1.1 --- a/src/os/linux/vm/os_linux.cpp Thu Dec 16 12:56:51 2010 -0800
1.2 +++ b/src/os/linux/vm/os_linux.cpp Thu Dec 16 20:57:03 2010 -0500
1.3 @@ -115,6 +115,7 @@
1.4 # include <link.h>
1.5 # include <stdint.h>
1.6 # include <inttypes.h>
1.7 +# include <sys/ioctl.h>
1.8
1.9 #define MAX_PATH (2 * K)
1.10
1.11 @@ -4433,6 +4434,15 @@
1.12 return 1;
1.13 }
1.14
1.15 +int os::socket_available(int fd, jint *pbytes) {
1.16 + // Linux doc says EINTR not returned, unlike Solaris
1.17 + int ret = ::ioctl(fd, FIONREAD, pbytes);
1.18 +
1.19 + //%% note ioctl can return 0 when successful, JVM_SocketAvailable
1.20 + // is expected to return 0 on failure and 1 on success to the jdk.
1.21 + return (ret < 0) ? 0 : 1;
1.22 +}
1.23 +
1.24 // Map a block of memory.
1.25 char* os::map_memory(int fd, const char* file_name, size_t file_offset,
1.26 char *addr, size_t bytes, bool read_only,
