diff options
Diffstat (limited to 'example/passthrough.c')
| -rw-r--r-- | example/passthrough.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/example/passthrough.c b/example/passthrough.c index b83c17f..da91930 100644 --- a/example/passthrough.c +++ b/example/passthrough.c @@ -29,6 +29,8 @@ #include <config.h> #endif +#define _GNU_SOURCE + #ifdef linux /* For pread()/pwrite()/utimensat() */ #define _XOPEN_SOURCE 700 @@ -445,6 +447,46 @@ static int xmp_removexattr(const char *path, const char *name) } #endif /* HAVE_SETXATTR */ +#ifdef HAVE_COPY_FILE_RANGE +static ssize_t xmp_copy_file_range(const char *path_in, + struct fuse_file_info *fi_in, + off_t offset_in, const char *path_out, + struct fuse_file_info *fi_out, + off_t offset_out, size_t len, int flags) +{ + int fd_in, fd_out; + ssize_t res; + + if(fi_in == NULL) + fd_in = open(path_in, O_RDONLY); + else + fd_in = fi_in->fh; + + if (fd_in == -1) + return -errno; + + if(fi_out == NULL) + fd_out = open(path_out, O_WRONLY); + else + fd_out = fi_out->fh; + + if (fd_out == -1) { + close(fd_in); + return -errno; + } + + res = copy_file_range(fd_in, &offset_in, fd_out, &offset_out, len, + flags); + if (res == -1) + res = -errno; + + close(fd_in); + close(fd_out); + + return res; +} +#endif + static struct fuse_operations xmp_oper = { .init = xmp_init, .getattr = xmp_getattr, @@ -480,6 +522,9 @@ static struct fuse_operations xmp_oper = { .listxattr = xmp_listxattr, .removexattr = xmp_removexattr, #endif +#ifdef HAVE_COPY_FILE_RANGE + .copy_file_range = xmp_copy_file_range, +#endif }; int main(int argc, char *argv[]) |