emileclarkb/hammer
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

add h_alloc() which calls errx() on failure and use it for all basic allocation

Browse source 
Rationale: "Basic allocation" refers to things outside of parsing proper,
mostly initialization. If such allocations fail, the system is globally
emory-starved from which it will likely not recover by returning failure.
In this case, terminating the process is in fact the most robust strategy as
it may mean the difference between a permanent hang and a temporary crash.
This commit is contained in:
Sven M. Hallberg 2015-11-30 16:37:00 +01:00
parent ca1d8df06c
commit 3fc56a0dc3
6 changed files with 30 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

24
src/allocator.h
View file

@ -24,17 +24,6 @@
extern "C" {
#endif
// TODO(thequux): Turn this into an "HAllocatorVtable", and add a wrapper that also takes an environment pointer.
typedef struct HAllocator_ {
void* (*alloc)(struct HAllocator_* allocator, size_t size);
void* (*realloc)(struct HAllocator_* allocator, void* ptr, size_t size);
void (*free)(struct HAllocator_* allocator, void* ptr);
} HAllocator;
typedef struct HArena_ HArena ; // hidden implementation
HArena *h_new_arena(HAllocator* allocator, size_t block_size); // pass 0 for default...
#if defined __llvm__
# if __has_attribute(malloc)
# define ATTR_MALLOC(n) __attribute__((malloc))
@ -49,6 +38,19 @@ HArena *h_new_arena(HAllocator* allocator, size_t block_size); // pass 0 for def
# define ATTR_MALLOC(n)
#endif
// TODO(thequux): Turn this into an "HAllocatorVtable", and add a wrapper that also takes an environment pointer.
typedef struct HAllocator_ {
void* (*alloc)(struct HAllocator_* allocator, size_t size);
void* (*realloc)(struct HAllocator_* allocator, void* ptr, size_t size);
void (*free)(struct HAllocator_* allocator, void* ptr);
} HAllocator;
void* h_alloc(HAllocator* allocator, size_t size) ATTR_MALLOC(2);
typedef struct HArena_ HArena ; // hidden implementation
HArena *h_new_arena(HAllocator* allocator, size_t block_size); // pass 0 for default...
void* h_arena_malloc(HArena *arena, size_t count) ATTR_MALLOC(2);
void h_arena_free(HArena *arena, void* ptr); // For future expansion, with alternate memory managers.
void h_delete_arena(HArena *arena);