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module.cpp
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module.cpp
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#include <cstdlib>
#include <cstdio>
#include <cstring>
#include <string>
#include <cstdint>
#include <vector>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <algorithm>
#include <ctime>
#include <chrono>
#include <cassert>
#include <limits>
#include "spfc.hpp"
#include "rbtree.hpp"
#include "haversine.hpp"
#include "redismodule.h"
using namespace std;
#define LONG_LAT_SCALE_FACTOR 1000000
#define RBTREE_ENCODING_VERSION 1
//static const char *date_fmt = "%d-%d-%d"; // MM-DD-YYY
//static const char *time_fmt = "%d:%d:%d"; // HH:MM
static const char *datetime_ifmt = "%d-%d-%dT%d:%d:%d"; // for use with strptime time parsing
static const char *datetime_ofmt = "%Y-%m-%dT%H:%M:%S"; // for use with strftime time parsing
static const char *descr_field = "descr";
static RedisModuleType *RBTreeType;
typedef struct rbtree_t {
RBNode *root;
RedisModuleDict *dict;
RedisModuleDict *obj_dict;
uint64_t object_count;
} RBTree;
/*======================= dyn mem management ===============================*/
void* operator new(size_t sz){
void *ptr = RedisModule_Alloc(sz);
return ptr;
}
void operator delete(void *p){
RedisModule_Free(p);
}
/*================ Aux. RedisModule functions ======================================= */
/* check to see if point defined in Value is contained in query region*/
bool contains(const QueryRegion qr, const Value val){
if (val.x < qr.x_lower || val.x > qr.x_upper)
return false;
else if (val.y < qr.y_lower || val.y > qr.y_upper)
return false;
else if (val.start < qr.t_lower || val.start > qr.t_upper)
return false;
return true;
}
/* cast a query in terms of the spfc function */
int cast_query_region(const QueryRegion qr, Region &r){
r.lower[0] = static_cast<uint64_t>((qr.x_lower + 180.0)*LONG_LAT_SCALE_FACTOR);
r.lower[1] = static_cast<uint64_t>((qr.y_lower + 90.0)*LONG_LAT_SCALE_FACTOR);
r.lower[2] = static_cast<uint64_t>(qr.t_lower);
r.upper[0] = static_cast<uint64_t>((qr.x_upper + 180.0)*LONG_LAT_SCALE_FACTOR);
r.upper[1] = static_cast<uint64_t>((qr.y_upper + 90.0)*LONG_LAT_SCALE_FACTOR);
r.upper[2] = static_cast<uint64_t>(qr.t_upper);
return 0;
}
int ParseLongLat(RedisModuleString *xstr, RedisModuleString *ystr, double &x, double &y){
if (RedisModule_StringToDouble(xstr, &x) == REDISMODULE_ERR)
return -1;
if (RedisModule_StringToDouble(ystr, &y) == REDISMODULE_ERR)
return -1;
return 0;
}
int ParseDateTime(RedisModuleString *datetimestr, time_t &epoch){
const char *ptr = RedisModule_StringPtrLen(datetimestr, NULL);
if (ptr == NULL) return -1;
setenv("TZ", "GMT", 1);
tm datetime;
memset(&datetime, 0, sizeof(tm));
if (sscanf(ptr, datetime_ifmt, &datetime.tm_year, &datetime.tm_mon, &datetime.tm_mday,
&datetime.tm_hour, &datetime.tm_min, &datetime.tm_sec) < 5) return -1;
datetime.tm_mon -= 1;
datetime.tm_year = (datetime.tm_year >= 2000) ? datetime.tm_year%100 + 100 : datetime.tm_year%100;
if (datetime.tm_mon < 0 || datetime.tm_mon > 11) return -1;
if (datetime.tm_mday <= 0 || datetime.tm_mday > 31) return -1;
if (datetime.tm_year < 0 || datetime.tm_year > 300) return -1;
epoch = mktime(&datetime);
unsetenv("TZ");
return 0;
}
int ParseRadius(RedisModuleString *radius_str, RedisModuleString *unit_str, double &radius){
double val;
if (RedisModule_StringToDouble(radius_str, &val) == REDISMODULE_ERR)
return -1;
const char *str = RedisModule_StringPtrLen(unit_str, NULL);
if (strcmp(str, "mi") == 0){
val *= 1.60934;
radius = val;
} else if (strcmp(str, "m") == 0){
val /= 1000;
radius = val;
} else if (strcmp(str, "ft") == 0){
val /= 3281;
radius = val;
} else if (strcmp(str, "km") == 0){
radius = val;
} else {
return -1;
}
return 0;
}
void InsertObjectInList(RBTree *tree, long long obj_id, RBNode *x){
int nokey;
multimap<time_t, RBNode*> *mmap =
(multimap<time_t, RBNode*>*)RedisModule_DictGetC(tree->obj_dict,
&obj_id, sizeof(long long), &nokey);
if (nokey || mmap == NULL){
mmap = new multimap<time_t, RBNode*>();
RedisModule_DictReplaceC(tree->obj_dict, &obj_id, sizeof(long long), mmap);
}
mmap->insert({x->val.start, x});
tree->object_count++;
return;
}
void RemoveObjectFromList(RBTree *tree, long long obj_id, RBNode *x){
int nokey;
multimap<time_t, RBNode*> *mmap =
(multimap<time_t, RBNode*>*)RedisModule_DictGetC(
tree->obj_dict, &obj_id, sizeof(long long), &nokey);
if (nokey || mmap == NULL) return;
auto range = mmap->equal_range(x->val.start);
for (auto iter=range.first;iter != range.second;iter++){
if (iter->second == x){
mmap->erase(iter->first);
break;
}
}
return;
}
int get_next_id(RedisModuleCtx *ctx, RedisModuleString *keystr, long long &id){
id = RedisModule_Milliseconds() << 32;
id |= (int64_t)(rand() & 0xffff0000);
string key = RedisModule_StringPtrLen(keystr, NULL);
key += ":counter";
RedisModuleCallReply *reply = RedisModule_Call(ctx, "INCRBY", "cl", key.c_str(), 1);
if (RedisModule_CallReplyType(reply) != REDISMODULE_REPLY_INTEGER){
return REDISMODULE_ERR;
}
id |= (0x0000ffffULL & RedisModule_CallReplyInteger(reply));
RedisModule_FreeCallReply(reply);
return REDISMODULE_OK;
}
/* retrieve a descr field stored in keystr+id hash redis datatype */
RedisModuleString* GetDescriptionField(RedisModuleCtx *ctx, RedisModuleString *keystr, long long id){
string idstr = RedisModule_StringPtrLen(keystr, NULL);
idstr += ":" + to_string(id);
RedisModuleString *keyidstr = RedisModule_CreateString(ctx, idstr.c_str(), idstr.length());
RedisModuleKey *key = (RedisModuleKey*)RedisModule_OpenKey(ctx, keyidstr, REDISMODULE_READ);
if (RedisModule_KeyType(key) != REDISMODULE_KEYTYPE_HASH){
RedisModule_CloseKey(key);
return NULL;
}
RedisModuleString *descr = NULL;
RedisModule_HashGet(key, REDISMODULE_HASH_CFIELDS, descr_field, &descr, NULL);
RedisModule_CloseKey(key);
return descr;
}
/* set a descr field for a keystr+id redis hash data type */
void SetDescriptionField(RedisModuleCtx *ctx, RedisModuleString *keystr, long long id, RedisModuleString *descr){
string idstr = RedisModule_StringPtrLen(keystr, NULL);
idstr += ":" + to_string(id);
RedisModuleString *keyidstr = RedisModule_CreateString(ctx, idstr.c_str(), idstr.length());
RedisModuleKey *key = (RedisModuleKey*)RedisModule_OpenKey(ctx, keyidstr, REDISMODULE_WRITE);
if (RedisModule_KeyType(key) != REDISMODULE_KEYTYPE_EMPTY){
RedisModule_CloseKey(key);
return;
}
RedisModule_HashSet(key, REDISMODULE_HASH_CFIELDS|REDISMODULE_HASH_NX, descr_field, descr, NULL);
RedisModule_CloseKey(key);
}
void DeleteDescriptionField(RedisModuleCtx *ctx, RedisModuleString *keystr, long long id){
string idstr = RedisModule_StringPtrLen(keystr, NULL);
idstr += ":" + to_string(id);
RedisModuleString *keyidstr = RedisModule_CreateString(ctx, idstr.c_str(), idstr.length());
RedisModuleKey *key = (RedisModuleKey*)RedisModule_OpenKey(ctx, keyidstr, REDISMODULE_WRITE);
if (RedisModule_KeyType(key) != REDISMODULE_KEYTYPE_HASH){
RedisModule_CloseKey(key);
return;
}
RedisModule_HashSet(key, REDISMODULE_HASH_CFIELDS, descr_field, REDISMODULE_HASH_DELETE, NULL);
RedisModule_CloseKey(key);
}
void DeleteDescriptionKey(RedisModuleCtx *ctx, RedisModuleString *keystr, long long id){
string idstr = RedisModule_StringPtrLen(keystr, NULL);
idstr += ":" + to_string(id);
RedisModuleString *keyidstr = RedisModule_CreateString(ctx, idstr.c_str(), idstr.length());
RedisModuleKey *key = (RedisModuleKey*)RedisModule_OpenKey(ctx, keyidstr, REDISMODULE_WRITE);
if (RedisModule_KeyType(key) != REDISMODULE_KEYTYPE_HASH){
RedisModule_CloseKey(key);
return;
}
RedisModule_DeleteKey(key);
RedisModule_CloseKey(key);
}
void DeleteCounterKey(RedisModuleCtx *ctx, RedisModuleString *keystr){
string counterstr = RedisModule_StringPtrLen(keystr, NULL);
counterstr += ":counter";
RedisModuleString *keycounterstr = RedisModule_CreateString(ctx, counterstr.c_str(), counterstr.length());
RedisModuleKey *key = (RedisModuleKey*)RedisModule_OpenKey(ctx, keycounterstr, REDISMODULE_WRITE);
RedisModule_DeleteKey(key);
RedisModule_CloseKey(key);
return;
}
void DeleteKey(RedisModuleCtx *ctx, RedisModuleString *keystr){
RedisModuleKey *key = (RedisModuleKey*)RedisModule_OpenKey(ctx, keystr, REDISMODULE_WRITE);
RedisModule_DeleteKey(key);
RedisModule_CloseKey(key);
return;
}
/*================== Get RBTree with key ================================= */
/* Return the native data type. NULL if does not yet exist, throw -1 exception
if the key exists but for a different type. */
RBTree* GetRBTree(RedisModuleCtx *ctx, RedisModuleString *keystr){
RedisModuleKey *key = (RedisModuleKey*)RedisModule_OpenKey(ctx, keystr, REDISMODULE_READ);
int keytype = RedisModule_KeyType(key);
if (keytype == REDISMODULE_KEYTYPE_EMPTY){
RedisModule_CloseKey(key);
return NULL;
}
if (RedisModule_ModuleTypeGetType(key) != RBTreeType){
RedisModule_CloseKey(key);
throw -1;
}
RBTree *tree = (RBTree*)RedisModule_ModuleTypeGetValue(key);
RedisModule_CloseKey(key);
return tree;
}
/* Create a new data type, throw -1 exception if already exists for a different type */
RBTree* CreateRBTree(RedisModuleCtx *ctx, RedisModuleString *keystr){
RedisModuleKey *key = (RedisModuleKey*)RedisModule_OpenKey(ctx, keystr, REDISMODULE_WRITE);
int keytype = RedisModule_KeyType(key);
if (keytype != REDISMODULE_KEYTYPE_EMPTY && RedisModule_ModuleTypeGetType(key) != RBTreeType){
RedisModule_CloseKey(key);
throw -1;
}
RBTree *tree = NULL;
if (keytype == REDISMODULE_KEYTYPE_EMPTY){
tree = (RBTree*)RedisModule_Calloc(1, sizeof(RBTree));
tree->dict = RedisModule_CreateDict(NULL);
tree->obj_dict = RedisModule_CreateDict(NULL);
RedisModule_ModuleTypeSetValue(key, RBTreeType, tree);
} else {
tree = (RBTree*)RedisModule_ModuleTypeGetValue(key);
}
RedisModule_CloseKey(key);
return tree;
}
/* =============== module tree manipulation functions ==================*/
RBNode* delete_min(RedisModuleCtx *ctx, RBTree *tree, RBNode *node){
if (node->left == NULL) {
RedisModule_DictDelC(tree->dict, &(node->val.id), sizeof(long long), NULL);
if (node->val.obj_id > 0) RemoveObjectFromList(tree, node->val.obj_id, node);
delete node;
return NULL;
}
if (!IsRed(node->left) && !IsRed(node->left->left))
node = MoveRedLeft(node);
node->left = delete_min(ctx, tree, node->left);
return balance(node);
}
void RBTreeDeleteMin(RedisModuleCtx *ctx, RBTree *tree){
if (tree == NULL || tree->root == NULL)
return;
if (!IsRed(tree->root->left) && !IsRed(tree->root->right))
tree->root->red = true;
tree->root = delete_min(ctx, tree, tree->root);
if (tree->root != NULL)
tree->root->red = false;
}
RBNode* delete_key(RedisModuleCtx *ctx, RBTree *tree, RBNode *node, Seqn s, long long id, int level = 0){
if (node == NULL) return NULL;
if (cmpseqnums(s, node->s) < 0 || (cmpseqnums(s, node->s) == 0 && id != node->val.id)){
if (node->left != NULL && !IsRed(node->left) && !IsRed(node->left->left)){
node = MoveRedLeft(node);
}
node->left = delete_key(ctx, tree, node->left, s, id, level+1);
} else {
if (IsRed(node->left)) node = RotateRight(node);
if (cmpseqnums(s, node->s) == 0 && id == node->val.id && node->right == NULL){
if (node->val.obj_id > 0) RemoveObjectFromList(tree, node->val.obj_id, node);
RedisModule_DictDelC(tree->dict, &id, sizeof(long long), NULL);
delete node;
return NULL;
}
if (node->right != NULL && !IsRed(node->right) && !IsRed(node->right->left))
node = MoveRedRight(node);
if (cmpseqnums(s, node->s) == 0){
if (id == node->val.id){
RBNode *xnode = minimum(node->right);
if (node->val.obj_id > 0) RemoveObjectFromList(tree, node->val.obj_id, node);
node->s = xnode->s;
node->val = xnode->val;
node->maxseqn = xnode->maxseqn;
node->right = delete_min(ctx, tree, node->right);
if (node->right) node->maxseqn = node->right->maxseqn;
if (node->val.obj_id > 0) InsertObjectInList(tree, node->val.obj_id, node);
node->count = 1 + GetNodeCount(node->left) + GetNodeCount(node->right);
RedisModule_DictDelC(tree->dict, &id, sizeof(long long), NULL);
RedisModule_DictReplaceC(tree->dict, &(node->val.id), sizeof(long long), node);
}
} else if (cmpseqnums(s, node->maxseqn) <= 0){
node->right = delete_key(ctx, tree, node->right, s, id, level+1);
}
}
node->count = 1 + GetNodeCount(node->left) + GetNodeCount(node->right);
return balance(node);
}
int RBTreeDelete(RedisModuleCtx *ctx, RBTree *tree, Seqn s, long long eventid){
if (tree == NULL || tree->root == NULL) return -1;
if (!IsRed(tree->root->left) && !IsRed(tree->root->right))
tree->root->red = true;
tree->root = delete_key(ctx, tree, tree->root, s, eventid);
if (tree->root != NULL) tree->root->red = false;
return 0;
}
RBNode* rbtree_insert(RBTree *tree, RBNode *node, Seqn s, Value val, int level=0){
if (node == NULL){
RBNode *x = new RBNode();
x->s = s;
x->maxseqn = s;
x->val = val;
x->red = true;
x->count = 1;
x->left = x->right = NULL;
if (x->val.obj_id > 0) InsertObjectInList(tree, x->val.obj_id, x);
RedisModule_DictSetC(tree->dict, &(x->val.id), sizeof(long long), x);
return x;
}
if (cmpseqnums(s, node->s) <= 0){
node->left = rbtree_insert(tree, node->left, s, val, level+1);
} else {
node->right = rbtree_insert(tree, node->right, s, val, level+1);
node->maxseqn = node->right->maxseqn;
}
if (IsRed(node->right) && !IsRed(node->left)) node = RotateLeft(node);
if (IsRed(node->left) && IsRed(node->left->left)) node = RotateRight(node);
if (IsRed(node->left) && IsRed(node->right)) FlipColors(node);
node->count = 1 + GetNodeCount(node->left) + GetNodeCount(node->right);
return node;
}
int RBTreeInsert(RBTree *tree, Seqn s, Value val){
if (tree == NULL) return -1;
RBNode *node = rbtree_insert(tree, tree->root, s, val);
if (node == NULL) return -1;
node->red = false;
tree->root = node;
return 0;
}
/* in-order travsal */
void print_tree(RedisModuleCtx *ctx, RedisModuleString *keystr, RBNode *node, int level = 0){
if (node == NULL) return;
// print left
print_tree(ctx, keystr, node->left, level+1);
// print node
double x = node->val.x;
double y = node->val.y;
char scratch[64];
strftime(scratch, 64, datetime_ofmt, gmtime(&(node->val.start)));
RedisModuleString *node_descr = GetDescriptionField(ctx, keystr, node->val.id);
RedisModule_Log(ctx, "info", "print (level %d) %s %.6f/%.6f id=%lld %s red=%d cat=%ld",
level, node_descr, x, y, node->val.id, scratch, node->red, node->val.cat);
RedisModule_FreeString(ctx, node_descr);
// print right
print_tree(ctx, keystr, node->right, level+1);
}
long long RBTreePrint(RedisModuleCtx *ctx, RedisModuleString *keystr){
RBTree *tree = GetRBTree(ctx, keystr);
if (tree == NULL || tree->root == NULL){
RedisModule_Log(ctx, "info", "%s is empty", RedisModule_StringPtrLen(keystr, NULL));
return 0;
}
RedisModule_Log(ctx, "info", "print tree: %s", RedisModule_StringPtrLen(keystr, NULL));
print_tree(ctx, keystr, tree->root);
return tree->root->count;
}
/* non-recursive implementation */
int RBTreeQuery(RBTree *tree, const QueryRegion qr, vector<Result> &results){
Region r;
cast_query_region(qr, r);
Seqn prev, next;
if (!next_match(r, prev, next)) return 0;
stack<NodeSt> s;
if (tree->root) s.push({tree->root, 0});
while (!s.empty()){
if (s.top().visited == 0){ /* if needed, visit left */
// visit left
s.top().visited++;
if (s.top().node->left && cmpseqnums(next, s.top().node->s) <= 0){
s.push({s.top().node->left, 0});
}
} else if (s.top().visited == 1){ /* check node. if needed, visit right */
s.top().visited++;
next = s.top().node->s;
Seqn prev = next;
if (contains(qr, s.top().node->val)){
results.push_back({s.top().node->s, s.top().node->val});
} else if (!next_match(r, prev, next))
break;
if (s.top().node->right && cmpseqnums(next, s.top().node->maxseqn) <= 0){
s.push({s.top().node->right, 0});
}
} else { /* both left right visited */
s.pop();
}
}
return 0;
}
/* ------------------ RBTree type methods -----------------------------*/
extern "C" void* RBTreeTypeRdbLoad(RedisModuleIO *rdb, int encver){
if (encver != RBTREE_ENCODING_VERSION){
RedisModule_LogIOError(rdb, "warning", "rdbload: unnable to encode for encver %d", encver);
return NULL;
}
RBTree *tree = (RBTree*)RedisModule_Calloc(1, sizeof(RBTree));
tree->dict = RedisModule_CreateDict(NULL);
tree->obj_dict = RedisModule_CreateDict(NULL);
tree->object_count = 0;
uint64_t n_nodes = RedisModule_LoadUnsigned(rdb);
RedisModule_LogIOError(rdb, "debug", "rdbload: %llu nodes", n_nodes);
for (uint64_t i=0;i<n_nodes;i++){
Seqn s; // load seqn
s.arr[0] = RedisModule_LoadUnsigned(rdb);
s.arr[1] = RedisModule_LoadUnsigned(rdb);
s.arr[2] = RedisModule_LoadUnsigned(rdb);
Value val; // load id, longitude, latitude, start, end, descr
val.x = RedisModule_LoadDouble(rdb);
val.y = RedisModule_LoadDouble(rdb);
val.id = RedisModule_LoadSigned(rdb);
val.obj_id = RedisModule_LoadSigned(rdb);
val.cat = RedisModule_LoadUnsigned(rdb);
val.start = static_cast<time_t>(RedisModule_LoadSigned(rdb));
val.end = static_cast<time_t>(RedisModule_LoadSigned(rdb));
if (RBTreeInsert(tree, s, val) < 0){
RedisModule_LogIOError(rdb, "warning", "rdbload: unable to insert %ld", val.id);
return NULL;
}
}
return (void*)tree;
}
extern "C" void RBTreeTypeRdbSave(RedisModuleIO *rdb, void *value){
RBTree *tree = (RBTree*)value;
RedisModuleDictIter *iter = RedisModule_DictIteratorStartC(tree->dict, "^", NULL, 0);
uint64_t sz = RedisModule_DictSize(tree->dict);
RedisModule_SaveUnsigned(rdb, sz);
RedisModule_LogIOError(rdb, "debug", "rdbsave: %llu nodes", sz);
unsigned char *dict_key;
RBNode *node;
while ((dict_key = (unsigned char*)RedisModule_DictNextC(iter, NULL, (void**)&node)) != NULL){
// save seqn
RedisModule_SaveUnsigned(rdb, node->s.arr[0]);
RedisModule_SaveUnsigned(rdb, node->s.arr[1]);
RedisModule_SaveUnsigned(rdb, node->s.arr[2]);
// long./lat.
RedisModule_SaveDouble(rdb, node->val.x);
RedisModule_SaveDouble(rdb, node->val.y);
// id
RedisModule_SaveSigned(rdb, node->val.id);
RedisModule_SaveSigned(rdb, node->val.obj_id);
RedisModule_SaveUnsigned(rdb, node->val.cat);
// time start/end
RedisModule_SaveSigned(rdb, node->val.start);
RedisModule_SaveSigned(rdb, node->val.end);
}
RedisModule_DictIteratorStop(iter);
}
extern "C" void RBTreeTypeAofRewrite(RedisModuleIO *aof, RedisModuleString *key, void *value){
RBTree *tree = (RBTree*)value;
uint64_t sz = RedisModule_DictSize(tree->dict);
RedisModule_LogIOError(aof, "debug", "AofRewrite: %llu nodes", sz);
RedisModuleDictIter *iter = RedisModule_DictIteratorStartC(tree->dict, "^", NULL, 0);
char s1[16];
char s2[16];
char px[16];
char py[16];
unsigned char *dict_key = NULL;
RBNode *node = NULL;
while ((dict_key = (unsigned char*)RedisModule_DictNextC(iter, NULL, (void**)&node)) != NULL){
strftime(s1, 16, "%Y-%m-%dT%H:%M", gmtime(&(node->val.start)));
strftime(s2, 16, "%Y-%m-%dT%H:%M", gmtime(&(node->val.end)));
snprintf(px, 16, "%.6f", node->val.x);
snprintf(py, 16, "%.6f", node->val.y);
if (node->val.obj_id == 0){
RedisModule_EmitAOF(aof, "reventis.insertrepl", "sccccl",
key, px, py, s1, s2, node->val.id);
} else {
RedisModule_EmitAOF(aof, "reventis.updaterepl", "scccll",
key, px, py, s1, node->val.obj_id, node->val.id);
}
unsigned long long cat_id = 0x0001ULL;
long long pos = 1;
while (cat_id){
if (cat_id & node->val.cat){
RedisModule_EmitAOF(aof, "reventis.addcategory", "sl", key, pos);
}
cat_id <<= 1;
pos++;
}
}
RedisModule_DictIteratorStop(iter);
}
extern "C" void RBTreeTypeFree(void *value){
RBTree *tree = (RBTree*)value;
RedisModuleDictIter *iter = RedisModule_DictIteratorStartC(tree->dict, "^", NULL, 0);
long long *dict_key = NULL;
size_t keylen;
RBNode *node = NULL;
while ((dict_key = (long long*)RedisModule_DictNextC(iter, &keylen, (void**)&node)) != NULL){
delete node;
}
RedisModule_DictIteratorStop(iter);
iter = RedisModule_DictIteratorStartC(tree->obj_dict, "^", NULL, 0);
multimap<time_t, RBNode*> *mm = NULL;
while ((dict_key = (long long*)RedisModule_DictNextC(iter, &keylen, (void**)&mm)) != NULL){
delete mm;
}
RedisModule_DictIteratorStop(iter);
RedisModule_FreeDict(NULL, tree->dict);
RedisModule_FreeDict(NULL, tree->obj_dict);
}
extern "C" size_t RBTreeTypeMemUsage(const void *value){
RBTree *tree = (RBTree*)value;
uint64_t n_nodes = RedisModule_DictSize(tree->dict);
uint64_t n_objects = 0;
RedisModuleDictIter *iter = RedisModule_DictIteratorStartC(tree->obj_dict, "^", NULL, 0);
unsigned char *dict_key = NULL;
size_t keylen;
multimap<time_t, RBNode*> *mmap;
while ((dict_key = (unsigned char*)RedisModule_DictNextC(iter, &keylen, (void**)&mmap)) != NULL){
n_objects += mmap->size();
}
RedisModule_DictIteratorStop(iter);
return n_nodes*sizeof(RBNode) + n_objects*(sizeof(RBNode*) + sizeof(long long));
}
extern "C" void RBTreeTypeDigest(RedisModuleDigest *digest, void *value){
REDISMODULE_NOT_USED(digest);
REDISMODULE_NOT_USED(value);
}
/* ---------------RedisCommand functions ------------------------------*/
int RBTreeQueryResults(RedisModuleCtx *ctx, RedisModuleString *key,
RedisModuleString *x1str, RedisModuleString *x2str,
RedisModuleString *y1str, RedisModuleString *y2str,
RedisModuleString *startdatetimestr, RedisModuleString *enddatetimestr,
vector<Result> &results){
double x1, y1;
if (ParseLongLat(x1str, y1str, x1, y1) < 0){
RedisModule_ReplyWithError(ctx, "ERR - Unable to parse lower longitude/latitude arg values");
return REDISMODULE_ERR;
}
double x2, y2;
if (ParseLongLat(x2str, y2str, x2, y2) < 0){
RedisModule_ReplyWithError(ctx, "ERR - Unable to parse upper longitude/latitude arg values");
return REDISMODULE_ERR;
}
if (x1 < -180.0 || x1 > 180.0 || x2 < -180.0 || x2 > 180.0){
RedisModule_ReplyWithError(ctx, "ERR - longitude/latitude arg values out of range");
return REDISMODULE_ERR;
}
time_t t1, t2;
if (ParseDateTime(startdatetimestr, t1) < 0){
RedisModule_ReplyWithError(ctx, "ERR - Unable to parse lower date time arg values");
return REDISMODULE_ERR;
}
if (ParseDateTime(enddatetimestr, t2) < 0){
RedisModule_ReplyWithError(ctx, "ERR - Unable to parse upper date time arg values");
return REDISMODULE_ERR;
}
if (t1 > t2){
RedisModule_ReplyWithError(ctx, "ERR - start time cannot be later than end time");
return REDISMODULE_ERR;
}
RBTree *tree = NULL;
try {
tree = GetRBTree(ctx, key);
if (tree == NULL){
RedisModule_ReplyWithError(ctx, "ERR - No such key");
return REDISMODULE_ERR;
}
} catch (int &e){
RedisModule_ReplyWithError(ctx, "key already exists for different type");
return REDISMODULE_ERR;
}
QueryRegion qr;
qr.x_lower = x1;
qr.x_upper = x2;
qr.y_lower = y1;
qr.y_upper = y2;
qr.t_lower = t1;
qr.t_upper = t2;
if (RBTreeQuery(tree, qr, results) < 0){
RedisModule_ReplyWithError(ctx, "Err - Unable to query");
return REDISMODULE_ERR;
}
return REDISMODULE_OK;
}
int RBTreeInsertCommon(RedisModuleCtx *ctx, RedisModuleString *keystr,
RedisModuleString *longitudestr, RedisModuleString *latitudestr,
RedisModuleString *startdatetimestr, RedisModuleString *enddatetimestr,
unsigned long long cat_id, long long event_id){
double x, y;
if (ParseLongLat(longitudestr, latitudestr, x, y) < 0){
RedisModule_ReplyWithError(ctx, "ERR - bad longitude/latitude arg values");
return REDISMODULE_ERR;
}
if (x < -180.0 || x > 180.0 || y < -90.0 || y > 90.0){
RedisModule_ReplyWithError(ctx, "ERR - longitude/latitude args out of range");
return REDISMODULE_ERR;
}
time_t t1;
if (ParseDateTime(startdatetimestr, t1) < 0){
RedisModule_ReplyWithError(ctx, "ERR - Unable to parse start time");
return REDISMODULE_ERR;
}
time_t t2;
if (ParseDateTime(enddatetimestr, t2) < 0){
RedisModule_ReplyWithError(ctx, "ERR - Unable to parse end time");
return REDISMODULE_ERR;
}
if (t1 > t2){
RedisModule_ReplyWithError(ctx, "ERR - start time cannot be later than end time");
return REDISMODULE_ERR;
}
Point pnt;
pnt.arr[0] = static_cast<uint64_t>((x+180.0)*LONG_LAT_SCALE_FACTOR);
pnt.arr[1] = static_cast<uint64_t>((y+90.0)*LONG_LAT_SCALE_FACTOR);
pnt.arr[2] = static_cast<uint64_t>(t1);
Value val;
val.x = x;
val.y = y;
val.cat = cat_id;
val.id = event_id;
val.start = t1;
val.end = t2;
Seqn s;
spfc_encode(pnt, s);
RBTree *tree = NULL;
try {
tree = GetRBTree(ctx, keystr);
if (tree == NULL) tree = CreateRBTree(ctx, keystr);
} catch (int &e){
RedisModule_ReplyWithError(ctx, "ERR - key exists for different type. Delete first.");
return REDISMODULE_ERR;
}
if (RBTreeInsert(tree, s, val) < 0){
RedisModule_ReplyWithError(ctx, "ERR - Insert failed");
return REDISMODULE_ERR;
}
RedisModule_ReplyWithLongLong(ctx, event_id);
return REDISMODULE_OK;
}
/* args: key longitude latitude datetime-start datetime-end [id] */
extern "C" int RBTreeInsertRepl_RedisCmd(RedisModuleCtx *ctx, RedisModuleString **argv, int argc){
if (argc < 6 || argc > 7) return RedisModule_WrongArity(ctx);
RedisModule_AutoMemory(ctx);
long long event_id;
if (argc == 6){
if (get_next_id(ctx, argv[1], event_id) == REDISMODULE_ERR){
RedisModule_ReplyWithError(ctx, "ERR - unable to assign event id");
return REDISMODULE_ERR;
}
} else {
if (RedisModule_StringToLongLong(argv[6], &event_id) == REDISMODULE_ERR){
RedisModule_ReplyWithError(ctx, "ERR - unable to parse event id");
return REDISMODULE_ERR;
}
}
int rc = RBTreeInsertCommon(ctx, argv[1], argv[2], argv[3], argv[4], argv[5], 0, event_id);
if (rc == REDISMODULE_ERR) return REDISMODULE_ERR;
rc = RedisModule_Replicate(ctx, "reventis.insertrepl", "sssssl",
argv[1], argv[2], argv[3], argv[4], argv[5], event_id);
if (rc == REDISMODULE_ERR){
RedisModule_Log(ctx, "warning", "Unable to replicate for id %lld", event_id);
return REDISMODULE_ERR;
}
return REDISMODULE_OK;
}
/* args: key longitude latitude datetime-start datetime-end title-description [id]*/
/* an optional event_id argument is included for replication commands */
/* return event-id assigned to entry */
extern "C" int RBTreeInsert_RedisCmd(RedisModuleCtx *ctx, RedisModuleString **argv, int argc){
if (argc < 7 || argc > 8) return RedisModule_WrongArity(ctx);
RedisModule_AutoMemory(ctx);
long long event_id;
if (argc == 7){
if (get_next_id(ctx, argv[1], event_id) == REDISMODULE_ERR){
RedisModule_ReplyWithError(ctx, "ERR - unable to assign event id");
return REDISMODULE_ERR;
}
} else {
if (RedisModule_StringToLongLong(argv[7], &event_id) == REDISMODULE_ERR){
RedisModule_ReplyWithError(ctx, "ERR - unable to parse event id");
return REDISMODULE_ERR;
}
}
int rc = RBTreeInsertCommon(ctx, argv[1], argv[2], argv[3], argv[4], argv[5], 0, event_id);
if (rc == REDISMODULE_ERR) return REDISMODULE_ERR;
SetDescriptionField(ctx, argv[1], event_id, argv[6]);
/* replicate command with eventid tacked on as last argument */
rc = RedisModule_Replicate(ctx, "reventis.insert", "ssssssl",
argv[1], argv[2], argv[3], argv[4], argv[5], argv[6], event_id);
if (rc == REDISMODULE_ERR){
RedisModule_Log(ctx, "warning", "Unable to replicate for id %ld", event_id);
return REDISMODULE_ERR;
}
return REDISMODULE_OK;
}
/* args: mytree eventid cat_id */
/* add=true to add a category, add=false to remove category*/
int ModifyCategories(RedisModuleCtx *ctx, RedisModuleString **argv, int argc, bool add=true){
RedisModule_AutoMemory(ctx);
RedisModuleString *keystr = argv[1];
long long event_id;
if (RedisModule_StringToLongLong(argv[2], &event_id) != REDISMODULE_OK){
RedisModule_ReplyWithError(ctx, "ERR - Unable to parse id arg value");
return REDISMODULE_ERR;
}
RBTree *tree = NULL;
try {
tree = GetRBTree(ctx, keystr);
if (tree == NULL){
RedisModule_ReplyWithError(ctx, "ERR - No such key");
return REDISMODULE_ERR;
}
} catch (int &e){
RedisModule_ReplyWithError(ctx, "ERR - Key exists for different type");
return REDISMODULE_ERR;
}
int nokey;
RBNode *idnode = (RBNode*)RedisModule_DictGetC(tree->dict, (void*)&event_id, sizeof(event_id), &nokey);
if (nokey || idnode == NULL){
RedisModule_ReplyWithError(ctx, "ERR - no such node");
return REDISMODULE_ERR;
}
for (int i=3;i<argc;i++){
long long cat_id;
if (RedisModule_StringToLongLong(argv[i], &cat_id) != REDISMODULE_OK){
RedisModule_ReplyWithError(ctx, "ERR - unable to parse cat id value");
return REDISMODULE_ERR;
}
if (add){
idnode->val.cat |= 0x0001ULL << (cat_id-1);
} else {
idnode->val.cat &= ~0x0001ULL << (cat_id-1);
}
}
RedisModule_Log(ctx, "debug", "modify category for node - %llx", idnode->val.cat);
RedisModule_ReplyWithSimpleString(ctx, "OK");
RedisModule_ReplicateVerbatim(ctx);
return REDISMODULE_OK;
}
/* args: mytree event_id [cat_id...}]*/
extern "C" int RBTreeAddCategory_RedisCmd(RedisModuleCtx *ctx, RedisModuleString **argv, int argc){
if (argc < 4) return RedisModule_WrongArity(ctx);
return ModifyCategories(ctx, argv, argc, true);
}
/* args: mytree event_id [cat_id...]*/
extern "C" int RBTreeRemoveCategory_RedisCmd(RedisModuleCtx *ctx, RedisModuleString **argv, int argc){
if (argc < 4) return RedisModule_WrongArity(ctx);
return ModifyCategories(ctx, argv, argc, false);
}
/* args: mytree event_id */
extern "C" int RBTreeLookup_RedisCmd(RedisModuleCtx *ctx, RedisModuleString **argv, int argc){
if (argc != 3) return RedisModule_WrongArity(ctx);
RedisModule_AutoMemory(ctx);
RedisModuleString *keystr = argv[1];
long long event_id;
if (RedisModule_StringToLongLong(argv[2], &event_id) == REDISMODULE_ERR){
RedisModule_ReplyWithError(ctx, "ERR - Unable to parse id arg value");
return REDISMODULE_ERR;
}
RBTree *tree = NULL;
try {
tree = GetRBTree(ctx, keystr);
if (tree == NULL){
RedisModule_ReplyWithError(ctx, "ERR - No such key");
return REDISMODULE_ERR;
}
} catch (int &e){
RedisModule_ReplyWithError(ctx, "ERR - Key exists for different type");
return REDISMODULE_ERR;
}
int nokey;
RBNode *idnode = (RBNode*)RedisModule_DictGetC(tree->dict, (void*)&event_id, sizeof(event_id), &nokey);
if (nokey || idnode == NULL){
RedisModule_ReplyWithNull(ctx);
return REDISMODULE_OK;
}
char s1[64];
char s2[64];
strftime(s1, 64, datetime_ofmt, gmtime(&(idnode->val.start)));
strftime(s2, 64, datetime_ofmt, gmtime(&(idnode->val.end)));
RedisModuleString *descr = GetDescriptionField(ctx, keystr, event_id);
RedisModule_ReplyWithArray(ctx, 7);
RedisModule_ReplyWithString(ctx, descr);
RedisModule_ReplyWithLongLong(ctx, idnode->val.id);
RedisModule_ReplyWithLongLong(ctx, idnode->val.obj_id);
RedisModule_ReplyWithDouble(ctx, idnode->val.x);
RedisModule_ReplyWithDouble(ctx, idnode->val.y);
RedisModule_ReplyWithStringBuffer(ctx, s1, strlen(s1)+1);
RedisModule_ReplyWithStringBuffer(ctx, s2, strlen(s2)+1);
return REDISMODULE_OK;
}
/* args: mytree eventid */
extern "C" int RBTreeDelete_RedisCmd(RedisModuleCtx *ctx, RedisModuleString **argv, int argc){
if (argc != 3) return RedisModule_WrongArity(ctx);
RedisModule_AutoMemory(ctx);
chrono::time_point<chrono::high_resolution_clock> start = chrono::high_resolution_clock::now();
RedisModuleString *keystr = argv[1];