X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/efcb7beaff700ddcdca284436a934504be4d0b0b..54702ce88779779500025ff0ce2d66d70cbc9f7a:/src/xbt/dict.c

diff --git a/src/xbt/dict.c b/src/xbt/dict.c
index 2f6101b5ce..227347b76a 100644
--- a/src/xbt/dict.c
+++ b/src/xbt/dict.c
@@ -127,12 +127,25 @@ void xbt_dict_hashsize_set(xbt_dict_t dict, int hashsize) {
 /**
  * Returns the hash code of a string.
  */
-unsigned int xbt_dict_hash(const char *str) {
+static unsigned int xbt_dict_hash_ext(const char *str, int str_len) {
   /* fast implementation of djb2 algorithm */
   unsigned int hash = 5381;
   int c;
   
-  while ((c = *str++)) {
+  while (str_len--) {
+    c = *str++;
+    hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
+  }
+  
+  return hash;
+}
+
+static unsigned int xbt_dict_hash(const char *str) {
+  /* fast implementation of djb2 algorithm */
+  unsigned int hash = 5381;
+  int c;
+  
+  while ( (c = *str++) ) {
     hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
   }
   
@@ -158,7 +171,7 @@ void xbt_dict_set_ext(xbt_dict_t      dict,
 		      void_f_pvoid_t  *free_ctn) {
   xbt_assert(dict);
 
-  unsigned int hash_code = xbt_dict_hash(key) % dict->table_size;
+  unsigned int hash_code = xbt_dict_hash_ext(key,key_len) % dict->table_size;
   xbt_dictelm_t current, previous = NULL;
 
   current = dict->table[hash_code];
@@ -226,7 +239,7 @@ void *xbt_dict_get_ext(xbt_dict_t      dict,
 		       int             key_len) {
   xbt_assert(dict);
 
-  unsigned int hash_code = xbt_dict_hash(key) % dict->table_size;
+  unsigned int hash_code = xbt_dict_hash_ext(key,key_len) % dict->table_size;
   xbt_dictelm_t current;
 
   current = dict->table[hash_code];
@@ -305,7 +318,7 @@ void xbt_dict_remove_ext(xbt_dict_t  dict,
 			 int          key_len) {
   xbt_assert(dict);
 
-  unsigned int hash_code = xbt_dict_hash(key) % dict->table_size;
+  unsigned int hash_code = xbt_dict_hash_ext(key,key_len) % dict->table_size;
   xbt_dictelm_t current, previous = NULL;
 
   current = dict->table[hash_code];
@@ -355,6 +368,10 @@ void xbt_dict_reset(xbt_dict_t dict) {
 
   int i;
   xbt_dictelm_t current, previous = NULL;
+   
+  if (dict->count == 0)
+    return;
+   
   for (i = 0; i < dict->table_size; i++) {
     current = dict->table[i];
     while (current != NULL) {
@@ -384,7 +401,7 @@ int xbt_dict_length(xbt_dict_t dict) {
 void xbt_dict_add_element(xbt_dict_t dict, xbt_dictelm_t element) {
   xbt_assert(dict);
 
-  int hashcode = xbt_dict_hash(element->key) % dict->table_size;
+  int hashcode = xbt_dict_hash_ext(element->key,element->key_len) % dict->table_size;
   element->next = dict->table[hashcode];
   dict->table[hashcode] = element;
 }
@@ -554,8 +571,20 @@ char *data;
 
 
 XBT_TEST_UNIT("basic",test_dict_basic,"Basic usage: change, retrieve, traverse"){
-  xbt_test_add0("Traversal the empty dictionnary");
+  xbt_test_add0("Traversal the null dictionnary");
+  traverse(head);
+
+  xbt_test_add0("Traversal and search the empty dictionnary");
+  head = xbt_dict_new();
   traverse(head);
+  TRY {
+    debuged_remove(head,"12346");
+  } CATCH(e) {
+    if (e.category != not_found_error) 
+      xbt_test_exception(e);
+    xbt_ex_free(e);
+  }
+  xbt_dict_free(&head);
 
   xbt_test_add0("Traverse the full dictionnary");
   fill(&head);
@@ -731,7 +760,7 @@ XBT_TEST_UNIT("crash",test_dict_crash,"Crash test"){
 
   for (i=0;i<10;i++) {
     head=xbt_dict_new();
-    //    if (i%10) printf("."); else printf("%d",i/10); fflush(stdout);
+    /* if (i%10) printf("."); else printf("%d",i/10); fflush(stdout); */
     nb=0;
     for (j=0;j<1000;j++) {
       key=xbt_malloc(SIZEOFKEY);
@@ -754,7 +783,7 @@ XBT_TEST_UNIT("crash",test_dict_crash,"Crash test"){
   head=xbt_dict_new();
   xbt_test_add1("Fill %d elements, with keys being the number of element",NB_ELM);
   for (j=0;j<NB_ELM;j++) {
-    //    if (!(j%1000)) { printf("."); fflush(stdout); }
+    /* if (!(j%1000)) { printf("."); fflush(stdout); } */
 
     key = xbt_malloc(10);
     
@@ -769,7 +798,7 @@ XBT_TEST_UNIT("crash",test_dict_crash,"Crash test"){
   xbt_test_add1("Search my %d elements 20 times",NB_ELM);
   key=xbt_malloc(10);
   for (i=0;i<20;i++) {
-    //    if (i%10) printf("."); else printf("%d",i/10); fflush(stdout);
+    /* if (i%10) printf("."); else printf("%d",i/10); fflush(stdout); */
     for (j=0;j<NB_ELM;j++) {
       
       sprintf(key,"%d",j);
@@ -783,7 +812,7 @@ XBT_TEST_UNIT("crash",test_dict_crash,"Crash test"){
   xbt_test_add1("Remove my %d elements",NB_ELM);
   key=xbt_malloc(10);
   for (j=0;j<NB_ELM;j++) {
-    //if (!(j%10000)) printf("."); fflush(stdout);
+    /* if (!(j%10000)) printf("."); fflush(stdout); */
     
     sprintf(key,"%d",j);
     xbt_dict_remove(head,key);