Return to blob.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / libaitrpc / src

added code

    1: #include "global.h"
    2: 
    3: 
    4: /*
    5:  * rpc_srv_blobMap() Map blob to memory region 
    6:  * @srv = RPC Server instance
    7:  * @blob = Map to this BLOB element
    8:  * return: -1 error or 0 ok
    9:  */
   10: inline int
   11: rpc_srv_blobMap(rpc_srv_t * __restrict srv, rpc_blob_t * __restrict blob)
   12: {
   13: 	int f;
   14: 	struct stat sb;
   15: 	char szFName[MAXPATHLEN];
   16: 
   17: 	if (!blob) {
   18: 		rpc_SetErr(EINVAL, "Error:: invalid arguments ...\n");
   19: 		return -1;
   20: 	}
   21: 
   22: 	memset(szFName, 0, MAXPATHLEN);
   23: 	snprintf(szFName, MAXPATHLEN, BLOB_FILE, srv->srv_blob.dir, blob->blob_var);
   24: 	f = open(szFName, O_RDONLY);
   25: 	if (f == -1) {
   26: 		LOGERR;
   27: 		return -1;
   28: 	}
   29: 	if (fstat(f, &sb) == -1) {
   30: 		LOGERR;
   31: 		close(f);
   32: 		return -1;
   33: 	}
   34: 
   35: 	blob->blob_data = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, f, 0);
   36: 	if (blob->blob_data == MAP_FAILED) {
   37: 		LOGERR;
   38: 		close(f);
   39: 		blob->blob_data = NULL;
   40: 		return -1;
   41: 	} else {
   42: 		blob->blob_len = sb.st_size;
   43: 		close(f);
   44: 	}
   45: 
   46: 	return 0;
   47: }
   48: 
   49: /*
   50:  * rpc_srv_blobUnmap() Unmap blob memory region 
   51:  * @blob = Mapped BLOB element
   52:  * return: none
   53:  */
   54: inline void
   55: rpc_srv_blobUnmap(rpc_blob_t * __restrict blob)
   56: {
   57: 	if (!blob || !blob->blob_data)
   58: 		rpc_SetErr(EINVAL, "Error:: invalid arguments ...\n");
   59: 	else {
   60: 		munmap(blob->blob_data, blob->blob_len);
   61: 		blob->blob_data = NULL;
   62: 		blob->blob_len = 0;
   63: 	}
   64: }
   65: 
   66: /*
   67:  * rpc_srv_blobFree() Free blob from disk & memory
   68:  * @srv = RPC Server instance
   69:  * @blob = Mapped BLOB element
   70:  * return: -1 error or 0 ok
   71:  */
   72: inline int
   73: rpc_srv_blobFree(rpc_srv_t * __restrict srv, rpc_blob_t * __restrict blob)
   74: {
   75: 	char szFName[MAXPATHLEN];
   76: 
   77: 	if (!blob) {
   78: 		rpc_SetErr(EINVAL, "Error:: invalid arguments ...\n");
   79: 		return -1;
   80: 	}
   81: 
   82: 	if (blob->blob_data)
   83: 		rpc_srv_blobUnmap(blob);
   84: 
   85: 	memset(szFName, 0, MAXPATHLEN);
   86: 	snprintf(szFName, MAXPATHLEN, BLOB_FILE, srv->srv_blob.dir, blob->blob_var);
   87: 	if (remove(szFName) == -1) {
   88: 		LOGERR;
   89: 		return -1;
   90: 	}
   91: 
   92: 	return 0;
   93: }
   94: 
   95: // ------------------------------------------------------------
   96: 
   97: /*
   98:  * rpc_srv_sendBLOB() Send mapped BLOB to client
   99:  * @cli = Client instance
  100:  * @blob = Mapped BLOB element
  101:  * return: -1 error, 0 ok
  102:  */
  103: int
  104: rpc_srv_sendBLOB(rpc_cli_t * __restrict cli, rpc_blob_t * __restrict blob)
  105: {
  106: 	int ret, len;
  107: 	uint8_t *pos;
  108: 
  109: 	if (!cli || !blob || !blob->blob_data) {
  110: 		rpc_SetErr(EINVAL, "Error:: invalid arguments ...\n");
  111: 		return -1;
  112: 	}
  113: 
  114: 	for (ret = blob->blob_len, pos = blob->blob_data; ret > 0; ret -= len, pos += len)
  115: 		if ((len = send(cli->cli_sock, pos, ret > BLOBSIZ ? BLOBSIZ : ret, 0)) == -1) {
  116: 			LOGERR;
  117: 			return -1;
  118: 		}
  119: 
  120: 	return ret;
  121: }
  122: 
  123: /*
  124:  * rpc_srv_recvBLOB() Receive BLOB from client
  125:  * @cli = Client instance
  126:  * return: -1 error, 0 ok
  127:  */
  128: int
  129: rpc_srv_recvBLOB(rpc_cli_t * __restrict cli)
  130: {
  131: 	int ret, len;
  132: 	uint8_t *pos;
  133: 	rpc_srv_t *s;
  134: 
  135: 	if (!cli || !cli->cli_parent) {
  136: 		rpc_SetErr(EINVAL, "Error:: invalid arguments ...\n");
  137: 		return -1;
  138: 	} else
  139: 		s = cli->cli_parent;
  140: 
  141: 
  142: 	return ret;
  143: }