/* Saves an encoded length. The first two bits in the first byte are used to
* hold the encoding type. See the REDIS_RDB_* definitions for more information
* on the types of encoding. */
int rdbSaveLen(rio *rdb, uint32_t len) {
unsigned char buf[2];
size_t nwritten;
if (len < (1<<6)) {
/* Save a 6 bit len */
buf[0] = (len&0xFF)|(REDIS_RDB_6BITLEN<<6);
if (rdbWriteRaw(rdb,buf,1) == -1) return -1;
nwritten = 1;
} else if (len < (1<<14)) {
/* Save a 14 bit len */
buf[0] = ((len>>8)&0xFF)|(REDIS_RDB_14BITLEN<<6);
buf[1] = len&0xFF;
if (rdbWriteRaw(rdb,buf,2) == -1) return -1;
nwritten = 2;
} else {
int rdbSaveMillisecondTime(rio *rdb, long long t) {
int64_t t64 = (int64_t) t;
return rdbWriteRaw(rdb,&t64,8);
}
int rdbSaveTime(FILE *fp, time_t t) {
int32_t t32 = (int32_t) t;
return rdbWriteRaw(fp,&t32,4);
}
int rdbSaveType(rio *rdb, unsigned char type) {
return rdbWriteRaw(rdb,&type,1);
}
int rdbSaveType(FILE *fp, unsigned char type) {
return rdbWriteRaw(fp,&type,1);
}