#include <host_tuple.h>
#include <fta.h>
+#include<map>
+
// for htonl,ntohl
#include <netinet/in.h>
str->length = 0;
}
+// Make the vstring safe to destroy even if its never initialized
+// (e.g. stack-allocated groups containing strings)
+void hfta_vstr_init(vstring * str) {
+ str->length = 0;
+}
gs_retval_t hfta_vstr_length(vstring *str) {
return str->length;
}
// Assume that SRC is either INTERNAL or SHALLOW_COPY
-void hfta_vstr_assign_with_copy_in_tuple(vstring32 * target, vstring * src,
- gs_sp_t data_offset, gs_retval_t int_offset) {
+void hfta_vstr_assign_with_copy_in_tuple(vstring32 * target,
+ const vstring * src, gs_sp_t data_offset, gs_retval_t int_offset) {
target->length = src->length;
target->offset = int_offset;
target->reserved = PACKED;
// Ted wrote the following function.
// make deep copy of src. Assume that dst is already empty.
// Assume that SRC is either INTERNAL or SHALLOW_COPY
-void hfta_vstr_assign_with_copy(vstring *dst, vstring *src){
+void hfta_vstr_assign_with_copy(vstring *dst, const vstring *src){
dst->length=src->length;
if(src->length){
dst->offset=(gs_p_t)malloc(dst->length);
// Ted wrote the following function.
// Make a deep copy of src. garbage collect dst if needed.
// Assume that SRC is either INTERNAL or SHALLOW_COPY
-void hfta_vstr_replace(vstring *dst, vstring *src){
+void hfta_vstr_replace(vstring *dst, const vstring *src){
hfta_vstr_destroy(dst);
hfta_vstr_assign_with_copy(dst,src);
}
+#define HFTA_VSTR_LHASHFUNC_PRIME 12916008961267169387ull
+gs_uint64_t hfta_vstr_long_hashfunc(const vstring *s) {
+ gs_uint64_t hash_code;
+ gs_int32_t n_steps;
+ gs_int32_t substr_len;
+ gs_int32_t j, k;
+ gs_uint64_t sub_hash;
+ gs_sp_t sv;
+
+ sv=(gs_sp_t)(s->offset);
+ hash_code = 0;
+ n_steps = s->length / 4;
+ if(4*n_steps < s->length) n_steps++;
+
+ for (j = 0; j < n_steps; j++) {
+ if(4*(j+1) < s->length) substr_len = 4;
+ else substr_len = s->length - 4*j;
+
+ sub_hash = 0;
+ for(k=0;k<4;k++){
+ if(k < substr_len)
+ sub_hash = (sub_hash << 4) + *sv;
+ else
+ sub_hash = (sub_hash << 4);
+ sv++;
+ }
+
+ hash_code = (sub_hash + hash_code * HFTA_VSTR_LHASHFUNC_PRIME);
+ }
+
+ return(hash_code);
+}
+
#define HFTA_VSTR_HASHFUNC_PRIME 2995999
gs_uint32_t hfta_vstr_hashfunc(const vstring *s) {
gs_uint32_t hash_code;
gs_uint32_t k, sub_hash;
gs_sp_t sv;
-
sv=(gs_sp_t)(s->offset);
hash_code = 0;
n_steps = s->length / 4;
return(hash_code);
}
+
// return negative if s1 < s2, 0 if s1==s2, positive if s1>s2
gs_retval_t hfta_vstr_compare(const vstring * s1, const vstring * s2) {
gs_int32_t minlen,cmp_ret;
return(s1->length - s2->length);
}
+gs_retval_t hfta_vstr_equal(const vstring * s1, const vstring * s2) {
+ gs_int32_t x;
+
+ if(s1->length != s2->length)
+ return -1;
+
+// cmp_ret=memcmp((void *)s1->offset,(void *)s2->offset,s1->length);
+ for(x=0;x<s1->length;x++) {
+ if (((char *)(s1->offset))[x]!=((char *)(s2->offset))[x]) {
+ return -1;
+ }
+ }
+
+
+ return 0;
+}
+
gs_param_handle_t register_handle_for_str_regex_match_slot_1(vstring* pattern) {
}
+// -------------------------------------------------------
+// map_int_to_string and its support functions, structs
+
+struct int_to_string_map_struct{
+ std::map<gs_int64_t, vstring> i2s_map;
+ std::string fname;
+ vstring empty_string;
+};
+
+gs_param_handle_t register_handle_for_int_to_string_map_slot_1(vstring *filename){
+ int_to_string_map_struct *map_struct;
+
+ map_struct = new int_to_string_map_struct();
+ if(map_struct == NULL){
+ gslog(LOG_EMERG, "int_to_string_map:: Could not allocate handle memory\n");
+ return 0;
+ }
+
+ map_struct->empty_string.offset = (gs_p_t)malloc(1);
+ map_struct->empty_string.reserved = INTERNAL;
+ map_struct->empty_string.length = 0;
+
+ gs_sp_t filenamec;
+ filenamec = (gs_sp_t)alloca(filename->length+1);
+ if (filenamec==0) {
+ gslog(LOG_EMERG, "int_to_string_map:: Could not allocate filename memory\n");
+ return 0;
+ }
+ memcpy(filenamec,(gs_sp_t)filename->offset,filename->length);
+ filenamec[filename->length]=0;
+ map_struct->fname = filenamec;
+
+ FILE *fl = fopen(filenamec, "r");
+ if(fl==NULL){
+ gslog(LOG_EMERG, "int_to_string_map:: Could not open regex file %s \n",filename);
+ return 0;
+ }
+
+ gs_int32_t buflen = 10000;
+ char buf[buflen], buf_str[buflen];
+ gs_int64_t val;
+ char *fret;
+ fret = fgets(buf, buflen, fl);
+ while(fret != NULL){
+ int nvals = sscanf(buf, "%lld,%s", &val, buf_str);
+ if(nvals >= 2){
+ vstring new_str;
+ new_str.reserved = SHALLOW_COPY;
+ new_str.length = strlen(buf_str);
+ new_str.offset = (gs_p_t)malloc(new_str.length);
+ memcpy((char *)new_str.offset, buf_str, new_str.length);
+ map_struct->i2s_map[val] = new_str;
+ }
+ fret = fgets(buf, buflen, fl);
+ }
+
+ fclose(fl);
+
+ return (gs_param_handle_t) map_struct;
+}
+
+gs_retval_t int_to_string_map(vstring *result, gs_int64_t val, gs_param_handle_t handle){
+ int_to_string_map_struct *map_struct = (int_to_string_map_struct *)handle;
+ if(map_struct->i2s_map.count(val)>0){
+ vstring ret = map_struct->i2s_map[val];
+ result->offset = ret.offset;
+ result->reserved = ret.reserved;
+ result->length = ret.length;
+ }else{
+ result->offset = map_struct->empty_string.offset;
+ result->reserved = map_struct->empty_string.reserved;
+ result->length = map_struct->empty_string.length;
+ }
+
+ return 0;
+}
+
+gs_param_handle_t deregister_handle_for_int_to_string_map_slot_1(gs_param_handle_t handle){
+ int_to_string_map_struct *map_struct = (int_to_string_map_struct *)handle;
+ for(std::map<gs_int64_t, vstring>::iterator i2si = map_struct->i2s_map.begin(); i2si!=map_struct->i2s_map.end(); ++i2si){
+ free((void *)((*i2si).second.offset));
+ }
+ free((void *)(map_struct->empty_string.offset));
+ delete map_struct;
+}
+
Code Review / com / gs-lite.git / blobdiff