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libcm/cmPrefs.c

1496 lines
41 KiB
C
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Initial commit
2012-10-30 03:52:39 +00:00
#include "cmPrefix.h"
#include "cmGlobal.h"
#include "cmRpt.h"
#include "cmErr.h"
#include "cmCtx.h"
#include "cmMem.h"
#include "cmMallocDebug.h"
#include "cmLinkedHeap.h"
#include "cmFileSys.h"
#include "cmText.h"
#include "cmJson.h"
#include "cmPrefs.h"
cmPrH_t cmPrNullHandle = cmSTATIC_NULL_HANDLE;
typedef struct cmPrCb_str
{
cmPrefsOnChangeFunc_t cbFunc;
void* cbDataPtr;
struct cmPrCb_str* linkPtr;
} cmPrCb_t;
// Link record used by cmPrNode_t to form the
// path labels for each pref. node.
typedef struct cmPrPath_str
{
const cmChar_t* label;
struct cmPrPath_str* parentPtr;
} cmPrPath_t;
// Every pair in the prefs JSON tree is given a unique id.
// The 'path' chain forms a path of pair labels which names the variable.
typedef struct cmPrNode_str
{
unsigned id; // unique id assigned to this pref node
cmJsonNode_t* nodePtr; // pointer to the JSON value for this pref node
cmPrPath_t* pathPtr; // pointer to the path label chain for this node
struct cmPrNode_str* linkPtr; // link used to form the pref. node chain
} cmPrNode_t;
typedef struct
{
cmErr_t err; //
cmJsonH_t jsH; // json tree
cmLHeapH_t lhH; // linked heap handle
cmChar_t* fn; // default filename
bool dirtyFl; //
cmPrCb_t* cbChainPtr; // callback record linked list
cmPrNode_t* idChainPtr; //
unsigned id; // next JSON node id
cmChar_t* pathBuf;
} cmPr_t;
cmPr_t* _cmPrefsHandleToPtr( cmPrH_t h )
{
assert(h.h != NULL);
return (cmPr_t*)h.h;
}
cmPrNode_t* _cmPrefsIdToNodePtr( cmPr_t* p, unsigned id, bool reportErrFl )
{
if( id == cmInvalidId )
{
cmErrMsg(&p->err,kInvalidIdPrRC,"No preference variables can use the id:%i.",id);
return NULL;
}
cmPrNode_t* np = p->idChainPtr;
for(; np!=NULL; np=np->linkPtr)
if( np->id == id )
return np;
if( reportErrFl )
cmErrMsg(&p->err,kVarNotFoundPrRC,"The preference variable associated with id:%i does not exist.",id);
return NULL;
}
unsigned _cmPrefsCalcNextAvailId( cmPr_t* p )
{
while( _cmPrefsIdToNodePtr( p, p->id, false) != NULL )
++p->id;
return p->id;
}
cmPrNode_t* _cmPrefsCreateNode( cmPr_t* p, const cmJsonNode_t* jsPairNodePtr, cmPrPath_t* parentPathPtr )
{
assert( jsPairNodePtr->typeId == kPairTId );
cmPrNode_t* np = cmLHeapAllocZ( p->lhH, sizeof(cmPrNode_t) );
np->id = cmInvalidId;
np->pathPtr = cmLHeapAllocZ( p->lhH, sizeof(cmPrPath_t) );
np->pathPtr->label = jsPairNodePtr->u.childPtr->u.stringVal;
np->pathPtr->parentPtr = parentPathPtr;
np->nodePtr = jsPairNodePtr->u.childPtr->siblingPtr;
np->linkPtr = p->idChainPtr;
p->idChainPtr = np;
// object and pair nodes cannot be returned as pref values - so do not give them id's
if( cmJsonIsObject(np->nodePtr)==false && cmJsonIsPair(np->nodePtr)==false )
np->id = _cmPrefsCalcNextAvailId(p);
return np;
}
void _cmPrefsBuildIdList( cmPr_t* p, const cmJsonNode_t* jsnPtr, cmPrPath_t* parentPathPtr )
{
assert( jsnPtr != NULL );
if( jsnPtr->typeId == kPairTId )
{
cmPrNode_t* np = _cmPrefsCreateNode(p,jsnPtr,parentPathPtr);
_cmPrefsBuildIdList( p, jsnPtr->u.childPtr->siblingPtr, np->pathPtr );
}
else
if( cmJsonChildCount(jsnPtr) )
{
const cmJsonNode_t* np = jsnPtr->u.childPtr;
for(; np != NULL; np = np->siblingPtr )
_cmPrefsBuildIdList(p,np,parentPathPtr);
}
}
void _cmPrefsInstallCallback( cmPr_t* p, cmPrefsOnChangeFunc_t cbFunc, void* cbDataPtr )
{
cmPrCb_t* nrp = cmLHeapAllocZ( p->lhH, sizeof(cmPrCb_t));
nrp->cbFunc = cbFunc;
nrp->cbDataPtr = cbDataPtr;
cmPrCb_t* cp = p->cbChainPtr;
// if the cb chain is empty ...
if(cp == NULL)
p->cbChainPtr = nrp;// ... make the new cb the first on the chain
else
{
// ... otherwise add the new cb to the end of the cb chain
while( cp->linkPtr != NULL )
cp = cp->linkPtr;
cp->linkPtr = nrp;
}
}
cmPrRC_t _cmPrefsFinalize( cmPr_t* p )
{
cmPrRC_t rc = kOkPrRC;
if( cmLHeapIsValid(p->lhH) )
cmLHeapDestroy(&p->lhH);
if( cmJsonIsValid(p->jsH) )
if( cmJsonFinalize(&p->jsH) != kOkJsRC )
rc = cmErrMsg(&p->err,kJsonFailPrRC,"JSON finalization failed.");
cmMemPtrFree(&p->pathBuf);
cmMemFree(p);
return rc;
}
// Convert 'pathString' to a sequence of zero terminated sub-strings.
// The character string returned from this function must be released with a
// call to cmMemFree()
cmChar_t* _cmPrefsCreatePathStr( const cmChar_t* pathString, int* cnt )
{
assert( pathString != NULL );
// duplicate the path string
cmChar_t* pathStr = cmMemAllocStr(pathString);
int i = 0;
int n = 1;
for(i=0; pathStr[i]; ++i)
if( pathStr[i]=='/' )
{
pathStr[i] = 0;
++n;
}
*cnt = n;
return pathStr;
}
unsigned _cmPrefsId( cmPr_t* p, const cmChar_t* pathStr, bool reportErrFl )
{
int n = 1;
int i;
unsigned retId = cmInvalidId;
cmChar_t* path = _cmPrefsCreatePathStr(pathStr, &n );
const cmChar_t* pathArray[n];
const cmChar_t* cp = path;
// store path parts in reverse order - because this
// is the way the node sees the path
for(i=n-1; i>=0; --i)
{
pathArray[i] = cp;
cp += strlen(cp) + 1;
}
const cmPrNode_t* np = p->idChainPtr;
// go down the id chain
for(; retId==cmInvalidId && np != NULL; np=np->linkPtr)
{
unsigned i = 0;
const cmPrPath_t* pp = np->pathPtr;
// go down the path chain from leaf to root
while( strcmp(pp->label,pathArray[i]) == 0 )
{
++i;
pp = pp->parentPtr;
// if the match is complete
if( i==n && pp==NULL)
{
retId = np->id;
break;
}
}
}
if( retId==cmInvalidId && reportErrFl )
cmErrMsg(&p->err,kVarNotFoundPrRC,"The preference variable '%s' was not found.",pathStr);
cmMemFree(path);
return retId;
}
cmPrNode_t* _cmPrefsPathToNodePtr( cmPr_t* p, const cmChar_t* pathStr, bool reportErrFl )
{
unsigned id;
if((id = _cmPrefsId(p,pathStr,reportErrFl)) == cmInvalidId )
return NULL;
return _cmPrefsIdToNodePtr(p,id, reportErrFl);
}
cmPrRC_t cmPrefsInitialize( cmPrH_t* hp, const cmChar_t* fn, cmPrefsOnChangeFunc_t cbFunc, void* cbDataPtr, cmCtx_t* ctx )
{
cmPrRC_t rc = kOkPrRC;
if((rc = cmPrefsFinalize(hp)) != kOkPrRC)
return rc;
cmPr_t* p = cmMemAllocZ( cmPr_t, 1 );
cmErrSetup(&p->err,&ctx->rpt,"Preferences");
// initialize a linked heap
if( cmLHeapIsValid(p->lhH = cmLHeapCreate(1024,ctx))==false )
{
rc = cmErrMsg(&p->err,kLHeapFailPrRC,"Linked heap initialization failed.");
goto errLabel;
}
// if the preference file exists
if( cmFsIsFile(fn) )
{
// initialize the JSON tree from the preferences file
if( cmJsonInitializeFromFile( &p->jsH, fn, ctx ) != kOkJsRC )
{
rc = cmErrMsg(&p->err,kJsonFailPrRC,"Preferences initialization failed on JSON initialization.");
goto errLabel;
}
// build the id list
_cmPrefsBuildIdList(p, cmJsonRoot(p->jsH), NULL );
}
else // otherwise create an empty JSON tree
{
if( cmJsonInitialize( &p->jsH, ctx ) != kOkJsRC )
{
rc = cmErrMsg(&p->err,kJsonFailPrRC,"An empty JSON tree could not be created.");
goto errLabel;
}
if( cmJsonCreateObject( p->jsH, NULL ) != kOkJsRC )
{
rc = cmErrMsg(&p->err,kJsonFailPrRC,"The JSON root object could not be created.");
goto errLabel;
}
}
// install the callback function
if( cbFunc != NULL )
_cmPrefsInstallCallback(p,cbFunc,cbDataPtr);
// store the file name
p->fn = cmLHeapAllocZ( p->lhH, strlen(fn)+1 );
strcpy(p->fn,fn);
hp->h = p;
errLabel:
if( rc != kOkPrRC )
{
_cmPrefsFinalize(p);
hp-> h = NULL;
}
return rc;
}
cmPrRC_t cmPrefsFinalize( cmPrH_t* hp )
{
cmPrRC_t rc = kOkPrRC;
if( hp==NULL || hp->h == NULL )
return kOkPrRC;
if((rc = _cmPrefsFinalize( _cmPrefsHandleToPtr(*hp))) == kOkPrRC )
return rc;
hp->h = NULL;
return rc;
}
bool cmPrefsIsValid( cmPrH_t h )
{ return h.h != NULL; }
cmPrRC_t cmPrefsRC( cmPrH_t h)
{ return cmErrLastRC(&_cmPrefsHandleToPtr(h)->err); }
cmPrRC_t cmPrefsSetRC( cmPrH_t h, cmPrRC_t rc )
{ return cmErrSetRC(&_cmPrefsHandleToPtr(h)->err,rc); }
cmPrRC_t cmPrefsInstallCallback( cmPrH_t h, cmPrefsOnChangeFunc_t cbFunc, void* cbDataPtr )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
_cmPrefsInstallCallback(p,cbFunc,cbDataPtr);
return kOkPrRC;
}
cmPrRC_t cmPrefsRemoveCallback( cmPrH_t h, cmPrefsOnChangeFunc_t cbFunc )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
cmPrCb_t* cc = p->cbChainPtr;
cmPrCb_t* pc = NULL;
while( cc == NULL )
{
if( cc->cbFunc == cbFunc )
{
if( pc == NULL )
p->cbChainPtr = cc->linkPtr;
else
pc->linkPtr = cc->linkPtr;
break;
}
pc = cc;
cc = cc->linkPtr;
}
if( cc == NULL )
return cmErrMsg(&p->err,kCbNotFoundPrRC,"The callback function %p could not be found.",cbFunc);
return kOkPrRC;
}
unsigned cmPrefsId( cmPrH_t h, const cmChar_t* pathStr, bool reportErrFl )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
return _cmPrefsId(p,pathStr,reportErrFl);
}
unsigned cmPrefsEleCount( cmPrH_t h, unsigned id )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
cmPrNode_t* np = _cmPrefsIdToNodePtr(p,id,true);
if( np == NULL )
return -1;
if( cmJsonIsArray(np->nodePtr) )
return cmJsonChildCount(np->nodePtr);
return 1;
}
void _cmPrefsFormPath( cmPr_t* p, const cmPrNode_t* np )
{
cmPrPath_t* pp = np->pathPtr;
int n = 0;
for(; pp!=NULL; pp=pp->parentPtr)
++n;
const char* pathArray[n];
unsigned i = n-1;
for(pp = np->pathPtr; pp!=NULL; pp=pp->parentPtr,--i)
pathArray[i] = pp->label;
cmMemPtrFree(&p->pathBuf);
for(i=0; i<n; ++i)
{
if( i > 0 )
p->pathBuf = cmTextAppendSS(p->pathBuf,"/");
p->pathBuf = cmTextAppendSS(p->pathBuf,pathArray[i]);
}
}
cmPrRC_t _cmPrefsValue( cmPr_t* p, const cmPrNode_t* np, const cmJsonNode_t* jnp, bool* bvp, int* ivp, double* rvp, const cmChar_t** svp, unsigned retEleCnt )
{
cmJsRC_t jsRC = kOkJsRC;
const char* typeLabel = NULL;
// verify that adequate return space was provided
if( retEleCnt < 1 )
{
_cmPrefsFormPath(p,np);
return cmErrMsg(&p->err,kBufTooSmallPrRC,"No return space was provided for the preference variable '%s' (id:%i).",p->pathBuf,np->id);
}
if( bvp != NULL )
{
jsRC = cmJsonBoolValue(jnp,bvp);
typeLabel = "bool";
}
else
if( ivp != NULL )
{
jsRC = cmJsonIntValue(jnp,ivp);
typeLabel = "int";
}
else
if( rvp != NULL )
{
jsRC = cmJsonRealValue(jnp,rvp);
typeLabel = "real";
}
else
if( svp != NULL )
{
jsRC = cmJsonStringValue(jnp,svp);
typeLabel = "string";
}
else
{
assert(0);
}
if( jsRC != kOkJsRC )
{
_cmPrefsFormPath(p,np);
return cmErrMsg(&p->err,kCvtErrPrRC,"The perferences variable '%s' (id:%i) could not be converted to type '%s'.",p->pathBuf,np->id,typeLabel);
}
return kOkPrRC;
}
cmPrRC_t _cmPrefsGetValue( cmPrH_t h, unsigned id, bool* bvp, int* ivp, double* rvp, const cmChar_t** svp, unsigned* eleCntPtr, unsigned eleIdx )
{
cmPrRC_t rc = kOkPrRC;
cmPr_t* p = _cmPrefsHandleToPtr(h);
cmPrNode_t* np = NULL;
// if no return buffer was given - do nothing
if( *eleCntPtr == 0 )
return kOkPrRC;
// locate the pref node from 'id'
if((np = _cmPrefsIdToNodePtr(p,id,true)) == NULL )
{
rc = cmErrMsg(&p->err,kVarNotFoundPrRC,"No preference variable was found for id:%i.",id);
goto errLabel;
}
// if the requested pref. var is a scalar
if( cmJsonIsArray(np->nodePtr) == false )
{
if((rc = _cmPrefsValue(p,np,np->nodePtr,bvp,ivp,rvp,svp,*eleCntPtr)) == kOkPrRC )
*eleCntPtr = 1;
}
else // the request pref. var. is an array
{
unsigned i = 0;
unsigned n = cmJsonChildCount(np->nodePtr);
// if the entire array was requestedd
if( eleIdx == cmInvalidIdx )
{
// if the return buffer is too small to hold all of the values.
if( *eleCntPtr < n )
{
*eleCntPtr = 0;
_cmPrefsFormPath(p,np);
rc = cmErrMsg(&p->err,kBufTooSmallPrRC,"The return array for the preference variable '%s' (id:%i) is too small to hold '%i elements",p->pathBuf,np->id,n);
goto errLabel;
}
// read each element
for(i=0; i<n; ++i)
{
const cmJsonNode_t* cnp = cmJsonArrayElement(np->nodePtr,i);
if((rc= _cmPrefsValue(p,np,cnp,bvp==NULL?NULL:bvp+i,ivp==NULL?NULL:ivp+i,rvp==NULL?NULL:rvp+i,svp==NULL?NULL:svp+i,1)) != kOkPrRC )
goto errLabel;
}
*eleCntPtr = n;
}
else // a single ele of the array was requested
{
// validate the index
if( eleIdx >= n )
{
_cmPrefsFormPath(p,np);
rc = cmErrMsg(&p->err,kInvalidIndexPrRC,"The index %i is invalid for the variable '%s' of length %i.",eleIdx,p->pathBuf,n);
goto errLabel;
}
// get the json element at array index 'eleIdx'
const cmJsonNode_t* cnp = cmJsonArrayElement(np->nodePtr,eleIdx);
assert(cnp != NULL );
// read the element from the array
if((rc = _cmPrefsValue(p,np,cnp,bvp,ivp,rvp,svp,*eleCntPtr)) == kOkPrRC )
*eleCntPtr = 1;
}
}
errLabel:
if( rc != kOkPrRC )
*eleCntPtr = 0;
return rc;
}
cmPrRC_t cmPrefsGetBool( cmPrH_t h, unsigned id, bool* vp, unsigned* eleCntPtr )
{ return _cmPrefsGetValue(h, id, vp, NULL, NULL, NULL, eleCntPtr, cmInvalidIdx ); }
cmPrRC_t cmPrefsGetInt( cmPrH_t h, unsigned id, int* vp, unsigned* eleCntPtr )
{ return _cmPrefsGetValue(h, id, NULL, vp, NULL, NULL, eleCntPtr, cmInvalidIdx ); }
cmPrRC_t cmPrefsGetReal( cmPrH_t h, unsigned id, double* vp, unsigned* eleCntPtr )
{ return _cmPrefsGetValue(h, id, NULL, NULL, vp, NULL, eleCntPtr, cmInvalidIdx ); }
cmPrRC_t cmPrefsGetString( cmPrH_t h, unsigned id, const cmChar_t** vp, unsigned* eleCntPtr )
{ return _cmPrefsGetValue(h, id, NULL, NULL, NULL, vp, eleCntPtr, cmInvalidIdx ); }
bool cmPrefsBool( cmPrH_t h, unsigned id )
{
bool v = false;
unsigned n = 1;
cmPrefsGetBool(h,id,&v,&n);
return v;
}
unsigned cmPrefsUInt( cmPrH_t h, unsigned id )
{
int v = 0;
unsigned n = 1;
cmPrefsGetInt(h,id,&v,&n);
return (unsigned)v;
}
int cmPrefsInt( cmPrH_t h, unsigned id )
{
int v = 0;
unsigned n = 1;
cmPrefsGetInt(h,id,&v,&n);
return v;
}
float cmPrefsFloat( cmPrH_t h, unsigned id )
{
double v = 0;
unsigned n = 1;
cmPrefsGetReal(h,id,&v,&n);
return (float)v;
}
double cmPrefsReal( cmPrH_t h, unsigned id )
{
double v = 0;
unsigned n = 1;
cmPrefsGetReal(h,id,&v,&n);
return v;
}
const cmChar_t* cmPrefsString( cmPrH_t h, unsigned id )
{
const cmChar_t* v = NULL;
unsigned n = 1;
if( cmPrefsGetString(h,id,&v,&n) == kOkPrRC )
return v==NULL ? "" : v;
return "";
}
bool cmPrefsBoolDef( cmPrH_t h, const cmChar_t* pathStr, bool dfltVal )
{
unsigned id;
if( cmPrefsIsValid(h)==false || (id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return dfltVal;
return cmPrefsBool(h,id);
}
unsigned cmPrefsUIntDef( cmPrH_t h, const cmChar_t* pathStr, unsigned dfltVal )
{
unsigned id;
if( cmPrefsIsValid(h)==false || (id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return dfltVal;
return cmPrefsUInt(h,id);
}
int cmPrefsIntDef( cmPrH_t h, const cmChar_t* pathStr, int dfltVal )
{
unsigned id;
if( cmPrefsIsValid(h)==false || (id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return dfltVal;
return cmPrefsInt(h,id);
}
float cmPrefsFloatDef( cmPrH_t h, const cmChar_t* pathStr, float dfltVal )
{
unsigned id;
if( cmPrefsIsValid(h)==false || (id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return dfltVal;
return cmPrefsFloat(h,id);
}
double cmPrefsRealDef( cmPrH_t h, const cmChar_t* pathStr, double dfltVal )
{
unsigned id;
if( cmPrefsIsValid(h)==false || (id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return dfltVal;
return cmPrefsReal(h,id);
}
const cmChar_t* cmPrefsStringDef( cmPrH_t h, const cmChar_t* pathStr, const cmChar_t* dfltVal )
{
unsigned id;
if( cmPrefsIsValid(h)==false || (id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return dfltVal;
const cmChar_t* v = cmPrefsString(h,id);
return v==NULL || strlen(v)==0 ? dfltVal : v;
}
cmPrRC_t cmPrefsScalarBool( cmPrH_t h, const cmChar_t* pathStr, bool* retValPtr )
{
unsigned id;
if((id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return kVarNotFoundPrRC;
unsigned n = 1;
return cmPrefsGetBool(h,id,retValPtr,&n);
}
cmPrRC_t cmPrefsScalarUInt( cmPrH_t h, const cmChar_t* pathStr, unsigned* retValPtr )
{
unsigned id;
unsigned n = 1;
int v;
cmPrRC_t rc;
if((id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return kVarNotFoundPrRC;
if((rc =cmPrefsGetInt(h,id,&v,&n)) == kOkPrRC )
*retValPtr = v;
return rc;
}
cmPrRC_t cmPrefsScalarInt( cmPrH_t h, const cmChar_t* pathStr, int* retValPtr )
{
unsigned id;
if((id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return kVarNotFoundPrRC;
unsigned n = 1;
return cmPrefsGetInt(h,id,retValPtr,&n);
}
cmPrRC_t cmPrefsScalarFloat( cmPrH_t h, const cmChar_t* pathStr, float* retValPtr )
{
unsigned id;
unsigned n = 1;
double v;
cmPrRC_t rc;
if((id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return kVarNotFoundPrRC;
if((rc =cmPrefsGetReal(h,id,&v,&n)) == kOkPrRC )
*retValPtr = v;
return rc;
}
cmPrRC_t cmPrefsScalarReal( cmPrH_t h, const cmChar_t* pathStr, double* retValPtr )
{
unsigned id;
if((id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return kVarNotFoundPrRC;
unsigned n = 1;
return cmPrefsGetReal(h,id,retValPtr,&n);
}
cmPrRC_t cmPrefsScalarString( cmPrH_t h, const cmChar_t* pathStr, const cmChar_t** retValPtr )
{
unsigned id;
if((id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return kVarNotFoundPrRC;
unsigned n = 1;
return cmPrefsGetString(h,id,retValPtr,&n);
}
unsigned cmPrefsArrayElementCount( cmPrH_t h, unsigned id )
{
cmPrNode_t* np;
cmPr_t* p = _cmPrefsHandleToPtr(h);
// locate the pref node from 'id'
if((np = _cmPrefsIdToNodePtr(p,id,true)) == NULL )
{
cmErrMsg(&p->err,kVarNotFoundPrRC,"No preference variable was found for id:%i.",id);
return cmInvalidCnt;
}
// if the requested pref. var is a scalar
if( cmJsonIsArray(np->nodePtr) )
return cmJsonChildCount(np->nodePtr);
return 0;
}
bool cmPrefsBoolEle( cmPrH_t h, unsigned id, unsigned idx )
{
bool v = false;;
unsigned n = 1;
_cmPrefsGetValue(h,id, &v, NULL, NULL, NULL, &n, idx );
return v;
}
unsigned cmPrefsUIntEle( cmPrH_t h, unsigned id, unsigned idx )
{
int v = 0;
unsigned n = 1;
_cmPrefsGetValue(h,id, NULL, &v, NULL, NULL, &n, idx );
return (unsigned)v;
}
int cmPrefsIntEle( cmPrH_t h, unsigned id, unsigned idx )
{
int v = 0;
unsigned n = 1;
_cmPrefsGetValue(h,id, NULL, &v, NULL, NULL, &n, idx );
return v;
}
float cmPrefsFloatEle( cmPrH_t h, unsigned id, unsigned idx )
{
double v = 0;
unsigned n = 1;
_cmPrefsGetValue(h,id, NULL, NULL, &v, NULL, &n, idx );
return (float)v;
}
double cmPrefsRealEle( cmPrH_t h, unsigned id, unsigned idx )
{
double v = 0;
unsigned n = 1;
_cmPrefsGetValue(h,id, NULL, NULL, &v, NULL, &n, idx );
return v;
}
const cmChar_t* cmPrefsStringEle( cmPrH_t h, unsigned id, unsigned idx )
{
const cmChar_t* v = "";
unsigned n = 1;
if( _cmPrefsGetValue(h,id, NULL, NULL, NULL, &v, &n, idx ) == kOkPrRC )
return v;
return "";
}
cmPrRC_t _cmPrefsSetValue( cmPr_t* p, cmPrNode_t* np, cmJsonNode_t* jnp,const bool* bvp, const int* ivp, const double* rvp, const cmChar_t** svp, bool* deltaFlPtr )
{
cmJsRC_t jsRC = kOkJsRC;
//const cmChar_t* typeLabel;
if( bvp != NULL )
{
bool v;
if((jsRC = cmJsonBoolValue(jnp,&v)) == kOkJsRC )
if( (*deltaFlPtr = (v != *bvp)) )
jsRC = cmJsonSetBool(p->jsH,jnp,*bvp);
//typeLabel = "bool";
}
else
if( ivp != NULL )
{
int v;
if((jsRC = cmJsonIntValue(jnp,&v)) == kOkJsRC )
if( (*deltaFlPtr = (v != *ivp)) )
jsRC = cmJsonSetInt(p->jsH,jnp,*ivp);
//typeLabel = "int";
}
else
if( rvp != NULL )
{
double v;
if((jsRC = cmJsonRealValue(jnp,&v)) == kOkJsRC )
if( (*deltaFlPtr = (v != *rvp)) )
jsRC = cmJsonSetReal(p->jsH,jnp,*rvp);
//typeLabel = "real";
}
else
if( svp != NULL )
{
const cmChar_t* v;
if((jsRC = cmJsonStringValue(jnp,&v)) == kOkJsRC )
{
const cmChar_t* s0 = v ==NULL ? "" : v;
const cmChar_t* s1 = *svp==NULL ? "" : *svp;
if( (*deltaFlPtr = (strcmp(s0,s1)!=0)) )
jsRC = cmJsonSetString(p->jsH,jnp,s1);
}
//typeLabel = "string";
}
else
{
assert(0);
}
if( jsRC != kOkJsRC )
{
_cmPrefsFormPath(p,np);
return cmErrMsg(&p->err,kCvtErrPrRC,"The perferences variable '%s' (id:%i) could not be set.",p->pathBuf,np->id);
}
return kOkPrRC;
}
void _cmPrefsCallback( cmPr_t* p, unsigned id )
{
// notify any listeners that a node has changed values
cmPrCb_t* cbNodePtr = p->cbChainPtr;
for(; cbNodePtr!=NULL; cbNodePtr=cbNodePtr->linkPtr)
{
cmPrH_t h;
h.h = p;
cbNodePtr->cbFunc(h,cbNodePtr->cbDataPtr,id);
}
}
cmPrRC_t _cmPrefsSetValues2( cmPr_t* p, cmPrNode_t* np, const bool* bvp, const int* ivp, const double* rvp, const cmChar_t** svp, const unsigned* eleCntPtr )
{
cmPrRC_t rc = kOkPrRC;
bool deltaFl = false; // set to true if the value of the pref. var. identified by 'id' actually changes.
// a scalar has been passed in and the existing json node is also a scalar
if( cmJsonIsArray(np->nodePtr)== false && *eleCntPtr==1 )
{
rc = _cmPrefsSetValue(p,np,np->nodePtr,bvp,ivp,rvp,svp,&deltaFl);
goto errLabel;
}
// the pref. variable is an array
if( cmJsonIsArray(np->nodePtr) )
{
unsigned i;
unsigned curArrCnt = cmJsonChildCount(np->nodePtr);
unsigned n = cmMin(*eleCntPtr,curArrCnt);
for(i=0; i<n; ++i)
{
cmJsonNode_t* jnp = cmJsonArrayElement(np->nodePtr,i);
bool dfl = false;
if((rc = _cmPrefsSetValue(p,np,jnp,bvp==NULL?NULL:bvp+i,ivp==NULL?NULL:ivp+i,rvp==NULL?NULL:rvp+i,svp==NULL?NULL:svp+i,&dfl)) != kOkPrRC )
return rc;
if( dfl )
deltaFl = true;
}
// if elements should be removed
if( curArrCnt > *eleCntPtr )
{
deltaFl = true; // ele's are being removed so the variable value is changing
for(i=*eleCntPtr; i<curArrCnt; ++i)
{
cmJsonNode_t* jnp = cmJsonArrayElement(np->nodePtr,*eleCntPtr);
assert(jnp!=NULL);
cmJsonRemoveNode(p->jsH,jnp,true);
}
}
// if elements should be added
if( *eleCntPtr > curArrCnt )
{
unsigned typeId = cmInvalidId;
cmJsonNode_t* jnp = NULL;
cmJsonNode_t* snp = curArrCnt==0 ? NULL : cmJsonArrayElement(np->nodePtr,curArrCnt-1);
assert(snp->ownerPtr==np->nodePtr && snp->siblingPtr==NULL);
deltaFl = true; // ele's are being added so the variable value is changing
if( ivp != NULL )
typeId = kIntTId;
else
if( rvp != NULL )
typeId = kRealTId;
else
if( svp != NULL )
typeId = kStringTId;
// for each new array element
for(; i<*eleCntPtr; ++i)
{
if( bvp != NULL )
typeId = bvp[i];
// create the new array element node - the new node is automatically added to the end of the array
if( cmJsonCreate(p->jsH, np->nodePtr, typeId, svp==NULL?NULL:svp[i], ivp==NULL?0:ivp[i], rvp==NULL?0:rvp[i], &jnp ) != kOkJsRC )
{
_cmPrefsFormPath(p,np);
return cmErrMsg(&p->err,kJsonFailPrRC,"Unable to create a value node for '%s' (id=%i).",p->pathBuf,np->id);
}
}
}
errLabel:
if( (rc == kOkPrRC) && deltaFl )
{
_cmPrefsCallback(p, np->id );
// update the global delta flag
p->dirtyFl = true;
}
return rc;
}
_cmPrefsFormPath(p,np);
return cmErrMsg(&p->err,kCvtErrPrRC,"The new preference value could not be converted to the existing preference variable type for '%s' (id=%i).",p->pathBuf,np->id);
}
cmPrRC_t _cmPrefsSetValues( cmPrH_t h, unsigned id, const bool* bvp, const int* ivp, const double* rvp, const cmChar_t** svp, const unsigned* eleCntPtr )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
cmPrNode_t* np;
// locate the pref node
if((np = _cmPrefsIdToNodePtr(p,id,true)) == NULL )
return cmErrMsg(&p->err,kVarNotFoundPrRC,"The variable with id=%i was not found.",id);
return _cmPrefsSetValues2( p, np, bvp, ivp, rvp, svp, eleCntPtr );
}
cmPrRC_t cmPrefsSetBool( cmPrH_t h, unsigned id, const bool* vp, const unsigned* eleCntPtr )
{ return _cmPrefsSetValues(h, id, vp, NULL, NULL, NULL, eleCntPtr ); }
cmPrRC_t cmPrefsSetInt( cmPrH_t h, unsigned id, const int* vp, const unsigned* eleCntPtr )
{ return _cmPrefsSetValues(h, id, NULL, vp, NULL, NULL, eleCntPtr ); }
cmPrRC_t cmPrefsSetReal( cmPrH_t h, unsigned id, const double* vp, const unsigned* eleCntPtr )
{ return _cmPrefsSetValues(h, id, NULL, NULL, vp, NULL, eleCntPtr ); }
cmPrRC_t cmPrefsSetString( cmPrH_t h, unsigned id, const cmChar_t** vp, const unsigned* eleCntPtr )
{ return _cmPrefsSetValues(h, id, NULL, NULL, NULL, vp, eleCntPtr ); }
cmPrRC_t cmPrefsSetScalarBool( cmPrH_t h, const cmChar_t* pathStr, bool val )
{
unsigned id;
unsigned n = 1;
if((id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return kVarNotFoundPrRC;
return cmPrefsSetBool(h,id,&val,&n);
}
cmPrRC_t cmPrefsSetScalarUInt( cmPrH_t h, const cmChar_t* pathStr, unsigned val )
{
unsigned id;
unsigned n = 1;
if((id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return kVarNotFoundPrRC;
int ival = (int)val;
return cmPrefsSetInt(h,id,&ival,&n);
}
cmPrRC_t cmPrefsSetScalarInt( cmPrH_t h, const cmChar_t* pathStr, int val )
{
unsigned id;
unsigned n = 1;
if((id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return kVarNotFoundPrRC;
return cmPrefsSetInt(h,id,&val,&n);
}
cmPrRC_t cmPrefsSetScalarFloat( cmPrH_t h, const cmChar_t* pathStr, float val )
{
unsigned id;
unsigned n = 1;
if((id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return kVarNotFoundPrRC;
double dval = val;
return cmPrefsSetReal(h,id,&dval,&n);
}
cmPrRC_t cmPrefsSetScalarReal( cmPrH_t h, const cmChar_t* pathStr, double val )
{
unsigned id;
unsigned n = 1;
if((id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return kVarNotFoundPrRC;
return cmPrefsSetReal(h,id,&val,&n);
}
cmPrRC_t cmPrefsSetScalarString( cmPrH_t h, const cmChar_t* pathStr, const cmChar_t* val )
{
unsigned id;
unsigned n = 1;
if((id = cmPrefsId(h,pathStr,true)) == cmInvalidId )
return kVarNotFoundPrRC;
return cmPrefsSetString(h,id,&val,&n);
}
bool _cmPrefsValidateNodeType( cmJsonNode_t* np, unsigned jsTypeId, unsigned valCnt )
{
// if we are looking for a scalar node then the type must be jsTypeId
if( valCnt == 1 )
return np->typeId == jsTypeId;
// if we are looking for an array node then the type must be kArrayTId ...
if( np->typeId != kArrayTId )
return false;
unsigned n = cmJsonChildCount(np);
unsigned i = 0;
// ... and all of the array elements must be of type jsTypeId
for(; i<n; ++i)
{
const cmJsonNode_t* cnp = cmJsonArrayElementC(np,i);
assert( cnp != NULL );
if( cnp->typeId != jsTypeId )
return false;
}
return true;
}
//
cmPrRC_t _cmPrefsCreateJsonNode(
cmPr_t* p,
unsigned id, // new variable id
const cmChar_t* pathString, // new variable name
unsigned jsTypeId, // type of new variable
const cmChar_t** strVal, // value of new variable
const double* realVal, //
const int* intVal, //
const bool* boolVal, //
unsigned valCnt, // length of xxxVal[]
bool setFlag ) // true== if same named variable already exists then set the value to xxxVal
{
cmPrRC_t rc = kOkPrRC;
int pathCnt = 0;
cmChar_t* pathStr = _cmPrefsCreatePathStr(pathString,&pathCnt);
const cmChar_t* pathEleStr = pathStr;
cmJsonNode_t* jsnp = cmJsonRoot(p->jsH);
cmJsonNode_t* jsPairNodePtr = NULL;
cmPrNode_t* pnp = NULL; // current pref node pointer
bool existsFl = false; // set if variable already exists
int i;
assert( pathCnt >= 1 );
// for each path element
for(i=0; i<pathCnt; ++i)
{
cmJsonNode_t* tnp = NULL;
// find the child pair node of jsnp named 'pathEleStr'.
if( (tnp = cmJsonNodeMemberValue(jsnp, pathEleStr )) == NULL )
break;
// the located json node must be an object (i<pathCnt-1) or the same type as jsTypeId (i=pathCnt-1)
// This check guarantees that all nodes up to the leaf node are objects and the leaf node matches the created type.
if( !(((i<pathCnt-1) && cmJsonIsObject(tnp)) || ((i==pathCnt-1) && _cmPrefsValidateNodeType(tnp,jsTypeId,valCnt))) )
{
rc = cmErrMsg(&p->err,kNodeCreateFailPrRC,"Node creation for '%s' failed because an existing node with the same name but different type (%i) was found.",pathString,tnp->typeId);
goto errLabel;
}
// assert that the json nodes we are finding form a tree
assert( (tnp->ownerPtr==NULL && jsnp==NULL) || (tnp->ownerPtr!=NULL && tnp->ownerPtr->ownerPtr==jsnp));
jsnp = tnp;
// find the pref node which refers to the located json node
// (we need to track the pnp->pathPtr)
pnp = p->idChainPtr;
for(; pnp != NULL; pnp=pnp->linkPtr)
if( pnp->nodePtr == jsnp )
break;
assert(pnp->pathPtr != NULL);
// advance to the next path segment
pathEleStr += strlen(pathEleStr) + 1;
}
// if i<pathCnt then json nodes must be created to
// if i==pathCnt then a matching variable already exists
if( i==pathCnt )
{
// the reference variable already exists and assignment was requested (setFlag==true).
// but the assignment cannot be made until the 'id' is updated.
existsFl = true;
}
// we have followed 'pathString' to the last node which already
// exists in the JSON tree - now we must new JSON nodes to reflect
// the remaining path elements
for(; i<pathCnt; ++i)
{
// if this is the last element in the path - then it is a pair
if( i==pathCnt-1 )
{
// create a scalar value pair node
if( valCnt == 1 )
{
const char* sv = strVal==NULL ? NULL : *strVal;
double rv = realVal==NULL ? 0.0 : *realVal;
int iv = intVal ==NULL ? 0 : *intVal;
if( boolVal != NULL )
jsTypeId = *boolVal ? kTrueTId : kFalseTId;
if((jsnp = cmJsonInsertPair( p->jsH, jsnp, pathEleStr,jsTypeId, sv, rv, iv )) == NULL )
{
rc = cmErrMsg(&p->err,kInvalidIdPrRC,"Preference node create failed for '%s'",cmStringNullGuard(pathString));
goto errLabel;
}
}
else // create a vector value pair node
{
switch( jsTypeId )
{
case kStringTId: jsnp = cmJsonInsertPairStringArray2(p->jsH, jsnp, pathEleStr, valCnt, strVal); break;
case kRealTId: jsnp = cmJsonInsertPairRealArray2( p->jsH, jsnp, pathEleStr, valCnt, realVal);break;
case kIntTId: jsnp = cmJsonInsertPairIntArray2( p->jsH, jsnp, pathEleStr, valCnt, intVal); break;
case kBoolTId: jsnp = cmJsonInsertPairBoolArray2( p->jsH, jsnp, pathEleStr, valCnt, boolVal ); break;
default:
{
rc = cmErrMsg(&p->err,kInvalidIdPrRC,"Preference node insert failed on '%s' due to invalid type id '%i'.",cmStringNullGuard(pathString),jsTypeId);
goto errLabel;
}
}
}
assert( jsnp != NULL );
jsPairNodePtr = jsnp;
}
else // this is not the last element in the path - create an object node
{
// create the object associated with this new level
if((jsnp = cmJsonInsertPairObject( p->jsH, jsnp, pathEleStr )) == NULL )
{
rc = cmErrMsg(&p->err,kJsonFailPrRC,"Preference node create failed because JSON node create failed on '%s'.",cmStringNullGuard(pathString));
goto errLabel;
}
jsPairNodePtr = jsnp->ownerPtr;
}
// create a pref node to associate with this new level
if((pnp = _cmPrefsCreateNode(p, jsPairNodePtr, pnp->pathPtr )) == NULL )
{
rc = cmErrMsg(&p->err,kNodeCreateFailPrRC,"Creation failed for the '%s' element of the preference node '%s'.",cmStringNullGuard(pathEleStr),cmStringNullGuard(pathString));
goto errLabel;
}
pathEleStr += strlen(pathEleStr) + 1;
}
assert( pnp != NULL );
// if an preference variable 'id' was given then set it here
if( id != cmInvalidId )
{
if( _cmPrefsIdToNodePtr(p, id, false ) != NULL )
cmErrWarnMsg(&p->err,kDuplicateIdPrRC,"The preference variable id '%i' is used by multiple preference variables including '%s'.",cmStringNullGuard(pathString));
pnp->id = id;
}
// if the variable already existed and setFlag==true then update the variable value here
// (note that this cannot occur earlier because the 'id' has not yet been updated
// which might result in the incorrect id being set with the callback function)
if( existsFl && setFlag )
if((rc = _cmPrefsSetValues2(p, pnp, boolVal, intVal, realVal, strVal, &valCnt )) != kOkPrRC )
goto errLabel;
// if a new variable was created then notify the application of the new value
if(existsFl==false)
{
assert(pnp!=NULL);
_cmPrefsCallback(p,pnp->id);
}
errLabel:
cmMemFree(pathStr);
return rc;
}
cmPrRC_t cmPrefsCreateBool( cmPrH_t h, unsigned id, const cmChar_t* pathStr, unsigned flags, bool val )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
bool v = val;
return _cmPrefsCreateJsonNode(p, id, pathStr, kBoolTId, NULL, NULL, NULL, &v, 1, cmIsFlag(flags, kForceValuePrFl) );
}
cmPrRC_t cmPrefsCreateUInt( cmPrH_t h, unsigned id, const cmChar_t* pathStr, unsigned flags, unsigned val )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
int v = val;
return _cmPrefsCreateJsonNode(p, id, pathStr, kIntTId, NULL, NULL, &v, NULL, 1, cmIsFlag(flags, kForceValuePrFl) );
}
cmPrRC_t cmPrefsCreateInt( cmPrH_t h, unsigned id, const cmChar_t* pathStr, unsigned flags, int val )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
int v = val;
return _cmPrefsCreateJsonNode(p, id, pathStr, kIntTId, NULL, NULL, &v, NULL, 1, cmIsFlag(flags, kForceValuePrFl) );
}
cmPrRC_t cmPrefsCreateFloat( cmPrH_t h, unsigned id, const cmChar_t* pathStr, unsigned flags, float val )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
double v = val;
return _cmPrefsCreateJsonNode(p, id, pathStr, kRealTId, NULL, &v, NULL, NULL, 1, cmIsFlag(flags, kForceValuePrFl) );
}
cmPrRC_t cmPrefsCreateReal( cmPrH_t h, unsigned id, const cmChar_t* pathStr, unsigned flags, double val )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
double v = val;
return _cmPrefsCreateJsonNode(p, id, pathStr, kRealTId, NULL, &v,NULL, NULL, 1, cmIsFlag(flags, kForceValuePrFl) );
}
cmPrRC_t cmPrefsCreateString( cmPrH_t h, unsigned id, const cmChar_t* pathStr, unsigned flags, const cmChar_t* val )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
const cmChar_t* v = val;
return _cmPrefsCreateJsonNode(p, id, pathStr, kStringTId, &v, NULL, NULL, NULL, 1, cmIsFlag(flags,kForceValuePrFl) );
}
cmPrRC_t cmPrefsCreateBoolArray( cmPrH_t h, unsigned id, const cmChar_t* pathStr, unsigned flags, const bool* val, unsigned eleCnt )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
return _cmPrefsCreateJsonNode(p, id, pathStr, kBoolTId, NULL, NULL, NULL, val, eleCnt, cmIsFlag(flags, kForceValuePrFl) );
}
cmPrRC_t cmPrefsCreateUIntArray( cmPrH_t h, unsigned id, const cmChar_t* pathStr, unsigned flags, const unsigned* val, unsigned eleCnt )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
return _cmPrefsCreateJsonNode(p, id, pathStr, kIntTId, NULL, NULL, (int*)val, NULL, eleCnt, cmIsFlag(flags, kForceValuePrFl) );
}
cmPrRC_t cmPrefsCreateIntArray( cmPrH_t h, unsigned id, const cmChar_t* pathStr, unsigned flags, const int* val, unsigned eleCnt )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
return _cmPrefsCreateJsonNode(p, id, pathStr, kIntTId, NULL, NULL, val, NULL, eleCnt, cmIsFlag(flags, kForceValuePrFl) );
}
cmPrRC_t cmPrefsCreateFloatArray( cmPrH_t h, unsigned id, const cmChar_t* pathStr, unsigned flags, const float* val, unsigned eleCnt )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
double* a = cmMemAlloc(double,eleCnt);
unsigned i;
for(i=0; i<eleCnt; ++i)
a[i] = val[i];
cmPrRC_t rc = _cmPrefsCreateJsonNode(p, id, pathStr, kRealTId, NULL, a, NULL, NULL, eleCnt, cmIsFlag(flags, kForceValuePrFl) );
cmMemFree(a);
return rc;
}
cmPrRC_t cmPrefsCreateRealArray( cmPrH_t h, unsigned id, const cmChar_t* pathStr, unsigned flags, const double* val, unsigned eleCnt )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
return _cmPrefsCreateJsonNode(p, id, pathStr, kRealTId, NULL, val, NULL, NULL, eleCnt, cmIsFlag(flags, kForceValuePrFl) );
}
cmPrRC_t cmPrefsCreateStringArray( cmPrH_t h, unsigned id, const cmChar_t* pathStr, unsigned flags, const cmChar_t** val, unsigned eleCnt )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
return _cmPrefsCreateJsonNode(p, id, pathStr, kStringTId, val, NULL, NULL, NULL, eleCnt, cmIsFlag(flags,kForceValuePrFl) );
}
bool cmPrefsIsDirty( cmPrH_t h )
{
cmPr_t* p = _cmPrefsHandleToPtr(h);
return p->dirtyFl;
}
cmPrRC_t cmPrefsWrite( cmPrH_t h, const cmChar_t* fn )
{
cmPrRC_t rc = kOkPrRC;
cmPr_t* p = _cmPrefsHandleToPtr(h);
if( fn == NULL )
fn = p->fn;
if( cmJsonWrite( p->jsH, cmJsonRoot(p->jsH), fn) != kOkJsRC )
return cmErrMsg(&p->err,kWriteFileFailPrRC,"Preference writing failed.");
p->dirtyFl = false;
return rc;
}
//=============================================================================================
// cmPrefsTest()
//
void _cmPrintNode( const cmPrNode_t* np )
{
const cmPrPath_t* pp = np->pathPtr;
const cmJsonNode_t* jnp = np->nodePtr;
const cmJsonNode_t* jpp = jnp->ownerPtr;
printf("id:%i type:0x%x parent:0x%x ",np->id,jnp->typeId,jpp==NULL?0:jpp->typeId);
while( pp != NULL )
{
printf("%s ",pp->label);
pp = pp->parentPtr;
}
printf("\n");
}
void _cmPrintNodes( const cmPrNode_t* np )
{
if( np == NULL )
return;
_cmPrintNode(np);
_cmPrintNodes(np->linkPtr);
}
/* example preferences file
{
"cfg" :
{
"inAudDevIdx" : 0
"outAudDevIdx" : 0
"syncInputFl" : false
"midiPortBufByteCnt" : 8192
"msgQueueByteCnt" : 64768
"devFramesPerCycle" : 128
"dspFramesPerCycle" : 64
"audioBufCnt" : 3
"srate" : 44100.000000
"chNames" :
{
"left" : 0
"right" : 1
"array" :
[
0 ,
1 ,
2
]
}
}
}
*/
void cmPrefsTest( cmCtx_t* ctx, const char* ifn, const char* ofn )
{
cmPrH_t h = cmPrNullHandle;
if( cmPrefsInitialize(&h,ifn,NULL,NULL,ctx) != kOkPrRC )
return;
cmPr_t* p = _cmPrefsHandleToPtr(h);
_cmPrintNodes(p->idChainPtr);
unsigned id;
id = cmPrefsId(h, "cfg/audioBufCnt", true );
printf("id:%i\n",id);
//id = cmPrefsId(h, "cfg/audioBuf", true );
//printf("id:%i\n",id);
int sr;
unsigned n=1;
cmPrefsGetInt(h, cmPrefsId(h,"cfg/srate",true), &sr, &n );
printf("sr:%i %i\n",sr,n);
cmPrefsGetInt(h, cmPrefsId(h,"cfg/chNames/array",true), &sr, &n );
printf("sr:%i %i\n",sr,n);
int arr[4];
n = 4;
cmPrefsGetInt(h, cmPrefsId(h,"cfg/chNames/array",true), arr, &n );
printf("array:%i %i %i n=%i\n",arr[0],arr[1],arr[2],n);
sr = 44100;
n = 1;
cmPrefsSetInt(h, cmPrefsId(h,"cfg/srate",true), &sr, &n);
cmPrefsGetInt(h, cmPrefsId(h,"cfg/chNames/array",true), &sr, &n );
printf("sr:%i %i\n",sr,n);
int sarr[] = {10,11,12,13 };
n = sizeof(sarr)/sizeof(sarr[0]);
cmPrefsSetInt(h, cmPrefsId(h,"cfg/chNames/array",true), sarr, &n);
cmPrefsGetInt(h, cmPrefsId(h,"cfg/chNames/array",true), sarr, &n );
printf("array:%i %i %i %i n=%i\n",sarr[0],sarr[1],sarr[2],sarr[3],n);
int tarr[] = {20,21 };
n = sizeof(tarr)/sizeof(tarr[0]);
cmPrefsSetInt(h, cmPrefsId(h,"cfg/chNames/array",true), tarr, &n);
cmPrefsGetInt(h, cmPrefsId(h,"cfg/chNames/array",true), tarr, &n );
printf("array:%i %i n=%i\n",tarr[0],tarr[1],n);
cmPrefsCreateBool(h, cmInvalidId, "cfg/flags/flag0", 0, true );
bool bv = cmPrefsBool(h, cmPrefsId(h,"cfg/flags/flag0",true));
printf("bool:%i\n",bv);
cmPrefsCreateString(h,cmInvalidId, "cfg/audioBufCnt",0,"hey");
const cmChar_t* strArray[] =
{
"snap", "crackle", "pop"
};
cmPrefsCreateStringArray(h, cmInvalidId, "cfg/chNames/strList",0,strArray,3);
cmPrefsWrite(h,ofn);
cmPrefsFinalize(&h);
}
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