From c119c1aa394de3152b9fef2cbd7aa78df6522b29 Mon Sep 17 00:00:00 2001
From: Florian Loitsch <florian@toit.io>
Date: Fri, 31 May 2024 10:09:02 +0200
Subject: [PATCH] Increase host flash size to 64MB. (#2375)

---
 src/flash_registry_posix.cc |  2 +-
 src/flash_registry_win.cc   |  2 +-
 tests/storage-test.toit     | 17 +++++++++++++++++
 3 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/flash_registry_posix.cc b/src/flash_registry_posix.cc
index 23b08ec03..b1287826b 100644
--- a/src/flash_registry_posix.cc
+++ b/src/flash_registry_posix.cc
@@ -32,7 +32,7 @@
 
 namespace toit {
 
-static const int ALLOCATION_SIZE = 2 * MB;
+static const int ALLOCATION_SIZE = 64 * MB;
 
 static void* allocations_mmap = null;
 static size_t allocations_mmap_size = 0;
diff --git a/src/flash_registry_win.cc b/src/flash_registry_win.cc
index 56118e068..56a381167 100644
--- a/src/flash_registry_win.cc
+++ b/src/flash_registry_win.cc
@@ -22,7 +22,7 @@
 
 namespace toit {
 
-static const word ALLOCATION_SIZE = 2 * MB;
+static const word ALLOCATION_SIZE = 64 * MB;
 
 // An aligned (FLASH_BASED_SIZE) view into the allocations_malloced.
 uint8* FlashRegistry::allocations_memory_ = null;
diff --git a/tests/storage-test.toit b/tests/storage-test.toit
index 57c375ba0..75a97f006 100644
--- a/tests/storage-test.toit
+++ b/tests/storage-test.toit
@@ -25,6 +25,7 @@ main:
   test-region-flash-out-of-space
   test-region-flash-stream
   test-region-flash-no-writable
+  test-region-flash-large
 
   test-region-flash-delete
   test-region-flash-list
@@ -338,6 +339,22 @@ test-region-flash-no-writable:
   region.read --from=0 --to=1
   region.close
 
+test-region-flash-large:
+  capacity := 60_000_000  // Roughly 60 MB.
+  region := storage.Region.open --flash "region-large" --capacity=capacity
+  region.erase
+  content := ByteArray capacity
+  1000.repeat:
+    content[random capacity] = random 0x100
+  content[0] = 42
+  content[capacity - 1] = 0x42
+  region.write --at=0 content
+  region.close
+  region = storage.Region.open --flash "region-large" --capacity=capacity
+  stored := region.read --from=0 --to=capacity
+  expect-equals content stored
+  region.close
+
 test-region-flash-delete:
   region := storage.Region.open --flash "region-3" --capacity=8192
   expect-throw "ALREADY_IN_USE": storage.Region.delete --flash "region-3"