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Revert to last working version of libretro-db

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This commit is contained in:
twinaphex 2015-09-17 06:12:57 +02:00
parent d65cc5fd2f
commit b32b17f4ae
11 changed files with 807 additions and 888 deletions
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382
libretro-db/libretrodb.c
View File

@ -22,52 +22,46 @@
struct node_iter_ctx
{
libretrodb_t *db;
libretrodb_index_t *idx;
libretrodb_t *db;
libretrodb_index_t *idx;
};
static struct rmsgpack_dom_value sentinal;
static INLINE off_t flseek(FILE *fp, int offset, int whence)
static int libretrodb_read_metadata(int fd, libretrodb_metadata_t *md)
{
if (fseek(fp, offset, whence) != 0)
return (off_t)-1;
return (off_t)ftell(fp);
return rmsgpack_dom_read_into(fd, "count", &md->count, NULL);
}
static int libretrodb_read_metadata(FILE *fp, libretrodb_metadata_t *md)
static int libretrodb_write_metadata(int fd, libretrodb_metadata_t *md)
{
return rmsgpack_dom_read_into(fp, "count", &md->count, NULL);
}
static int libretrodb_write_metadata(FILE *fp, libretrodb_metadata_t *md)
{
rmsgpack_write_map_header(fp, 1);
rmsgpack_write_string(fp, "count", strlen("count"));
return rmsgpack_write_uint(fp, md->count);
rmsgpack_write_map_header(fd, 1);
rmsgpack_write_string(fd, "count", strlen("count"));
return rmsgpack_write_uint(fd, md->count);
}
static int validate_document(const struct rmsgpack_dom_value * doc)
{
unsigned i;
struct rmsgpack_dom_value key, value;
struct rmsgpack_dom_value key;
struct rmsgpack_dom_value value;
int rv = 0;
if (doc->type != RDT_MAP)
return -EINVAL;
for (i = 0; i < doc->val.map.len; i++)
for (i = 0; i < doc->map.len; i++)
{
key = doc->val.map.items[i].key;
value = doc->val.map.items[i].value;
key = doc->map.items[i].key;
value = doc->map.items[i].value;
if (key.type != RDT_STRING)
return -EINVAL;
if (key.val.string.len <= 0)
if (key.string.len <= 0)
return -EINVAL;
if (key.val.string.buff[0] == '$')
if (key.string.buff[0] == '$')
return -EINVAL;
if (value.type != RDT_MAP)
@ -80,95 +74,91 @@ static int validate_document(const struct rmsgpack_dom_value * doc)
return rv;
}
int libretrodb_create(FILE *fp, libretrodb_value_provider value_provider,
void * ctx)
int libretrodb_create(int fd, libretrodb_value_provider value_provider,
void * ctx)
{
int rv;
off_t root;
libretrodb_metadata_t md;
struct rmsgpack_dom_value item;
uint64_t item_count = 0;
libretrodb_header_t header = {{0}};
uint64_t item_count = 0;
struct rmsgpack_dom_value item = {};
libretrodb_header_t header = {};
memcpy(header.magic_number, MAGIC_NUMBER, sizeof(MAGIC_NUMBER)-1);
root = flseek(fp, 0, SEEK_CUR);
root = lseek(fd, 0, SEEK_CUR);
/* We write the header in the end because we need to know the size of
* the db first */
flseek(fp, sizeof(libretrodb_header_t), SEEK_CUR);
lseek(fd, sizeof(libretrodb_header_t), SEEK_CUR);
while ((rv = value_provider(ctx, &item)) == 0)
{
if ((rv = validate_document(&item)) < 0)
goto error;
goto clean;
if ((rv = rmsgpack_dom_write(fp, &item)) < 0)
goto error;
if ((rv = rmsgpack_dom_write(fd, &item)) < 0)
goto clean;
item_count++;
}
if (rv < 0)
goto error;
goto clean;
if ((rv = rmsgpack_dom_write(fp, &sentinal)) < 0)
goto error;
if ((rv = rmsgpack_dom_write(fd, &sentinal)) < 0)
goto clean;
header.metadata_offset = httobe64(flseek(fp, 0, SEEK_CUR));
header.metadata_offset = httobe64(lseek(fd, 0, SEEK_CUR));
md.count = item_count;
libretrodb_write_metadata(fp, &md);
flseek(fp, root, SEEK_SET);
fwrite(&header, 1, sizeof(header), fp);
error:
libretrodb_write_metadata(fd, &md);
lseek(fd, root, SEEK_SET);
write(fd, &header, sizeof(header));
clean:
rmsgpack_dom_value_free(&item);
return rv;
}
static int libretrodb_read_index_header(FILE *fp, libretrodb_index_t *idx)
static int libretrodb_read_index_header(int fd, libretrodb_index_t *idx)
{
uint64_t name_len = 50;
return rmsgpack_dom_read_into(fp,
return rmsgpack_dom_read_into(fd,
"name", idx->name, &name_len,
"key_size", &idx->key_size,
"next", &idx->next, NULL);
}
static void libretrodb_write_index_header(FILE *fp, libretrodb_index_t * idx)
static void libretrodb_write_index_header(int fd, libretrodb_index_t * idx)
{
rmsgpack_write_map_header(fp, 3);
rmsgpack_write_string(fp, "name", strlen("name"));
rmsgpack_write_string(fp, idx->name, strlen(idx->name));
rmsgpack_write_string(fp, "key_size", strlen("key_size"));
rmsgpack_write_uint(fp, idx->key_size);
rmsgpack_write_string(fp, "next", strlen("next"));
rmsgpack_write_uint(fp, idx->next);
rmsgpack_write_map_header(fd, 3);
rmsgpack_write_string(fd, "name", strlen("name"));
rmsgpack_write_string(fd, idx->name, strlen(idx->name));
rmsgpack_write_string(fd, "key_size", strlen("key_size"));
rmsgpack_write_uint(fd, idx->key_size);
rmsgpack_write_string(fd, "next", strlen("next"));
rmsgpack_write_uint(fd, idx->next);
}
void libretrodb_close(libretrodb_t *db)
{
if (!db)
return;
fclose(db->fp);
db->fp = NULL;
close(db->fd);
db->fd = -1;
}
int libretrodb_open(const char *path, libretrodb_t *db)
{
int rv;
libretrodb_header_t header;
libretrodb_metadata_t md;
FILE *fp = fopen(path, "rb");
int rv;
int fd = open(path, O_RDWR);
if (fp == NULL)
if (fd == -1)
return -errno;
strcpy(db->path, path);
db->root = flseek(fp, 0, SEEK_CUR);
db->root = lseek(fd, 0, SEEK_CUR);
if ((rv = fread(&header, 1, sizeof(header), fp)) != sizeof(header))
if ((rv = read(fd, &header, sizeof(header))) == -1)
{
rv = -errno;
goto error;
@ -181,37 +171,37 @@ int libretrodb_open(const char *path, libretrodb_t *db)
}
header.metadata_offset = betoht64(header.metadata_offset);
flseek(fp, (int)header.metadata_offset, SEEK_SET);
lseek(fd, header.metadata_offset, SEEK_SET);
if (libretrodb_read_metadata(fp, &md) < 0)
if (libretrodb_read_metadata(fd, &md) < 0)
{
rv = -EINVAL;
goto error;
}
db->count = md.count;
db->first_index_offset = flseek(fp, 0, SEEK_CUR);
db->fp = fp;
db->count = md.count;
db->first_index_offset = lseek(fd, 0, SEEK_CUR);
db->fd = fd;
return 0;
error:
fclose(fp);
close(fd);
return rv;
}
static int libretrodb_find_index(libretrodb_t *db, const char *index_name,
libretrodb_index_t *idx)
{
off_t eof = flseek(db->fp, 0, SEEK_END);
off_t offset = flseek(db->fp, (int)db->first_index_offset, SEEK_SET);
off_t eof = lseek(db->fd, 0, SEEK_END);
off_t offset = lseek(db->fd, db->first_index_offset, SEEK_SET);
while (offset < eof)
{
libretrodb_read_index_header(db->fp, idx);
libretrodb_read_index_header(db->fd, idx);
if (strncmp(index_name, idx->name, strlen(idx->name)) == 0)
return 0;
offset = flseek(db->fp, (int)idx->next, SEEK_CUR);
offset = lseek(db->fd, idx->next, SEEK_CUR);
}
return -1;
@ -247,27 +237,27 @@ static int binsearch(const void * buff, const void * item,
}
int libretrodb_find_entry(libretrodb_t *db, const char *index_name,
const void *key, struct rmsgpack_dom_value *out)
const void *key, struct rmsgpack_dom_value *out)
{
libretrodb_index_t idx;
int rv;
void * buff;
uint64_t offset;
void *buff = NULL;
ssize_t bufflen, nread = 0;
if (libretrodb_find_index(db, index_name, &idx) < 0)
return -1;
bufflen = idx.next;
buff = malloc(bufflen);
buff = malloc(bufflen);
if (!buff)
return -ENOMEM;
while (nread < bufflen)
{
void *buff_ = (uint64_t *)buff + nread;
rv = fread(buff_, 1, bufflen - nread, db->fp);
void * buff_ = (uint64_t *)buff + nread;
rv = read(db->fd, buff_, bufflen - nread);
if (rv <= 0)
{
@ -277,13 +267,18 @@ int libretrodb_find_entry(libretrodb_t *db, const char *index_name,
nread += rv;
}
rv = binsearch(buff, key, db->count, (uint8_t)idx.key_size, &offset);
rv = binsearch(buff, key, db->count, idx.key_size, &offset);
free(buff);
if (rv == 0)
flseek(db->fp, (int)offset, SEEK_SET);
lseek(db->fd, offset, SEEK_SET);
return rmsgpack_dom_read(db->fp, out);
rv = rmsgpack_dom_read(db->fd, out);
if (rv < 0)
return rv;
return rv;
}
/**
@ -296,9 +291,9 @@ int libretrodb_find_entry(libretrodb_t *db, const char *index_name,
**/
int libretrodb_cursor_reset(libretrodb_cursor_t *cursor)
{
cursor->eof = 0;
return flseek(cursor->fp,
(int)cursor->db->root + sizeof(libretrodb_header_t),
cursor->eof = 0;
return lseek(cursor->fd,
cursor->db->root + sizeof(libretrodb_header_t),
SEEK_SET);
}
@ -311,7 +306,7 @@ int libretrodb_cursor_read_item(libretrodb_cursor_t *cursor,
return EOF;
retry:
rv = rmsgpack_dom_read(cursor->fp, out);
rv = rmsgpack_dom_read(cursor->fd, out);
if (rv < 0)
return rv;
@ -324,10 +319,7 @@ retry:
if (cursor->query)
{
if (!libretrodb_query_filter(cursor->query, out))
{
rmsgpack_dom_value_free(out);
goto retry;
}
}
return 0;
@ -344,16 +336,16 @@ void libretrodb_cursor_close(libretrodb_cursor_t *cursor)
if (!cursor)
return;
fclose(cursor->fp);
close(cursor->fd);
cursor->is_valid = 0;
cursor->fd = -1;
cursor->eof = 1;
cursor->db = NULL;
if (cursor->query)
libretrodb_query_free(cursor->query);
if (cursor->query)
libretrodb_query_free(cursor->query);
cursor->is_valid = 0;
cursor->fp = NULL;
cursor->eof = 1;
cursor->db = NULL;
cursor->query = NULL;
cursor->query = NULL;
}
/**
@ -369,17 +361,15 @@ void libretrodb_cursor_close(libretrodb_cursor_t *cursor)
int libretrodb_cursor_open(libretrodb_t *db, libretrodb_cursor_t *cursor,
libretrodb_query_t *q)
{
cursor->fp = fopen(db->path, "rb");
cursor->fd = dup(db->fd);
if (cursor->fp == NULL)
if (cursor->fd == -1)
return -errno;
cursor->db = db;
cursor->db = db;
cursor->is_valid = 1;
libretrodb_cursor_reset(cursor);
cursor->query = q;
cursor->query = q;
if (q)
libretrodb_query_inc_ref(q);
@ -389,124 +379,138 @@ int libretrodb_cursor_open(libretrodb_t *db, libretrodb_cursor_t *cursor,
static int node_iter(void * value, void * ctx)
{
struct node_iter_ctx *nictx = (struct node_iter_ctx*)ctx;
size_t size = nictx->idx->key_size + sizeof(uint64_t);
struct node_iter_ctx *nictx = (struct node_iter_ctx*)ctx;
if (fwrite(value, 1, size, nictx->db->fp) == size)
return 0;
if (write(nictx->db->fd, value,
nictx->idx->key_size + sizeof(uint64_t)) > 0)
return 0;
return -1;
return -1;
}
static uint64_t libretrodb_tell(libretrodb_t *db)
{
return (uint64_t)ftell(db->fp);
return lseek(db->fd, 0, SEEK_CUR);
}
int libretrodb_create_index(libretrodb_t *db,
const char *name, const char *field_name)
{
struct node_iter_ctx nictx;
struct rmsgpack_dom_value key;
libretrodb_index_t idx;
struct rmsgpack_dom_value item;
struct rmsgpack_dom_value *field;
struct bintree tree;
libretrodb_cursor_t cur = {0};
void *buff = NULL;
uint64_t *buff_u64 = NULL;
uint64_t idx_header_offset = 0;
uint8_t field_size = 0;
uint64_t item_loc = libretrodb_tell(db);
int rv;
struct node_iter_ctx nictx;
struct rmsgpack_dom_value key;
libretrodb_index_t idx;
struct rmsgpack_dom_value item;
struct rmsgpack_dom_value * field;
struct bintree tree;
libretrodb_cursor_t cur;
uint64_t idx_header_offset;
void * buff = NULL;
uint64_t * buff_u64 = NULL;
uint8_t field_size = 0;
uint64_t item_loc = libretrodb_tell(db);
bintree_new(&tree, node_compare, &field_size);
bintree_new(&tree, node_compare, &field_size);
if (libretrodb_cursor_open(db, &cur, NULL) != 0)
goto error;
key.type = RDT_STRING;
key.val.string.len = strlen(field_name);
/* We know we aren't going to change it */
key.val.string.buff = (char*)field_name;
while (libretrodb_cursor_read_item(&cur, &item) == 0)
if (libretrodb_cursor_open(db, &cur, NULL) != 0)
{
if (item.type != RDT_MAP)
rv = -1;
goto clean;
}
key.type = RDT_STRING;
key.string.len = strlen(field_name);
/* We know we aren't going to change it */
key.string.buff = (char *) field_name;
while (libretrodb_cursor_read_item(&cur, &item) == 0)
{
if (item.type != RDT_MAP)
{
printf("Only map keys are supported\n");
goto error;
}
rv = -EINVAL;
printf("Only map keys are supported\n");
goto clean;
}
field = rmsgpack_dom_value_map_value(&item, &key);
field = rmsgpack_dom_value_map_value(&item, &key);
if (!field)
if (!field)
{
printf("field not found in item\n");
goto error;
}
rv = -EINVAL;
printf("field not found in item\n");
goto clean;
}
if (field->type != RDT_BINARY)
if (field->type != RDT_BINARY)
{
printf("field is not binary\n");
goto error;
}
rv = -EINVAL;
printf("field is not binary\n");
goto clean;
}
if (field->val.binary.len == 0)
if (field->binary.len == 0)
{
printf("field is empty\n");
goto error;
}
rv = -EINVAL;
printf("field is empty\n");
goto clean;
}
if (field_size == 0)
field_size = field->val.binary.len;
else if (field->val.binary.len != field_size)
if (field_size == 0)
field_size = field->binary.len;
else if (field->binary.len != field_size)
{
printf("field is not of correct size\n");
goto error;
}
rv = -EINVAL;
printf("field is not of correct size\n");
goto clean;
}
buff = malloc(field_size + sizeof(uint64_t));
if (!buff)
goto error;
memcpy(buff, field->val.binary.buff, field_size);
buff_u64 = (uint64_t *)buff + field_size;
memcpy(buff_u64, &item_loc, sizeof(uint64_t));
if (bintree_insert(&tree, buff) != 0)
buff = malloc(field_size + sizeof(uint64_t));
if (!buff)
{
printf("Value is not unique: ");
rmsgpack_dom_value_print(field);
printf("\n");
goto error;
}
buff = NULL;
rmsgpack_dom_value_free(&item);
item_loc = libretrodb_tell(db);
}
rv = -ENOMEM;
goto clean;
}
idx_header_offset = flseek(db->fp, 0, SEEK_END);
(void)idx_header_offset;
strncpy(idx.name, name, 50);
memcpy(buff, field->binary.buff, field_size);
idx.name[49] = '\0';
idx.key_size = field_size;
idx.next = db->count * (field_size + sizeof(uint64_t));
libretrodb_write_index_header(db->fp, &idx);
buff_u64 = (uint64_t *)buff + field_size;
nictx.db = db;
nictx.idx = &idx;
bintree_iterate(&tree, node_iter, &nictx);
bintree_free(&tree);
memcpy(buff_u64, &item_loc, sizeof(uint64_t));
error:
rmsgpack_dom_value_free(&item);
if (buff)
free(buff);
if (cur.is_valid)
libretrodb_cursor_close(&cur);
return 0;
if (bintree_insert(&tree, buff) != 0)
{
printf("Value is not unique: ");
rmsgpack_dom_value_print(field);
printf("\n");
rv = -EINVAL;
goto clean;
}
buff = NULL;
rmsgpack_dom_value_free(&item);
item_loc = libretrodb_tell(db);
}
(void)rv;
(void)idx_header_offset;
idx_header_offset = lseek(db->fd, 0, SEEK_END);
strncpy(idx.name, name, 50);
idx.name[49] = '\0';
idx.key_size = field_size;
idx.next = db->count * (field_size + sizeof(uint64_t));
libretrodb_write_index_header(db->fd, &idx);
nictx.db = db;
nictx.idx = &idx;
bintree_iterate(&tree, node_iter, &nictx);
bintree_free(&tree);
clean:
rmsgpack_dom_value_free(&item);
if (buff)
free(buff);
if (cur.is_valid)
libretrodb_cursor_close(&cur);
return 0;
}

7
libretro-db/libretrodb.h
View File

@ -1,7 +1,6 @@
#ifndef __LIBRETRODB_H__
#define __LIBRETRODB_H__
#include <stdio.h>
#include <stdint.h>
#ifdef _WIN32
#include <direct.h>
@ -20,7 +19,7 @@ typedef struct libretrodb_query libretrodb_query_t;
typedef struct libretrodb
{
FILE *fp;
int fd;
uint64_t root;
uint64_t count;
uint64_t first_index_offset;
@ -48,7 +47,7 @@ typedef struct libretrodb_header
typedef struct libretrodb_cursor
{
int is_valid;
FILE *fp;
int fd;
int eof;
libretrodb_query_t * query;
libretrodb_t * db;
@ -57,7 +56,7 @@ typedef struct libretrodb_cursor
typedef int (* libretrodb_value_provider)(void * ctx,
struct rmsgpack_dom_value * out);
int libretrodb_create(FILE *fp, libretrodb_value_provider value_provider,
int libretrodb_create(int fd, libretrodb_value_provider value_provider,
void * ctx);
void libretrodb_close(libretrodb_t * db);

6
libretro-db/libretrodb_tool.c
View File

@ -31,7 +31,7 @@ int main(int argc, char ** argv)
printf("Could not open db file '%s': %s\n", path, strerror(-rv));
return 1;
}
else if (!strcmp(command, "list"))
else if (strcmp(command, "list") == 0)
{
if ((rv = libretrodb_cursor_open(&db, &cur, NULL)) != 0)
{
@ -52,7 +52,7 @@ int main(int argc, char ** argv)
rmsgpack_dom_value_free(&item);
}
}
else if (!strcmp(command, "find"))
else if (strcmp(command, "find") == 0)
{
if (argc != 4)
{
@ -83,7 +83,7 @@ int main(int argc, char ** argv)
rmsgpack_dom_value_free(&item);
}
}
else if (!strcmp(command, "create-index"))
else if (strcmp(command, "create-index") == 0)
{
const char * index_name, * field_name;

172
libretro-db/lua_common.c
View File

@ -3,97 +3,91 @@
#include <stdlib.h>
#include <string.h>
int libretrodb_lua_to_rmsgpack_value(lua_State * L, int index, struct rmsgpack_dom_value * out)
{
lua_Number tmp_num;
size_t tmp_len;
int i, rv = -1;
const char * tmp_string = NULL;
char * tmp_buff = NULL;
struct rmsgpack_dom_value * tmp_value;
const int key_idx = -2;
const int value_idx = -1;
const int MAX_FIELDS = 100;
int libretrodb_lua_to_rmsgpack_value(
lua_State * L,
int index,
struct rmsgpack_dom_value * out
) {
out->type = RDT_MAP;
out->val.map.len = 0;
out->val.map.items = calloc(MAX_FIELDS, sizeof(struct rmsgpack_dom_pair));
lua_pushnil(L);
int rv = -1;
int i;
const char * tmp_string = NULL;
char * tmp_buff = NULL;
struct rmsgpack_dom_value * tmp_value;
const int key_idx = -2;
const int value_idx = -1;
const int MAX_FIELDS = 100;
size_t tmp_len;
lua_Number tmp_num;
while (lua_next(L, index - 1) != 0)
{
if (out->val.map.len > MAX_FIELDS)
printf("skipping due to too many keys\n");
else if (!lua_isstring(L, key_idx))
printf("skipping non string key\n");
else if (lua_isnil(L, value_idx))
{
// Skipping nil value fields to save disk space
}
else
{
i = out->val.map.len;
tmp_buff = strdup(lua_tostring(L, key_idx));
out->val.map.items[i].key.type = RDT_STRING;
out->val.map.items[i].key.val.string.len = strlen(tmp_buff);
out->val.map.items[i].key.val.string.buff = tmp_buff;
out->type = RDT_MAP;
out->map.len = 0;
out->map.items = calloc(MAX_FIELDS, sizeof(struct rmsgpack_dom_pair));
lua_pushnil(L);
while (lua_next(L, index - 1) != 0) {
if (out->map.len > MAX_FIELDS) {
printf("skipping due to too many keys\n");
} else if (!lua_isstring(L, key_idx)) {
printf("skipping non string key\n");
} else if (lua_isnil(L, value_idx)) {
// Skipping nil value fields to save disk space
} else {
i = out->map.len;
tmp_buff = strdup(lua_tostring(L, key_idx));
out->map.items[i].key.type = RDT_STRING;
out->map.items[i].key.string.len = strlen(tmp_buff);
out->map.items[i].key.string.buff = tmp_buff;
tmp_value = &out->val.map.items[i].value;
switch (lua_type(L, value_idx))
{
case LUA_TNUMBER:
tmp_num = lua_tonumber(L, value_idx);
tmp_value->type = RDT_INT;
tmp_value->val.int_ = tmp_num;
break;
case LUA_TBOOLEAN:
tmp_value->type = RDT_BOOL;
tmp_value->val.bool_ = lua_toboolean(L, value_idx);
break;
case LUA_TSTRING:
tmp_buff = strdup(lua_tostring(L, value_idx));
tmp_value->type = RDT_STRING;
tmp_value->val.string.len = strlen(tmp_buff);
tmp_value->val.string.buff = tmp_buff;
break;
case LUA_TTABLE:
lua_getfield(L, value_idx, "binary");
if (!lua_isstring(L, -1))
{
lua_pop(L, 1);
lua_getfield(L, value_idx, "uint");
if (!lua_isnumber(L, -1))
{
lua_pop(L, 1);
goto set_nil;
}
else
{
tmp_num = lua_tonumber(L, -1);
tmp_value->type = RDT_UINT;
tmp_value->val.uint_ = tmp_num;
lua_pop(L, 1);
}
}
else
{
tmp_string = lua_tolstring(L, -1, &tmp_len);
tmp_buff = malloc(tmp_len);
memcpy(tmp_buff, tmp_string, tmp_len);
tmp_value->type = RDT_BINARY;
tmp_value->val.binary.len = tmp_len;
tmp_value->val.binary.buff = tmp_buff;
lua_pop(L, 1);
}
break;
default:
tmp_value = &out->map.items[i].value;
switch (lua_type(L, value_idx)) {
case LUA_TNUMBER:
tmp_num = lua_tonumber(L, value_idx);
tmp_value->type = RDT_INT;
tmp_value->int_ = tmp_num;
break;
case LUA_TBOOLEAN:
tmp_value->type = RDT_BOOL;
tmp_value->bool_ = lua_toboolean(L, value_idx);
break;
case LUA_TSTRING:
tmp_buff = strdup(lua_tostring(L, value_idx));
tmp_value->type = RDT_STRING;
tmp_value->string.len = strlen(tmp_buff);
tmp_value->string.buff = tmp_buff;
break;
case LUA_TTABLE:
lua_getfield(L, value_idx, "binary");
if (!lua_isstring(L, -1)) {
lua_pop(L, 1);
lua_getfield(L, value_idx, "uint");
if (!lua_isnumber(L, -1)) {
lua_pop(L, 1);
goto set_nil;
} else {
tmp_num = lua_tonumber(L, -1);
tmp_value->type = RDT_UINT;
tmp_value->uint_ = tmp_num;
lua_pop(L, 1);
}
} else {
tmp_string = lua_tolstring(L, -1, &tmp_len);
tmp_buff = malloc(tmp_len);
memcpy(tmp_buff, tmp_string, tmp_len);
tmp_value->type = RDT_BINARY;
tmp_value->binary.len = tmp_len;
tmp_value->binary.buff = tmp_buff;
lua_pop(L, 1);
}
break;
default:
set_nil:
tmp_value->type = RDT_NULL;
}
out->val.map.len++;
}
lua_pop(L, 1);
}
rv = 0;
return rv;
tmp_value->type = RDT_NULL;
}
out->map.len++;
}
lua_pop(L, 1);
}
rv = 0;
return rv;
}

148
libretro-db/lua_converter.c
View File

@ -20,100 +20,94 @@ function binary(s) if s ~= nil then return {binary = s} else return nil end end
function uint(s) if s ~= nil then return {uint = s} else return nil end end \
";
static int call_init(
lua_State * L,
int argc,
const char ** argv
) {
int rv = -1;
int i;
static int call_init(lua_State * L, int argc, const char ** argv)
{
int rv = -1;
int i;
lua_getglobal(L, "init");
for (i = 0; i < argc; i++) {
lua_pushstring(L, argv[i]);
}
lua_getglobal(L, "init");
for (i = 0; i < argc; i++)
lua_pushstring(L, argv[i]);
if (lua_pcall(L, argc, 0, 0) != 0) {
printf(
"error running function `init': %s\n",
lua_tostring(L, -1)
);
}
if (lua_pcall(L, argc, 0, 0) != 0)
{
printf(
"error running function `init': %s\n",
lua_tostring(L, -1)
);
}
return rv;
return rv;
}
static int value_provider(
void * ctx,
struct rmsgpack_dom_value * out
) {
int rv;
lua_State * L = ctx;
static int value_provider(void * ctx, struct rmsgpack_dom_value *out)
{
int rv;
lua_State * L = ctx;
lua_getglobal(L, "get_value");
lua_getglobal(L, "get_value");
if (lua_pcall(L, 0, 1, 0) != 0) {
printf(
"error running function `get_value': %s\n",
lua_tostring(L, -1)
);
}
if (lua_pcall(L, 0, 1, 0) != 0)
{
printf(
"error running function `get_value': %s\n",
lua_tostring(L, -1)
);
}
if (lua_isnil(L, -1)) {
rv = 1;
} else if (lua_istable(L, -1)) {
rv = libretrodb_lua_to_rmsgpack_value(L, -1, out);
} else {
printf("function `get_value' must return a table or nil\n");
}
lua_pop(L, 1);
return rv;
if (lua_isnil(L, -1))
rv = 1;
else if (lua_istable(L, -1))
rv = libretrodb_lua_to_rmsgpack_value(L, -1, out);
else
printf("function `get_value' must return a table or nil\n");
lua_pop(L, 1);
return rv;
}
int main(
int argc,
char ** argv
){
const char * db_file;
const char * lua_file;
int dst = -1;
int rv = 0;
int main(int argc, char ** argv)
{
const char * db_file;
const char * lua_file;
int dst = -1;
int rv = 0;
if (argc < 3) {
printf("usage:\n%s <db file> <lua file> [args ...]\n", argv[0]);
return 1;
}
if (argc < 3)
{
printf("usage:\n%s <db file> <lua file> [args ...]\n", argv[0]);
return 1;
}
db_file = argv[1];
lua_file = argv[2];
db_file = argv[1];
lua_file = argv[2];
lua_State * L = luaL_newstate();
luaL_openlibs(L);
luaL_dostring(L, LUA_COMMON);
lua_State * L = luaL_newstate();
luaL_openlibs(L);
luaL_dostring(L, LUA_COMMON);
if (luaL_dofile(L, lua_file) != 0) {
return 1;
}
if (luaL_dofile(L, lua_file) != 0)
return 1;
call_init(L, argc - 2, (const char **) argv + 2);
call_init(L, argc - 2, (const char **) argv + 2);
dst = open(db_file, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
if (dst == -1) {
printf(
"Could not open destination file '%s': %s\n",
db_file,
strerror(errno)
);
rv = errno;
goto clean;
}
dst = open(db_file, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
if (dst == -1)
{
printf(
"Could not open destination file '%s': %s\n",
db_file,
strerror(errno)
);
rv = errno;
goto clean;
}
rv = libretrodb_create(dst, &value_provider, L);
rv = libretrodb_create(dst, &value_provider, L);
clean:
lua_close(L);
if (dst != -1) {
close(dst);
}
return rv;
lua_close(L);
if (dst != -1)
close(dst);
return rv;
}

363
libretro-db/query.c
View File

@ -8,32 +8,30 @@
#include <ctype.h>
#include <string.h>
#include <compat/fnmatch.h>
#include <compat/strl.h>
#include "libretrodb.h"
#include "query.h"
#include "rmsgpack_dom.h"
#include <compat/fnmatch.h>
#define MAX_ERROR_LEN 256
#undef MAX_ARGS
#define MAX_ARGS 50
static char tmp_error_buff [MAX_ERROR_LEN] = {0};
static char tmp_error_buff [MAX_ERROR_LEN] = {};
struct buffer
{
const char *data;
size_t len;
off_t offset;
const char *data;
size_t len;
off_t offset;
};
/* Errors */
static void raise_too_many_arguments(const char **error)
{
strlcpy(tmp_error_buff,
"Too many arguments in function call.", sizeof(tmp_error_buff));
*error = tmp_error_buff;
snprintf(tmp_error_buff, MAX_ERROR_LEN,
"Too many arguments in function call.");
*error = tmp_error_buff;
}
static void raise_expected_number(off_t where, const char **error)
@ -75,12 +73,12 @@ static void raise_unexpected_eof(off_t where, const char ** error)
static void raise_enomem(const char **error)
{
strlcpy(tmp_error_buff, "Out of memory", sizeof(tmp_error_buff));
snprintf(tmp_error_buff, MAX_ERROR_LEN, "Out of memory");
*error = tmp_error_buff;
}
static void raise_unknown_function(off_t where, const char *name,
ssize_t len, const char **error)
size_t len, const char **error)
{
int n = snprintf(tmp_error_buff, MAX_ERROR_LEN,
#ifdef _WIN32
@ -133,26 +131,26 @@ enum argument_type
struct argument;
typedef struct rmsgpack_dom_value (*rarch_query_func)(
struct rmsgpack_dom_value input,
unsigned argc,
const struct argument *argv
);
struct rmsgpack_dom_value input,
unsigned argc,
const struct argument *argv
);
struct invocation
{
rarch_query_func func;
unsigned argc;
struct argument *argv;
rarch_query_func func;
unsigned argc;
struct argument *argv;
};
struct argument
{
enum argument_type type;
union
enum argument_type type;
union
{
struct rmsgpack_dom_value value;
struct invocation invocation;
} a;
struct rmsgpack_dom_value value;
struct invocation invocation;
};
};
static void argument_free(struct argument *arg)
@ -161,85 +159,82 @@ static void argument_free(struct argument *arg)
if (arg->type != AT_FUNCTION)
{
rmsgpack_dom_value_free(&arg->a.value);
rmsgpack_dom_value_free(&arg->value);
return;
}
for (i = 0; i < arg->a.invocation.argc; i++)
argument_free(&arg->a.invocation.argv[i]);
for (i = 0; i < arg->invocation.argc; i++)
argument_free(&arg->invocation.argv[i]);
}
struct query
{
unsigned ref_count;
struct invocation root;
unsigned ref_count;
struct invocation root;
};
struct registered_func
{
const char *name;
rarch_query_func func;
const char *name;
rarch_query_func func;
};
static struct buffer parse_argument(struct buffer buff, struct argument *arg,
const char **error);
static struct rmsgpack_dom_value is_true(struct rmsgpack_dom_value input,
unsigned argc, const struct argument *argv)
unsigned argc, const struct argument *argv)
{
struct rmsgpack_dom_value res;
memset(&res, 0, sizeof(res));
res.type = RDT_BOOL;
res.val.bool_ = 0;
res.type = RDT_BOOL;
res.bool_ = 0;
if (argc > 0 || input.type != RDT_BOOL)
res.val.bool_ = 0;
res.bool_ = 0;
else
res.val.bool_ = input.val.bool_;
res.bool_ = input.bool_;
return res;
}
static struct rmsgpack_dom_value equals(struct rmsgpack_dom_value input,
unsigned argc, const struct argument * argv)
unsigned argc, const struct argument * argv)
{
struct argument arg;
struct rmsgpack_dom_value res;
memset(&res, 0, sizeof(res));
struct argument arg;
res.type = RDT_BOOL;
if (argc != 1)
res.val.bool_ = 0;
res.bool_ = 0;
else
{
arg = argv[0];
if (arg.type != AT_VALUE)
res.val.bool_ = 0;
res.bool_ = 0;
else
{
if (input.type == RDT_UINT && arg.a.value.type == RDT_INT)
if (input.type == RDT_UINT && arg.value.type == RDT_INT)
{
arg.a.value.type = RDT_UINT;
arg.a.value.val.uint_ = arg.a.value.val.int_;
arg.value.type = RDT_UINT;
arg.value.uint_ = arg.value.int_;
}
res.val.bool_ = (rmsgpack_dom_value_cmp(&input, &arg.a.value) == 0);
res.bool_ = (rmsgpack_dom_value_cmp(&input, &arg.value) == 0);
}
}
return res;
}
static struct rmsgpack_dom_value operator_or(struct rmsgpack_dom_value input,
unsigned argc, const struct argument * argv)
unsigned argc, const struct argument * argv)
{
unsigned i;
struct rmsgpack_dom_value res;
memset(&res, 0, sizeof(res));
unsigned i;
res.type = RDT_BOOL;
res.val.bool_ = 0;
res.bool_ = 0;
for (i = 0; i < argc; i++)
{
@ -247,13 +242,13 @@ static struct rmsgpack_dom_value operator_or(struct rmsgpack_dom_value input,
res = equals(input, 1, &argv[i]);
else
{
res = is_true(argv[i].a.invocation.func(input,
argv[i].a.invocation.argc,
argv[i].a.invocation.argv
res = is_true(argv[i].invocation.func(input,
argv[i].invocation.argc,
argv[i].invocation.argv
), 0, NULL);
}
if (res.val.bool_)
if (res.bool_)
return res;
}
@ -264,12 +259,10 @@ static struct rmsgpack_dom_value between(struct rmsgpack_dom_value input,
unsigned argc, const struct argument * argv)
{
struct rmsgpack_dom_value res;
unsigned i = 0;
memset(&res, 0, sizeof(res));
unsigned i = 0;
res.type = RDT_BOOL;
res.val.bool_ = 0;
res.bool_ = 0;
(void)i;
@ -277,16 +270,16 @@ static struct rmsgpack_dom_value between(struct rmsgpack_dom_value input,
return res;
if (argv[0].type != AT_VALUE || argv[1].type != AT_VALUE)
return res;
if (argv[0].a.value.type != RDT_INT || argv[1].a.value.type != RDT_INT)
if (argv[0].value.type != RDT_INT || argv[1].value.type != RDT_INT)
return res;
switch (input.type)
{
case RDT_INT:
res.val.bool_ = ((input.val.int_ >= argv[0].a.value.val.int_) && (input.val.int_ <= argv[1].a.value.val.int_));
res.bool_ = input.int_ >= argv[0].value.int_ && input.int_ <= argv[1].value.int_;
break;
case RDT_UINT:
res.val.bool_ = (((unsigned)input.val.int_ >= argv[0].a.value.val.uint_) && (input.val.int_ <= argv[1].a.value.val.int_));
res.bool_ = input.int_ >= argv[0].value.uint_ && input.int_ <= argv[1].value.int_;
break;
default:
return res;
@ -298,12 +291,11 @@ static struct rmsgpack_dom_value between(struct rmsgpack_dom_value input,
static struct rmsgpack_dom_value operator_and(struct rmsgpack_dom_value input,
unsigned argc, const struct argument * argv)
{
unsigned i;
struct rmsgpack_dom_value res;
memset(&res, 0, sizeof(res));
unsigned i;
res.type = RDT_BOOL;
res.val.bool_ = 0;
res.bool_ = 0;
for (i = 0; i < argc; i++)
{
@ -312,14 +304,14 @@ static struct rmsgpack_dom_value operator_and(struct rmsgpack_dom_value input,
else
{
res = is_true(
argv[i].a.invocation.func(input,
argv[i].a.invocation.argc,
argv[i].a.invocation.argv
argv[i].invocation.func(input,
argv[i].invocation.argc,
argv[i].invocation.argv
),
0, NULL);
}
if (!res.val.bool_)
if (!res.bool_)
return res;
}
return res;
@ -330,22 +322,21 @@ static struct rmsgpack_dom_value q_glob(struct rmsgpack_dom_value input,
{
struct rmsgpack_dom_value res;
unsigned i = 0;
memset(&res, 0, sizeof(res));
res.type = RDT_BOOL;
res.val.bool_ = 0;
res.bool_ = 0;
(void)i;
if (argc != 1)
return res;
if (argv[0].type != AT_VALUE || argv[0].a.value.type != RDT_STRING)
if (argv[0].type != AT_VALUE || argv[0].value.type != RDT_STRING)
return res;
if (input.type != RDT_STRING)
return res;
res.val.bool_ = rl_fnmatch(
argv[0].a.value.val.string.buff,
input.val.string.buff,
res.bool_ = rl_fnmatch(
argv[0].value.string.buff,
input.string.buff,
0
) == 0;
return res;
@ -354,20 +345,19 @@ static struct rmsgpack_dom_value q_glob(struct rmsgpack_dom_value input,
static struct rmsgpack_dom_value all_map(struct rmsgpack_dom_value input,
unsigned argc, const struct argument *argv)
{
unsigned i;
struct argument arg;
struct rmsgpack_dom_value res;
struct rmsgpack_dom_value nil_value;
struct rmsgpack_dom_value *value = NULL;
memset(&res, 0, sizeof(res));
struct argument arg;
struct rmsgpack_dom_value nil_value;
unsigned i;
nil_value.type = RDT_NULL;
res.type = RDT_BOOL;
res.val.bool_ = 1;
res.bool_ = 1;
if (argc % 2 != 0)
{
res.val.bool_ = 0;
res.bool_ = 0;
return res;
}
@ -379,10 +369,10 @@ static struct rmsgpack_dom_value all_map(struct rmsgpack_dom_value input,
arg = argv[i];
if (arg.type != AT_VALUE)
{
res.val.bool_ = 0;
res.bool_ = 0;
goto clean;
}
value = rmsgpack_dom_value_map_value(&input, &arg.a.value);
value = rmsgpack_dom_value_map_value(&input, &arg.value);
if (!value) /* All missing fields are nil */
value = &nil_value;
arg = argv[i + 1];
@ -390,14 +380,14 @@ static struct rmsgpack_dom_value all_map(struct rmsgpack_dom_value input,
res = equals(*value, 1, &arg);
else
{
res = is_true(arg.a.invocation.func(
res = is_true(arg.invocation.func(
*value,
arg.a.invocation.argc,
arg.a.invocation.argv
arg.invocation.argc,
arg.invocation.argv
), 0, NULL);
value = NULL;
}
if (!res.val.bool_)
if (!res.bool_)
break;
}
clean:
@ -405,24 +395,26 @@ clean:
}
struct registered_func registered_functions[100] = {
{"is_true", is_true},
{"or", operator_or},
{"and", operator_and},
{"between", between},
{"glob", q_glob},
{NULL, NULL}
{"is_true", is_true},
{"or", operator_or},
{"and", operator_and},
{"between", between},
{"glob", q_glob},
{NULL, NULL}
};
static struct buffer chomp(struct buffer buff)
{
for (; (unsigned)buff.offset < buff.len && isspace((int)buff.data[buff.offset]); buff.offset++);
off_t i = 0;
(void)i;
for (; buff.offset < buff.len && isspace(buff.data[buff.offset]); buff.offset++);
return buff;
}
static struct buffer expect_char(struct buffer buff,
char c, const char ** error)
{
if ((unsigned)buff.offset >= buff.len)
if (buff.offset >= buff.len)
raise_unexpected_eof(buff.offset, error);
else if (buff.data[buff.offset] != c)
raise_unexpected_char(
@ -435,7 +427,7 @@ static struct buffer expect_char(struct buffer buff,
static struct buffer expect_eof(struct buffer buff, const char ** error)
{
buff = chomp(buff);
if ((unsigned)buff.offset < buff.len)
if (buff.offset < buff.len)
raise_expected_eof(buff.offset, buff.data[buff.offset], error);
return buff;
}
@ -453,7 +445,7 @@ static int peek(struct buffer buff, const char * data)
static int is_eot(struct buffer buff)
{
return ((unsigned)buff.offset >= buff.len);
return (buff.offset >= buff.len);
}
static void peek_char(struct buffer buff, char *c, const char **error)
@ -470,23 +462,22 @@ static void peek_char(struct buffer buff, char *c, const char **error)
static struct buffer get_char(struct buffer buff, char * c,
const char ** error)
{
if (is_eot(buff))
if (is_eot(buff))
{
raise_unexpected_eof(buff.offset, error);
return buff;
}
*c = buff.data[buff.offset];
buff.offset++;
return buff;
raise_unexpected_eof(buff.offset, error);
return buff;
}
*c = buff.data[buff.offset];
buff.offset++;
return buff;
}
static struct buffer parse_string(struct buffer buff,
struct rmsgpack_dom_value *value, const char **error)
{
const char * str_start = NULL;
char terminator = '\0';
char c = '\0';
int is_binstr = 0;
const char * str_start;
char terminator = '\0';
char c = '\0';
(void)c;
@ -495,12 +486,6 @@ static struct buffer parse_string(struct buffer buff,
if (*error)
return buff;
if (terminator == 'b')
{
is_binstr = 1;
buff = get_char(buff, &terminator, error);
}
if (terminator != '"' && terminator != '\'')
{
buff.offset--;
@ -519,44 +504,18 @@ static struct buffer parse_string(struct buffer buff,
if (!*error)
{
size_t count;
value->type = is_binstr ? RDT_BINARY : RDT_STRING;
value->val.string.len = (buff.data + buff.offset) - str_start - 1;
value->type = RDT_STRING;
value->string.len = (buff.data + buff.offset) - str_start - 1;
value->string.buff = (char*)calloc(value->string.len + 1, sizeof(char));
count = is_binstr ? (value->val.string.len + 1) / 2 : (value->val.string.len + 1);
value->val.string.buff = (char*)calloc(count, sizeof(char));
if (!value->val.string.buff)
if (!value->string.buff)
raise_enomem(error);
else if (is_binstr)
{
unsigned i;
const char *tok = str_start;
unsigned j = 0;
for (i = 0; i < value->val.string.len; i += 2)
{
uint8_t hi, lo;
char hic = tok[i];
char loc = tok[i + 1];
if (hic <= '9')
hi = hic - '0';
else
hi = (hic - 'A') + 10;
if (loc <= '9')
lo = loc - '0';
else
lo = (loc - 'A') + 10;
value->val.string.buff[j++] = hi * 16 + lo;
}
value->val.string.len = j;
}
else
memcpy(value->val.string.buff, str_start, value->val.string.len);
memcpy(
value->string.buff,
str_start,
value->string.len
);
}
return buff;
}
@ -572,11 +531,11 @@ static struct buffer parse_integer(struct buffer buff,
#else
"%lld",
#endif
(signed long long*)&value->val.int_) == 0)
(signed long long*)&value->int_) == 0)
raise_expected_number(buff.offset, error);
else
{
while (isdigit((int)buff.data[buff.offset]))
while (isdigit(buff.data[buff.offset]))
buff.offset++;
}
return buff;
@ -596,17 +555,17 @@ static struct buffer parse_value(struct buffer buff,
{
buff.offset += strlen("true");
value->type = RDT_BOOL;
value->val.bool_ = 1;
value->bool_ = 1;
}
else if (peek(buff, "false"))
{
buff.offset += strlen("false");
value->type = RDT_BOOL;
value->val.bool_ = 0;
value->bool_ = 0;
}
else if (peek(buff, "b") || peek(buff, "\"") || peek(buff, "'"))
else if (peek(buff, "\"") || peek(buff, "'"))
buff = parse_string(buff, value, error);
else if (isdigit((int)buff.data[buff.offset]))
else if (isdigit(buff.data[buff.offset]))
buff = parse_integer(buff, value, error);
return buff;
}
@ -617,28 +576,28 @@ static struct buffer get_ident(struct buffer buff,
{
char c = '\0';
if (is_eot(buff))
if (is_eot(buff))
{
raise_unexpected_eof(buff.offset, error);
return buff;
}
*ident = buff.data + buff.offset;
*len = 0;
peek_char(buff, &c, error);
*ident = buff.data + buff.offset;
*len = 0;
peek_char(buff, &c, error);
if (*error)
goto clean;
if (!isalpha((int)c))
return buff;
if (*error)
goto clean;
if (!isalpha(c))
return buff;
buff.offset++;
*len = *len + 1;
peek_char(buff, &c, error);
buff.offset++;
*len = *len + 1;
peek_char(buff, &c, error);
while (!*error)
while (!*error)
{
if (!(isalpha((int)c) || isdigit((int)c) || c == '_'))
if (!(isalpha(c) || isdigit(c) || c == '_'))
break;
buff.offset++;
*len = *len + 1;
@ -646,18 +605,18 @@ static struct buffer get_ident(struct buffer buff,
}
clean:
return buff;
return buff;
}
static struct buffer parse_method_call(struct buffer buff,
struct invocation *invocation, const char **error)
{
const char *func_name;
size_t func_name_len;
unsigned i;
struct argument args[MAX_ARGS];
unsigned argi = 0;
const char *func_name = NULL;
struct registered_func *rf = registered_functions;
struct registered_func * rf = registered_functions;
invocation->func = NULL;
@ -740,12 +699,14 @@ success:
static struct buffer parse_table(struct buffer buff,
struct invocation *invocation, const char **error)
{
unsigned i;
size_t ident_len;
struct argument args[MAX_ARGS];
const char *ident_name = NULL;
unsigned i;
const char *ident_name;
size_t ident_len;
unsigned argi = 0;
memset(args, 0, sizeof(struct argument) * MAX_ARGS);
buff = chomp(buff);
buff = expect_char(buff, '{', error);
@ -762,31 +723,31 @@ static struct buffer parse_table(struct buffer buff,
goto clean;
}
if (isalpha((int)buff.data[buff.offset]))
if (isalpha(buff.data[buff.offset]))
{
buff = get_ident(buff, &ident_name, &ident_len, error);
if (!*error)
{
args[argi].a.value.type = RDT_STRING;
args[argi].a.value.val.string.len = ident_len;
args[argi].a.value.val.string.buff = (char*)calloc(
args[argi].value.type = RDT_STRING;
args[argi].value.string.len = ident_len;
args[argi].value.string.buff = (char*)calloc(
ident_len + 1,
sizeof(char)
);
if (!args[argi].a.value.val.string.buff)
if (!args[argi].value.string.buff)
goto clean;
strncpy(
args[argi].a.value.val.string.buff,
args[argi].value.string.buff,
ident_name,
ident_len
);
}
}
else
buff = parse_string(buff, &args[argi].a.value, error);
buff = parse_string(buff, &args[argi].value, error);
if (*error)
goto clean;
@ -855,65 +816,63 @@ static struct buffer parse_argument(struct buffer buff,
buff = chomp(buff);
if (
isalpha((int)buff.data[buff.offset])
isalpha(buff.data[buff.offset])
&& !(
peek(buff, "nil")
|| peek(buff, "true")
|| peek(buff, "false")
|| peek(buff, "b\"") || peek(buff, "b'") /* bin string prefix*/
)
)
{
arg->type = AT_FUNCTION;
buff = parse_method_call(buff, &arg->a.invocation, error);
buff = parse_method_call(buff, &arg->invocation, error);
}
else if (peek(buff, "{"))
{
arg->type = AT_FUNCTION;
buff = parse_table(buff, &arg->a.invocation, error);
buff = parse_table(buff, &arg->invocation, error);
}
else
{
arg->type = AT_VALUE;
buff = parse_value(buff, &arg->a.value, error);
buff = parse_value(buff, &arg->value, error);
}
return buff;
}
void libretrodb_query_free(void *q)
{
unsigned i;
struct query *real_q = (struct query*)q;
unsigned i;
struct query * real_q = (struct query*)q;
real_q->ref_count--;
if (real_q->ref_count > 0)
return;
real_q->ref_count--;
if (real_q->ref_count > 0)
return;
for (i = 0; i < real_q->root.argc; i++)
argument_free(&real_q->root.argv[i]);
free(real_q->root.argv);
real_q->root.argv = NULL;
real_q->root.argc = 0;
free(real_q);
for (i = 0; i < real_q->root.argc; i++)
argument_free(&real_q->root.argv[i]);
}
void *libretrodb_query_compile(libretrodb_t *db,
const char *query, size_t buff_len, const char **error)
{
struct buffer buff;
struct query *q = (struct query*)calloc(1, sizeof(*q));
struct query *q = (struct query*)malloc(sizeof(struct query));
if (!q)
goto clean;
memset(q, 0, sizeof(struct query));
q->ref_count = 1;
buff.data = query;
buff.len = buff_len;
buff.offset = 0;
*error = NULL;
buff = chomp(buff);
buff = chomp(buff);
if (peek(buff, "{"))
{
@ -921,7 +880,7 @@ void *libretrodb_query_compile(libretrodb_t *db,
if (*error)
goto clean;
}
else if (isalpha((int)buff.data[buff.offset]))
else if (isalpha(buff.data[buff.offset]))
buff = parse_method_call(buff, &q->root, error);
buff = expect_eof(buff, error);
@ -953,5 +912,5 @@ int libretrodb_query_filter(libretrodb_query_t *q,
{
struct invocation inv = ((struct query *)q)->root;
struct rmsgpack_dom_value res = inv.func(*v, inv.argc, inv.argv);
return (res.type == RDT_BOOL && res.val.bool_);
return (res.type == RDT_BOOL && res.bool_);
}

202
libretro-db/rmsgpack.c
View File

@ -55,18 +55,7 @@ static const uint8_t MPF_UINT64 = 0xcf;
static const uint8_t MPF_NIL = 0xc0;
static INLINE ssize_t fpwrite(FILE *fp, const void *buf, size_t count)
{
return (fwrite(buf, 1, count, fp) != count) ? -1 : (ssize_t)count;
}
static INLINE ssize_t fpread(FILE *fp, void *buf, size_t count)
{
size_t num_read = fread(buf, 1, count, fp);
return num_read != count && ferror(fp) ? -1 : (ssize_t)num_read;
}
int rmsgpack_write_array_header(FILE *fp, uint32_t size)
int rmsgpack_write_array_header(int fd, uint32_t size)
{
uint16_t tmp_i16;
uint32_t tmp_i32;
@ -74,29 +63,29 @@ int rmsgpack_write_array_header(FILE *fp, uint32_t size)
if (size < 16)
{
size = (size | MPF_FIXARRAY);
if (fpwrite(fp, &size, sizeof(int8_t)) == -1)
if (write(fd, &size, sizeof(int8_t)) == -1)
return -errno;
return sizeof(int8_t);
}
else if (size == (uint16_t)size)
{
if (fpwrite(fp, &MPF_ARRAY16, sizeof(MPF_ARRAY16)) == -1)
if (write(fd, &MPF_ARRAY16, sizeof(MPF_ARRAY16)) == -1)
return -errno;
tmp_i16 = httobe16(size);
if (fpwrite(fp, (void *)(&tmp_i16), sizeof(uint16_t)) == -1)
if (write(fd, (void *)(&tmp_i16), sizeof(uint16_t)) == -1)
return -errno;
return sizeof(int8_t) + sizeof(uint16_t);
}
if (fpwrite(fp, &MPF_ARRAY32, sizeof(MPF_ARRAY32)) == -1)
if (write(fd, &MPF_ARRAY32, sizeof(MPF_ARRAY32)) == -1)
return -errno;
tmp_i32 = httobe32(size);
if (fpwrite(fp, (void *)(&tmp_i32), sizeof(uint32_t)) == -1)
if (write(fd, (void *)(&tmp_i32), sizeof(uint32_t)) == -1)
return -errno;
return sizeof(int8_t) + sizeof(uint32_t);
}
int rmsgpack_write_map_header(FILE *fp, uint32_t size)
int rmsgpack_write_map_header(int fd, uint32_t size)
{
uint16_t tmp_i16;
uint32_t tmp_i32;
@ -104,29 +93,29 @@ int rmsgpack_write_map_header(FILE *fp, uint32_t size)
if (size < 16)
{
size = (size | MPF_FIXMAP);
if (fpwrite(fp, &size, sizeof(int8_t)) == -1)
if (write(fd, &size, sizeof(int8_t)) == -1)
return -errno;
return sizeof(int8_t);
}
else if (size < (uint16_t)size)
{
if (fpwrite(fp, &MPF_MAP16, sizeof(MPF_MAP16)) == -1)
if (write(fd, &MPF_MAP16, sizeof(MPF_MAP16)) == -1)
return -errno;
tmp_i16 = httobe16(size);
if (fpwrite(fp, (void *)(&tmp_i16), sizeof(uint16_t)) == -1)
if (write(fd, (void *)(&tmp_i16), sizeof(uint16_t)) == -1)
return -errno;
return sizeof(uint8_t) + sizeof(uint16_t);
}
tmp_i32 = httobe32(size);
if (fpwrite(fp, &MPF_MAP32, sizeof(MPF_MAP32)) == -1)
if (write(fd, &MPF_MAP32, sizeof(MPF_MAP32)) == -1)
return -errno;
if (fpwrite(fp, (void *)(&tmp_i32), sizeof(uint32_t)) == -1)
if (write(fd, (void *)(&tmp_i32), sizeof(uint32_t)) == -1)
return -errno;
return sizeof(int8_t) + sizeof(uint32_t);
}
int rmsgpack_write_string(FILE *fp, const char *s, uint32_t len)
int rmsgpack_write_string(int fd, const char *s, uint32_t len)
{
int8_t fixlen = 0;
uint16_t tmp_i16;
@ -136,43 +125,43 @@ int rmsgpack_write_string(FILE *fp, const char *s, uint32_t len)
if (len < 32)
{
fixlen = len | MPF_FIXSTR;
if (fpwrite(fp, &fixlen, sizeof(int8_t)) == -1)
if (write(fd, &fixlen, sizeof(int8_t)) == -1)
return -errno;
}
else if (len < (1 << 8))
{
if (fpwrite(fp, &MPF_STR8, sizeof(MPF_STR8)) == -1)
if (write(fd, &MPF_STR8, sizeof(MPF_STR8)) == -1)
return -errno;
if (fpwrite(fp, &len, sizeof(uint8_t)) == -1)
if (write(fd, &len, sizeof(uint8_t)) == -1)
return -errno;
written += sizeof(uint8_t);
}
else if (len < (1 << 16))
{
if (fpwrite(fp, &MPF_STR16, sizeof(MPF_STR16)) == -1)
if (write(fd, &MPF_STR16, sizeof(MPF_STR16)) == -1)
return -errno;
tmp_i16 = httobe16(len);
if (fpwrite(fp, &tmp_i16, sizeof(uint16_t)) == -1)
if (write(fd, &tmp_i16, sizeof(uint16_t)) == -1)
return -errno;
written += sizeof(uint16_t);
}
else
{
if (fpwrite(fp, &MPF_STR32, sizeof(MPF_STR32)) == -1)
if (write(fd, &MPF_STR32, sizeof(MPF_STR32)) == -1)
return -errno;
tmp_i32 = httobe32(len);
if (fpwrite(fp, &tmp_i32, sizeof(uint32_t)) == -1)
if (write(fd, &tmp_i32, sizeof(uint32_t)) == -1)
return -errno;
written += sizeof(uint32_t);
}
if (fpwrite(fp, s, len) == -1)
if (write(fd, s, len) == -1)
return -errno;
written += len;
return written;
}
int rmsgpack_write_bin(FILE *fp, const void *s, uint32_t len)
int rmsgpack_write_bin(int fd, const void *s, uint32_t len)
{
uint16_t tmp_i16;
uint32_t tmp_i32;
@ -180,58 +169,58 @@ int rmsgpack_write_bin(FILE *fp, const void *s, uint32_t len)
if (len == (uint8_t)len)
{
if (fpwrite(fp, &MPF_BIN8, sizeof(MPF_BIN8)) == -1)
if (write(fd, &MPF_BIN8, sizeof(MPF_BIN8)) == -1)
return -errno;
if (fpwrite(fp, &len, sizeof(uint8_t)) == -1)
if (write(fd, &len, sizeof(uint8_t)) == -1)
return -errno;
written += sizeof(uint8_t);
}
else if (len == (uint16_t)len)
{
if (fpwrite(fp, &MPF_BIN16, sizeof(MPF_BIN16)) == -1)
if (write(fd, &MPF_BIN16, sizeof(MPF_BIN16)) == -1)
return -errno;
tmp_i16 = httobe16(len);
if (fpwrite(fp, &tmp_i16, sizeof(uint16_t)) == -1)
if (write(fd, &tmp_i16, sizeof(uint16_t)) == -1)
return -errno;
written += sizeof(uint16_t);
}
else
{
if (fpwrite(fp, &MPF_BIN32, sizeof(MPF_BIN32)) == -1)
if (write(fd, &MPF_BIN32, sizeof(MPF_BIN32)) == -1)
return -errno;
tmp_i32 = httobe32(len);
if (fpwrite(fp, &tmp_i32, sizeof(uint32_t)) == -1)
if (write(fd, &tmp_i32, sizeof(uint32_t)) == -1)
return -errno;
written += sizeof(uint32_t);
}
if (fpwrite(fp, s, len) == -1)
if (write(fd, s, len) == -1)
return -errno;
written += len;
return 0;
}
int rmsgpack_write_nil(FILE *fp)
int rmsgpack_write_nil(int fd)
{
if (fpwrite(fp, &MPF_NIL, sizeof(MPF_NIL)) == -1)
if (write(fd, &MPF_NIL, sizeof(MPF_NIL)) == -1)
return -errno;
return sizeof(uint8_t);
}
int rmsgpack_write_bool(FILE *fp, int value)
int rmsgpack_write_bool(int fd, int value)
{
if (value)
{
if (fpwrite(fp, &MPF_TRUE, sizeof(MPF_TRUE)) == -1)
if (write(fd, &MPF_TRUE, sizeof(MPF_TRUE)) == -1)
return -errno;
}
if (fpwrite(fp, &MPF_FALSE, sizeof(MPF_FALSE)) == -1)
if (write(fd, &MPF_FALSE, sizeof(MPF_FALSE)) == -1)
return -errno;
return sizeof(uint8_t);
}
int rmsgpack_write_int(FILE *fp, int64_t value)
int rmsgpack_write_int(int fd, int64_t value)
{
int16_t tmp_i16;
int32_t tmp_i32;
@ -240,58 +229,58 @@ int rmsgpack_write_int(FILE *fp, int64_t value)
if (value >=0 && value < 128)
{
if (fpwrite(fp, &value, sizeof(int8_t)) == -1)
if (write(fd, &value, sizeof(int8_t)) == -1)
return -errno;
}
else if (value < 0 && value > -32)
{
tmpval = (value) | 0xe0;
if (fpwrite(fp, &tmpval, sizeof(uint8_t)) == -1)
if (write(fd, &tmpval, sizeof(uint8_t)) == -1)
return -errno;
}
else if (value == (int8_t)value)
{
if (fpwrite(fp, &MPF_INT8, sizeof(MPF_INT8)) == -1)
if (write(fd, &MPF_INT8, sizeof(MPF_INT8)) == -1)
return -errno;
if (fpwrite(fp, &value, sizeof(int8_t)) == -1)
if (write(fd, &value, sizeof(int8_t)) == -1)
return -errno;
written += sizeof(int8_t);
}
else if (value == (int16_t)value)
{
if (fpwrite(fp, &MPF_INT16, sizeof(MPF_INT16)) == -1)
if (write(fd, &MPF_INT16, sizeof(MPF_INT16)) == -1)
return -errno;
tmp_i16 = httobe16(value);
if (fpwrite(fp, &tmp_i16, sizeof(int16_t)) == -1)
if (write(fd, &tmp_i16, sizeof(int16_t)) == -1)
return -errno;
written += sizeof(int16_t);
}
else if (value == (int32_t)value)
{
if (fpwrite(fp, &MPF_INT32, sizeof(MPF_INT32)) == -1)
if (write(fd, &MPF_INT32, sizeof(MPF_INT32)) == -1)
return -errno;
tmp_i32 = httobe32(value);
if (fpwrite(fp, &tmp_i32, sizeof(int32_t)) == -1)
if (write(fd, &tmp_i32, sizeof(int32_t)) == -1)
return -errno;
written += sizeof(int32_t);
}
else
{
if (fpwrite(fp, &MPF_INT64, sizeof(MPF_INT64)) == -1)
if (write(fd, &MPF_INT64, sizeof(MPF_INT64)) == -1)
return -errno;
value = httobe64(value);
if (fpwrite(fp, &value, sizeof(int64_t)) == -1)
if (write(fd, &value, sizeof(int64_t)) == -1)
return -errno;
written += sizeof(int64_t);
}
return written;
}
int rmsgpack_write_uint(FILE *fp, uint64_t value)
int rmsgpack_write_uint(int fd, uint64_t value)
{
uint16_t tmp_i16;
uint32_t tmp_i32;
@ -299,51 +288,51 @@ int rmsgpack_write_uint(FILE *fp, uint64_t value)
if (value == (uint8_t)value)
{
if (fpwrite(fp, &MPF_UINT8, sizeof(MPF_UINT8)) == -1)
if (write(fd, &MPF_UINT8, sizeof(MPF_UINT8)) == -1)
return -errno;
if (fpwrite(fp, &value, sizeof(uint8_t)) == -1)
if (write(fd, &value, sizeof(uint8_t)) == -1)
return -errno;
written += sizeof(uint8_t);
}
else if (value == (uint16_t)value)
{
if (fpwrite(fp, &MPF_UINT16, sizeof(MPF_UINT16)) == -1)
if (write(fd, &MPF_UINT16, sizeof(MPF_UINT16)) == -1)
return -errno;
tmp_i16 = httobe16(value);
if (fpwrite(fp, &tmp_i16, sizeof(uint16_t)) == -1)
if (write(fd, &tmp_i16, sizeof(uint16_t)) == -1)
return -errno;
written += sizeof(uint16_t);
}
else if (value == (uint32_t)value)
{
if (fpwrite(fp, &MPF_UINT32, sizeof(MPF_UINT32)) == -1)
if (write(fd, &MPF_UINT32, sizeof(MPF_UINT32)) == -1)
return -errno;
tmp_i32 = httobe32(value);
if (fpwrite(fp, &tmp_i32, sizeof(uint32_t)) == -1)
if (write(fd, &tmp_i32, sizeof(uint32_t)) == -1)
return -errno;
written += sizeof(uint32_t);
}
else
{
if (fpwrite(fp, &MPF_UINT64, sizeof(MPF_UINT64)) == -1)
if (write(fd, &MPF_UINT64, sizeof(MPF_UINT64)) == -1)
return -errno;
value = httobe64(value);
if (fpwrite(fp, &value, sizeof(uint64_t)) == -1)
if (write(fd, &value, sizeof(uint64_t)) == -1)
return -errno;
written += sizeof(uint64_t);
}
return written;
}
static int read_uint(FILE *fp, uint64_t *out, size_t size)
static int read_uint(int fd, uint64_t *out, size_t size)
{
uint64_t tmp;
if (fpread(fp, &tmp, size) == -1)
if (read(fd, &tmp, size) == -1)
return -errno;
switch (size)
@ -364,15 +353,18 @@ static int read_uint(FILE *fp, uint64_t *out, size_t size)
return 0;
}
static int read_int(FILE *fp, int64_t *out, size_t size)
static int read_int(int fd, int64_t *out, size_t size)
{
uint8_t tmp8 = 0;
uint16_t tmp16;
uint32_t tmp32;
uint64_t tmp64;
if (fpread(fp, &tmp64, size) == -1)
if (read(fd, &tmp64, size) == -1)
return -errno;
(void)tmp8;
switch (size)
{
case 1:
@ -391,34 +383,30 @@ static int read_int(FILE *fp, int64_t *out, size_t size)
*out = *((int64_t *)(&tmp64));
break;
}
return 0;
}
static int read_buff(FILE *fp, size_t size, char **pbuff, uint64_t *len)
static int read_buff(int fd, size_t size, char **pbuff, uint64_t *len)
{
uint64_t tmp_len = 0;
if (read_uint(fp, &tmp_len, size) == -1)
goto error;
if (read_uint(fd, &tmp_len, size) == -1)
return -errno;
*pbuff = (char *)calloc((size_t)tmp_len + 1, sizeof(char));
*pbuff = (char *)calloc(tmp_len + 1, sizeof(char));
if (fpread(fp, *pbuff, (size_t)tmp_len) == -1)
goto error;
if (read(fd, *pbuff, tmp_len) == -1)
{
free(*pbuff);
return -errno;
}
*len = tmp_len;
return 0;
error:
if (*pbuff)
free(*pbuff);
return -errno;
}
static int read_map(FILE *fp, uint32_t len,
struct rmsgpack_read_callbacks *callbacks, void *data)
static int read_map(int fd, uint32_t len,
struct rmsgpack_read_callbacks *callbacks, void *data)
{
int rv;
unsigned i;
@ -429,16 +417,16 @@ static int read_map(FILE *fp, uint32_t len,
for (i = 0; i < len; i++)
{
if ((rv = rmsgpack_read(fp, callbacks, data)) < 0)
if ((rv = rmsgpack_read(fd, callbacks, data)) < 0)
return rv;
if ((rv = rmsgpack_read(fp, callbacks, data)) < 0)
if ((rv = rmsgpack_read(fd, callbacks, data)) < 0)
return rv;
}
return 0;
}
static int read_array(FILE *fp, uint32_t len,
static int read_array(int fd, uint32_t len,
struct rmsgpack_read_callbacks *callbacks, void *data)
{
int rv;
@ -450,14 +438,14 @@ static int read_array(FILE *fp, uint32_t len,
for (i = 0; i < len; i++)
{
if ((rv = rmsgpack_read(fp, callbacks, data)) < 0)
if ((rv = rmsgpack_read(fd, callbacks, data)) < 0)
return rv;
}
return 0;
}
int rmsgpack_read(FILE *fp,
int rmsgpack_read(int fd,
struct rmsgpack_read_callbacks *callbacks, void *data)
{
int rv;
@ -467,7 +455,7 @@ int rmsgpack_read(FILE *fp,
uint8_t type = 0;
char *buff = NULL;
if (fpread(fp, &type, sizeof(uint8_t)) == -1)
if (read(fd, &type, sizeof(uint8_t)) == -1)
return -errno;
if (type < MPF_FIXMAP)
@ -479,20 +467,20 @@ int rmsgpack_read(FILE *fp,
else if (type < MPF_FIXARRAY)
{
tmp_len = type - MPF_FIXMAP;
return read_map(fp, (uint32_t)tmp_len, callbacks, data);
return read_map(fd, tmp_len, callbacks, data);
}
else if (type < MPF_FIXSTR)
{
tmp_len = type - MPF_FIXARRAY;
return read_array(fp, (size_t)tmp_len, callbacks, data);
return read_array(fd, tmp_len, callbacks, data);
}
else if (type < MPF_NIL)
{
tmp_len = type - MPF_FIXSTR;
buff = (char *)calloc((size_t)tmp_len + 1, sizeof(char));
buff = (char *)calloc(tmp_len + 1, sizeof(char));
if (!buff)
return -ENOMEM;
if (fpread(fp, buff, (size_t)tmp_len) == -1)
if (read(fd, buff, tmp_len) == -1)
{
free(buff);
return -errno;
@ -503,7 +491,7 @@ int rmsgpack_read(FILE *fp,
free(buff);
return 0;
}
return callbacks->read_string(buff, (size_t)tmp_len, data);
return callbacks->read_string(buff, tmp_len, data);
}
else if (type > MPF_MAP32)
{
@ -529,20 +517,20 @@ int rmsgpack_read(FILE *fp,
case 0xc4:
case 0xc5:
case 0xc6:
if ((rv = read_buff(fp, 1<<(type - 0xc4),
if ((rv = read_buff(fd, 1<<(type - 0xc4),
&buff, &tmp_len)) < 0)
return rv;
if (callbacks->read_bin)
return callbacks->read_bin(buff, (size_t)tmp_len, data);
return callbacks->read_bin(buff, tmp_len, data);
break;
case 0xcc:
case 0xcd:
case 0xce:
case 0xcf:
tmp_len = UINT32_C(1) << (type - 0xcc);
tmp_len = 1ULL << (type - 0xcc);
tmp_uint = 0;
if (read_uint(fp, &tmp_uint, (size_t)tmp_len) == -1)
if (read_uint(fd, &tmp_uint, tmp_len) == -1)
return -errno;
if (callbacks->read_uint)
@ -552,9 +540,9 @@ int rmsgpack_read(FILE *fp,
case 0xd1:
case 0xd2:
case 0xd3:
tmp_len = UINT32_C(1) << (type - 0xd0);
tmp_len = 1ULL << (type - 0xd0);
tmp_int = 0;
if (read_int(fp, &tmp_int, (size_t)tmp_len) == -1)
if (read_int(fd, &tmp_int, tmp_len) == -1)
return -errno;
if (callbacks->read_int)
@ -563,24 +551,24 @@ int rmsgpack_read(FILE *fp,
case 0xd9:
case 0xda:
case 0xdb:
if ((rv = read_buff(fp, 1<<(type - 0xd9), &buff, &tmp_len)) < 0)
if ((rv = read_buff(fd, 1<<(type - 0xd9), &buff, &tmp_len)) < 0)
return rv;
if (callbacks->read_string)
return callbacks->read_string(buff, (size_t)tmp_len, data);
return callbacks->read_string(buff, tmp_len, data);
break;
case 0xdc:
case 0xdd:
if (read_uint(fp, &tmp_len, 2<<(type - 0xdc)) == -1)
if (read_uint(fd, &tmp_len, 2<<(type - 0xdc)) == -1)
return -errno;
return read_array(fp, (size_t)tmp_len, callbacks, data);
return read_array(fd, tmp_len, callbacks, data);
case 0xde:
case 0xdf:
if (read_uint(fp, &tmp_len, 2<<(type - 0xde)) == -1)
if (read_uint(fd, &tmp_len, 2<<(type - 0xde)) == -1)
return -errno;
return read_map(fp, (size_t)tmp_len, callbacks, data);
return read_map(fd, tmp_len, callbacks, data);
}
return 0;

19
libretro-db/rmsgpack.h
View File

@ -1,7 +1,6 @@
#ifndef __RARCHDB_MSGPACK_H__
#define __RARCHDB_MSGPACK_H__
#include <stdio.h>
#include <stdint.h>
struct rmsgpack_read_callbacks {
@ -40,39 +39,39 @@ struct rmsgpack_read_callbacks {
int rmsgpack_write_array_header(
FILE *fp,
int fd,
uint32_t size
);
int rmsgpack_write_map_header(
FILE *fp,
int fd,
uint32_t size
);
int rmsgpack_write_string(
FILE *fp,
int fd,
const char * s,
uint32_t len
);
int rmsgpack_write_bin(
FILE *fp,
int fd,
const void * s,
uint32_t len
);
int rmsgpack_write_nil(FILE *fp);
int rmsgpack_write_nil(int fd);
int rmsgpack_write_bool(
FILE *fp,
int fd,
int value
);
int rmsgpack_write_int(
FILE *fp,
int fd,
int64_t value
);
int rmsgpack_write_uint(
FILE *fp,
int fd,
uint64_t value
);
int rmsgpack_read(
FILE *fp,
int fd,
struct rmsgpack_read_callbacks * callbacks,
void * data
);

334
libretro-db/rmsgpack_dom.c
View File

@ -13,74 +13,24 @@
struct dom_reader_state
{
int i;
struct rmsgpack_dom_value *stack[MAX_DEPTH];
int i;
struct rmsgpack_dom_value *stack[MAX_DEPTH];
};
static struct rmsgpack_dom_value *dom_reader_state_pop(
struct dom_reader_state *s)
static struct rmsgpack_dom_value *dom_reader_state_pop(struct dom_reader_state *s)
{
struct rmsgpack_dom_value *v = s->stack[s->i];
s->i--;
return v;
struct rmsgpack_dom_value *v = s->stack[s->i];
s->i--;
return v;
}
static void puts_i64(int64_t dec)
static int dom_reader_state_push(struct dom_reader_state *s, struct rmsgpack_dom_value *v)
{
unsigned i;
signed j;
signed char digits[19 + 1] = {0}; /* max i64: 9,223,372,036,854,775,807 */
uint64_t decimal = (dec < 0) ? (uint64_t)-dec : (uint64_t)+dec;
digits[19] = '\0';
for (j = sizeof(digits) - 2; j >= 0; j--)
{
digits[j] = decimal % 10;
decimal /= 10;
}
for (i = 0; i < sizeof(digits) - 1; i++)
digits[i] += '0';
for (i = 0; i < sizeof(digits) - 2; i++)
if (digits[i] != '0')
break; /* Don't print leading zeros to the console. */
if (dec < 0)
putchar('-');
fputs((char *)&digits[i], stdout);
}
static void puts_u64(uint64_t decimal)
{
signed j;
unsigned i;
char digits[20 + 1] = {0}; /* max u64: 18,446,744,073,709,551,616 */
for (j = sizeof(digits) - 2; j >= 0; j--)
{
digits[j] = decimal % 10;
decimal /= 10;
}
for (i = 0; i < sizeof(digits) - 1; i++)
digits[i] += '0';
for (i = 0; i < sizeof(digits) - 2; i++)
if (digits[i] != '0')
break; /* Don't print leading zeros to the console. */
fputs(&digits[i], stdout);
}
static int dom_reader_state_push(struct dom_reader_state *s,
struct rmsgpack_dom_value *v)
{
if ((s->i + 1) == MAX_DEPTH)
return -ENOMEM;
s->i++;
s->stack[s->i] = v;
return 0;
if ((s->i + 1) == MAX_DEPTH)
return -ENOMEM;
s->i++;
s->stack[s->i] = v;
return 0;
}
static int dom_read_nil(void *data)
@ -99,7 +49,7 @@ static int dom_read_bool(int value, void *data)
(struct rmsgpack_dom_value*)dom_reader_state_pop(dom_state);
v->type = RDT_BOOL;
v->val.bool_ = value;
v->bool_ = value;
return 0;
}
@ -110,7 +60,7 @@ static int dom_read_int(int64_t value, void *data)
(struct rmsgpack_dom_value*)dom_reader_state_pop(dom_state);
v->type = RDT_INT;
v->val.int_ = value;
v->int_ = value;
return 0;
}
@ -121,7 +71,7 @@ static int dom_read_uint(uint64_t value, void *data)
(struct rmsgpack_dom_value*)dom_reader_state_pop(dom_state);
v->type = RDT_UINT;
v->val.uint_ = value;
v->uint_ = value;
return 0;
}
@ -132,8 +82,8 @@ static int dom_read_string(char *value, uint32_t len, void *data)
(struct rmsgpack_dom_value*)dom_reader_state_pop(dom_state);
v->type = RDT_STRING;
v->val.string.len = len;
v->val.string.buff = value;
v->string.len = len;
v->string.buff = value;
return 0;
}
@ -142,10 +92,10 @@ static int dom_read_bin(void *value, uint32_t len, void *data)
struct dom_reader_state *dom_state = (struct dom_reader_state *)data;
struct rmsgpack_dom_value *v =
(struct rmsgpack_dom_value*)dom_reader_state_pop(dom_state);
v->type = RDT_BINARY;
v->val.binary.len = len;
v->val.binary.buff = (char *)value;
v->binary.len = len;
v->binary.buff = (char *)value;
return 0;
}
@ -157,8 +107,8 @@ static int dom_read_map_start(uint32_t len, void *data)
struct rmsgpack_dom_value *v = dom_reader_state_pop(dom_state);
v->type = RDT_MAP;
v->val.map.len = len;
v->val.map.items = NULL;
v->map.len = len;
v->map.items = NULL;
items = (struct rmsgpack_dom_pair *)calloc(len,
sizeof(struct rmsgpack_dom_pair));
@ -166,7 +116,7 @@ static int dom_read_map_start(uint32_t len, void *data)
if (!items)
return -ENOMEM;
v->val.map.items = items;
v->map.items = items;
for (i = 0; i < len; i++)
{
@ -181,40 +131,40 @@ static int dom_read_map_start(uint32_t len, void *data)
static int dom_read_array_start(uint32_t len, void *data)
{
unsigned i;
struct dom_reader_state *dom_state = (struct dom_reader_state *)data;
struct rmsgpack_dom_value *v = dom_reader_state_pop(dom_state);
struct rmsgpack_dom_value *items = NULL;
unsigned i;
struct dom_reader_state *dom_state = (struct dom_reader_state *)data;
struct rmsgpack_dom_value *v = dom_reader_state_pop(dom_state);
struct rmsgpack_dom_value *items = NULL;
v->type = RDT_ARRAY;
v->val.array.len = len;
v->val.array.items = NULL;
v->type = RDT_ARRAY;
v->array.len = len;
v->array.items = NULL;
items = (struct rmsgpack_dom_value *)calloc(len, sizeof(struct rmsgpack_dom_pair));
items = (struct rmsgpack_dom_value *)calloc(len, sizeof(struct rmsgpack_dom_pair));
if (!items)
return -ENOMEM;
if (!items)
return -ENOMEM;
v->val.array.items = items;
v->array.items = items;
for (i = 0; i < len; i++)
for (i = 0; i < len; i++)
{
if (dom_reader_state_push(dom_state, &items[i]) < 0)
return -ENOMEM;
}
return 0;
return 0;
}
static struct rmsgpack_read_callbacks dom_reader_callbacks = {
dom_read_nil,
dom_read_bool,
dom_read_int,
dom_read_uint,
dom_read_string,
dom_read_bin,
dom_read_map_start,
dom_read_array_start
dom_read_nil,
dom_read_bool,
dom_read_int,
dom_read_uint,
dom_read_string,
dom_read_bin,
dom_read_map_start,
dom_read_array_start
};
void rmsgpack_dom_value_free(struct rmsgpack_dom_value *v)
@ -224,33 +174,29 @@ void rmsgpack_dom_value_free(struct rmsgpack_dom_value *v)
switch (v->type)
{
case RDT_STRING:
free(v->val.string.buff);
v->val.string.buff = NULL;
free(v->string.buff);
break;
case RDT_BINARY:
free(v->val.binary.buff);
v->val.binary.buff = NULL;
free(v->binary.buff);
break;
case RDT_MAP:
for (i = 0; i < v->val.map.len; i++)
for (i = 0; i < v->map.len; i++)
{
rmsgpack_dom_value_free(&v->val.map.items[i].key);
rmsgpack_dom_value_free(&v->val.map.items[i].value);
rmsgpack_dom_value_free(&v->map.items[i].key);
rmsgpack_dom_value_free(&v->map.items[i].value);
}
free(v->val.map.items);
v->val.map.items = NULL;
free(v->map.items);
break;
case RDT_ARRAY:
for (i = 0; i < v->val.array.len; i++)
rmsgpack_dom_value_free(&v->val.array.items[i]);
free(v->val.array.items);
v->val.array.items = NULL;
for (i = 0; i < v->array.len; i++)
rmsgpack_dom_value_free(&v->array.items[i]);
free(v->array.items);
break;
case RDT_NULL:
case RDT_INT:
case RDT_BOOL:
case RDT_UINT:
/* Do nothing */
// Do nothing
break;
}
}
@ -263,10 +209,10 @@ struct rmsgpack_dom_value *rmsgpack_dom_value_map_value(
if (map->type != RDT_MAP)
return NULL;
for (i = 0; i < map->val.map.len; i++)
for (i = 0; i < map->map.len; i++)
{
if (rmsgpack_dom_value_cmp(key, &map->val.map.items[i].key) == 0)
return &map->val.map.items[i].value;
if (rmsgpack_dom_value_cmp(key, &map->map.items[i].key) == 0)
return &map->map.items[i].value;
}
return NULL;
}
@ -274,7 +220,7 @@ struct rmsgpack_dom_value *rmsgpack_dom_value_map_value(
int rmsgpack_dom_value_cmp(
const struct rmsgpack_dom_value *a,
const struct rmsgpack_dom_value *b
)
)
{
int rv;
unsigned i;
@ -290,39 +236,39 @@ int rmsgpack_dom_value_cmp(
case RDT_NULL:
return 0;
case RDT_BOOL:
return (a->val.bool_ == b->val.bool_) ? 0 : 1;
return a->bool_ == b->bool_ ? 0 : 1;
case RDT_INT:
return (a->val.int_ == b->val.int_) ? 0 : 1;
return a->int_ == b->int_ ? 0 : 1;
case RDT_UINT:
return (a->val.uint_ == b->val.uint_) ? 0 : 1;
return a->uint_ == b->uint_ ? 0 : 1;
case RDT_STRING:
if (a->val.string.len != b->val.string.len)
if (a->string.len != b->string.len)
return 1;
return strncmp(a->val.string.buff, b->val.string.buff, a->val.string.len);
return strncmp(a->string.buff, b->string.buff, a->string.len);
case RDT_BINARY:
if (a->val.binary.len != b->val.binary.len)
if (a->binary.len != b->binary.len)
return 1;
return memcmp(a->val.binary.buff, b->val.binary.buff, a->val.binary.len);
return memcmp(a->binary.buff, b->binary.buff, a->binary.len);
case RDT_MAP:
if (a->val.map.len != b->val.map.len)
if (a->map.len != b->map.len)
return 1;
for (i = 0; i < a->val.map.len; i++)
for (i = 0; i < a->map.len; i++)
{
if ((rv = rmsgpack_dom_value_cmp(&a->val.map.items[i].key,
&b->val.map.items[i].key)) != 0)
if ((rv = rmsgpack_dom_value_cmp(&a->map.items[i].key,
&b->map.items[i].key)) != 0)
return rv;
if ((rv = rmsgpack_dom_value_cmp(&a->val.map.items[i].value,
&b->val.map.items[i].value)) != 0)
if ((rv = rmsgpack_dom_value_cmp(&a->map.items[i].value,
&b->map.items[i].value)) != 0)
return rv;
}
break;
case RDT_ARRAY:
if (a->val.array.len != b->val.array.len)
if (a->array.len != b->array.len)
return 1;
for (i = 0; i < a->val.array.len; i++)
for (i = 0; i < a->array.len; i++)
{
if ((rv = rmsgpack_dom_value_cmp(&a->val.array.items[i],
&b->val.array.items[i])) != 0)
if ((rv = rmsgpack_dom_value_cmp(&a->array.items[i],
&b->array.items[i])) != 0)
return rv;
}
break;
@ -341,91 +287,100 @@ void rmsgpack_dom_value_print(struct rmsgpack_dom_value *obj)
printf("nil");
break;
case RDT_BOOL:
if (obj->val.bool_)
if (obj->bool_)
printf("true");
else
printf("false");
break;
case RDT_INT:
puts_i64(obj->val.int_);
#ifdef _WIN32
printf("%I64d", (signed long long)obj->int_);
#else
printf("%lld", (signed long long)obj->int_);
#endif
break;
case RDT_UINT:
puts_u64(obj->val.uint_);
#ifdef _WIN32
printf("%I64u", (unsigned long long)obj->uint_);
#else
printf("%llu", (unsigned long long)obj->uint_);
#endif
break;
case RDT_STRING:
printf("\"%s\"", obj->val.string.buff);
break; case RDT_BINARY:
printf("\"%s\"", obj->string.buff);
break;
case RDT_BINARY:
printf("\"");
for (i = 0; i < obj->val.binary.len; i++)
printf("%02X", (unsigned char) obj->val.binary.buff[i]);
for (i = 0; i < obj->binary.len; i++)
printf("%02X", (unsigned char) obj->binary.buff[i]);
printf("\"");
break;
case RDT_MAP:
printf("{");
for (i = 0; i < obj->val.map.len; i++)
for (i = 0; i < obj->map.len; i++)
{
rmsgpack_dom_value_print(&obj->val.map.items[i].key);
rmsgpack_dom_value_print(&obj->map.items[i].key);
printf(": ");
rmsgpack_dom_value_print(&obj->val.map.items[i].value);
if (i < (obj->val.map.len - 1))
rmsgpack_dom_value_print(&obj->map.items[i].value);
if (i < (obj->map.len - 1))
printf(", ");
}
printf("}");
break;
case RDT_ARRAY:
printf("[");
for (i = 0; i < obj->val.array.len; i++)
for (i = 0; i < obj->array.len; i++)
{
rmsgpack_dom_value_print(&obj->val.array.items[i]);
if (i < (obj->val.array.len - 1))
rmsgpack_dom_value_print(&obj->array.items[i]);
if (i < (obj->array.len - 1))
printf(", ");
}
printf("]");
}
}
int rmsgpack_dom_write(FILE *fp, const struct rmsgpack_dom_value *obj)
int rmsgpack_dom_write(int fd, const struct rmsgpack_dom_value *obj)
{
unsigned i;
int rv = 0;
int rv = 0;
int written = 0;
switch (obj->type)
{
case RDT_NULL:
return rmsgpack_write_nil(fp);
return rmsgpack_write_nil(fd);
case RDT_BOOL:
return rmsgpack_write_bool(fp, obj->val.bool_);
return rmsgpack_write_bool(fd, obj->bool_);
case RDT_INT:
return rmsgpack_write_int(fp, obj->val.int_);
return rmsgpack_write_int(fd, obj->int_);
case RDT_UINT:
return rmsgpack_write_uint(fp, obj->val.uint_);
return rmsgpack_write_uint(fd, obj->uint_);
case RDT_STRING:
return rmsgpack_write_string(fp, obj->val.string.buff, obj->val.string.len);
return rmsgpack_write_string(fd, obj->string.buff, obj->string.len);
case RDT_BINARY:
return rmsgpack_write_bin(fp, obj->val.binary.buff, obj->val.binary.len);
return rmsgpack_write_bin(fd, obj->binary.buff, obj->binary.len);
case RDT_MAP:
if ((rv = rmsgpack_write_map_header(fp, obj->val.map.len)) < 0)
if ((rv = rmsgpack_write_map_header(fd, obj->map.len)) < 0)
return rv;
written += rv;
for (i = 0; i < obj->val.map.len; i++)
for (i = 0; i < obj->map.len; i++)
{
if ((rv = rmsgpack_dom_write(fp, &obj->val.map.items[i].key)) < 0)
if ((rv = rmsgpack_dom_write(fd, &obj->map.items[i].key)) < 0)
return rv;
written += rv;
if ((rv = rmsgpack_dom_write(fp, &obj->val.map.items[i].value)) < 0)
if ((rv = rmsgpack_dom_write(fd, &obj->map.items[i].value)) < 0)
return rv;
written += rv;
}
break;
case RDT_ARRAY:
if ((rv = rmsgpack_write_array_header(fp, obj->val.array.len)) < 0)
if ((rv = rmsgpack_write_array_header(fd, obj->array.len)) < 0)
return rv;
written += rv;
for (i = 0; i < obj->val.array.len; i++)
for (i = 0; i < obj->array.len; i++)
{
if ((rv = rmsgpack_dom_write(fp, &obj->val.array.items[i])) < 0)
if ((rv = rmsgpack_dom_write(fd, &obj->array.items[i])) < 0)
return rv;
written += rv;
}
@ -433,14 +388,15 @@ int rmsgpack_dom_write(FILE *fp, const struct rmsgpack_dom_value *obj)
return written;
}
int rmsgpack_dom_read(FILE *fp, struct rmsgpack_dom_value *out)
int rmsgpack_dom_read(int fd, struct rmsgpack_dom_value *out)
{
struct dom_reader_state s = {0};
int rv = 0;
struct dom_reader_state s;
int rv = 0;
s.i = 0;
s.stack[0] = out;
rv = rmsgpack_read(fp, &dom_reader_callbacks, &s);
rv = rmsgpack_read(fd, &dom_reader_callbacks, &s);
if (rv < 0)
rmsgpack_dom_value_free(out);
@ -448,23 +404,26 @@ int rmsgpack_dom_read(FILE *fp, struct rmsgpack_dom_value *out)
return rv;
}
int rmsgpack_dom_read_into(FILE *fp, ...)
int rmsgpack_dom_read_into(int fd, ...)
{
va_list ap;
int rv;
struct rmsgpack_dom_value map;
int rv;
const char *key_name;
struct rmsgpack_dom_value key;
struct rmsgpack_dom_value *value;
int64_t *int_value;
uint64_t *uint_value;
int *bool_value;
char *buff_value;
uint64_t min_len;
char *buff_value = NULL;
const char *key_name = NULL;
int value_type = 0;
va_start(ap, fp);
va_start(ap, fd);
rv = rmsgpack_dom_read(fp, &map);
rv = rmsgpack_dom_read(fd, &map);
(void)value_type;
if (rv < 0)
{
@ -473,18 +432,24 @@ int rmsgpack_dom_read_into(FILE *fp, ...)
}
if (map.type != RDT_MAP)
goto error;
{
rv = -EINVAL;
goto clean;
}
while (1)
{
key_name = va_arg(ap, const char *);
if (!key_name)
goto error;
{
rv = 0;
goto clean;
}
key.type = RDT_STRING;
key.val.string.len = strlen(key_name);
key.val.string.buff = (char *) key_name;
key.string.len = strlen(key_name);
key.string.buff = (char *) key_name;
value = rmsgpack_dom_value_map_value(&map, &key);
@ -492,40 +457,41 @@ int rmsgpack_dom_read_into(FILE *fp, ...)
{
case RDT_INT:
int_value = va_arg(ap, int64_t *);
*int_value = value->val.int_;
*int_value = value->int_;
break;
case RDT_BOOL:
bool_value = va_arg(ap, int *);
*bool_value = value->val.bool_;
*bool_value = value->bool_;
break;
case RDT_UINT:
uint_value = va_arg(ap, uint64_t *);
*uint_value = value->val.uint_;
*uint_value = value->uint_;
break;
case RDT_BINARY:
buff_value = va_arg(ap, char *);
uint_value = va_arg(ap, uint64_t *);
*uint_value = value->val.binary.len;
min_len = (value->val.binary.len > *uint_value) ?
*uint_value : value->val.binary.len;
*uint_value = value->binary.len;
min_len = (value->binary.len > *uint_value) ?
*uint_value : value->binary.len;
memcpy(buff_value, value->val.binary.buff, (size_t)min_len);
memcpy(buff_value, value->binary.buff, min_len);
break;
case RDT_STRING:
buff_value = va_arg(ap, char *);
uint_value = va_arg(ap, uint64_t *);
min_len = (value->val.string.len + 1 > *uint_value) ?
*uint_value : value->val.string.len + 1;
min_len = (value->string.len + 1 > *uint_value) ?
*uint_value : value->string.len + 1;
*uint_value = min_len;
memcpy(buff_value, value->val.string.buff, (size_t)min_len);
memcpy(buff_value, value->string.buff, min_len);
break;
default:
goto error;
rv = -1;
goto clean;
}
}
error:
clean:
va_end(ap);
rmsgpack_dom_value_free(&map);
return 0;

25
libretro-db/rmsgpack_dom.h
View File

@ -1,7 +1,6 @@
#ifndef __RARCHDB_MSGPACK_DOM_H__
#define __RARCHDB_MSGPACK_DOM_H__
#include <stdio.h>
#include <stdint.h>
#ifdef __cplusplus
@ -24,32 +23,24 @@ struct rmsgpack_dom_value {
union {
uint64_t uint_;
int64_t int_;
struct
{
struct {
uint32_t len;
char * buff;
} string;
struct
{
struct {
uint32_t len;
char * buff;
} binary;
int bool_;
struct
{
struct {
uint32_t len;
struct rmsgpack_dom_pair * items;
} map;
struct
{
struct {
uint32_t len;
struct rmsgpack_dom_value * items;
} array;
} val;
};
};
struct rmsgpack_dom_pair {
@ -70,15 +61,15 @@ struct rmsgpack_dom_value * rmsgpack_dom_value_map_value(
);
int rmsgpack_dom_read(
FILE *fp,
int fd,
struct rmsgpack_dom_value * out
);
int rmsgpack_dom_write(
FILE *fp,
int fd,
const struct rmsgpack_dom_value * obj
);
int rmsgpack_dom_read_into(FILE *fp, ...);
int rmsgpack_dom_read_into(int fd, ...);
#ifdef __cplusplus
}

37
libretro-db/rmsgpack_test.c
View File

@ -162,17 +162,42 @@ static struct rmsgpack_read_callbacks stub_callbacks = {
int main(void)
{
FILE *fp;
int fd;
/*
int fd = open("test.msgpack", O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
int rv = 0;
if (fd == -1)
{
printf("Could not open file: %s", strerror(errno));
return errno;
}
rmsgpack_write_map_header(fd, 2);
rmsgpack_write_string(fd, "compact", strlen("compact"));
rmsgpack_write_bool(fd, 1);
rmsgpack_write_string(fd, "schema", strlen("schema"));
rmsgpack_write_array_header(fd, 10);
rmsgpack_write_string(fd, "schema", strlen("schema"));
rmsgpack_write_uint(fd, 1<<17);
rmsgpack_write_int(fd, (1<<17) + 1);
rmsgpack_write_int(fd, 4);
rmsgpack_write_int(fd, -3);
rmsgpack_write_int(fd, -22);
rmsgpack_write_int(fd, -35);
rmsgpack_write_int(fd, -421421412);
rmsgpack_write_int(fd, 4214);
rmsgpack_write_int(fd, -4214);
rmsgpack_write_uint(fd, 1<<17);
close(fd);
*/
struct stub_state state;
state.i = 0;
state.stack[0] = 0;
fp = fopen("test.msgpack", "rb");
rmsgpack_read(fp, &stub_callbacks, &state);
fd = open("test.msgpack", O_RDONLY);
rmsgpack_read(fd, &stub_callbacks, &state);
printf("\n");
fclose(fp);
close(fd);
return 0;
}