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-rw-r--r--erts/emulator/drivers/common/efile_drv.c23
-rw-r--r--erts/emulator/drivers/common/erl_efile.h1
-rw-r--r--erts/emulator/drivers/common/ram_file_drv.c8
3 files changed, 32 insertions, 0 deletions
diff --git a/erts/emulator/drivers/common/efile_drv.c b/erts/emulator/drivers/common/efile_drv.c
index d2b916000e..b64d27de68 100644
--- a/erts/emulator/drivers/common/efile_drv.c
+++ b/erts/emulator/drivers/common/efile_drv.c
@@ -53,6 +53,7 @@
#define FILE_IPREAD 27
#define FILE_ALTNAME 28
#define FILE_READ_LINE 29
+#define FILE_FDATASYNC 30
/* Return codes */
@@ -883,6 +884,15 @@ static void invoke_chdir(void *data)
invoke_name(data, efile_chdir);
}
+static void invoke_fdatasync(void *data)
+{
+ struct t_data *d = (struct t_data *) data;
+ int fd = (int) d->fd;
+
+ d->again = 0;
+ d->result_ok = efile_fdatasync(&d->errInfo, fd);
+}
+
static void invoke_fsync(void *data)
{
struct t_data *d = (struct t_data *) data;
@@ -1919,6 +1929,7 @@ file_async_ready(ErlDrvData e, ErlDrvThreadData data)
case FILE_RMDIR:
case FILE_CHDIR:
case FILE_DELETE:
+ case FILE_FDATASYNC:
case FILE_FSYNC:
case FILE_TRUNCATE:
case FILE_LINK:
@@ -2209,6 +2220,18 @@ file_output(ErlDrvData e, char* buf, int count)
goto done;
}
+ case FILE_FDATASYNC:
+ {
+ d = EF_SAFE_ALLOC(sizeof(struct t_data));
+
+ d->fd = fd;
+ d->command = command;
+ d->invoke = invoke_fdatasync;
+ d->free = free_data;
+ d->level = 2;
+ goto done;
+ }
+
case FILE_FSYNC:
{
d = EF_SAFE_ALLOC(sizeof(struct t_data));
diff --git a/erts/emulator/drivers/common/erl_efile.h b/erts/emulator/drivers/common/erl_efile.h
index 9aa941e550..6821a0e2ee 100644
--- a/erts/emulator/drivers/common/erl_efile.h
+++ b/erts/emulator/drivers/common/erl_efile.h
@@ -126,6 +126,7 @@ int efile_readdir(Efile_error* errInfo, char* name,
int efile_openfile(Efile_error* errInfo, char* name, int flags,
int* pfd, Sint64* pSize);
void efile_closefile(int fd);
+int efile_fdatasync(Efile_error* errInfo, int fd);
int efile_fsync(Efile_error* errInfo, int fd);
int efile_fileinfo(Efile_error* errInfo, Efile_info* pInfo,
char *name, int info_for_link);
diff --git a/erts/emulator/drivers/common/ram_file_drv.c b/erts/emulator/drivers/common/ram_file_drv.c
index 4a39a156e6..d4e547ade6 100644
--- a/erts/emulator/drivers/common/ram_file_drv.c
+++ b/erts/emulator/drivers/common/ram_file_drv.c
@@ -35,6 +35,7 @@
#define RAM_FILE_TRUNCATE 14
#define RAM_FILE_PREAD 17
#define RAM_FILE_PWRITE 18
+#define RAM_FILE_FDATASYNC 19
/* other operations */
#define RAM_FILE_GET 30
@@ -558,6 +559,13 @@ static void rfile_command(ErlDrvData e, char* buf, int count)
numeric_reply(f, 0); /* 0 is not used */
break;
+ case RAM_FILE_FDATASYNC:
+ if (f->flags == 0)
+ error_reply(f, EBADF);
+ else
+ reply(f, 1, 0);
+ break;
+
case RAM_FILE_FSYNC:
if (f->flags == 0)
error_reply(f, EBADF);