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more generally usable i/o functions moved to syncio.c

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antirez
2010-10-25 10:49:15 +02:00
parent 19e61097c5
commit d08fac3eb9
3 changed files with 65 additions and 55 deletions
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49
src/aof.c
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@ -314,55 +314,6 @@ fmterr:
exit(1);
}
/* Write binary-safe string into a file in the bulkformat
* $<count>\r\n<payload>\r\n */
int fwriteBulkString(FILE *fp, char *s, unsigned long len) {
char cbuf[128];
int clen;
cbuf[0] = '$';
clen = 1+ll2string(cbuf+1,sizeof(cbuf)-1,len);
cbuf[clen++] = '\r';
cbuf[clen++] = '\n';
if (fwrite(cbuf,clen,1,fp) == 0) return 0;
if (len > 0 && fwrite(s,len,1,fp) == 0) return 0;
if (fwrite("\r\n",2,1,fp) == 0) return 0;
return 1;
}
/* Write a double value in bulk format $<count>\r\n<payload>\r\n */
int fwriteBulkDouble(FILE *fp, double d) {
char buf[128], dbuf[128];
snprintf(dbuf,sizeof(dbuf),"%.17g\r\n",d);
snprintf(buf,sizeof(buf),"$%lu\r\n",(unsigned long)strlen(dbuf)-2);
if (fwrite(buf,strlen(buf),1,fp) == 0) return 0;
if (fwrite(dbuf,strlen(dbuf),1,fp) == 0) return 0;
return 1;
}
/* Write a long value in bulk format $<count>\r\n<payload>\r\n */
int fwriteBulkLongLong(FILE *fp, long long l) {
char bbuf[128], lbuf[128];
unsigned int blen, llen;
llen = ll2string(lbuf,32,l);
blen = snprintf(bbuf,sizeof(bbuf),"$%u\r\n%s\r\n",llen,lbuf);
if (fwrite(bbuf,blen,1,fp) == 0) return 0;
return 1;
}
/* Delegate writing an object to writing a bulk string or bulk long long. */
int fwriteBulkObject(FILE *fp, robj *obj) {
/* Avoid using getDecodedObject to help copy-on-write (we are often
* in a child process when this function is called). */
if (obj->encoding == REDIS_ENCODING_INT) {
return fwriteBulkLongLong(fp,(long)obj->ptr);
} else if (obj->encoding == REDIS_ENCODING_RAW) {
return fwriteBulkString(fp,obj->ptr,sdslen(obj->ptr));
} else {
redisPanic("Unknown string encoding");
}
}
/* Write a sequence of commands able to fully rebuild the dataset into
* "filename". Used both by REWRITEAOF and BGREWRITEAOF. */
int rewriteAppendOnlyFile(char *filename) {