From 1dd1b34194573661b10015fbc60d6910dbea8fcc Mon Sep 17 00:00:00 2001 From: Andrew Clayton Date: Thu, 14 Sep 2023 21:58:58 +0100 Subject: libunit-wasm: Add a luw_req_buf_copy() function This is analogous to luw_req_buf_append() but rather than appending request data to the buffer it simply overwrites what's currently there. This is needed to take advantage of the new ability to receive >4GiB requests/payloads. On a new request you would call luw_init_ctx(), luw_set_req_buf() & open(2). On subsequent calls to the request_handler (for this same HTTP request/upload) you would call this new function and then write out the data to a file. E.g /* In the request_handler */ if (total_bytes_wrote == 0) { luw_init_ctx(&ctx, addr, 0); luw_set_req_buf(&ctx, &request_buf, LUW_SRB_NONE); fd = open("/var/tmp/large-file.dat", O_CREAT|O_TRUNC|O_WRONLY, 0666); } else { luw_req_buf_copy(&ctx, addr); } buf = luw_get_http_content(&ctx); bytes_wrote = write(fd, buf, luw_get_http_content_sent(&ctx)); total_bytes_wrote += bytes_wrote; if (total_bytes_wrote == luw_get_http_content_len(&ctx)) { close(fd); total_bytes_wrote = 0; luw_http_response_end(); } Signed-off-by: Andrew Clayton --- src/c/include/unit/unit-wasm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'src/c/include/unit/unit-wasm.h') diff --git a/src/c/include/unit/unit-wasm.h b/src/c/include/unit/unit-wasm.h index f698c97..48079b1 100644 --- a/src/c/include/unit/unit-wasm.h +++ b/src/c/include/unit/unit-wasm.h @@ -238,6 +238,7 @@ extern size_t luw_get_response_data_size(const luw_ctx_t *ctx); extern int luw_mem_writep(luw_ctx_t *ctx, const char *fmt, ...); extern size_t luw_mem_writep_data(luw_ctx_t *ctx, const u8 *src, size_t size); extern void luw_req_buf_append(luw_ctx_t *ctx, const u8 *src); +extern void luw_req_buf_copy(luw_ctx_t *ctx, const u8 *src); extern size_t luw_mem_fill_buf_from_req(luw_ctx_t *ctx, size_t from); extern void luw_mem_reset(luw_ctx_t *ctx); extern void luw_http_set_response_status(luw_http_status_t status); -- cgit