--- libaitrpc/src/blob.c 2010/07/08 07:32:53 1.1.2.11 +++ libaitrpc/src/blob.c 2011/05/02 23:07:55 1.1.2.16 @@ -1,3 +1,48 @@ +/************************************************************************* +* (C) 2010 AITNET ltd - Sofia/Bulgaria - +* by Michael Pounov +* +* $Author: misho $ +* $Id: blob.c,v 1.1.2.16 2011/05/02 23:07:55 misho Exp $ +* +************************************************************************** +The ELWIX and AITNET software is distributed under the following +terms: + +All of the documentation and software included in the ELWIX and AITNET +Releases is copyrighted by ELWIX - Sofia/Bulgaria + +Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 + by Michael Pounov . All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. +3. All advertising materials mentioning features or use of this software + must display the following acknowledgement: +This product includes software developed by Michael Pounov +ELWIX - Embedded LightWeight unIX and its contributors. +4. Neither the name of AITNET nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. +*/ #include "global.h" @@ -16,7 +61,6 @@ rpc_srv_blobCreate(rpc_srv_t * __restrict srv, int len u_int rnd; srandomdev(); - srandom(getpid() ^ time(NULL)); again: rnd = random() % UINT_MAX; @@ -71,7 +115,6 @@ inline int rpc_srv_blobMap(rpc_srv_t * __restrict srv, rpc_blob_t * __restrict blob) { int f; - struct stat sb; char szFName[MAXPATHLEN]; if (!blob) { @@ -86,23 +129,17 @@ rpc_srv_blobMap(rpc_srv_t * __restrict srv, rpc_blob_t LOGERR; return -1; } - if (fstat(f, &sb) == -1) { - LOGERR; - close(f); - return -1; - } - blob->blob_data = mmap(NULL, sb.st_size, PROT_READ | PROT_WRITE, MAP_SHARED, f, 0); + blob->blob_data = mmap(NULL, blob->blob_len, PROT_READ | PROT_WRITE, MAP_SHARED, f, 0); if (blob->blob_data == MAP_FAILED) { LOGERR; close(f); blob->blob_data = NULL; return -1; } else { - blob->blob_len = sb.st_size; close(f); - madvise(blob->blob_data, sb.st_size, MADV_SEQUENTIAL); + madvise(blob->blob_data, blob->blob_len, MADV_SEQUENTIAL); } return 0; @@ -121,7 +158,6 @@ rpc_srv_blobUnmap(rpc_blob_t * __restrict blob) else { munmap(blob->blob_data, blob->blob_len); blob->blob_data = NULL; - blob->blob_len = 0; } } @@ -274,7 +310,7 @@ rpc_cli_sendBLOB(rpc_cli_t * __restrict cli, rpc_val_t } if (hdr.hdr_cmd != error) { if (hdr.hdr_len != var->val_len) { - rpc_SetErr(EBADMSG, "Error:: Bad return length packet ...\n"); + rpc_SetErr(ECANCELED, "Error:: Bad return length packet ...\n"); return -1; } @@ -342,7 +378,6 @@ rpc_cli_recvBLOB(rpc_cli_t * __restrict cli, rpc_val_t return -1; } } - printf("get all bytes ret=%d *data=%s", ret, *data); FD_ZERO(&fds); FD_SET(cli->cli_sock, &fds); @@ -366,7 +401,7 @@ rpc_cli_recvBLOB(rpc_cli_t * __restrict cli, rpc_val_t } if (hdr.hdr_cmd != error) { if (hdr.hdr_len != var->val_len) { - rpc_SetErr(EBADMSG, "Error:: Bad return length packet ...\n"); + rpc_SetErr(ECANCELED, "Error:: Bad return length packet ...\n"); free(*data); *data = NULL; return -1; @@ -374,4 +409,68 @@ rpc_cli_recvBLOB(rpc_cli_t * __restrict cli, rpc_val_t } return hdr.hdr_cmd == error; +} + +/* + * rpc_cli_delBLOB() Delete BLOB from server + * @cli = Client instance + * @var = BLOB variable + * return: -1 error, 0 ok, 1 remote error + */ +int +rpc_cli_delBLOB(rpc_cli_t * __restrict cli, rpc_val_t * __restrict var) +{ + struct tagBLOBHdr hdr; + fd_set fds; + struct timeval tv = { DEF_RPC_TIMEOUT, 0 }; + + if (!cli || !var) { + rpc_SetErr(EINVAL, "Error:: invalid arguments ...\n"); + return -1; + } + + memcpy(&hdr.hdr_session, cli->cli_parent, sizeof(rpc_sess_t)); + hdr.hdr_cmd = unset; + hdr.hdr_var = (uint32_t) RPC_GET_BLOB(var); + hdr.hdr_ret = 0; + hdr.hdr_len = 0; + if (send(cli->cli_sock, &hdr, sizeof hdr, 0) == -1) { + LOGERR; + return -1; + } + + FD_ZERO(&fds); + FD_SET(cli->cli_sock, &fds); + switch (select(cli->cli_sock + 1, &fds, NULL, NULL, &tv)) { + case -1: + LOGERR; + return -1; + case 0: + rpc_SetErr(ETIMEDOUT, "Error:: Timeout reached! Server not responde ...\n"); + return -1; + } + if (recv(cli->cli_sock, &hdr, sizeof hdr, 0) == -1) { + LOGERR; + return -1; + } + + return hdr.hdr_cmd == error; +} + +/* + * rpc_cli_getBLOB() Receive BLOB from server and Delete after that + * @cli = Client instance + * @var = BLOB variable + * @data = BLOB data, must be free after use! + * return: -1 error, 0 ok, 1 remote error + */ +inline int +rpc_cli_getBLOB(rpc_cli_t * __restrict cli, rpc_val_t * __restrict var, void ** data) +{ + int ret; + + ret = rpc_cli_recvBLOB(cli, var, data); + ret |= rpc_cli_delBLOB(cli, var) > 0 ? 2 : 0; + + return ret; }