mirrors/Odin
1
0
Fork 0
mirror of https://github.com/odin-lang/Odin.git synced 2026-01-01 02:42:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

Use local mutex for each AstFile.arena

Browse Source
This commit is contained in:
gingerBill
2021-08-26 23:10:15 +01:00
parent 2f34f1283a
commit da79124e5d
3 changed files with 20 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
src/common_memory.cpp
View File

@@ -59,6 +59,8 @@ struct MemoryBlock {
struct Arena {
MemoryBlock * curr_block;
isize minimum_block_size;
bool use_local_mutex;
BlockingMutex local_mutex;
};
enum { DEFAULT_MINIMUM_BLOCK_SIZE = 8ll*1024ll*1024ll };
@@ -79,15 +81,25 @@ isize arena_align_forward_offset(Arena *arena, isize alignment) {
return alignment_offset;
}
void arena_init_local_mutex(Arena *arena) {
mutex_init(&arena->local_mutex);
arena->use_local_mutex = true;
}
void *arena_alloc(Arena *arena, isize min_size, isize alignment) {
GB_ASSERT(gb_is_power_of_two(alignment));
isize size = 0;
// TODO(bill): make it so that this can be done lock free (if possible)
mutex_lock(&global_memory_allocator_mutex);
BlockingMutex *mutex = &global_memory_allocator_mutex;
if (arena->use_local_mutex) {
mutex = &arena->local_mutex;
}
mutex_lock(mutex);
isize size = 0;
if (arena->curr_block != nullptr) {
size = min_size + arena_align_forward_offset(arena, alignment);
}
@@ -112,7 +124,7 @@ void *arena_alloc(Arena *arena, isize min_size, isize alignment) {
curr_block->used += size;
GB_ASSERT(curr_block->used <= curr_block->size);
mutex_unlock(&global_memory_allocator_mutex);
mutex_unlock(mutex);
// NOTE(bill): memory will be zeroed by default due to virtual memory
return ptr;