Rajath Ramesh
Local copy
Dependencies: C12832_lcd ConfigFile EthernetInterface LM75B MMA7660 MQTTPacket mbed-rtos mbed
Fork of
IBMIoTClientExampleForLPC1768
by 
Sam Danbury
Revision 11:0fa63599f5a0, committed 2014-07-02
- Comitter:
- rajathishere
- Date:
- Wed Jul 02 10:37:56 2014 +0000
- Parent:
- 10:5555250b5ae5
- Child:
- 12:e9ff8869a99d
- Commit message:
- Read blink count from Json
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cJSON.c Wed Jul 02 10:37:56 2014 +0000
@@ -0,0 +1,596 @@
+/*
+ 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 *(*cJSON_malloc)(size_t sz) = malloc;
+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 = malloc;
+ cJSON_free = free;
+ return;
+ }
+
+ cJSON_malloc = (hooks->malloc_fn)?hooks->malloc_fn:malloc;
+ 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->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;
+}
+
+/* Render the number nicely from the given item into a string. */
+static char *print_number(cJSON *item)
+{
+ char *str;
+ double d=item->valuedouble;
+ if (fabs(((double)item->valueint)-d)<=DBL_EPSILON && d<=INT_MAX && d>=INT_MIN)
+ {
+ str=(char*)cJSON_malloc(21); /* 2^64+1 can be represented in 21 chars. */
+ if (str) sprintf(str,"%d",item->valueint);
+ }
+ 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;
+}
+
+/* Render the cstring provided to an escaped version that can be printed. */
+static char *print_string_ptr(const char *str)
+{
+ const char *ptr;char *ptr2,*out;int len=0;unsigned char token;
+
+ if (!str) return cJSON_strdup("");
+ ptr=str;while ((token=*ptr) && ++len) {if (strchr("\"\\\b\f\n\r\t",token)) len++; else if (token<32) len+=5;ptr++;}
+
+ 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) {return print_string_ptr(item->valuestring);}
+
+/* Predeclare these prototypes. */
+static const char *parse_value(cJSON *item,const char *value);
+static char *print_value(cJSON *item,int depth,int fmt);
+static const char *parse_array(cJSON *item,const char *value);
+static char *print_array(cJSON *item,int depth,int fmt);
+static const char *parse_object(cJSON *item,const char *value);
+static char *print_object(cJSON *item,int depth,int fmt);
+
+/* 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);}
+char *cJSON_PrintUnformatted(cJSON *item) {return print_value(item,0,0);}
+
+/* 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)
+{
+ char *out=0;
+ if (!item) return 0;
+ 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);break;
+ case cJSON_String: out=print_string(item);break;
+ case cJSON_Array: out=print_array(item,depth,fmt);break;
+ case cJSON_Object: out=print_object(item,depth,fmt);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)
+{
+ char **entries;
+ char *out=0,*ptr,*ret;int len=5;
+ cJSON *child=item->child;
+ int numentries=0,i=0,fail=0;
+
+ /* How many entries in the array? */
+ while (child) numentries++,child=child->next;
+ /* Explicitly handle numentries==0 */
+ if (!numentries)
+ {
+ out=(char*)cJSON_malloc(3);
+ if (out) strcpy(out,"[]");
+ return out;
+ }
+ /* 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);
+ 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 malloc 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++)
+ {
+ strcpy(ptr,entries[i]);ptr+=strlen(entries[i]);
+ 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)
+{
+ 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;
+ /* Count the number of entries. */
+ while (child) numentries++,child=child->next;
+ /* Explicitly handle empty object case */
+ if (!numentries)
+ {
+ 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;
+ }
+ /* 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);
+ entries[i++]=ret=print_value(child,depth,fmt);
+ 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';
+ strcpy(ptr,names[i]);ptr+=strlen(names[i]);
+ *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_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_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.
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cJSON.h Wed Jul 02 10:37:56 2014 +0000
@@ -0,0 +1,143 @@
+/*
+ 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
+
+#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
+
+/* 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 {
+ void *(*malloc_fn)(size_t sz);
+ void (*free_fn)(void *ptr);
+} 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);
+/* 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);
+/* 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_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);
+
+/* 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))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- a/src/main.cpp Tue Jul 01 19:14:45 2014 +0000
+++ b/src/main.cpp Wed Jul 02 10:37:56 2014 +0000
@@ -19,6 +19,7 @@
#include "MMA7660.h"
#include "C12832_lcd.h"
#include "QuickstartClient.h"
+#include "cJSON.h"
#include <string>
@@ -45,6 +46,7 @@
BusIn Right(p16);
string joystickPos;
void joystickThread(void const *args);
+int getCount(char* message);
//Potentiometer
AnalogIn ain1(p19);
@@ -80,16 +82,29 @@
//QuickstartClient* c = new QuickstartClient(mac);
c = new QuickstartClient(mac);
- (c->mysock).set_blocking(true, 5000);
+ (c->mysock).set_blocking(true, 50000);
int res = MQTTPacket_read(buf, buflen, getdata);
lcd.printf("res, %d\n", res);
+ if ( res == CONNACK)
+ {
+ int connack_rc;
+
+ if (MQTTDeserialize_connack(&connack_rc, buf, buflen) != 1 || connack_rc != 0)
+ {
+ lcd.printf("Unable to connect, return code %d\n", connack_rc);
+ goto exit;
+ }
+ }
+ else
+ {
+ lcd.printf("rc conn, %d\n", res);
+ goto exit;
+ }
int rc = c->subscribe();
- while(res != 9) {
res = MQTTPacket_read(buf, buflen, getdata);
lcd.printf("res, %d\n", res);
wait(2.0);
- }
if (res == SUBACK) /* wait for suback */
{
int submsgid;
@@ -165,9 +180,28 @@
rc = MQTTDeserialize_publish(&dup, &qos, &retained, &msgid, &receivedTopic,
&payload_in, &payloadlen_in, buf, buflen);
lcd.printf("message arrived %s\n", payload_in);
- int count = 2; //default number of blinks
- char num[2];
- //TODO parse request and get count
+ wait(4.0);
+ char message[50];
+ int i =0, charNums = 0;
+ while(*payload_in && charNums <2) {
+ charNums = 0;
+ if(*payload_in == '\'') {
+ charNums++;
+ while(*payload_in != '\'') {
+ message[i] = *payload_in;
+ i++; payload_in++;
+ }
+ charNums++;
+ }
+ payload_in++;
+ }
+ message[i] = '\0';
+ lcd.cls();
+ lcd.locate(0,0);
+ lcd.printf(" Message %s", message);
+ wait(4.0);
+ int count = getCount(payload_in);
+ lcd.printf("Count %d\n", count);
while(count) {
led4 = 1;
wait(0.5);
@@ -177,12 +211,26 @@
}
}
- wait(1.0);
+ wait(4.0);
}
exit:
eth.disconnect();
}
+int getCount(char* message) {
+ cJSON *json;
+ int count = 2;
+ json = cJSON_Parse(message);
+ if (!json) {
+ lcd.printf("Error before: [%s]\n", cJSON_GetErrorPtr());
+ wait(2.0);
+ } else {
+ count = cJSON_GetObjectItem(json, "count")->valueint;
+ cJSON_Delete(json);
+ }
+ return count;
+}
+
void joystickThread(void const *args) {
while (1) {
if (Down)