#include "ewok.h"
#include "strbuf.h"
-int ewah_serialize_native(struct ewah_bitmap *self, int fd)
-{
- uint32_t write32;
- size_t to_write = self->buffer_size * 8;
-
- /* 32 bit -- bit size for the map */
- write32 = (uint32_t)self->bit_size;
- if (write(fd, &write32, 4) != 4)
- return -1;
-
- /** 32 bit -- number of compressed 64-bit words */
- write32 = (uint32_t)self->buffer_size;
- if (write(fd, &write32, 4) != 4)
- return -1;
-
- if (write(fd, self->buffer, to_write) != to_write)
- return -1;
-
- /** 32 bit -- position for the RLW */
- write32 = self->rlw - self->buffer;
- if (write(fd, &write32, 4) != 4)
- return -1;
-
- return (3 * 4) + to_write;
-}
-
int ewah_serialize_to(struct ewah_bitmap *self,
int (*write_fun)(void *, const void *, size_t),
void *data)
return (3 * 4) + (self->buffer_size * 8);
}
-static int write_helper(void *fd, const void *buf, size_t len)
-{
- return write((intptr_t)fd, buf, len);
-}
-
-int ewah_serialize(struct ewah_bitmap *self, int fd)
-{
- return ewah_serialize_to(self, write_helper, (void *)(intptr_t)fd);
-}
-
static int write_strbuf(void *user_data, const void *data, size_t len)
{
struct strbuf *sb = user_data;
return ptr - (const uint8_t *)map;
}
-
-int ewah_deserialize(struct ewah_bitmap *self, int fd)
-{
- size_t i;
- eword_t dump[2048];
- const size_t words_per_dump = sizeof(dump) / sizeof(eword_t);
- uint32_t bitsize, word_count, rlw_pos;
-
- eword_t *buffer = NULL;
- size_t words_left;
-
- ewah_clear(self);
-
- /* 32 bit -- bit size for the map */
- if (read(fd, &bitsize, 4) != 4)
- return -1;
-
- self->bit_size = (size_t)ntohl(bitsize);
-
- /** 32 bit -- number of compressed 64-bit words */
- if (read(fd, &word_count, 4) != 4)
- return -1;
-
- self->buffer_size = self->alloc_size = (size_t)ntohl(word_count);
- REALLOC_ARRAY(self->buffer, self->alloc_size);
-
- /** 64 bit x N -- compressed words */
- buffer = self->buffer;
- words_left = self->buffer_size;
-
- while (words_left >= words_per_dump) {
- if (read(fd, dump, sizeof(dump)) != sizeof(dump))
- return -1;
-
- for (i = 0; i < words_per_dump; ++i, ++buffer)
- *buffer = ntohll(dump[i]);
-
- words_left -= words_per_dump;
- }
-
- if (words_left) {
- if (read(fd, dump, words_left * 8) != words_left * 8)
- return -1;
-
- for (i = 0; i < words_left; ++i, ++buffer)
- *buffer = ntohll(dump[i]);
- }
-
- /** 32 bit -- position for the RLW */
- if (read(fd, &rlw_pos, 4) != 4)
- return -1;
-
- self->rlw = self->buffer + ntohl(rlw_pos);
- return 0;
-}