diff options
Diffstat (limited to 'src/amd/vulkan/radv_device.c')
| -rw-r--r-- | src/amd/vulkan/radv_device.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c index b02483bb949..38ff0eb740d 100644 --- a/src/amd/vulkan/radv_device.c +++ b/src/amd/vulkan/radv_device.c @@ -1994,6 +1994,45 @@ static int install_seccomp_filter() { return 0; } +/* Helper function with timeout support for reading from the pipe between + * processes used for secure compile. + */ +bool radv_sc_read(int fd, void *buf, size_t size, bool timeout) +{ + fd_set fds; + struct timeval tv; + + FD_ZERO(&fds); + FD_SET(fd, &fds); + + while (true) { + /* We can't rely on the value of tv after calling select() so + * we must reset it on each iteration of the loop. + */ + tv.tv_sec = 5; + tv.tv_usec = 0; + + int rval = select(fd + 1, &fds, NULL, NULL, timeout ? &tv : NULL); + + if (rval == -1) { + /* select error */ + return false; + } else if (rval) { + ssize_t bytes_read = read(fd, buf, size); + if (bytes_read < 0) + return false; + + buf += bytes_read; + size -= bytes_read; + if (size == 0) + return true; + } else { + /* select timeout */ + return false; + } + } +} + static void run_secure_compile_device(struct radv_device *device, unsigned process, int *fd_secure_input, int *fd_secure_output) { |