diff options
Diffstat (limited to 'src/graph/viewman/readView.c')
-rw-r--r-- | src/graph/viewman/readView.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/graph/viewman/readView.c b/src/graph/viewman/readView.c new file mode 100644 index 00000000..ba65b435 --- /dev/null +++ b/src/graph/viewman/readView.c @@ -0,0 +1,66 @@ +/* + Copyright (C) 1991-2002, The Numerical ALgorithms Group Ltd. + All rights reserved. + Copyright (C) 2007-2008, Gabriel Dos Reis. + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + - Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + - 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. + + - Neither the name of The Numerical ALgorithms Group Ltd. 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 THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER + 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. +*/ + +#define _READVIEW_C +#include "axiom-c-macros.h" + +#include <unistd.h> +#include <stdio.h> +#include <errno.h> + +#include "viewman.h" + +#include "cleanup.H1" + +int +#ifdef _NO_PROTO +readViewport (viewPort,info,size) + viewManager *viewPort; + void *info; + int size; +#else +readViewport (viewManager *viewPort,void *info,int size) +#endif +{ + + int canRead; + +again: + if ((canRead=read(viewPort->viewIn,info,size)) > 0) return(canRead); + if (errno==EINTR || errno==EAGAIN) goto again; + return(-1); +} + + |