Add memorymonitor module

1 files changed, 113 insertions, 0 deletions

diff --git a/shared-bindings/memorymonitor/AllocationAlarm.c b/shared-bindings/memorymonitor/AllocationAlarm.c
new file mode 100644
index 000000000..836bf7833
--- /dev/null
+++ b/shared-bindings/memorymonitor/AllocationAlarm.c
@@ -0,0 +1,113 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdint.h>
+
+#include "py/objproperty.h"
+#include "py/runtime.h"
+#include "py/runtime0.h"
+#include "shared-bindings/memorymonitor/AllocationAlarm.h"
+#include "shared-bindings/util.h"
+#include "supervisor/shared/translate.h"
+
+//| class AllocationAlarm:
+//|
+//|     def __init__(self, *, minimum_block_count=1):
+//|         """Throw an exception when an allocation of ``minimum_block_count`` or more blocks
+//|            occurs while active.
+//|
+//|         Track allocations::
+//|
+//|           import memorymonitor
+//|
+//|           aa = memorymonitor.AllocationAlarm(minimum_block_count=2)
+//|           x = 2
+//|           # Should not allocate any blocks.
+//|           with aa:
+//|               x = 5
+//|
+//|           # Should throw an exception when allocating storage for the 20 bytes.
+//|           with aa:
+//|               x = bytearray(20)
+//|
+//|         """
+//|         ...
+//|
+STATIC mp_obj_t memorymonitor_allocationalarm_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    enum { ARG_minimum_block_count };
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_minimum_block_count, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
+    };
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+    mp_int_t minimum_block_count = args[ARG_minimum_block_count].u_int;
+    if (minimum_block_count < 1) {
+        mp_raise_ValueError_varg(translate("%q must be >= 1"), MP_QSTR_minimum_block_count);
+    }
+
+    memorymonitor_allocationalarm_obj_t *self = m_new_obj(memorymonitor_allocationalarm_obj_t);
+    self->base.type = &memorymonitor_allocationalarm_type;
+
+    common_hal_memorymonitor_allocationalarm_construct(self, minimum_block_count);
+
+    return MP_OBJ_FROM_PTR(self);
+}
+
+//|     def __enter__(self) -> memorymonitor.AllocationAlarm:
+//|         """Enables the alarm."""
+//|         ...
+//|
+STATIC mp_obj_t memorymonitor_allocationalarm_obj___enter__(mp_obj_t self_in) {
+    common_hal_memorymonitor_allocationalarm_resume(self_in);
+    return self_in;
+}
+MP_DEFINE_CONST_FUN_OBJ_1(memorymonitor_allocationalarm___enter___obj, memorymonitor_allocationalarm_obj___enter__);
+
+//|     def __exit__(self) -> None:
+//|         """Automatically disables the allocation alarm when exiting a context. See
+//|         :ref:`lifetime-and-contextmanagers` for more info."""
+//|         ...
+//|
+STATIC mp_obj_t memorymonitor_allocationalarm_obj___exit__(size_t n_args, const mp_obj_t *args) {
+    (void)n_args;
+    common_hal_memorymonitor_allocationalarm_pause(args[0]);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(memorymonitor_allocationalarm___exit___obj, 4, 4, memorymonitor_allocationalarm_obj___exit__);
+
+STATIC const mp_rom_map_elem_t memorymonitor_allocationalarm_locals_dict_table[] = {
+    // Methods
+    { MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&memorymonitor_allocationalarm___enter___obj) },
+    { MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&memorymonitor_allocationalarm___exit___obj) },
+};
+STATIC MP_DEFINE_CONST_DICT(memorymonitor_allocationalarm_locals_dict, memorymonitor_allocationalarm_locals_dict_table);
+
+const mp_obj_type_t memorymonitor_allocationalarm_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_AllocationAlarm,
+    .make_new = memorymonitor_allocationalarm_make_new,
+    .locals_dict = (mp_obj_dict_t*)&memorymonitor_allocationalarm_locals_dict,
+};