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Diffstat (limited to 'source4/lib/appweb/ejs/var.c')
| -rw-r--r-- | source4/lib/appweb/ejs/var.c | 2197 |
1 files changed, 0 insertions, 2197 deletions
diff --git a/source4/lib/appweb/ejs/var.c b/source4/lib/appweb/ejs/var.c deleted file mode 100644 index 9d2afe5306..0000000000 --- a/source4/lib/appweb/ejs/var.c +++ /dev/null @@ -1,2197 +0,0 @@ -/* - * @file var.c - * @brief MPR Universal Variable Type - * @overview - * - * @copy default.m - * - * Copyright (c) Mbedthis Software LLC, 2003-2005. All Rights Reserved. - * Copyright (c) Michael O'Brien, 1994-1995. All Rights Reserved. - * - * This software is distributed under commercial and open source licenses. - * You may use the GPL open source license described below or you may acquire - * a commercial license from Mbedthis Software. You agree to be fully bound - * by the terms of either license. Consult the LICENSE.TXT distributed with - * this software for full details. - * - * This software is open source; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. See the GNU General Public License for more - * details at: http://www.mbedthis.com/downloads/gplLicense.html - * - * This program is distributed WITHOUT ANY WARRANTY; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * - * This GPL license does NOT permit incorporating this software into - * proprietary programs. If you are unable to comply with the GPL, you must - * acquire a commercial license to use this software. Commercial licenses - * for this software and support services are available from Mbedthis - * Software at http://www.mbedthis.com - * - * @end - */ - -/******************************* Documentation ********************************/ - -/* - * This module is NOT multithreaded. - * - * Properties are variables that are stored in an object type variable. - * Properties can be primitive data types, other objects or functions. - * Properties are indexed by a character name. - */ - -/********************************** Includes **********************************/ - -#include "var.h" - -/*********************************** Locals ***********************************/ -#if VAR_DEBUG - -static MprProperties objectList; /* Dummy head of objects list */ -static int objectCount = -1; /* Count of objects */ - -#endif -/***************************** Forward Declarations ***************************/ - -static int adjustRefCount(MprProperties *pp, int adj); -static int adjustVarRefCount(MprVar *vp, int adj); -static MprVar *allocProperty(const char *propertyName); -static void copyVarCore(MprVar *dest, MprVar *src, int copyDepth); -static MprProperties - *createProperties(const char *name, int hashSize); -static bool freeVar(MprVar *vp, int force); -static bool freeVarStorage(MprVar *vp, int force); -static MprVar *getObjChain(MprProperties *pp, const char *property); -static int hash(MprProperties *pp, const char *property); -static bool releaseProperties(MprProperties *pp, int force); - -/*********************************** Code *************************************/ -/* - * Destroy a variable and all referenced variables. Release any referenced - * object regardless of whether other users still have references. Be VERY - * careful using this routine. - * - * Return TRUE if the underlying data is freed. Objects may not be freed if - * there are other users of the object. - */ - -bool mprDestroyAllVars(MprVar *vp) -{ - mprAssert(vp); - - if (vp->trigger) { - if ((vp->trigger)(MPR_VAR_DELETE, vp->parentProperties, vp, 0, 0) - == MPR_TRIGGER_ABORT) { - return 0; - } - } - - /* - * Free the actual value. If this var refers to an object, we will - * recurse through all the properties freeing all vars. - */ - return freeVar(vp, 1); -} - -/******************************************************************************/ -/* - * Destroy a variable. Release any referenced object (destroy if no other - * users are referencing). - * - * Return TRUE if the underlying data is freed. Objects may not be freed if - * there are other users of the object. - */ - -bool mprDestroyVar(MprVar *vp) -{ - mprAssert(vp); - - if (vp->trigger) { - if ((vp->trigger)(MPR_VAR_DELETE, vp->parentProperties, vp, 0, 0) - == MPR_TRIGGER_ABORT) { - return 0; - } - } - - /* - * Free the actual value. If this var refers to an object, we will - * recurse through all the properties freeing all that have no other - * references. - */ - return freeVar(vp, 0); -} - -/******************************************************************************/ -/* - * Free the value in a variable for primitive types. Release objects. - * - * Return TRUE if the underlying data is freed. Objects may not be freed if - * there are other users of the object. - */ - -static bool freeVar(MprVar *vp, int force) -{ - bool freed; - - mprAssert(vp); - - freed = freeVarStorage(vp, force); - - mprFree(vp->name); - mprFree(vp->fullName); - - if (vp->allocatedVar) { - mprFree(vp); - } else { - vp->name = 0; - vp->fullName = 0; - vp->type = MPR_TYPE_UNDEFINED; - } - return freed; -} - -/******************************************************************************/ -/* - * Free the value in a variable for primitive types. Release objects. - * - * Return TRUE if the underlying data is freed. Objects may not be freed if - * there are other users of the object. - */ - -static bool freeVarStorage(MprVar *vp, int force) -{ - MprArray *argList; - bool freed; - int i; - - freed = 1; - mprAssert(vp); - - switch (vp->type) { - default: - break; - - case MPR_TYPE_STRING: - if (vp->allocatedData && vp->string != 0) { - mprFree(vp->string); - vp->string = 0; - vp->allocatedData = 0; - } - break; - - case MPR_TYPE_OBJECT: -#if VAR_DEBUG - /* - * Recurse through all properties and release / delete. Release the - * properties hash table. - */ - if (vp->properties->refCount > 1) { - mprLog(7, "freeVar: ACT \"%s\", 0x%x, ref %d, force %d\n", - vp->name, vp->properties, vp->properties->refCount, force); - } else { - mprLog(7, "freeVar: DEL \"%s\", 0x%x, ref %d, force %d\n", - vp->name, vp->properties, vp->properties->refCount, force); - } -#endif - if (vp->allocatedData) { - freed = releaseProperties(vp->properties, force); - } - vp->properties = 0; - break; - - case MPR_TYPE_FUNCTION: - if (vp->allocatedData) { - argList = vp->function.args; - for (i = 0; i < argList->max; i++) { - if (argList->handles[i] != 0) { - mprFree(argList->handles[i]); - } - } - mprDestroyArray(argList); - vp->function.args = 0; - mprFree(vp->function.body); - vp->function.body = 0; - } - break; - } - - vp->type = MPR_TYPE_UNDEFINED; - return freed; -} - -/******************************************************************************/ -/* - * Adjust the object reference count and return the currrent count of - * users. - */ - -static int adjustVarRefCount(MprVar *vp, int adj) -{ - mprAssert(vp); - - if (vp->type != MPR_TYPE_OBJECT) { - mprAssert(vp->type == MPR_TYPE_OBJECT); - return 0; - } - return adjustRefCount(vp->properties, adj); -} - -/******************************************************************************/ -/* - * Get the object reference count - */ - -int mprGetVarRefCount(MprVar *vp) -{ - mprAssert(vp); - - if (vp->type != MPR_TYPE_OBJECT) { - mprAssert(vp->type == MPR_TYPE_OBJECT); - return 0; - } - return adjustRefCount(vp->properties, 0); -} - -/******************************************************************************/ -/* - * Update the variable's name - */ - -void mprSetVarName(MprVar *vp, char *name) -{ - mprAssert(vp); - - mprFree(vp->name); - vp->name = mprStrdup(name); -} - -/******************************************************************************/ -/* - * Append to the variable's full name - */ - -void mprSetVarFullName(MprVar *vp, char *name) -{ -#if VAR_DEBUG - mprAssert(vp); - - mprFree(vp->fullName); - vp->fullName = mprStrdup(name); - if (vp->type == MPR_TYPE_OBJECT) { - if (strcmp(vp->properties->name, "this") == 0) { - mprStrcpy(vp->properties->name, sizeof(vp->properties->name), name); - } - } -#endif -} - -/******************************************************************************/ -/* - * Make a var impervious to recursive forced deletes. - */ - -void mprSetVarDeleteProtect(MprVar *vp, int deleteProtect) -{ - mprAssert(vp); - - if (vp->type == MPR_TYPE_OBJECT && vp->properties) { - vp->properties->deleteProtect = deleteProtect; - } -} - -/******************************************************************************/ -/* - * Make a variable readonly. Can still be deleted. - */ - -void mprSetVarReadonly(MprVar *vp, int readonly) -{ - mprAssert(vp); - - vp->readonly = readonly; -} - -/******************************************************************************/ - -MprVarTrigger mprAddVarTrigger(MprVar *vp, MprVarTrigger fn) -{ - MprVarTrigger oldTrigger; - - mprAssert(vp); - mprAssert(fn); - - oldTrigger = vp->trigger; - vp->trigger = fn; - return oldTrigger; -} - -/******************************************************************************/ - -MprType mprGetVarType(MprVar *vp) -{ - mprAssert(vp); - - return vp->type; -} - -/******************************************************************************/ -/********************************** Properties ********************************/ -/******************************************************************************/ -/* - * Create a property in an object with a defined value. If the property - * already exists in the object, then just write its value. - */ - -MprVar *mprCreateProperty(MprVar *obj, const char *propertyName, - MprVar *newValue) -{ - MprVar *prop, *last; - int bucketIndex; - - mprAssert(obj); - mprAssert(propertyName && *propertyName); - - if (obj->type != MPR_TYPE_OBJECT) { - mprAssert(obj->type == MPR_TYPE_OBJECT); - return 0; - } - - /* - * See if property already exists and locate the bucket to hold the - * property reference. - */ - last = 0; - bucketIndex = hash(obj->properties, propertyName); - prop = obj->properties->buckets[bucketIndex]; - - /* - * Find the property in the hash chain if it exists - */ - for (last = 0; prop; last = prop, prop = prop->forw) { - if (prop->name[0] == propertyName[0] && - strcmp(prop->name, propertyName) == 0) { - break; - } - } - - if (prop) { - /* FUTURE -- remove. Just for debug. */ - mprAssert(prop == 0); - mprLog(0, "Attempting to create property %s in object %s\n", - propertyName, obj->name); - return 0; - } - - if (obj->trigger) { - if ((obj->trigger)(MPR_VAR_CREATE_PROPERTY, obj->properties, prop, - newValue, 0) == MPR_TRIGGER_ABORT) { - return 0; - } - } - - /* - * Create a new property - */ - prop = allocProperty(propertyName); - if (prop == 0) { - mprAssert(prop); - return 0; - } - - copyVarCore(prop, newValue, MPR_SHALLOW_COPY); - - prop->bucketIndex = bucketIndex; - if (last) { - last->forw = prop; - } else { - obj->properties->buckets[bucketIndex] = prop; - } - prop->parentProperties = obj->properties; - - /* - * Update the item counts - */ - obj->properties->numItems++; - if (! mprVarIsFunction(prop->type)) { - obj->properties->numDataItems++; - } - - return prop; -} - -/******************************************************************************/ -/* - * Create a property in an object with a defined value. If the property - * already exists in the object, then just write its value. Same as - * mprCreateProperty except that the new value is passed by value rather than - * by pointer. - */ - -MprVar *mprCreatePropertyValue(MprVar *obj, const char *propertyName, - MprVar newValue) -{ - return mprCreateProperty(obj, propertyName, &newValue); -} - -/******************************************************************************/ -/* - * Create a new property - */ - -static MprVar *allocProperty(const char *propertyName) -{ - MprVar *prop; - - prop = (MprVar*) mprMalloc(sizeof(MprVar)); - if (prop == 0) { - mprAssert(prop); - return 0; - } - memset(prop, 0, sizeof(MprVar)); - prop->allocatedVar = 1; - prop->name = mprStrdup(propertyName); - prop->forw = (MprVar*) 0; - - return prop; -} - -/******************************************************************************/ -/* - * Update a property in an object with a defined value. Create the property - * if it doesn not already exist. - */ - -MprVar *mprSetProperty(MprVar *obj, const char *propertyName, MprVar *newValue) -{ - MprVar *prop, triggerValue; - int rc; - - mprAssert(obj); - mprAssert(propertyName && *propertyName); - mprAssert(obj->type == MPR_TYPE_OBJECT); - - if (obj->type != MPR_TYPE_OBJECT) { - mprAssert(0); - return 0; - } - - prop = mprGetProperty(obj, propertyName, 0); - if (prop == 0) { - return mprCreateProperty(obj, propertyName, newValue); - } - - if (obj->trigger) { - /* - * Call the trigger before the update and pass it the new value. - */ - triggerValue = *newValue; - triggerValue.allocatedVar = 0; - triggerValue.allocatedData = 0; - rc = (obj->trigger)(MPR_VAR_WRITE, obj->properties, obj, - &triggerValue, 0); - if (rc == MPR_TRIGGER_ABORT) { - return 0; - - } else if (rc == MPR_TRIGGER_USE_NEW_VALUE) { - /* - * Trigger must copy to triggerValue a variable that is not - * a structure copy of the existing data. - */ - copyVarCore(prop, &triggerValue, MPR_SHALLOW_COPY); - mprDestroyVar(&triggerValue); - return prop; - } - } - copyVarCore(prop, newValue, MPR_SHALLOW_COPY); - return prop; -} - -/******************************************************************************/ -/* - * Update a property in an object with a defined value. Create the property - * if it does not already exist. Same as mprSetProperty except that the - * new value is passed by value rather than by pointer. - */ - -MprVar *mprSetPropertyValue(MprVar *obj, const char *propertyName, - MprVar newValue) -{ - return mprSetProperty(obj, propertyName, &newValue); -} - -/******************************************************************************/ -/* - * Delete a property from this object - */ - -int mprDeleteProperty(MprVar *obj, const char *property) -{ - MprVar *prop, *last; - char *cp; - int bucketIndex; - - mprAssert(obj); - mprAssert(property && *property); - mprAssert(obj->type == MPR_TYPE_OBJECT); - - if (obj->type != MPR_TYPE_OBJECT) { - mprAssert(obj->type == MPR_TYPE_OBJECT); - return 0; - } - - last = 0; - bucketIndex = hash(obj->properties, property); - if ((prop = obj->properties->buckets[bucketIndex]) != 0) { - for ( ; prop; prop = prop->forw) { - cp = prop->name; - if (cp[0] == property[0] && strcmp(cp, property) == 0) { - break; - } - last = prop; - } - } - if (prop == (MprVar*) 0) { - mprAssert(prop); - return MPR_ERR_NOT_FOUND; - } - if (prop->readonly) { - mprAssert(! prop->readonly); - return MPR_ERR_READ_ONLY; - } - - if (obj->trigger) { - if ((obj->trigger)(MPR_VAR_DELETE_PROPERTY, obj->properties, prop, 0, 0) - == MPR_TRIGGER_ABORT) { - return MPR_ERR_ABORTED; - } - } - - if (last) { - last->forw = prop->forw; - } else { - obj->properties->buckets[bucketIndex] = prop->forw; - } - - obj->properties->numItems--; - if (! mprVarIsFunction(prop->type)) { - obj->properties->numDataItems--; - } - - mprDestroyVar(prop); - - return 0; -} - -/******************************************************************************/ -/* - * Find a property in an object and return a pointer to it. If a value arg - * is supplied, then copy the data into the var. - */ - -MprVar *mprGetProperty(MprVar *obj, const char *property, MprVar *value) -{ - MprVar *prop, triggerValue; - int rc; - - if (obj == 0 || obj->type != MPR_TYPE_OBJECT || property == 0 || - *property == '\0') { - if (value) { - value->type = MPR_TYPE_UNDEFINED; - } - return 0; - } - - for (prop = getObjChain(obj->properties, property); prop; - prop = prop->forw) { - if (prop->name && - prop->name[0] == property[0] && strcmp(prop->name, property) == 0) { - break; - } - } - if (prop == 0) { - if (value) { - value->type = MPR_TYPE_UNDEFINED; - } - return 0; - } - if (value) { - if (prop->trigger) { - triggerValue = *prop; - triggerValue.allocatedVar = 0; - triggerValue.allocatedData = 0; - /* - * Pass the trigger the current read value and may receive - * a new value. - */ - rc = (prop->trigger)(MPR_VAR_READ, prop->parentProperties, prop, - &triggerValue, 0); - if (rc == MPR_TRIGGER_ABORT) { - if (value) { - value->type = MPR_TYPE_UNDEFINED; - } - return 0; - - } else if (rc == MPR_TRIGGER_USE_NEW_VALUE) { - copyVarCore(prop, &triggerValue, MPR_SHALLOW_COPY); - mprDestroyVar(&triggerValue); - } - } - /* - * Clone. No copy. - */ - *value = *prop; - } - return prop; -} - -/******************************************************************************/ -/* - * Read a properties value. This returns the property's value. It does not - * copy object/string data but returns a pointer directly into the variable. - * The caller does not and should not call mprDestroy on the returned value. - * If value is null, just read the property and run triggers. - */ - -int mprReadProperty(MprVar *prop, MprVar *value) -{ - MprVar triggerValue; - int rc; - - mprAssert(prop); - - if (prop->trigger) { - triggerValue = *prop; - triggerValue.allocatedVar = 0; - triggerValue.allocatedData = 0; - rc = (prop->trigger)(MPR_VAR_READ, prop->parentProperties, prop, - &triggerValue, 0); - - if (rc == MPR_TRIGGER_ABORT) { - return MPR_ERR_ABORTED; - - } else if (rc == MPR_TRIGGER_USE_NEW_VALUE) { - copyVarCore(prop, &triggerValue, MPR_SHALLOW_COPY); - mprDestroyVar(&triggerValue); - return 0; - } - } - if (value) { - *value = *prop; - - /* - * Just so that if the user calls mprDestroyVar on value, it will do no - * harm. - */ - value->allocatedVar = 0; - value->allocatedData = 0; - } - return 0; -} - -/******************************************************************************/ -/* - * Read a properties value. This returns a copy of the property variable. - * However, if the property is an object or string, it returns a copy of the - * reference to the underlying data. If copyDepth is set to MPR_DEEP_COPY, - * then the underlying objects and strings data will be copied as well. If - * copyDepth is set to MPR_SHALLOW_COPY, then only strings will be copied. If - * it is set to MPR_NO_COPY, then no data will be copied. In all cases, the - * user must call mprDestroyVar to free resources. This routine will run any - * registered triggers which may modify the value the user receives (without - * updating the properties real value). - * - * WARNING: the args are reversed to most other APIs. This conforms to the - * strcpy(dest, src) standard instead. - */ - -int mprCopyProperty(MprVar *dest, MprVar *prop, int copyDepth) -{ - MprVar triggerValue; - int rc; - - mprAssert(prop); - mprAssert(dest); - - if (prop->trigger) { - triggerValue = *prop; - triggerValue.allocatedVar = 0; - triggerValue.allocatedData = 0; - rc = (prop->trigger)(MPR_VAR_READ, prop->parentProperties, prop, - &triggerValue, copyDepth); - - if (rc == MPR_TRIGGER_ABORT) { - return MPR_ERR_ABORTED; - - } else if (rc == MPR_TRIGGER_USE_NEW_VALUE) { - copyVarCore(dest, &triggerValue, MPR_SHALLOW_COPY); - mprDestroyVar(&triggerValue); - return 0; - } - } - mprCopyVar(dest, prop, copyDepth); - return 0; -} - -/******************************************************************************/ -/* - * Write a new value into an existing property in an object. - */ - -int mprWriteProperty(MprVar *vp, MprVar *value) -{ - MprVar triggerValue; - int rc; - - mprAssert(vp); - mprAssert(value); - - if (vp->readonly) { - return MPR_ERR_READ_ONLY; - } - - if (vp->trigger) { - triggerValue = *value; - - rc = (vp->trigger)(MPR_VAR_WRITE, vp->parentProperties, vp, - &triggerValue, 0); - - if (rc == MPR_TRIGGER_ABORT) { - return MPR_ERR_ABORTED; - - } else if (rc == MPR_TRIGGER_USE_NEW_VALUE) { - copyVarCore(vp, &triggerValue, MPR_SHALLOW_COPY); - mprDestroyVar(&triggerValue); - return 0; - } - /* Fall through */ - } - - copyVarCore(vp, value, MPR_SHALLOW_COPY); - return 0; -} - -/******************************************************************************/ -/* - * Write a new value into an existing property in an object. - */ - -int mprWritePropertyValue(MprVar *vp, MprVar value) -{ - mprAssert(vp); - - return mprWriteProperty(vp, &value); -} - -/******************************************************************************/ -/* - * Get the count of properties. - */ - -int mprGetPropertyCount(MprVar *vp, int includeFlags) -{ - mprAssert(vp); - - if (vp->type != MPR_TYPE_OBJECT) { - return 0; - } - if (includeFlags == MPR_ENUM_DATA) { - return vp->properties->numDataItems; - } else { - return vp->properties->numItems; - } -} - -/******************************************************************************/ -/* - * Get the first property in an object. Used for walking all properties in an - * object. - */ - -MprVar *mprGetFirstProperty(MprVar *obj, int includeFlags) -{ - MprVar *prop; - int i; - - mprAssert(obj); - mprAssert(obj->type == MPR_TYPE_OBJECT); - - if (obj->type != MPR_TYPE_OBJECT) { - mprAssert(obj->type == MPR_TYPE_OBJECT); - return 0; - } - - for (i = 0; i < (int) obj->properties->hashSize; i++) { - for (prop = obj->properties->buckets[i]; prop; prop = prop->forw) { - if (prop) { - if (mprVarIsFunction(prop->type)) { - if (!(includeFlags & MPR_ENUM_FUNCTIONS)) { - continue; - } - } else { - if (!(includeFlags & MPR_ENUM_DATA)) { - continue; - } - } - return prop; - } - break; - } - } - return 0; -} - -/******************************************************************************/ -/* - * Get the next property in sequence. - */ - -MprVar *mprGetNextProperty(MprVar *obj, MprVar *last, int includeFlags) -{ - MprProperties *properties; - int i; - - mprAssert(obj); - mprAssert(obj->type == MPR_TYPE_OBJECT); - - if (obj->type != MPR_TYPE_OBJECT) { - mprAssert(obj->type == MPR_TYPE_OBJECT); - return 0; - } - properties = obj->properties; - - if (last->forw) { - return last->forw; - } - - for (i = last->bucketIndex + 1; i < (int) properties->hashSize; i++) { - for (last = properties->buckets[i]; last; last = last->forw) { - if (mprVarIsFunction(last->type)) { - if (!(includeFlags & MPR_ENUM_FUNCTIONS)) { - continue; - } - } else { - if (!(includeFlags & MPR_ENUM_DATA)) { - continue; - } - } - return last; - } - } - return 0; -} - -/******************************************************************************/ -/************************** Internal Support Routines *************************/ -/******************************************************************************/ -/* - * Create an hash table to hold and index properties. Properties are just - * variables which may contain primitive data types, functions or other - * objects. The hash table is the essence of an object. HashSize specifies - * the size of the hash table to use and should be a prime number. - */ - -static MprProperties *createProperties(const char *name, int hashSize) -{ - MprProperties *pp; - - if (hashSize < 7) { - hashSize = 7; - } - if ((pp = (MprProperties*) mprMalloc(sizeof(MprProperties))) == NULL) { - mprAssert(0); - return 0; - } - mprAssert(pp); - memset(pp, 0, sizeof(MprProperties)); - - pp->numItems = 0; - pp->numDataItems = 0; - pp->hashSize = hashSize; - pp->buckets = (MprVar**) mprMalloc(pp->hashSize * sizeof(MprVar*)); - mprAssert(pp->buckets); - memset(pp->buckets, 0, pp->hashSize * sizeof(MprVar*)); - pp->refCount = 1; - -#if VAR_DEBUG - if (objectCount == -1) { - objectCount = 0; - objectList.next = objectList.prev = &objectList; - } - - mprStrcpy(pp->name, sizeof(pp->name), name); - pp->next = &objectList; - pp->prev = objectList.prev; - objectList.prev->next = pp; - objectList.prev = pp; - objectCount++; -#endif - return pp; -} - -/******************************************************************************/ -/* - * Release an object's properties hash table. If this is the last person - * using it, free it. Return TRUE if the object is released. - */ - -static bool releaseProperties(MprProperties *obj, int force) -{ - MprProperties *pp; - MprVar *prop, *forw; - int i; - - mprAssert(obj); - mprAssert(obj->refCount > 0); - -#if VAR_DEBUG - /* - * Debug sanity check - */ - mprAssert(obj->refCount < 20); -#endif - - if (--obj->refCount > 0 && !force) { - return 0; - } - -#if VAR_DEBUG - mprAssert(obj->prev); - mprAssert(obj->next); - mprAssert(obj->next->prev); - mprAssert(obj->prev->next); - obj->next->prev = obj->prev; - obj->prev->next = obj->next; - objectCount--; -#endif - - for (i = 0; i < (int) obj->hashSize; i++) { - for (prop = obj->buckets[i]; prop; prop = forw) { - forw = prop->forw; - if (prop->type == MPR_TYPE_OBJECT) { - - if (prop->properties == obj) { - /* Self reference */ - continue; - } - pp = prop->properties; - if (pp->visited) { - continue; - } - - pp->visited = 1; - if (! freeVar(prop, pp->deleteProtect ? 0 : force)) { - pp->visited = 0; - } - - } else { - freeVar(prop, force); - } - } - } - - mprFree((void*) obj->buckets); - mprFree((void*) obj); - - return 1; -} - -/******************************************************************************/ -/* - * Adjust the reference count - */ - -static int adjustRefCount(MprProperties *pp, int adj) -{ - mprAssert(pp); - - /* - * Debug sanity check - */ - mprAssert(pp->refCount < 20); - - return pp->refCount += adj; -} - -/******************************************************************************/ -#if VAR_DEBUG -/* - * Print objects held - */ - -void mprPrintObjects(char *msg) -{ - MprProperties *pp, *np; - MprVar *prop, *forw; - char *buf; - int i; - - mprLog(7, "%s: Object Store. %d objects.\n", msg, objectCount); - pp = objectList.next; - while (pp != &objectList) { - mprLog(7, "%s: 0x%x, refCount %d, properties %d\n", - pp->name, pp, pp->refCount, pp->numItems); - for (i = 0; i < (int) pp->hashSize; i++) { - for (prop = pp->buckets[i]; prop; prop = forw) { - forw = prop->forw; - if (prop->properties == pp) { - /* Self reference */ - continue; - } - mprVarToString(&buf, MPR_MAX_STRING, 0, prop); - if (prop->type == MPR_TYPE_OBJECT) { - np = objectList.next; - while (np != &objectList) { - if (prop->properties == np) { - break; - } - np = np->next; - } - if (prop->properties == np) { - mprLog(7, " %s: OBJECT 0x%x, <%s>\n", - prop->name, prop->properties, prop->fullName); - } else { - mprLog(7, " %s: OBJECT NOT FOUND, %s <%s>\n", - prop->name, buf, prop->fullName); - } - } else { - mprLog(7, " %s: <%s> = %s\n", prop->name, - prop->fullName, buf); - } - mprFree(buf); - } - } - pp = pp->next; - } -} - -/******************************************************************************/ - -void mprPrintObjRefCount(MprVar *vp) -{ - mprLog(7, "OBJECT 0x%x, refCount %d\n", vp->properties, - vp->properties->refCount); -} - -#endif -/******************************************************************************/ -/* - * Get the bucket chain containing a property. - */ - -static MprVar *getObjChain(MprProperties *obj, const char *property) -{ - mprAssert(obj); - - return obj->buckets[hash(obj, property)]; -} - -/******************************************************************************/ -/* - * Fast hash. The history of this algorithm is part of lost computer science - * folk lore. - */ - -static int hash(MprProperties *pp, const char *property) -{ - uint sum; - - mprAssert(pp); - mprAssert(property); - - sum = 0; - while (*property) { - sum += (sum * 33) + *property++; - } - - return sum % pp->hashSize; -} - -/******************************************************************************/ -/*********************************** Constructors *****************************/ -/******************************************************************************/ -/* - * Initialize an undefined value. - */ - -MprVar mprCreateUndefinedVar() -{ - MprVar v; - - memset(&v, 0x0, sizeof(v)); - v.type = MPR_TYPE_UNDEFINED; - return v; -} - -/******************************************************************************/ -/* - * Initialize an null value. - */ - -MprVar mprCreateNullVar() -{ - MprVar v; - - memset(&v, 0x0, sizeof(v)); - v.type = MPR_TYPE_NULL; - return v; -} - -/******************************************************************************/ - -MprVar mprCreateBoolVar(bool value) -{ - MprVar v; - - memset(&v, 0x0, sizeof(v)); - v.type = MPR_TYPE_BOOL; - v.boolean = value; - return v; -} - -/******************************************************************************/ -/* - * Initialize a C function. - */ - -MprVar mprCreateCFunctionVar(MprCFunction fn, void *thisPtr, int flags) -{ - MprVar v; - - memset(&v, 0x0, sizeof(v)); - v.type = MPR_TYPE_CFUNCTION; - v.cFunction.fn = fn; - v.cFunction.thisPtr = thisPtr; - v.flags = flags; - - return v; -} - -/******************************************************************************/ -/* - * Initialize a C function. - */ - -MprVar mprCreateStringCFunctionVar(MprStringCFunction fn, void *thisPtr, - int flags) -{ - MprVar v; - - memset(&v, 0x0, sizeof(v)); - v.type = MPR_TYPE_STRING_CFUNCTION; - v.cFunctionWithStrings.fn = fn; - v.cFunctionWithStrings.thisPtr = thisPtr; - v.flags = flags; - - return v; -} - -/******************************************************************************/ -/* - * Initialize an opaque pointer. - */ - -MprVar mprCreatePtrVar(void *ptr) -{ - MprVar v; - - memset(&v, 0x0, sizeof(v)); - v.type = MPR_TYPE_PTR; - v.ptr = ptr; - - return v; -} - -/******************************************************************************/ -#if BLD_FEATURE_FLOATING_POINT -/* - * Initialize a floating value. - */ - -MprVar mprCreateFloatVar(double value) -{ - MprVar v; - - memset(&v, 0x0, sizeof(v)); - v.type = MPR_TYPE_FLOAT; - v.floating = value; - return v; -} - -#endif -/******************************************************************************/ -/* - * Initialize an integer value. - */ - -MprVar mprCreateIntegerVar(int value) -{ - MprVar v; - - memset(&v, 0x0, sizeof(v)); - v.type = MPR_TYPE_INT; - v.integer = value; - return v; -} - -/******************************************************************************/ -#if BLD_FEATURE_INT64 -/* - * Initialize a 64-bit integer value. - */ - -MprVar mprCreateInteger64Var(int64 value) -{ - MprVar v; - - memset(&v, 0x0, sizeof(v)); - v.type = MPR_TYPE_INT64; - v.integer64 = value; - return v; -} - -#endif /* BLD_FEATURE_INT64 */ -/******************************************************************************/ -/* - * Initialize an number variable. Type is defined by configure. - */ - -MprVar mprCreateNumberVar(MprNum value) -{ - MprVar v; - - memset(&v, 0x0, sizeof(v)); - v.type = BLD_FEATURE_NUM_TYPE_ID; -#if BLD_FEATURE_NUM_TYPE_ID == MPR_TYPE_INT64 - v.integer64 = value; -#elif BLD_FEATURE_NUM_TYPE_ID == MPR_TYPE_FLOAT - v.float = value; -#else - v.integer = value; -#endif - return v; -} - -/******************************************************************************/ -/* - * Initialize a (bare) JavaScript function. args and body can be null. - */ - -MprVar mprCreateFunctionVar(char *args, char *body, int flags) -{ - MprVar v; - char *cp, *arg, *last; - int aid; - - memset(&v, 0x0, sizeof(v)); - v.type = MPR_TYPE_FUNCTION; - v.flags = flags; - - v.function.args = mprCreateArray(); - - if (args) { - args = mprStrdup(args); - arg = mprStrTok(args, ",", &last); - while (arg) { - while (isspace((int) *arg)) - arg++; - for (cp = &arg[strlen(arg) - 1]; cp > arg; cp--) { - if (!isspace((int) *cp)) { - break; - } - } - cp[1] = '\0'; - - aid = mprAddToArray(v.function.args, mprStrdup(arg)); - arg = mprStrTok(0, ",", &last); - } - mprFree(args); - } - - if (body) { - v.function.body = mprStrdup(body); - } - v.allocatedData = 1; - return v; -} - -/******************************************************************************/ -/* - * Initialize an object variable. Return type == MPR_TYPE_UNDEFINED if the - * memory allocation for the properties table failed. - */ - -MprVar mprCreateObjVar(const char *name, int hashSize) -{ - MprVar v; - - mprAssert(name && *name); - - memset(&v, 0x0, sizeof(MprVar)); - v.type = MPR_TYPE_OBJECT; - if (hashSize <= 0) { - hashSize = MPR_DEFAULT_HASH_SIZE; - } - v.properties = createProperties(name, hashSize); - if (v.properties == 0) { - /* Indicate failed memory allocation */ - v.type = MPR_TYPE_UNDEFINED; - } - v.allocatedData = 1; - v.name = mprStrdup(name); - mprLog(7, "mprCreateObjVar %s, 0x%p\n", name, v.properties); - return v; -} - -/******************************************************************************/ -/* - * Initialize a string value. - */ - -MprVar mprCreateStringVar(const char *value, bool allocate) -{ - MprVar v; - - memset(&v, 0x0, sizeof(v)); - v.type = MPR_TYPE_STRING; - if (value == 0) { - v.string = ""; - } else if (allocate) { - v.string = mprStrdup(value); - v.allocatedData = 1; - } else { - v.string = (char*) value; - } - return v; -} - -/******************************************************************************/ -/* - * Copy an objects core value (only). This preserves the destination object's - * name. This implements copy by reference for objects and copy by value for - * strings and other types. Caller must free dest prior to calling. - */ - -static void copyVarCore(MprVar *dest, MprVar *src, int copyDepth) -{ - MprVarTrigger saveTrigger; - MprVar *srcProp, *destProp, *last; - char **srcArgs; - int i; - - mprAssert(dest); - mprAssert(src); - - if (dest == src) { - return; - } - - /* - * FUTURE: we should allow read-only triggers where the value is never - * stored in the object. Currently, triggers override the readonly - * status. - */ - - if (dest->type != MPR_TYPE_UNDEFINED && dest->readonly && !dest->trigger) { - mprAssert(0); - return; - } - - if (dest->type != MPR_TYPE_UNDEFINED) { - saveTrigger = dest->trigger; - freeVarStorage(dest, 0); - } else { - saveTrigger = 0; - } - - switch (src->type) { - default: - case MPR_TYPE_UNDEFINED: - case MPR_TYPE_NULL: - break; - - case MPR_TYPE_BOOL: - dest->boolean = src->boolean; - break; - - case MPR_TYPE_PTR: - dest->ptr = src->ptr; - break; - - case MPR_TYPE_STRING_CFUNCTION: - dest->cFunctionWithStrings = src->cFunctionWithStrings; - break; - - case MPR_TYPE_CFUNCTION: - dest->cFunction = src->cFunction; - break; - -#if BLD_FEATURE_FLOATING_POINT - case MPR_TYPE_FLOAT: - dest->floating = src->floating; - break; -#endif - - case MPR_TYPE_INT: - dest->integer = src->integer; - break; - -#if BLD_FEATURE_INT64 - case MPR_TYPE_INT64: - dest->integer64 = src->integer64; - break; -#endif - - case MPR_TYPE_OBJECT: - if (copyDepth == MPR_DEEP_COPY) { - - dest->properties = createProperties(src->name, - src->properties->hashSize); - dest->allocatedData = 1; - - for (i = 0; i < (int) src->properties->hashSize; i++) { - last = 0; - for (srcProp = src->properties->buckets[i]; srcProp; - srcProp = srcProp->forw) { - if (srcProp->visited) { - continue; - } - destProp = allocProperty(srcProp->name); - if (destProp == 0) { - mprAssert(destProp); - return; - } - - destProp->bucketIndex = i; - if (last) { - last->forw = destProp; - } else { - dest->properties->buckets[i] = destProp; - } - destProp->parentProperties = dest->properties; - - /* - * Recursively copy the object - */ - srcProp->visited = 1; - copyVarCore(destProp, srcProp, copyDepth); - srcProp->visited = 0; - last = srcProp; - } - } - dest->properties->numItems = src->properties->numItems; - dest->properties->numDataItems = src->properties->numDataItems; - dest->allocatedData = 1; - - } else if (copyDepth == MPR_SHALLOW_COPY) { - dest->properties = src->properties; - adjustVarRefCount(src, 1); - dest->allocatedData = 1; - - } else { - dest->properties = src->properties; - dest->allocatedData = 0; - } - break; - - case MPR_TYPE_FUNCTION: - if (copyDepth != MPR_NO_COPY) { - dest->function.args = mprCreateArray(); - srcArgs = (char**) src->function.args->handles; - for (i = 0; i < src->function.args->max; i++) { - if (srcArgs[i]) { - mprAddToArray(dest->function.args, mprStrdup(srcArgs[i])); - } - } - dest->function.body = mprStrdup(src->function.body); - dest->allocatedData = 1; - } else { - dest->function.args = src->function.args; - dest->function.body = src->function.body; - dest->allocatedData = 0; - } - break; - - case MPR_TYPE_STRING: - if (src->string && copyDepth != MPR_NO_COPY) { - dest->string = mprStrdup(src->string); - dest->allocatedData = 1; - } else { - dest->string = src->string; - dest->allocatedData = 0; - } - break; - } - - dest->type = src->type; - dest->flags = src->flags; - dest->trigger = saveTrigger; - - /* - * Just for safety - */ - dest->spare = 0; -} - -/******************************************************************************/ -/* - * Copy an entire object including name. - */ - -void mprCopyVar(MprVar *dest, MprVar *src, int copyDepth) -{ - mprAssert(dest); - mprAssert(src); - - copyVarCore(dest, src, copyDepth); - - mprFree(dest->name); - dest->name = mprStrdup(src->name); - -#if VAR_DEBUG - if (src->type == MPR_TYPE_OBJECT) { - - mprFree(dest->fullName); - dest->fullName = mprStrdup(src->fullName); - - mprLog(7, "mprCopyVar: object \"%s\", FDQ \"%s\" 0x%x, refCount %d\n", - dest->name, dest->fullName, dest->properties, - dest->properties->refCount); - } -#endif -} - -/******************************************************************************/ -/* - * Copy an entire object including name. - */ - -void mprCopyVarValue(MprVar *dest, MprVar src, int copyDepth) -{ - mprAssert(dest); - - mprCopyVar(dest, &src, copyDepth); -} - -/******************************************************************************/ -/* - * Copy an object. This implements copy by reference for objects and copy by - * value for strings and other types. Caller must free dest prior to calling. - */ - -MprVar *mprDupVar(MprVar *src, int copyDepth) -{ - MprVar *dest; - - mprAssert(src); - - dest = (MprVar*) mprMalloc(sizeof(MprVar)); - memset(dest, 0, sizeof(MprVar)); - - mprCopyVar(dest, src, copyDepth); - return dest; -} - -/******************************************************************************/ -/* - * Convert a value to a text based representation of its value - * FUTURE -- conver this to use the format string in all cases. Allow - * arbitrary format strings. - */ - -void mprVarToString(char** out, int size, char *fmt, MprVar *obj) -{ - char *src; - - mprAssert(out); - - *out = NULL; - - if (obj->trigger) { - mprReadProperty(obj, 0); - } - - switch (obj->type) { - case MPR_TYPE_UNDEFINED: - /* FUTURE -- spec says convert to "undefined" */ - *out = mprStrdup(""); - break; - - case MPR_TYPE_NULL: - *out = mprStrdup("null"); - break; - - case MPR_TYPE_PTR: - mprAllocSprintf(out, size, "[Opaque Pointer %p]", obj->ptr); - break; - - case MPR_TYPE_BOOL: - if (obj->boolean) { - *out = mprStrdup("true"); - } else { - *out = mprStrdup("false"); - } - break; - -#if BLD_FEATURE_FLOATING_POINT - case MPR_TYPE_FLOAT: - if (fmt == NULL || *fmt == '\0') { - mprAllocSprintf(out, size, "%f", obj->floating); - } else { - mprAllocSprintf(out, size, fmt, obj->floating); - } - break; -#endif - - case MPR_TYPE_INT: - if (fmt == NULL || *fmt == '\0') { - mprAllocSprintf(out, size, "%d", obj->integer); - } else { - mprAllocSprintf(out, size, fmt, obj->integer); - } - break; - -#if BLD_FEATURE_INT64 - case MPR_TYPE_INT64: - if (fmt == NULL || *fmt == '\0') { -#if BLD_GOAHEAD_WEBSERVER - mprAllocSprintf(out, size, "%d", (int) obj->integer64); -#else - mprAllocSprintf(out, size, "%Ld", obj->integer64); -#endif - } else { - mprAllocSprintf(out, size, fmt, obj->integer64); - } - break; -#endif - - case MPR_TYPE_CFUNCTION: - mprAllocSprintf(out, size, "[C Function]"); - break; - - case MPR_TYPE_STRING_CFUNCTION: - mprAllocSprintf(out, size, "[C StringFunction]"); - break; - - case MPR_TYPE_FUNCTION: - mprAllocSprintf(out, size, "[JavaScript Function]"); - break; - - case MPR_TYPE_OBJECT: - /* FUTURE -- really want: [object class: name] */ - mprAllocSprintf(out, size, "[object %s]", obj->name); - break; - - case MPR_TYPE_STRING: - src = obj->string; - - mprAssert(src); - if (fmt && *fmt) { - mprAllocSprintf(out, size, fmt, src); - - } else if (src == NULL) { - *out = mprStrdup("null"); - - } else { - *out = mprStrdup(src); - } - break; - - default: - mprAssert(0); - } -} - -/******************************************************************************/ -/* - * Parse a string based on formatting instructions and intelligently - * create a variable. - */ - -MprVar mprParseVar(char *buf, MprType preferredType) -{ - MprType type = MPR_TYPE_UNDEFINED; - char *cp; - - mprAssert(buf); - - if (preferredType == MPR_TYPE_UNDEFINED) { - if (*buf == '-') { - type = MPR_NUM_VAR; - - } else if (!isdigit((int) *buf)) { - if (strcmp(buf, "true") == 0 || strcmp(buf, "false") == 0) { - type = MPR_TYPE_BOOL; - } else { - type = MPR_TYPE_STRING; - } - - } else if (isdigit((int) *buf)) { - type = MPR_NUM_VAR; - cp = buf; - if (*cp && tolower((unsigned char)cp[1]) == 'x') { - cp = &cp[2]; - } - for (cp = buf; *cp; cp++) { - if (! isdigit((unsigned char) *cp)) { - break; - } - } - - if (*cp != '\0') { -#if BLD_FEATURE_FLOATING_POINT - if (*cp == '.' || tolower((unsigned char)*cp) == 'e') { - type = MPR_TYPE_FLOAT; - } else -#endif - { - type = MPR_NUM_VAR; - } - } - } - } else { - type = preferredType; - } - - switch (type) { - case MPR_TYPE_OBJECT: - case MPR_TYPE_UNDEFINED: - case MPR_TYPE_NULL: - case MPR_TYPE_PTR: - default: - break; - - case MPR_TYPE_BOOL: - return mprCreateBoolVar(buf[0] == 't' ? 1 : 0); - - case MPR_TYPE_INT: - return mprCreateIntegerVar(mprParseInteger(buf)); - -#if BLD_FEATURE_INT64 - case MPR_TYPE_INT64: - return mprCreateInteger64Var(mprParseInteger64(buf)); -#endif - - case MPR_TYPE_STRING: - if (strcmp(buf, "null") == 0) { - return mprCreateNullVar(); - } else if (strcmp(buf, "undefined") == 0) { - return mprCreateUndefinedVar(); - } - - return mprCreateStringVar(buf, 1); - -#if BLD_FEATURE_FLOATING_POINT - case MPR_TYPE_FLOAT: - return mprCreateFloatVar(atof(buf)); -#endif - - } - return mprCreateUndefinedVar(); -} - -/******************************************************************************/ -/* - * Convert the variable to a boolean. Only for primitive types. - */ - -bool mprVarToBool(const MprVar *vp) -{ - mprAssert(vp); - - switch (vp->type) { - case MPR_TYPE_UNDEFINED: - case MPR_TYPE_NULL: - case MPR_TYPE_STRING_CFUNCTION: - case MPR_TYPE_CFUNCTION: - case MPR_TYPE_FUNCTION: - case MPR_TYPE_OBJECT: - return 0; - - case MPR_TYPE_PTR: - return (vp->ptr != NULL); - - case MPR_TYPE_BOOL: - return vp->boolean; - -#if BLD_FEATURE_FLOATING_POINT - case MPR_TYPE_FLOAT: - return (vp->floating != 0 && !mprIsNan(vp->floating)); -#endif - - case MPR_TYPE_INT: - return (vp->integer != 0); - -#if BLD_FEATURE_INT64 - case MPR_TYPE_INT64: - return (vp->integer64 != 0); -#endif - - case MPR_TYPE_STRING: - mprAssert(vp->string); - return (vp->string[0] != '\0'); - } - - /* Not reached */ - return 0; -} - -/******************************************************************************/ -#if BLD_FEATURE_FLOATING_POINT -/* - * Convert the variable to a floating point number. Only for primitive types. - */ - -double mprVarToFloat(const MprVar *vp) -{ - mprAssert(vp); - - switch (vp->type) { - case MPR_TYPE_UNDEFINED: - case MPR_TYPE_NULL: - case MPR_TYPE_STRING_CFUNCTION: - case MPR_TYPE_CFUNCTION: - case MPR_TYPE_FUNCTION: - case MPR_TYPE_OBJECT: - case MPR_TYPE_PTR: - return 0; - - case MPR_TYPE_BOOL: - return (vp->boolean) ? 1.0 : 0.0; - - case MPR_TYPE_FLOAT: - return vp->floating; - - case MPR_TYPE_INT: - return (double) vp->integer; - -#if BLD_FEATURE_INT64 - case MPR_TYPE_INT64: - return (double) vp->integer64; -#endif - - case MPR_TYPE_STRING: - mprAssert(vp->string); - return atof(vp->string); - } - - /* Not reached */ - return 0; -} - -#endif -/******************************************************************************/ -/* - * Convert the variable to a number type. Only works for primitive types. - */ - -MprNum mprVarToNumber(const MprVar *vp) -{ -#if BLD_FEATURE_NUM_TYPE_ID == MPR_TYPE_INT64 - return mprVarToInteger64(vp); -#elif BLD_FEATURE_NUM_TYPE_ID == MPR_TYPE_FLOAT - return mprVarToFloat(vp); -#else - return mprVarToInteger(vp); -#endif -} - -/******************************************************************************/ -/* - * Convert the variable to a number type. Only works for primitive types. - */ - -MprNum mprParseNumber(char *s) -{ -#if BLD_FEATURE_NUM_TYPE_ID == MPR_TYPE_INT64 - return mprParseInteger64(s); -#elif BLD_FEATURE_NUM_TYPE_ID == MPR_TYPE_FLOAT - return mprParseFloat(s); -#else - return mprParseInteger(s); -#endif -} - -/******************************************************************************/ -#if BLD_FEATURE_INT64 -/* - * Convert the variable to an Integer64 type. Only works for primitive types. - */ - -int64 mprVarToInteger64(const MprVar *vp) -{ - mprAssert(vp); - - switch (vp->type) { - case MPR_TYPE_UNDEFINED: - case MPR_TYPE_NULL: - case MPR_TYPE_STRING_CFUNCTION: - case MPR_TYPE_CFUNCTION: - case MPR_TYPE_FUNCTION: - case MPR_TYPE_OBJECT: - case MPR_TYPE_PTR: - return 0; - - case MPR_TYPE_BOOL: - return (vp->boolean) ? 1 : 0; - -#if BLD_FEATURE_FLOATING_POINT - case MPR_TYPE_FLOAT: - if (mprIsNan(vp->floating)) { - return 0; - } - return (int64) vp->floating; -#endif - - case MPR_TYPE_INT: - return vp->integer; - - case MPR_TYPE_INT64: - return vp->integer64; - - case MPR_TYPE_STRING: - return mprParseInteger64(vp->string); - } - - /* Not reached */ - return 0; -} - -/******************************************************************************/ -/* - * Convert the string buffer to an Integer64. - */ - -int64 mprParseInteger64(char *str) -{ - char *cp; - int64 num64; - int radix, c, negative; - - mprAssert(str); - - cp = str; - num64 = 0; - negative = 0; - - if (*cp == '-') { - cp++; - negative = 1; - } - - /* - * Parse a number. Observe hex and octal prefixes (0x, 0) - */ - if (*cp != '0') { - /* - * Normal numbers (Radix 10) - */ - while (isdigit((int) *cp)) { - num64 = (*cp - '0') + (num64 * 10); - cp++; - } - } else { - cp++; - if (tolower((unsigned char)*cp) == 'x') { - cp++; - radix = 16; - while (*cp) { - c = tolower((unsigned char)*cp); - if (isdigit(c)) { - num64 = (c - '0') + (num64 * radix); - } else if (c >= 'a' && c <= 'f') { - num64 = (c - 'a') + (num64 * radix); - } else { - break; - } - cp++; - } - - } else{ - radix = 8; - while (*cp) { - c = tolower((unsigned char)*cp); - if (isdigit(c) && c < '8') { - num64 = (c - '0') + (num64 * radix); - } else { - break; - } - cp++; - } - } - } - - if (negative) { - return 0 - num64; - } - return num64; -} - -#endif /* BLD_FEATURE_INT64 */ -/******************************************************************************/ -/* - * Convert the variable to an Integer type. Only works for primitive types. - */ - -int mprVarToInteger(const MprVar *vp) -{ - mprAssert(vp); - - switch (vp->type) { - case MPR_TYPE_UNDEFINED: - case MPR_TYPE_NULL: - case MPR_TYPE_STRING_CFUNCTION: - case MPR_TYPE_CFUNCTION: - case MPR_TYPE_FUNCTION: - case MPR_TYPE_OBJECT: - case MPR_TYPE_PTR: - return 0; - - case MPR_TYPE_BOOL: - return (vp->boolean) ? 1 : 0; - -#if BLD_FEATURE_FLOATING_POINT - case MPR_TYPE_FLOAT: - if (mprIsNan(vp->floating)) { - return 0; - } - return (int) vp->floating; -#endif - - case MPR_TYPE_INT: - return vp->integer; - -#if BLD_FEATURE_INT64 - case MPR_TYPE_INT64: - return (int) vp->integer64; -#endif - - case MPR_TYPE_STRING: - return mprParseInteger(vp->string); - } - - /* Not reached */ - return 0; -} - -/******************************************************************************/ -/* - * Convert the string buffer to an Integer. - */ - -int mprParseInteger(char *str) -{ - char *cp; - int num; - int radix, c, negative; - - mprAssert(str); - - cp = str; - num = 0; - negative = 0; - - if (*cp == '-') { - cp++; - negative = 1; - } - - /* - * Parse a number. Observe hex and octal prefixes (0x, 0) - */ - if (*cp != '0') { - /* - * Normal numbers (Radix 10) - */ - while (isdigit((int) *cp)) { - num = (*cp - '0') + (num * 10); - cp++; - } - } else { - cp++; - if (tolower((unsigned char)*cp) == 'x') { - cp++; - radix = 16; - while (*cp) { - c = tolower((unsigned char)*cp); - if (isdigit(c)) { - num = (c - '0') + (num * radix); - } else if (c >= 'a' && c <= 'f') { - num = (c - 'a') + (num * radix); - } else { - break; - } - cp++; - } - - } else{ - radix = 8; - while (*cp) { - c = tolower((unsigned char)*cp); - if (isdigit(c) && c < '8') { - num = (c - '0') + (num * radix); - } else { - break; - } - cp++; - } - } - } - - if (negative) { - return 0 - num; - } - return num; -} - -/******************************************************************************/ -#if BLD_FEATURE_FLOATING_POINT -/* - * Convert the string buffer to an Floating. - */ - -double mprParseFloat(char *str) -{ - return atof(str); -} - -/******************************************************************************/ - -bool mprIsNan(double f) -{ -#if WIN - return _isnan(f); -#elif VXWORKS - /* FUTURE */ - return (0); -#else - return (f == FP_NAN); -#endif -} -/******************************************************************************/ - -bool mprIsInfinite(double f) -{ -#if WIN - return !_finite(f); -#elif VXWORKS - /* FUTURE */ - return (0); -#else - return (f == FP_INFINITE); -#endif -} - -#endif /* BLD_FEATURE_FLOATING_POINT */ -/******************************************************************************/ - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * End: - * vim:tw=78 - * vim600: sw=4 ts=4 fdm=marker - * vim<600: sw=4 ts=4 - */ |