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Diffstat (limited to 'sal/rtl/alloc_global.cxx')
-rw-r--r--sal/rtl/alloc_global.cxx265
1 files changed, 3 insertions, 262 deletions
diff --git a/sal/rtl/alloc_global.cxx b/sal/rtl/alloc_global.cxx
index 1a3a26f00069..9ceba4f4120f 100644
--- a/sal/rtl/alloc_global.cxx
+++ b/sal/rtl/alloc_global.cxx
@@ -30,239 +30,12 @@
#include <rtllifecycle.h>
#include <oslmemory.h>
-AllocMode alloc_mode = AllocMode::UNSET;
-
-#if !defined(FORCE_SYSALLOC)
-static void determine_alloc_mode()
-{
- assert(alloc_mode == AllocMode::UNSET);
- alloc_mode = AllocMode::SYSTEM;
-}
-
-static const sal_Size g_alloc_sizes[] =
-{
- /* powers of 2**(1/4) */
- 4 * 4, 6 * 4,
- 4 * 8, 5 * 8, 6 * 8, 7 * 8,
- 4 * 16, 5 * 16, 6 * 16, 7 * 16,
- 4 * 32, 5 * 32, 6 * 32, 7 * 32,
- 4 * 64, 5 * 64, 6 * 64, 7 * 64,
- 4 * 128, 5 * 128, 6 * 128, 7 * 128,
- 4 * 256, 5 * 256, 6 * 256, 7 * 256,
- 4 * 512, 5 * 512, 6 * 512, 7 * 512,
- 4 * 1024, 5 * 1024, 6 * 1024, 7 * 1024,
- 4 * 2048, 5 * 2048, 6 * 2048, 7 * 2048,
- 4 * 4096
-};
-
-#define RTL_MEMORY_CACHED_LIMIT 4 * 4096
-#define RTL_MEMORY_CACHED_SIZES (SAL_N_ELEMENTS(g_alloc_sizes))
-
-static rtl_cache_type * g_alloc_caches[RTL_MEMORY_CACHED_SIZES] =
-{
- nullptr,
-};
-
-#define RTL_MEMALIGN 8
-#define RTL_MEMALIGN_SHIFT 3
-
-static rtl_cache_type * g_alloc_table[RTL_MEMORY_CACHED_LIMIT >> RTL_MEMALIGN_SHIFT] =
-{
- nullptr,
-};
-
-static rtl_arena_type * gp_alloc_arena = nullptr;
-
-void * rtl_allocateMemory_CUSTOM(sal_Size n) SAL_THROW_EXTERN_C()
-{
- void * p = nullptr;
- if (n > 0)
- {
- char * addr;
- sal_Size size = RTL_MEMORY_ALIGN(n + RTL_MEMALIGN, RTL_MEMALIGN);
-
- assert(RTL_MEMALIGN >= sizeof(sal_Size));
- if (n >= SAL_MAX_SIZE - (RTL_MEMALIGN + RTL_MEMALIGN - 1))
- {
- /* requested size too large for roundup alignment */
- return nullptr;
- }
-
-try_alloc:
- if (size <= RTL_MEMORY_CACHED_LIMIT)
- addr = static_cast<char*>(rtl_cache_alloc(g_alloc_table[(size - 1) >> RTL_MEMALIGN_SHIFT]));
- else
- addr = static_cast<char*>(rtl_arena_alloc (gp_alloc_arena, &size));
-
- if (addr)
- {
- reinterpret_cast<sal_Size*>(addr)[0] = size;
- p = addr + RTL_MEMALIGN;
- }
- else if (!gp_alloc_arena)
- {
- ensureMemorySingleton();
- if (gp_alloc_arena)
- {
- /* try again */
- goto try_alloc;
- }
- }
- }
- return p;
-}
-
-void rtl_freeMemory_CUSTOM (void * p) SAL_THROW_EXTERN_C()
-{
- if (p)
- {
- char * addr = static_cast<char*>(p) - RTL_MEMALIGN;
- sal_Size size = reinterpret_cast<sal_Size*>(addr)[0];
-
- if (size <= RTL_MEMORY_CACHED_LIMIT)
- rtl_cache_free(g_alloc_table[(size - 1) >> RTL_MEMALIGN_SHIFT], addr);
- else
- rtl_arena_free (gp_alloc_arena, addr, size);
- }
-}
-
-void * rtl_reallocateMemory_CUSTOM (void * p, sal_Size n) SAL_THROW_EXTERN_C()
-{
- if (n > 0)
- {
- if (p)
- {
- void * p_old = p;
- sal_Size n_old = reinterpret_cast<sal_Size*>( static_cast<char*>(p) - RTL_MEMALIGN )[0] - RTL_MEMALIGN;
-
- p = rtl_allocateMemory (n);
- if (p)
- {
- memcpy (p, p_old, std::min(n, n_old));
- rtl_freeMemory (p_old);
- }
- }
- else
- {
- p = rtl_allocateMemory (n);
- }
- }
- else if (p)
- {
- rtl_freeMemory (p);
- p = nullptr;
- }
- return p;
-}
-
-#endif
-
-void rtl_memory_init()
-{
-#if !defined(FORCE_SYSALLOC)
- {
- /* global memory arena */
- assert(!gp_alloc_arena);
-
- gp_alloc_arena = rtl_arena_create (
- "rtl_alloc_arena",
- 2048, /* quantum */
- 0, /* w/o quantum caching */
- nullptr, /* default source */
- rtl_arena_alloc,
- rtl_arena_free,
- 0 /* flags */
- );
- assert(gp_alloc_arena);
- }
- {
- sal_Size size;
- int i, n = RTL_MEMORY_CACHED_SIZES;
-
- for (i = 0; i < n; i++)
- {
- char name[RTL_CACHE_NAME_LENGTH + 1];
- (void) snprintf (name, sizeof(name), "rtl_alloc_%" SAL_PRIuUINTPTR, g_alloc_sizes[i]);
- g_alloc_caches[i] = rtl_cache_create (name, g_alloc_sizes[i], 0, nullptr, nullptr, nullptr, nullptr, nullptr, 0);
- }
-
- size = RTL_MEMALIGN;
- for (i = 0; i < n; i++)
- {
- while (size <= g_alloc_sizes[i])
- {
- g_alloc_table[(size - 1) >> RTL_MEMALIGN_SHIFT] = g_alloc_caches[i];
- size += RTL_MEMALIGN;
- }
- }
- }
-#endif
-}
-
-void rtl_memory_fini()
-{
-#if !defined(FORCE_SYSALLOC)
- int i, n;
-
- /* clear g_alloc_table */
- // cppcheck-suppress sizeofwithsilentarraypointer
- memset (g_alloc_table, 0, sizeof(g_alloc_table));
-
- /* cleanup g_alloc_caches */
- for (i = 0, n = RTL_MEMORY_CACHED_SIZES; i < n; i++)
- {
- if (g_alloc_caches[i])
- {
- rtl_cache_destroy (g_alloc_caches[i]);
- g_alloc_caches[i] = nullptr;
- }
- }
-
- /* cleanup gp_alloc_arena */
- if (gp_alloc_arena)
- {
- rtl_arena_destroy (gp_alloc_arena);
- gp_alloc_arena = nullptr;
- }
-#endif
-}
-
-void * rtl_allocateMemory_SYSTEM(sal_Size n)
-{
- return malloc (n);
-}
-
-void rtl_freeMemory_SYSTEM(void * p)
-{
- free (p);
-}
-
-void * rtl_reallocateMemory_SYSTEM(void * p, sal_Size n)
-{
- return realloc (p, n);
-}
-
void* SAL_CALL rtl_allocateMemory(sal_Size n) SAL_THROW_EXTERN_C()
{
SAL_WARN_IF(
n >= SAL_MAX_INT32, "sal.rtl",
"suspicious massive alloc " << n);
-#if !defined(FORCE_SYSALLOC)
- while (true)
- {
- if (alloc_mode == AllocMode::CUSTOM)
- {
- return rtl_allocateMemory_CUSTOM(n);
- }
- if (alloc_mode == AllocMode::SYSTEM)
- {
- return rtl_allocateMemory_SYSTEM(n);
- }
- determine_alloc_mode();
- }
-#else
- return rtl_allocateMemory_SYSTEM(n);
-#endif
+ return malloc (n);
}
void* SAL_CALL rtl_reallocateMemory(void * p, sal_Size n) SAL_THROW_EXTERN_C()
@@ -270,44 +43,12 @@ void* SAL_CALL rtl_reallocateMemory(void * p, sal_Size n) SAL_THROW_EXTERN_C()
SAL_WARN_IF(
n >= SAL_MAX_INT32, "sal.rtl",
"suspicious massive alloc " << n);
-#if !defined(FORCE_SYSALLOC)
- while (true)
- {
- if (alloc_mode == AllocMode::CUSTOM)
- {
- return rtl_reallocateMemory_CUSTOM(p,n);
- }
- if (alloc_mode == AllocMode::SYSTEM)
- {
- return rtl_reallocateMemory_SYSTEM(p,n);
- }
- determine_alloc_mode();
- }
-#else
- return rtl_reallocateMemory_SYSTEM(p,n);
-#endif
+ return realloc (p, n);
}
void SAL_CALL rtl_freeMemory(void * p) SAL_THROW_EXTERN_C()
{
-#if !defined(FORCE_SYSALLOC)
- while (true)
- {
- if (alloc_mode == AllocMode::CUSTOM)
- {
- rtl_freeMemory_CUSTOM(p);
- return;
- }
- if (alloc_mode == AllocMode::SYSTEM)
- {
- rtl_freeMemory_SYSTEM(p);
- return;
- }
- determine_alloc_mode();
- }
-#else
- rtl_freeMemory_SYSTEM(p);
-#endif
+ free (p);
}
void * SAL_CALL rtl_allocateZeroMemory(sal_Size n) SAL_THROW_EXTERN_C()
generated by cgit (git 2.34.1) at 2024-08-22 08:45:09 +0000