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Configuration printing functions splitted in two parts.

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Requested by Igor.
This commit is contained in:
Valentin Bartenev
2017-06-23 23:28:37 +03:00
parent 72429410f7
commit 9399a04121
3 changed files with 243 additions and 192 deletions
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4
src/nxt_conf.h
View File

@@ -36,7 +36,9 @@ nxt_conf_json_value_t *nxt_conf_json_parse(nxt_mp_t *mp, u_char *start,
#define nxt_conf_json_str_parse(mp, str) \
nxt_conf_json_parse(mp, (str)->start, (str)->start + (str)->length)
uintptr_t nxt_conf_json_print_value(u_char *p, nxt_conf_json_value_t *value,
size_t nxt_conf_json_value_length(nxt_conf_json_value_t *value,
nxt_conf_json_pretty_t *pretty);
u_char *nxt_conf_json_value_print(u_char *p, nxt_conf_json_value_t *value,
nxt_conf_json_pretty_t *pretty);

426
src/nxt_conf_json.c
View File

@@ -104,16 +104,23 @@ static nxt_int_t nxt_conf_json_copy_value(nxt_mp_t *mp, nxt_conf_json_op_t *op,
static nxt_int_t nxt_conf_json_copy_object(nxt_mp_t *mp, nxt_conf_json_op_t *op,
nxt_conf_json_value_t *dst, nxt_conf_json_value_t *src);
static uintptr_t nxt_conf_json_print_integer(u_char *p,
static size_t nxt_conf_json_integer_length(nxt_conf_json_value_t *value);
static u_char *nxt_conf_json_integer_print(u_char *p,
nxt_conf_json_value_t *value);
static uintptr_t nxt_conf_json_print_string(u_char *p,
static size_t nxt_conf_json_string_length(nxt_conf_json_value_t *value);
static u_char *nxt_conf_json_string_print(u_char *p,
nxt_conf_json_value_t *value);
static uintptr_t nxt_conf_json_print_array(u_char *p,
static size_t nxt_conf_json_array_length(nxt_conf_json_value_t *value,
nxt_conf_json_pretty_t *pretty);
static u_char *nxt_conf_json_array_print(u_char *p,
nxt_conf_json_value_t *value, nxt_conf_json_pretty_t *pretty);
static uintptr_t nxt_conf_json_print_object(u_char *p,
static size_t nxt_conf_json_object_length(nxt_conf_json_value_t *value,
nxt_conf_json_pretty_t *pretty);
static u_char *nxt_conf_json_object_print(u_char *p,
nxt_conf_json_value_t *value, nxt_conf_json_pretty_t *pretty);
static uintptr_t nxt_conf_json_escape(u_char *dst, u_char *src, size_t size);
static size_t nxt_conf_json_escape_length(u_char *p, size_t size);
static u_char *nxt_conf_json_escape(u_char *dst, u_char *src, size_t size);
#define nxt_conf_json_newline(p) \
@@ -132,6 +139,19 @@ nxt_conf_json_indentation(u_char *p, uint32_t level)
}
nxt_inline void
nxt_conf_json_value_get_string(nxt_conf_json_value_t *value, nxt_str_t *str)
{
if (value->type == NXT_CONF_JSON_SHORT_STRING) {
str->length = value->u.str[0];
str->start = &value->u.str[1];
} else {
*str = *value->u.string;
}
}
typedef struct {
u_char *start;
u_char *end;
@@ -801,18 +821,9 @@ static nxt_int_t
nxt_conf_json_object_hash_add(nxt_mp_t *mp, nxt_lvlhsh_t *lvlhsh,
nxt_conf_json_obj_member_t *member)
{
nxt_lvlhsh_query_t lhq;
nxt_conf_json_value_t *name;
nxt_lvlhsh_query_t lhq;
name = &member->name;
if (name->type == NXT_CONF_JSON_SHORT_STRING) {
lhq.key.length = name->u.str[0];
lhq.key.start = &name->u.str[1];
} else {
lhq.key = *name->u.string;
}
nxt_conf_json_value_get_string(&member->name, &lhq.key);
lhq.key_hash = nxt_djb_hash(lhq.key.start, lhq.key.length);
lhq.replace = 0;
@@ -827,18 +838,12 @@ nxt_conf_json_object_hash_add(nxt_mp_t *mp, nxt_lvlhsh_t *lvlhsh,
static nxt_int_t
nxt_conf_json_object_hash_test(nxt_lvlhsh_query_t *lhq, void *data)
{
nxt_str_t str;
nxt_conf_json_value_t *name;
nxt_str_t str;
nxt_conf_json_obj_member_t *member;
name = &((nxt_conf_json_obj_member_t *) data)->name;
member = data;
if (name->type == NXT_CONF_JSON_SHORT_STRING) {
str.length = name->u.str[0];
str.start = &name->u.str[1];
} else {
str = *name->u.string;
}
nxt_conf_json_value_get_string(&member->name, &str);
if (nxt_strstr_eq(&lhq->key, &str)) {
return NXT_OK;
@@ -1149,7 +1154,7 @@ nxt_conf_json_parse_string(nxt_mp_t *mp, nxt_conf_json_value_t *value,
|| utf < 0xdc00
|| utf > 0xdfff))
{
/* invalid surrogate pair */
/* Invalid surrogate pair. */
return NULL;
}
@@ -1312,112 +1317,135 @@ nxt_conf_json_parse_number(nxt_mp_t *mp, nxt_conf_json_value_t *value,
}
uintptr_t
nxt_conf_json_print_value(u_char *p, nxt_conf_json_value_t *value,
size_t
nxt_conf_json_value_length(nxt_conf_json_value_t *value,
nxt_conf_json_pretty_t *pretty)
{
switch (value->type) {
case NXT_CONF_JSON_NULL:
if (p == NULL) {
return sizeof("null") - 1;
}
return (uintptr_t) nxt_cpymem(p, "null", 4);
return sizeof("null") - 1;
case NXT_CONF_JSON_BOOLEAN:
if (p == NULL) {
return value->u.boolean ? sizeof("true") - 1 : sizeof("false") - 1;
}
if (value->u.boolean) {
return (uintptr_t) nxt_cpymem(p, "true", 4);
}
return (uintptr_t) nxt_cpymem(p, "false", 5);
return value->u.boolean ? sizeof("true") - 1 : sizeof("false") - 1;
case NXT_CONF_JSON_INTEGER:
return nxt_conf_json_print_integer(p, value);
return nxt_conf_json_integer_length(value);
case NXT_CONF_JSON_NUMBER:
/* TODO */
return (p == NULL) ? 0 : (uintptr_t) p;
return 0;
case NXT_CONF_JSON_SHORT_STRING:
case NXT_CONF_JSON_STRING:
return nxt_conf_json_print_string(p, value);
return nxt_conf_json_string_length(value);
case NXT_CONF_JSON_ARRAY:
return nxt_conf_json_print_array(p, value, pretty);
return nxt_conf_json_array_length(value, pretty);
case NXT_CONF_JSON_OBJECT:
return nxt_conf_json_print_object(p, value, pretty);
return nxt_conf_json_object_length(value, pretty);
}
nxt_unreachable();
return (p == NULL) ? 0 : (uintptr_t) p;
return 0;
}
static uintptr_t
nxt_conf_json_print_integer(u_char *p, nxt_conf_json_value_t *value)
u_char *
nxt_conf_json_value_print(u_char *p, nxt_conf_json_value_t *value,
nxt_conf_json_pretty_t *pretty)
{
switch (value->type) {
case NXT_CONF_JSON_NULL:
return nxt_cpymem(p, "null", 4);
case NXT_CONF_JSON_BOOLEAN:
return value->u.boolean ? nxt_cpymem(p, "true", 4)
: nxt_cpymem(p, "false", 5);
case NXT_CONF_JSON_INTEGER:
return nxt_conf_json_integer_print(p, value);
case NXT_CONF_JSON_NUMBER:
/* TODO */
return p;
case NXT_CONF_JSON_SHORT_STRING:
case NXT_CONF_JSON_STRING:
return nxt_conf_json_string_print(p, value);
case NXT_CONF_JSON_ARRAY:
return nxt_conf_json_array_print(p, value, pretty);
case NXT_CONF_JSON_OBJECT:
return nxt_conf_json_object_print(p, value, pretty);
}
nxt_unreachable();
return p;
}
static size_t
nxt_conf_json_integer_length(nxt_conf_json_value_t *value)
{
int64_t num;
num = value->u.integer;
num = llabs(value->u.integer);
if (p == NULL) {
num = llabs(num);
if (num <= 9999) {
return sizeof("-9999") - 1;
}
if (num <= 99999999999) {
return sizeof("-99999999999") - 1;
}
return NXT_INT64_T_LEN;
if (num <= 9999) {
return sizeof("-9999") - 1;
}
return (uintptr_t) nxt_sprintf(p, p + NXT_INT64_T_LEN, "%L", num);
if (num <= 99999999999) {
return sizeof("-99999999999") - 1;
}
return NXT_INT64_T_LEN;
}
static uintptr_t
nxt_conf_json_print_string(u_char *p, nxt_conf_json_value_t *value)
static u_char *
nxt_conf_json_integer_print(u_char *p, nxt_conf_json_value_t *value)
{
size_t len;
u_char *s;
if (value->type == NXT_CONF_JSON_SHORT_STRING) {
len = value->u.str[0];
s = &value->u.str[1];
} else {
len = value->u.string->length;
s = value->u.string->start;
}
if (p == NULL) {
return 2 + len + nxt_conf_json_escape(NULL, s, len);
}
*p++ = '"';
p = (u_char *) nxt_conf_json_escape(p, s, len);
*p++ = '"';
return (uintptr_t) p;
return nxt_sprintf(p, p + NXT_INT64_T_LEN, "%L", value->u.integer);
}
static uintptr_t
nxt_conf_json_print_array(u_char *p, nxt_conf_json_value_t *value,
static size_t
nxt_conf_json_string_length(nxt_conf_json_value_t *value)
{
nxt_str_t str;
nxt_conf_json_value_get_string(value, &str);
return 2 + nxt_conf_json_escape_length(str.start, str.length);
}
static u_char *
nxt_conf_json_string_print(u_char *p, nxt_conf_json_value_t *value)
{
nxt_str_t str;
nxt_conf_json_value_get_string(value, &str);
*p++ = '"';
p = nxt_conf_json_escape(p, str.start, str.length);
*p++ = '"';
return p;
}
static size_t
nxt_conf_json_array_length(nxt_conf_json_value_t *value,
nxt_conf_json_pretty_t *pretty)
{
size_t len;
@@ -1426,38 +1454,47 @@ nxt_conf_json_print_array(u_char *p, nxt_conf_json_value_t *value,
array = value->u.array;
if (p == NULL) {
/* [] */
len = 2;
/* [] */
len = 2;
if (pretty != NULL) {
pretty->level++;
}
value = array->elements;
for (n = 0; n < array->count; n++) {
len += nxt_conf_json_print_value(NULL, &value[n], pretty);
if (pretty != NULL) {
/* indentation and new line */
len += pretty->level + 2;
}
}
if (pretty != NULL) {
pretty->level--;
if (n != 0) {
/* indentation and new line */
len += pretty->level + 2;
}
}
/* reserve space for "n" commas */
return len + n;
if (pretty != NULL) {
pretty->level++;
}
value = array->elements;
for (n = 0; n < array->count; n++) {
len += nxt_conf_json_value_length(&value[n], pretty);
if (pretty != NULL) {
/* Indentation and new line. */
len += pretty->level + 2;
}
}
if (pretty != NULL) {
pretty->level--;
if (n != 0) {
/* Indentation and new line. */
len += pretty->level + 2;
}
}
/* Reserve space for "n" commas. */
return len + n;
}
static u_char *
nxt_conf_json_array_print(u_char *p, nxt_conf_json_value_t *value,
nxt_conf_json_pretty_t *pretty)
{
nxt_uint_t n;
nxt_conf_json_array_t *array;
array = value->u.array;
*p++ = '[';
if (array->count != 0) {
@@ -1470,7 +1507,7 @@ nxt_conf_json_print_array(u_char *p, nxt_conf_json_value_t *value,
p = nxt_conf_json_indentation(p, pretty->level);
}
p = (u_char *) nxt_conf_json_print_value(p, &value[0], pretty);
p = nxt_conf_json_value_print(p, &value[0], pretty);
for (n = 1; n < array->count; n++) {
*p++ = ',';
@@ -1482,7 +1519,7 @@ nxt_conf_json_print_array(u_char *p, nxt_conf_json_value_t *value,
pretty->more_space = 0;
}
p = (u_char *) nxt_conf_json_print_value(p, &value[n], pretty);
p = nxt_conf_json_value_print(p, &value[n], pretty);
}
if (pretty != NULL) {
@@ -1497,12 +1534,12 @@ nxt_conf_json_print_array(u_char *p, nxt_conf_json_value_t *value,
*p++ = ']';
return (uintptr_t) p;
return p;
}
static uintptr_t
nxt_conf_json_print_object(u_char *p, nxt_conf_json_value_t *value,
static size_t
nxt_conf_json_object_length(nxt_conf_json_value_t *value,
nxt_conf_json_pretty_t *pretty)
{
size_t len;
@@ -1512,40 +1549,49 @@ nxt_conf_json_print_object(u_char *p, nxt_conf_json_value_t *value,
object = value->u.object;
if (p == NULL) {
/* {} */
len = 2;
/* {} */
len = 2;
if (pretty != NULL) {
pretty->level++;
}
member = object->members;
for (n = 0; n < object->count; n++) {
len += nxt_conf_json_print_string(NULL, &member[n].name) + 1
+ nxt_conf_json_print_value(NULL, &member[n].value, pretty)
+ 1;
if (pretty != NULL) {
/*
* indentation, space after ":", new line, and possible
* additional empty line between non-empty objects
*/
len += pretty->level + 1 + 2 + 2;
}
}
if (pretty != NULL) {
pretty->level--;
/* indentation and new line */
len += pretty->level + 2;
}
return len;
if (pretty != NULL) {
pretty->level++;
}
member = object->members;
for (n = 0; n < object->count; n++) {
len += nxt_conf_json_string_length(&member[n].name) + 1
+ nxt_conf_json_value_length(&member[n].value, pretty) + 1;
if (pretty != NULL) {
/*
* Indentation, space after ":", new line, and possible
* additional empty line between non-empty objects.
*/
len += pretty->level + 1 + 2 + 2;
}
}
if (pretty != NULL) {
pretty->level--;
/* Indentation and new line. */
len += pretty->level + 2;
}
return len;
}
static u_char *
nxt_conf_json_object_print(u_char *p, nxt_conf_json_value_t *value,
nxt_conf_json_pretty_t *pretty)
{
nxt_uint_t n;
nxt_conf_json_object_t *object;
nxt_conf_json_obj_member_t *member;
object = value->u.object;
*p++ = '{';
if (object->count != 0) {
@@ -1564,7 +1610,7 @@ nxt_conf_json_print_object(u_char *p, nxt_conf_json_value_t *value,
p = nxt_conf_json_indentation(p, pretty->level);
}
p = (u_char *) nxt_conf_json_print_string(p, &member[n].name);
p = nxt_conf_json_string_print(p, &member[n].name);
*p++ = ':';
@@ -1572,8 +1618,7 @@ nxt_conf_json_print_object(u_char *p, nxt_conf_json_value_t *value,
*p++ = ' ';
}
p = (u_char *) nxt_conf_json_print_value(p, &member[n].value,
pretty);
p = nxt_conf_json_value_print(p, &member[n].value, pretty);
n++;
@@ -1605,47 +1650,52 @@ nxt_conf_json_print_object(u_char *p, nxt_conf_json_value_t *value,
*p++ = '}';
return (uintptr_t) p;
return p;
}
static uintptr_t
nxt_conf_json_escape(u_char *dst, u_char *src, size_t size)
static size_t
nxt_conf_json_escape_length(u_char *p, size_t size)
{
u_char ch;
size_t len;
if (dst == NULL) {
len = 0;
len = size;
while (size) {
ch = *src++;
while (size) {
ch = *p++;
if (ch == '\\' || ch == '"') {
if (ch == '\\' || ch == '"') {
len++;
} else if (ch <= 0x1f) {
switch (ch) {
case '\n':
case '\r':
case '\t':
case '\b':
case '\f':
len++;
break;
} else if (ch <= 0x1f) {
switch (ch) {
case '\n':
case '\r':
case '\t':
case '\b':
case '\f':
len++;
break;
default:
len += sizeof("\\u001F") - 2;
}
default:
len += sizeof("\\u001F") - 2;
}
size--;
}
return len;
size--;
}
return len;
}
static u_char *
nxt_conf_json_escape(u_char *dst, u_char *src, size_t size)
{
u_char ch;
while (size) {
ch = *src++;
@@ -1694,5 +1744,5 @@ nxt_conf_json_escape(u_char *dst, u_char *src, size_t size)
size--;
}
return (uintptr_t) dst;
return dst;
}

5
src/nxt_controller.c
View File

@@ -786,7 +786,7 @@ nxt_controller_response_body(nxt_controller_response_t *resp, nxt_mp_t *pool)
nxt_memzero(&pretty, sizeof(nxt_conf_json_pretty_t));
size = nxt_conf_json_print_value(NULL, value, &pretty) + 2;
size = nxt_conf_json_value_length(value, &pretty) + 2;
b = nxt_buf_mem_alloc(pool, size, 0);
if (nxt_slow_path(b == NULL)) {
@@ -795,8 +795,7 @@ nxt_controller_response_body(nxt_controller_response_t *resp, nxt_mp_t *pool)
nxt_memzero(&pretty, sizeof(nxt_conf_json_pretty_t));
b->mem.free = (u_char *) nxt_conf_json_print_value(b->mem.free, value,
&pretty);
b->mem.free = nxt_conf_json_value_print(b->mem.free, value, &pretty);
*b->mem.free++ = '\r';
*b->mem.free++ = '\n';