Ported to Windows MSVC 2012

1 files changed, 48 insertions, 0 deletions

diff --git a/config.h.cmake b/config.h.cmake
index 2bd97c11..2744598f 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -102,6 +102,18 @@
 /* Define to 1 if you have the `_open' function. */
 #cmakedefine HAVE__OPEN 1
 
+/* Define to 1 if you have the `read' function. */
+#cmakedefine HAVE_READ 1
+
+/* Define to 1 if you have the `_read' function. */
+#cmakedefine HAVE__READ 1
+
+/* Define to 1 if you have the `write' function. */
+#cmakedefine HAVE_WRITE 1
+
+/* Define to 1 if you have the `_write' function. */
+#cmakedefine HAVE__WRITE 1
+
 /* Define to 1 if you have the <sys/endian.h> header file. */
 #cmakedefine HAVE_SYS_ENDIAN_H 1
 
@@ -330,6 +342,42 @@ typedef int pid_t;
 #include <fcntl.h>
 #endif
 
+/* read - system function to read from a file descriptor */
+#if defined(HAVE__READ)
+#include <io.h>
+#define read _read
+#else
+#if !defined(HAVE_READ)
+#error "No read from file descriptor system function available"
+#else
+#if defined(HAVE_UNISTD_H)
+#include <unistd.h>
+#endif
+#endif
+#endif
+
+/* write - system function to write to a file descriptor */
+#if defined(HAVE__WRITE)
+#include <io.h>
+#define write _write
+#else
+#if !defined(HAVE_WRITE)
+#error "No write to file descriptor system function available"
+#else
+#if defined(HAVE_UNISTD_H)
+#include <unistd.h>
+#endif
+#endif
+#endif
+
+#if defined(_MSC_VER)
+typedef int IO_SIZE_T;
+typedef unsigned int IO_SSIZE_T;
+#else
+typedef size_t IO_SIZE_T;
+typedef ssize_t IO_SSIZE_T;
+#endif
+
 #if defined(_MSC_VER)
 #if !defined(F_OK) /* file exists */
 #define F_OK 0