maxscale_getline moved to config.c

As a general purpose function should be somewhere else, but we
need to sort out what should be where first.
This commit is contained in:
Johan Wikman 2015-10-30 09:38:40 +02:00
parent 5507624326
commit 1f22e2854b
3 changed files with 60 additions and 59 deletions

View File

@ -97,6 +97,7 @@ static int handle_feedback_item(const char *, const char *);
static void global_defaults();
static void feedback_defaults();
static void check_config_objects(CONFIG_CONTEXT *context);
static int maxscale_getline(char** dest, int* size, FILE* file);
int config_truth_value(char *str);
bool isInternalService(char *router);
int config_get_ifaddr(unsigned char *output);
@ -2716,3 +2717,62 @@ bool config_has_duplicate_sections(const char* config)
free(buffer);
return rval;
}
/**
* Read from a FILE pointer until a newline character or the end of the file is found.
* The provided buffer will be reallocated if it is too small to store the whole
* line. The size after the reallocation will be stored in @c size. The read line
* will be stored in @c dest and it will always be null terminated. The newline
* character will not be copied into the buffer.
* @param dest Pointer to a buffer of at least @c size bytes
* @param size Size of the buffer
* @param file A valid file stream
* @return When a complete line was successfully read the function returns 1. If
* the end of the file was reached before any characters were read the return value
* will be 0. If the provided buffer could not be reallocated to store the complete
* line the original size will be retained, everything read up to this point
* will be stored in it as a null terminated string and -1 will be returned.
*/
int maxscale_getline(char** dest, int* size, FILE* file)
{
char* destptr = *dest;
int offset = 0;
if (feof(file))
{
return 0;
}
while (true)
{
if (*size <= offset)
{
char* tmp = (char*) realloc(destptr, *size * 2);
if (tmp)
{
destptr = tmp;
*size *= 2;
}
else
{
skygw_log_write(LE, "Error: Failed to reallocate memory from %d"
" bytes to %d bytes when reading from file.",
*size, *size * 2);
destptr[offset - 1] = '\0';
*dest = destptr;
return -1;
}
}
if ((destptr[offset] = fgetc(file)) == '\n' || feof(file))
{
destptr[offset] = '\0';
break;
}
offset++;
}
*dest = destptr;
return 1;
}

View File

@ -2266,61 +2266,3 @@ int simple_str_hash(char* key)
return hash;
}
/**
* Read from a FILE pointer until a newline character or the end of the file is found.
* The provided buffer will be reallocated if it is too small to store the whole
* line. The size after the reallocation will be stored in @c size. The read line
* will be stored in @c dest and it will always be null terminated. The newline
* character will not be copied into the buffer.
* @param dest Pointer to a buffer of at least @c size bytes
* @param size Size of the buffer
* @param file A valid file stream
* @return When a complete line was successfully read the function returns 1. If
* the end of the file was reached before any characters were read the return value
* will be 0. If the provided buffer could not be reallocated to store the complete
* line the original size will be retained, everything read up to this point
* will be stored in it as a null terminated string and -1 will be returned.
*/
int maxscale_getline(char** dest, int* size, FILE* file)
{
char* destptr = *dest;
int offset = 0;
if (feof(file))
{
return 0;
}
while (true)
{
if (*size <= offset)
{
char* tmp = (char*) realloc(destptr, *size * 2);
if (tmp)
{
destptr = tmp;
*size *= 2;
}
else
{
skygw_log_write(LE, "Error: Failed to reallocate memory from %d"
" bytes to %d bytes when reading from file.",
*size, *size * 2);
destptr[offset - 1] = '\0';
*dest = destptr;
return -1;
}
}
if ((destptr[offset] = fgetc(file)) == '\n' || feof(file))
{
destptr[offset] = '\0';
break;
}
offset++;
}
*dest = destptr;
return 1;
}

View File

@ -281,7 +281,6 @@ char* replace_quoted(const char* str);
bool is_valid_posix_path(char* path);
bool strip_escape_chars(char*);
int simple_str_hash(char* key);
int maxscale_getline(char** dest, int* size, FILE* file);
EXTERN_C_BLOCK_END