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path: root/erts/emulator/drivers/common/efile_drv.c
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Diffstat (limited to 'erts/emulator/drivers/common/efile_drv.c')
-rw-r--r--erts/emulator/drivers/common/efile_drv.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/erts/emulator/drivers/common/efile_drv.c b/erts/emulator/drivers/common/efile_drv.c
index 912f5d3d8b..2c38e7256a 100644
--- a/erts/emulator/drivers/common/efile_drv.c
+++ b/erts/emulator/drivers/common/efile_drv.c
@@ -56,6 +56,7 @@
#define FILE_FDATASYNC 30
#define FILE_FADVISE 31
#define FILE_SENDFILE 32
+#define FILE_FALLOCATE 33
/* Return codes */
@@ -503,6 +504,10 @@ struct t_data
Uint64 written;
} sendfile;
#endif /* HAVE_SENDFILE */
+ struct {
+ Sint64 offset;
+ Sint64 length;
+ } fallocate;
} c;
char b[1];
};
@@ -1953,6 +1958,17 @@ static int flush_sendfile(file_descriptor *desc,void *_) {
#endif /* HAVE_SENDFILE */
+static void invoke_fallocate(void *data)
+{
+ struct t_data *d = (struct t_data *) data;
+ int fd = (int) d->fd;
+ Sint64 offset = d->c.fallocate.offset;
+ Sint64 length = d->c.fallocate.length;
+
+ d->again = 0;
+ d->result_ok = efile_fallocate(&d->errInfo, fd, offset, length);
+}
+
static void free_readdir(void *data)
{
struct t_data *d = (struct t_data *) data;
@@ -2348,6 +2364,7 @@ file_async_ready(ErlDrvData e, ErlDrvThreadData data)
case FILE_RENAME:
case FILE_WRITE_INFO:
case FILE_FADVISE:
+ case FILE_FALLOCATE:
reply(desc, d->result_ok, &d->errInfo);
free_data(data);
break;
@@ -2958,6 +2975,20 @@ file_output(ErlDrvData e, char* buf, ErlDrvSizeT count)
goto done;
}
+ case FILE_FALLOCATE:
+ {
+ d = EF_SAFE_ALLOC(sizeof(struct t_data));
+
+ d->fd = fd;
+ d->command = command;
+ d->invoke = invoke_fallocate;
+ d->free = free_data;
+ d->level = 2;
+ d->c.fallocate.offset = get_int64((uchar*) buf);
+ d->c.fallocate.length = get_int64(((uchar*) buf) + sizeof(Sint64));
+ goto done;
+ }
+
}
/*