static ngx_chain_t *
ngx_http_tfs_create_action_message(ngx_http_tfs_t *t, ngx_str_t *file_path_s,
ngx_str_t *file_path_d)
{
size_t size;
u_char *p;
ngx_buf_t *b;
ngx_chain_t *cl;
ngx_http_tfs_restful_ctx_t *r_ctx;
ngx_http_tfs_ms_base_msg_header_t *req;
r_ctx = &t->r_ctx;
size = sizeof(ngx_http_tfs_ms_base_msg_header_t) +
/* file path */
file_path_s->len +
/* version */
sizeof(uint64_t) +
/* new file path len */
sizeof(uint32_t) +
/* '/0' */
1 +
/* action */
sizeof(uint8_t);
if (file_path_d != NULL && file_path_d->data != NULL) {
size += file_path_d->len + 1;
}
b = ngx_create_temp_buf(t->pool, size);
if (b == NULL) {
return NULL;
}
req = (ngx_http_tfs_ms_base_msg_header_t *) b->pos;
req->header.type = NGX_HTTP_TFS_FILEPATH_ACTION_MESSAGE;
req->header.len = size - sizeof(ngx_http_tfs_header_t);
req->header.flag = NGX_HTTP_TFS_PACKET_FLAG;
req->header.version = NGX_HTTP_TFS_PACKET_VERSION;
req->header.id = ngx_http_tfs_generate_packet_id();
req->app_id = r_ctx->app_id;
req->user_id = r_ctx->user_id;
req->file_len = file_path_s->len + 1;
p = ngx_cpymem(req->file_path_s, file_path_s->data, file_path_s->len + 1);
*((uint64_t *)p) = t->loc_conf->meta_server_table.version;
p += sizeof(uint64_t);
if (file_path_d != NULL && file_path_d->data != NULL) {
/* new file path */
*((uint32_t *)p) = file_path_d->len + 1;
p += sizeof(uint32_t);
p = ngx_cpymem(p, file_path_d->data, file_path_d->len + 1);
} else {
*((uint32_t *)p) = 0;
p += sizeof(uint32_t);
}
/* start body */
*p = r_ctx->action.code;
req->header.crc = ngx_http_tfs_crc(NGX_HTTP_TFS_PACKET_FLAG,
(const char *) (&req->header + 1),
req->header.len);
b->last += size;
cl = ngx_alloc_chain_link(t->pool);
if (cl == NULL) {
return NULL;
}
cl->buf = b;
cl->next = NULL;
return cl;
}
static ngx_chain_t *
ngx_http_tfs_create_write_meta_message(ngx_http_tfs_t *t)
{
u_char *p;
size_t size, frag_size;
ngx_buf_t *b;
ngx_int_t need_write_frag_count, i;
ngx_chain_t *cl;
ngx_http_tfs_restful_ctx_t *r_ctx;
ngx_http_tfs_segment_data_t *segment_data;
ngx_http_tfs_meta_frag_info_t *wfi;
ngx_http_tfs_ms_base_msg_header_t *req;
r_ctx = &t->r_ctx;
need_write_frag_count =
t->file.segment_index - t->file.last_write_segment_index;
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, t->log, 0 ,
"last_write_segment_index: %uD, segment_index: %uD",
t->file.last_write_segment_index, t->file.segment_index);
frag_size = sizeof(ngx_http_tfs_meta_frag_info_t) +
sizeof(ngx_http_tfs_meta_frag_meta_info_t) * need_write_frag_count;
size = sizeof(ngx_http_tfs_ms_base_msg_header_t) +
r_ctx->file_path_s.len + 1 +
/* version */
sizeof(uint64_t) +
frag_size;
b = ngx_create_temp_buf(t->pool, size);
if (b == NULL) {
return NULL;
}
req = (ngx_http_tfs_ms_base_msg_header_t *) b->pos;
req->header.type = NGX_HTTP_TFS_WRITE_FILEPATH_MESSAGE;
req->header.flag = NGX_HTTP_TFS_PACKET_FLAG;
req->header.version = NGX_HTTP_TFS_PACKET_VERSION;
req->header.id = ngx_http_tfs_generate_packet_id();
req->app_id = r_ctx->app_id;
req->user_id = r_ctx->user_id;
req->file_len = r_ctx->file_path_s.len + 1;
p = ngx_cpymem(req->file_path_s, r_ctx->file_path_s.data,
r_ctx->file_path_s.len + 1);
*((uint64_t *)p) = t->loc_conf->meta_server_table.version;
wfi = (ngx_http_tfs_meta_frag_info_t*)(p + sizeof(uint64_t));
wfi->cluster_id = t->file.cluster_id;
wfi->frag_count = need_write_frag_count;
segment_data = &t->file.segment_data[t->file.last_write_segment_index];
for (i = 0; i < need_write_frag_count; i++) {
#if (NGX_DEBUG)
ngx_http_tfs_dump_segment_data(segment_data, t->log);
#endif
wfi->frag_meta[i].block_id = segment_data->segment_info.block_id;
wfi->frag_meta[i].file_id = segment_data->segment_info.file_id;
wfi->frag_meta[i].offset = segment_data->segment_info.offset;
wfi->frag_meta[i].size = segment_data->segment_info.size;
segment_data++;
}
t->file.last_write_segment_index += need_write_frag_count;
b->last += size;
req->header.len = size - sizeof(ngx_http_tfs_header_t);
req->header.crc = ngx_http_tfs_crc(NGX_HTTP_TFS_PACKET_FLAG,
(const char *) (&req->header + 1),
size - sizeof(ngx_http_tfs_header_t));
cl = ngx_alloc_chain_link(t->pool);
if (cl == NULL) {
return NULL;
}
cl->buf = b;
cl->next = NULL;
return cl;
}
static ngx_chain_t *
ngx_http_tfs_create_read_meta_message(ngx_http_tfs_t *t, int64_t req_offset,
uint64_t req_size)
{
u_char *p;
size_t size, max_frag_count, req_frag_count;
ngx_buf_t *b;
ngx_chain_t *cl;
ngx_http_tfs_restful_ctx_t *r_ctx;
ngx_http_tfs_ms_base_msg_header_t *req;
r_ctx = &t->r_ctx;
size = sizeof(ngx_http_tfs_ms_base_msg_header_t) +
/* file */
r_ctx->file_path_s.len +
/* \0 */
1 +
/* version */
sizeof(uint64_t) +
/* offset */
sizeof(uint64_t) +
/* size */
sizeof(uint64_t);
b = ngx_create_temp_buf(t->pool, size);
if (b == NULL) {
return NULL;
}
req = (ngx_http_tfs_ms_base_msg_header_t *) b->pos;
req->header.type = NGX_HTTP_TFS_READ_FILEPATH_MESSAGE;
req->header.len = size - sizeof(ngx_http_tfs_header_t);
req->header.flag = NGX_HTTP_TFS_PACKET_FLAG;
req->header.version = NGX_HTTP_TFS_PACKET_VERSION;
req->header.id = ngx_http_tfs_generate_packet_id();
req->app_id = r_ctx->app_id;
req->user_id = r_ctx->user_id;
req->file_len = r_ctx->file_path_s.len + 1;
p = ngx_cpymem(req->file_path_s, r_ctx->file_path_s.data,
r_ctx->file_path_s.len + 1);
*((uint64_t *)p) = t->loc_conf->meta_server_table.version;
p += sizeof(uint64_t);
*((uint64_t *) p) = req_offset;
p += sizeof(uint64_t);
max_frag_count = (t->main_conf->body_buffer_size
- sizeof(ngx_http_tfs_ms_read_response_t))
/ sizeof(ngx_http_tfs_meta_frag_meta_info_t);
req_frag_count = req_size / (NGX_HTTP_TFS_MAX_FRAGMENT_SIZE);
ngx_log_error(NGX_LOG_INFO, t->log, 0 ,
"max_frag_count: %uz, req_frag_count: %uz, data size: %uz",
max_frag_count, req_frag_count, req_size);
if (req_frag_count > max_frag_count) {
*((uint64_t *) p) =
(max_frag_count - 1) * NGX_HTTP_TFS_MAX_FRAGMENT_SIZE;
t->has_split_frag = NGX_HTTP_TFS_YES;
} else {
*((uint64_t *) p) = req_size;
t->has_split_frag = NGX_HTTP_TFS_NO;
}
req->header.crc = ngx_http_tfs_crc(NGX_HTTP_TFS_PACKET_FLAG,
(const char *) (&req->header + 1),
req->header.len);
b->last += size;
cl = ngx_alloc_chain_link(t->pool);
if (cl == NULL) {
return NULL;
}
cl->buf = b;
cl->next = NULL;
return cl;
}
ngx_chain_t *
ngx_http_tfs_create_keepalive_message(ngx_http_tfs_t *t)
{
u_char *p;
ssize_t size, base_size;
ngx_buf_t *b;
ngx_queue_t *q, *queue;
ngx_chain_t *cl, **ll;
ngx_http_tfs_rc_ctx_t *rc_ctx;
ngx_http_tfs_header_t *header;
ngx_http_tfs_rcs_info_t *rc_info;
rc_ctx = t->main_conf->rc_ctx;
ll = NULL;
cl = NULL;
base_size = sizeof(ngx_http_tfs_header_t)
/* session id and client version len */
+ sizeof(uint32_t) * 2
/* client version */
+ sizeof(NGX_HTTP_TFS_CLIENT_VERSION)
/* cache_size cache_time modify_time */
+ sizeof(uint64_t) * 3
/* is_logout */
+ sizeof(uint8_t)
/* stat info */
+ sizeof(uint32_t)
+ sizeof(uint64_t)
/* last_report_time */
+ sizeof(uint64_t);
queue = &rc_ctx->sh->kp_queue;
if (ngx_queue_empty(queue)) {
ngx_shmtx_unlock(&rc_ctx->shpool->mutex);
return NULL;
}
q = t->curr_ka_queue;
if (q == NULL) {
q = ngx_queue_head(queue);
t->curr_ka_queue = q;
}
rc_info = ngx_queue_data(q, ngx_http_tfs_rcs_info_t, kp_queue);
ngx_log_error(NGX_LOG_INFO, t->log, 0,
"will do keepalive for appkey: %V", &rc_info->appkey);
size = base_size + rc_info->session_id.len + 1;
b = ngx_create_temp_buf(t->pool, size);
if (b == NULL) {
goto keepalive_create_error;
}
header = (ngx_http_tfs_header_t *) b->pos;
header->flag = NGX_HTTP_TFS_PACKET_FLAG;
header->len = size - sizeof(ngx_http_tfs_header_t);
header->type = NGX_HTTP_TFS_REQ_RC_KEEPALIVE_MESSAGE;
header->version = NGX_HTTP_TFS_PACKET_VERSION;
header->id = ngx_http_tfs_generate_packet_id();
p = (u_char *)(header + 1);
/* include '\0' */
*((uint32_t *) p) = rc_info->session_id.len + 1;
p += sizeof(uint32_t);
p = ngx_cpymem(p, rc_info->session_id.data, rc_info->session_id.len);
*p = '\0';
p += sizeof(uint8_t);
*((uint32_t *) p) = sizeof(NGX_HTTP_TFS_CLIENT_VERSION);
p += sizeof(uint32_t);
p = ngx_cpymem(p, NGX_HTTP_TFS_CLIENT_VERSION, sizeof(NGX_HTTP_TFS_CLIENT_VERSION));
ngx_memzero(p, sizeof(uint64_t) * 4 + sizeof(uint32_t) + sizeof(uint8_t));
/* cache_size cache_time */
p += sizeof(uint64_t) * 2;
*((uint64_t *) p) = rc_info->modify_time;
/* modify_time is_logout stat_info */
p += sizeof(uint64_t) * 3 + sizeof(uint32_t) + sizeof(uint8_t);
header->crc = ngx_http_tfs_crc(NGX_HTTP_TFS_PACKET_FLAG,
(const char *) (header + 1), header->len);
b->last += size;
if (ll == NULL) {
cl = ngx_alloc_chain_link(t->pool);
if (cl == NULL) {
goto keepalive_create_error;
}
cl->next = NULL;
ll = &cl->next;
cl->buf = b;
} else {
*ll = ngx_alloc_chain_link(t->pool);
if (*ll == NULL) {
goto keepalive_create_error;
}
(*ll)->next = NULL;
(*ll)->buf = b;
ll = &((*ll)->next);
}
return cl;
keepalive_create_error:
return NULL;
}
