experiments/clixon
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replace chunk code

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This commit is contained in:
Olof hagsand 2017-04-03 15:53:57 +02:00
parent 25d535703e
commit 09cbea65c7
6 changed files with 56 additions and 39 deletions
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48
lib/src/clixon_string.c
View file

@ -69,6 +69,7 @@
* @retval NULL Error
* @see clicon_strsplit Operates on full string delimiters rather than
* individual character delimiters.
* @see clicon_strsep Use malloc instead of chunk
*/
char **
clicon_sepsplit (char *string,
@ -111,8 +112,6 @@ clicon_sepsplit (char *string,
* the full delimiter string. The matched delimiters are not part of the
* resulting vector.
*
* See also clicon_sepsplit() which is similar
*
* The vector returned is one single memory chunk that must be unchunked
* by the caller
*
@ -124,6 +123,7 @@ clicon_sepsplit (char *string,
* @retval NULL Error
* @see clicon_sepsplit Operates on individual character delimiters rather
* than full string delimiter.
* @see clicon_strsep Use malloc instead of chunk
*/
char **
clicon_strsplit (char *string,
@ -165,6 +165,50 @@ clicon_strsplit (char *string,
return vec;
}
/*! Split string into a vector based on character delimiters. Using malloc
*
* The given string is split into a vector where the delimiter can be
* any of the characters in the specified delimiter string.
*
* The vector returned is one single memory block that must be freed
* by the caller
*
* @param[in] string String to be split
* @param[in] delim String of delimiter characters
* @param[out] nvec Number of entries in returned vector
* @retval vec Vector of strings. Free after use
* @retval NULL Error *
*/
char **
clicon_strsep(char *string,
char *delim,
int *nvec0)
{
char **vec = NULL;
char *ptr;
char *p;
int nvec = 1;
int i;
for (i=0; i<strlen(string); i++)
if (index(delim, string[i]))
nvec++;
/* alloc vector and append copy of string */
if ((vec = (char**)malloc(nvec* sizeof(char*) + strlen(string)+1)) == NULL){
clicon_err(OE_YANG, errno, "malloc");
goto err;
}
ptr = (char*)vec + nvec* sizeof(char*); /* this is where ptr starts */
strncpy(ptr, string, strlen(string)+1);
i = 0;
while ((p = strsep(&ptr, delim)) != NULL)
vec[i++] = p;
*nvec0 = nvec;
err:
return vec;
}
/*! Concatenate elements of a string array into a string.
* An optional delimiter string can be specified which will be inserted betwen
* each element.

35
lib/src/clixon_yang.c
View file

@ -1676,37 +1676,6 @@ yang_xpath_vec(yang_node *yn,
return yret;
}
/* Alternative to clicon_strsplit using malloc. Note delim can only be one char
* Free return value after use
*/
static char **
clicon_strsplit_malloc(char *string,
char *delim,
int *nvec0)
{
char **vec = NULL;
char *ptr;
char *p;
int nvec = 1;
int i;
for (i=0; i<strlen(string); i++)
if (string[i]==*delim)
nvec++;
/* alloc vector and append copy of string */
if ((vec = (char**)malloc(nvec* sizeof(char*) + strlen(string)+1)) == NULL){
clicon_err(OE_YANG, errno, "malloc");
goto err;
}
ptr = (char*)vec + nvec* sizeof(char*); /* this is where ptr starts */
strncpy(ptr, string, strlen(string)+1);
i = 0;
while ((p = strsep(&ptr, delim)) != NULL)
vec[i++] = p;
*nvec0 = nvec;
err:
return vec;
}
/*! Given an absolute xpath (eg /a/b/c) find matching yang specification
* @param[in] yn Yang node
@ -1725,7 +1694,7 @@ yang_xpath_abs(yang_node *yn,
char *id;
char *prefix = NULL;
if ((vec = clicon_strsplit_malloc(xpath, "/", &nvec)) == NULL){
if ((vec = clicon_strsep(xpath, "/", &nvec)) == NULL){
clicon_err(OE_YANG, errno, "%s: strsplit", __FUNCTION__);
return NULL;
}
@ -1807,7 +1776,7 @@ yang_xpath(yang_node *yn,
/* check absolute path */
if (xpath[0] == '/')
return yang_xpath_abs(yn, xpath);
if ((vec = clicon_strsplit_malloc(xpath, "/", &nvec)) == NULL)
if ((vec = clicon_strsep(xpath, "/", &nvec)) == NULL)
goto err;
ys = yang_xpath_vec((yang_node*)yn, vec, nvec);
err: