MLX, MLX-C: version bump (#18449)

Includes quantized matmul corruption fix, which impacts nvfp4 multimodal models (gemma4 vision towers). Deferring wiring up the new MLX-C thread-local stream/sync APIs for now.

.github/workflows/test.yaml

@@ -115,7 +115,7 @@ jobs:
             superbuild_args: '-DOLLAMA_LLAMA_BACKENDS=vulkan'
             expected_payload: lib/ollama/vulkan/libggml-vulkan.so
           - preset: 'MLX CUDA 13'
-            container: nvidia/cuda:13.0.0-devel-ubuntu22.04
+            container: nvidia/cuda:13.0.0-devel-ubuntu24.04
             extra-packages: libcudnn9-dev-cuda-13 libopenblas-dev liblapack-dev liblapacke-dev git curl
             superbuild_target: ollama-mlx-cuda_v13
             superbuild_dir: build/local-superbuild-mlx-cuda_v13

MLX_C_VERSION

@@ -1 +1 @@
-c74db5307cc8ce122f48d97ef951b30578674e7f
+ebc88f10caa1b625e6b581437a8dea6df8a70085

MLX_VERSION

@@ -1 +1 @@
-cbb4059d8c6652d1c2cce98c348a8a689eb275b8
+d9add9d11f3154111a4c85f267ec2fd307ecd18e

x/mlxrunner/mlx/generated.c

@@ -2404,6 +2404,15 @@ int (*mlx_random_uniform_)(
 mlx_stream (*mlx_stream_new_)(void) = NULL;
 mlx_stream (*mlx_stream_new_device_)(mlx_device dev) = NULL;
 mlx_stream (*mlx_stream_new_thread_unsafe_)(mlx_device dev) = NULL;
+mlx_stream_thread_local (*mlx_stream_thread_local_new_)(mlx_device dev) = NULL;
+int (*mlx_stream_thread_local_set_)(
+    mlx_stream_thread_local* tls,
+    const mlx_stream_thread_local src) = NULL;
+int (*mlx_stream_thread_local_free_)(mlx_stream_thread_local tls) = NULL;
+int (*mlx_stream_from_thread_local_)(
+    mlx_stream* res,
+    const mlx_stream_thread_local tls) = NULL;
+int (*mlx_get_streams_)(mlx_vector_stream* res) = NULL;
 int (*mlx_stream_set_)(mlx_stream* stream, const mlx_stream src) = NULL;
 int (*mlx_stream_free_)(mlx_stream stream) = NULL;
 int (*mlx_stream_tostring_)(mlx_string* str, mlx_stream stream) = NULL;
@@ -2411,6 +2420,9 @@ bool (*mlx_stream_equal_)(mlx_stream lhs, mlx_stream rhs) = NULL;
 int (*mlx_stream_get_device_)(mlx_device* dev, mlx_stream stream) = NULL;
 int (*mlx_stream_get_index_)(int* index, mlx_stream stream) = NULL;
 int (*mlx_synchronize_)(mlx_stream stream) = NULL;
+int (*mlx_synchronize_default_)(void) = NULL;
+int (*mlx_synchronize_thread_local_)(mlx_stream_thread_local tls) = NULL;
+int (*mlx_clear_streams_)(void) = NULL;
 int (*mlx_get_default_stream_)(mlx_stream* stream, mlx_device dev) = NULL;
 int (*mlx_set_default_stream_)(mlx_stream stream) = NULL;
 mlx_stream (*mlx_default_cpu_stream_new_)(void) = NULL;
@@ -2543,6 +2555,28 @@ int (*mlx_vector_string_append_data_)(
 int (*mlx_vector_string_append_value_)(mlx_vector_string vec, const char* val) = NULL;
 size_t (*mlx_vector_string_size_)(mlx_vector_string vec) = NULL;
 int (*mlx_vector_string_get_)(char** res, const mlx_vector_string vec, size_t idx) = NULL;
+mlx_vector_stream (*mlx_vector_stream_new_)(void) = NULL;
+int (*mlx_vector_stream_set_)(mlx_vector_stream* vec, const mlx_vector_stream src) = NULL;
+int (*mlx_vector_stream_free_)(mlx_vector_stream vec) = NULL;
+mlx_vector_stream (*mlx_vector_stream_new_data_)(
+    const mlx_stream* data,
+    size_t size) = NULL;
+mlx_vector_stream (*mlx_vector_stream_new_value_)(const mlx_stream val) = NULL;
+int (*mlx_vector_stream_set_data_)(
+    mlx_vector_stream* vec,
+    const mlx_stream* data,
+    size_t size) = NULL;
+int (*mlx_vector_stream_set_value_)(mlx_vector_stream* vec, const mlx_stream val) = NULL;
+int (*mlx_vector_stream_append_data_)(
+    mlx_vector_stream vec,
+    const mlx_stream* data,
+    size_t size) = NULL;
+int (*mlx_vector_stream_append_value_)(mlx_vector_stream vec, const mlx_stream val) = NULL;
+size_t (*mlx_vector_stream_size_)(mlx_vector_stream vec) = NULL;
+int (*mlx_vector_stream_get_)(
+    mlx_stream* res,
+    const mlx_vector_stream vec,
+    size_t idx) = NULL;
 int (*mlx_version_)(mlx_string* str_) = NULL;
 
 int mlx_dynamic_load_symbols(mlx_dynamic_handle handle) {
@@ -3130,6 +3164,11 @@ int mlx_dynamic_load_symbols(mlx_dynamic_handle handle) {
     CHECK_LOAD(handle, mlx_stream_new);
     CHECK_LOAD(handle, mlx_stream_new_device);
     CHECK_LOAD(handle, mlx_stream_new_thread_unsafe);
+    CHECK_LOAD(handle, mlx_stream_thread_local_new);
+    CHECK_LOAD(handle, mlx_stream_thread_local_set);
+    CHECK_LOAD(handle, mlx_stream_thread_local_free);
+    CHECK_LOAD(handle, mlx_stream_from_thread_local);
+    CHECK_LOAD(handle, mlx_get_streams);
     CHECK_LOAD(handle, mlx_stream_set);
     CHECK_LOAD(handle, mlx_stream_free);
     CHECK_LOAD(handle, mlx_stream_tostring);
@@ -3137,6 +3176,9 @@ int mlx_dynamic_load_symbols(mlx_dynamic_handle handle) {
     CHECK_LOAD(handle, mlx_stream_get_device);
     CHECK_LOAD(handle, mlx_stream_get_index);
     CHECK_LOAD(handle, mlx_synchronize);
+    CHECK_LOAD(handle, mlx_synchronize_default);
+    CHECK_LOAD(handle, mlx_synchronize_thread_local);
+    CHECK_LOAD(handle, mlx_clear_streams);
     CHECK_LOAD(handle, mlx_get_default_stream);
     CHECK_LOAD(handle, mlx_set_default_stream);
     CHECK_LOAD(handle, mlx_default_cpu_stream_new);
@@ -3200,6 +3242,17 @@ int mlx_dynamic_load_symbols(mlx_dynamic_handle handle) {
     CHECK_LOAD(handle, mlx_vector_string_append_value);
     CHECK_LOAD(handle, mlx_vector_string_size);
     CHECK_LOAD(handle, mlx_vector_string_get);
+    CHECK_LOAD(handle, mlx_vector_stream_new);
+    CHECK_LOAD(handle, mlx_vector_stream_set);
+    CHECK_LOAD(handle, mlx_vector_stream_free);
+    CHECK_LOAD(handle, mlx_vector_stream_new_data);
+    CHECK_LOAD(handle, mlx_vector_stream_new_value);
+    CHECK_LOAD(handle, mlx_vector_stream_set_data);
+    CHECK_LOAD(handle, mlx_vector_stream_set_value);
+    CHECK_LOAD(handle, mlx_vector_stream_append_data);
+    CHECK_LOAD(handle, mlx_vector_stream_append_value);
+    CHECK_LOAD(handle, mlx_vector_stream_size);
+    CHECK_LOAD(handle, mlx_vector_stream_get);
     CHECK_LOAD(handle, mlx_version);
     return 0;
 }

x/mlxrunner/mlx/generated.h

@@ -589,6 +589,11 @@
 #define mlx_stream_new mlx_stream_new_mlx_gen_orig_
 #define mlx_stream_new_device mlx_stream_new_device_mlx_gen_orig_
 #define mlx_stream_new_thread_unsafe mlx_stream_new_thread_unsafe_mlx_gen_orig_
+#define mlx_stream_thread_local_new mlx_stream_thread_local_new_mlx_gen_orig_
+#define mlx_stream_thread_local_set mlx_stream_thread_local_set_mlx_gen_orig_
+#define mlx_stream_thread_local_free mlx_stream_thread_local_free_mlx_gen_orig_
+#define mlx_stream_from_thread_local mlx_stream_from_thread_local_mlx_gen_orig_
+#define mlx_get_streams mlx_get_streams_mlx_gen_orig_
 #define mlx_stream_set mlx_stream_set_mlx_gen_orig_
 #define mlx_stream_free mlx_stream_free_mlx_gen_orig_
 #define mlx_stream_tostring mlx_stream_tostring_mlx_gen_orig_
@@ -596,6 +601,9 @@
 #define mlx_stream_get_device mlx_stream_get_device_mlx_gen_orig_
 #define mlx_stream_get_index mlx_stream_get_index_mlx_gen_orig_
 #define mlx_synchronize mlx_synchronize_mlx_gen_orig_
+#define mlx_synchronize_default mlx_synchronize_default_mlx_gen_orig_
+#define mlx_synchronize_thread_local mlx_synchronize_thread_local_mlx_gen_orig_
+#define mlx_clear_streams mlx_clear_streams_mlx_gen_orig_
 #define mlx_get_default_stream mlx_get_default_stream_mlx_gen_orig_
 #define mlx_set_default_stream mlx_set_default_stream_mlx_gen_orig_
 #define mlx_default_cpu_stream_new mlx_default_cpu_stream_new_mlx_gen_orig_
@@ -659,6 +667,17 @@
 #define mlx_vector_string_append_value mlx_vector_string_append_value_mlx_gen_orig_
 #define mlx_vector_string_size mlx_vector_string_size_mlx_gen_orig_
 #define mlx_vector_string_get mlx_vector_string_get_mlx_gen_orig_
+#define mlx_vector_stream_new mlx_vector_stream_new_mlx_gen_orig_
+#define mlx_vector_stream_set mlx_vector_stream_set_mlx_gen_orig_
+#define mlx_vector_stream_free mlx_vector_stream_free_mlx_gen_orig_
+#define mlx_vector_stream_new_data mlx_vector_stream_new_data_mlx_gen_orig_
+#define mlx_vector_stream_new_value mlx_vector_stream_new_value_mlx_gen_orig_
+#define mlx_vector_stream_set_data mlx_vector_stream_set_data_mlx_gen_orig_
+#define mlx_vector_stream_set_value mlx_vector_stream_set_value_mlx_gen_orig_
+#define mlx_vector_stream_append_data mlx_vector_stream_append_data_mlx_gen_orig_
+#define mlx_vector_stream_append_value mlx_vector_stream_append_value_mlx_gen_orig_
+#define mlx_vector_stream_size mlx_vector_stream_size_mlx_gen_orig_
+#define mlx_vector_stream_get mlx_vector_stream_get_mlx_gen_orig_
 #define mlx_version mlx_version_mlx_gen_orig_
 
 #include "mlx/c/mlx.h"
@@ -1247,6 +1266,11 @@
 #undef mlx_stream_new
 #undef mlx_stream_new_device
 #undef mlx_stream_new_thread_unsafe
+#undef mlx_stream_thread_local_new
+#undef mlx_stream_thread_local_set
+#undef mlx_stream_thread_local_free
+#undef mlx_stream_from_thread_local
+#undef mlx_get_streams
 #undef mlx_stream_set
 #undef mlx_stream_free
 #undef mlx_stream_tostring
@@ -1254,6 +1278,9 @@
 #undef mlx_stream_get_device
 #undef mlx_stream_get_index
 #undef mlx_synchronize
+#undef mlx_synchronize_default
+#undef mlx_synchronize_thread_local
+#undef mlx_clear_streams
 #undef mlx_get_default_stream
 #undef mlx_set_default_stream
 #undef mlx_default_cpu_stream_new
@@ -1317,6 +1344,17 @@
 #undef mlx_vector_string_append_value
 #undef mlx_vector_string_size
 #undef mlx_vector_string_get
+#undef mlx_vector_stream_new
+#undef mlx_vector_stream_set
+#undef mlx_vector_stream_free
+#undef mlx_vector_stream_new_data
+#undef mlx_vector_stream_new_value
+#undef mlx_vector_stream_set_data
+#undef mlx_vector_stream_set_value
+#undef mlx_vector_stream_append_data
+#undef mlx_vector_stream_append_value
+#undef mlx_vector_stream_size
+#undef mlx_vector_stream_get
 #undef mlx_version
 
 extern size_t (*mlx_dtype_size_)(mlx_dtype dtype);
@@ -3717,6 +3755,15 @@ extern int (*mlx_random_uniform_)(
 extern mlx_stream (*mlx_stream_new_)(void);
 extern mlx_stream (*mlx_stream_new_device_)(mlx_device dev);
 extern mlx_stream (*mlx_stream_new_thread_unsafe_)(mlx_device dev);
+extern mlx_stream_thread_local (*mlx_stream_thread_local_new_)(mlx_device dev);
+extern int (*mlx_stream_thread_local_set_)(
+    mlx_stream_thread_local* tls,
+    const mlx_stream_thread_local src);
+extern int (*mlx_stream_thread_local_free_)(mlx_stream_thread_local tls);
+extern int (*mlx_stream_from_thread_local_)(
+    mlx_stream* res,
+    const mlx_stream_thread_local tls);
+extern int (*mlx_get_streams_)(mlx_vector_stream* res);
 extern int (*mlx_stream_set_)(mlx_stream* stream, const mlx_stream src);
 extern int (*mlx_stream_free_)(mlx_stream stream);
 extern int (*mlx_stream_tostring_)(mlx_string* str, mlx_stream stream);
@@ -3724,6 +3771,9 @@ extern bool (*mlx_stream_equal_)(mlx_stream lhs, mlx_stream rhs);
 extern int (*mlx_stream_get_device_)(mlx_device* dev, mlx_stream stream);
 extern int (*mlx_stream_get_index_)(int* index, mlx_stream stream);
 extern int (*mlx_synchronize_)(mlx_stream stream);
+extern int (*mlx_synchronize_default_)(void);
+extern int (*mlx_synchronize_thread_local_)(mlx_stream_thread_local tls);
+extern int (*mlx_clear_streams_)(void);
 extern int (*mlx_get_default_stream_)(mlx_stream* stream, mlx_device dev);
 extern int (*mlx_set_default_stream_)(mlx_stream stream);
 extern mlx_stream (*mlx_default_cpu_stream_new_)(void);
@@ -3856,6 +3906,28 @@ extern int (*mlx_vector_string_append_data_)(
 extern int (*mlx_vector_string_append_value_)(mlx_vector_string vec, const char* val);
 extern size_t (*mlx_vector_string_size_)(mlx_vector_string vec);
 extern int (*mlx_vector_string_get_)(char** res, const mlx_vector_string vec, size_t idx);
+extern mlx_vector_stream (*mlx_vector_stream_new_)(void);
+extern int (*mlx_vector_stream_set_)(mlx_vector_stream* vec, const mlx_vector_stream src);
+extern int (*mlx_vector_stream_free_)(mlx_vector_stream vec);
+extern mlx_vector_stream (*mlx_vector_stream_new_data_)(
+    const mlx_stream* data,
+    size_t size);
+extern mlx_vector_stream (*mlx_vector_stream_new_value_)(const mlx_stream val);
+extern int (*mlx_vector_stream_set_data_)(
+    mlx_vector_stream* vec,
+    const mlx_stream* data,
+    size_t size);
+extern int (*mlx_vector_stream_set_value_)(mlx_vector_stream* vec, const mlx_stream val);
+extern int (*mlx_vector_stream_append_data_)(
+    mlx_vector_stream vec,
+    const mlx_stream* data,
+    size_t size);
+extern int (*mlx_vector_stream_append_value_)(mlx_vector_stream vec, const mlx_stream val);
+extern size_t (*mlx_vector_stream_size_)(mlx_vector_stream vec);
+extern int (*mlx_vector_stream_get_)(
+    mlx_stream* res,
+    const mlx_vector_stream vec,
+    size_t idx);
 extern int (*mlx_version_)(mlx_string* str_);
 
 int mlx_dynamic_load_symbols(mlx_dynamic_handle handle);
@@ -7426,6 +7498,25 @@ static inline mlx_stream mlx_stream_new_device(mlx_device dev) {
 static inline mlx_stream mlx_stream_new_thread_unsafe(mlx_device dev) {
     return mlx_stream_new_thread_unsafe_(dev);
 }
+static inline mlx_stream_thread_local mlx_stream_thread_local_new(mlx_device dev) {
+    return mlx_stream_thread_local_new_(dev);
+}
+static inline int mlx_stream_thread_local_set(
+    mlx_stream_thread_local* tls,
+    const mlx_stream_thread_local src) {
+    return mlx_stream_thread_local_set_(tls, src);
+}
+static inline int mlx_stream_thread_local_free(mlx_stream_thread_local tls) {
+    return mlx_stream_thread_local_free_(tls);
+}
+static inline int mlx_stream_from_thread_local(
+    mlx_stream* res,
+    const mlx_stream_thread_local tls) {
+    return mlx_stream_from_thread_local_(res, tls);
+}
+static inline int mlx_get_streams(mlx_vector_stream* res) {
+    return mlx_get_streams_(res);
+}
 static inline int mlx_stream_set(mlx_stream* stream, const mlx_stream src) {
     return mlx_stream_set_(stream, src);
 }
@@ -7447,6 +7538,15 @@ static inline int mlx_stream_get_index(int* index, mlx_stream stream) {
 static inline int mlx_synchronize(mlx_stream stream) {
     return mlx_synchronize_(stream);
 }
+static inline int mlx_synchronize_default(void) {
+    return mlx_synchronize_default_();
+}
+static inline int mlx_synchronize_thread_local(mlx_stream_thread_local tls) {
+    return mlx_synchronize_thread_local_(tls);
+}
+static inline int mlx_clear_streams(void) {
+    return mlx_clear_streams_();
+}
 static inline int mlx_get_default_stream(mlx_stream* stream, mlx_device dev) {
     return mlx_get_default_stream_(stream, dev);
 }
@@ -7705,6 +7805,50 @@ static inline size_t mlx_vector_string_size(mlx_vector_string vec) {
 static inline int mlx_vector_string_get(char** res, const mlx_vector_string vec, size_t idx) {
     return mlx_vector_string_get_(res, vec, idx);
 }
+static inline mlx_vector_stream mlx_vector_stream_new(void) {
+    return mlx_vector_stream_new_();
+}
+static inline int mlx_vector_stream_set(mlx_vector_stream* vec, const mlx_vector_stream src) {
+    return mlx_vector_stream_set_(vec, src);
+}
+static inline int mlx_vector_stream_free(mlx_vector_stream vec) {
+    return mlx_vector_stream_free_(vec);
+}
+static inline mlx_vector_stream mlx_vector_stream_new_data(
+    const mlx_stream* data,
+    size_t size) {
+    return mlx_vector_stream_new_data_(data, size);
+}
+static inline mlx_vector_stream mlx_vector_stream_new_value(const mlx_stream val) {
+    return mlx_vector_stream_new_value_(val);
+}
+static inline int mlx_vector_stream_set_data(
+    mlx_vector_stream* vec,
+    const mlx_stream* data,
+    size_t size) {
+    return mlx_vector_stream_set_data_(vec, data, size);
+}
+static inline int mlx_vector_stream_set_value(mlx_vector_stream* vec, const mlx_stream val) {
+    return mlx_vector_stream_set_value_(vec, val);
+}
+static inline int mlx_vector_stream_append_data(
+    mlx_vector_stream vec,
+    const mlx_stream* data,
+    size_t size) {
+    return mlx_vector_stream_append_data_(vec, data, size);
+}
+static inline int mlx_vector_stream_append_value(mlx_vector_stream vec, const mlx_stream val) {
+    return mlx_vector_stream_append_value_(vec, val);
+}
+static inline size_t mlx_vector_stream_size(mlx_vector_stream vec) {
+    return mlx_vector_stream_size_(vec);
+}
+static inline int mlx_vector_stream_get(
+    mlx_stream* res,
+    const mlx_vector_stream vec,
+    size_t idx) {
+    return mlx_vector_stream_get_(res, vec, idx);
+}
 static inline int mlx_version(mlx_string* str_) {
     return mlx_version_(str_);
 }

x/mlxrunner/mlx/include/mlx/c/device.h

@@ -7,7 +7,6 @@
 #include <stddef.h>
 
 #include "mlx/c/string.h"
-#include "mlx/c/vector.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -26,6 +25,12 @@ typedef struct mlx_device_ {
   void* ctx;
 } mlx_device;
 
+/**
+ * A MLX vector of strings.
+ * Forward declaration to avoid circular references.
+ */
+typedef struct mlx_vector_string_ mlx_vector_string;
+
 /**
  * Device type.
  */

x/mlxrunner/mlx/include/mlx/c/io_types.h

@@ -37,10 +37,10 @@ typedef struct mlx_io_vtable_ {
   bool (*is_open)(void*);
   bool (*good)(void*);
   size_t (*tell)(void*);
-  void (*seek)(void*, int64_t off, int whence);
+  int (*seek)(void*, int64_t off, int whence);
-  void (*read)(void*, char* data, size_t n);
+  size_t (*read)(void*, char* data, size_t n);
-  void (*read_at_offset)(void*, char* data, size_t n, size_t off);
+  size_t (*read_at_offset)(void*, char* data, size_t n, size_t off);
-  void (*write)(void*, const char* data, size_t n);
+  size_t (*write)(void*, const char* data, size_t n);
   const char* (*label)(void*);
   void (*free)(void*);
 } mlx_io_vtable;

x/mlxrunner/mlx/include/mlx/c/stream.h

@@ -4,6 +4,7 @@
 #define MLX_STREAM_H
 
 #include <stdbool.h>
+#include <stddef.h>
 
 #include "mlx/c/device.h"
 
@@ -24,6 +25,22 @@ typedef struct mlx_stream_ {
   void* ctx;
 } mlx_stream;
 
+/**
+ * A per-thread stream object.
+ *
+ * The same thread-local stream can be used from any number of threads; the
+ * stream's GPU command encoder is registered once per thread.
+ */
+typedef struct mlx_stream_thread_local_ {
+  void* ctx;
+} mlx_stream_thread_local;
+
+/**
+ * A vector of mlx_stream.
+ * Forward declaration to avoid circular references.
+ */
+typedef struct mlx_vector_stream_ mlx_vector_stream;
+
 /**
  * Returns a new empty stream.
  */
@@ -45,6 +62,36 @@ mlx_stream mlx_stream_new_device(mlx_device dev);
  * responsibility to ensure there are no data races on them.
  */
 mlx_stream mlx_stream_new_thread_unsafe(mlx_device dev);
+
+/**
+ * Returns a new per-thread stream on a device.
+ *
+ * Streams created this way are unique per thread: evaluating the same
+ * `mlx_stream_thread_local` from different threads yields distinct streams.
+ */
+mlx_stream_thread_local mlx_stream_thread_local_new(mlx_device dev);
+/**
+ * Set a per-thread stream to the provided src stream.
+ */
+int mlx_stream_thread_local_set(
+    mlx_stream_thread_local* tls,
+    const mlx_stream_thread_local src);
+/**
+ * Free a per-thread stream.
+ */
+int mlx_stream_thread_local_free(mlx_stream_thread_local tls);
+/**
+ * Returns the concrete stream backing a per-thread stream on the current
+ * thread.
+ */
+int mlx_stream_from_thread_local(
+    mlx_stream* res,
+    const mlx_stream_thread_local tls);
+
+/**
+ * Get the vector of available streams.
+ */
+int mlx_get_streams(mlx_vector_stream* res);
 /**
  * Set stream to provided src stream.
  */
@@ -73,6 +120,18 @@ int mlx_stream_get_index(int* index, mlx_stream stream);
  * Synchronize with the provided stream.
  */
 int mlx_synchronize(mlx_stream stream);
+/**
+ * Synchronize with the default stream.
+ */
+int mlx_synchronize_default(void);
+/**
+ * Synchronize with the stream corresponding to the current thread.
+ */
+int mlx_synchronize_thread_local(mlx_stream_thread_local tls);
+/**
+ * Destroy all streams created in the current thread.
+ */
+int mlx_clear_streams(void);
 /**
  * Returns the default stream on the given device.
  */

x/mlxrunner/mlx/include/mlx/c/vector.h

@@ -7,6 +7,7 @@
 #define MLX_VECTOR_H
 
 #include "mlx/c/array.h"
+#include "mlx/c/stream.h"
 #include "mlx/c/string.h"
 
 #ifdef __cplusplus
@@ -124,6 +125,35 @@ int mlx_vector_string_append_value(mlx_vector_string vec, const char* val);
 size_t mlx_vector_string_size(mlx_vector_string vec);
 int mlx_vector_string_get(char** res, const mlx_vector_string vec, size_t idx);
 
+/**
+ * A vector of stream.
+ */
+typedef struct mlx_vector_stream_ {
+  void* ctx;
+} mlx_vector_stream;
+mlx_vector_stream mlx_vector_stream_new(void);
+int mlx_vector_stream_set(mlx_vector_stream* vec, const mlx_vector_stream src);
+int mlx_vector_stream_free(mlx_vector_stream vec);
+mlx_vector_stream mlx_vector_stream_new_data(
+    const mlx_stream* data,
+    size_t size);
+mlx_vector_stream mlx_vector_stream_new_value(const mlx_stream val);
+int mlx_vector_stream_set_data(
+    mlx_vector_stream* vec,
+    const mlx_stream* data,
+    size_t size);
+int mlx_vector_stream_set_value(mlx_vector_stream* vec, const mlx_stream val);
+int mlx_vector_stream_append_data(
+    mlx_vector_stream vec,
+    const mlx_stream* data,
+    size_t size);
+int mlx_vector_stream_append_value(mlx_vector_stream vec, const mlx_stream val);
+size_t mlx_vector_stream_size(mlx_vector_stream vec);
+int mlx_vector_stream_get(
+    mlx_stream* res,
+    const mlx_vector_stream vec,
+    size_t idx);
+
 /**@}*/
 
 #ifdef __cplusplus