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aofChildWriteDiffData(): write as much as possible.

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antirez 2014-07-04 15:54:20 +02:00
parent 30c42f12b0
commit 62f9d34c56
1 changed files with 15 additions and 11 deletions
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26
src/aof.c
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@ -92,20 +92,24 @@ unsigned long aofRewriteBufferSize(void) {
* rewrite. We send pieces of our AOF differences buffer so that the final
* write when the child finishes the rewrite will be small. */
void aofChildWriteDiffData(aeEventLoop *el, int fd, void *privdata, int mask) {
listNode *ln = listFirst(server.aof_rewrite_buf_blocks);
aofrwblock *block = ln ? ln->value : NULL;
listNode *ln;
aofrwblock *block;
ssize_t nwritten;
if (server.aof_stop_sending_diff || !block) {
aeDeleteFileEvent(server.el,server.aof_pipe_write_data_to_child,
AE_WRITABLE);
return;
while(1) {
ln = listFirst(server.aof_rewrite_buf_blocks);
block = ln ? ln->value : NULL;
if (server.aof_stop_sending_diff || !block) {
aeDeleteFileEvent(server.el,server.aof_pipe_write_data_to_child,
AE_WRITABLE);
return;
}
nwritten = write(server.aof_pipe_write_data_to_child,block->buf,block->used);
if (nwritten <= 0) return;
memmove(block->buf,block->buf+nwritten,block->used-nwritten);
block->used -= nwritten;
if (block->used == 0) listDelNode(server.aof_rewrite_buf_blocks,ln);
}
nwritten = write(server.aof_pipe_write_data_to_child,block->buf,block->used);
if (nwritten <= 0) return;
memmove(block->buf,block->buf+nwritten,block->used-nwritten);
block->used -= nwritten;
if (block->used == 0) listDelNode(server.aof_rewrite_buf_blocks,ln);
}
/* Append data to the AOF rewrite buffer, allocating new blocks if needed. */