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(libretrodb) rmsgpack.c - cleanups

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This commit is contained in:
twinaphex 2015-09-17 10:33:26 +02:00
parent 6e4a6ab4b1
commit eee05742ba
1 changed files with 110 additions and 69 deletions
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179
libretro-db/rmsgpack.c
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@ -23,13 +23,23 @@
#include "libretrodb_endian.h"
static const uint8_t MPF_FIXMAP = 0x80;
static const uint8_t MPF_MAP16 = 0xde;
static const uint8_t MPF_MAP32 = 0xdf;
#define _MPF_FIXMAP 0x80
#define _MPF_MAP16 0xde
#define _MPF_MAP32 0xdf
static const uint8_t MPF_FIXARRAY = 0x90;
static const uint8_t MPF_ARRAY16 = 0xdc;
static const uint8_t MPF_ARRAY32 = 0xdd;
#define _MPF_FIXARRAY 0x90
#define _MPF_ARRAY16 0xdc
#define _MPF_ARRAY32 0xdd
#define _MPF_NIL 0xc0
static const uint8_t MPF_FIXMAP = _MPF_FIXMAP;
static const uint8_t MPF_MAP16 = _MPF_MAP16;
static const uint8_t MPF_MAP32 = _MPF_MAP32;
static const uint8_t MPF_FIXARRAY = _MPF_FIXARRAY;
static const uint8_t MPF_ARRAY16 = _MPF_ARRAY16;
static const uint8_t MPF_ARRAY32 = _MPF_ARRAY32;
static const uint8_t MPF_FIXSTR = 0xa0;
static const uint8_t MPF_STR8 = 0xd9;
@ -53,7 +63,7 @@ static const uint8_t MPF_UINT16 = 0xcd;
static const uint8_t MPF_UINT32 = 0xce;
static const uint8_t MPF_UINT64 = 0xcf;
static const uint8_t MPF_NIL = 0xc0;
static const uint8_t MPF_NIL = _MPF_NIL;
int rmsgpack_write_array_header(int fd, uint32_t size)
{
@ -64,25 +74,31 @@ int rmsgpack_write_array_header(int fd, uint32_t size)
{
size = (size | MPF_FIXARRAY);
if (write(fd, &size, sizeof(int8_t)) == -1)
return -errno;
goto error;
return sizeof(int8_t);
}
else if (size == (uint16_t)size)
{
if (write(fd, &MPF_ARRAY16, sizeof(MPF_ARRAY16)) == -1)
return -errno;
goto error;
tmp_i16 = httobe16(size);
if (write(fd, (void *)(&tmp_i16), sizeof(uint16_t)) == -1)
return -errno;
goto error;
return sizeof(int8_t) + sizeof(uint16_t);
}
if (write(fd, &MPF_ARRAY32, sizeof(MPF_ARRAY32)) == -1)
return -errno;
goto error;
tmp_i32 = httobe32(size);
if (write(fd, (void *)(&tmp_i32), sizeof(uint32_t)) == -1)
return -errno;
goto error;
return sizeof(int8_t) + sizeof(uint32_t);
error:
return -errno;
}
int rmsgpack_write_map_header(int fd, uint32_t size)
@ -94,71 +110,80 @@ int rmsgpack_write_map_header(int fd, uint32_t size)
{
size = (size | MPF_FIXMAP);
if (write(fd, &size, sizeof(int8_t)) == -1)
return -errno;
goto error;
return sizeof(int8_t);
}
else if (size < (uint16_t)size)
{
if (write(fd, &MPF_MAP16, sizeof(MPF_MAP16)) == -1)
return -errno;
goto error;
tmp_i16 = httobe16(size);
if (write(fd, (void *)(&tmp_i16), sizeof(uint16_t)) == -1)
return -errno;
goto error;
return sizeof(uint8_t) + sizeof(uint16_t);
}
tmp_i32 = httobe32(size);
if (write(fd, &MPF_MAP32, sizeof(MPF_MAP32)) == -1)
return -errno;
goto error;
if (write(fd, (void *)(&tmp_i32), sizeof(uint32_t)) == -1)
return -errno;
goto error;
return sizeof(int8_t) + sizeof(uint32_t);
error:
return -errno;
}
int rmsgpack_write_string(int fd, const char *s, uint32_t len)
{
int8_t fixlen = 0;
uint16_t tmp_i16;
uint32_t tmp_i32;
int written = sizeof(int8_t);
int8_t fixlen = 0;
int written = sizeof(int8_t);
if (len < 32)
{
fixlen = len | MPF_FIXSTR;
if (write(fd, &fixlen, sizeof(int8_t)) == -1)
return -errno;
goto error;
}
else if (len < (1 << 8))
{
if (write(fd, &MPF_STR8, sizeof(MPF_STR8)) == -1)
return -errno;
goto error;
if (write(fd, &len, sizeof(uint8_t)) == -1)
return -errno;
goto error;
written += sizeof(uint8_t);
}
else if (len < (1 << 16))
{
if (write(fd, &MPF_STR16, sizeof(MPF_STR16)) == -1)
return -errno;
goto error;
tmp_i16 = httobe16(len);
if (write(fd, &tmp_i16, sizeof(uint16_t)) == -1)
return -errno;
goto error;
written += sizeof(uint16_t);
}
else
{
if (write(fd, &MPF_STR32, sizeof(MPF_STR32)) == -1)
return -errno;
goto error;
tmp_i32 = httobe32(len);
if (write(fd, &tmp_i32, sizeof(uint32_t)) == -1)
return -errno;
goto error;
written += sizeof(uint32_t);
}
if (write(fd, s, len) == -1)
return -errno;
goto error;
written += len;
return written;
error:
return -errno;
}
int rmsgpack_write_bin(int fd, const void *s, uint32_t len)
@ -170,33 +195,38 @@ int rmsgpack_write_bin(int fd, const void *s, uint32_t len)
if (len == (uint8_t)len)
{
if (write(fd, &MPF_BIN8, sizeof(MPF_BIN8)) == -1)
return -errno;
goto error;
if (write(fd, &len, sizeof(uint8_t)) == -1)
return -errno;
goto error;
written += sizeof(uint8_t);
}
else if (len == (uint16_t)len)
{
if (write(fd, &MPF_BIN16, sizeof(MPF_BIN16)) == -1)
return -errno;
goto error;
tmp_i16 = httobe16(len);
if (write(fd, &tmp_i16, sizeof(uint16_t)) == -1)
return -errno;
goto error;
written += sizeof(uint16_t);
}
else
{
if (write(fd, &MPF_BIN32, sizeof(MPF_BIN32)) == -1)
return -errno;
goto error;
tmp_i32 = httobe32(len);
if (write(fd, &tmp_i32, sizeof(uint32_t)) == -1)
return -errno;
goto error;
written += sizeof(uint32_t);
}
if (write(fd, s, len) == -1)
return -errno;
goto error;
written += len;
return 0;
error:
return -errno;
}
int rmsgpack_write_nil(int fd)
@ -211,13 +241,16 @@ int rmsgpack_write_bool(int fd, int value)
if (value)
{
if (write(fd, &MPF_TRUE, sizeof(MPF_TRUE)) == -1)
return -errno;
goto error;
}
if (write(fd, &MPF_FALSE, sizeof(MPF_FALSE)) == -1)
return -errno;
goto error;
return sizeof(uint8_t);
error:
return -errno;
}
int rmsgpack_write_int(int fd, int64_t value)
@ -230,54 +263,58 @@ int rmsgpack_write_int(int fd, int64_t value)
if (value >=0 && value < 128)
{
if (write(fd, &value, sizeof(int8_t)) == -1)
return -errno;
goto error;
}
else if (value < 0 && value > -32)
{
tmpval = (value) | 0xe0;
if (write(fd, &tmpval, sizeof(uint8_t)) == -1)
return -errno;
goto error;
}
else if (value == (int8_t)value)
{
if (write(fd, &MPF_INT8, sizeof(MPF_INT8)) == -1)
return -errno;
goto error;
if (write(fd, &value, sizeof(int8_t)) == -1)
return -errno;
goto error;
written += sizeof(int8_t);
}
else if (value == (int16_t)value)
{
if (write(fd, &MPF_INT16, sizeof(MPF_INT16)) == -1)
return -errno;
goto error;
tmp_i16 = httobe16(value);
if (write(fd, &tmp_i16, sizeof(int16_t)) == -1)
return -errno;
goto error;
written += sizeof(int16_t);
}
else if (value == (int32_t)value)
{
if (write(fd, &MPF_INT32, sizeof(MPF_INT32)) == -1)
return -errno;
goto error;
tmp_i32 = httobe32(value);
if (write(fd, &tmp_i32, sizeof(int32_t)) == -1)
return -errno;
goto error;
written += sizeof(int32_t);
}
else
{
if (write(fd, &MPF_INT64, sizeof(MPF_INT64)) == -1)
return -errno;
goto error;
value = httobe64(value);
if (write(fd, &value, sizeof(int64_t)) == -1)
return -errno;
goto error;
written += sizeof(int64_t);
}
return written;
error:
return -errno;
}
int rmsgpack_write_uint(int fd, uint64_t value)
@ -289,43 +326,46 @@ int rmsgpack_write_uint(int fd, uint64_t value)
if (value == (uint8_t)value)
{
if (write(fd, &MPF_UINT8, sizeof(MPF_UINT8)) == -1)
return -errno;
goto error;
if (write(fd, &value, sizeof(uint8_t)) == -1)
return -errno;
goto error;
written += sizeof(uint8_t);
}
else if (value == (uint16_t)value)
{
if (write(fd, &MPF_UINT16, sizeof(MPF_UINT16)) == -1)
return -errno;
goto error;
tmp_i16 = httobe16(value);
if (write(fd, &tmp_i16, sizeof(uint16_t)) == -1)
return -errno;
goto error;
written += sizeof(uint16_t);
}
else if (value == (uint32_t)value)
{
if (write(fd, &MPF_UINT32, sizeof(MPF_UINT32)) == -1)
return -errno;
goto error;
tmp_i32 = httobe32(value);
if (write(fd, &tmp_i32, sizeof(uint32_t)) == -1)
return -errno;
goto error;
written += sizeof(uint32_t);
}
else
{
if (write(fd, &MPF_UINT64, sizeof(MPF_UINT64)) == -1)
return -errno;
goto error;
value = httobe64(value);
if (write(fd, &value, sizeof(uint64_t)) == -1)
return -errno;
goto error;
written += sizeof(uint64_t);
}
return written;
error:
return -errno;
}
static int read_uint(int fd, uint64_t *out, size_t size)
@ -456,7 +496,7 @@ int rmsgpack_read(int fd,
char *buff = NULL;
if (read(fd, &type, sizeof(uint8_t)) == -1)
return -errno;
goto error;
if (type < MPF_FIXMAP)
{
@ -483,7 +523,7 @@ int rmsgpack_read(int fd,
if (read(fd, buff, tmp_len) == -1)
{
free(buff);
return -errno;
goto error;
}
buff[tmp_len] = '\0';
if (!callbacks->read_string)
@ -502,7 +542,7 @@ int rmsgpack_read(int fd,
switch (type)
{
case 0xc0:
case _MPF_NIL:
if (callbacks->read_nil)
return callbacks->read_nil(data);
break;
@ -531,7 +571,7 @@ int rmsgpack_read(int fd,
tmp_len = UINT32_C(1) << (type - 0xcc);
tmp_uint = 0;
if (read_uint(fd, &tmp_uint, tmp_len) == -1)
return -errno;
goto error;
if (callbacks->read_uint)
return callbacks->read_uint(tmp_uint, data);
@ -543,7 +583,7 @@ int rmsgpack_read(int fd,
tmp_len = UINT32_C(1) << (type - 0xd0);
tmp_int = 0;
if (read_int(fd, &tmp_int, tmp_len) == -1)
return -errno;
goto error;
if (callbacks->read_int)
return callbacks->read_int(tmp_int, data);
@ -557,19 +597,20 @@ int rmsgpack_read(int fd,
if (callbacks->read_string)
return callbacks->read_string(buff, tmp_len, data);
break;
case 0xdc:
case 0xdd:
if (read_uint(fd, &tmp_len, 2<<(type - 0xdc)) == -1)
return -errno;
case _MPF_ARRAY16:
case _MPF_ARRAY32:
if (read_uint(fd, &tmp_len, 2<<(type - _MPF_ARRAY16)) == -1)
goto error;
return read_array(fd, tmp_len, callbacks, data);
case 0xde:
case 0xdf:
if (read_uint(fd, &tmp_len, 2<<(type - 0xde)) == -1)
return -errno;
case _MPF_MAP16:
case _MPF_MAP32:
if (read_uint(fd, &tmp_len, 2<<(type - _MPF_MAP16)) == -1)
goto error;
return read_map(fd, tmp_len, callbacks, data);
}
return 0;
error:
return -errno;
}