diff options
Diffstat (limited to 'src/core/lib/support/alloc.c')
-rw-r--r-- | src/core/lib/support/alloc.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/core/lib/support/alloc.c b/src/core/lib/support/alloc.c new file mode 100644 index 0000000000..618c3f6acd --- /dev/null +++ b/src/core/lib/support/alloc.c @@ -0,0 +1,92 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include <grpc/support/alloc.h> + +#include <grpc/support/log.h> +#include <grpc/support/port_platform.h> +#include <stdlib.h> +#include "src/core/lib/profiling/timers.h" + +static gpr_allocation_functions g_alloc_functions = {malloc, realloc, free}; + +gpr_allocation_functions gpr_get_allocation_functions() { + return g_alloc_functions; +} + +void gpr_set_allocation_functions(gpr_allocation_functions functions) { + GPR_ASSERT(functions.malloc_fn != NULL); + GPR_ASSERT(functions.realloc_fn != NULL); + GPR_ASSERT(functions.free_fn != NULL); + g_alloc_functions = functions; +} + +void *gpr_malloc(size_t size) { + void *p; + if (size == 0) return NULL; + GPR_TIMER_BEGIN("gpr_malloc", 0); + p = g_alloc_functions.malloc_fn(size); + if (!p) { + abort(); + } + GPR_TIMER_END("gpr_malloc", 0); + return p; +} + +void gpr_free(void *p) { + GPR_TIMER_BEGIN("gpr_free", 0); + g_alloc_functions.free_fn(p); + GPR_TIMER_END("gpr_free", 0); +} + +void *gpr_realloc(void *p, size_t size) { + if ((size == 0) && (p == NULL)) return NULL; + GPR_TIMER_BEGIN("gpr_realloc", 0); + p = g_alloc_functions.realloc_fn(p, size); + if (!p) { + abort(); + } + GPR_TIMER_END("gpr_realloc", 0); + return p; +} + +void *gpr_malloc_aligned(size_t size, size_t alignment_log) { + size_t alignment = ((size_t)1) << alignment_log; + size_t extra = alignment - 1 + sizeof(void *); + void *p = gpr_malloc(size + extra); + void **ret = (void **)(((uintptr_t)p + extra) & ~(alignment - 1)); + ret[-1] = p; + return (void *)ret; +} + +void gpr_free_aligned(void *ptr) { gpr_free(((void **)ptr)[-1]); } |