diff options
Diffstat (limited to 'erts/emulator/drivers/common/efile_drv.c')
| -rw-r--r-- | erts/emulator/drivers/common/efile_drv.c | 31 |
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; + } + } /* |