
case cJSON_NULL: {out=ensure(p,5); if (out) strcpy(out,"null"); break;}
case cJSON_False: {out=ensure(p,6); if (out) strcpy(out,"false"); break;}
case cJSON_True: {out=ensure(p,5); if (out) strcpy(out,"true"); break;}
case cJSON_Number: out=print_number(item,p);break;
case cJSON_String: out=print_string(item,p);break;
case cJSON_Array: out=print_array(item,depth,fmt,p);break;
case cJSON_Object: out=print_object(item,depth,fmt,p);break;
}
}
else
{
switch ((item->type)&255)
{
case cJSON_NULL: out=cJSON_strdup("null"); break;
case cJSON_False: out=cJSON_strdup("false");break;
case cJSON_True: out=cJSON_strdup("true"); break;
case cJSON_Number: out=print_number(item,0);break;
case cJSON_String: out=print_string(item,0);break;
case cJSON_Array: out=print_array(item,depth,fmt,0);break;
case cJSON_Object: out=print_object(item,depth,fmt,0);break;
}
}
return out;
}
/* Build an array from input text. */
static const char *parse_array(cJSON *item,const char *value)
{
cJSON *child;
if (*value!='[') {ep=value;return 0;} /* not an array! */
item->type=cJSON_Array;
value=skip(value+1);
if (*value==']') return value+1; /* empty array. */
item->child=child=cJSON_New_Item();
if (!item->child) return 0; /* memory fail */
value=skip(parse_value(child,skip(value))); /* skip any spacing, get the value. */
if (!value) return 0;
while (*value==',')
{
cJSON *new_item;
if (!(new_item=cJSON_New_Item())) return 0; /* memory fail */
child->next=new_item;new_item->prev=child;child=new_item;
value=skip(parse_value(child,skip(value+1)));
if (!value) return 0; /* memory fail */
}
if (*value==']') return value+1; /* end of array */
ep=value;return 0; /* malformed. */
}
/* Render an array to text */
static char *print_array(cJSON *item,int depth,int fmt,printbuffer *p)
{
char **entries;
char *out=0,*ptr,*ret;int len=5;
cJSON *child=item->child;
int numentries=0,i=0,fail=0;
size_t tmplen=0;
/* How many entries in the array? */
while (child) numentries++,child=child->next;
/* Explicitly handle numentries==0 */
if (!numentries)
{
if (p) out=ensure(p,3);
else out=(char*)cJSON_malloc(3);
if (out) strcpy(out,"[]");
return out;
}
if (p)
{
/* Compose the output array. */
i=p->offset;
ptr=ensure(p,1);if (!ptr) return 0; *ptr='['; p->offset++;
child=item->child;
while (child && !fail)
{
print_value(child,depth+1,fmt,p);
p->offset=update(p);
if (child->next) {len=fmt?2:1;ptr=ensure(p,len+1);if (!ptr) return 0;*ptr++=',';if(fmt)*ptr++=' ';*ptr=0;p->offset+=len;}
child=child->next;
}
ptr=ensure(p,2);if (!ptr) return 0; *ptr++=']';*ptr=0;
out=(p->buffer)+i;
}
else
{
/* Allocate an array to hold the values for each */
entries=(char**)cJSON_malloc(numentries*sizeof(char*));
if (!entries) return 0;
memset(entries,0,numentries*sizeof(char*));
/* Retrieve all the results: */
child=item->child;
while (child && !fail)
{
ret=print_value(child,depth+1,fmt,0);
entries[i++]=ret;
if (ret) len+=strlen(ret)+2+(fmt?1:0); else fail=1;
child=child->next;
}
/* If we didn't fail, try to ask_memory the output string */
if (!fail) out=(char*)cJSON_malloc(len);
/* If that fails, we fail. */
if (!out) fail=1;
/* Handle failure. */
if (fail)
{
for (i=0;i<numentries;i++) if (entries[i]) cJSON_free(entries[i]);
cJSON_free(entries);
return 0;
}
/* Compose the output array. */
*out='[';
ptr=out+1;*ptr=0;
for (i=0;i<numentries;i++)
{
tmplen=strlen(entries[i]);memcpy(ptr,entries[i],tmplen);ptr+=tmplen;
if (i!=numentries-1) {*ptr++=',';if(fmt)*ptr++=' ';*ptr=0;}
cJSON_free(entries[i]);
}
cJSON_free(entries);
*ptr++=']';*ptr++=0;
}
return out;
}
/* Build an object from the text. */
static const char *parse_object(cJSON *item,const char *value)
{
cJSON *child;
if (*value!='{') {ep=value;return 0;} /* not an object! */
item->type=cJSON_Object;
value=skip(value+1);
if (*value=='}') return value+1; /* empty array. */
item->child=child=cJSON_New_Item();
if (!item->child) return 0;
value=skip(parse_string(child,skip(value)));
if (!value) return 0;
child->string=child->valuestring;child->valuestring=0;
if (*value!=':') {ep=value;return 0;} /* fail! */
value=skip(parse_value(child,skip(value+1))); /* skip any spacing, get the value. */
if (!value) return 0;
while (*value==',')
{
cJSON *new_item;
if (!(new_item=cJSON_New_Item())) return 0; /* memory fail */
child->next=new_item;new_item->prev=child;child=new_item;
value=skip(parse_string(child,skip(value+1)));
if (!value) return 0;
child->string=child->valuestring;child->valuestring=0;
if (*value!=':') {ep=value;return 0;} /* fail! */
value=skip(parse_value(child,skip(value+1))); /* skip any spacing, get the value. */
if (!value) return 0;
}
if (*value=='}') return value+1; /* end of array */
ep=value;return 0; /* malformed. */
}
/* Render an object to text. */
static char *print_object(cJSON *item,int depth,int fmt,printbuffer *p)
{
char **entries=0,**names=0;
char *out=0,*ptr,*ret,*str;int len=7,i=0,j;
cJSON *child=item->child;
int numentries=0,fail=0;
size_t tmplen=0;
/* Count the number of entries. */
while (child) numentries++,child=child->next;
/* Explicitly handle empty object case */
if (!numentries)
{
if (p) out=ensure(p,fmt?depth+4:3);
else out=(char*)cJSON_malloc(fmt?depth+4:3);
if (!out) return 0;
ptr=out;*ptr++='{';
if (fmt) {*ptr++='\n';for (i=0;i<depth-1;i++) *ptr++='\t';}
*ptr++='}';*ptr++=0;
return out;
}
if (p)
{
/* Compose the output: */
i=p->offset;
len=fmt?2:1; ptr=ensure(p,len+1); if (!ptr) return 0;
*ptr++='{'; if (fmt) *ptr++='\n'; *ptr=0; p->offset+=len;
child=item->child;depth++;
while (child)
{
if (fmt)
{
ptr=ensure(p,depth); if (!ptr) return 0;
for (j=0;j<depth;j++) *ptr++='\t';
p->offset+=depth;
}
print_string_ptr(child->string,p);
p->offset=update(p);
len=fmt?2:1;
ptr=ensure(p,len); if (!ptr) return 0;
*ptr++=':';if (fmt) *ptr++='\t';
p->offset+=len;
print_value(child,depth,fmt,p);
p->offset=update(p);
len=(fmt?1:0)+(child->next?1:0);
ptr=ensure(p,len+1); if (!ptr) return 0;
if (child->next) *ptr++=',';
if (fmt) *ptr++='\n';*ptr=0;
p->offset+=len;
child=child->next;
}
ptr=ensure(p,fmt?(depth+1):2); if (!ptr) return 0;
if (fmt) for (i=0;i<depth-1;i++) *ptr++='\t';
*ptr++='}';*ptr=0;
out=(p->buffer)+i;
}
else
{
/* Allocate space for the names and the objects */
entries=(char**)cJSON_malloc(numentries*sizeof(char*));
if (!entries) return 0;
names=(char**)cJSON_malloc(numentries*sizeof(char*));
if (!names) {cJSON_free(entries);return 0;}
memset(entries,0,sizeof(char*)*numentries);
memset(names,0,sizeof(char*)*numentries);
/* Collect all the results into our arrays: */
child=item->child;depth++;if (fmt) len+=depth;
while (child)
{
names[i]=str=print_string_ptr(child->string,0);
entries[i++]=ret=print_value(child,depth,fmt,0);
if (str && ret) len+=strlen(ret)+strlen(str)+2+(fmt?2+depth:0); else fail=1;
child=child->next;
}
/* Try to allocate the output string */
if (!fail) out=(char*)cJSON_malloc(len);
if (!out) fail=1;
/* Handle failure */
if (fail)
{
for (i=0;i<numentries;i++) {if (names[i]) cJSON_free(names[i]);if (entries[i]) cJSON_free(entries[i]);}
cJSON_free(names);cJSON_free(entries);
return 0;
}
/* Compose the output: */
*out='{';ptr=out+1;if (fmt)*ptr++='\n';*ptr=0;
for (i=0;i<numentries;i++)
{
if (fmt) for (j=0;j<depth;j++) *ptr++='\t';
tmplen=strlen(names[i]);memcpy(ptr,names[i],tmplen);ptr+=tmplen;
*ptr++=':';if (fmt) *ptr++='\t';
strcpy(ptr,entries[i]);ptr+=strlen(entries[i]);
if (i!=numentries-1) *ptr++=',';
if (fmt) *ptr++='\n';*ptr=0;
cJSON_free(names[i]);cJSON_free(entries[i]);
}
cJSON_free(names);cJSON_free(entries);
if (fmt) for (i=0;i<depth-1;i++) *ptr++='\t';
*ptr++='}';*ptr++=0;
}
return out;
}
/* Get Array size/item / object item. */
int cJSON_GetArraySize(cJSON *array) {cJSON *c=array->child;int i=0;while(c)i++,c=c->next;return i;}
cJSON *cJSON_GetArrayItem(cJSON *array,int item) {cJSON *c=array->child; while (c && item>0) item--,c=c->next; return c;}
cJSON *cJSON_GetObjectItem(cJSON *object,const char *string) {cJSON *c=object->child; while (c && cJSON_strcasecmp(c->string,string)) c=c->next; return c;}
/* Utility for array list handling. */
static void suffix_object(cJSON *prev,cJSON *item) {prev->next=item;item->prev=prev;}
/* Utility for handling references. */
static cJSON *create_reference(cJSON *item) {cJSON *ref=cJSON_New_Item();if (!ref) return 0;memcpy(ref,item,sizeof(cJSON));ref->string=0;ref->type|=cJSON_IsReference;ref->next=ref->prev=0;return ref;}
/* Add item to array/object. */
void cJSON_AddItemToArray(cJSON *array, cJSON *item) {cJSON *c=array->child;if (!item) return; if (!c) {array->child=item;} else {while (c && c->next) c=c->next; suffix_object(c,item);}}
void cJSON_AddItemToObject(cJSON *object,const char *string,cJSON *item) {if (!item) return; if (item->string) cJSON_free(item->string);item->string=cJSON_strdup(string);cJSON_AddItemToArray(object,item);}
void cJSON_AddItemToObjectCS(cJSON *object,const char *string,cJSON *item) {if (!item) return; if (!(item->type&cJSON_StringIsConst) && item->string) cJSON_free(item->string);item->string=(char*)string;item->type|=cJSON_StringIsConst;cJSON_AddItemToArray(object,item);}
void cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item) {cJSON_AddItemToArray(array,create_reference(item));}
void cJSON_AddItemReferenceToObject(cJSON *object,const char *string,cJSON *item) {cJSON_AddItemToObject(object,string,create_reference(item));}
cJSON *cJSON_DetachItemFromArray(cJSON *array,int which) {cJSON *c=array->child;while (c && which>0) c=c->next,which--;if (!c) return 0;
if (c->prev) c->prev->next=c->next;if (c->next) c->next->prev=c->prev;if (c==array->child) array->child=c->next;c->prev=c->next=0;return c;}
void cJSON_DeleteItemFromArray(cJSON *array,int which) {cJSON_Delete(cJSON_DetachItemFromArray(array,which));}
cJSON *cJSON_DetachItemFromObject(cJSON *object,const char *string) {int i=0;cJSON *c=object->child;while (c && cJSON_strcasecmp(c->string,string)) i++,c=c->next;if (c) return cJSON_DetachItemFromArray(object,i);return 0;}
void cJSON_DeleteItemFromObject(cJSON *object,const char *string) {cJSON_Delete(cJSON_DetachItemFromObject(object,string));}
/* Replace array/object items with new ones. */
void cJSON_InsertItemInArray(cJSON *array,int which,cJSON *newitem) {cJSON *c=array->child;while (c && which>0) c=c->next,which--;if (!c) {cJSON_AddItemToArray(array,newitem);return;}
newitem->next=c;newitem->prev=c->prev;c->prev=newitem;if (c==array->child) array->child=newitem; else newitem->prev->next=newitem;}
void cJSON_ReplaceItemInArray(cJSON *array,int which,cJSON *newitem) {cJSON *c=array->child;while (c && which>0) c=c->next,which--;if (!c) return;
newitem->next=c->next;newitem->prev=c->prev;if (newitem->next) newitem->next->prev=newitem;
if (c==array->child) array->child=newitem; else newitem->prev->next=newitem;c->next=c->prev=0;cJSON_Delete(c);}
void cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem){int i=0;cJSON *c=object->child;while(c && cJSON_strcasecmp(c->string,string))i++,c=c->next;if(c){newitem->string=cJSON_strdup(string);cJSON_ReplaceItemInArray(object,i,newitem);}}
/* Create basic types: */
cJSON *cJSON_CreateNull(void) {cJSON *item=cJSON_New_Item();if(item)item->type=cJSON_NULL;return item;}
cJSON *cJSON_CreateTrue(void) {cJSON *item=cJSON_New_Item();if(item)item->type=cJSON_True;return item;}
cJSON *cJSON_CreateFalse(void) {cJSON *item=cJSON_New_Item();if(item)item->type=cJSON_False;return item;}
cJSON *cJSON_CreateBool(int b) {cJSON *item=cJSON_New_Item();if(item)item->type=b?cJSON_True:cJSON_False;return item;}
cJSON *cJSON_CreateNumber(double num) {cJSON *item=cJSON_New_Item();if(item){item->type=cJSON_Number;item->valuedouble=num;item->valueint=(int)num;}return item;}
cJSON *cJSON_CreateString(const char *string) {cJSON *item=cJSON_New_Item();if(item){item->type=cJSON_String;item->valuestring=cJSON_strdup(string);}return item;}
cJSON *cJSON_CreateArray(void) {cJSON *item=cJSON_New_Item();if(item)item->type=cJSON_Array;return item;}
cJSON *cJSON_CreateObject(void) {cJSON *item=cJSON_New_Item();if(item)item->type=cJSON_Object;return item;}
/* Create Arrays: */
cJSON *cJSON_CreateIntArray(const int *numbers,int count) {int i;cJSON *n=0,*p=0,*a=cJSON_CreateArray();for(i=0;a && i<count;i++){n=cJSON_CreateNumber(numbers[i]);if(!i)a->child=n;else suffix_object(p,n);p=n;}return a;}
cJSON *cJSON_CreateFloatArray(const float *numbers,int count) {int i;cJSON *n=0,*p=0,*a=cJSON_CreateArray();for(i=0;a && i<count;i++){n=cJSON_CreateNumber(numbers[i]);if(!i)a->child=n;else suffix_object(p,n);p=n;}return a;}
cJSON *cJSON_CreateDoubleArray(const double *numbers,int count) {int i;cJSON *n=0,*p=0,*a=cJSON_CreateArray();for(i=0;a && i<count;i++){n=cJSON_CreateNumber(numbers[i]);if(!i)a->child=n;else suffix_object(p,n);p=n;}return a;}
cJSON *cJSON_CreateStringArray(const char **strings,int count) {int i;cJSON *n=0,*p=0,*a=cJSON_CreateArray();for(i=0;a && i<count;i++){n=cJSON_CreateString(strings[i]);if(!i)a->child=n;else suffix_object(p,n);p=n;}return a;}
/* Duplication */
cJSON *cJSON_Duplicate(cJSON *item,int recurse)
{
cJSON *newitem,*cptr,*nptr=0,*newchild;
/* Bail on bad ptr */
if (!item) return 0;
/* Create new item */
newitem=cJSON_New_Item();
if (!newitem) return 0;
/* Copy over all vars */
newitem->type=item->type&(~cJSON_IsReference),newitem->valueint=item->valueint,newitem->valuedouble=item->valuedouble;
if (item->valuestring) {newitem->valuestring=cJSON_strdup(item->valuestring); if (!newitem->valuestring) {cJSON_Delete(newitem);return 0;}}
if (item->string) {newitem->string=cJSON_strdup(item->string); if (!newitem->string) {cJSON_Delete(newitem);return 0;}}
/* If non-recursive, then we're done! */
if (!recurse) return newitem;
/* Walk the ->next chain for the child. */
cptr=item->child;
while (cptr)
{
newchild=cJSON_Duplicate(cptr,1); /* Duplicate (with recurse) each item in the ->next chain */
if (!newchild) {cJSON_Delete(newitem);return 0;}
if (nptr) {nptr->next=newchild,newchild->prev=nptr;nptr=newchild;} /* If newitem->child already set, then crosswire ->prev and ->next and move on */
else {newitem->child=newchild;nptr=newchild;} /* Set newitem->child and move to it */
cptr=cptr->next;
}
return newitem;
}
void cJSON_Minify(char *json)
{
char *into=json;
while (*json)
{
if (*json==' ') json++;
else if (*json=='\t') json++; /* Whitespace characters. */
else if (*json=='\r') json++;
else if (*json=='\n') json++;
else if (*json=='/' && json[1]=='/') while (*json && *json!='\n') json++; /* double-slash comments, to end of line. */
else if (*json=='/' && json[1]=='*') {while (*json && !(*json=='*' && json[1]=='/')) json++;json+=2;} /* multiline comments. */
else if (*json=='\"'){*into++=*json++;while (*json && *json!='\"'){if (*json=='\\') *into++=*json++;*into++=*json++;}*into++=*json++;} /* string literals, which are \" sensitive. */
else *into++=*json++; /* All other characters. */
}
*into=0; /* and null-terminate. */
}

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/*
Copyright (c) 2009 Dave Gamble
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#ifndef cJSON__h
#define cJSON__h
#include <stdlib.h>
#ifdef __cplusplus
extern "C"
{
#endif
/* cJSON Types: */
#define cJSON_False 0
#define cJSON_True 1
#define cJSON_NULL 2
#define cJSON_Number 3
#define cJSON_String 4
#define cJSON_Array 5
#define cJSON_Object 6
#define cJSON_IsReference 256
#define cJSON_StringIsConst 512
typedef void *(*malloc_fnxx)(size_t sz);
typedef void (*free_fnxx)(void *ptr);
/* The cJSON structure: */
typedef struct cJSON {
struct cJSON *next,*prev; /* next/prev allow you to walk array/object chains. Alternatively, use GetArraySize/GetArrayItem/GetObjectItem */
struct cJSON *child; /* An array or object item will have a child pointer pointing to a chain of the items in the array/object. */
int type; /* The type of the item, as above. */
char *valuestring; /* The item's string, if type==cJSON_String */
int valueint; /* The item's number, if type==cJSON_Number */
double valuedouble; /* The item's number, if type==cJSON_Number */
char *string; /* The item's name string, if this item is the child of, or is in the list of subitems of an object. */
} cJSON;
typedef struct cJSON_Hooks {
malloc_fnxx malloc_fn;
free_fnxx free_fn;
} cJSON_Hooks;
/* Supply malloc, realloc and free functions to cJSON */
extern void cJSON_InitHooks(cJSON_Hooks* hooks);
/* Supply a block of JSON, and this returns a cJSON object you can interrogate. Call cJSON_Delete when finished. */
extern cJSON *cJSON_Parse(const char *value);
/* Render a cJSON entity to text for transfer/storage. Free the char* when finished. */
extern char *cJSON_Print(cJSON *item);
/* Render a cJSON entity to text for transfer/storage without any formatting. Free the char* when finished. */
extern char *cJSON_PrintUnformatted(cJSON *item);
/* Render a cJSON entity to text using a buffered strategy. prebuffer is a guess at the final size. guessing well reduces reallocation. fmt=0 gives unformatted, =1 gives formatted */
extern char *cJSON_PrintBuffered(cJSON *item,int prebuffer,int fmt);
/* Delete a cJSON entity and all subentities. */
extern void cJSON_Delete(cJSON *c);
/* Returns the number of items in an array (or object). */
extern int cJSON_GetArraySize(cJSON *array);
/* Retrieve item number "item" from array "array". Returns NULL if unsuccessful. */
extern cJSON *cJSON_GetArrayItem(cJSON *array,int item);
/* Get item "string" from object. Case insensitive. */
extern cJSON *cJSON_GetObjectItem(cJSON *object,const char *string);
/* For analysing failed parses. This returns a pointer to the parse error. You'll probably need to look a few chars back to make sense of it. Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds. */
extern const char *cJSON_GetErrorPtr(void);
/* These calls create a cJSON item of the appropriate type. */
extern cJSON *cJSON_CreateNull(void);
extern cJSON *cJSON_CreateTrue(void);
extern cJSON *cJSON_CreateFalse(void);
extern cJSON *cJSON_CreateBool(int b);
extern cJSON *cJSON_CreateNumber(double num);
extern cJSON *cJSON_CreateString(const char *string);
extern cJSON *cJSON_CreateArray(void);
extern cJSON *cJSON_CreateObject(void);
/* These utilities create an Array of count items. */
extern cJSON *cJSON_CreateIntArray(const int *numbers,int count);
extern cJSON *cJSON_CreateFloatArray(const float *numbers,int count);
extern cJSON *cJSON_CreateDoubleArray(const double *numbers,int count);
extern cJSON *cJSON_CreateStringArray(const char **strings,int count);
/* Append item to the specified array/object. */
extern void cJSON_AddItemToArray(cJSON *array, cJSON *item);
extern void cJSON_AddItemToObject(cJSON *object,const char *string,cJSON *item);
extern void cJSON_AddItemToObjectCS(cJSON *object,const char *string,cJSON *item); /* Use this when string is definitely const (i.e. a literal, or as good as), and will definitely survive the cJSON object */
/* Append reference to item to the specified array/object. Use this when you want to add an existing cJSON to a new cJSON, but don't want to corrupt your existing cJSON. */
extern void cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
extern void cJSON_AddItemReferenceToObject(cJSON *object,const char *string,cJSON *item);
/* Remove/Detatch items from Arrays/Objects. */
extern cJSON *cJSON_DetachItemFromArray(cJSON *array,int which);
extern void cJSON_DeleteItemFromArray(cJSON *array,int which);
extern cJSON *cJSON_DetachItemFromObject(cJSON *object,const char *string);
extern void cJSON_DeleteItemFromObject(cJSON *object,const char *string);
/* Update array items. */
extern void cJSON_InsertItemInArray(cJSON *array,int which,cJSON *newitem); /* Shifts pre-existing items to the right. */
extern void cJSON_ReplaceItemInArray(cJSON *array,int which,cJSON *newitem);
extern void cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem);
/* Duplicate a cJSON item */
extern cJSON *cJSON_Duplicate(cJSON *item,int recurse);
/* Duplicate will create a new, identical cJSON item to the one you pass, in new memory that will
need to be released. With recurse!=0, it will duplicate any children connected to the item.
The item->next and ->prev pointers are always zero on return from Duplicate. */
/* ParseWithOpts allows you to require (and check) that the JSON is null terminated, and to retrieve the pointer to the final byte parsed. */
extern cJSON *cJSON_ParseWithOpts(const char *value,const char **return_parse_end,int require_null_terminated);
extern void cJSON_Minify(char *json);
// convert e681a2 to \u6062, call 'free' to free the returned value
extern char* cJSON_utf8_2_unic(const char* utf8);
/* Macros for creating things quickly. */
#define cJSON_AddNullToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateNull())
#define cJSON_AddTrueToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateTrue())
#define cJSON_AddFalseToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateFalse())
#define cJSON_AddBoolToObject(object,name,b) cJSON_AddItemToObject(object, name, cJSON_CreateBool(b))
#define cJSON_AddNumberToObject(object,name,n) cJSON_AddItemToObject(object, name, cJSON_CreateNumber(n))
#define cJSON_AddStringToObject(object,name,s) cJSON_AddItemToObject(object, name, cJSON_CreateString(s))
/* When assigning an integer value, it needs to be propagated to valuedouble too. */
#define cJSON_SetIntValue(object,val) ((object)?(object)->valueint=(object)->valuedouble=(val):(val))
#define cJSON_SetNumberValue(object,val) ((object)?(object)->valueint=(object)->valuedouble=(val):(val))
#ifdef __cplusplus
}
#endif
#endif

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#include "json.h"
#include "cJSON.h"
#include <stdlib.h>
#include <string.h>
namespace special_char_trans
{
struct
{
const char* writedown_text;
char readable_char;
}transferred_chars[] = { { "\\\"", '\"' }
, { "\\'", '\'' }
, { "\\a", '\a' }
, { "\\b", '\b' }
, { "\\f", '\f' }
, { "\\n", '\n' }
, { "\\r", '\r' }
, { "\\t", '\t' }
, { "\\v", '\v' }
// , { "\\?", '\?' }
, { "\\\\", '\\' }
, { "\\/", '/' }
// , { "\\0", '\0' }
};
void to_writedown(std::string& str)
{
std::string trans(str);
const char* ptr = trans.c_str();
str.clear();
while (*ptr)
{
bool rep = false;
if (*ptr == '\\')
{
if (ptr[1] == '\\')
{
str += "\\\\";
ptr++;
rep = true;
}
else if( ptr[1] == '/' ||
ptr[1] == 'a' ||
ptr[1] == 'b' ||
ptr[1] == 'f' ||
ptr[1] == 'n' ||
ptr[1] == 'r' ||
ptr[1] == 't' ||
ptr[1] == 'u' ||
ptr[1] == 'v')
{
str += "\\";
ptr++;
}
else
{
str += "\\\\";
rep = true;
}
}
else
{
for (size_t i = 0; i < sizeof(transferred_chars) / sizeof(transferred_chars[0]); ++i)
{
if (*ptr == transferred_chars[i].readable_char)
{
str += transferred_chars[i].writedown_text;
rep = true;
break;
}
}
}
if (!rep)
str.append(1, *ptr);
ptr++;
}
}
}
json::json(char* json_txt) : type_(VAL_TYPE_OBJECT), key_(""), strval_(""), cur_child_(-1)
{
simple_val_.dval = .0f;
if(json_txt)
attach_text(json_txt);
}
json::json(const char* key, bool val) : type_(VAL_TYPE_BOOL), key_(key ? key : ""), strval_(""), cur_child_(-1)
{
simple_val_.bval = val;
}
json::json(const char* key, int val) : type_(VAL_TYPE_INT), key_(key ? key : ""), strval_(""), cur_child_(-1)
{
simple_val_.nval = val;
}
json::json(const char* key, double val) : type_(VAL_TYPE_FLOAT), key_(key ? key : ""), strval_(""), cur_child_(-1)
{
simple_val_.dval = val;
}
json::json(const char* key, const char* val) : type_(VAL_TYPE_STRING), key_(key ? key : ""), strval_(val ? val : ""), cur_child_(-1)
{}
json::~json()
{
clear();
}
std::string json::object_key(json* jsn)
{
return "\"" + jsn->key() + "\":";
}
std::string json::array_key(json* jsn)
{
return "";
}
void json::from_cjson(cJSON* cj)
{
key_ = cj && cj->string ? cj->string : "";
while (cj)
{
json* child = nullptr;
if (cj->type == cJSON_True)
{
child = new json(cj->string, true);
}
else if(cj->type == cJSON_False)
{
child = new json(cj->string, false);
}
else if (cj->type == cJSON_Number)
{
if (cj->valuedouble - (int)cj->valuedouble < .00001)
{
child = new json(cj->string, cj->valueint);
}
else
{
child = new json(cj->string, cj->valuedouble);
}
}
else if (cj->type == cJSON_String)
{
child = new json(cj->string, cj->valuestring);
}
else if (cj->type == cJSON_Object || cj->type == cJSON_Array)
{
child = new json();
child->from_cjson(cj->child);
child->key_ = cj->string ? cj->string : "";
}
arr_val_.push_back(child);
cj = cj->next;
}
if (arr_val_.size() == 1 && arr_val_[0]->arr_val_.size() == 0)
{
json* child = arr_val_[0];
if (!child->key_.empty()) // array
{
arr_val_.clear();
type_ = child->type_;
key_ = child->key_;
simple_val_.dval = child->simple_val_.dval;
strval_ = child->strval_;
for (auto& v : child->arr_val_)
arr_val_.push_back(v);
child->arr_val_.clear();
child->release();
}
}
if (arr_val_.size())
{
type_ = arr_val_[0]->key().empty() ? VAL_TYPE_ARRAY : VAL_TYPE_OBJECT;
}
}
json* json::find_child(const char* key, bool remove)
{
json* ret = nullptr;
if (type_ == VAL_TYPE_OBJECT)
{
for (size_t i = 0; i < arr_val_.size(); ++i)
{
if (arr_val_[i]->key() == key)
{
ret = arr_val_[i];
if (remove)
arr_val_.erase(arr_val_.begin() + i);
else
ret->add_ref();
break;
}
}
}
return ret;
}
bool json::attach_text(char* json_txt)
{
clear();
cJSON* jsn = cJSON_Parse(json_txt);
if (jsn)
{
char *text = cJSON_Print(jsn);
if (text)
free(text);
from_cjson(jsn->child);
cJSON_Delete(jsn);
return true;
}
return false;
}
void json::clear(bool as_array)
{
if (type_ == VAL_TYPE_ARRAY || type_ == VAL_TYPE_OBJECT)
{
for (auto& v : arr_val_)
v->release();
}
type_ = as_array ? VAL_TYPE_ARRAY : VAL_TYPE_OBJECT;
simple_val_.dval = .0f;
key_ = "";
strval_ = "";
arr_val_.clear();
cur_child_ = -1;
}
std::string json::to_string(void)
{
if (type_ == VAL_TYPE_NULL)
return "";
if (type_ == VAL_TYPE_BOOL)
return (simple_val_.bval ? "true" : "false");
if (type_ == VAL_TYPE_INT)
return std::to_string(simple_val_.nval);
if (type_ == VAL_TYPE_FLOAT)
return std::to_string(simple_val_.dval);
if (type_ == VAL_TYPE_STRING)
{
char* u = cJSON_utf8_2_unic(strval_.c_str());
std::string r(u);
free(u);
special_char_trans::to_writedown(r);
return "\"" + r + "\"";
}
std::string(*k)(json*) = type_ == VAL_TYPE_OBJECT ? json::object_key : json::array_key;
std::string str(type_ == VAL_TYPE_OBJECT ? "{" : "[");
if (arr_val_.size())
{
str += k(arr_val_[0]) + arr_val_[0]->to_string();
for(size_t i = 1; i < arr_val_.size(); ++i)
str += "," + k(arr_val_[i]) + arr_val_[i]->to_string();
}
str += type_ == VAL_TYPE_OBJECT ? "}" : "]";
return str;
}
std::string& json::key(void)
{
return key_;
}
bool json::is_array(void)
{
return type_ == VAL_TYPE_ARRAY;
}
bool json::is_leaf_node(void)
{
return type_ == VAL_TYPE_BOOL ||
type_ == VAL_TYPE_INT ||
type_ == VAL_TYPE_FLOAT ||
type_ == VAL_TYPE_STRING;
}
bool json::get_value(const char* key, bool& val)
{
bool ret = false;
json* child = find_child(key);
if (child)
{
if (child->type_ == VAL_TYPE_BOOL)
{
val = child->simple_val_.bval;
ret = true;
}
child->release();
}
else if (type_ == VAL_TYPE_BOOL && key_ == key)
{
val = simple_val_.bval;
ret = true;
}
return ret;
}
bool json::get_value(const char* key, int& val)
{
bool ret = false;
json* child = find_child(key);
if (child)
{
if (child->type_ == VAL_TYPE_INT)
{
val = child->simple_val_.nval;
ret = true;
}
child->release();
}
else if (type_ == VAL_TYPE_INT && key_ == key)
{
val = simple_val_.nval;
ret = true;
}
return ret;
}
bool json::get_value(const char* key, double& val)
{
bool ret = false;
json* child = find_child(key);
if (child)
{
if (child->type_ == VAL_TYPE_FLOAT)
{
val = child->simple_val_.dval;
ret = true;
}
child->release();
}
else if (type_ == VAL_TYPE_FLOAT && key_ == key)
{
val = simple_val_.dval;
ret = true;
}
return ret;
}
bool json::get_value(const char* key, std::string& val)
{
bool ret = false;
json* child = find_child(key);
if (child)
{
if (child->type_ == VAL_TYPE_STRING)
{
val = child->strval_;
ret = true;
}
child->release();
}
else if (type_ == VAL_TYPE_STRING && key_ == key)
{
val = strval_;
ret = true;
}
return ret;
}
bool json::get_value(const char* key, json*& val)
{
bool ret = false;
json *child = find_child(key);
if (child)
{
if (child->type_ == VAL_TYPE_OBJECT)
{
val = child;
ret = true;
}
else
{
child->release();
}
}
return ret;
}
size_t json::children(void)
{
if (type_ == VAL_TYPE_ARRAY || type_ == VAL_TYPE_OBJECT)
return arr_val_.size();
else
return -1;
}
json* json::child(size_t ind)
{
if (type_ == VAL_TYPE_ARRAY || type_ == VAL_TYPE_OBJECT)
{
if (ind >= 0 && ind < arr_val_.size())
{
arr_val_[ind]->add_ref();
return arr_val_[ind];
}
}
return nullptr;
}
json* json::first_child(void)
{
if (type_ == VAL_TYPE_OBJECT || type_ == VAL_TYPE_ARRAY)
{
cur_child_ = 0;
if (arr_val_.size())
{
arr_val_[0]->add_ref();
return arr_val_[0];
}
}
return nullptr;
}
json* json::next_child(void)
{
if (type_ == VAL_TYPE_OBJECT || type_ == VAL_TYPE_ARRAY)
{
if (++cur_child_ < arr_val_.size())
{
arr_val_[cur_child_]->add_ref();
return arr_val_[cur_child_];
}
}
return nullptr;
}
bool json::set_value(const char* key, bool val)
{
if (type_ != VAL_TYPE_OBJECT)
return false;
json* child = find_child(key);
if (child)
{
child->clear();
child->type_ = VAL_TYPE_BOOL;
child->key() = key ? key : "";
child->simple_val_.bval = val;
child->release();
}
else
{
child = new json(key, val);
arr_val_.push_back(child);
}
return true;
}
bool json::set_value(const char* key, int val)
{
if (type_ != VAL_TYPE_OBJECT)
return false;
json* child = find_child(key);
if (child)
{
child->clear();
child->type_ = VAL_TYPE_INT;
child->key() = key ? key : "";
child->simple_val_.nval = val;
child->release();
}
else
{
child = new json(key, val);
arr_val_.push_back(child);
}
return true;
}
bool json::set_value(const char* key, double val)
{
if (type_ != VAL_TYPE_OBJECT)
return false;
json* child = find_child(key);
if (child)
{
child->clear();
child->type_ = VAL_TYPE_FLOAT;
child->key() = key ? key : "";
child->simple_val_.dval = val;
child->release();
}
else
{
child = new json(key, val);
arr_val_.push_back(child);
}
return true;
}
bool json::set_value(const char* key, std::string val)
{
if (type_ != VAL_TYPE_OBJECT)
return false;
json* child = find_child(key);
if (child)
{
child->clear();
child->type_ = VAL_TYPE_STRING;
child->key() = key ? key : "";
child->strval_ = val;
child->release();
}
else
{
child = new json(key, val.c_str());
arr_val_.push_back(child);
}
return true;
}
bool json::set_value(const char* key, json* val)
{
if (type_ != VAL_TYPE_OBJECT)
return false;
for (size_t i = 0; i < arr_val_.size(); ++i)
{
if (arr_val_[i]->key() == key)
{
arr_val_[i]->release();
arr_val_[i] = val;
val->add_ref();
return true;
}
}
arr_val_.push_back(val);
val->key() = key;
val->add_ref();
return true;
}
json& json::operator+=(bool val)
{
if (type_ == VAL_TYPE_ARRAY)
{
json* child = new json(nullptr, val);
arr_val_.push_back(child);
}
return *this;
}
json& json::operator+=(int val)
{
if (type_ == VAL_TYPE_ARRAY)
{
json* child = new json(nullptr, val);
arr_val_.push_back(child);
}
return *this;
}
json& json::operator+=(double val)
{
if (type_ == VAL_TYPE_ARRAY)
{
json* child = new json(nullptr, val);
arr_val_.push_back(child);
}
return *this;
}
json& json::operator+=(const char* val)
{
if (type_ == VAL_TYPE_ARRAY)
{
json* child = new json(nullptr, val);
arr_val_.push_back(child);
}
return *this;
}
json& json::operator+=(json* val)
{
if (type_ == VAL_TYPE_ARRAY)
{
val->add_ref();
arr_val_.push_back(val);
}
return *this;
}
json& json::operator-=(int ind)
{
remove(ind);
return *this;
}
bool json::remove(const char* key)
{
json* child = find_child(key, true);
if (child)
{
child->release();
return true;
}
else
{
return false;
}
}
bool json::remove(json* child)
{
if (type_ == VAL_TYPE_ARRAY || type_ == VAL_TYPE_OBJECT)
{
for (size_t i = 0; i < arr_val_.size(); ++i)
{
if (arr_val_[i] == child)
{
arr_val_[i]->release();
arr_val_.erase(arr_val_.begin() + i);
return true;
}
}
}
return false;
}
bool json::remove(int ind)
{
bool ret = false;
if (type_ == VAL_TYPE_ARRAY || type_ == VAL_TYPE_OBJECT)
{
if (ind >= 0 && ind < arr_val_.size())
{
arr_val_[ind]->release();
arr_val_.erase(arr_val_.begin() + ind);
ret = true;
}
}
return ret;
}
int json::index(json* child)
{
if (type_ == VAL_TYPE_ARRAY || type_ == VAL_TYPE_OBJECT)
{
for (int i = 0; i < arr_val_.size(); ++i)
{
if (arr_val_[i] == child)
return i;
}
}
return -1;
}
int json::index_move_to(json* child, int ind)
{
int i = index(child);
if (i == -1)
return -1;
arr_val_.erase(arr_val_.begin() + i);
if (ind < 0)
ind = 0;
if (ind > arr_val_.size())
ind = arr_val_.size();
arr_val_.insert(arr_val_.begin() + ind, child);
return ind;
}
bool json::value(bool& val)
{
bool ret = false;
if (is_leaf_node() && type_ == VAL_TYPE_BOOL)
{
val = simple_val_.bval;
ret = true;
}
return ret;
}
bool json::value(int& val)
{
bool ret = false;
if (is_leaf_node() && type_ == VAL_TYPE_INT)
{
val = simple_val_.nval;
ret = true;
}
return ret;
}
bool json::value(double& val)
{
bool ret = false;
if (is_leaf_node() && type_ == VAL_TYPE_FLOAT)
{
val = simple_val_.dval;
ret = true;
}
return ret;
}
bool json::value(std::string& val)
{
bool ret = false;
if (is_leaf_node() && type_ == VAL_TYPE_STRING)
{
val = strval_;
ret = true;
}
return ret;
}
json& json::operator=(bool val)
{
if (is_leaf_node())
{
simple_val_.bval = val;
type_ = VAL_TYPE_BOOL;
}
return *this;
}
json& json::operator=(int val)
{
if (is_leaf_node())
{
simple_val_.nval = val;
type_ = VAL_TYPE_INT;
}
return *this;
}
json& json::operator=(double val)
{
if (is_leaf_node())
{
simple_val_.dval = val;
type_ = VAL_TYPE_FLOAT;
}
return *this;
}
json& json::operator=(const char* val)
{
if (is_leaf_node())
{
strval_ = val ? val : "";
type_ = VAL_TYPE_STRING;
}
return *this;
}

143
common/json/json.h Normal file
View File

@ -0,0 +1,143 @@
#pragma once
#ifdef TEST_JSON
#include <mutex>
class refer
{
volatile int32_t ref_;
std::mutex mutex_;
protected:
refer() : ref_(1)
{}
virtual ~refer()
{}
virtual void on_born(void) {}
virtual void on_dead(void) {}
public:
virtual int32_t add_ref(void)
{
std::lock_guard<std::mutex> l(mutex_);
return ++ref_;
}
virtual int32_t release(void)
{
int32_t ref;
{
std::lock_guard<std::mutex> l(mutex_);
ref = --ref_;
}
if (ref == 0)
{
delete this;
}
return ref;
}
};
#else
#include "../referer.h"
#endif
#include <vector>
#include <string>
struct cJSON;
class json : public refer
{
enum val_type
{
VAL_TYPE_NULL = 0,
VAL_TYPE_BOOL,
VAL_TYPE_INT,
VAL_TYPE_FLOAT,
VAL_TYPE_STRING,
VAL_TYPE_OBJECT,
VAL_TYPE_ARRAY,
};
val_type type_;
std::string key_;
union
{
bool bval;
int nval;
double dval;
}simple_val_;
std::string strval_;
std::vector<json*> arr_val_;
size_t cur_child_;
static std::string object_key(json* jsn);
static std::string array_key(json* jsn);
void from_cjson(cJSON* cj);
json* find_child(const char* key, bool remove = false);
public:
json(char* json_txt = 0);
protected:
json(const char* key, bool val);
json(const char* key, int val);
json(const char* key, double val);
json(const char* key, const char* val);
~json();
public:
bool attach_text(char* json_txt);
void clear(bool as_array = false);
std::string to_string(void);
std::string& key(void);
bool is_array(void);
bool is_leaf_node(void); // whether this object is a leaf node contains final value
bool get_value(const char* key, bool& val);
bool get_value(const char* key, int& val);
bool get_value(const char* key, double& val);
bool get_value(const char* key, std::string& val);
bool get_value(const char* key, json*& val);
size_t children(void); // return children count if was object or array, or else -1 returned
json* child(size_t ind);
json* first_child(void);
json* next_child(void);
// change the item matched 'key', or else add a new item
bool set_value(const char* key, bool val);
bool set_value(const char* key, int val);
bool set_value(const char* key, double val);
bool set_value(const char* key, std::string val);
bool set_value(const char* key, json* val);
// operator+= only for array
json& operator+=(bool val);
json& operator+=(int val);
json& operator+=(double val);
json& operator+=(const char* val);
json& operator+=(json* val);
// remove item
json& operator-=(int ind);
bool remove(const char* key);
bool remove(json* child);
bool remove(int ind);
// position management
int index(json* child);
int index_move_to(json* child, int ind);
// leaf node value ...
bool value(bool& val);
bool value(int& val);
bool value(double& val);
bool value(std::string& val);
json& operator=(bool val);
json& operator=(int val);
json& operator=(double val);
json& operator=(const char* val);
};

56
scanner/main/scanner.cpp
View File

@ -3,6 +3,7 @@
#include "../../common/log_util.h" #include "../../common/log_util.h"
#include "../../common/ipc_wrapper.h" #include "../../common/ipc_wrapper.h"
#include "../../common/json/json.h"
#include "../img_collector/img_collector.h" #include "../img_collector/img_collector.h"
#include "../img_process/img_process.h" #include "../img_process/img_process.h"
#include "../res_monitor/res_monitor.h" #include "../res_monitor/res_monitor.h"
@ -117,7 +118,60 @@ int32_t scanner::dispatch_ipc_message(LPPACK_BASE pack)
} }
else if (pack->cmd == PACK_CMD_SETTING_GET) else if (pack->cmd == PACK_CMD_SETTING_GET)
{ {
size_t len = 0;
char *buf = nullptr;
json *cis = nullptr, *proc = nullptr;
int ret = 0;
std::string cfg("");
if (img_src_->get_config(buf, &len) == ENOMEM)
{
buf = new char[len + 4];
if (img_src_->get_config(buf, &len) == 0)
{
cis = new json(buf);
}
}
ret = img_proc_->get_config(buf, &len);
if(ret == ENOMEM)
{
if (buf)
delete[] buf;
buf = new char[len + 4];
ret = img_proc_->get_config(buf, &len);
}
if (ret == 0)
{
proc = new json(buf);
if (cis)
{
json* child = cis->first_child();
while (child)
{
proc->set_value(child->key().c_str(), child);
child->release();
child = cis->next_child();
}
cis->release();
}
cfg = proc->to_string();
proc->release();
}
else if (cis)
{
cfg = cis->to_string();
cis->release();
}
if (buf)
delete[] buf;
PACK_BASE reply(*pack);
reply.result = cfg.empty() ? ENOENT : 0;
reply.thunk = 0;
reply.total_bytes = cfg.length();
cfg.insert(0, std::string((char*)&reply, sizeof(reply)));
len = cfg.length();
ipc_->write(cfg.c_str(), &len, false);
} }
else if (pack->cmd == PACK_CMD_SETTING_GET_CUR) else if (pack->cmd == PACK_CMD_SETTING_GET_CUR)
{ {
@ -362,6 +416,8 @@ int32_t scanner::on_event(int32_t ev, void* data, size_t data_len)
case SCANNER_EVENT_COLLECTOR_STOPPED: case SCANNER_EVENT_COLLECTOR_STOPPED:
status_ = data_len ? (scanner_status)data_len : SCANNER_STATUS_READY; status_ = data_len ? (scanner_status)data_len : SCANNER_STATUS_READY;
break; break;
case SCANNER_EVENT_IMAGE_PROC_OK:
break;
case SCANNER_EVENT_RESOURCE_LOW_MEM: case SCANNER_EVENT_RESOURCE_LOW_MEM:
case SCANNER_EVENT_RESOURCE_HIGH_CPU: case SCANNER_EVENT_RESOURCE_HIGH_CPU:
if (*(bool*)data) // low mem or high cpu if (*(bool*)data) // low mem or high cpu