diff options
Diffstat (limited to 'ghc/runtime/io/writeFile.lc')
-rw-r--r-- | ghc/runtime/io/writeFile.lc | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/ghc/runtime/io/writeFile.lc b/ghc/runtime/io/writeFile.lc new file mode 100644 index 0000000000..6981bf128c --- /dev/null +++ b/ghc/runtime/io/writeFile.lc @@ -0,0 +1,38 @@ +% +% (c) The GRASP/AQUA Project, Glasgow University, 1994 +% +\subsection[writeFile.lc]{hPutStr Runtime Support} + +\begin{code} + +#include "rtsdefs.h" +#include "stgio.h" + +StgInt +writeFile(buf, fp, bytes) +StgAddr buf; +StgAddr fp; +StgInt bytes; +{ + int count; + char *p = (char *) buf; + + if (bytes == 0) + return 0; + + /* Disallow short writes */ + while ((count = fwrite(p, 1, bytes, (FILE *) fp)) < bytes) { + if (errno != EINTR) { + cvtErrno(); + stdErrno(); + return -1; + } + bytes -= count; + p += count; + clearerr((FILE *) fp); + } + + return 0; +} + +\end{code} |